/* ==========================================================================
   ZEM LABS — Design System
   Premium technology studio · Dark · Minimal · Typography-first
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --bg: #05070d;
  --bg-soft: #0a0d16;
  --surface: #0e1322;
  --surface-2: #141b30;
  --line: rgba(148, 163, 220, 0.1);
  --line-strong: rgba(148, 163, 220, 0.18);

  --text: #f2f5fb;
  --text-muted: #97a1c0;
  --text-faint: #5b6584;

  --accent: #3b82f6;
  --accent-2: #60a5fa;
  --accent-grad: linear-gradient(120deg, #2563eb 0%, #60a5fa 55%, #38bdf8 100%);
  --accent-soft: rgba(59, 130, 246, 0.14);
  --accent-glow: rgba(59, 130, 246, 0.45);

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --header-h: 72px;
  --maxw: 1200px;
  --space-section: clamp(80px, 10vw, 128px);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* Golden-ratio inspired fluid type scale */
  --step-h1: clamp(2.7rem, 6.8vw, 4.85rem);
  --step-h2: clamp(1.95rem, 4.6vw, 3.1rem);
  --step-h3: clamp(1.3rem, 2.7vw, 1.72rem);
  --step-h4: 1.06rem;
  --step-lead: clamp(1.1rem, 1.8vw, 1.38rem);
  --step-small: 0.86rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(1100px 700px at 82% -8%, rgba(37, 99, 235, 0.1), transparent 60%),
    radial-gradient(900px 600px at 0% 0%, rgba(56, 189, 248, 0.06), transparent 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

::selection {
  background: var(--accent);
  color: #070b16;
}

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  font-size: var(--step-h1);
  line-height: 1.04;
}

h2 {
  font-size: var(--step-h2);
  line-height: 1.08;
}

h3 {
  font-size: var(--step-h3);
  line-height: 1.16;
}

h4 {
  font-size: var(--step-h4);
}

p {
  color: var(--text-muted);
}

.lead {
  font-size: var(--step-lead);
  color: var(--text-muted);
  max-width: 62ch;
  line-height: 1.6;
}

.grad-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

.section {
  padding-block: var(--space-section);
  position: relative;
}

main > section:last-of-type {
  padding-bottom: clamp(56px, 7vw, 88px);
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(40px, 6vw, 72px);
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.section-head .eyebrow {
  margin-bottom: 18px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
}

.section-head.center .eyebrow::before {
  display: none;
}

.section-head p {
  margin-top: 16px;
}

/* ---------- Backgrounds ---------- */
.bg-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
}

.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.glow-blue {
  background: rgba(59, 130, 246, 0.22);
}

.glow-sky {
  background: rgba(56, 189, 248, 0.16);
}

/* ---------- Animated gradients & glass ---------- */
.grad-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
  animation: blobDrift 16s ease-in-out infinite;
  will-change: transform;
}

@keyframes blobDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -24px) scale(1.08); }
}

.animate-aurora {
  animation: aurora 14s ease-in-out infinite;
  background-size: 200% 200%;
}

@keyframes aurora {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.glass {
  background: rgba(20, 27, 48, 0.42);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(148, 163, 220, 0.14);
}

/* ---------- Black-hole & particle canvases ---------- */
.bh-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(80% 60% at 70% 40%, transparent 0%, rgba(5, 7, 13, 0.35) 70%, var(--bg) 100%),
    linear-gradient(180deg, rgba(5, 7, 13, 0.55) 0%, transparent 34% 70%, var(--bg) 100%);
}

.particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* Tornado / vortex hero canvas — sits on the left, rises from the base */
#tornado {
  top: auto;
  right: auto;
  left: 0;
  bottom: 0;
  width: min(620px, 58vw);
  height: min(80vh, 720px);
  opacity: 0.85;
}

@media (max-width: 900px) {
  #tornado {
    width: min(460px, 72vw);
    height: 62vh;
    opacity: 0.55;
  }
}

@media (max-width: 560px) {
  #tornado {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  #tornado {
    opacity: 0.35;
  }
}

[data-particles] > *:not(.particles-canvas) {
  position: relative;
  z-index: 1;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease), color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.btn:active {
  transform: translateY(0) scale(0.97);
}

