:root {
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);

  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  --container-max: 1200px;
  --nav-height: 72px;
}

/* Dark theme (default) */
[data-theme="dark"] {
  --color-primary: #7C3AED;
  --color-secondary: #A855F7;
  --color-accent: #22C55E;

  --bg-base: #0F172A;
  --bg-card: #1E293B;
  --bg-elevated: #273549;
  --bg-input: #1E293B;

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --border-color: rgba(148, 163, 184, 0.12);
  --border-hover: rgba(148, 163, 184, 0.25);

  --glass-bg: rgba(30, 41, 59, 0.6);
  --glass-border: rgba(148, 163, 184, 0.1);

  --nav-bg: rgba(15, 23, 42, 0.85);
  --overlay-bg: rgba(0, 0, 0, 0.5);

  --gradient-hero: linear-gradient(135deg, #0F172A 0%, #1a1040 50%, #0F172A 100%);
  --gradient-primary: linear-gradient(135deg, #7C3AED, #A855F7);
  --gradient-accent: linear-gradient(135deg, #22C55E, #16A34A);

  --mockup-shadow: 0 20px 60px rgba(124, 58, 237, 0.15), 0 0 0 1px rgba(148, 163, 184, 0.1);
}

/* Light theme */
[data-theme="light"] {
  --color-primary: #7C3AED;
  --color-secondary: #A855F7;
  --color-accent: #16A34A;

  --bg-base: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-elevated: #F1F5F9;
  --bg-input: #F1F5F9;

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;

  --border-color: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(15, 23, 42, 0.18);

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(15, 23, 42, 0.08);

  --nav-bg: rgba(248, 250, 252, 0.85);
  --overlay-bg: rgba(0, 0, 0, 0.3);

  --gradient-hero: linear-gradient(135deg, #F8FAFC 0%, #f0e6ff 50%, #F8FAFC 100%);
  --gradient-primary: linear-gradient(135deg, #7C3AED, #A855F7);
  --gradient-accent: linear-gradient(135deg, #16A34A, #22C55E);

  --mockup-shadow: 0 20px 60px rgba(124, 58, 237, 0.1), 0 0 0 1px rgba(15, 23, 42, 0.06);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
}

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

.btn-secondary:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--gradient-accent);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 197, 94, 0.4);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--text-primary);
  z-index: 1001;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

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

.theme-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: all var(--transition-base);
}

[data-theme="dark"] .theme-toggle .icon-dark {
  opacity: 1;
  transform: rotate(0);
}

[data-theme="dark"] .theme-toggle .icon-light {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="light"] .theme-toggle .icon-dark {
  opacity: 0;
  transform: rotate(-90deg);
}

[data-theme="light"] .theme-toggle .icon-light {
  opacity: 1;
  transform: rotate(0);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 80px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 120%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -15%;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.mockup-card {
  width: 100%;
  max-width: 480px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--mockup-shadow);
  overflow: hidden;
  transform: rotateY(-4deg) rotateX(2deg);
  transition: transform var(--transition-slow);
}

.mockup-card:hover {
  transform: rotateY(0deg) rotateX(0deg);
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #EF4444; }
.dot-yellow { background: #EAB308; }
.dot-green { background: #22C55E; }

.mockup-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.mockup-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mockup-goal {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mockup-goal-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.mockup-goal-text {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
}

.mockup-progress-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mockup-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mockup-section-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.mockup-progress-percent {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
}

.mockup-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.mockup-progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 1.5s ease;
}

.mockup-tasks {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mockup-task-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mockup-task {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.mockup-task-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  font-weight: 700;
  flex-shrink: 0;
}

.mockup-task-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  flex-shrink: 0;
}

.mockup-task-pending {
  color: var(--text-muted);
}

.mockup-quote {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
}

.mockup-quote svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.mockup-quote p {
  font-size: 0.75rem;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.5;
}

.trusted-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.trusted-label {
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 40px;
}

