/* ===== Design Tokens ===== */
:root {
  --bg:          #fafafa;
  --bg-alt:      #ffffff;
  --bg-surface:  #f3f1f8;
  --bg-subtle:   #eeedf5;

  --text:        #18181b;
  --text-secondary: #52525b;
  --muted:       #a1a1aa;

  --accent:      #6d28d9;
  --accent-light:#8b5cf6;
  --accent-2:    #06b6d4;
  --accent-glow: rgba(109, 40, 217, 0.25);

  --gradient-primary: linear-gradient(135deg, #6d28d9 0%, #06b6d4 100%);
  --gradient-hero:    linear-gradient(135deg, #6d28d9 0%, #db2777 50%, #06b6d4 100%);
  --gradient-mesh:    radial-gradient(ellipse at 20% 50%, rgba(109,40,217,0.08) 0%, transparent 50%),
                      radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.06) 0%, transparent 50%),
                      radial-gradient(ellipse at 50% 80%, rgba(219,39,119,0.05) 0%, transparent 50%);
  --gradient-card-border: linear-gradient(135deg, rgba(109,40,217,0.35), rgba(6,182,212,0.2));
  --gradient-text:   linear-gradient(135deg, #6d28d9 0%, #db2777 50%, #06b6d4 100%);

  --border:      rgba(0, 0, 0, 0.06);
  --border-hover: rgba(0, 0, 0, 0.12);
  --shadow:      0 24px 60px rgba(0, 0, 0, 0.06);
  --shadow-sm:   0 4px 16px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 60px rgba(109, 40, 217, 0.08);

  --radius:      20px;
  --radius-lg:   28px;
  --radius-sm:   12px;

  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration:    0.4s;
  --duration-slow: 0.7s;
}

/* ===== Reset & Base ===== */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration) var(--ease-out);
}

::selection {
  background: var(--accent);
  color: #fff;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 1.5vw, 1.35rem); font-weight: 600; }

/* ===== Grain Overlay ===== */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg width='120' height='120' viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  opacity: 0.4;
  z-index: 1;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 7vw;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  transition: padding var(--duration) var(--ease-out);
}

.site-header.is-scrolled {
  padding-top: 10px;
  padding-bottom: 10px;
  box-shadow: var(--shadow-sm);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Navigation ===== */
.site-nav {
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  transition: color var(--duration) var(--ease-out),
              background var(--duration) var(--ease-out);
}

.nav-link:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.04);
}

.nav-link.is-active {
  color: var(--text);
  background: rgba(0, 0, 0, 0.06);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 101;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

.nav-toggle.is-active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Button ===== */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  background: var(--gradient-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--duration) var(--ease-spring),
              box-shadow var(--duration) var(--ease-out);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.button:hover::before { opacity: 1; }

.button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hover);
  box-shadow: none;
}

.button.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(109, 40, 217, 0.04);
  box-shadow: 0 0 20px rgba(109, 40, 217, 0.08);
}

.nav-link.button { color: #fff; }

/* ===== Main Content ===== */
.site-main { padding: 40px 7vw 80px; position: relative; z-index: 2; }

/* ===== Eyebrow ===== */
.eyebrow {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* ===== Hero ===== */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0 100px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: -100px -7vw;
  background: var(--gradient-mesh);
  z-index: -1;
}

.hero-content h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-content h1 .highlight {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  color: var(--text-secondary);
  max-width: 540px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 32px; }

/* ===== Hero Visual ===== */
.hero-visual {
  position: relative;
  min-height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-mesh {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 30% 30%, rgba(109,40,217,0.25) 0%, transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(6,182,212,0.2) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(219,39,119,0.15) 0%, transparent 40%);
  filter: blur(50px);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0%   { transform: scale(1) rotate(0deg); }
  33%  { transform: scale(1.05) rotate(2deg); }
  66%  { transform: scale(0.98) rotate(-1deg); }
  100% { transform: scale(1.02) rotate(1deg); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  border-radius: var(--radius-lg);
}

/* ===== Metric Cards ===== */
.metric-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  min-width: 180px;
  left: 20px;
  bottom: 30px;
  transition: transform var(--duration) var(--ease-spring);
}

.metric-card:hover { transform: translateY(-4px); }

.metric-card:nth-child(4) {
  left: auto;
  right: 20px;
  bottom: 100px;
}

.metric-value {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  font-family: 'Space Grotesk', sans-serif;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* ===== Sticky Flow (Left fixed, Right scrolls) ===== */
.sticky-flow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding: 80px 0;
}