.btn-primary {
  background: var(--accent-grad);
  background-size: 160% 160%;
  color: #0a1128;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.015);
  box-shadow: 0 12px 36px rgba(59, 130, 246, 0.45);
  background-position: 100% 50%;
}

@keyframes btnGradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.btn-primary {
  animation: btnGradShift 9s ease-in-out infinite;
}

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

.btn-ghost::after {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: var(--accent-soft);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.btn-ghost:hover {
  border-color: rgba(96, 165, 250, 0.55);
  color: var(--accent-2);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.18);
}

.btn-ghost:hover::after {
  opacity: 1;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 18px 34px;
  font-size: 1rem;
}

.btn .arrow {
  transition: transform 0.3s var(--ease);
}

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

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(180deg, var(--surface) 0%, rgba(10, 13, 22, 0.6) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease), box-shadow 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(500px 220px at var(--x, 50%) 0%, var(--accent-soft) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(96, 165, 250, 0.3);
  box-shadow: 0 18px 44px rgba(2, 6, 23, 0.55);
}

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

/* 3D tilt — applied to selective cards via JS */
.card.tilt {
  will-change: transform;
  transform-style: preserve-3d;
}

.card.tilt .tilt-inner {
  transform: translateZ(14px);
  position: relative;
}

.card.tilt .card-icon,
.card.tilt h3,
.card.tilt .card-link {
  transform: translateZ(22px);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--accent);
  margin-bottom: 22px;
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin-bottom: 10px;
}

.card p {
  font-size: 0.95rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  transition: color 0.3s;
}

.card-link svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

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

.card-link:hover svg {
  transform: translateX(3px);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), backdrop-filter 0.4s;
}

.site-header.scrolled {
  background: rgba(8, 9, 12, 0.78);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  margin-right: auto;
  flex-shrink: 0;
}

.brand-logo {
  display: block;
  height: 42px;
  width: auto;
  padding: 7px 14px;
  box-sizing: content-box;
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  object-fit: contain;
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.brand:hover .brand-logo {
  box-shadow: 0 8px 28px rgba(59, 130, 246, 0.25);
  transform: translateY(-1px);
}

.brand-logo-footer {
  height: 40px;
  box-shadow: none;
  border-color: rgba(255, 255, 255, 0.08);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  transition: color 0.3s;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

.header-cta {
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 120;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: rgba(8, 9, 12, 0.97);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 96px 32px 48px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-menu nav a {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), color 0.3s;
}

.mobile-menu.open nav a {
  opacity: 1;
  transform: translateY(0);
}

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

.mobile-menu .menu-cta {
  margin-top: 32px;
  text-align: center;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  margin-bottom: 24px;
  max-width: 15ch;
}

.hero .lead {
  max-width: 54ch;
  margin-bottom: 40px;
}

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

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin-top: 56px;
  color: var(--text-faint);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.hero-meta span::before {
  content: "\25C6";
  color: var(--accent);
  margin-right: 10px;
  font-size: 0.6rem;
}

/* Orbital visual */
/* ---------- Card grids ---------- */
.grid {
  display: grid;
  gap: 24px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ---------- Problem / Solution ---------- */
.qas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.qa {
  background: var(--bg-soft);
  padding: clamp(28px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.qa h3 {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.qa .tag {
  align-self: flex-start;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(59, 130, 246, 0.28);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Work cards ---------- */
.work-card {
  display: flex;
  flex-direction: column;
}

.work-media {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  margin-bottom: 24px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.work-media .inner {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}

.work-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.work-tags .tag {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  color: var(--text-muted);
}

.work-card h3 {
  margin-bottom: 8px;
}

.work-card p {
  font-size: 0.95rem;
}

/* ---------- Why list ---------- */
.why-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 48px;
}

.why-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.why-item .num {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent);
  font-size: 0.9rem;
  line-height: 1.4;
}

.why-item h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.why-item p {
  font-size: 0.92rem;
}

/* ---------- Process ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  position: relative;
}

.step .step-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 40px;
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.step p {
  font-size: 0.9rem;
}

