/**
 * Global polish layer — consistent hover, focus, transition, and micro-interaction
 * patterns across all pages. Loaded after page-specific CSS.
 */

/* ── Standardized transitions on all interactive elements ────────────────── */
a, button, input, select, textarea,
.card, .metric-card, .algo-card, .surface-card, .runtime-card,
.explore-card, .img-card, .faq-item, .work-card, .skill-card,
.pipe-step, .badge, .tag, .demo-metric, .demo-context-card,
.demo-flow-card, .platform-card, .service-card, .chart-card,
.module-row, .ops-card, .trade-row, .kv-row {
  transition: transform 0.2s ease, box-shadow 0.2s ease,
              border-color 0.2s ease, background 0.2s ease,
              color 0.2s ease, opacity 0.2s ease;
}

/* ── Universal card hover lift ───────────────────────────────────────────── */
.card:hover, .metric-card:hover, .algo-card:hover,
.surface-card:hover, .runtime-card:hover,
.explore-card:hover, .img-card:hover,
.work-card:hover, .skill-card:hover,
.demo-context-card:hover, .demo-flow-card:hover,
.platform-card:hover, .service-card:hover,
.chart-card:hover, .pipe-step:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(88, 215, 255, 0.08);
}

/* ── Button hover & active polish ────────────────────────────────────────── */
button:not(.chatbot-close):not(#chatbot-toggle):hover,
.btn:hover, .filter-btn:hover, .tab-btn:hover,
.algo-tab:hover, .group-chip:hover {
  transform: translateY(-1px);
}
button:active, .btn:active,
.filter-btn:active, .tab-btn:active {
  transform: translateY(0) scale(0.98);
}

/* ── Consistent focus ring for all inputs ────────────────────────────────── */
input:focus, select:focus, textarea:focus {
  border-color: rgba(88, 215, 255, 0.45) !important;
  box-shadow: 0 0 0 3px rgba(88, 215, 255, 0.12) !important;
  outline: none;
}

/* ── Tag / badge interactive polish ──────────────────────────────────────── */
.tag:hover, .badge:hover, .htag:hover, .explore-tag:hover {
  transform: translateY(-1px);
  filter: brightness(1.15);
}

/* ── Table row hover polish ──────────────────────────────────────────────── */
.mod-table tr:hover td,
.ops-bar-row:hover,
.trade-row:hover,
.kv-row:hover {
  background: rgba(88, 215, 255, 0.03);
  border-color: rgba(88, 215, 255, 0.1);
}

/* ── Metric value glow on hover ──────────────────────────────────────────── */
.metric-card:hover .metric-val,
.demo-metric:hover .metric-val,
.hero-stat:hover .val {
  text-shadow: 0 0 20px rgba(123, 240, 190, 0.3);
}

/* ── Timeline dot pulse on hover ─────────────────────────────────────────── */
.timeline-item:hover::before {
  box-shadow: 0 0 0 4px rgba(88, 215, 255, 0.2);
}

/* ── Accordion smoother ──────────────────────────────────────────────────── */
.faq-q:hover, .accordion-header:hover {
  background: rgba(88, 215, 255, 0.04);
}

/* ── Image card hover zoom ───────────────────────────────────────────────── */
.img-card:hover img {
  transform: scale(1.02);
  transition: transform 0.4s ease;
}
.img-card img {
  transition: transform 0.4s ease;
}

/* ── Code block subtle glow ──────────────────────────────────────────────── */
pre:hover, .terminal:hover, .math-card:hover {
  border-color: rgba(88, 215, 255, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* ── Scroll-triggered fade (works with GSAP but also standalone) ─────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Loading skeleton shimmer ────────────────────────────────────────────── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.loading {
  background: linear-gradient(90deg,
    rgba(88, 215, 255, 0.04) 25%,
    rgba(88, 215, 255, 0.08) 50%,
    rgba(88, 215, 255, 0.04) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s ease infinite;
}

/* ── Smooth scroll behavior ──────────────────────────────────────────────── */
html {
  scroll-behavior: smooth;
}

/* ── Selection color ─────────────────────────────────────────────────────── */
::selection {
  background: rgba(88, 215, 255, 0.25);
  color: #e9f0ec;
}

/* ── Scrollbar styling (Webkit) ──────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(151, 190, 181, 0.15);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(151, 190, 181, 0.3);
}

