/* ============================================================
   天智工坊 · Tianmind Studio — Landing page
   Blueprint / engineering-drawing aesthetic
   ============================================================ */

/* Self-hosted fonts (China-friendly delivery, no Google Fonts CDN) */
@font-face { font-family: "Syne"; font-weight: 400; font-display: swap; src: url("fonts/syne-400.woff2") format("woff2"); }
@font-face { font-family: "Syne"; font-weight: 500; font-display: swap; src: url("fonts/syne-500.woff2") format("woff2"); }
@font-face { font-family: "Syne"; font-weight: 600; font-display: swap; src: url("fonts/syne-600.woff2") format("woff2"); }
@font-face { font-family: "Syne"; font-weight: 700; font-display: swap; src: url("fonts/syne-700.woff2") format("woff2"); }
@font-face { font-family: "Syne"; font-weight: 800; font-display: swap; src: url("fonts/syne-800.woff2") format("woff2"); }

@font-face { font-family: "Archivo"; font-weight: 300; font-display: swap; src: url("fonts/archivo-300.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-weight: 400; font-display: swap; src: url("fonts/archivo-400.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-weight: 500; font-display: swap; src: url("fonts/archivo-500.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-weight: 600; font-display: swap; src: url("fonts/archivo-600.woff2") format("woff2"); }

@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-display: swap; src: url("fonts/jetbrains-mono-400.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 500; font-display: swap; src: url("fonts/jetbrains-mono-500.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 700; font-display: swap; src: url("fonts/jetbrains-mono-700.woff2") format("woff2"); }

:root {
  /* Core palette */
  --bg: #050B18;
  --bg-elev: #0A1628;
  --bg-card: #0C1B33;
  --ink: #E6F1FF;
  --ink-mute: #8892B0;
  --ink-dim: #495670;

  /* Brand accents */
  --accent: #4FACFE;
  --accent-bright: #00F2FE;
  --accent-warm: #FFD89B;
  --accent-rose: #FF6B9D;

  /* Lines */
  --line: rgba(79, 172, 254, 0.10);
  --line-strong: rgba(79, 172, 254, 0.28);
  --line-hot: rgba(79, 172, 254, 0.55);

  /* Type */
  --font-display: "Syne", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --font-body: "Archivo", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* Spacing rhythm */
  --pad-x: clamp(1.25rem, 5vw, 6rem);
  --pad-y: clamp(4rem, 10vh, 8rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  min-height: 100vh;
}

/* Ambient background gradient */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(79, 172, 254, 0.10), transparent 45%),
    radial-gradient(ellipse at 80% 100%, rgba(0, 242, 254, 0.07), transparent 50%),
    linear-gradient(180deg, #050B18 0%, #050B18 70%, #030611 100%);
  z-index: -2;
  pointer-events: none;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 172, 254, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 172, 254, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: center center;
  mask-image: radial-gradient(ellipse at 50% 30%, black 40%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 40%, transparent 95%);
  z-index: -1;
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.31  0 0 0 0 0.67  0 0 0 0 1  0 0 0 0.12 0'/></filter><rect width='140' height='140' filter='url(%23n)'/></svg>");
  opacity: 0.35;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: -1;
}

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

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

/* ===== Top bar ===== */

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem var(--pad-x);
  background: rgba(5, 11, 24, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
  transition: all 0.4s var(--ease-out);
}

.topbar__left {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.mini-logo {
  width: 24px;
  height: 24px;
  color: var(--accent);
  filter: drop-shadow(0 0 4px rgba(79, 172, 254, 0.5));
}

.topbar__brand {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.topbar__brand-en {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink-mute);
  letter-spacing: 0.2em;
  padding-left: 0.7rem;
  border-left: 1px solid var(--line-strong);
}

.topbar__nav {
  display: flex;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar__nav a {
  position: relative;
  color: var(--ink-mute);
  transition: color 0.2s;
}

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

.topbar__nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.topbar__nav a:hover::after { transform: scaleX(1); }

.lang-toggle {
  font-family: var(--font-mono);
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--ink-mute);
  padding: 0.35rem 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
}

.lang-toggle:hover { border-color: var(--accent); color: var(--ink); }

.lang-toggle__opt { transition: color 0.2s; }
.lang-toggle__opt.is-active { color: var(--accent); }
.lang-toggle__sep { opacity: 0.4; }

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

.hero {
  position: relative;
  min-height: 100vh;
  padding: 9rem var(--pad-x) 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.hero__marks .corner {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-strong);
}
.corner--tl { top: calc(var(--pad-y) * 0.4); left: var(--pad-x); border-right: none; border-bottom: none; }
.corner--tr { top: calc(var(--pad-y) * 0.4); right: var(--pad-x); border-left: none; border-bottom: none; }
.corner--bl { bottom: calc(var(--pad-y) * 0.4); left: var(--pad-x); border-right: none; border-top: none; }
.corner--br { bottom: calc(var(--pad-y) * 0.4); right: var(--pad-x); border-left: none; border-top: none; }

