:root {
  --primary-bg: #ffffff;
  --secondary-bg: #fafafa;
  --tertiary-bg: #f5f5f5;
  --primary-text: #000000;
  --secondary-text: #737373;
  --tertiary-text: #a3a3a3;
  --border-color: #e5e5e5;
  --hover-bg: #f5f5f5;
  --active-bg: #ececec;
  --accent-color: #000000;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.1);
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark-theme {
  --primary-bg: #0a0a0a;
  --secondary-bg: #141414;
  --tertiary-bg: #1a1a1a;
  --primary-text: #ffffff;
  --secondary-text: #a3a3a3;
  --tertiary-text: #737373;
  --border-color: #262626;
  --hover-bg: #1a1a1a;
  --active-bg: #262626;
  --accent-color: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.35);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  background: var(--primary-bg);
  color: var(--primary-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 80px 0;
}

.section-title {
  font-size: 48px;
  font-weight: 300;
  margin-bottom: 16px;
  text-align: center;
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--secondary-text);
  text-align: center;
  margin-bottom: 64px;
  font-weight: 300;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 400;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-color);
  color: var(--primary-bg);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--secondary-bg);
  color: var(--primary-text);
  border: 1px solid var(--border-color);
}

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

.btn-outline {
  background: transparent;
  color: var(--primary-text);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: var(--hover-bg);
  border-color: var(--primary-text);
}

.btn-block {
  width: 100%;
}

.btn-small {
  padding: 6px 12px;
  font-size: 14px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--primary-bg);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  padding: 16px 0;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo .logo {
  font-size: 24px;
  font-weight: 300;
  color: var(--primary-text);
  letter-spacing: 3px;
  text-transform: lowercase;
}

.logo-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links.active {
  display: flex;
}

.nav-links a {
  color: var(--secondary-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 300;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary-text);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--primary-text);
  font-size: 20px;
  cursor: pointer;
}

.theme-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--primary-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: var(--transition);
}

.theme-toggle:hover {
  background: var(--hover-bg);
  transform: scale(1.05);
}

.scroll-top {
  position: fixed;
  bottom: 84px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-color);
  color: var(--primary-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  opacity: 0.9;
  transform: translateY(-4px);
}

.hero {
  padding-top: 120px;
  padding-bottom: 80px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--tertiary-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 400;
  color: var(--secondary-text);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 64px;
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -2px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--secondary-text);
  margin-bottom: 40px;
  font-weight: 300;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.3);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
  }
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 32px;
  font-weight: 300;
  color: var(--primary-text);
}

.stat-label {
  font-size: 14px;
  color: var(--secondary-text);
  font-weight: 300;
}

.app-preview {
  background: var(--secondary-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  height: 500px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.app-tabs {
  display: flex;
  background: var(--tertiary-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 0 12px;
  overflow-x: auto;
}

.app-tab {
  flex: 1;
  min-width: max-content;
  padding: 14px 12px;
  background: none;
  border: none;
  color: var(--secondary-text);
  font-size: 12px;
  font-weight: 300;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
}

.app-tab span {
  display: none;
}

.app-tab:hover {
  color: var(--primary-text);
  background: var(--hover-bg);
}

.app-tab.active {
  color: var(--primary-text);
  border-bottom-color: var(--accent-color);
  background: var(--secondary-bg);
}

.app-content {
  flex: 1;
  overflow: hidden;
}

.tab-content {
  display: none;
  height: 100%;
  padding: 20px;
  overflow-y: auto;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.time-display {
  font-size: 32px;
  font-weight: 300;
  color: var(--secondary-text);
  text-align: center;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.date-display {
  font-size: 14px;
  color: var(--tertiary-text);
  text-align: center;
  margin-bottom: 24px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.preview-card {
  background: var(--tertiary-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 16px;
  transition: var(--transition);
}

.preview-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--secondary-text);
}

.card-header h4 {
  font-size: 14px;
  font-weight: 400;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 4px 0;
}

.task-check {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}

.task-item.completed .task-check {
  background: var(--success-color);
  border-color: var(--success-color);
  color: white;
}

.task-item.completed .task-text {
  text-decoration: line-through;
  color: var(--tertiary-text);
}

