/* style.css — Vantify: Midnight Operations */

/* ===== DESIGN TOKENS ===== */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Fonts */
  --font-display: 'General Sans', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;
}

/* ===== DARK THEME (DEFAULT) ===== */
:root, [data-theme="dark"] {
  --color-bg: #080F1A;
  --color-surface: #0F1724;
  --color-surface-2: #162033;
  --color-border: #1E2D45;
  --color-primary: #00D4AA;
  --color-primary-hover: #00B892;
  --color-primary-active: #009E7D;
  --color-secondary: #3B82F6;
  --color-text: #E8ECF4;
  --color-text-muted: #7B8BA3;
  --color-text-faint: #4A5568;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-text-inverse: #080F1A;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 212, 170, 0.15);
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
  --color-bg: #F4F6F9;
  --color-surface: #FFFFFF;
  --color-surface-2: #EDF0F5;
  --color-border: #D1D9E6;
  --color-primary: #00A886;
  --color-primary-hover: #009073;
  --color-primary-active: #007A62;
  --color-secondary: #2563EB;
  --color-text: #1A2332;
  --color-text-muted: #5A6B82;
  --color-text-faint: #94A3B8;
  --color-success: #059669;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-text-inverse: #F4F6F9;

  --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 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(0, 168, 134, 0.1);
}

/* ===== GLOBAL ===== */
body {
  font-family: var(--font-body);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  color: var(--color-primary-hover);
}

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-padding {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.serif-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: rgba(8, 15, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease-out);
}

[data-theme="light"] .header {
  background: rgba(244, 246, 249, 0.9);
}

.header--scrolled {
  border-bottom-color: var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.header__logo svg {
  width: 32px;
  min-width: 32px;
  height: 32px;
}

.footer__brand-logo svg {
  min-width: 28px;
}

.header__wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.header__nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-6);
}

.header__nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-interactive);
}

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

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-interactive);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn--primary:active {
  transform: translateY(0);
}

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

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn--outline:active {
  transform: translateY(0);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn--sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
}

/* Mobile nav */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 4px 0;
}

.mobile-menu-btn span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  top: 65px;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) var(--space-6);
  flex-direction: column;
  gap: var(--space-6);
}

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

.mobile-nav a {
  font-size: var(--text-lg);
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 500;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--space-32);
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 20%, transparent 100%);
}

[data-theme="light"] .hero__grid {
  background-image:
    linear-gradient(rgba(0, 168, 134, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 168, 134, 0.06) 1px, transparent 1px);
}

.hero__radar {
  position: absolute;
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 170, 0.06);
}

.hero__radar::before,
.hero__radar::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 170, 0.04);
}

.hero__radar::before {
  inset: 60px;
}

.hero__radar::after {
  inset: 150px;
}

.hero__sweep {
  position: absolute;
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  overflow: hidden;
}

.hero__sweep::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 50%;
  height: 50%;
  transform-origin: bottom left;
  background: conic-gradient(from 0deg, transparent, rgba(0, 212, 170, 0.08));
  animation: radar-sweep 4s linear infinite;
}

@keyframes radar-sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

[data-theme="light"] .hero__radar {
  border-color: rgba(0, 168, 134, 0.08);
}
[data-theme="light"] .hero__radar::before,
[data-theme="light"] .hero__radar::after {
  border-color: rgba(0, 168, 134, 0.06);
}
[data-theme="light"] .hero__sweep::after {
  background: conic-gradient(from 0deg, transparent, rgba(0, 168, 134, 0.1));
}

/* Glow orbs */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.hero__orb--1 {
  width: 400px;
  height: 400px;
  background: rgba(0, 212, 170, 0.12);
  top: 20%;
  right: 10%;
}

.hero__orb--2 {
  width: 300px;
  height: 300px;
  background: rgba(59, 130, 246, 0.1);
  bottom: 20%;
  left: 5%;
}

