/* ============================================
   Elevator Digital — Holding Company Website
   ============================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f8f8fa;
  --color-text: #1a1a2e;
  --color-text-muted: #6b7280;
  --color-accent: #7c3aed;
  --color-accent-hover: #6d28d9;
  --color-accent-light: #f3f0ff;
  --color-border: #e5e7eb;
  --font-main: 'DM Sans', sans-serif;
  --max-width: 1200px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

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

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

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ---- Section Spacing ---- */
.section {
  padding: 120px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-title {
  margin-bottom: 20px;
}

.section-subtitle {
  max-width: 600px;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 60px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              background 0.3s ease,
              border-color 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #9333ea);
  color: #fff;
  box-shadow: 0 2px 12px rgba(124, 58, 237, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-accent-hover), #7e22ce);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(124, 58, 237, 0.35);
}

.btn svg {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.btn:hover svg {
  transform: translateX(4px);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: none;
  z-index: 1000;
  transition: background 0.3s, backdrop-filter 0.3s, border-bottom 0.3s;
}

.header.scrolled {
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header.menu-open {
  background: #ffffff;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid var(--color-border);
}

.header.menu-open .hamburger span {
  background: var(--color-text);
}

.header.menu-open .logo-long {
  filter: brightness(0);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-long {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.logo-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.logo-icon-footer {
  filter: brightness(0) invert(1);
}

.logo span {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.25s ease;
}

.nav-links a:hover {
  color: #ffffff;
}

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

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: #ffffff;
  padding: 40px 24px;
  z-index: 999;
  border-top: 1px solid var(--color-border);
}

.mobile-menu.active {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.25s ease;
}

.mobile-menu a:hover {
  color: var(--color-accent);
}

.mobile-menu .btn {
  width: fit-content;
  margin-top: 16px;
  color: #ffffff;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding-top: calc(var(--header-height) + 80px);
  padding-bottom: 100px;
  text-align: center;
  background: linear-gradient(160deg, #0a0a0f 0%, #111118 20%, #1a1a2e 40%, #1e1535 60%, #2d1b69 100%);
  position: relative;
  overflow: hidden;
  color: #ffffff;
}

/* Dot-grid overlay */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(124, 58, 237, 0.18) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

/* Animated gradient orbs */
.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero-gradient-orb--1 {
  width: 500px;
  height: 500px;
  top: -10%;
  right: -8%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 70%);
  animation: orbFloat1 8s ease-in-out infinite;
}

.hero-gradient-orb--2 {
  width: 400px;
  height: 400px;
  bottom: -5%;
  left: -10%;
  background: radial-gradient(circle, rgba(147, 51, 234, 0.15) 0%, transparent 70%);
  animation: orbFloat2 10s ease-in-out infinite;
}

.hero-gradient-orb--3 {
  width: 300px;
  height: 300px;
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(167, 139, 250, 0.1) 0%, transparent 70%);
  animation: orbFloat3 12s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-30px, 20px) scale(1.05); }
  66% { transform: translate(20px, -15px) scale(0.95); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(25px, -20px) scale(1.08); }
  66% { transform: translate(-15px, 25px) scale(0.92); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translateX(-50%) translate(0, 0) scale(1); }
  50% { transform: translateX(-50%) translate(0, -30px) scale(1.1); }
}

.hero-fade-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, #0a0a0f);
  pointer-events: none;
  z-index: 1;
}

.hero h1 {
  color: #ffffff;
  margin-bottom: 24px;
  position: relative;
  z-index: 2;
}

.hero p {
  color: rgba(255, 255, 255, 0.65);
  max-width: 580px;
  margin: 0 auto 40px;
  font-size: 1.15rem;
  position: relative;
  z-index: 2;
}

.hero .section-label {
  color: #a78bfa;
  background: rgba(124, 58, 237, 0.15);
  border-color: rgba(124, 58, 237, 0.25);
  position: relative;
  z-index: 2;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(124, 58, 237, 0.15);
}

.hero .btn {
  margin-bottom: 80px;
  position: relative;
  z-index: 2;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.stat-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 32px 20px;
  text-align: center;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.35s ease,
              background 0.35s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.15);
  border-color: rgba(124, 58, 237, 0.4);
  background: rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
}

/* ============================================
   MARQUEE
   ============================================ */
.marquee-strip {
  background: #0a0a0f;
  border-top: 1px solid rgba(124, 58, 237, 0.15);
  border-bottom: 1px solid rgba(124, 58, 237, 0.15);
  padding: 18px 0;
  overflow: hidden;
  position: relative;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}

.marquee-item {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  padding: 0 24px;
  transition: color 0.3s;
}

.marquee-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  opacity: 0.5;
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  background: #ffffff;
  position: relative;
  overflow: hidden;
}

/* Crosshatch pattern on the right side */
.about-pattern {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 40%;
  background-image:
    linear-gradient(45deg, transparent 48%, rgba(124, 58, 237, 0.03) 48%, rgba(124, 58, 237, 0.03) 52%, transparent 52%),
    linear-gradient(-45deg, transparent 48%, rgba(124, 58, 237, 0.03) 48%, rgba(124, 58, 237, 0.03) 52%, transparent 52%);
  background-size: 20px 20px;
  pointer-events: none;
  mask-image: linear-gradient(to left, rgba(0,0,0,0.6), transparent);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.6), transparent);
}

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

.about-content .section-title {
  margin-bottom: 28px;
}

.about-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

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

/* Visual card on the right */
.about-visual-card {
  background: linear-gradient(160deg, #0a0a0f 0%, #1a1a2e 50%, #2d1b69 100%);
  border-radius: 20px;
  padding: 48px 36px;
  position: relative;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.about-visual-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 64px rgba(124, 58, 237, 0.2);
}

