/* FocusFund - Page Specific Styles */

/* ===== Landing Page ===== */
.landing-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-xl);
}

.landing-hero {
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.hero-badge {
  display: inline-block;
  background: hsla(210, 60%, 55%, 0.1);
  color: var(--color-accent-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
  border: 1px solid hsla(210, 60%, 55%, 0.2);
}

.hero-title {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3xl);
  flex-wrap: wrap;
}

.hero-stats .stat {
  text-align: center;
}

.hero-stats .stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stats .stat-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

/* ===== Onboarding Page ===== */
.onboarding-container {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-xl);
}

.onboarding-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-3xl);
}

.progress-step {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  border: var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: var(--transition-base);
}

.progress-step.active,
.progress-step.completed {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--color-text-primary);
}

.progress-line {
  width: 60px;
  height: 2px;
  background: var(--color-bg-light);
}

.onboarding-step {
  display: none;
  animation: fadeIn 0.4s ease;
}

.onboarding-step.active {
  display: block;
}

.step-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.step-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.room-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.pomodoro-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.step-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* ===== Courses Page ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

/* ===== Course Detail Page ===== */
.course-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.course-detail-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.course-detail-icon {
  font-size: 2.5rem;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsla(210, 60%, 55%, 0.1);
  border-radius: var(--radius-lg);
}

.course-detail-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.course-detail-desc {
  color: var(--color-text-secondary);
}

.course-detail-content {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--spacing-xl);
}

@media (max-width: 900px) {
  .course-detail-content {
    grid-template-columns: 1fr;
  }
}

.course-main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.course-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* Roadmap */
.roadmap {
  position: relative;
}

.roadmap::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-bg-light);
}

.roadmap-item {
  display: flex;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
  position: relative;
}

.roadmap-marker {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  border: var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  position: relative;
  z-index: 1;
}

.roadmap-item.completed .roadmap-marker {
  background: var(--color-success);
  border-color: transparent;
  color: white;
}

.roadmap-item.current .roadmap-marker {
  background: var(--gradient-primary);
  border-color: transparent;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-glow);
}

.roadmap-content {
  flex: 1;
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.roadmap-content h4 {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.roadmap-content p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.roadmap-checklist {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.roadmap-checklist label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.roadmap-checklist input[type="checkbox"] {
  accent-color: var(--color-accent-primary);
}

/* Q&A Section */
.qa-section {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.qa-input {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.qa-list {
  display: flex;
  flex-direction: column;
}

/* AI Corner */
.ai-corner {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.ai-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.ai-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Resources Section */
.resources-section {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.resources-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.resources-list {
  display: flex;
  flex-direction: column;
}

/* ===== Rooms Page ===== */
.rooms-filters {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

/* ===== Study Room Page ===== */
.study-room-container {
  display: grid;
  grid-template-columns: 1fr 350px;
  min-height: calc(100vh - 70px);
}

@media (max-width: 900px) {
  .study-room-container {
    grid-template-columns: 1fr;
  }
}

.study-room-main {
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
}

.room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.room-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.room-info h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
}

.room-status {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
}

.room-status.studying {
  background: hsla(210, 60%, 55%, 0.15);
  color: var(--color-accent-primary);
}

.room-status.break {
  background: hsla(150, 50%, 45%, 0.15);
  color: var(--color-success);
}

/* Timer Section */
.timer-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) 0;
}

.timer-display {
  margin-bottom: var(--spacing-xl);
}

.timer-ring {
  position: relative;
  width: 200px;
  height: 200px;
}

.timer-ring svg {
  width: 100%;
  height: 100%;
}

.timer-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: baseline;
  font-family: var(--font-display);
}

.timer-minutes,
.timer-seconds {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.timer-separator {
  font-size: 3rem;
  color: var(--color-text-muted);
  margin: 0 2px;
}

.timer-controls {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.timer-btn {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.timer-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow);
}

.timer-btn svg {
  width: 24px;
  height: 24px;
}

.timer-btn .pause-icon {
  display: none;
}

.timer-btn.running .play-icon {
  display: none;
}

.timer-btn.running .pause-icon {
  display: block;
}

.timer-btn-secondary {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.timer-btn-secondary:hover {
  background: var(--color-bg-card-hover);
  color: var(--color-text-primary);
}