.hero__section-mark {
  position: absolute;
  top: 6.5rem;
  left: var(--pad-x);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-dim);
  letter-spacing: 0.15em;
}

.section-id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
}

.section-meta { color: var(--ink-dim); }

.hero__inner {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.hero__left > * {
  opacity: 0;
  transform: translateY(20px);
  animation: rise 0.9s var(--ease-out) forwards;
}

.hero__left > *:nth-child(1) { animation-delay: 0.1s; }
.hero__left > *:nth-child(2) { animation-delay: 0.25s; }
.hero__left > *:nth-child(3) { animation-delay: 0.4s; }
.hero__left > *:nth-child(4) { animation-delay: 0.55s; }
.hero__left > *:nth-child(5) { animation-delay: 0.7s; }

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

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
  margin-bottom: 1.75rem;
}

.eyebrow-tag {
  color: var(--accent);
  background: rgba(79, 172, 254, 0.08);
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--line-strong);
}

.eyebrow-sep { color: var(--ink-dim); }

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
}

.hero__title-line {
  display: block;
  background: linear-gradient(135deg, var(--ink) 0%, var(--accent) 60%, var(--accent-bright) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  padding-bottom: 0.2em;
}

.hero__title-en {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.32em;
  letter-spacing: 0.25em;
  color: var(--ink-dim);
  margin-top: 0.4em;
}

.hero__lede {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--ink-mute);
  max-width: 44ch;
  margin: 0 0 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.8rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn__arrow { transition: transform 0.3s var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 100%);
  color: var(--bg);
  border-color: transparent;
  box-shadow: 0 0 24px rgba(79, 172, 254, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn--primary:hover {
  box-shadow: 0 0 40px rgba(79, 172, 254, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.btn--primary .btn__icon svg circle { stroke-dasharray: 42 58; animation: spin 3s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); transform-origin: center; } }

.btn--ghost {
  color: var(--ink);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--accent);
  background: rgba(79, 172, 254, 0.06);
  color: var(--accent);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px dashed var(--line-strong);
}

.stat__num {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat__num--currency { color: var(--accent); }

.stat__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Hero right — power icon */

.hero__right {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
}

.power {
  position: relative;
  width: 360px;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.power__icon {
  width: 220px;
  height: 220px;
  animation: powerPulse 3s var(--ease-in-out) infinite;
}

@keyframes powerPulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 24px rgba(79, 172, 254, 0.4)); }
  50% { transform: scale(1.04); filter: drop-shadow(0 0 48px rgba(79, 172, 254, 0.8)); }
}

.power__rings {
  position: absolute;
  inset: 0;
}

.power__ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  animation: ringPulse 4s var(--ease-out) infinite;
}

.power__ring--1 { inset: 10%; animation-delay: 0s; }
.power__ring--2 { inset: -5%; animation-delay: 1.3s; }
.power__ring--3 { inset: -20%; animation-delay: 2.6s; }

@keyframes ringPulse {
  0% { transform: scale(0.85); opacity: 0; border-color: var(--accent); }
  20% { opacity: 0.6; }
  100% { transform: scale(1.15); opacity: 0; }
}

.power__label {
  position: absolute;
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-mute);
  letter-spacing: 0.3em;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.power__label-zh {
  color: var(--ink-dim);
  letter-spacing: 0.2em;
  font-size: 0.65rem;
}

.spec {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-mute);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.spec__line {
  width: 40px;
  height: 1px;
  background: var(--line-strong);
}

.spec__tag {
  color: var(--accent);
  background: rgba(79, 172, 254, 0.08);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--line-strong);
  letter-spacing: 0.08em;
}

.spec__meta { color: var(--ink-dim); letter-spacing: 0.05em; }

.spec--a { top: 18%; left: -10%; }
.spec--b { bottom: 22%; right: -8%; }

/* Hero ticker */
.hero__ticker {
  margin-top: 5rem;
  overflow: hidden;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.ticker__track {
  display: flex;
  gap: 3rem;
  animation: tickerScroll 40s linear infinite;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  will-change: transform;
}

.ticker__track span:nth-child(odd) { color: var(--accent); }
.ticker__track span:nth-child(even) { color: var(--ink-dim); opacity: 0.5; }

@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ===== Section header (shared) ===== */

