/* =============================================
   TECHSTRONG GROUP — AI ERA MODERN REDESIGN
   Bright, light, clean, corporate tech media
   ============================================= */

/* --- 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;

  /* Fonts */
  --font-display: 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --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-max: 1400px;
  --content-full: 100%;
}

/* --- LIGHT MODE (default) --- */
:root, [data-theme="light"] {
  --color-bg: #FAFBFC;
  --color-surface: #FFFFFF;
  --color-surface-2: #F4F6F9;
  --color-surface-offset: #EEF1F5;
  --color-surface-accent: #E8F4F8;
  --color-divider: #E2E6EB;
  --color-border: #D1D6DD;

  --color-text: #0F1720;
  --color-text-muted: #5A6578;
  --color-text-faint: #94A0B4;

  --color-primary: #0891B2;
  --color-primary-hover: #0E7490;
  --color-primary-active: #155E75;
  --color-primary-light: #CFFAFE;

  --color-accent: #0D9488;
  --color-accent-hover: #0F766E;

  --color-signal: #F43F5E;
  --color-signal-light: #FFF1F2;

  --shadow-sm: 0 1px 3px rgba(15, 23, 32, 0.04), 0 1px 2px rgba(15, 23, 32, 0.03);
  --shadow-md: 0 4px 16px rgba(15, 23, 32, 0.06), 0 2px 4px rgba(15, 23, 32, 0.03);
  --shadow-lg: 0 12px 40px rgba(15, 23, 32, 0.08), 0 4px 12px rgba(15, 23, 32, 0.04);
  --shadow-xl: 0 24px 64px rgba(15, 23, 32, 0.1), 0 8px 24px rgba(15, 23, 32, 0.05);
}

/* --- DARK MODE --- */
[data-theme="dark"] {
  --color-bg: #0B1120;
  --color-surface: #111827;
  --color-surface-2: #1A2332;
  --color-surface-offset: #1E293B;
  --color-surface-accent: #0D2A3A;
  --color-divider: #1E293B;
  --color-border: #334155;

  --color-text: #E2E8F0;
  --color-text-muted: #94A3B8;
  --color-text-faint: #64748B;

  --color-primary: #22D3EE;
  --color-primary-hover: #67E8F9;
  --color-primary-active: #06B6D4;
  --color-primary-light: #083344;

  --color-accent: #2DD4BF;
  --color-accent-hover: #5EEAD4;

  --color-signal: #FB7185;
  --color-signal-light: #1C1015;

  --shadow-sm: 0 1px 3px 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-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0B1120;
    --color-surface: #111827;
    --color-surface-2: #1A2332;
    --color-surface-offset: #1E293B;
    --color-surface-accent: #0D2A3A;
    --color-divider: #1E293B;
    --color-border: #334155;
    --color-text: #E2E8F0;
    --color-text-muted: #94A3B8;
    --color-text-faint: #64748B;
    --color-primary: #22D3EE;
    --color-primary-hover: #67E8F9;
    --color-primary-active: #06B6D4;
    --color-primary-light: #083344;
    --color-accent: #2DD4BF;
    --color-accent-hover: #5EEAD4;
    --color-signal: #FB7185;
    --color-signal-light: #1C1015;
    --shadow-sm: 0 1px 3px 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-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
  }
}

/* --- UTILITY --- */
.container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}
@media (min-width: 1200px) {
  .container { padding-inline: var(--space-12); }
}

/* --- HEADER / NAV --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow 0.3s var(--ease-out);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
@media (min-width: 768px) {
  .header-inner { padding-inline: var(--space-8); }
}
@media (min-width: 1200px) {
  .header-inner { padding-inline: var(--space-12); }
}

.logo-area {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.logo-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.logo-text span {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  display: block;
  letter-spacing: 0;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-8);
}
@media (min-width: 960px) {
  .nav-desktop { display: flex; }
}
.nav-desktop a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.nav-desktop a:hover {
  color: var(--color-text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.theme-toggle:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.btn-contact {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.btn-contact:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-contact:active {
  transform: translateY(0);
}
@media (min-width: 960px) {
  .btn-contact { display: flex; }
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
@media (min-width: 960px) {
  .menu-toggle { display: none; }
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: calc(72px + var(--space-8)) var(--space-6) var(--space-8);
  flex-direction: column;
  gap: var(--space-4);
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
}

/* --- HERO --- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0 clamp(var(--space-12), 8vw, var(--space-24));
  min-height: 85vh;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero-bg::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 80%;
  height: 120%;
  background: radial-gradient(ellipse at center, oklch(0.85 0.08 195 / 0.2), transparent 70%);
  filter: blur(80px);
}
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, oklch(0.88 0.06 170 / 0.12), transparent 70%);
  filter: blur(60px);
}
/* Hero canvas */
.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4) var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}
.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: 1.05;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--color-border);
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}
.btn-secondary:hover {
  background: var(--color-surface-2);
  border-color: var(--color-text-faint);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:active { transform: translateY(0); }