.trusted-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.trusted-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

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

.trusted-card svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.trusted-card span {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.features-section {
  padding: 120px 0;
}

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

.feature-card {
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(124, 58, 237, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.how-section {
  padding: 120px 0;
  background: var(--bg-elevated);
}

.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-connector {
  position: absolute;
  top: 48px;
  left: calc(16.666% + 16px);
  right: calc(16.666% + 16px);
  height: 2px;
  z-index: 0;
}

.connector-line {
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.3;
  border-radius: var(--radius-full);
}

.step {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
}

.step-card {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  width: 100%;
  transition: all var(--transition-base);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.step-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(124, 58, 237, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.step-title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.why-section {
  padding: 120px 0;
}

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

.why-illustration {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  margin: 0 auto;
}

.illustration-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--border-color);
}

.illustration-circle-1 {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  opacity: 0.5;
  animation: pulse-slow 4s ease-in-out infinite;
}

.illustration-circle-2 {
  width: 70%;
  height: 70%;
  top: 15%;
  left: 15%;
  border-color: rgba(124, 58, 237, 0.3);
  animation: pulse-slow 4s ease-in-out 0.5s infinite;
}

.illustration-circle-3 {
  width: 40%;
  height: 40%;
  top: 30%;
  left: 30%;
  border-color: rgba(168, 85, 247, 0.4);
  animation: pulse-slow 4s ease-in-out 1s infinite;
}

.illustration-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.3);
}

.illustration-center svg {
  width: 32px;
  height: 32px;
  color: #FFFFFF;
}

@keyframes pulse-slow {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.05); opacity: 0.8; }
}

.why-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.why-list-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.why-list-item svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.testimonials-section {
  padding: 120px 0;
  background: var(--bg-elevated);
}

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

.testimonial-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.testimonial-stars {
  display: flex;
  gap: 2px;
}

.testimonial-stars svg {
  width: 18px;
  height: 18px;
  color: #EAB308;
  fill: #EAB308;
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-avatar span {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #FFFFFF;
}

.testimonial-info {
  display: flex;
  flex-direction: column;
}

.testimonial-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
}

.testimonial-role {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.faq-section {
  padding: 120px 0;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-item.active {
  border-color: rgba(124, 58, 237, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base), padding var(--transition-base);
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.cta-section {
  padding: 120px 0;
}

.cta-card {
  position: relative;
  padding: 80px 40px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  overflow: hidden;
  text-align: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.cta-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}

.cta-orb-1 {
  width: 400px;
  height: 400px;
  background: rgba(124, 58, 237, 0.12);
  top: -100px;
  left: -100px;
}

.cta-orb-2 {
  width: 350px;
  height: 350px;
  background: rgba(34, 197, 94, 0.08);
  bottom: -80px;
  right: -80px;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.cta-description {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.footer {
  padding: 80px 0 0;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
}

.footer-tagline {
  margin-top: 16px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 280px;
  line-height: 1.6;
}

.footer-heading {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.social-icons {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.social-link svg {
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
}

.social-link:hover svg {
  color: #FFFFFF;
}

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: 900;
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .why-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .why-visual {
    order: -1;
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-base);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    z-index: 1000;
  }

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

  .nav-link {
    font-size: 1.25rem;
    padding: 12px 24px;
  }

  .btn-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + 32px);
    padding-bottom: 48px;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .mockup-card {
    max-width: 360px;
    transform: none;
  }

  .mockup-card:hover {
    transform: none;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .step-connector {
    display: none;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .cta-card {
    padding: 48px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .trusted-grid {
    gap: 12px;
  }

  .trusted-card {
    padding: 12px 20px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .features-section,
  .how-section,
  .why-section,
  .testimonials-section,
  .faq-section,
  .cta-section {
    padding: 80px 0;
  }
}

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

  .hero-buttons .btn {
    width: 100%;
  }

  .mockup-body {
    padding: 18px;
    gap: 16px;
  }
}