.section-header {
  max-width: 1400px;
  margin: 0 auto var(--pad-y);
  padding: 0 var(--pad-x);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.section-header .section-id {
  align-self: flex-start;
  padding: 0.3rem 0.7rem;
  background: rgba(79, 172, 254, 0.08);
  border: 1px solid var(--line-strong);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin: 0;
  max-width: 28ch;
}

.section-sub {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--ink-mute);
  margin: 0;
  max-width: 52ch;
}

section { padding-block: var(--pad-y); }

/* ===== MANIFESTO ===== */

.manifesto__grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.principle {
  position: relative;
  padding: 2.5rem 2rem;
  background: linear-gradient(180deg, rgba(79, 172, 254, 0.04) 0%, transparent 100%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  transition: all 0.4s var(--ease-out);
}

.principle:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
}

.principle__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.principle__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 1rem;
  line-height: 1.3;
}

.principle__body {
  margin: 0;
  color: var(--ink-mute);
  line-height: 1.7;
}

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

.services__grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card {
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--bg-card);
  background-image: linear-gradient(180deg, rgba(79, 172, 254, 0.03), transparent);
  border: 1px solid var(--line);
  color: var(--ink);
  transition: border-color 0.3s, transform 0.3s, background 0.3s;
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
  background-image: linear-gradient(180deg, rgba(79, 172, 254, 0.06), transparent);
}

.card__edge {
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}

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

.card__edge--tl { top: -1px; left: -1px; border-top: 2px solid; border-left: 2px solid; }
.card__edge--tr { top: -1px; right: -1px; border-top: 2px solid; border-right: 2px solid; }
.card__edge--bl { bottom: -1px; left: -1px; border-bottom: 2px solid; border-left: 2px solid; }
.card__edge--br { bottom: -1px; right: -1px; border-bottom: 2px solid; border-right: 2px solid; }

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.card__dwg {
  color: var(--ink-dim);
}

.card__price {
  color: var(--accent);
  background: rgba(79, 172, 254, 0.08);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--line-strong);
}

.card__icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 1.25rem;
  opacity: 0.9;
  transition: transform 0.4s var(--ease-out), opacity 0.3s;
}

.card:hover .card__icon {
  opacity: 1;
  transform: translateY(-2px);
}

.card__icon svg { width: 100%; height: 100%; }

.card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.7rem;
  letter-spacing: -0.01em;
}

.card__desc {
  color: var(--ink-mute);
  line-height: 1.65;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.card__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0;
  margin: 0;
}

.card__tags li {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.22rem 0.55rem;
  background: rgba(79, 172, 254, 0.05);
  color: var(--ink-mute);
  border: 1px solid var(--line);
  letter-spacing: 0.05em;
}

.card__badge {
  position: absolute;
  top: 0;
  right: 1.5rem;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 0.28rem 0.6rem;
  background: var(--bg);
  color: var(--accent);
  border: 1px solid var(--line-strong);
}

.card__badge--hot {
  color: var(--accent-warm);
  border-color: rgba(255, 216, 155, 0.35);
  background: linear-gradient(135deg, var(--bg), rgba(255, 216, 155, 0.08));
}

.card--feature {
  background: linear-gradient(135deg, rgba(79, 172, 254, 0.06), rgba(0, 242, 254, 0.03));
  border-color: var(--line-strong);
}

/* ===== TECH STACK ===== */

.stack__columns {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  border-top: 1px solid var(--line-strong);
  padding-top: 3rem;
}

.stack__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.stack__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.stack__list li {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  padding-left: 1.4rem;
  position: relative;
  transition: color 0.2s;
}

.stack__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease-out);
}

.stack__list li:hover { color: var(--accent); }
.stack__list li:hover::before { width: 14px; }

/* ===== FEATURED WORK ===== */

.work__list {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.work-item {
  position: relative;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  transition: all 0.4s var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
}

.work-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(79, 172, 254, 0.08) 100%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.work-item:hover {
  border-color: var(--line-hot);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.work-item:hover::before { opacity: 1; }

.work-item__meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.work-item__code { color: var(--accent); }
.work-item__tag {
  color: var(--ink-dim);
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--line);
}

.work-item__name {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}

.work-item__desc {
  color: var(--ink-mute);
  margin: 0;
  line-height: 1.65;
}

.work-item__stats {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  letter-spacing: 0.05em;
}

.work-item__go {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s var(--ease-out);
}

.work-item:hover .work-item__go {
  opacity: 1;
  transform: translateX(0);
}

/* ===== PRICING ===== */

.pricing__table {
  max-width: 1100px;
  margin: 0 auto 5rem;
  padding: 0 var(--pad-x);
}

.pricing__row {
  display: grid;
  grid-template-columns: 2.5fr 1fr 1.2fr;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
  transition: background 0.3s;
}

