/* Palette seed: СТУДІЯ РОЗВИТКУ ІНФОРМАЦІЙНИХ ТЕХНОЛОГІЙ → hue 95 */
:root {
  --bg: hsl(315, 38%, 7%);
  --text: hsl(315, 18%, 96%);
  --accent: hsl(95, 78%, 58%);
  --accent-two: hsl(205, 80%, 55%);
  --accent-hot: hsl(330, 75%, 58%);
  --panel: color-mix(in srgb, var(--bg) 68%, hsl(315, 24%, 16%));
  --muted: color-mix(in srgb, var(--text) 58%, transparent);
  --line: color-mix(in srgb, var(--text) 12%, transparent);
  --glow: color-mix(in srgb, var(--accent) 45%, transparent);
  --font-display: "Syne", "Manrope", system-ui, sans-serif;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
}

body.grid {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

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

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

/* ── Ambient background ── */

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  animation: orb-drift 18s ease-in-out infinite;
}

.orb-a {
  width: 55vw;
  height: 55vw;
  top: -15%;
  left: -10%;
  background: color-mix(in srgb, var(--accent) 35%, transparent);
}

.orb-b {
  width: 45vw;
  height: 45vw;
  top: 30%;
  right: -15%;
  background: color-mix(in srgb, var(--accent-two) 30%, transparent);
  animation-delay: -6s;
  animation-duration: 22s;
}

.orb-c {
  width: 35vw;
  height: 35vw;
  bottom: -10%;
  left: 30%;
  background: color-mix(in srgb, var(--accent-hot) 22%, transparent);
  animation-delay: -12s;
  animation-duration: 26s;
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--text) 4%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text) 4%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black, transparent);
}

@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(4%, 6%) scale(1.08); }
  66% { transform: translate(-3%, 4%) scale(0.94); }
}

/* ── Scroll reveal ── */

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.9s var(--ease-out-expo),
    transform 0.9s var(--ease-out-expo);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Header ── */

.header {
  position: sticky;
  top: 1rem;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: 1200px;
  width: calc(100% - 2rem);
  margin: 1rem auto 0;
  padding: 0.65rem 1.25rem;
  background: color-mix(in srgb, var(--panel) 75%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 0.4s var(--ease-out-expo), box-shadow 0.4s, padding 0.4s;
}

.header.is-scrolled {
  top: 0.5rem;
  padding: 0.5rem 1.1rem;
  box-shadow: 0 8px 40px color-mix(in srgb, var(--bg) 80%, transparent);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.6rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-two));
  color: var(--bg);
  font-weight: 800;
  font-size: 1.1rem;
  animation: logo-pulse 3s ease-in-out infinite;
}

@keyframes logo-pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 40%, transparent); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

.logo-text {
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  line-height: 1.2;
  max-width: 18rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
}

.nav a {
  position: relative;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.25s;
  overflow: hidden;
}

.nav a::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, transparent), color-mix(in srgb, var(--accent-two) 12%, transparent));
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.3s, transform 0.3s var(--ease-spring);
}

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

.nav a:hover::before,
.nav a.is-active::before {
  opacity: 1;
  transform: scale(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-toggle {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.3s var(--ease-spring);
}

.lang-toggle:hover {
  background: color-mix(in srgb, var(--text) 6%, transparent);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  transform: rotate(-4deg) scale(1.05);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

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

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

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

/* ── Main layout ── */

main {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

section {
  padding: 5rem 0;
  position: relative;
}

.section-head {
  margin-bottom: 3rem;
  position: relative;
}

.section-index {
  display: block;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 50%, transparent), transparent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: -1.5rem;
  user-select: none;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.section-head p {
  margin-top: 0.75rem;
  color: var(--muted);
  max-width: 36rem;
}

.section-line {
  width: 0;
  height: 3px;
  margin-top: 1.25rem;
  background: linear-gradient(90deg, var(--accent), var(--accent-two), transparent);
  border-radius: 2px;
  transition: width 1.2s var(--ease-out-expo);
}