.about-visual-card__accent {
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.3), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.about-visual-card__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.about-metric {
  text-align: center;
}

.about-metric__number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #a78bfa, #c4b5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  line-height: 1.1;
}

.about-metric__label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  font-weight: 500;
  line-height: 1.4;
}

/* ============================================
   EXPERTISE — BENTO GRID
   ============================================ */
.expertise-section {
  background: var(--color-bg-alt);
  position: relative;
  overflow: hidden;
}

/* Subtle noise overlay */
.expertise-noise {
  position: absolute;
  inset: 0;
  opacity: 0.4;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
  position: relative;
  z-index: 1;
}

/* First two cards span 2 columns each (featured) */
.bento-card--featured {
  grid-column: span 2;
}

/* All other cards span 1 column (4 cards in bottom row) */
.bento-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 0;
  position: relative;
  overflow: hidden;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.35s ease;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.bento-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(124, 58, 237, 0.12);
}

.bento-card__inner {
  padding: 36px 28px;
  position: relative;
  z-index: 1;
}

.bento-card__tag {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 12px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 20px;
}

/* Featured card pattern decoration */
.bento-card--featured .bento-card__pattern {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 40%;
  background-image: radial-gradient(circle, rgba(124, 58, 237, 0.06) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
  pointer-events: none;
  mask-image: linear-gradient(to left, rgba(0,0,0,0.5), transparent);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.5), transparent);
}

.expertise-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-accent-light), #ede9fe);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background 0.35s ease;
}

.bento-card:hover .expertise-icon {
  transform: scale(1.1) translateY(-2px);
  background: linear-gradient(135deg, #ede9fe, #ddd6fe);
}

.bento-card h3 {
  margin-bottom: 10px;
  color: var(--color-text);
}

.bento-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================
   APPROACH — TIMELINE
   ============================================ */
.approach {
  background: linear-gradient(180deg, #f8f7ff 0%, var(--color-bg-alt) 100%);
  position: relative;
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* Vertical connecting line */
.timeline-line {
  display: none;
}

.timeline-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 0;
  position: relative;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.35s ease;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.timeline-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(124, 58, 237, 0.12);
}

.timeline-card:hover .timeline-node__dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 6px rgba(124, 58, 237, 0.15);
}

.timeline-node {
  position: absolute;
  top: 32px;
  left: 28px;
}

.timeline-node__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.1);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.timeline-card__content {
  padding: 24px 28px 32px 52px;
}

.approach-number {
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ddd6fe, #ede9fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.04em;
}

.timeline-card h3 {
  margin-bottom: 10px;
  color: var(--color-text);
}

.timeline-card p {
  font-size: 0.93rem;
  line-height: 1.6;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  text-align: center;
  background: linear-gradient(180deg, #ffffff 0%, #f3f0ff 30%, #ede9fe 60%, #e4d9fc 100%);
  position: relative;
  overflow: hidden;
}

/* Animated gradient orbs */
.contact-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.contact-orb--1 {
  width: 400px;
  height: 400px;
  top: -10%;
  right: -5%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.2) 0%, transparent 70%);
  animation: contactOrb1 9s ease-in-out infinite;
}

.contact-orb--2 {
  width: 350px;
  height: 350px;
  bottom: -15%;
  left: -8%;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.2) 0%, transparent 70%);
  animation: contactOrb2 11s ease-in-out infinite;
}

.contact-orb--3 {
  width: 250px;
  height: 250px;
  top: 40%;
  left: 40%;
  background: radial-gradient(circle, rgba(196, 181, 253, 0.15) 0%, transparent 70%);
  animation: contactOrb3 7s ease-in-out infinite;
}

@keyframes contactOrb1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-40px, 30px) scale(1.1); }
}

@keyframes contactOrb2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -25px) scale(1.05); }
}

@keyframes contactOrb3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -20px) scale(1.15); }
  66% { transform: translate(-15px, 15px) scale(0.9); }
}

.contact .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.contact .container {
  position: relative;
  z-index: 1;
}

.contact-email {
  display: inline-block;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 8px;
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-email:hover {
  opacity: 0.8;
  transform: translateY(-1px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: linear-gradient(160deg, #1a1a2e 0%, #16132b 50%, #1e1a3a 100%);
  color: #fff;
  padding: 60px 0 40px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s ease;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom a {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
}

.fade-up.visible {
  animation: fadeUpReveal 0.7s ease forwards;
}

@keyframes fadeUpReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stagger children */
.stagger-children .fade-up:nth-child(1) { animation-delay: 0s; }
.stagger-children .fade-up:nth-child(2) { animation-delay: 0.1s; }
.stagger-children .fade-up:nth-child(3) { animation-delay: 0.15s; }
.stagger-children .fade-up:nth-child(4) { animation-delay: 0.2s; }
.stagger-children .fade-up:nth-child(5) { animation-delay: 0.25s; }
.stagger-children .fade-up:nth-child(6) { animation-delay: 0.3s; }

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

  .bento-card--featured {
    grid-column: span 1;
  }

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

  .about-layout {
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .hero {
    padding-top: calc(var(--header-height) + 48px);
    padding-bottom: 60px;
  }

  .nav-links,
  .nav-actions .btn-outline {
    display: none;
  }

  .hamburger {
    display: flex;
  }

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

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

  .about-pattern {
    display: none;
  }

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

  .bento-card--featured {
    grid-column: span 1;
  }

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

  .footer-inner {
    flex-direction: column;
    gap: 40px;
  }

  .footer-links {
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .marquee-strip {
    padding: 14px 0;
  }

  .marquee-item {
    font-size: 0.75rem;
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 24px 16px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

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

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

  .about-visual-card {
    padding: 32px 24px;
  }

  .about-metric__number {
    font-size: 2rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 24px;
  }
}