.task-text {
  font-size: 13px;
  color: var(--primary-text);
}

.event-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  padding: 4px 0;
}

.event-time {
  font-size: 12px;
  color: var(--secondary-text);
  min-width: 40px;
  font-weight: 500;
}

.event-text {
  font-size: 13px;
}

.stat-item {
  margin-bottom: 8px;
}

.stat-value {
  font-size: 20px;
  font-weight: 300;
  color: var(--primary-text);
  display: block;
}

.note-preview {
  font-size: 13px;
  color: var(--secondary-text);
  margin: 8px 0;
}

.note-btn {
  background: var(--accent-color);
  color: var(--primary-bg);
  border: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  width: 100%;
  transition: var(--transition);
}

.note-btn:hover {
  opacity: 0.9;
}

.notes-container {
  max-width: 100%;
}

.notes-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.notes-header h3 {
  font-size: 16px;
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
}

.notes-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.note-item {
  background: var(--tertiary-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.note-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-color);
}

.note-item h4 {
  font-size: 14px;
  font-weight: 400;
  margin-bottom: 6px;
}

.note-item p {
  font-size: 13px;
  color: var(--secondary-text);
}

.note-date {
  font-size: 11px;
  color: var(--tertiary-text);
  margin-top: 4px;
  display: block;
}

.tasks-container {
  max-width: 100%;
}

.tasks-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.tasks-header h3 {
  font-size: 16px;
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
}

.task-filters {
  display: flex;
  gap: 6px;
}

.filter-btn {
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  background: var(--tertiary-bg);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--secondary-text);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn.active {
  background: var(--accent-color);
  color: var(--primary-bg);
  border-color: var(--accent-color);
}

.filter-btn:hover {
  border-color: var(--accent-color);
}

.tasks-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-group h4 {
  font-size: 12px;
  font-weight: 400;
  color: var(--secondary-text);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.task-badge {
  margin-left: auto;
  padding: 2px 8px;
  background: var(--error-color);
  color: white;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 500;
}

.task-item.priority-high {
  border-left: 3px solid var(--error-color);
}

.task-item.priority-medium {
  border-left: 3px solid var(--warning-color);
}

.task-item.priority-low {
  border-left: 3px solid var(--info-color);
}

.canvas-container {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.canvas-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.tool-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--tertiary-bg);
  color: var(--secondary-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.tool-btn.active,
.tool-btn:hover {
  background: var(--accent-color);
  color: var(--primary-bg);
  border-color: var(--accent-color);
}

.color-picker input[type="color"] {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

#drawing-canvas {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--primary-bg);
  cursor: crosshair;
  display: block;
}

.canvas-hint {
  font-size: 11px;
  color: var(--tertiary-text);
  text-align: center;
  margin-top: 12px;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.calendar-header h3 {
  font-size: 16px;
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.calendar-nav button {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-color);
  background: var(--tertiary-bg);
  border-radius: var(--radius-sm);
  color: var(--secondary-text);
  cursor: pointer;
  transition: var(--transition);
}

.calendar-nav button:hover {
  background: var(--hover-bg);
  border-color: var(--accent-color);
}

.current-month {
  font-size: 14px;
  color: var(--primary-text);
  min-width: 120px;
  text-align: center;
  font-weight: 400;
}

.calendar-grid {
  background: var(--tertiary-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: var(--border-color);
  padding: 8px 0;
}

.calendar-weekdays div {
  text-align: center;
  font-size: 11px;
  color: var(--secondary-text);
  font-weight: 400;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--border-color);
}

.calendar-day {
  background: var(--primary-bg);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--secondary-text);
  cursor: pointer;
  transition: var(--transition);
}

.calendar-day:hover {
  background: var(--hover-bg);
}

.calendar-day.today {
  background: var(--accent-color);
  color: var(--primary-bg);
  font-weight: 500;
}

.calendar-day.other {
  color: var(--tertiary-text);
  opacity: 0.4;
}

.features {
  background: var(--secondary-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  background: var(--primary-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-text);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--tertiary-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 24px;
  color: var(--primary-text);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 400;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--secondary-text);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--secondary-text);
  margin-bottom: 6px;
}