.session-info {
  text-align: center;
}

.session-phase {
  display: block;
  font-size: 0.9rem;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-xs);
}

.session-goal {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Members Section */
.members-section {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.members-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.members-list {
  display: flex;
  flex-direction: column;
}

/* Chat Section */
.chat-section {
  background: var(--color-bg-medium);
  border-left: var(--border-subtle);
  display: flex;
  flex-direction: column;
}

.chat-header {
  padding: var(--spacing-lg);
  border-bottom: var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.chat-status {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.chat-messages {
  flex: 1;
  padding: var(--spacing-lg);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.chat-message {
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.chat-message.system {
  background: hsla(210, 60%, 55%, 0.1);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.chat-author {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-xs);
  display: block;
}

.chat-message p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.chat-input-container {
  padding: var(--spacing-md);
  border-top: var(--border-subtle);
  display: flex;
  gap: var(--spacing-sm);
}

.chat-input-container.disabled {
  opacity: 0.5;
}

.chat-input {
  flex: 1;
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  font-family: var(--font-primary);
}

.chat-send {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Check-in Modal */
.checkin-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: hsla(0, 0%, 0%, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.checkin-modal.hidden {
  display: none;
}

.checkin-content {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  max-width: 400px;
  width: 90%;
}

.checkin-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.checkin-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.checkin-content .input {
  margin-bottom: var(--spacing-lg);
}

/* ===== Break Page ===== */
.break-container {
  display: grid;
  grid-template-columns: 1fr 400px;
  min-height: calc(100vh - 70px);
}

@media (max-width: 900px) {
  .break-container {
    grid-template-columns: 1fr;
  }
}

.break-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
}

.break-header {
  margin-bottom: var(--spacing-xl);
}

.break-emoji {
  font-size: 4rem;
  display: block;
  margin-bottom: var(--spacing-md);
}

.break-header h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.break-header p {
  color: var(--color-text-secondary);
}

.break-timer {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl) var(--spacing-3xl);
  margin-bottom: var(--spacing-xl);
}

.break-time {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.break-timer p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.break-suggestions {
  margin-bottom: var(--spacing-xl);
}

.break-suggestions h3 {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.suggestion-cards {
  display: flex;
  gap: var(--spacing-md);
}

.break-chat {
  background: var(--color-bg-medium);
  border-left: var(--border-subtle);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}

.break-chat h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.break-chat-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.break-chat-input {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.break-chat-input input {
  flex: 1;
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  font-family: var(--font-primary);
}

.break-chat-input button {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-primary);
}

/* ===== AI Output Page ===== */
.ai-output-container {
  max-width: 800px;
  margin: 0 auto;
}

.ai-output-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.ai-output-icon {
  font-size: 2.5rem;
}

.ai-output-header h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
}

.ai-output-content {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.ai-output-content h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent-primary);
}

.ai-output-content p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.ai-output-content ul {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.ai-output-content li {
  padding: var(--spacing-sm) 0;
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.ai-output-content li::before {
  content: '•';
  color: var(--color-accent-primary);
}

.ai-output-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* Quiz Styles */
.quiz-question {
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.quiz-question h4 {
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border: var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.quiz-option:hover {
  border-color: var(--color-accent-primary);
}

/* ===== Dashboard Page ===== */
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-card {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.dashboard-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

/* Bar Chart */
.chart-container {
  height: 200px;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 100%;
  gap: var(--spacing-sm);
}

.bar {
  flex: 1;
  background: var(--color-bg-light);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  height: var(--height);
  position: relative;
  transition: var(--transition-base);
}

.bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: inherit;
  opacity: 0.7;
}

.bar.active::after {
  opacity: 1;
}

.bar span {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Focus Grid */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.focus-block {
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  text-align: center;
  color: var(--color-text-primary);
}

.focus-block.low {
  background: hsla(0, 0%, 50%, 0.2);
}

.focus-block.medium {
  background: hsla(40, 80%, 55%, 0.3);
}

.focus-block.high {
  background: hsla(150, 50%, 45%, 0.3);
}

.focus-legend {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.focus-legend i {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  margin-right: var(--spacing-xs);
}