.sticky-flow-left {
  position: sticky;
  top: 120px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sticky-flow-left .section-head { margin-bottom: 0; }

.sticky-flow-right {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sticky-flow-item {
  padding: 40px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: var(--radius);
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
  transition: transform var(--duration) var(--ease-spring),
              box-shadow var(--duration) var(--ease-out);
}

.sticky-flow-item::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--gradient-card-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
}

.sticky-flow-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow), var(--shadow-glow);
}

.sticky-flow-item:hover::before { opacity: 1; }

.sticky-flow-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.sticky-flow-num {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  display: block;
}

.sticky-flow-item h3 {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  margin-bottom: 8px;
}

.sticky-flow-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== Sections ===== */
.section { padding: 80px 0; }

.section.bg {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 60px;
  border: 1px solid var(--border);
}

.section-head { margin-bottom: 40px; }
.section-head h2 { margin-bottom: 8px; }
.section-head p { color: var(--text-secondary); max-width: 600px; }

/* ===== Grid ===== */
.grid { display: grid; gap: 24px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ===== Bento Grid ===== */
.bento {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
}

.bento > .card:first-child { grid-column: 1 / 3; }

/* ===== Bento Service Grid ===== */
.bento-service {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(180px, auto);
}

.bento-service > .card:first-child { grid-row: 1 / 3; }
.bento-service > .card:nth-child(4) { grid-column: 2 / 4; }

/* ===== Cards ===== */
.card {
  background: var(--bg-alt);
  padding: 28px;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: transform var(--duration) var(--ease-spring),
              box-shadow var(--duration) var(--ease-out);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--gradient-card-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
}

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

.card:hover::before { opacity: 1; }

.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; }

/* ===== Service Cards ===== */
.service-card { padding-top: 72px; display: flex; flex-direction: column; }

.service-icon {
  position: absolute;
  top: 24px;
  left: 28px;
  width: 40px;
  height: 40px;
  object-fit: contain;
}

/* ===== Blog Cards ===== */
.blog-card { display: flex; flex-direction: column; }

.blog-card .tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(109, 40, 217, 0.08);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 12px;
  width: fit-content;
}

.text-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 12px;
  transition: gap var(--duration) var(--ease-out),
              color var(--duration) var(--ease-out);
}

.text-link::after {
  content: '\2192';
  transition: transform var(--duration) var(--ease-out);
}

.text-link:hover {
  color: var(--accent-2);
  gap: 10px;
}

.text-link:hover::after { transform: translateX(4px); }

/* ===== Timeline ===== */
.timeline {
  display: grid;
  gap: 0;
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.timeline-item {
  display: grid;
  gap: 6px;
  padding: 24px 24px 24px 32px;
  background: rgba(109, 40, 217, 0.03);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  position: relative;
  transition: background var(--duration) var(--ease-out);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-surface);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-item:hover { background: rgba(109, 40, 217, 0.06); }

.step {
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

/* ===== Page Hero (subpages) ===== */
.page-hero {
  padding: 60px 0 30px;
  position: relative;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -40px;
  left: -7vw;
  right: -7vw;
  height: 300px;
  background: var(--gradient-mesh);
  z-index: -1;
  opacity: 0.7;
}

.page-hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
}

/* ===== Forms ===== */
.form { display: grid; gap: 20px; max-width: 640px; }
.form.inline { max-width: 520px; }

.form label {
  display: grid;
  gap: 8px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form input, .form textarea, .form select {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.form input:focus, .form textarea:focus, .form select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.1);
}

.form input::placeholder, .form textarea::placeholder { color: var(--muted); }

.error { color: #dc2626; font-size: 0.85rem; }

/* ===== Confirm ===== */
.confirm dl {
  background: var(--bg-alt);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.confirm dl div {
  display: grid;
  grid-template-columns: 120px 1fr;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.confirm dl div:last-child { border-bottom: none; }
.confirm dt { color: var(--text-secondary); font-size: 0.85rem; }
.confirm dd { color: var(--text); margin: 0; }
.confirm-actions { margin-top: 20px; display: flex; gap: 12px; }

/* ===== Pagination ===== */
.pagination {
  display: flex;
  gap: 8px;
  margin-top: 40px;
  justify-content: center;
}

.page-link {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--duration) var(--ease-out);
}

.page-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.page-link.is-active {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
}

