/* ============================================================
   DONGRI://2089 — Holographic Spatial Interface
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');

:root {
  --void: #030014;
  --ink: #e8f6ff;
  --cyan: #00f0ff;
  --violet: #a06bff;
  --mint: #5dffc3;
  --rose: #ff5da2;
  --panel: rgba(10, 20, 48, 0.55);
  --edge: rgba(0, 240, 255, 0.35);
}

* { box-sizing: border-box; }

/* ---------- deep space backdrop ---------- */

body {
  margin: 0;
  min-height: 100vh;
  padding: 24px 16px 60px;
  background-color: var(--void);
  color: var(--ink);
  font-family: 'Share Tech Mono', monospace;
  text-align: center;
  overflow-x: hidden;
  position: relative;
}

/* drifting aurora nebulae */
body::before {
  content: "";
  position: fixed;
  inset: -50%;
  z-index: -2;
  background:
    radial-gradient(40% 35% at 25% 30%, rgba(0, 240, 255, 0.14), transparent 70%),
    radial-gradient(35% 40% at 75% 25%, rgba(160, 107, 255, 0.16), transparent 70%),
    radial-gradient(45% 40% at 60% 80%, rgba(93, 255, 195, 0.10), transparent 70%),
    radial-gradient(30% 30% at 15% 85%, rgba(255, 93, 162, 0.10), transparent 70%);
  animation: nebula 24s ease-in-out infinite alternate;
}

@keyframes nebula {
  0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
  50%  { transform: translate(4%, -3%) rotate(3deg) scale(1.08); }
  100% { transform: translate(-4%, 3%) rotate(-3deg) scale(1.02); }
}

/* starfield + scanlines */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 80% 20%, rgba(0,240,255,0.8), transparent),
    radial-gradient(1px 1px at 35% 80%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 90% 60%, rgba(160,107,255,0.7), transparent),
    radial-gradient(1px 1px at 50% 15%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 10% 55%, rgba(93,255,195,0.6), transparent),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.018) 0 1px, transparent 1px 3px);
  background-size: 100% 100%;
  animation: twinkle 6s ease-in-out infinite alternate;
}

@keyframes twinkle {
  from { opacity: 0.55; }
  to   { opacity: 1; }
}

/* ---------- typography ---------- */

h1, h2, h3 {
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 0.12em;
  text-transform: none;
  margin: 0.6em auto;
}

h1 { font-size: clamp(22px, 4.5vw, 40px); }

a:link, a:visited {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 240, 255, 0.3);
  transition: all 0.25s ease;
}

a:hover {
  color: var(--void);
  background: var(--cyan);
  border-bottom-color: var(--cyan);
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.8);
  text-shadow: none;
}

hr {
  border: none;
  height: 1px;
  margin: 28px auto;
  max-width: 540px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.5);
}

small { color: rgba(232, 246, 255, 0.65); }

/* ---------- legacy class remap: 90s → 2089 ---------- */

/* rainbow → liquid hologram gradient */
.rainbow {
  font-weight: 700;
  background: linear-gradient(100deg,
    var(--cyan) 0%, var(--mint) 25%, var(--violet) 50%, var(--rose) 75%, var(--cyan) 100%);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--cyan);
  animation: holoflow 5s linear infinite;
  filter: drop-shadow(0 0 14px rgba(0, 240, 255, 0.35));
}

@keyframes holoflow {
  to { background-position: 300% 0; }
}

/* blink → soft quantum pulse */
.blink { animation: qpulse 2.4s ease-in-out infinite; }

@keyframes qpulse {
  0%, 100% { opacity: 1; text-shadow: 0 0 10px currentColor; }
  50%      { opacity: 0.45; text-shadow: 0 0 2px currentColor; }
}

/* fire → plasma */
.fire {
  color: var(--rose);
  font-weight: bold;
  text-shadow: 0 0 8px rgba(255, 93, 162, 0.9), 0 0 24px rgba(160, 107, 255, 0.6);
}

