/* ============================================================
   memoize.studio — four-theme design system
   Themes: noir (dark premium) · light (Apple-clean) ·
           pop (bold playful) · journal (editorial print)
   ============================================================ */

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

:root {
  --max-w: 1120px;
  --radius: 20px;
  --ease: cubic-bezier(.22,.9,.3,1);
}

/* ---------- THEME: NOIR (default) ---------- */
html[data-theme="noir"] {
  --bg: #0a0a12;
  --bg-elev: rgba(255,255,255,.035);
  --ink: #f0f0f6;
  --ink-soft: #9a9aad;
  --accent: #5df2c8;
  --accent-ink: #062b21;
  --line: rgba(255,255,255,.09);
  --card-border: 1px solid rgba(255,255,255,.08);
  --card-shadow: 0 24px 60px -30px rgba(0,0,0,.8);
  --font-display: "Bricolage Grotesque", sans-serif;
  --font-body: "Hanken Grotesk", sans-serif;
  --btn-radius: 999px;
  --icon-bg: linear-gradient(135deg, #17172a, #0e0e1a);
  --icon-ink: var(--accent);
}

/* ---------- THEME: LIGHT (Apple-clean) ---------- */
html[data-theme="light"] {
  --bg: #fbfbfd;
  --bg-elev: #f5f5f7;
  --ink: #1d1d1f;
  --ink-soft: #6e6e73;
  --accent: #0071e3;
  --accent-ink: #ffffff;
  --line: rgba(0,0,0,.08);
  --card-border: 1px solid rgba(0,0,0,.04);
  --card-shadow: 0 20px 40px -24px rgba(0,0,0,.18);
  --font-display: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hanken Grotesk", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hanken Grotesk", sans-serif;
  --btn-radius: 999px;
  --icon-bg: linear-gradient(135deg, #eef4fb, #e3edf8);
  --icon-ink: var(--accent);
}

/* ---------- THEME: POP (bold playful) ---------- */
html[data-theme="pop"] {
  --bg: #fff3e2;
  --bg-elev: #ffffff;
  --ink: #1b1030;
  --ink-soft: #5c4a7a;
  --accent: #ff4d3d;
  --accent-ink: #fff;
  --pop-blue: #2547ff;
  --pop-yellow: #ffd23f;
  --line: #1b1030;
  --card-border: 3px solid #1b1030;
  --card-shadow: 8px 8px 0 #1b1030;
  --font-display: "Unbounded", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --btn-radius: 14px;
  --icon-bg: var(--pop-yellow);
  --icon-ink: #1b1030;
}

/* ---------- THEME: JOURNAL (editorial print) ---------- */
html[data-theme="journal"] {
  --bg: #faf6ef;
  --bg-elev: #faf6ef;
  --ink: #211c17;
  --ink-soft: #7a7166;
  --accent: #8b2e2e;
  --accent-ink: #faf6ef;
  --line: rgba(33,28,23,.25);
  --card-border: none;
  --card-shadow: none;
  --font-display: "Fraunces", serif;
  --font-body: "Newsreader", serif;
  --btn-radius: 0;
  --icon-bg: transparent;
  --icon-ink: var(--ink);
}

/* ============ BASE ============ */
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .55s var(--ease), color .55s var(--ease);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
h1,h2,h3 { font-family: var(--font-display); line-height: 1.06; }
main, .nav, .footer { position: relative; z-index: 2; }

/* ============ AMBIENT DECOR ============ */
.deco { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0; transition: opacity .6s var(--ease); }
html[data-theme="noir"] .deco-noir,
html[data-theme="pop"] .deco-pop,
html[data-theme="journal"] .deco-journal { opacity: 1; }

.glow { position: absolute; border-radius: 50%; filter: blur(90px); }
.glow-1 { width: 560px; height: 560px; top: -180px; right: -120px; background: radial-gradient(circle, rgba(93,242,200,.16), transparent 65%); }
.glow-2 { width: 640px; height: 640px; top: 40vh; left: -240px; background: radial-gradient(circle, rgba(97,110,255,.14), transparent 65%); }
.gridlines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 100%);
}
.blob { position: absolute; border-radius: 50%; }
.b1 { width: 240px; height: 240px; background: #ffd23f; top: 8vh; right: -80px; border: 3px solid #1b1030; }
.b2 { width: 120px; height: 120px; background: #2547ff; top: 58vh; left: -40px; border: 3px solid #1b1030; }
.b3 { width: 70px; height: 70px; background: #ff4d3d; top: 42vh; right: 14vw; border: 3px solid #1b1030; }
.squiggle { position: absolute; bottom: 12vh; right: 8vw; font-size: 42px; color: #2547ff; letter-spacing: -6px; transform: rotate(-8deg); }
.deco-journal {
  background-image: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(33,28,23,.012) 3px, rgba(33,28,23,.012) 4px);
}