/* ── Responsive touch targets ────────────────────────────────────────────── */
@media (max-width: 640px) {
  button, .btn, .filter-btn, .tab-btn, .algo-tab {
    min-height: 44px;
    min-width: 44px;
  }
  .tag, .badge, .htag {
    padding: 4px 10px;
    font-size: 0.72rem;
  }
}

/* ── Scroll progress bar ────────────────────────────────────────────────── */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #58d7ff, #7bf0be, #b59cff);
  z-index: 9999;
  transition: width 0.05s linear;
  pointer-events: none;
}

/* ── Page load transition ───────────────────────────────────────────────── */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--bg, #080c10);
  z-index: 99999;
  opacity: 1;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.page-transition.done {
  opacity: 0;
}

/* ── Card tilt glow effect ──────────────────────────────────────────────── */
.explore-card,
.chart-card,
.metric-card,
.work-card,
.service-card {
  position: relative;
  overflow: hidden;
}
.explore-card::after,
.chart-card::after,
.metric-card::after,
.work-card::after,
.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(
    400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(88, 215, 255, 0.06),
    transparent 60%
  );
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.explore-card:hover::after,
.chart-card:hover::after,
.metric-card:hover::after,
.work-card:hover::after,
.service-card:hover::after {
  opacity: 1;
}

/* ── Keyboard shortcuts overlay ─────────────────────────────────────────── */
#shortcuts-overlay {
  position: fixed;
  inset: 0;
  z-index: 99998;
  background: rgba(8, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
#shortcuts-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.shortcuts-box {
  background: var(--bg2, #111922);
  border: 1px solid var(--border, rgba(151, 190, 181, 0.1));
  border-radius: 16px;
  padding: 28px 36px;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.shortcuts-box h3 {
  margin: 0 0 18px;
  font-size: 1rem;
  color: var(--text, #e9f0ec);
}
.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(151, 190, 181, 0.06);
}
.shortcut-row:last-child {
  border-bottom: none;
}
.shortcut-label {
  color: var(--muted, #94a59f);
  font-size: 0.84rem;
}
.shortcut-keys {
  display: flex;
  gap: 4px;
}
.shortcut-key {
  background: rgba(88, 215, 255, 0.08);
  border: 1px solid rgba(88, 215, 255, 0.15);
  color: var(--teal, #58d7ff);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: "JetBrains Mono", monospace;
}

/* ── Chatbot quick replies ──────────────────────────────────────────────── */
.chat-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 16px 4px;
}
.chat-quick-btn {
  background: rgba(88, 215, 255, 0.08);
  border: 1px solid rgba(88, 215, 255, 0.15);
  color: var(--teal, #58d7ff);
  padding: 5px 12px;
  border-radius: 16px;
  font-size: 0.75rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s;
}
.chat-quick-btn:hover {
  background: rgba(88, 215, 255, 0.15);
  border-color: rgba(88, 215, 255, 0.3);
}

/* ── Live stats bar ─────────────────────────────────────────────────────── */
.live-stats-bar {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  padding: 20px 24px;
  background: var(--surface, rgba(18, 26, 33, 0.92));
  border: 1px solid var(--border, rgba(151, 190, 181, 0.1));
  border-radius: 12px;
  margin-top: 24px;
}
.live-stat {
  text-align: center;
}
.live-stat .live-val {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--teal, #58d7ff);
  font-family: "JetBrains Mono", monospace;
}
.live-stat .live-lbl {
  font-size: 0.72rem;
  color: var(--muted, #94a59f);
  margin-top: 2px;
}
@keyframes countUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.live-stat.loaded .live-val {
  animation: countUp 0.4s ease forwards;
}
@media (max-width: 640px) {
  .live-stats-bar { gap: 16px; padding: 16px; }
  .live-stat .live-val { font-size: 1.1rem; }
}

/* ── Weather widget ─────────────────────────────────────────────────────── */
.weather-widget {
  position: absolute;
  top: calc(var(--nav-h, 64px) + 12px);
  right: 24px;
  z-index: 10;
  background: rgba(18, 26, 33, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(151, 190, 181, 0.1);
  border-radius: 10px;
  padding: 6px 14px;
  font-size: 0.78rem;
  color: var(--muted, #94a59f);
  opacity: 0;
  transition: opacity 0.4s ease;
  display: flex;
  align-items: center;
  gap: 4px;
}
.weather-widget.loaded {
  opacity: 1;
}
.weather-icon {
  font-size: 1.2rem;
}
.weather-text {
  font-family: "JetBrains Mono", monospace;
  color: var(--text, #e9f0ec);
}
@media (max-width: 640px) {
  .weather-widget { top: calc(var(--nav-h, 64px) + 8px); right: 12px; font-size: 0.7rem; }
}