/* ---------- Tech chips ---------- */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}

.chip:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.chip svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.08);
}

.price-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.price-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.price-card .desc {
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.price-amount small {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-faint);
}

.price-note {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 28px;
}

.price-list {
  margin-bottom: 32px;
  display: grid;
  gap: 12px;
}

.price-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.price-list li::before {
  content: "\2713";
  color: var(--accent);
  font-weight: 700;
  margin-top: 1px;
}

.price-card .btn {
  margin-top: auto;
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-block: clamp(80px, 10vw, 130px);
}

.cta-band > .swarm-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.cta-band h2 {
  max-width: 18ch;
  margin-inline: auto;
  margin-bottom: 20px;
}

.cta-band .lead {
  margin-inline: auto;
  margin-bottom: 40px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(70px, 12vh, 130px));
  padding-bottom: clamp(48px, 7vh, 80px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-hero .eyebrow {
  margin-bottom: 20px;
}

.page-hero h1 {
  margin-bottom: 18px;
  max-width: 20ch;
}

.page-hero .lead {
  max-width: 62ch;
}

/* ---------- Service blocks (services page) ---------- */
.service-block {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(44px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.service-block .block-head h2 {
  margin-bottom: 14px;
}

.service-block .block-head p {
  font-size: 0.98rem;
}

.service-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.service-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color 0.3s, transform 0.3s var(--ease), color 0.3s;
}

.service-item svg {
  width: 17px;
  height: 17px;
  color: var(--accent);
  flex-shrink: 0;
}

.service-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateX(4px);
}

/* ---------- Solutions page ---------- */
.sol-card {
  display: flex;
  flex-direction: column;
}

.sol-card .sol-num {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-faint);
  margin-bottom: auto;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

.sol-card h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.sol-card p {
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.sol-list {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}

.sol-list li {
  display: flex;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.sol-list li::before {
  content: "\2713";
  color: var(--accent);
}

/* ---------- Work page ---------- */
.case-study {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(44px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.case-side .case-meta {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.case-meta .meta-row {
  display: grid;
  gap: 4px;
}

.case-meta .meta-row dt {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.case-meta .meta-row dd {
  font-size: 0.95rem;
  color: var(--text);
}

.case-body > * + * {
  margin-top: 24px;
}

.case-body h3 {
  font-size: 1.15rem;
}

.case-body .feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.case-body .feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.case-body .feature-list li::before {
  content: "\2713";
  color: var(--accent);
  font-weight: 700;
}

/* ---------- About page ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: clamp(48px, 6vw, 72px);
}

.stat {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
}

.stat .stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.stat .stat-num em {
  font-style: normal;
  color: var(--accent);
}

.stat p {
  font-size: 0.9rem;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.value-tile {
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  background: var(--surface);
  transition: border-color 0.3s, transform 0.3s var(--ease);
}

.value-tile:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.value-tile .icon {
  width: 46px;
  height: 46px;
  margin: 0 auto 12px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: grid;
  place-items: center;
  color: var(--accent);
}

.value-tile .icon svg {
  width: 22px;
  height: 22px;
}

.value-tile h4 {
  font-size: 0.95rem;
}

/* ---------- Insights ---------- */
.insight-card {
  display: flex;
  flex-direction: column;
}

.insight-meta {
  display: flex;
  gap: 14px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 16px;
}

.insight-meta .cat {
  color: var(--accent);
}

.insight-card h3 {
  margin-bottom: 10px;
}

.insight-card p {
  font-size: 0.94rem;
  margin-bottom: 22px;
}

.insight-card .card-link {
  margin-top: auto;
}

/* ---------- Contact ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.contact-info .info-list {
  display: grid;
  gap: 22px;
  margin-top: 36px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.info-item .info-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: grid;
  place-items: center;
  color: var(--accent);
}

.info-item .info-icon svg {
  width: 19px;
  height: 19px;
}

.info-item .lbl {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 2px;
}

.info-item a,
.info-item p {
  font-size: 1rem;
  color: var(--text);
}

.info-item a:hover {
  color: var(--accent);
}

.form-card {
  padding: clamp(28px, 4vw, 44px);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.field {
  display: grid;
  gap: 8px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.field label .req {
  color: var(--accent);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