.section-head.is-visible .section-line {
  width: min(120px, 30%);
}

/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.925rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, color-mix(in srgb, white 25%, transparent) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 0.6s;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-two));
  color: var(--bg);
  box-shadow: 0 4px 28px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn.primary:hover {
  box-shadow: 0 8px 40px color-mix(in srgb, var(--accent-two) 45%, transparent);
}

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

.btn.secondary:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

/* ── Hero ── */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  min-height: calc(100vh - 8rem);
  padding-top: 2rem;
}

.shimmer-border {
  position: relative;
  background: color-mix(in srgb, var(--panel) 60%, transparent);
}

.shimmer-border::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(90deg, var(--accent), var(--accent-two), var(--accent-hot), var(--accent));
  background-size: 300% 100%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: shimmer 4s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

.tag {
  display: inline-block;
  margin-bottom: 1.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text) 60%, color-mix(in srgb, var(--accent) 70%, var(--text)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 34rem;
  margin-bottom: 2rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.hero-metrics {
  display: flex;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.hero-metric {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hero-metric-val {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  animation: metric-glow 2.5s ease-in-out infinite;
}

.hero-metric:nth-child(2) .hero-metric-val { animation-delay: 0.4s; color: var(--accent-two); }
.hero-metric:nth-child(3) .hero-metric-val { animation-delay: 0.8s; }

@keyframes metric-glow {
  0%, 100% { opacity: 1; filter: brightness(1); }
  50% { opacity: 0.75; filter: brightness(1.3); }
}

.hero-metric-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* Hero visual / orbit */

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  perspective: 800px;
}

.hero-orbit {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}

.orbit-ring-1 {
  width: 100%;
  height: 100%;
  animation: orbit-spin 20s linear infinite;
}

.orbit-ring-2 {
  width: 75%;
  height: 75%;
  border-color: color-mix(in srgb, var(--accent-two) 30%, transparent);
  animation: orbit-spin 14s linear infinite reverse;
}

.orbit-ring-3 {
  width: 50%;
  height: 50%;
  border-style: dashed;
  animation: orbit-spin 10s linear infinite;
}

.orbit-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px var(--glow);
}

.orbit-dot-1 {
  top: 10%;
  left: 50%;
  animation: orbit-dot-pulse 2s ease-in-out infinite;
}

.orbit-dot-2 {
  bottom: 20%;
  right: 15%;
  background: var(--accent-two);
  animation: orbit-dot-pulse 2s ease-in-out infinite 0.6s;
}

.orbit-dot-3 {
  top: 40%;
  left: 8%;
  background: var(--accent-hot);
  animation: orbit-dot-pulse 2s ease-in-out infinite 1.2s;
}

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

@keyframes orbit-dot-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.6; }
}

.hero-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 3rem 2.5rem;
  background: color-mix(in srgb, var(--panel) 85%, transparent);
  border: 1px solid var(--line);
  border-radius: 2rem;
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out;
  box-shadow:
    0 24px 80px color-mix(in srgb, var(--bg) 70%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
  overflow: hidden;
}

.hero-card-letter {
  font-family: var(--font-display);
  font-size: 6rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent-two), var(--accent-hot));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient-shift 5s ease infinite;
}

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

.hero-card-words {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-card-scanline {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, color-mix(in srgb, var(--accent) 4%, transparent) 50%);
  background-size: 100% 4px;
  pointer-events: none;
  opacity: 0.5;
  animation: scanline 8s linear infinite;
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* ── Profile ── */

.profile-bento {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3rem;
  align-items: center;
}

.profile-visual {
  position: relative;
}

.profile-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  max-width: 300px;
  margin: 0 auto;
  background:
    radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 60%),
    var(--panel);
  border-radius: 2rem;
  border: 1px solid var(--line);
  transform: rotate(-3deg);
  transition: transform 0.5s var(--ease-spring);
}

.profile-visual:hover .profile-frame {
  transform: rotate(0deg) scale(1.02);
}

.profile-badge-letter {
  font-family: var(--font-display);
  font-size: 7rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-two));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.profile-frame-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 2px solid var(--accent);
}

