/* ============================================================
   TRIDIMEDYA — Design Tokens & Component Styles
   ============================================================ */

/* --- Type Scale (fluid clamp) --- */
:root {
  --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);

  /* Spacing (4px base) */
  --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);
  --ease-in:     cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

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

  /* Font families */
  --font-display: 'Clash Display', 'Arial Black', sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;
}

/* ============================================================
   COLOR THEMES
   ============================================================ */

/* DARK THEME (default) */
:root, [data-theme="dark"] {
  --color-bg:             #111111;
  --color-surface:        #1a1a1a;
  --color-surface-2:      #222222;
  --color-surface-offset: #181818;
  --color-surface-dynamic:#2a2a2a;
  --color-divider:        #2d2d2d;
  --color-border:         #333333;

  --color-text:           #FFFFFF;
  --color-text-muted:     #9CA3AF;
  --color-text-faint:     #6B7280;
  --color-text-inverse:   #111111;

  --color-primary:        #E8501C;
  --color-primary-hover:  #FF6B3A;
  --color-primary-active: #CC4418;
  --color-primary-highlight: rgba(232, 80, 28, 0.15);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
}

/* LIGHT THEME */
[data-theme="light"] {
  --color-bg:             #F7F6F2;
  --color-surface:        #FFFFFF;
  --color-surface-2:      #F3F0EC;
  --color-surface-offset: #EDEAE5;
  --color-surface-dynamic:#E6E4DF;
  --color-divider:        #DCD9D5;
  --color-border:         #D4D1CA;

  --color-text:           #1a1a1a;
  --color-text-muted:     #6B7280;
  --color-text-faint:     #9CA3AF;
  --color-text-inverse:   #FFFFFF;

  --color-primary:        #E8501C;
  --color-primary-hover:  #D04518;
  --color-primary-active: #B53B14;
  --color-primary-highlight: rgba(232, 80, 28, 0.1);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

/* ============================================================
   GLOBAL STYLES
   ============================================================ */

body {
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

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

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

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

.section-padding {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

/* ============================================================
   HEADER / NAV
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  max-width: var(--content-wide);
  margin-inline: auto;
}

@media (min-width: 768px) {
  .header-inner { padding: var(--space-3) var(--space-8); }
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.logo svg {
  height: 40px;
  width: auto;
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

[data-theme="dark"] .logo-img {
  /* Invert for dark backgrounds — replace with dark-version logo when available */
  filter: invert(1) hue-rotate(180deg) brightness(1.1);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
}

.nav-desktop a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-interactive);
  padding: var(--space-2) 0;
}

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

.nav-desktop a.active {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.theme-toggle,
.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

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

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .hamburger { display: none; }
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

.hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: oklch(from var(--color-bg) l c h / 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
}

.mobile-nav.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-16) var(--space-4);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(232, 80, 28, 0.15), transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 70%, rgba(232, 80, 28, 0.08), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(232, 80, 28, 0.05), transparent 40%);
  animation: heroGradientPulse 8s ease-in-out infinite alternate;
}

@keyframes heroGradientPulse {
  0% { opacity: 0.6; }
  100% { opacity: 1; }
}

[data-theme="light"] .hero-gradient {
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(232, 80, 28, 0.1), transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 70%, rgba(232, 80, 28, 0.06), transparent 50%);
}

/* Hero Split Layout */
.hero-split {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  max-width: 1280px;
  width: 100%;
  padding: 0 var(--space-8);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 580px;
  text-align: left;
}

/* Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  background: rgba(232, 80, 28, 0.12);
  border: 1px solid rgba(232, 80, 28, 0.3);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

/* Hero actions row */
.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Ghost button */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: border-color var(--transition-interactive),
              color var(--transition-interactive),
              transform var(--transition-interactive);
  min-height: 48px;
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.hero-model-frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(232, 80, 28, 0.2);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04),
    0 32px 80px rgba(0,0,0,0.5),
    0 0 60px rgba(232, 80, 28, 0.08);
  background: #111;
  animation: heroFloating 6s ease-in-out infinite;
}

@keyframes heroFloating {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-10px); }
}