.pricing__row:not(.pricing__row--head):hover {
  background: linear-gradient(90deg, rgba(79, 172, 254, 0.04), transparent);
}

.pricing__row--head {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1rem;
}

.pricing__scope {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
}

.pricing__hash {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line-strong);
  letter-spacing: 0.1em;
}

.pricing__price {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--accent);
  font-weight: 500;
}

.pricing__time {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
}

/* Process */

.process {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem var(--pad-x) 0;
  border-top: 1px solid var(--line);
}

.process__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 2rem;
  text-align: center;
  letter-spacing: -0.01em;
}

.process__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  position: relative;
}

.process__steps::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent 50%, var(--accent));
  opacity: 0.4;
}

.process__steps li {
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.process__num {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  position: relative;
  z-index: 1;
}

.process__text {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--ink-mute);
  max-width: 12em;
  line-height: 1.4;
}

/* ===== FAQ ===== */

.faq__list {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
  transition: padding 0.3s;
}

.faq-item:first-child { border-top: 1px solid var(--line); }

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  transition: color 0.2s;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item__q {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: color 0.2s;
}

.faq-item__plus {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 300;
  transition: transform 0.3s var(--ease-out);
  line-height: 1;
}

.faq-item[open] .faq-item__plus { transform: rotate(45deg); }
.faq-item[open] .faq-item__q { color: var(--accent); }

.faq-item summary:hover .faq-item__q { color: var(--accent); }

.faq-item__a {
  color: var(--ink-mute);
  line-height: 1.7;
  margin: 1rem 0 0;
  max-width: 64ch;
  animation: faqOpen 0.4s var(--ease-out);
}

@keyframes faqOpen {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.contact__grid {
  max-width: 1200px;
  margin: 0 auto 3rem;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.contact-card {
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all 0.3s var(--ease-out);
  overflow: hidden;
}

.contact-card::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.contact-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
  background: linear-gradient(180deg, rgba(79, 172, 254, 0.04), var(--bg-card));
}

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

.contact-card__icon {
  width: 36px;
  height: 36px;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.contact-card__icon svg { width: 100%; height: 100%; }

.contact-card__title {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.contact-card__sub {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--ink-mute);
  line-height: 1.5;
}

.contact-card__go {
  margin-top: auto;
  padding-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
}

.contact-card--primary {
  background: linear-gradient(135deg, rgba(255, 216, 155, 0.06) 0%, rgba(79, 172, 254, 0.08) 100%);
  border-color: rgba(255, 216, 155, 0.3);
}

.contact-card--primary .contact-card__icon { color: var(--accent-warm); }
.contact-card--primary .contact-card__go { color: var(--accent-warm); }

.contact__footer {
  text-align: center;
  padding: 0 var(--pad-x);
}

.contact__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 1.5rem;
  background: rgba(46, 160, 67, 0.08);
  border: 1px solid rgba(46, 160, 67, 0.3);
  color: #7EE8A5;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.contact__badge-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #2EA043;
  color: #0A1628;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 800;
}

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

.footer {
  padding: 3rem var(--pad-x);
  border-top: 1px solid var(--line);
  background: rgba(5, 11, 24, 0.8);
}

.footer__inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink-mute);
}

.footer__logo {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.footer__meta {
  display: flex;
  gap: 0.7rem;
  align-items: center;
}

.footer__links a {
  color: var(--accent);
  transition: color 0.2s;
}

.footer__links a:hover { color: var(--accent-bright); }

/* ===== RESPONSIVE ===== */

@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero__right { order: -1; min-height: 280px; }
  .power { width: 280px; height: 280px; }
  .power__icon { width: 180px; height: 180px; }
  .spec--a { top: 5%; left: 5%; }
  .spec--b { bottom: 5%; right: 5%; }

  .services__grid,
  .manifesto__grid,
  .stack__columns,
  .work__list,
  .contact__grid { grid-template-columns: repeat(2, 1fr); }

  .process__steps { grid-template-columns: repeat(3, 1fr); gap: 2rem 1rem; }
  .process__steps::before { display: none; }

  .topbar__nav { display: none; }
}

@media (max-width: 640px) {
  :root { --pad-x: 1.25rem; --pad-y: 3.5rem; }

  .hero { padding: 8rem 1.25rem 3rem; }
  .hero__section-mark { top: 5.5rem; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }

  .services__grid,
  .manifesto__grid,
  .stack__columns,
  .work__list,
  .contact__grid { grid-template-columns: 1fr; }

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

  .pricing__row { grid-template-columns: 1fr; gap: 0.5rem; }
  .pricing__row--head { display: none; }
  .pricing__scope { font-size: 1rem; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 1rem; }

  .corner { display: none; }

  .btn { padding: 0.85rem 1.3rem; font-size: 0.78rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}