.focus-legend i.low { background: hsla(0, 0%, 50%, 0.3); }
.focus-legend i.medium { background: hsla(40, 80%, 55%, 0.3); }
.focus-legend i.high { background: hsla(150, 50%, 45%, 0.3); }

/* Progress List */
.progress-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.progress-item .progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
}

.progress-bar-container {
  height: 8px;
  background: var(--color-bg-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

/* Achievement List */
.achievement-list {
  display: flex;
  flex-direction: column;
}

/* ===== Checkout Page ===== */
.checkout-container {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.checkout-content {
  max-width: 500px;
  text-align: center;
}

.checkout-emoji {
  font-size: 4rem;
  display: block;
  margin-bottom: var(--spacing-md);
}

.checkout-content h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.checkout-content > p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.checkout-summary {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}

.summary-stat {
  text-align: center;
}

.summary-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.summary-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.checkout-checklist {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.checkout-checklist h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.checklist-items {
  margin-bottom: var(--spacing-md);
}

.checkout-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* ===== Login/Auth Page ===== */
.auth-container {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.auth-card {
  background: var(--gradient-card);
  border: var(--border-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 420px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-logo {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--spacing-md);
}

.auth-header h1 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.auth-header p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.auth-tabs {
  display: flex;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: var(--spacing-xl);
}

.auth-tab {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.auth-tab.active {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.auth-form.hidden {
  display: none;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
  color: var(--color-text-muted);
}

.checkbox-label input {
  accent-color: var(--color-accent-primary);
}

.forgot-link {
  color: var(--color-accent-primary);
  text-decoration: none;
}

.forgot-link:hover {
  text-decoration: underline;
}

.btn-full {
  width: 100%;
  margin-top: var(--spacing-sm);
}

.auth-divider {
  display: flex;
  align-items: center;
  margin: var(--spacing-xl) 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-bg-light);
}

.auth-divider span {
  padding: 0 var(--spacing-md);
}

.social-auth {
  display: flex;
  gap: var(--spacing-md);
}

.social-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.social-btn:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-accent-primary);
}

/* ===== AI Chat Page ===== */
.ai-chat-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 70px);
}

@media (max-width: 900px) {
  .ai-chat-container {
    grid-template-columns: 1fr;
  }
  
  .ai-chat-sidebar {
    display: none;
  }
}

.ai-chat-sidebar {
  background: var(--color-bg-card);
  border-right: var(--border-card);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.chat-history h4 {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chat-history-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.chat-history-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.chat-history-item:hover {
  background: var(--color-bg-light);
}

.chat-history-item.active {
  background: hsla(210, 60%, 55%, 0.1);
  border: 1px solid hsla(210, 60%, 55%, 0.3);
}

.chat-history-icon {
  font-size: 1rem;
}

.chat-history-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-history-title {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-history-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.ai-chat-main {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 70px);
}

.ai-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  border-bottom: var(--border-card);
  background: var(--color-bg-card);
}

.ai-chat-header h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.ai-status {
  font-size: 0.8rem;
  color: var(--color-success);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.ai-status::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.ai-message {
  display: flex;
  gap: var(--spacing-md);
  max-width: 80%;
}

.ai-message.assistant {
  align-self: flex-start;
}

.ai-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.ai-message-avatar {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-full);
  background: var(--gradient-card);
  border: var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.ai-message.user .ai-message-avatar {
  background: var(--gradient-primary);
}

.ai-message-content {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
}

.ai-message.user .ai-message-content {
  background: hsla(210, 60%, 55%, 0.1);
  border-color: hsla(210, 60%, 55%, 0.3);
}

.ai-message-content p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.ai-message-content p:last-child {
  margin-bottom: 0;
}

.ai-message-content ul {
  margin: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
}

.ai-message-content li {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
}

.ai-chat-input-container {
  padding: var(--spacing-md) var(--spacing-xl) var(--spacing-xl);
  background: var(--color-bg-secondary);
  border-top: var(--border-card);
}

.ai-quick-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.ai-quick-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.ai-quick-btn:hover {
  background: hsla(210, 60%, 55%, 0.1);
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

.ai-chat-input-wrapper {
  display: flex;
  gap: var(--spacing-md);
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm) var(--spacing-md);
}