.feature-list i {
  color: var(--success-color);
  font-size: 10px;
}

.roadmap {
  background: var(--primary-bg);
}

.roadmap-timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.roadmap-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.roadmap-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 48px;
}

.roadmap-icon {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--tertiary-bg);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary-text);
}

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

.roadmap-item.active .roadmap-icon {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--primary-bg);
  animation: pulse 2s infinite;
}

.roadmap-content h3 {
  font-size: 20px;
  font-weight: 400;
  margin-bottom: 8px;
}

.roadmap-content p {
  color: var(--secondary-text);
  margin-bottom: 4px;
}

.roadmap-date {
  font-size: 13px;
  color: var(--tertiary-text);
}

.faq {
  background: var(--secondary-bg);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--primary-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-question h3 {
  font-size: 16px;
  font-weight: 400;
}

.faq-question i {
  color: var(--secondary-text);
  transition: var(--transition);
  font-size: 14px;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 20px 20px;
  color: var(--secondary-text);
  line-height: 1.6;
}

.newsletter {
  background: var(--accent-color);
  color: var(--primary-bg);
}

.newsletter-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-content h2 {
  font-size: 36px;
  font-weight: 300;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.newsletter-content p {
  font-size: 18px;
  margin-bottom: 32px;
  opacity: 0.9;
}

.newsletter .btn-primary {
  background: var(--primary-bg);
  color: var(--accent-color);
}

.newsletter .btn-primary:hover {
  opacity: 0.9;
}

.footer {
  background: var(--secondary-bg);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  margin-bottom: 48px;
}

.footer-section h3 {
  font-size: 18px;
  font-weight: 400;
  margin-bottom: 16px;
}

.footer-section h4 {
  font-size: 14px;
  font-weight: 400;
  margin-bottom: 12px;
  color: var(--primary-text);
}

.footer-section p {
  color: var(--secondary-text);
  font-size: 14px;
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 8px;
}

.footer-section a {
  color: var(--secondary-text);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-text);
}

.social-links {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--tertiary-bg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary-text);
  transition: var(--transition);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  color: var(--secondary-text);
  font-size: 14px;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--primary-bg);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header i {
  font-size: 24px;
  color: var(--accent-color);
}

.modal-header h3 {
  font-size: 20px;
  font-weight: 400;
  flex: 1;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--secondary-text);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--primary-text);
}

.modal-content > p {
  padding: 16px 24px;
  color: var(--secondary-text);
}

.modal-content form {
  padding: 0 24px 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 400;
  margin-bottom: 8px;
  color: var(--primary-text);
}

.form-group input[type="email"],
.form-group input[type="text"] {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--secondary-bg);
  color: var(--primary-text);
  font-size: 14px;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.form-group input[type="checkbox"] {
  margin-right: 8px;
}

.error-message {
  color: var(--error-color);
  font-size: 12px;
  margin-top: 6px;
  min-height: 18px;
}

.success-message {
  padding: 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--success-color);
  border-radius: var(--radius-md);
  color: var(--success-color);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 16px 24px 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
}

.toast {
  position: fixed;
  bottom: 100px;
  right: 24px;
  background: var(--accent-color);
  color: var(--primary-bg);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  pointer-events: none;
  font-size: 14px;
  max-width: 300px;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.toast.success {
  background: var(--success-color);
}

.toast.error {
  background: var(--error-color);
}

.toast.warning {
  background: var(--warning-color);
}

.toast.info {
  background: var(--info-color);
}

@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 36px;
  }
  
  .nav-links {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: var(--primary-bg);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    display: none;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-title {
    font-size: 48px;
  }
  
  .hero-stats {
    flex-wrap: wrap;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .app-preview {
    height: 400px;
  }
  
  .app-tab span {
    display: none;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .roadmap-timeline::before {
    left: 15px;
  }
  
  .roadmap-item {
    padding-left: 50px;
  }
  
  .roadmap-icon {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }
  
  .theme-toggle,
  .scroll-top {
    right: 16px;
    bottom: 16px;
  }
  
  .scroll-top.visible {
    bottom: 76px;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-text);
}