/* ============================================================
   FIDES INNOVA — Decentralized Agentic AI
   Design system: deep-space navy, electric blue gradient brand
   ============================================================ */

:root {
  --bg: #04070f;
  --bg-elev: #070d1d;
  --surface: #0a1226;
  --surface-2: #0d1730;
  --line: rgba(96, 140, 255, 0.14);
  --line-strong: rgba(96, 140, 255, 0.28);

  --brand-deep: #0b1f6b;
  --brand: #1d4ed8;
  --brand-bright: #2f6bff;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);

  --text: #e8eefc;
  --text-dim: #9fb0d0;
  --text-faint: #7285ac;

  --grad-brand: linear-gradient(135deg, #0b1f6b 0%, #1d4ed8 45%, #38bdf8 100%);
  --grad-text: linear-gradient(100deg, #e8eefc 10%, #7dd3fc 55%, #2f6bff 95%);

  --radius: 16px;
  --radius-lg: 24px;
  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", monospace;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(47, 107, 255, 0.35); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.btn:focus-visible { outline-offset: 2px; }

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { width: min(1180px, 92vw); margin-inline: auto; }

/* ---------- background field ---------- */
.bg-field {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 600px at 85% -5%, rgba(29, 78, 216, 0.20), transparent 60%),
    radial-gradient(700px 500px at 0% 30%, rgba(11, 31, 107, 0.25), transparent 60%),
    radial-gradient(800px 700px at 60% 110%, rgba(56, 189, 248, 0.07), transparent 55%),
    var(--bg);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.5;
  background-image:
    linear-gradient(rgba(96, 140, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 140, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 75%);
}

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(4, 7, 15, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 74px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img, .nav-logo svg { width: 34px; height: 34px; }
.nav-logo .wordmark {
  font-family: var(--font-display); font-weight: 700; font-size: 1.06rem;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.nav-logo .wordmark span { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 34px; list-style: none; }
.nav-links a {
  font-size: 0.92rem; font-weight: 500; color: var(--text-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.nav-cta { display: flex; align-items: center; gap: 14px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 10px;
  font-weight: 600; font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-brand); color: #fff;
  box-shadow: 0 8px 28px rgba(29, 78, 216, 0.38);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(47, 107, 255, 0.5); }
.btn-ghost {
  border: 1px solid var(--line-strong); color: var(--text);
  background: rgba(10, 18, 38, 0.5);
}
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); }
.btn-sm { padding: 9px 18px; font-size: 0.88rem; }

.nav-burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.nav-mobile { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: 170px 0 90px;
  display: grid; align-items: center;
}
.hero-inner {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 8px 18px; background: rgba(56, 189, 248, 0.06);
  margin-bottom: 28px;
}
.eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 12px var(--accent);
  animation: pulse-dot 2.2s infinite;
}
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.4vw, 4.35rem);
  font-weight: 700; line-height: 1.06; letter-spacing: -0.02em;
  margin-bottom: 26px;
}
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero .lede {
  font-size: 1.13rem; color: var(--text-dim); max-width: 54ch;
  margin-bottom: 38px;
}
.hero .lede strong { color: var(--text); font-weight: 600; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 52px; }

.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; }
.hero-stat .num {
  font-family: var(--font-display); font-size: 1.7rem; font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-stat .lbl { font-size: 0.83rem; color: var(--text-faint); letter-spacing: 0.04em; }

/* hero visual — agent constellation */
.hero-visual { position: relative; display: grid; place-items: center; }
.constellation { width: min(520px, 100%); filter: drop-shadow(0 24px 80px rgba(29, 78, 216, 0.35)); }
.agent-node { animation: bob 5s ease-in-out infinite; }
.agents > g:nth-child(2n) .agent-node { animation-delay: -1.6s; }
.agents > g:nth-child(3n) .agent-node { animation-delay: -3.1s; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
.link-line { stroke-dasharray: 6 8; animation: dashflow 2.8s linear infinite; }
@keyframes dashflow { to { stroke-dashoffset: -28; } }

/* ---------- marquee ---------- */
.marquee-wrap {
  border-block: 1px solid var(--line);
  background: rgba(7, 13, 29, 0.6);
  overflow: hidden; padding: 18px 0;
}
.marquee { display: flex; gap: 56px; width: max-content; animation: marquee 36s linear infinite; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee-item {
  display: flex; align-items: baseline; gap: 10px; white-space: nowrap;
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-faint);
}
.marquee-item b { color: var(--accent); font-weight: 600; font-size: 0.86rem; }

/* ---------- sections ---------- */
.section { padding: 110px 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: 64px; }
.section-head.center { margin-inline: auto; text-align: center; }
.kicker {
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.26em; font-weight: 500;
  text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 16px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 700; line-height: 1.14; letter-spacing: -0.015em;
  margin-bottom: 18px;
}
.section-head p { color: var(--text-dim); font-size: 1.06rem; }

/* pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative; overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 60px rgba(3, 8, 20, 0.7), 0 0 0 1px rgba(56, 189, 248, 0.08);
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--grad-brand); opacity: 0; transition: opacity 0.3s;
}
.card:hover::before { opacity: 1; }
.card .icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center; margin-bottom: 24px;
  background: var(--accent-soft); border: 1px solid var(--line-strong);
}
.card .icon svg { width: 26px; height: 26px; }
.card h3 {
  font-family: var(--font-display); font-size: 1.28rem; font-weight: 600;
  margin-bottom: 12px; letter-spacing: -0.01em;
}
.card p { color: var(--text-dim); font-size: 0.97rem; }
.card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.tag {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.04em;
  color: var(--accent); background: var(--accent-soft);
  border: 1px solid var(--line); border-radius: 6px; padding: 4px 10px;
}

