/* =========================================================
   NOVA — Energy Release · prototype landing
   Tokens, base, layout, components
   ========================================================= */

:root {
  --bg: #08070d;
  --bg-2: #0e0c18;
  --ink: #f6f4ef;
  --ink-dim: rgba(246, 244, 239, 0.65);
  --ink-mute: rgba(246, 244, 239, 0.45);
  --line: rgba(246, 244, 239, 0.12);
  --line-strong: rgba(246, 244, 239, 0.25);

  --accent: #ff5722;
  --accent-2: #ff2d8a;
  --accent-3: #7b5cff;
  --accent-4: #00e5ff;

  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --maxw: 1240px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
a { color: inherit; }

/* =========================================================
   Background — gradient blobs + noise
   ========================================================= */

.gradient-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(ellipse at top, #1a0f2e 0%, var(--bg) 60%);
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  mix-blend-mode: screen;
  animation: floaty 22s ease-in-out infinite;
}
.blob-1 { width: 540px; height: 540px; background: var(--accent); top: -120px; left: -80px; }
.blob-2 { width: 620px; height: 620px; background: var(--accent-3); top: 30%; right: -160px; animation-delay: -7s; }
.blob-3 { width: 480px; height: 480px; background: var(--accent-2); bottom: -160px; left: 30%; animation-delay: -14s; }

@keyframes floaty {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%      { transform: translate(40px,-30px) scale(1.08); }
  66%      { transform: translate(-30px,40px) scale(0.95); }
}

.noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* =========================================================
   Header
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 4vw, 48px);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(8, 7, 13, 0.5);
  border-bottom: 1px solid var(--line);
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.12em;
}
.logo-mark {
  color: var(--accent);
  font-size: 22px;
  animation: spin 14s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

.nav { display: flex; gap: 24px; }
.nav a {
  text-decoration: none;
  color: var(--ink-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s;
}
.nav a:hover { color: var(--ink); }
@media (max-width: 640px) { .nav { display: none; } }

/* =========================================================
   Hero
   ========================================================= */

.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(40px, 8vw, 96px) clamp(20px, 4vw, 48px) clamp(60px, 10vw, 120px);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}

/* Prevent the text column from overflowing and squishing hero-art */
.hero-text {
  min-width: 0;
  overflow: hidden;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 64px; }
  .hero-text { overflow: visible; }
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  margin-bottom: 24px;
}

.title {
  font-family: var(--font-display);
  /* Cap at 110px on desktop so the Alfa Slab "ENERGY" line
     doesn't overflow the left column and squish hero-art */
  font-size: clamp(48px, 8vw, 110px);
  line-height: 0.88;
  letter-spacing: -0.04em;
  font-weight: 700;
  margin: 0 0 28px;
}

@media (max-width: 900px) {
  .title { font-size: clamp(64px, 14vw, 120px); }
}
.title-line { display: block; }
.title-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
}

/* Chunky retro "ENERGY" — yellow fill with a stacked red 3D extrude.
   Palette sampled from images/energycover.PNG.
   Offsets are in em so the depth scales with the title's font-size. */
.title-energy {
  display: inline-block;
  transform-origin: left bottom;
  font-family: "Alfa Slab One", Georgia, serif;
  font-weight: 400;
  color: #ecab33;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1;
  margin-top: 0.08em;
  text-shadow:
    0.018em 0.018em 0 #c41e1e,
    0.036em 0.036em 0 #c41e1e,
    0.054em 0.054em 0 #b71c1c,
    0.072em 0.072em 0 #b71c1c,
    0.09em  0.09em  0 #a01818,
    0.108em 0.108em 0 #a01818,
    0.126em 0.126em 0 #8a1414,
    0.144em 0.144em 0 #8a1414,
    0.16em  0.16em  0.02em rgba(0, 0, 0, 0.45);
  animation:
    energy-enter 0.8s cubic-bezier(0.22, 1, 0.36, 1) both,
    energy-glow 2.6s ease-in-out 0.8s infinite;
}