.profile-frame-corner-tl {
  top: -6px;
  left: -6px;
  border-right: none;
  border-bottom: none;
  animation: corner-blink 3s ease-in-out infinite;
}

.profile-frame-corner-br {
  bottom: -6px;
  right: -6px;
  border-left: none;
  border-top: none;
  animation: corner-blink 3s ease-in-out infinite 1.5s;
}

@keyframes corner-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.profile-chips {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.profile-chip {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: color-mix(in srgb, var(--accent-two) 12%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--accent-two) 25%, var(--line));
  animation: chip-float 4s ease-in-out infinite;
}

.profile-chip:nth-child(2) { animation-delay: 0.5s; }
.profile-chip:nth-child(3) { animation-delay: 1s; }

@keyframes chip-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.profile-quote {
  position: relative;
  padding: 2rem 2rem 2rem 2.5rem;
  border-left: 3px solid var(--accent);
  background: linear-gradient(135deg, color-mix(in srgb, var(--panel) 90%, var(--accent) 10%), var(--panel));
  border-radius: 0 1.5rem 1.5rem 0;
}

.profile-quote::before {
  content: "\201C";
  position: absolute;
  top: -0.25rem;
  left: 0.75rem;
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1;
  color: color-mix(in srgb, var(--accent) 30%, transparent);
}

.profile-quote p {
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

.profile-strip {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.profile-strip span {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--line);
  transform-origin: left;
  animation: strip-grow 1.5s var(--ease-out-expo) forwards;
}

.profile-strip span:nth-child(1) { animation-delay: 0.2s; background: var(--accent); }
.profile-strip span:nth-child(2) { animation-delay: 0.35s; background: color-mix(in srgb, var(--accent) 70%, var(--accent-two)); }
.profile-strip span:nth-child(3) { animation-delay: 0.5s; background: var(--accent-two); }
.profile-strip span:nth-child(4) { animation-delay: 0.65s; }
.profile-strip span:nth-child(5) { animation-delay: 0.8s; }

@keyframes strip-grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ── Areas bento ── */

.areas-bento {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: 1.25rem;
}

.area-card {
  position: relative;
  padding: 1.75rem;
  border-radius: 1.5rem;
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.4s var(--ease-spring), border-color 0.3s, box-shadow 0.3s;
}

.area-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
  box-shadow: 0 20px 50px color-mix(in srgb, var(--bg) 60%, transparent);
}

.area-card-featured {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 320px;
  background:
    radial-gradient(ellipse at 80% 20%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 50%),
    var(--panel);
}

.area-card-tilt {
  grid-column: 2;
  grid-row: 1;
  transform: rotate(1deg);
}

.area-card-tilt:hover {
  transform: translateY(-6px) rotate(0deg);
}

.area-card-glass {
  grid-column: 2;
  grid-row: 2;
  background: color-mix(in srgb, var(--panel) 50%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.area-card-outline {
  grid-column: 1 / -1;
  grid-row: 3;
  background: transparent;
  border: 2px dashed color-mix(in srgb, var(--accent-two) 30%, var(--line));
}

.area-card-glow {
  position: absolute;
  top: -50%;
  right: -30%;
  width: 60%;
  height: 100%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 25%, transparent), transparent 70%);
  animation: glow-pulse 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.area-icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
  transition: transform 0.4s var(--ease-spring);
}

.area-card:hover .area-icon {
  transform: scale(1.15) rotate(-8deg);
}

.area-card-outline .area-icon {
  color: var(--accent-two);
}

.area-num {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.area-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.65rem;
}

.area-card-featured h3 {
  font-size: 1.35rem;
}

.area-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ── Process timeline ── */

.process-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
  padding-top: 2rem;
}

.process-line {
  position: absolute;
  top: 2.6rem;
  left: 12%;
  right: 12%;
  height: 3px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
}

.process-line-fill {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-two));
  border-radius: inherit;
  transition: width 1.5s var(--ease-out-expo);
  box-shadow: 0 0 12px var(--glow);
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.25rem;
}

