/* ==========================================================================
   FinCity — Aviation UX / Premium Fintech Dark Theme
   ========================================================================== */

:root {
  --void: #020c1b;
  --deep: #0a192f;
  --deep-2: #0d213e;
  --panel: rgba(18, 38, 68, 0.55);
  --panel-solid: #0f2038;
  --border-soft: rgba(125, 178, 255, 0.14);
  --border-glow: rgba(56, 189, 248, 0.35);

  --cyan: #38bdf8;
  --cyan-bright: #7dd3fc;
  --electric: #22d3ee;
  --amber: #fbbf24;
  --amber-soft: #f6c453;
  --green: #34d399;
  --green-bright: #4ade80;
  --danger: #fb7185;
  --danger-soft: #f43f5e;
  --violet: #818cf8;

  --text-hi: #eef4ff;
  --text-mid: #a9bbdb;
  --text-dim: #6b81a6;

  --font-ui: 'Heebo', sans-serif;
  --font-data: 'JetBrains Mono', 'Heebo', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--void);
  color: var(--text-hi);
  font-family: var(--font-ui);
  overflow-x: hidden;
}

::selection { background: rgba(56, 189, 248, 0.35); color: #fff; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(56, 189, 248, 0.35); border-radius: 10px; }

/* --------------------------------------------------------------------
   Backdrop layers
   -------------------------------------------------------------------- */
.bg-void {
  position: fixed;
  inset: 0;
  z-index: -3;
  background: var(--void);
}

.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 45% at 20% 8%, rgba(56, 189, 248, 0.16) 0%, transparent 60%),
    radial-gradient(ellipse 55% 40% at 85% 25%, rgba(129, 140, 248, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(34, 211, 238, 0.08) 0%, transparent 65%),
    linear-gradient(180deg, #020c1b 0%, #061428 30%, #071a30 60%, #020c1b 100%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(125, 178, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 178, 255, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 0%, transparent 75%);
}

canvas#hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* --------------------------------------------------------------------
   Typography helpers
   -------------------------------------------------------------------- */
.font-data { font-family: var(--font-data); }

.text-gradient {
  background: linear-gradient(90deg, var(--cyan) 0%, var(--electric) 45%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  letter-spacing: 0.18em;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.68rem;
  color: var(--cyan-bright);
}

/* --------------------------------------------------------------------
   Glass surfaces
   -------------------------------------------------------------------- */
.glass {
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-soft);
}

.glass-strong {
  background: linear-gradient(160deg, rgba(20, 42, 74, 0.75) 0%, rgba(10, 25, 47, 0.75) 100%);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border: 1px solid var(--border-soft);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.glow-border {
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.08), 0 20px 60px -20px rgba(56, 189, 248, 0.25);
}

.nav-glass {
  background: rgba(6, 16, 32, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-soft);
}

/* --------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------- */
.btn-glow {
  position: relative;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}
.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -10px rgba(56, 189, 248, 0.55);
}

.btn-primary {
  background: linear-gradient(90deg, #0ea5e9 0%, #22d3ee 100%);
  color: #031425;
}

.btn-outline {
  background: rgba(148, 178, 219, 0.06);
  border: 1px solid var(--border-soft);
  color: var(--text-hi);
}
.btn-outline:hover { border-color: var(--border-glow); background: rgba(56, 189, 248, 0.08); }

/* --------------------------------------------------------------------
   Pulse / live indicators
   -------------------------------------------------------------------- */
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.55); }
  70% { box-shadow: 0 0 0 12px rgba(56, 189, 248, 0); }
  100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}
.live-dot { animation: pulse-dot 2s infinite; }

@keyframes blink-caret {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.caret { animation: blink-caret 0.9s step-end infinite; }

/* --------------------------------------------------------------------
   Reveal utility (JS toggles .is-visible via GSAP / IO fallback)
   -------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(28px); }
.reveal.is-visible { opacity: 1; transform: translateY(0); transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1); }

/* --------------------------------------------------------------------
   Floating "lost documents" in hero (video 0:01)
   -------------------------------------------------------------------- */
.float-doc {
  position: absolute;
  border-radius: 10px;
  background: linear-gradient(165deg, rgba(23, 45, 78, 0.85), rgba(12, 27, 50, 0.9));
  border: 1px solid rgba(125, 178, 255, 0.12);
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.7);
  padding: 12px 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: doc-drift linear infinite;
  will-change: transform;
}

.float-doc-tab {
  display: block;
  height: 4px;
  width: 45%;
  border-radius: 999px;
  opacity: 0.9;
  margin-bottom: 2px;
}

.float-doc-line {
  display: block;
  height: 3px;
  border-radius: 999px;
  background: rgba(169, 187, 219, 0.28);
}

