/* ============================================================
   sshindai — showcase
   dark / cinematic / mysterious reel
   ============================================================ */

:root {
  --bg: #010102;
  --bg-soft: #050507;
  --text: #e9e9ef;
  --muted: #6f6f7c;
  --faint: #3f3f49;
  --line: rgba(255, 255, 255, 0.05);
  --line-strong: rgba(255, 255, 255, 0.10);
  --glass: rgba(10, 10, 14, 0.6);
  --glass-hover: rgba(16, 16, 22, 0.78);
  --accent: #8072e0;        /* cold violet, muted */
  --accent-2: #4ba8c9;      /* faint cyan, muted */
  --accent-glow: rgba(128, 114, 224, 0.28);
  --radius: 18px;
  --radius-lg: 26px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
}

@media (hover: none) { body { cursor: auto; } }

::selection { background: var(--accent-glow); color: #fff; }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; }

/* ----------------------------------------------------------
   atmosphere layers
   ---------------------------------------------------------- */
.bg-void,
.bg-grid,
.bg-aurora,
.bg-particles,
.bg-grain,
.bg-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.bg-void { background: radial-gradient(circle at 50% -10%, #07070d 0%, #030305 55%, #000000 100%); }

.bg-grid {
  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: 64px 64px;
  mask-image: radial-gradient(circle at 50% 35%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 35%, #000 0%, transparent 75%);
  animation: gridDrift 40s linear infinite;
}

@keyframes gridDrift { to { background-position: 64px 64px; } }

.bg-aurora {
  background:
    radial-gradient(40% 35% at 22% 18%, rgba(128, 114, 224, 0.10), transparent 60%),
    radial-gradient(38% 32% at 80% 30%, rgba(75, 168, 201, 0.06), transparent 60%),
    radial-gradient(45% 40% at 55% 88%, rgba(128, 114, 224, 0.06), transparent 65%);
  filter: blur(10px);
  animation: auroraShift 18s ease-in-out infinite alternate;
}

@keyframes auroraShift {
  0%   { transform: translate3d(-2%, -1%, 0) scale(1.05); opacity: 0.4; }
  100% { transform: translate3d(3%, 2%, 0) scale(1.15); opacity: 0.65; }
}

.bg-particles { z-index: -1; }
.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: rgba(255, 255, 255, 0.45);
  border-radius: 50%;
  opacity: 0;
  box-shadow: 0 0 5px rgba(255, 255, 255, 0.35);
  animation: float linear infinite;
}
@keyframes float {
  0%   { transform: translateY(0); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.4; }
  100% { transform: translateY(-120vh); opacity: 0; }
}

.bg-grain {
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.6s steps(3) infinite;
  mix-blend-mode: overlay;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); }
  33% { transform: translate(-2%, 1%); }
  66% { transform: translate(2%, -1%); }
}

.bg-vignette {
  background: radial-gradient(circle at 50% 42%, transparent 42%, rgba(0,0,0,0.88) 100%);
}

/* ----------------------------------------------------------
   custom cursor
   ---------------------------------------------------------- */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}
.cursor-dot { width: 6px; height: 6px; background: #fff; }
.cursor-ring {
  width: 34px; height: 34px;
  border: 1px solid rgba(255,255,255,0.6);
  transition: width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s;
}
.cursor-ring.is-active {
  width: 56px; height: 56px;
  border-color: var(--accent);
}
@media (hover: none) { .cursor-dot, .cursor-ring { display: none; } }

/* scroll progress */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 200;
  background: rgba(255,255,255,0.06);
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--accent-glow);
}

/* ----------------------------------------------------------
   nav
   ---------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 60px);
  backdrop-filter: blur(0px);
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease), padding 0.4s var(--ease), border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(5,5,7,0.6);
  backdrop-filter: blur(14px);
  padding-top: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.nav__brand { display: flex; align-items: center; gap: 12px; }
.nav__mark {
  display: grid; place-items: center;
  width: 32px; height: 32px;
  font-family: var(--font-display);
  font-weight: 700;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--glass);
  box-shadow: inset 0 0 14px rgba(154,140,255,0.18);
}
.nav__name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.nav__links { display: flex; align-items: center; gap: clamp(14px, 3vw, 34px); }
.nav__link {
  position: relative;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: none;
  transition: color 0.3s;
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 1px; background: var(--accent);
  transition: width 0.3s var(--ease);
}
.nav__link:hover { color: var(--text); }
.nav__link:hover::after { width: 100%; }
@media (max-width: 560px) { .nav__name { display: none; } }

/* ----------------------------------------------------------
   reel — pure playlist of work
   ---------------------------------------------------------- */
.reel {
  padding: clamp(96px, 15vh, 150px) clamp(20px, 6vw, 90px) 110px;
  max-width: 1100px;
  margin: 0 auto;
}
.reel__list { display: flex; flex-direction: column; gap: clamp(44px, 9vh, 90px); }

.reel-card { min-width: 0; }

.reel-card__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(9,9,13,0.95), rgba(2,2,4,0.98));
  box-shadow: var(--shadow, 0 30px 80px rgba(0,0,0,0.7));
  transition: transform 0.6s var(--ease), border-color 0.5s, box-shadow 0.5s;
}
.reel-card.is-playing .reel-card__frame {
  border-color: rgba(154,140,255,0.4);
  box-shadow: 0 40px 100px rgba(0,0,0,0.6), 0 0 0 1px rgba(154,140,255,0.2), 0 0 60px rgba(154,140,255,0.18);
}
.reel-card__frame iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
  opacity: 0;
  transition: opacity 0.8s var(--ease);
}
.reel-card__frame.is-loaded iframe { opacity: 1; }

.reel-card__placeholder {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  gap: 16px;
  text-align: center;
  transition: opacity 0.6s var(--ease);
}
.reel-card__frame.is-loaded .reel-card__placeholder { opacity: 0; }
.reel-card__shimmer {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.12);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.reel-card__placeholder span {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--faint);
}

.reel-card__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.reel-card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.05rem, 2.4vw, 1.5rem);
  letter-spacing: 0.01em;
  text-transform: capitalize;
}
.reel-card__tag {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

/* ----------------------------------------------------------
   footer
   ---------------------------------------------------------- */
.foot {
  border-top: 1px solid var(--line);
  padding: 60px clamp(20px, 6vw, 90px);
  background: rgba(0,0,0,0.4);
}
.foot__inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.foot__mark {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.foot__links { display: flex; gap: clamp(16px, 3vw, 34px); flex-wrap: wrap; }
.foot__link {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: none;
  transition: color 0.3s;
}
.foot__link:hover { color: var(--accent); }
.foot__year { color: var(--faint); font-size: 0.82rem; }

/* ----------------------------------------------------------
   reveal animation
   ---------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

.reel-card {
  opacity: 0;
  transform: translateY(60px) scale(0.985);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reel-card.is-in { opacity: 1; transform: none; }

/* toast */
.toast {
  position: fixed;
  bottom: 28px; left: 50%;
  transform: translate(-50%, 30px);
  background: var(--glass-hover);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 12px 24px;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  opacity: 0;
  pointer-events: none;
  z-index: 500;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.toast.is-show { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal], .reel-card { opacity: 1; transform: none; }
}