/* glow → neon */
.glow {
  color: #fff;
  text-shadow: 0 0 6px var(--cyan), 0 0 18px rgba(0, 240, 255, 0.7);
}

/* ---------- glass panels with HUD corner brackets ---------- */

.signpost, .box {
  position: relative;
  display: inline-block;
  margin: 14px auto;
  padding: 22px 28px;
  width: min(640px, 92vw);
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 14px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 0 30px rgba(0, 240, 255, 0.08),
    0 18px 40px rgba(0, 0, 0, 0.5);
  animation: floatin 0.9s ease both, hover 7s ease-in-out 1s infinite alternate;
}

@keyframes floatin {
  from { opacity: 0; transform: translateY(18px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes hover {
  from { transform: translateY(0); }
  to   { transform: translateY(-5px); }
}

/* HUD corner brackets */
.signpost::before, .signpost::after,
.box::before, .box::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.signpost::before, .box::before {
  top: -2px; left: -2px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  border-top-left-radius: 10px;
  filter: drop-shadow(0 0 6px var(--cyan));
}

.signpost::after, .box::after {
  bottom: -2px; right: -2px;
  border-bottom: 2px solid var(--violet);
  border-right: 2px solid var(--violet);
  border-bottom-right-radius: 10px;
  filter: drop-shadow(0 0 6px var(--violet));
}

/* ---------- data tables → holo readouts ---------- */

table {
  margin: 0 auto;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 12px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.07), 0 12px 30px rgba(0, 0, 0, 0.45);
}

td, th {
  border: none;
  border-bottom: 1px solid rgba(0, 240, 255, 0.12);
  padding: 9px 22px;
  color: var(--ink);
  text-align: left;
}

tr:last-child td { border-bottom: none; }

td:last-child {
  color: var(--mint);
  text-shadow: 0 0 8px rgba(93, 255, 195, 0.5);
  text-align: right;
}

tr:hover td { background: rgba(0, 240, 255, 0.06); }

@keyframes huecycle {
  to { filter: hue-rotate(360deg); }
}

/* ---------- nav bar ---------- */

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 6px auto 26px;
}

.nav a {
  padding: 9px 18px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background: rgba(0, 240, 255, 0.04);
  color: var(--ink);
  letter-spacing: 0.08em;
  transition: all 0.25s ease;
}

.nav a:hover {
  background: rgba(0, 240, 255, 0.14);
  color: #fff;
  border-color: var(--cyan);
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
  transform: translateY(-2px);
  text-shadow: 0 0 8px var(--cyan);
}

.nav a.active {
  border-color: var(--cyan);
  background: rgba(0, 240, 255, 0.14);
  color: #fff;
  text-shadow: 0 0 8px var(--cyan);
}

/* external links open in a new tab */
.nav a[target="_blank"]::after,
.cta::after {
  content: " ⧉";
  font-size: 0.85em;
  color: var(--violet);
}

/* ---------- CTA button ---------- */

a.cta {
  display: inline-block;
  padding: 14px 32px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #fff;
  border: 1px solid var(--cyan);
  border-radius: 999px;
  background: linear-gradient(100deg, rgba(0, 240, 255, 0.16), rgba(160, 107, 255, 0.16));
  box-shadow: 0 0 22px rgba(0, 240, 255, 0.25);
  text-shadow: 0 0 8px var(--cyan);
  transition: all 0.25s ease;
}

a.cta:hover {
  color: #fff;
  background: linear-gradient(100deg, rgba(0, 240, 255, 0.3), rgba(160, 107, 255, 0.3));
  box-shadow: 0 0 34px rgba(0, 240, 255, 0.55);
  transform: translateY(-2px);
}

/* ---------- avatar ---------- */

.avatar-holo {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  padding: 3px;
  animation: hover 5s ease-in-out infinite alternate;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
}

.avatar-holo::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--cyan), var(--violet), var(--rose), var(--mint), var(--cyan));
  animation: huecycle 6s linear infinite;
}

.avatar-holo img {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: block;
  background: var(--void);
}