.ai-chat-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 0.95rem;
  font-family: var(--font-primary);
  resize: none;
  min-height: 24px;
  max-height: 120px;
}

.ai-chat-input:focus {
  outline: none;
}

.ai-chat-input::placeholder {
  color: var(--color-text-muted);
}

.ai-chat-send {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.ai-chat-send:hover {
  transform: scale(1.05);
}

/* Navigation Auth Styles */
.nav-auth {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-user.hidden {
  display: none;
}

.user-profile-wrapper {
  position: relative;
}

.user-avatar-nav {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 2px solid transparent;
}

.user-avatar-nav:hover {
  border-color: var(--color-accent-primary);
  transform: scale(1.05);
}

.user-name-nav {
  font-weight: 500;
  font-size: 0.9rem;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.85rem;
}

/* Profile Dropdown */
.user-profile-wrapper {
  position: relative;
}

.profile-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 280px;
  max-width: 320px;
  background: hsl(220, 25%, 12%);
  border: 1px solid hsla(210, 40%, 30%, 0.5);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  z-index: 2000;
  animation: dropdownFadeIn 0.2s ease;
  overflow: hidden;
}

.profile-dropdown.hidden {
  display: none;
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.dropdown-header {
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: hsla(220, 30%, 15%, 0.5);
}

.dropdown-avatar {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: white;
}

.dropdown-user-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
  flex: 1;
}

.dropdown-username {
  font-weight: 600;
  font-size: 0.95rem;
  color: hsl(210, 30%, 95%);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-email {
  font-size: 0.8rem;
  color: hsl(210, 20%, 55%);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-divider {
  height: 1px;
  background: hsla(210, 30%, 30%, 0.4);
  margin: 0;
}

.dropdown-menu {
  padding: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dropdown-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 10px 14px;
  border: none;
  background: transparent;
  color: hsl(210, 20%, 75%);
  font-size: 0.9rem;
  font-family: var(--font-primary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  text-align: left;
}

.dropdown-item:hover {
  background: hsla(210, 50%, 50%, 0.15);
  color: hsl(210, 30%, 95%);
}

.dropdown-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: hsl(210, 20%, 55%);
  transition: all 0.15s ease;
}

.dropdown-item:hover svg {
  color: var(--color-accent-primary);
}

.dropdown-item span {
  flex: 1;
  white-space: nowrap;
}

.dropdown-item.danger {
  color: hsl(0, 70%, 65%);
}

.dropdown-item.danger:hover {
  background: hsla(0, 60%, 50%, 0.15);
  color: hsl(0, 70%, 70%);
}

.dropdown-item.danger svg {
  color: hsl(0, 60%, 55%);
}

.dropdown-item.danger:hover svg {
  color: hsl(0, 70%, 65%);
}

.dropdown-item.logout {
  margin: var(--spacing-sm);
  margin-top: 0;
  color: hsl(210, 20%, 70%);
}

.dropdown-item.logout:hover {
  background: hsla(210, 50%, 50%, 0.15);
  color: hsl(210, 30%, 95%);
}

/* ===== Account Settings Page ===== */
.account-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 70px);
}

@media (max-width: 900px) {
  .account-container {
    grid-template-columns: 1fr;
  }
}

.account-sidebar {
  background: var(--color-bg-secondary);
  border-right: var(--border-card);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}

.account-sidebar-header {
  margin-bottom: var(--spacing-xl);
}

.account-sidebar-header .back-btn {
  margin-bottom: var(--spacing-md);
}

.account-sidebar-header h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.account-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.account-nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: none;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-family: var(--font-primary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  text-align: left;
}

.account-nav-item:hover {
  background: hsla(210, 60%, 55%, 0.1);
  color: var(--color-text-primary);
}

.account-nav-item.active {
  background: hsla(210, 60%, 55%, 0.15);
  color: var(--color-accent-primary);
}