/* ── Unsplash hero background ───────────────────────────────────────────── */
.hero-canvas.unsplash-loaded {
  transition: background-image 0.8s ease;
}

/* ── Toast notifications ────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  top: calc(var(--nav-h, 64px) + 12px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 99997;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--surface, rgba(18, 26, 33, 0.95));
  border: 1px solid var(--border, rgba(151, 190, 181, 0.15));
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 0.82rem;
  color: var(--text, #e9f0ec);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: auto;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}
.toast-error {
  border-color: rgba(232, 64, 64, 0.4);
  color: #ff6b6b;
}
.toast-success {
  border-color: rgba(123, 240, 190, 0.4);
  color: #7bf0be;
}
.toast-info {
  border-color: rgba(88, 215, 255, 0.3);
}

/* ═════════════════════════════════════════════════════════════════════════
   2026 Design Refresh — unified tokens + global visual upgrade
   ═════════════════════════════════════════════════════════════════════════ */
:root {
  --accent-cyan: #00e5ff;
  --accent-pink: #ff2d95;
  --accent-purple: #a855f7;
  --accent-mint: #22ffa7;
  --accent-amber: #fde047;
  --accent-rose: #ff8392;
  --bg-0: #04020c;
  --bg-1: #0a0420;
  --bg-2: #0f1020;
  --surface-1: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --surface-hi: rgba(255, 255, 255, 0.09);
  --hairline: rgba(255, 255, 255, 0.08);
  --hairline-hi: rgba(0, 229, 255, 0.35);
  --ink-1: #edf1ff;
  --ink-2: #a8b0cc;
  --ink-3: #6b7399;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3), 0 2px 6px rgba(0,0,0,.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,.35), 0 8px 24px rgba(0,0,0,.25);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.4), 0 24px 60px rgba(0,0,0,.3);
  --shadow-glow-cyan: 0 0 24px rgba(0,229,255,.18);
  --shadow-glow-pink: 0 0 24px rgba(255,45,149,.18);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 140ms;
  --dur: 260ms;
  --dur-slow: 520ms;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-pill: 9999px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 600px at 15% -10%, var(--bg-g1, rgba(255,45,149,0.14)), transparent 50%),
    radial-gradient(1000px 700px at 110% 110%, var(--bg-g2, rgba(0,229,255,0.12)), transparent 55%),
    radial-gradient(600px 400px at 60% 40%, var(--bg-g3, rgba(168,85,247,0.08)), transparent 60%);
  pointer-events: none;
  z-index: -2;
  transition: background 800ms ease;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 85%);
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 85%);
  pointer-events: none;
  z-index: -1;
}

html { font-feature-settings: "cv11", "ss01"; }
h1, h2, h3, h4 { letter-spacing: -0.015em; }
h1 { letter-spacing: -0.02em; }

::selection {
  background: rgba(0, 229, 255, 0.3);
  color: var(--ink-1);
}

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(0,229,255,0.3), rgba(168,85,247,0.3));
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(0,229,255,0.6), rgba(168,85,247,0.6));
  background-clip: padding-box;
}

.btn:hover, .btn-primary:hover, .btn-outline:hover,
a.btn:hover, a.btn-primary:hover, a.btn-outline:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), var(--shadow-glow-cyan);
}

.explore-card:hover, .work-card:hover, .chart-card:hover,
.platform-card:hover, .service-card:hover,
.demo-context-card:hover, .demo-flow-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
  border-color: var(--hairline-hi);
}

hr.divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline-hi), transparent);
  margin: 48px auto;
  max-width: 80%;
}

.hero-title .grad, .section-title .grad {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 50%, var(--accent-pink) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradShift 8s linear infinite;
}
@keyframes gradShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.live-dot {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-mint);
  margin-right: 8px;
  box-shadow: 0 0 0 0 rgba(34, 255, 167, 0.7);
  animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(34,255,167,0.7); }
  70% { box-shadow: 0 0 0 10px rgba(34,255,167,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,255,167,0); }
}

input:focus, textarea:focus, select:focus {
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.15);
  transition: box-shadow var(--dur) var(--ease-out);
}

@media print {
  body::before, body::after { display: none; }
}