/* ============ CRIEVO — Design System ============ */
:root {
  --bg: #08000f;
  --bg-2: #0d0220;
  --bg-3: #14082b;
  --ink: #f5f0ff;
  --ink-dim: #b8a8d4;
  --ink-mute: #6b5d8a;
  --line: rgba(168, 85, 247, 0.16);
  --line-strong: rgba(168, 85, 247, 0.42);
  --purple: #a855f7;
  --purple-deep: #7c3aed;
  --purple-bright: #c084fc;
  --magenta: #d946ef;
  --lime: #c5fc00;
  --glow: 0 0 60px rgba(168, 85, 247, 0.45);
  --glow-soft: 0 0 120px rgba(168, 85, 247, 0.25);
  --font-display: "Space Grotesk", "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.7, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  font-feature-settings: "ss01", "ss02";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  cursor: none;
}

@media (max-width: 880px) {
  html, body { cursor: auto; }
}

body {
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(168, 85, 247, 0.18), transparent 60%),
    radial-gradient(900px 600px at -10% 50%, rgba(124, 58, 237, 0.12), transparent 60%),
    var(--bg);
  min-height: 100vh;
  position: relative;
}

/* film grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* grid background pattern */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(168, 85, 247, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(168, 85, 247, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* cursor blob */
.cursor-blob {
  position: fixed;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.4), transparent 60%);
  pointer-events: none;
  z-index: 1;
  filter: blur(40px);
  transform: translate(-50%, -50%);
  transition: opacity 0.4s;
  will-change: transform;
}

.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
  transition: width 0.2s var(--ease), height 0.2s var(--ease);
}

.cursor-dot.hover {
  width: 48px;
  height: 48px;
  background: var(--purple);
}

@media (max-width: 880px) {
  .cursor-blob, .cursor-dot { display: none; }
}

/* containers */
.container {
  position: relative;
  z-index: 2;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 720px) {
  .container { padding: 0 24px; }
}

/* sections */
section {
  position: relative;
  z-index: 2;
  padding: 140px 0;
}

@media (max-width: 720px) {
  section { padding: 80px 0; }
}

/* type */
h1, h2, h3 { font-weight: 500; letter-spacing: -0.04em; line-height: 0.92; }
.mono { font-family: var(--font-mono); letter-spacing: 0; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--purple-bright);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 16px var(--purple);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* shared utility */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

/* nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(14px);
  background: rgba(8, 0, 15, 0.55);
  border-bottom: 1px solid var(--line);
  transition: padding 0.3s var(--ease);
}
.nav.scrolled { padding: 14px 48px; }
@media (max-width: 720px) {
  .nav, .nav.scrolled { padding: 14px 24px; }
}

.logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--purple), var(--magenta));
  position: relative;
  box-shadow: 0 0 24px rgba(168, 85, 247, 0.6);
  display: grid;
  place-items: center;
  color: var(--bg);
  font-weight: 700;
  font-size: 14px;
  font-family: var(--font-mono);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 13px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 0.3s var(--ease);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
}
.nav-links a .nav-marker {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 0 0 var(--purple);
  transform: scale(0);
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.is-active {
  color: var(--ink);
}
.nav-links a.is-active .nav-marker {
  transform: scale(1);
  box-shadow: 0 0 14px var(--purple), 0 0 24px rgba(168,85,247,0.6);
  animation: pulse 1.6s ease-in-out infinite;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 14px; bottom: 2px;
  height: 1px; width: 0;
  background: var(--purple);
  transition: width 0.4s var(--ease);
}
.nav-links a:hover::after { width: calc(100% - 14px); }
.nav-links a.is-active::after { width: calc(100% - 14px); background: var(--purple-bright); box-shadow: 0 0 8px var(--purple); }

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 4px;
  background: rgba(168, 85, 247, 0.05);
}
.lang-toggle button {
  background: transparent;
  border: 0;
  color: var(--ink-mute);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: none;
  transition: all 0.25s var(--ease);
  letter-spacing: 0.1em;
}
.lang-toggle button.active {
  background: var(--purple);
  color: var(--bg);
}