.account-nav-item.active svg {
  color: var(--color-accent-primary);
}

.account-nav-item svg {
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}

.account-nav-item:hover svg {
  color: var(--color-accent-primary);
}

.account-nav-item.danger {
  color: var(--color-error);
}

.account-nav-item.danger svg {
  color: var(--color-error);
}

.account-content {
  padding: var(--spacing-2xl);
  max-width: 700px;
}

.account-tab {
  display: none;
  animation: fadeIn 0.3s ease;
}

.account-tab.active {
  display: block;
}

.account-tab-header {
  margin-bottom: var(--spacing-xl);
}

.account-tab-header h1 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.account-tab-header p {
  color: var(--color-text-secondary);
}

.account-section {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-lg);
}

/* Profile Avatar Section */
.profile-avatar-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: var(--border-card);
}

.profile-avatar-large {
  width: 100px;
  height: 100px;
  min-width: 100px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 2.5rem;
}

.profile-avatar-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* Account Form */
.account-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.account-form .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.account-form label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

.account-form .input {
  padding: var(--spacing-sm) var(--spacing-md);
}

.account-form .textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

/* Password Strength */
.password-strength {
  margin-top: var(--spacing-sm);
}

.strength-bars {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
}

.strength-bar {
  flex: 1;
  height: 4px;
  background: var(--color-bg-light);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.strength-bar.weak {
  background: var(--color-error);
}

.strength-bar.fair {
  background: var(--color-warning);
}

.strength-bar.good {
  background: hsl(60, 80%, 50%);
}

.strength-bar.strong {
  background: var(--color-success);
}

.strength-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.strength-text.weak { color: var(--color-error); }
.strength-text.fair { color: var(--color-warning); }
.strength-text.good { color: hsl(60, 80%, 50%); }
.strength-text.strong { color: var(--color-success); }

/* Setting Row */
.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-bg-light);
}

.setting-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.setting-row:first-child {
  padding-top: 0;
}

.setting-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.setting-label {
  font-weight: 500;
  color: var(--color-text-primary);
}

.setting-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 50px;
  height: 26px;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-light);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--color-accent-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(24px);
}

/* Storage Info */
.storage-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.storage-visual {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.storage-bar {
  height: 12px;
  background: var(--color-bg-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.storage-used {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

.storage-stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.storage-used-text {
  color: var(--color-text-primary);
  font-weight: 500;
}

.storage-total-text {
  color: var(--color-text-muted);
}

.storage-breakdown {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.storage-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.storage-color {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

.storage-name {
  flex: 1;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.storage-size {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Danger Zone */
.danger-zone {
  border-color: hsla(0, 60%, 50%, 0.3);
  background: hsla(0, 60%, 50%, 0.05);
}

.danger-warning {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.danger-warning svg {
  color: var(--color-error);
  margin-bottom: var(--spacing-md);
}

.danger-warning h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-error);
  margin-bottom: var(--spacing-md);
}

.danger-warning p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.danger-warning ul {
  text-align: left;
  max-width: 400px;
  margin: 0 auto;
  padding-left: var(--spacing-xl);
}

.danger-warning li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
}

.deactivate-confirm {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.deactivate-confirm .checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  cursor: pointer;
}

.btn-danger {
  background: var(--color-error);
  color: white;
  padding: var(--spacing-sm) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.btn-danger:hover:not(:disabled) {
  background: hsl(0, 70%, 45%);
}

.btn-danger:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-outline {
  background: transparent;
  border: var(--border-card);
  color: var(--color-text-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-outline:hover {
  background: hsla(210, 60%, 55%, 0.1);
  border-color: var(--color-accent-primary);
}

/* ===== Notification Bell & Dropdown ===== */
.nav-user-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.notification-wrapper {
  position: relative;
}

.notification-bell {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: transparent;
  border: 1px solid hsla(210, 30%, 30%, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  color: var(--color-text-secondary);
}

.notification-bell:hover {
  background: hsla(210, 50%, 50%, 0.1);
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

.notification-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: var(--color-error);
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: 700;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: transparent;
  border: 1px solid hsla(210, 30%, 30%, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  color: var(--color-text-secondary);
}

.nav-icon-btn:hover {
  background: hsla(210, 50%, 50%, 0.1);
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

.notification-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 360px;
  max-height: 480px;
  background: hsl(220, 25%, 12%);
  border: 1px solid hsla(210, 40%, 30%, 0.5);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  z-index: 2000;
  overflow: hidden;
  animation: dropdownFadeIn 0.2s ease;
}