/* ===== Blog Body ===== */
.blog-body { max-width: 820px; margin: 0 auto; }

.blog-body .meta {
  display: flex;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
  align-items: center;
}

.blog-body .meta span:first-child {
  padding: 4px 12px;
  background: rgba(109, 40, 217, 0.08);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.8rem;
}

.blog-body .content {
  background: var(--bg-alt);
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  line-height: 1.9;
}

/* ===== About ===== */
.about-card {
  background: var(--bg-alt);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
}

.list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.list li strong {
  color: var(--text);
  display: inline-block;
  min-width: 100px;
}

/* ===== Flow (Service Page) ===== */
.flow {
  display: grid;
  gap: 0;
  padding-left: 0;
  list-style: none;
  counter-reset: flow-counter;
}

.flow li {
  counter-increment: flow-counter;
  padding: 20px 24px 20px 64px;
  position: relative;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration) var(--ease-out);
}

.flow li::before {
  content: counter(flow-counter, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 20px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
}

.flow li:hover { background: rgba(109, 40, 217, 0.03); }

/* ===== CTA ===== */
.cta {
  text-align: center;
  padding: 80px 60px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  background: var(--bg-surface);
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  opacity: 0.06;
  z-index: 0;
}

.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1.5px;
  background: var(--gradient-hero);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

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

.cta h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 12px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta p { color: var(--text-secondary); margin-bottom: 24px; }

/* ===== Footer ===== */
.site-footer {
  background: #18181b;
  color: #f4f4f5;
  padding: 60px 7vw 30px;
  margin-top: 40px;
}

.footer-inner {
  display: grid;
  gap: 40px;
  grid-template-columns: 1.5fr 1fr 1fr;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 24px;
}

.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tag { color: rgba(255,255,255,0.5); font-size: 0.9rem; line-height: 1.6; }
.footer-info { color: rgba(255,255,255,0.5); font-size: 0.85rem; line-height: 1.8; }

.footer-links a {
  color: rgba(255,255,255,0.6);
  display: block;
  margin-bottom: 10px;
  font-size: 0.9rem;
  transition: color var(--duration) var(--ease-out);
}

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

.copyright { color: rgba(255,255,255,0.3); font-size: 0.8rem; text-align: center; }

/* ===== Animations ===== */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal] .card.is-visible,
[data-reveal] .timeline-item.is-visible,
[data-reveal] .flow li.is-visible,
[data-reveal] .blog-card.is-visible {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* ===== Responsive: Tablet ===== */
@media (max-width: 820px) {
  .site-header { padding: 14px 5vw; }

  .site-nav {
    position: fixed;
    inset: 0;
    background: rgba(250, 250, 250, 0.98);
    backdrop-filter: blur(20px);
    padding: 100px 7vw 40px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out);
    z-index: 99;
  }

  .site-nav.is-open { transform: translateX(0); }

  .site-nav .nav-link {
    font-size: 1.3rem;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }

  .nav-toggle { display: block; }

  .hero {
    grid-template-columns: 1fr;
    padding: 40px 0 60px;
    gap: 40px;
  }

  .hero-content h1 { font-size: clamp(2rem, 6vw, 2.8rem); }
  .hero-visual { min-height: 280px; }
  .metric-card:nth-child(4) { display: none; }

  .section.bg { padding: 40px 24px; border-radius: var(--radius); }
  .site-main { padding: 24px 5vw 60px; }

  .bento,
  .bento-service,
  .grid.two,
  .grid.three { grid-template-columns: 1fr; }

  .bento > .card:first-child,
  .bento-service > .card:first-child,
  .bento-service > .card:nth-child(4) {
    grid-column: auto;
    grid-row: auto;
  }

  .sticky-flow {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 60px 0;
  }
  .sticky-flow-left {
    position: relative;
    top: auto;
  }
  .sticky-flow-item {
    padding: 28px;
  }

  .cta { padding: 50px 24px; border-radius: var(--radius); }

  .footer-inner { grid-template-columns: 1fr; gap: 30px; }

  .timeline { padding-left: 30px; }

  .page-hero { padding: 40px 0 20px; }
}

/* ===== Responsive: Mobile ===== */
@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.8rem; }

  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; justify-content: center; }

  .section.bg { padding: 30px 16px; }
  .card { padding: 20px; }
  .service-card { padding-top: 64px; }
  .service-card .service-icon { top: 18px; left: 20px; width: 36px; height: 36px; }
}