/* kanojo.ai — underwater stationery, vintage cataloguing over abyssal blue */

:root {
  --abyssal-ink: #02121f;
  --submarine-slate: #08243a;
  --tidewater-indigo: #103a5a;
  --phosphor-blue: #2a6f8e;
  --sea-glass-pale: #7fc7d9;
  --vellum-cream: #e8e0c6;
  --faded-coral: #c97a6b;
  --pencil-graphite: #3a3a44;

  --font-cursive: 'Caveat', cursive;
  --font-hand: 'Homemade Apple', cursive;
  --font-serif: 'Cormorant Garamond', serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--abyssal-ink);
  color: var(--sea-glass-pale);
  font-family: var(--font-serif);
  font-size: 1.075rem;
  line-height: 1.78;
  letter-spacing: 0.005em;
  overflow-x: hidden;
  cursor: crosshair;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  height: 78vh;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: radial-gradient(120% 90% at 50% 30%, #062236 0%, var(--abyssal-ink) 70%);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 50% 45%, rgba(2,18,36,0) 0%, rgba(2,18,36,0.55) 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 0 1.5rem;
}

.hero-eyebrow {
  font-family: var(--font-hand);
  font-size: clamp(0.95rem, 1.6vw, 1.2rem);
  color: var(--sea-glass-pale);
  opacity: 0.7;
  transform: rotate(-1.4deg);
  margin-bottom: 0.6rem;
}

.hero-title {
  font-family: var(--font-cursive);
  font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  letter-spacing: -0.01em;
  line-height: 1.05;
  color: var(--sea-glass-pale);
  text-shadow: 0 0 28px rgba(42,111,142,0.45);
  display: inline-block;
  white-space: nowrap;
}

.hero-title .glyph {
  display: inline-block;
  transition: transform 480ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.hero-sub {
  margin-top: 0.9rem;
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  font-variant: small-caps;
  letter-spacing: 0.12em;
  opacity: 0.6;
  color: var(--sea-glass-pale);
}

.hero-scrollhint {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-family: var(--font-hand);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--sea-glass-pale);
  opacity: 0.45;
  animation: bob 9s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(7px); }
}

/* ---------- DIVIDERS ---------- */
.divider {
  display: block;
  width: 100%;
  height: 26px;
  margin: 0 auto;
}
.divider path {
  fill: none;
  stroke: var(--sea-glass-pale);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: 3 5 8 4 12 6;
  opacity: 0.5;
}
.divider-bottom path { stroke-dasharray: 6 4 10 5 4 7; opacity: 0.45; }

/* ---------- ARCHIVE GRID ---------- */
.archive {
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(2rem, 5vw, 3.4rem);
  background:
    radial-gradient(140% 60% at 20% 0%, rgba(16,58,90,0.35) 0%, transparent 60%),
    radial-gradient(120% 50% at 90% 100%, rgba(16,58,90,0.25) 0%, transparent 55%),
    var(--abyssal-ink);
}

.grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: minmax(120px, auto);
  grid-auto-flow: dense;
  gap: clamp(1rem, 2.2vw, 2rem);
}

.cell {
  position: relative;
  border-radius: 14px;
  padding: clamp(1rem, 1.8vw, 1.6rem);
  overflow: hidden;
  background: var(--submarine-slate);
  box-shadow:
    inset 0 0 0 1px rgba(232, 224, 198, 0.18),
    0 14px 38px -18px rgba(2, 18, 36, 0.65);
  --mx: 0px; --my: 0px; --mr: 0deg;
  transform: translate(var(--mx), var(--my)) rotate(var(--mr));
  transition: transform 480ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

/* span helpers */
.span-c1 { grid-column: span 1; }
.span-c2 { grid-column: span 2; }
.span-c3 { grid-column: span 3; }
.span-r1 { grid-row: span 1; }
.span-r2 { grid-row: span 2; }

/* generative cells */
.cell-gen {
  background: var(--abyssal-ink);
  box-shadow:
    inset 0 0 0 1px rgba(232, 224, 198, 0.14),
    0 14px 38px -18px rgba(2, 18, 36, 0.7);
}
.cell-gen .gen-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* letter cells */
.cell-letter {
  background:
    linear-gradient(180deg, rgba(232,224,198,0.97), rgba(232,224,198,0.9)),
    var(--vellum-cream);
  color: var(--pencil-graphite);
  transform: translate(var(--mx), var(--my)) rotate(calc(var(--mr) - 0.7deg));
}
.letter-line {
  font-family: var(--font-cursive);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.6vw, 2.3rem);
  line-height: 1.18;
  color: #2c2c30;
}
.ink-underline {
  position: relative;
  color: var(--faded-coral);
  white-space: nowrap;
}
.underline-svg {
  position: absolute;
  left: 0;
  bottom: -0.18em;
  width: 100%;
  height: 0.45em;
  overflow: visible;
}
.underline-svg path {
  fill: none;
  stroke: var(--faded-coral);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-dasharray: 160;
  stroke-dashoffset: 160;
}
.cell-letter.revealed .underline-svg path {
  transition: stroke-dashoffset 1.4s ease-in-out;
  stroke-dashoffset: 0;
}