@media (max-width: 880px) {
  .nav-links li:not(:last-child) { display: none; }
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 28px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  cursor: none;
  position: relative;
  overflow: hidden;
  transition: all 0.3s var(--ease);
  will-change: transform;
}
.btn-primary {
  background: var(--purple);
  border-color: var(--purple);
  color: var(--bg);
  box-shadow: 0 0 0 0 rgba(168, 85, 247, 0.6);
}
.btn-primary:hover {
  background: var(--purple-bright);
  box-shadow: 0 0 40px 0 rgba(168, 85, 247, 0.5);
}
.btn:hover { border-color: var(--purple-bright); }
.btn .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}
.btn:hover .arrow { transform: translateX(4px); }

/* glow halo */
.halo {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
  filter: blur(8px);
}
.reveal.in { opacity: 1; transform: translateY(0); filter: blur(0); }

/* per-section entrance — fires when section becomes active */
section { transition: transform 0.8s var(--ease); }
section.section-active .section-head { animation: headSlideIn 1s var(--ease) both; }
section.section-active .impact-card,
section.section-active .service-card,
section.service .work-card,
section.section-active .process-step,
section.section-active .stat-block {
  animation: cardRise 0.9s var(--ease) both;
}
@keyframes headSlideIn {
  from { opacity: 0; transform: translateX(-30px); filter: blur(12px); }
  to { opacity: 1; transform: translateX(0); filter: blur(0); }
}
@keyframes cardRise {
  from { opacity: 0; transform: translateY(50px) scale(0.97); filter: blur(10px); }
  to { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

/* highlight currently-viewed section globally */
section.section-active::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% 50%, rgba(168, 85, 247, 0.05), transparent 70%);
  z-index: 0;
  animation: sectionGlow 1.4s var(--ease) both;
}
@keyframes sectionGlow {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* When a section is the active one, give its cards the hover treatment */
section.section-active .service-card {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}
section.section-active .service-card::before { opacity: 0.6; }
section.section-active .service-card .service-corner {
  color: var(--purple-bright);
  opacity: 1;
}

section.section-active .impact-card::before { opacity: 0.5; }
section.section-active .impact-card .impact-bar-fill { width: 100%; }

section.section-active .work-card {
  border-color: var(--line-strong);
}
section.section-active .work-card .thumb-shape {
  transform: scale(1.04) rotate(-1deg);
}
section.section-active .work-card .work-arrow {
  color: var(--purple-bright);
}

section.section-active .stack-cell::before { opacity: 0.5; }
section.section-active .stat-block { background: linear-gradient(180deg, rgba(168, 85, 247, 0.08), transparent); }

section.section-active .process-dot {
  border-color: var(--purple);
  box-shadow: 0 0 24px rgba(168, 85, 247, 0.4);
}
section.section-active .process-dot-inner { animation: pulse 1.6s ease-in-out infinite; }

/* marquee */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
  position: relative;
  z-index: 2;
  background: var(--bg-2);
}
.marquee-track {
  display: flex;
  gap: 64px;
  white-space: nowrap;
  animation: marquee 38s linear infinite;
  width: max-content;
}
.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--ink);
}
.marquee-item .star {
  color: var(--purple);
  font-size: 28px;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* section transitions / dividers */
.section-divider {
  position: relative;
  z-index: 2;
  padding: 60px 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  max-width: 1440px;
  margin: 0 auto;
}
.divider-line { flex: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); }
.divider-orb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 24px var(--purple), 0 0 60px rgba(168, 85, 247, 0.4);
  animation: pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}
.divider-dots {
  display: flex;
  gap: 14px;
  justify-content: center;
  width: 100%;
}
.divider-dots span {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--purple-bright);
  opacity: 0.4;
  animation: dotPulse 1.8s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 0.2; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-4px); box-shadow: 0 0 12px var(--purple); }
}
.divider-pulse {
  width: 100%;
  height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.divider-pulse-bar {
  position: absolute;
  top: -1px; left: 0;
  height: 3px;
  width: 30%;
  background: linear-gradient(90deg, transparent, var(--purple), var(--magenta), transparent);
  animation: scanX 3.5s linear infinite;
  box-shadow: 0 0 16px var(--purple);
}
@keyframes scanX {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

/* mask-reveal between sections */
section { isolation: isolate; }
section::before {
  content: "";
  position: absolute;
  inset: -1px 0 auto 0;
  height: 120px;
  background: linear-gradient(180deg, var(--bg) 0%, transparent 100%);
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}

/* scramble text holder */
.scramble {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}