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

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239aa3b2' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.field select option {
  background: var(--surface);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.field .error-msg {
  display: none;
  font-size: 0.82rem;
  color: #ff7a7a;
}

.field.invalid input,
.field.invalid textarea,
.field.invalid select {
  border-color: #ff6b6b;
}

.field.invalid .error-msg {
  display: block;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-faint);
}

.context-note {
  display: block;
  margin-bottom: 22px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.5;
}

.context-note[hidden] {
  display: none;
}

.context-note strong {
  color: var(--accent);
}

.form-status {
  display: none;
  margin-top: 20px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
}

.form-status.ok {
  display: block;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--accent-2);
}

.form-status.err {
  display: block;
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.35);
  color: #ff8a8a;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: clamp(40px, 6vw, 64px) 28px;
  background: var(--bg-soft);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  margin-bottom: clamp(28px, 4vw, 44px);
}

.footer-brand p {
  margin-top: 16px;
  max-width: 34ch;
}

.footer-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.footer-pills span {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border: 1px solid var(--line);
  padding: 5px 10px;
  border-radius: 999px;
}

.footer-col h4 {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 18px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  font-size: 0.93rem;
  color: var(--text-muted);
  transition: color 0.3s;
}

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

.footer-col .contact-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.footer-col .contact-link svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--text-faint);
}

.footer-bottom .socials {
  display: flex;
  gap: 18px;
}

.footer-bottom .socials a {
  color: var(--text-muted);
  transition: color 0.3s;
}

.footer-bottom .socials a:hover {
  color: var(--accent);
}

/* ---------- Reveal animations ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0s);
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-badge .dot,
  .btn-primary,
  .grad-blob,
  .animate-aurora {
    animation: none;
  }

  .grad-blob {
    opacity: 0.25;
  }

  .card.tilt {
    transform: none !important;
  }

  .stats-band .stat-value {
    font-variant-numeric: tabular-nums;
  }
}

/* ---------- Stats band (truthful counters) ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: clamp(48px, 6vw, 72px);
}

.stat-item {
  background: var(--bg-soft);
  padding: clamp(24px, 3.5vw, 40px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.stat-value {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1;
  color: var(--text);
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-variant-numeric: tabular-nums;
}

.stat-item .stat-label {
  display: block;
  margin-top: 12px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* ---------- Page transitions ---------- */
@keyframes pageIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

body.page-enter {
  animation: pageIn 0.5s var(--ease) both;
}

::view-transition-old(root) {
  animation: vtOut 0.25s var(--ease) both;
}

::view-transition-new(root) {
  animation: pageIn 0.45s var(--ease) both;
}

@keyframes vtOut {
  to { opacity: 0; transform: translateY(-8px); }
}

/* ---------- Reveal variants ---------- */
[data-reveal="left"] {
  transform: translateX(-28px);
}

[data-reveal="right"] {
  transform: translateX(28px);
}

[data-reveal="scale"] {
  transform: scale(0.94);
}

[data-reveal="left"].revealed,
[data-reveal="right"].revealed,
[data-reveal="scale"].revealed {
  transform: none;
}

/* ---------- 404 ---------- */
.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 120px 24px;
}

.error-page .code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 18vw, 10rem);
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 {
  margin-bottom: 14px;
}

.error-page p {
  margin-bottom: 36px;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .value-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .service-block,
  .case-study {
    grid-template-columns: 1fr;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 880px) {
  .main-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

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

  .why-list,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .service-items,
  .form-grid {
    grid-template-columns: 1fr;
  }

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

@media (hover: none), (pointer: coarse) {
  .card.tilt {
    transform: none !important;
    will-change: auto;
  }
}

@media (max-width: 560px) {
  .grid-4,
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .case-body .feature-list {
    grid-template-columns: 1fr;
  }

  .stat-row {
    grid-template-columns: 1fr;
  }

  .stats-band {
    grid-template-columns: 1fr;
  }

  .brand-logo {
    height: 34px;
    padding: 5px 10px;
    border-radius: 10px;
  }

  .brand-logo-footer {
    height: 34px;
  }
}