.notification-dropdown.hidden {
  display: none;
}

.notification-dropdown-header {
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid hsla(210, 30%, 30%, 0.4);
}

.notification-dropdown-header h4 {
  font-weight: 600;
  font-size: 1rem;
}

.mark-all-read {
  background: none;
  border: none;
  color: var(--color-accent-primary);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: var(--font-primary);
}

.mark-all-read:hover {
  text-decoration: underline;
}

.notification-list {
  max-height: 340px;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid hsla(210, 30%, 30%, 0.2);
  transition: background 0.15s ease;
}

.notification-item:hover {
  background: hsla(210, 50%, 50%, 0.05);
}

.notification-item.unread {
  background: hsla(210, 60%, 55%, 0.08);
}

.notification-item.unread::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--color-accent-primary);
  border-radius: var(--radius-full);
}

.notification-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-text {
  font-size: 0.9rem;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}

.notification-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.notification-dropdown-footer {
  padding: var(--spacing-sm);
  border-top: 1px solid hsla(210, 30%, 30%, 0.4);
}

/* ===== Public Profile Page ===== */
.profile-page-container {
  max-width: 900px;
  margin: 0 auto;
  padding-bottom: var(--spacing-3xl);
}

.profile-banner {
  height: 200px;
  background: linear-gradient(135deg, hsl(220, 40%, 20%), hsl(260, 40%, 25%));
  background-size: cover;
  background-position: center;
  position: relative;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, hsla(220, 30%, 10%, 0.3));
}

.change-banner-btn {
  position: absolute;
  bottom: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: hsla(0, 0%, 0%, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid hsla(210, 30%, 50%, 0.3);
  border-radius: var(--radius-md);
  color: white;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.change-banner-btn:hover {
  background: hsla(0, 0%, 0%, 0.8);
}

.profile-info-section {
  position: relative;
  padding: 0 var(--spacing-xl);
  margin-top: -60px;
}

.profile-avatar-wrapper {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.profile-page-avatar {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  border: 4px solid hsl(220, 25%, 12%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 700;
  overflow: hidden;
}

.profile-page-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-details {
  margin-top: var(--spacing-md);
}

.profile-name-section {
  margin-bottom: var(--spacing-sm);
}

.profile-display-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.profile-handle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.profile-bio-text {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  max-width: 500px;
}

.profile-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.profile-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.profile-stats-row {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.profile-stat-item {
  display: flex;
  gap: var(--spacing-xs);
}

.stat-number {
  font-weight: 700;
  color: var(--color-text-primary);
}

.profile-stat-item .stat-label {
  color: var(--color-text-muted);
}

.profile-action-buttons {
  display: flex;
  gap: var(--spacing-md);
}

/* Profile Tabs */
.profile-tabs {
  display: flex;
  border-bottom: 1px solid hsla(210, 30%, 30%, 0.4);
  margin: var(--spacing-xl) 0;
  padding: 0 var(--spacing-xl);
}

.profile-tab {
  padding: var(--spacing-md) var(--spacing-xl);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.profile-tab:hover {
  color: var(--color-text-primary);
}

.profile-tab.active {
  color: var(--color-accent-primary);
}

.profile-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent-primary);
  border-radius: var(--radius-full) var(--radius-full) 0 0;
}

/* Profile Tab Content */
.profile-tab-content {
  padding: 0 var(--spacing-xl);
}

.post-item {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.post-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.post-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  overflow: hidden;
}

.post-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-meta {
  display: flex;
  flex-direction: column;
}

.post-author {
  font-weight: 600;
  font-size: 0.95rem;
}

.post-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.post-content {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.post-actions {
  display: flex;
  gap: var(--spacing-lg);
}

.post-action {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: var(--transition-fast);
  font-family: var(--font-primary);
}

.post-action:hover {
  color: var(--color-accent-primary);
}

/* Achievement Grid */
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.achievement-card {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  transition: var(--transition-fast);
}

.achievement-card.earned {
  border-color: hsla(45, 100%, 50%, 0.3);
}

.achievement-card:not(.earned) {
  opacity: 0.5;
}

.achievement-badge {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.achievement-badge.locked {
  filter: grayscale(100%);
}

