/* ===================================================
   STACK POINT DEV — AI SITE SHARED STYLES
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ── CSS Variables ─────────────────────────────── */
:root {
  --bg-primary:   #020408;
  --bg-secondary: #060d1a;
  --bg-card:      rgba(6, 20, 40, 0.7);
  --accent-cyan:  #00d4ff;
  --accent-purple:#7b2ff7;
  --accent-pink:  #ff2d7e;
  --accent-green: #00ff88;
  --glass-bg:     rgba(255,255,255,0.04);
  --glass-border: rgba(0,212,255,0.18);
  --glass-hover:  rgba(0,212,255,0.08);
  --text-primary: #ffffff;
  --text-secondary:#a0b8d0;
  --text-muted:   #4a6a8a;
  --nav-height:   72px;
  --glow-cyan:    0 0 20px rgba(0,212,255,0.5), 0 0 60px rgba(0,212,255,0.2);
  --glow-purple:  0 0 20px rgba(123,47,247,0.5), 0 0 60px rgba(123,47,247,0.2);
  --transition:   all 0.35s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  max-width: 100vw;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Custom Scrollbar ───────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 3px;
}


/* ── Loading Screen ─────────────────────────────── */
#loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
#loading-screen.hidden { opacity: 0; visibility: hidden; }

.loading-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.logo-icon-load {
  width: 80px; height: 80px;
  animation: loadPulse 1.5s ease-in-out infinite;
}
.loading-brand {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan);
}
.loading-sub {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.loading-bar-wrap {
  width: 260px;
  height: 2px;
  background: rgba(0,212,255,0.15);
  border-radius: 2px;
  overflow: hidden;
}
.loading-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
  border-radius: 2px;
  animation: loadBar 2.2s ease forwards;
  box-shadow: var(--glow-cyan);
}
.loading-pct {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 0.2em;
}

@keyframes loadBar { 0%{width:0%} 100%{width:100%} }
@keyframes loadPulse {
  0%,100%{ filter: drop-shadow(0 0 8px var(--accent-cyan)); transform: scale(1); }
  50%{ filter: drop-shadow(0 0 24px var(--accent-cyan)); transform: scale(1.08); }
}

/* ── Canvas Background ──────────────────────────── */
#bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Grid Lines Background ──────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
  0%  { background-position: 0 0, 0 0; }
  100%{ background-position: 0 60px, 60px 0; }
}

/* ── Navigation ─────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(2,4,8,0.6);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  border-bottom: 1px solid rgba(0,212,255,0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  transition: var(--transition);
}
.nav.scrolled {
  background: rgba(2,4,8,0.9);
  border-bottom-color: rgba(0,212,255,0.25);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.nav-logo-icon { width: 40px; height: 40px; }
.nav-logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
}
.nav-logo-main {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  text-shadow: 0 0 12px rgba(0,212,255,0.5);
}
.nav-logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  z-index: 1;
}
.nav-link {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  position: relative;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%; right: 50%;
  height: 1px;
  background: var(--accent-cyan);
  transition: var(--transition);
  box-shadow: var(--glow-cyan);
}
.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
  background: rgba(0,212,255,0.07);
}
.nav-link:hover::after, .nav-link.active::after {
  left: 0.85rem; right: 0.85rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: rgba(2,4,8,0.97);
  backdrop-filter: blur(24px);
  padding: 1.5rem;
  flex-direction: column;
  gap: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
  z-index: 999;
}
.nav-mobile.open { display: flex; }
.nav-mobile .nav-link {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  border-radius: 8px;
}

/* ── Page Wrapper ───────────────────────────────── */
.page-wrap {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding-top: var(--nav-height);
}

/* ── Section Base ───────────────────────────────── */
.section {
  padding: 5rem 2.5rem;
  max-width: 1300px;
  margin: 0 auto;
}
.section-sm { padding: 3rem 2.5rem; max-width: 1300px; margin: 0 auto; }

/* ── Section Label ──────────────────────────────── */
.section-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  opacity: 0.8;
}
.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.section-title .highlight {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 650px;
  line-height: 1.75;
}

/* ── Glass Card ─────────────────────────────────── */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.05) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
}
.glass-card:hover {
  border-color: rgba(0,212,255,0.4);
  box-shadow: 0 8px 40px rgba(0,212,255,0.12), inset 0 0 40px rgba(0,212,255,0.03);
  transform: translateY(-4px);
}
.glass-card:hover::before { opacity: 1; }

/* ── Buttons ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
}
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #006aff);
  color: #000;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0,212,255,0.3);
}
.btn-primary:hover {
  box-shadow: 0 8px 40px rgba(0,212,255,0.5);
  transform: translateY(-2px);
}
.btn-primary::before { background: rgba(255,255,255,0.1); }

.btn-outline {
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid rgba(0,212,255,0.4);
}
.btn-outline:hover {
  background: rgba(0,212,255,0.1);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0,212,255,0.2);
  transform: translateY(-2px);
}
.btn-outline::before { background: rgba(0,212,255,0.05); }

.btn-ghost {
  background: rgba(123,47,247,0.15);
  color: #bf88ff;
  border: 1px solid rgba(123,47,247,0.3);
}
.btn-ghost:hover {
  background: rgba(123,47,247,0.25);
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(123,47,247,0.3);
  transform: translateY(-2px);
}

/* ── Stat Card ──────────────────────────────────── */
.stat-card {
  text-align: center;
  padding: 2rem 1.5rem;
}
.stat-num {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  line-height: 1;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ── Grid Layouts ───────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.5rem; }
/* Responsive utility grid — used for inline-styled stat grids */
.resp-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.5rem; }