.float-doc-ring {
  position: absolute;
  bottom: 8px;
  left: 8px;
  width: 12px;
  height: 12px;
  border: 1.5px solid;
  border-radius: 999px;
  opacity: 0.8;
}

@keyframes doc-drift {
  0%   { margin-top: 0; }
  50%  { margin-top: -60px; }
  100% { margin-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .float-doc { animation: none; }
}

/* --------------------------------------------------------------------
   Network graph
   -------------------------------------------------------------------- */
.graph-stage {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 560px;
}

.graph-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transform: translate(-50%, -50%) scale(0.6);
  opacity: 0;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
}
.graph-node.is-visible { transform: translate(-50%, -50%) scale(1); opacity: 1; }

.graph-node-core {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: radial-gradient(circle at 35% 30%, rgba(56, 189, 248, 0.35), rgba(10, 25, 47, 0.9));
  border: 1.5px solid var(--border-glow);
  color: var(--cyan-bright);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.35), inset 0 0 12px rgba(56, 189, 248, 0.15);
}

.graph-node--center .graph-node-core {
  background: radial-gradient(circle at 35% 30%, rgba(34, 211, 238, 0.55), rgba(8, 20, 40, 0.95));
  box-shadow: 0 0 45px rgba(34, 211, 238, 0.55), inset 0 0 18px rgba(34, 211, 238, 0.25);
}

.graph-node--warn .graph-node-core { color: var(--amber); border-color: rgba(251, 191, 36, 0.45); box-shadow: 0 0 24px rgba(251, 191, 36, 0.3); }
.graph-node--danger .graph-node-core { color: var(--danger); border-color: rgba(251, 113, 133, 0.45); box-shadow: 0 0 24px rgba(251, 113, 133, 0.3); }
.graph-node--ok .graph-node-core { color: var(--green-bright); border-color: rgba(74, 222, 128, 0.45); box-shadow: 0 0 24px rgba(74, 222, 128, 0.3); }

.graph-node-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-mid);
  white-space: nowrap;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
}

.graph-node--center .graph-node-label { color: var(--text-hi); font-size: 0.85rem; }

.graph-line {
  stroke: url(#lineGradient);
  stroke-width: 1.5;
  fill: none;
  filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.5));
  transition: stroke-width 0.3s ease, opacity 0.3s ease;
}

.graph-node-badge {
  font-size: 0.62rem;
  font-weight: 800;
  color: var(--green-bright);
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.35);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

/* --------------------------------------------------------------------
   Risk cards
   -------------------------------------------------------------------- */
.risk-card {
  position: relative;
  border-radius: 22px;
  padding: 22px;
  overflow: hidden;
}

.risk-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
}

.risk-badge--medium { background: rgba(251, 191, 36, 0.14); color: var(--amber-soft); border: 1px solid rgba(251, 191, 36, 0.3); }
.risk-badge--high { background: rgba(251, 113, 133, 0.14); color: var(--danger); border: 1px solid rgba(251, 113, 133, 0.3); }

.risk-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(125, 178, 255, 0.08);
  font-size: 0.85rem;
}
.risk-row:last-of-type { border-bottom: none; }
.risk-row-label { color: var(--text-dim); font-weight: 600; display: flex; align-items: center; gap: 6px; }
.risk-row-value { font-family: var(--font-data); font-weight: 700; }

.ai-suggestion {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  background: linear-gradient(120deg, rgba(56, 189, 248, 0.1), rgba(34, 211, 238, 0.04));
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cyan-bright);
}

.confidence-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(125, 178, 255, 0.12);
  overflow: hidden;
  margin-top: 10px;
}
.confidence-fill {
  height: 100%;
  border-radius: 999px;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--green-bright));
  transition: width 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------
   KPI live bar
   -------------------------------------------------------------------- */
.kpi-value {
  font-family: var(--font-data);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.kpi-bar-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(125, 178, 219, 0.12);
  overflow: hidden;
}
.kpi-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  transition: width 1.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------
   Bento (why join)
   -------------------------------------------------------------------- */
.bento-dark {
  border-radius: 26px;
  transition: transform 0.45s cubic-bezier(0.16,1,0.3,1), box-shadow 0.45s ease, border-color 0.45s ease;
}
.bento-dark:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 30px 60px -30px rgba(56, 189, 248, 0.35);
}

/* --------------------------------------------------------------------
   Form fields (dark)
   -------------------------------------------------------------------- */
.field-dark {
  background: rgba(12, 26, 48, 0.6);
  border: 1px solid var(--border-soft);
  color: var(--text-hi);
}
.field-dark::placeholder { color: var(--text-dim); }
.field-dark:focus { border-color: var(--cyan); outline: none; box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15); }

@media (max-width: 768px) {
  .graph-stage { min-height: 720px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
  .graph-node { opacity: 1 !important; transform: translate(-50%, -50%) scale(1) !important; }
}