.achievement-card h4 {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.achievement-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Enrolled Courses */
.enrolled-courses {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.enrolled-course-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.enrolled-course-card .course-icon {
  font-size: 2rem;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: hsla(210, 60%, 55%, 0.1);
  border-radius: var(--radius-md);
}

.enrolled-course-card .course-info {
  flex: 1;
}

.enrolled-course-card h4 {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.course-progress-mini {
  height: 6px;
  background: var(--color-bg-light);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-xs);
  overflow: hidden;
}

.course-progress-mini .progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.enrolled-course-card span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
}

.stat-box {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
}

.stat-big-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.stat-description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ===== Notifications Page ===== */
.notifications-full-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.notification-day-group {
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.notification-day-title {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: hsla(210, 30%, 20%, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.notification-full-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-bottom: 1px solid hsla(210, 30%, 30%, 0.2);
  position: relative;
}

.notification-full-item:last-child {
  border-bottom: none;
}

.notification-full-item.unread {
  background: hsla(210, 60%, 55%, 0.05);
}

.notification-full-item.unread::before {
  content: '';
  position: absolute;
  left: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--color-accent-primary);
  border-radius: var(--radius-full);
}

.notification-icon-large {
  font-size: 2rem;
  flex-shrink: 0;
}

.notification-full-content {
  flex: 1;
}

.notification-full-text {
  font-size: 0.95rem;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1.5;
}

.notification-full-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== Language & Display Page ===== */
.settings-page-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 70px);
}

@media (max-width: 900px) {
  .settings-page-container {
    grid-template-columns: 1fr;
  }
}

.settings-sidebar {
  background: var(--color-bg-secondary);
  border-right: var(--border-card);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}

.settings-sidebar-header {
  margin-bottom: var(--spacing-xl);
}

.settings-sidebar-header .back-btn {
  margin-bottom: var(--spacing-md);
}

.settings-sidebar-header h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.settings-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.settings-nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: none;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  font-family: var(--font-primary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  text-align: left;
}

.settings-nav-item:hover {
  background: hsla(210, 60%, 55%, 0.1);
  color: var(--color-text-primary);
}

.settings-nav-item.active {
  background: hsla(210, 60%, 55%, 0.15);
  color: var(--color-accent-primary);
}

.settings-nav-item.active svg {
  color: var(--color-accent-primary);
}

.settings-nav-item svg {
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}

.settings-content {
  padding: var(--spacing-2xl);
  max-width: 700px;
}

.settings-tab {
  display: none;
  animation: fadeIn 0.3s ease;
}

.settings-tab.active {
  display: block;
}

/* Language Grid */
.language-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-md);
}

.language-option {
  cursor: pointer;
}

.language-option input {
  display: none;
}

.language-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}

.language-option input:checked + .language-content {
  border-color: var(--color-accent-primary);
  background: hsla(210, 60%, 55%, 0.1);
}

.language-flag {
  font-size: 2rem;
}

.language-name {
  font-weight: 500;
  font-size: 0.95rem;
}

/* Theme Options */
.theme-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.theme-option {
  cursor: pointer;
  text-align: center;
}

.theme-option input {
  display: none;
}

.theme-preview {
  height: 80px;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  border: 2px solid transparent;
  transition: var(--transition-fast);
  overflow: hidden;
}

.theme-option input:checked + .theme-preview {
  border-color: var(--color-accent-primary);
}

.dark-preview {
  background: hsl(220, 25%, 12%);
}

.dark-preview .theme-preview-header {
  height: 20px;
  background: hsl(220, 25%, 18%);
}

.dark-preview .theme-preview-content {
  padding: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-xs);
}

.dark-preview .theme-preview-content::before,
.dark-preview .theme-preview-content::after {
  content: '';
  height: 10px;
  background: hsl(220, 25%, 25%);
  border-radius: 2px;
}

.dark-preview .theme-preview-content::before {
  width: 60%;
}

.dark-preview .theme-preview-content::after {
  width: 30%;
}

.light-preview {
  background: hsl(0, 0%, 98%);
}

.light-preview .theme-preview-header {
  height: 20px;
  background: hsl(0, 0%, 95%);
}