[data-theme="light"] .hero__orb--1 {
  background: rgba(0, 168, 134, 0.05);
  filter: blur(100px);
}
[data-theme="light"] .hero__orb--2 {
  background: rgba(37, 99, 235, 0.04);
  filter: blur(100px);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 850px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: 500;
  margin-bottom: var(--space-8);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.hero__title .serif-italic {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.6;
}

.hero__ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: var(--space-10);
  flex-wrap: wrap;
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
  align-self: center;
}

/* ===== SECTION TITLES ===== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== FEATURES ===== */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.feature-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 212, 170, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.feature-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== SAMPLES ===== */
.samples__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.sample-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.sample-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.sample-card__preview {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-bg) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}

.sample-card__preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 24px,
      rgba(0, 212, 170, 0.03) 24px,
      rgba(0, 212, 170, 0.03) 25px
    );
}

.sample-card__preview-logo {
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.sample-card__preview-type {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.sample-card__preview-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  max-width: 280px;
}

.sample-card__preview-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.sample-card__preview-lines {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: var(--space-6);
  width: 200px;
}

.sample-card__preview-line {
  height: 3px;
  background: var(--color-border);
  border-radius: 2px;
}

.sample-card__preview-line:nth-child(2) { width: 85%; }
.sample-card__preview-line:nth-child(3) { width: 70%; }

.sample-card__body {
  padding: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sample-card__info h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.sample-card__info p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ===== PRICING ===== */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
  position: relative;
}

.pricing-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.pricing-card--popular {
  border-color: var(--color-primary);
  box-shadow: 0 0 40px rgba(0, 212, 170, 0.12);
}

.pricing-card__badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.pricing-card__price {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.pricing-card__price span {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.5;
}

.pricing-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  flex-grow: 1;
}

.pricing-card__features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.pricing-card__features li::before {
  content: '';
  width: 16px;
  height: 16px;
  min-width: 16px;
  border-radius: 50%;
  background: rgba(0, 212, 170, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2300D4AA' stroke-width='3'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.pricing-card .btn {
  width: 100%;
}

/* ===== HOW IT WORKS ===== */
.how-it-works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

.how-it-works__grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.667% + var(--space-4));
  right: calc(16.667% + var(--space-4));
  height: 2px;
  background: linear-gradient(90deg, var(--color-border), var(--color-primary), var(--color-border));
  opacity: 0.4;
}

.step-card {
  text-align: center;
  position: relative;
}

.step-card__number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
}

.step-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.step-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 300px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq__list {
  max-width: 740px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

.faq-item.active {
  border-color: rgba(0, 212, 170, 0.3);
}

.faq-item__question {
  width: 100%;
  text-align: left;
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
}

.faq-item__icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  color: var(--color-text-muted);
  transition: transform 0.3s var(--ease-out);
}

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

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease-out), padding 0.35s var(--ease-out);
}

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

.faq-item__answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== CTA SECTION ===== */
.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-section__inner {
  text-align: center;
  padding: var(--space-16) var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.cta-section__inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.5;
}

.cta-section__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.cta-section__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}

.footer__brand-logo svg {
  width: 28px;
  height: 28px;
}

.footer__brand-logo span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.footer__brand-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 300px;
}

.footer__col-title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
}

.footer__links a:hover {
  color: var(--color-text);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__attribution a {
  color: var(--color-text-muted);
}

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

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .header__nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
  .header__inner { gap: var(--space-3); }
  .header__actions { gap: var(--space-2); }
  .header__actions .btn--sm { padding: var(--space-2) var(--space-3); font-size: var(--text-xs); }

  .hero__title { font-size: var(--text-2xl); }
  .hero__stats { gap: var(--space-6); }
  .hero__stat-divider { display: none; }

  .features__grid { grid-template-columns: 1fr; }
  .samples__grid { grid-template-columns: 1fr; }
  .pricing__grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .how-it-works__grid { grid-template-columns: 1fr; gap: var(--space-10); }
  .how-it-works__grid::before { display: none; }

  .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-4); }
  .hero__ctas { flex-direction: column; width: 100%; }
  .hero__ctas .btn { width: 100%; }
}