@keyframes energy-enter {
  from {
    opacity: 0.88;
    transform: scale(0.97) translateY(0.06em);
    text-shadow:
      0.01em 0.01em 0 #c41e1e,
      0.022em 0.022em 0 #c41e1e,
      0.034em 0.034em 0 #b71c1c,
      0.046em 0.046em 0 #b71c1c,
      0.058em 0.058em 0 #a01818,
      0.07em 0.07em 0 #a01818,
      0.082em 0.082em 0 #8a1414,
      0.094em 0.094em 0 #8a1414,
      0.106em 0.106em 0.01em rgba(0, 0, 0, 0.35);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
    text-shadow:
      0.018em 0.018em 0 #c41e1e,
      0.036em 0.036em 0 #c41e1e,
      0.054em 0.054em 0 #b71c1c,
      0.072em 0.072em 0 #b71c1c,
      0.09em  0.09em  0 #a01818,
      0.108em 0.108em 0 #a01818,
      0.126em 0.126em 0 #8a1414,
      0.144em 0.144em 0 #8a1414,
      0.16em  0.16em  0.02em rgba(0, 0, 0, 0.45);
  }
}

@keyframes energy-glow {
  0%, 100% {
    filter:
      drop-shadow(0 0 0.12em rgba(236, 171, 51, 0.15))
      drop-shadow(0 0 0.45em rgba(255, 87, 34, 0.2));
  }
  50% {
    filter:
      drop-shadow(0 0 0.22em rgba(236, 171, 51, 0.45))
      drop-shadow(0 0 0.85em rgba(255, 87, 34, 0.4));
  }
}

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

.subtitle {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--ink-dim);
  max-width: 460px;
  margin: 0 0 36px;
}

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .15s ease, background .2s, border-color .2s, color .2s, opacity .2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--ink);
  color: var(--bg);
}
.btn-primary:hover { background: #fff; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: rgba(255,255,255,0.02);
}
.btn-ghost:hover { background: rgba(255,255,255,0.06); border-color: var(--ink); }
.btn-ghost:disabled { opacity: 0.4; cursor: not-allowed; }

/* Hero art (sample playing cards, fanned) */
.hero-art {
  position: relative;
  height: clamp(380px, 55vw, 580px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sample-card {
  position: absolute;
  width: 58%;
  aspect-ratio: 5 / 7;
  border-radius: 22px;
  overflow: hidden;
  box-shadow:
    0 40px 80px -20px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.06);
  transition: transform 0.5s cubic-bezier(.2,.7,.2,1);
  background: #f1e8cf;
}
.sample-card svg { width: 100%; height: 100%; display: block; }

.sample-card-back {
  transform: rotate(-10deg) translateX(-18%);
  z-index: 1;
  filter: brightness(0.92);
}
.sample-card-front {
  transform: rotate(6deg) translateX(14%);
  z-index: 2;
}
.hero-art:hover .sample-card-back  { transform: rotate(-14deg) translateX(-26%); }
.hero-art:hover .sample-card-front { transform: rotate(10deg) translateX(22%); }

/* =========================================================
   Create section
   ========================================================= */

.create {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 80px) clamp(20px, 4vw, 48px);
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
  max-width: 720px;
  margin-left: auto; margin-right: auto;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 8px 0 16px;
  font-weight: 700;
}
.section-head h2 em {
  font-style: italic;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-head p { color: var(--ink-dim); font-size: 17px; }

.create-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 900px) {
  .create-grid { grid-template-columns: 1fr; }
}

.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Controls */
.controls { display: flex; flex-direction: column; gap: 22px; }

.dropzone {
  display: block;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s, transform .2s;
  color: var(--ink-dim);
}
.dropzone:hover, .dropzone.is-drag {
  border-color: var(--accent);
  background: rgba(255, 87, 34, 0.06);
  color: var(--ink);
}
.dropzone-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.dropzone-inner strong { font-size: 16px; color: var(--ink); }
.dropzone-inner span { font-size: 13px; }

.control-group { display: flex; flex-direction: column; gap: 10px; }
.control-label {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  font-weight: 600;
}
.muted { color: var(--ink-mute); text-transform: none; letter-spacing: 0; font-weight: 400; }