.hero-model-slides {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.hero-model-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}
.hero-model-img.active {
  opacity: 1;
}

/* Caption bar */
.hero-model-caption {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 16px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.hero-model-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: heroModelBlink 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes heroModelBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.hero-model-label {
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Slide dots */
.hero-model-indicators {
  position: absolute;
  bottom: 44px;
  right: 14px;
  display: flex;
  gap: 6px;
}

.hero-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  padding: 0;
  transition: background 0.3s, transform 0.3s;
}
.hero-dot.active {
  background: var(--color-primary);
  transform: scale(1.4);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
    padding: 0 var(--space-4);
  }
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-visual {
    order: 1;
  }
  .hero-model-frame {
    animation: none; /* Reduce motion on mobile */
    border-radius: 12px;
  }
}

.hero h1 {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 520px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: var(--color-primary);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
  min-height: 48px;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 80, 28, 0.3);
}

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: transparent;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              transform var(--transition-interactive);
  min-height: 48px;
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-indicator-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--color-text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator-mouse::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 2px;
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */

.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

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

/* ============================================================
   ABOUT SECTION
   ============================================================ */

.about-content {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .about-content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  font-size: var(--text-base);
}

.about-text p:last-child { margin-bottom: 0; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.stat-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(232, 80, 28, 0.1);
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: var(--space-6);
}

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

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   FEATURED PROJECT
   ============================================================ */

.featured-section {
  background: var(--color-surface);
}

.featured-embed {
  position: relative;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.embed-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.embed-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.embed-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  background: var(--color-surface-2);
  cursor: pointer;
  transition: background var(--transition-interactive);
}

.embed-placeholder:hover {
  background: var(--color-surface-dynamic);
}

.embed-placeholder .play-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.embed-placeholder:hover .play-icon {
  transform: scale(1.1);
  box-shadow: 0 0 30px rgba(232, 80, 28, 0.4);
}

.embed-placeholder .play-icon svg {
  width: 24px;
  height: 24px;
  fill: #FFFFFF;
  margin-left: 3px;
}

.embed-placeholder span {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================================================
   REFERENCES / PORTFOLIO SECTION
   ============================================================ */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-8);
}

.filter-btn {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-interactive);
  white-space: nowrap;
  min-height: 36px;
}

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

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

.references-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .references-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .references-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.ref-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.ref-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.ref-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.ref-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.3;
}

.ref-card-arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-text-faint);
  transition: color var(--transition-interactive), transform var(--transition-interactive);
}

.ref-card:hover .ref-card-arrow {
  color: var(--color-primary);
  transform: translate(2px, -2px);
}

.ref-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.ref-category {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 500;
}

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

.ref-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-faint);
}

/* Hidden card for filtering */
.ref-card.hidden {
  display: none;
}

/* ============================================================
   WHY TRIDI MEDYA SECTION
   ============================================================ */

.why-grid {
  display: grid;
  /* Always 2 columns on desktop, 1 column on small mobile */
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 600px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
}

.why-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.why-card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.why-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.why-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */

.contact-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}

.contact-item-text h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.contact-item-text p,
.contact-item-text a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.contact-item-text a:hover {
  color: var(--color-primary);
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: #25D366;
  color: #FFFFFF;
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  text-decoration: none;
  margin-top: var(--space-4);
  transition: background var(--transition-interactive), transform var(--transition-interactive);
  min-height: 48px;
}

.whatsapp-btn:hover {
  background: #20BD5A;
  color: #FFFFFF;
  transform: translateY(-2px);
}

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

.contact-form .btn-primary {
  width: 100%;
  justify-content: center;
}

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-10) var(--space-6);
  gap: var(--space-3);
}

.form-success h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-group label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  min-height: 44px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(232, 80, 28, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-12) var(--space-4);
}

.footer-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
    padding-inline: var(--space-8);
  }
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  max-width: 300px;
}

.footer-links h4 {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.footer-links ul {
  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-primary);
}

.footer-bottom {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-top: var(--space-6);
  margin-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

@media (min-width: 768px) {
  .footer-bottom { padding-inline: var(--space-8); }
}