/* note cells */
.cell-note {
  background: var(--tidewater-indigo);
  box-shadow:
    inset 0 0 0 1px rgba(58,58,68,0.55),
    inset 0 0 0 2px rgba(232,224,198,0.12),
    0 14px 38px -18px rgba(2, 18, 36, 0.65);
}
.note-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  line-height: 1.7;
  color: var(--sea-glass-pale);
  opacity: 0.92;
}

/* vintage specimen tags */
.tag {
  position: absolute;
  font-family: var(--font-serif);
  font-style: italic;
  font-variant: small-caps;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--pencil-graphite);
  background: var(--vellum-cream);
  padding: 0.18rem 0.5rem 0.18rem 1rem;
  border: 1px solid var(--pencil-graphite);
  border-radius: 2px;
  box-shadow: 0 4px 10px -6px rgba(2,18,36,0.6);
  white-space: nowrap;
  z-index: 3;
}
.tag::before {
  content: "";
  position: absolute;
  left: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--abyssal-ink);
  box-shadow: inset 0 0 0 1px var(--pencil-graphite);
}
.tag-tl { top: 0.7rem; left: 0.7rem; transform: rotate(-2.4deg); }
.tag-tr { top: 0.7rem; right: 0.7rem; transform: rotate(2.1deg); }
.tag-bl { bottom: 0.7rem; left: 0.7rem; transform: rotate(1.6deg); }
.tag-br { bottom: 0.7rem; right: 0.7rem; transform: rotate(-1.8deg); }

/* ---------- FOOTER FOLD ---------- */
.fold {
  background: var(--abyssal-ink);
  padding: clamp(2.5rem, 6vw, 5rem) 1.5rem clamp(3rem, 7vw, 6rem);
  display: flex;
  justify-content: center;
}
.fold-paper {
  max-width: 760px;
  width: 100%;
  background:
    linear-gradient(175deg, rgba(232,224,198,0.97), rgba(220,212,184,0.94)),
    var(--vellum-cream);
  color: var(--pencil-graphite);
  border-radius: 6px;
  padding: clamp(2rem, 4vw, 3.4rem);
  transform: rotate(-1.4deg);
  box-shadow:
    0 30px 70px -30px rgba(2,18,36,0.85),
    inset 0 0 0 1px rgba(58,58,68,0.25);
  text-align: center;
}
.fold-ps {
  font-family: var(--font-cursive);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.8vw, 2.4rem);
  line-height: 1.3;
  color: #2c2c30;
}
.fold-ps i { color: var(--faded-coral); }

.stamps {
  display: flex;
  gap: clamp(1rem, 3vw, 2.4rem);
  justify-content: center;
  margin: clamp(1.6rem, 3.5vw, 2.8rem) 0;
}
.stamp {
  width: clamp(60px, 11vw, 92px);
  background: var(--vellum-cream);
  padding: 6px;
  border-radius: 2px;
  -webkit-mask-image: radial-gradient(circle at center, #000 99%, transparent 100%);
  filter: drop-shadow(0 6px 14px rgba(2,18,36,0.35));
  --notch: 4px;
  -webkit-mask:
    radial-gradient(circle var(--notch) at 0 0, transparent 99%, #000 100%) 0 0 / 12px 12px round;
}
.stamp svg { display: block; width: 100%; height: auto; }
.stamp-frame { fill: none; stroke: var(--pencil-graphite); stroke-width: 1.2; stroke-dasharray: 2 2; }
.stamp-art { fill: none; stroke: var(--phosphor-blue); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.stamp-dot { fill: var(--faded-coral); }
.stamp-label {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 6px;
  fill: var(--pencil-graphite);
  text-anchor: middle;
  letter-spacing: 0.04em;
}

.fold-foot {
  font-family: var(--font-serif);
  font-variant: small-caps;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: var(--pencil-graphite);
  opacity: 0.6;
}

/* ---------- CURSOR BLOOM (page-wide ambient glow) ---------- */
.cursor-bloom {
  position: fixed;
  top: 0; left: 0;
  width: 360px; height: 360px;
  margin: -180px 0 0 -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(127,199,217,0.10) 0%, rgba(42,111,142,0.06) 35%, transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate3d(-9999px, -9999px, 0);
  will-change: transform;
  mix-blend-mode: screen;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .span-c3 { grid-column: span 4; }
  .span-c2 { grid-column: span 2; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
  .span-c1, .span-c2, .span-c3 { grid-column: span 2; }
  .span-r2 { grid-row: span 1; }
  .hero-title { white-space: normal; }
}