/* ---------- pipeline ---------- */
.pipeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; position: relative;
}
.step .step-num {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-faint);
  letter-spacing: 0.18em; margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.step .step-num::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.step h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin-bottom: 10px; }
.step p { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 18px; }
.step .code {
  font-family: var(--font-mono); font-size: 0.72rem; line-height: 1.7;
  color: #7dd3fc; background: rgba(3, 8, 20, 0.85);
  border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px;
  white-space: pre; overflow-x: auto;
}
.step .code .c { color: var(--text-faint); }
.step .code .g { color: #4ade80; }
.step-arrow {
  position: absolute; top: 50%; right: -15px; transform: translateY(-50%);
  z-index: 2; color: var(--accent); display: grid; place-items: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--surface-2); border: 1px solid var(--line-strong);
  font-size: 0.8rem;
}

/* ---------- platform ---------- */
.platform-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.platform-card { display: flex; flex-direction: column; }
.platform-card .meta {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--text-faint); margin-bottom: 14px;
}
.card .learn {
  margin-top: auto; padding-top: 22px;
  font-weight: 600; font-size: 0.92rem; color: var(--accent);
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap 0.2s;
}
.card .learn:hover { gap: 10px; }
.research-card { display: flex; flex-direction: column; }

/* ---------- wise ai ---------- */
.wise-inner { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 64px; align-items: center; }
.wise-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 700; line-height: 1.14; letter-spacing: -0.015em;
  margin-bottom: 18px;
}
.wise-lede { color: var(--text-dim); font-size: 1.02rem; margin-bottom: 18px; }
.wise-lede strong { color: var(--text); font-weight: 600; }
.wise-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 34px; }
.wise-stat .v {
  font-family: var(--font-display); font-size: 1.3rem; font-weight: 700;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}
.wise-stat .d { font-size: 0.82rem; color: var(--text-faint); line-height: 1.5; }
.wise-visual svg { width: 100%; filter: drop-shadow(0 20px 60px rgba(29, 78, 216, 0.28)); }

/* ---------- research ---------- */
.research-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.research-card .venue {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.16em;
  color: var(--accent); text-transform: uppercase; margin-bottom: 14px;
}

/* ---------- about band ---------- */
.about-band {
  background: linear-gradient(180deg, rgba(11, 31, 107, 0.16), rgba(7, 13, 29, 0.4));
  border-block: 1px solid var(--line);
}
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-inner blockquote {
  font-family: var(--font-display); font-size: 1.34rem; font-weight: 500;
  line-height: 1.5; letter-spacing: -0.01em; color: var(--text);
}
.about-inner blockquote em { color: var(--accent); font-style: normal; }
.timeline { display: grid; gap: 0; }
.tl-item { display: grid; grid-template-columns: 90px 1fr; gap: 22px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.tl-item:last-child { border-bottom: none; }
.tl-item .yr { font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent); padding-top: 2px; }
.tl-item .tl-title { font-family: var(--font-display); font-size: 0.98rem; font-weight: 600; margin-bottom: 4px; }
.tl-item p { font-size: 0.88rem; color: var(--text-dim); }

/* ---------- CTA ---------- */
.cta-box {
  position: relative; overflow: hidden; text-align: center;
  border: 1px solid var(--line-strong); border-radius: 28px;
  padding: 90px 40px;
  background:
    radial-gradient(600px 300px at 50% -10%, rgba(47, 107, 255, 0.22), transparent 70%),
    linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
}
.cta-box h2 {
  font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 20px;
}
.cta-box p { color: var(--text-dim); font-size: 1.08rem; max-width: 52ch; margin: 0 auto 40px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  background: rgba(4, 7, 15, 0.9);
  padding: 72px 0 36px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 48px;
  margin-bottom: 56px;
}
.footer-brand p { color: var(--text-dim); font-size: 0.92rem; max-width: 34ch; margin-top: 18px; }
.footer-social { display: flex; gap: 14px; margin-top: 24px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  border: 1px solid var(--line); color: var(--text-dim);
  transition: 0.2s;
}
.footer-social a:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.footer-social svg { width: 17px; height: 17px; }
.footer-col h3 {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--text-faint); margin-bottom: 20px;
}
.footer-col ul { list-style: none; display: grid; gap: 12px; }
.footer-col a { font-size: 0.92rem; color: var(--text-dim); transition: color 0.2s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--line); padding-top: 30px;
  display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap;
  font-size: 0.84rem; color: var(--text-faint);
}
.footer-bottom .mono { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.08em; }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .constellation { width: min(400px, 80vw); }
  .pillars, .research-grid { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: repeat(2, 1fr); }
  .step-arrow { display: none; }
  .platform-grid { grid-template-columns: 1fr; }
  .wise-inner { grid-template-columns: 1fr; gap: 44px; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 980px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-burger { display: flex; }
  .nav-mobile {
    position: fixed; inset: 74px 0 auto 0; z-index: 99;
    background: rgba(4, 7, 15, 0.97); backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    display: none; flex-direction: column; padding: 24px 6vw 32px; gap: 20px;
  }
  .nav-mobile.open { display: flex; }
  .nav-mobile a { font-size: 1.05rem; font-weight: 500; color: var(--text-dim); }
  .hero { padding-top: 130px; }
}
@media (max-width: 560px) {
  .pipeline { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .wise-stats { grid-template-columns: 1fr; }
  .hero h1 { font-size: clamp(2rem, 9.2vw, 2.6rem); }
  .hero .lede { font-size: 1.02rem; }
  .eyebrow { letter-spacing: 0.14em; font-size: 0.68rem; }
  .section-head h2 { font-size: clamp(1.7rem, 7.4vw, 2.2rem); }
  .cta-box { padding: 64px 24px; }
  .constellation { width: min(340px, 88vw); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}