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

.footer-badge-img {
  height: 56px;
  width: auto;
  opacity: 0.9;
  transition: opacity var(--transition-interactive), filter var(--transition-interactive);
  /* No grayscale — keep original badge colors for brand recognition */
  filter: none;
}

.footer-badge-img:hover {
  opacity: 1;
  filter: none;
}

[data-theme="dark"] .footer-badge-img {
  /* Slight brightness boost in dark mode */
  filter: brightness(1.1);
  opacity: 0.9;
}

[data-theme="dark"] .footer-badge-img:hover {
  filter: brightness(1.2);
  opacity: 1;
}

/* ============================================================
   MODAL
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  width: 100%;
  max-width: 1100px;
  position: relative;
  transform: scale(0.95);
  transition: transform 0.3s var(--ease-out);
}

.modal-overlay.is-open .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.modal-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #FFFFFF;
}

.modal-close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  border-radius: var(--radius-md);
  transition: background var(--transition-interactive);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
}

.modal-embed {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
}

.modal-embed .embed-wrapper {
  padding-bottom: 56.25%;
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */

/* Scroll reveal handled by JS IntersectionObserver via .js-reveal class */

/* Fallback for browsers without scroll-driven animations */
.js-reveal {
  opacity: 0;
  transform: translateY(0);
  transition: opacity 0.6s var(--ease-out);
}

.js-reveal.is-visible {
  opacity: 1;
}

/* ============================================================
   UTILITIES
   ============================================================ */

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), #FF8A5C);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.accent-line {
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  margin-bottom: var(--space-4);
}

.accent-line--center {
  margin-inline: auto;
}

/* Grid lines decoration */
.grid-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(var(--color-text) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-text) 1px, transparent 1px);
  background-size: 60px 60px;
}

[data-theme="light"] .grid-decoration {
  opacity: 0.04;
}

/* --- Client Logos Section (Infinite Marquee) --- */
.client-logos-section {
  background: var(--color-surface);
  overflow: hidden;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-100%); }
}

.client-logos-grid {
  display: flex;
  width: 100%;
  overflow: hidden;
  margin-top: var(--space-10);
  /* Fade edges */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
  /* Padding so first card isn't flush against fade */
  padding-block: 4px;
}

.client-logos-grid:hover .logos-track {
  animation-play-state: paused;
}

.logos-track {
  display: flex;
  align-items: center;
  /* Gap between cards */
  gap: 20px;
  /* Right padding at end of track to match gap before duplicate starts */
  padding-right: 20px;
  flex-shrink: 0;
  animation: marquee 90s linear infinite;
  will-change: transform;
}

/* ── Logo Card ── */
.client-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 210px;
  height: 120px;
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
  box-sizing: border-box;
}

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

/* ── Logo Image — fills card proportionally ── */
.client-logo-item img {
  /* Use all available width, let height scale naturally */
  width: 100%;
  height: auto;
  /* Hard cap: never exceed the card's inner height */
  max-width: 162px;   /* card 210px - 24px×2 padding */
  max-height: 80px;   /* card 120px - 20px×2 padding */
  /* object-fit: contain as fallback for browsers treating img as block */
  object-fit: contain;
  filter: grayscale(100%) opacity(0.65);
  transition: filter var(--transition-interactive);
  display: block;
}

.client-logo-item:hover img {
  filter: grayscale(0%) opacity(1);
}

[data-theme="dark"] .client-logo-item img {
  filter: grayscale(100%) opacity(0.5) brightness(1.8);
}

[data-theme="dark"] .client-logo-item:hover img {
  filter: grayscale(0%) opacity(1) brightness(1.1);
}

.client-logo-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  line-height: 1.3;
  padding: var(--space-2);
  max-width: 140px;
}

@media (max-width: 768px) {
  .logos-track {
    animation-duration: 70s;
    gap: 14px;
    padding-right: 14px;
  }
  .client-logo-item {
    width: 160px;
    height: 96px;
    padding: 16px 20px;
  }
  .client-logo-item img {
    max-width: 120px;
    max-height: 64px;
  }
}

/* ── WhatsApp Floating Button ── */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.55);
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
  }
}