.auto-preview {
  background: linear-gradient(135deg, hsl(220, 25%, 12%) 50%, hsl(0, 0%, 98%) 50%);
}

.theme-option span {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* Font Size Buttons */
.font-size-options {
  display: flex;
  gap: var(--spacing-md);
}

.font-size-btn {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  border: var(--border-card);
  color: var(--color-text-secondary);
  font-family: var(--font-primary);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.font-size-btn:first-child {
  font-size: 0.85rem;
}

.font-size-btn:nth-child(2) {
  font-size: 1rem;
}

.font-size-btn:last-child {
  font-size: 1.25rem;
}

.font-size-btn.active {
  border-color: var(--color-accent-primary);
  background: hsla(210, 60%, 55%, 0.1);
  color: var(--color-accent-primary);
}

/* Volume Control */
.volume-control {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.volume-slider-full {
  flex: 1;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-bg-light);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.volume-slider-full::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--color-accent-primary);
  cursor: pointer;
}

.volume-slider-full::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--color-accent-primary);
  cursor: pointer;
  border: none;
}

#volumeValue {
  min-width: 40px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Form Hints */
.form-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* Avatar Styles */
.user-avatar-nav {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 2px solid transparent;
  overflow: hidden;
}

.user-avatar-nav:hover {
  border-color: var(--color-accent-primary);
  transform: scale(1.05);
}

.user-avatar-nav .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-avatar-nav .avatar-initial.hidden,
.user-avatar-nav .avatar-image.hidden {
  display: none;
}

.dropdown-avatar {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: white;
  overflow: hidden;
}

.dropdown-avatar .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dropdown-avatar .avatar-initial.hidden,
.dropdown-avatar .avatar-image.hidden {
  display: none;
}

.profile-avatar-large {
  width: 100px;
  height: 100px;
  min-width: 100px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 2.5rem;
  overflow: hidden;
}

.profile-avatar-large .avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-avatar-large .avatar-initial.hidden,
.profile-avatar-large .avatar-image.hidden {
  display: none;
}

.profile-avatar-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.avatar-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Input with prefix */
.input-with-prefix {
  display: flex;
  align-items: center;
  background: var(--color-bg-light);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.input-prefix {
  padding: var(--spacing-sm) var(--spacing-md);
  background: hsla(210, 30%, 20%, 0.5);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.input-with-prefix .input {
  border: none;
  background: transparent;
  flex: 1;
}

/* Character count */
.char-count {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: right;
  margin-top: var(--spacing-xs);
}

/* Sessions list */
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.session-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.session-icon {
  font-size: 1.5rem;
}

.session-info {
  flex: 1;
}

.session-device {
  font-weight: 500;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.session-details {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.session-badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: hsla(150, 50%, 45%, 0.15);
  color: var(--color-success);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

/* Empty state */
.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--spacing-xl);
}

/* Form Error */
.form-error {
  color: var(--color-error);
  font-size: 0.85rem;
  margin-bottom: var(--spacing-md);
}

.form-error.hidden {
  display: none;
}

/* AI Avatar Image */
.ai-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    gap: var(--spacing-xl);
  }
  
  .pomodoro-options {
    grid-template-columns: 1fr;
  }
  
  .checkout-summary {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .nav-auth {
    gap: var(--spacing-xs);
  }
  
  .auth-card {
    padding: var(--spacing-lg);
  }
  
  .ai-message {
    max-width: 95%;
  }
  
  .profile-dropdown {
    width: 280px;
    right: -10px;
  }
  
  .notification-dropdown {
    width: 300px;
    right: -50px;
  }
  
  .account-sidebar,
  .settings-sidebar {
    display: none;
  }
  
  .account-content,
  .settings-content {
    padding: var(--spacing-lg);
  }
  
  .profile-avatar-section {
    flex-direction: column;
    text-align: center;
  }
  
  .profile-avatar-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .setting-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .profile-banner {
    height: 150px;
  }
  
  .profile-page-avatar {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
  }
  
  .profile-tabs {
    overflow-x: auto;
    padding: 0 var(--spacing-md);
  }
  
  .profile-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    white-space: nowrap;
  }
  
  .theme-options {
    grid-template-columns: 1fr;
  }
  
  .language-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}