.step-node {
  position: relative;
  z-index: 1;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--line);
  transition: border-color 0.4s, box-shadow 0.4s, transform 0.4s var(--ease-spring);
}

.step.is-visible .step-node {
  border-color: var(--accent);
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 35%, transparent);
  animation: step-pop 0.6s var(--ease-spring);
}

@keyframes step-pop {
  0% { transform: scale(0.5); }
  70% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.step-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent-two);
}

.step-card {
  padding: 1.5rem;
  border-radius: 1.25rem;
  background: var(--panel);
  border: 1px solid var(--line);
  width: 100%;
  transition: transform 0.4s var(--ease-spring), border-color 0.3s;
}

.step:hover .step-card {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent-two) 30%, var(--line));
}

.step-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Contact ── */

.contact-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  border-radius: 1.25rem;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.35s var(--ease-spring), border-color 0.3s, background 0.3s;
}

.contact-item:hover {
  transform: translateX(8px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
}

.contact-item-phone:hover { background: color-mix(in srgb, var(--accent) 6%, var(--panel)); }
.contact-item-email:hover { background: color-mix(in srgb, var(--accent-two) 6%, var(--panel)); }
.contact-item-address:hover { background: color-mix(in srgb, var(--accent-hot) 6%, var(--panel)); }

.contact-icon {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}

.contact-item-email .contact-icon {
  background: color-mix(in srgb, var(--accent-two) 12%, transparent);
  color: var(--accent-two);
}

.contact-item-address .contact-icon {
  background: color-mix(in srgb, var(--accent-hot) 12%, transparent);
  color: var(--accent-hot);
}

.contact-icon svg {
  width: 1.1rem;
  height: 1.1rem;
}

.contact-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.contact-item a,
.contact-item span:not(.contact-icon):not(.contact-label) {
  font-size: 0.95rem;
  font-weight: 500;
}

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

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 2rem;
  border-radius: 1.5rem;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--panel) 95%, var(--accent) 5%), var(--panel));
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.contact-form::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-two), var(--accent-hot));
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

.form-header {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.25rem;
}

.form-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--muted) 40%, transparent);
}

.form-dot:nth-child(1) { background: var(--accent-hot); }
.form-dot:nth-child(2) { background: var(--accent); }
.form-dot:nth-child(3) { background: var(--accent-two); }

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
}

.form-field input,
.form-field textarea {
  padding: 0.8rem 1rem;
  border-radius: 0.85rem;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
  transform: translateY(-1px);
}

.form-field textarea {
  resize: vertical;
  min-height: 6rem;
}

.contact-form .btn {
  align-self: flex-start;
}

/* ── Footer ── */

.footer {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1rem 2.5rem;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.footer-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-two));
  color: var(--bg);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  animation: logo-pulse 3s ease-in-out infinite;
}

.footer p {
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

/* ── Reduced motion ── */

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

  .reveal {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ── Breakpoints ── */

@media (max-width: 980px) {
  .header {
    flex-wrap: wrap;
  }

  .nav {
    display: none;
    flex-direction: column;
    width: 100%;
    order: 4;
    padding: 0.75rem 0 0.25rem;
    border-top: 1px solid var(--line);
    margin-left: 0;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    width: 100%;
    text-align: center;
    padding: 0.65rem;
  }

  .menu-toggle {
    display: flex;
  }

  .logo-text {
    max-width: none;
    font-size: 0.7rem;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    min-height: 300px;
    max-width: 22rem;
    margin: 0 auto;
  }

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

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

  .area-card-featured,
  .area-card-tilt,
  .area-card-glass,
  .area-card-outline {
    grid-column: auto;
    grid-row: auto;
    min-height: auto;
    transform: none;
  }

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

  .process-line {
    display: none;
  }

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

@media (max-width: 620px) {
  .header {
    top: 0.5rem;
    width: calc(100% - 1rem);
    margin-top: 0.5rem;
    border-radius: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  .hero-metrics {
    gap: 1.25rem;
  }

  .process-track {
    grid-template-columns: 1fr;
  }

  section {
    padding: 3rem 0;
  }

  .section-index {
    font-size: 3rem;
  }
}