/* Suit + rank chips */
.suit-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.suit-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  color: var(--ink-dim);
  padding: 12px 8px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: all .2s;
}
.suit-chip svg { color: var(--suit, var(--ink-dim)); transition: color .2s; }
.suit-chip:hover { color: var(--ink); border-color: var(--line-strong); }
.suit-chip.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.suit-chip.is-active svg { color: var(--suit, var(--bg)); }
.suit-chip.is-active span { color: var(--bg); }

.rank-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.rank-chip {
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  color: var(--ink-dim);
  border-radius: 12px;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 18px;
  font-weight: 700;
  transition: all .2s;
}
.rank-chip:hover { color: var(--ink); border-color: var(--line-strong); }
.rank-chip.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.dz-tip {
  display: block;
  margin-top: 6px;
  font-size: 11px;
  font-style: italic;
  opacity: 0.6;
  letter-spacing: 0.04em;
}

/* Zoom slider + reset button */
.control-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.reset-btn {
  background: transparent;
  border: none;
  color: var(--ink-dim);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color .2s, background .2s;
}
.reset-btn:hover { color: var(--ink); background: rgba(255,255,255,0.05); }

.zoom-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 4px;
}
.zoom-icon { color: var(--ink-mute); display: inline-flex; }

#zoomInput {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  outline: none;
  cursor: pointer;
}
#zoomInput::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--accent);
  cursor: grab;
  transition: transform .15s;
}
#zoomInput::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.1); }
#zoomInput::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--accent);
  cursor: grab;
}

.hint {
  margin: 6px 2px 0;
  font-size: 12px;
  color: var(--ink-mute);
  font-style: italic;
}

#nameInput {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font: inherit;
  outline: none;
  transition: border-color .2s, background .2s;
}
#nameInput:focus { border-color: var(--accent); background: rgba(255,255,255,0.06); }
#nameInput::placeholder { color: var(--ink-mute); }

.actions { display: flex; gap: 10px; flex-wrap: wrap; }

.share-row {
  display: flex;
  gap: 10px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.share-btn {
  width: 42px; height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--ink-dim);
  text-decoration: none;
  transition: all .2s;
}
.share-btn:hover {
  color: var(--ink);
  background: rgba(255,255,255,0.09);
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

/* Preview */
.preview-panel { padding: 16px; }
.preview-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1080 / 1520;
  border-radius: var(--radius);
  overflow: hidden;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 10px, transparent 10px 20px),
    #0a0810;
  box-shadow: inset 0 0 0 1px var(--line);
}
#coverCanvas {
  width: 100%; height: 100%;
  display: block;
  cursor: default;
  touch-action: none;
}
#coverCanvas.has-image { cursor: grab; }
#coverCanvas.is-dragging { cursor: grabbing; }
.preview-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 16px);
  color: var(--ink-mute);
  pointer-events: none;
  padding: 20px;
}
.preview-empty.is-hidden { display: none; }
.preview-empty p {
  font-size: clamp(14px, 3.5vw, 16px);
  line-height: 1.4;
  margin: 0;
  text-align: center;
}
.empty-mark {
  font-size: clamp(32px, 8vw, 44px);
  color: var(--accent);
  opacity: 0.7;
  animation: spin 14s linear infinite;
}
.preview-caption {
  text-align: center;
  font-size: 12px;
  color: var(--ink-mute);
  margin: 14px 0 4px;
  letter-spacing: 0.06em;
}

/* =========================================================
   About + Footer
   ========================================================= */

.about {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(40px, 8vw, 100px) clamp(20px, 4vw, 48px);
}
.about-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.about h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 12px 0 20px;
  font-weight: 700;
}
.about p { color: var(--ink-dim); font-size: 17px; margin-bottom: 36px; }
.about .meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.about .meta > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.about .meta strong {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 600;
}
.about .meta span { font-family: var(--font-display); font-size: 18px; }

@media (max-width: 600px) {
  .about .meta { grid-template-columns: 1fr; gap: 20px; }
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px clamp(20px, 4vw, 48px);
  text-align: center;
  color: var(--ink-mute);
  font-size: 13px;
}
.site-footer a { text-decoration: none; transition: color .2s; }
.site-footer a:hover { color: var(--ink); }

/* =========================================================
   Toast
   ========================================================= */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: var(--bg);
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  z-index: 100;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}