/* --- BRANDS BAR --- */
.brands-bar {
  padding: var(--space-10) 0 var(--space-12);
  border-bottom: 1px solid var(--color-divider);
}
.brands-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  text-align: center;
  margin-bottom: var(--space-8);
}
.brands-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-5) var(--space-8);
  max-width: 1000px;
  margin-inline: auto;
}
.brand-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  transition: color var(--transition-interactive);
}
.brand-item:hover { color: var(--color-text); }
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

/* --- SECTION COMMON --- */
.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}
.section-alt {
  background: var(--color-surface-2);
}
.section-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section-desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.65;
}

/* --- METRICS --- */
.metrics-section {
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-bg));
  position: relative;
  overflow: hidden;
}
.metrics-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 1px 1px, var(--color-border) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 0.4;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  position: relative;
  z-index: 1;
}
@media (min-width: 768px) {
  .metrics-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .metrics-grid { grid-template-columns: repeat(5, 1fr); }
}
.metric-card {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.metric-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.metric-label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
  line-height: 1.4;
}

/* --- PIPELINE --- */
.pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.pipeline-step {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}
.pipeline-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pipeline-arrow {
  display: flex;
  align-items: center;
}
@media (max-width: 480px) {
  .pipeline-arrow { transform: rotate(90deg); }
}

/* --- SERVICES --- */
.services-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-10);
}
@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.service-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-interactive);
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}
.service-card:hover::before {
  opacity: 1;
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-surface-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --- AUDIENCE --- */
.audience-layout {
  display: grid;
  gap: var(--space-10);
  align-items: center;
  margin-top: var(--space-10);
}
@media (min-width: 960px) {
  .audience-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}
.audience-stat-list {
  display: grid;
  gap: var(--space-4);
}
.audience-stat {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
}
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  min-width: 72px;
  font-variant-numeric: tabular-nums;
}
.stat-detail h4 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.stat-detail p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* --- INTENT SECTION --- */
.intent-section {
  background: linear-gradient(135deg,
    var(--color-surface-accent),
    var(--color-surface-2)
  );
  position: relative;
}
.intent-grid {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-10);
}
@media (min-width: 768px) {
  .intent-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.intent-card {
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  text-align: center;
}
.intent-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.intent-label {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.intent-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* --- TRUST LOGOS --- */
.trust-section {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.trust-headline {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--space-2);
}
.trust-sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: var(--space-10);
}
.trust-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8) var(--space-10);
  opacity: 0.55;
  transition: opacity 0.5s ease;
}
.trust-grid:hover { opacity: 0.8; }
.trust-logo {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

/* --- ABOUT / MISSION --- */
.about-layout {
  display: grid;
  gap: var(--space-10);
  align-items: center;
  margin-top: var(--space-10);
}
@media (min-width: 960px) {
  .about-layout {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-16);
  }
}
.about-visual {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-surface-accent), var(--color-surface-2));
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-visual-inner {
  padding: var(--space-8);
  text-align: center;
}
.about-visual-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  color: var(--color-primary);
}
.about-visual-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.about-text h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.about-text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.about-text p:last-child { margin-bottom: 0; }

/* --- TESTIMONIALS --- */
.testimonials-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-10);
}
@media (min-width: 768px) {
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1200px) {
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}
.testimonial-card {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  display: flex;
  flex-direction: column;
}
.testimonial-quote {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.65;
  flex: 1;
  font-style: italic;
  margin-bottom: var(--space-5);
}
.testimonial-quote::before {
  content: '\201C';
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  line-height: 0;
  display: block;
  margin-bottom: var(--space-2);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}
.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-surface-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  flex-shrink: 0;
}
.author-info strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}
.author-info span {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* --- CTA SECTION --- */
.cta-section {
  background: linear-gradient(135deg,
    var(--color-primary),
    var(--color-accent)
  );
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.08), transparent 70%);
}
.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin-inline: auto;
}
.cta-content h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}
.cta-content p {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-8);
  max-width: 100%;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  background: #FFFFFF;
  color: var(--color-primary-active);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}
.btn-cta:active { transform: translateY(0); }

/* --- FOOTER --- */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-16) 0 var(--space-8);
}
.footer-grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
  }
}
.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: var(--space-4);
  max-width: 320px;
}
.footer-heading {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-links a:hover { color: var(--color-text); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.footer-bottom p,
.footer-bottom a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-bottom a {
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-bottom a:hover { color: var(--color-text-muted); }
.footer-social {
  display: flex;
  gap: var(--space-3);
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.footer-social a:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* --- SCROLL ANIMATIONS --- */
.fade-in { opacity: 1; }

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}
@keyframes reveal-fade { to { opacity: 1; } }

/* --- COUNTER ANIMATION --- */
.counter[data-target] {
  font-variant-numeric: tabular-nums;
}

/* --- RESPONSIVE FINE-TUNING --- */
@media (max-width: 767px) {
  .hero h1 { font-size: var(--text-2xl); }
  .section-title { font-size: var(--text-xl); }
  .intent-value { font-size: var(--text-2xl); }
  .metric-value { font-size: var(--text-xl); }
}