/* ── Divider ────────────────────────────────────── */
.glow-divider {
  width: 80px; height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 2px;
  margin: 1.5rem 0;
  box-shadow: 0 0 12px rgba(0,212,255,0.4);
}

/* ── Footer ─────────────────────────────────────── */
.footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(0,212,255,0.12);
  background: linear-gradient(0deg, rgba(0,0,0,0.8) 0%, transparent 100%);
  padding: 3rem 2.5rem 2rem;
  margin-top: 5rem;
}
.footer-inner {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}
.footer-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.footer-logo-icon { width: 60px; height: 60px; filter: drop-shadow(0 0 16px var(--accent-cyan)); }
.footer-brand {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan);
}
.footer-brand-sub {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.footer-socials {
  display: flex;
  gap: 1rem;
}
.footer-social {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-social:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0,212,255,0.4);
  transform: translateY(-3px);
}
.footer-copy {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-align: center;
}
.footer-copy span {
  color: var(--accent-cyan);
}

/* ── Page Transition ────────────────────────────── */
.page-transition {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-primary), rgba(0,212,255,0.1));
  z-index: 5000;
  transform: translateY(100%);
  pointer-events: none;
}

/* ── Neon Text ──────────────────────────────────── */
.neon-cyan {
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(0,212,255,0.7), 0 0 30px rgba(0,212,255,0.3);
}
.neon-purple {
  color: #bf88ff;
  text-shadow: 0 0 10px rgba(123,47,247,0.7), 0 0 30px rgba(123,47,247,0.3);
}

/* ── Animated Gradient Border ───────────────────── */
.border-glow {
  position: relative;
}
.border-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
}
.border-glow:hover::before { opacity: 1; }

/* ── Floating Animation ─────────────────────────── */
@keyframes float {
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-12px); }
}
@keyframes floatSlow {
  0%,100%{ transform: translateY(0) rotate(0deg); }
  50%{ transform: translateY(-18px) rotate(3deg); }
}
@keyframes pulse-glow {
  0%,100%{ box-shadow: 0 0 10px rgba(0,212,255,0.3); }
  50%{ box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 0 60px rgba(0,212,255,0.2); }
}
@keyframes scanLine {
  0%  { transform: translateY(-100%); }
  100%{ transform: translateY(100vh); }
}
@keyframes rotate3d {
  from{ transform: rotateY(0deg); }
  to{ transform: rotateY(360deg); }
}
@keyframes fadeInUp {
  from{ opacity:0; transform:translateY(40px); }
  to{ opacity:1; transform:translateY(0); }
}
@keyframes fadeInLeft {
  from{ opacity:0; transform:translateX(-40px); }
  to{ opacity:1; transform:translateX(0); }
}
@keyframes shimmer {
  0%{ background-position: -200% center; }
  100%{ background-position: 200% center; }
}

/* ── Scan Line Effect ───────────────────────────── */
.scan-line {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0.15;
  z-index: 1;
  animation: scanLine 8s linear infinite;
  pointer-events: none;
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .resp-grid { grid-template-columns: repeat(2,1fr); }
  .nav-links { gap: 0; }
  .nav-link { font-size: 0.78rem; padding: 0.4rem 0.65rem; }
}
@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .nav { padding: 0 1.25rem; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-logo-main { font-size: 0.78rem; letter-spacing: 0.1em; }
  .section { padding: 3rem 1.25rem; }
  .section-sm { padding: 2rem 1.25rem; }
  .grid-2, .grid-3, .grid-4, .resp-grid { grid-template-columns: 1fr; }
  .section-title { font-size: clamp(1.5rem, 5vw, 2.2rem); }
  .stat-card { padding: 1.5rem 1rem; }
  .stat-num { font-size: clamp(1.6rem, 5vw, 2.2rem); }
  .btn { padding: 0.75rem 1.5rem; font-size: 0.82rem; min-height: 44px; }
  .glass-card { padding: 1.5rem; }
  .footer { padding: 2.5rem 1.25rem 1.5rem; }
  .footer-socials { gap: 0.6rem; flex-wrap: wrap; justify-content: center; }
  .footer-brand { font-size: 0.95rem; }
  .nav-mobile .nav-link { font-size: 0.88rem; }
  .section-desc { font-size: 0.95rem; }
}
@media (max-width: 480px) {
  :root { --nav-height: 60px; }
  .nav { padding: 0 1rem; }
  .nav-logo-icon { width: 32px !important; height: 32px !important; }
  .nav-logo-main { font-size: 0.68rem; letter-spacing: 0.08em; }
  .nav-logo-sub { font-size: 0.52rem; }
  .footer { padding: 2rem 1rem 1.25rem; }
  .section { padding: 2.5rem 1rem; }
  .section-title { font-size: clamp(1.3rem, 5vw, 1.8rem); }
  .btn { width: 100%; justify-content: center; max-width: 340px; min-height: 44px; }
  .glow-divider { margin: 1rem 0; }
  .glass-card { padding: 1.25rem; }
  .stats-inner { gap: 0.75rem; }
  .stat-card { padding: 1.25rem 0.75rem; }
  .section-desc { font-size: 0.88rem; }
  .resp-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
}
@media (max-width: 360px) {
  .section { padding: 2rem 0.75rem; }
  .glass-card { padding: 1rem; }
  .btn { padding: 0.65rem 1.25rem; font-size: 0.78rem; }
  .nav-logo-sub { display: none; }
  .section-title { font-size: clamp(1.1rem, 5vw, 1.5rem); }
  .footer { padding: 1.5rem 0.75rem 1rem; }
  .resp-grid { grid-template-columns: 1fr; }
}