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  max-width: var(--max-w); margin: 0 auto;
  padding: 18px 24px;
}
.nav::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
html[data-theme="journal"] .nav::before { border-bottom: 2px solid var(--ink); }

.wordmark { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 19px; }
.wm-sym {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent); color: var(--accent-ink);
  font-family: Georgia, serif; font-size: 17px; font-weight: 700;
  transition: background .55s var(--ease), color .55s var(--ease);
}
html[data-theme="pop"] .wm-sym { border: 3px solid var(--ink); box-shadow: 3px 3px 0 var(--ink); }
.wm-tld { color: var(--ink-soft); font-weight: 400; }

.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 15px; color: var(--ink-soft); }
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: var(--ink); }

.theme-switch {
  display: flex; gap: 4px; padding: 4px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--bg-elev);
}
html[data-theme="pop"] .theme-switch { border: 3px solid var(--ink); border-radius: 14px; }
html[data-theme="journal"] .theme-switch { border-radius: 0; border-color: var(--ink); }
.theme-switch button {
  display: flex; align-items: center; gap: 6px;
  border: 0; background: transparent; color: var(--ink-soft);
  font: 600 12.5px var(--font-body); padding: 6px 11px;
  border-radius: 999px; cursor: pointer; transition: all .25s var(--ease);
}
html[data-theme="pop"] .theme-switch button { border-radius: 9px; }
html[data-theme="journal"] .theme-switch button { border-radius: 0; }
.theme-switch button[aria-checked="true"] { background: var(--ink); color: var(--bg); }
.sw { width: 12px; height: 12px; border-radius: 50%; display: inline-block; border: 1px solid rgba(128,128,128,.4); }
.sw-noir { background: #0a0a12; }
.sw-light { background: #fbfbfd; }
.sw-pop { background: linear-gradient(135deg, #ff4d3d 50%, #ffd23f 50%); }
.sw-journal { background: #faf6ef; box-shadow: inset 0 0 0 2px #8b2e2e; }

/* ============ HERO ============ */
.hero {
  max-width: var(--max-w); margin: 0 auto;
  padding: clamp(70px, 12vh, 140px) 24px 90px;
}
.eyebrow {
  font-size: 13px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 22px;
}
html[data-theme="journal"] .eyebrow::before { content: "Vol. I — "; }
.hero h1 {
  font-size: clamp(52px, 9vw, 108px);
  font-weight: 700; letter-spacing: -.02em;
  max-width: 900px;
}
html[data-theme="pop"] .hero h1 { font-weight: 800; text-transform: uppercase; font-size: clamp(40px, 7.2vw, 84px); }
html[data-theme="journal"] .hero h1 { font-weight: 400; font-style: normal; letter-spacing: -.01em; }
.h-line { display: block; }
.h-accent { color: var(--accent); }
html[data-theme="journal"] .h-accent { font-style: italic; }
html[data-theme="pop"] .h-accent {
  color: var(--accent);
  text-shadow: 4px 4px 0 var(--pop-yellow);
}

.definition {
  max-width: 560px; margin-top: 30px;
  color: var(--ink-soft); font-size: 18px;
}
.definition b { color: var(--ink); font-family: var(--font-display); }
html[data-theme="journal"] .definition {
  border-left: 2px solid var(--accent); padding-left: 20px; font-size: 19px;
}

.hero-cta { display: flex; gap: 14px; margin-top: 38px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 28px;
  border-radius: var(--btn-radius);
  font: 600 15.5px var(--font-body);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .3s, color .3s;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink-soft); }
html[data-theme="pop"] .btn { border: 3px solid var(--ink); box-shadow: 5px 5px 0 var(--ink); font-weight: 700; }
html[data-theme="pop"] .btn:hover { transform: translate(-2px,-2px); box-shadow: 7px 7px 0 var(--ink); }
html[data-theme="pop"] .btn-ghost { background: var(--bg-elev); }
html[data-theme="journal"] .btn { border-radius: 0; }
html[data-theme="journal"] .btn-ghost { border: 1px solid var(--ink); }

.stats { display: flex; gap: clamp(28px, 6vw, 72px); margin-top: 72px; flex-wrap: wrap; }
.stat-n { display: block; font-family: var(--font-display); font-size: 36px; font-weight: 700; color: var(--ink); }
html[data-theme="journal"] .stat-n { font-weight: 400; }
.stat-l { font-size: 13.5px; color: var(--ink-soft); letter-spacing: .06em; text-transform: uppercase; }
html[data-theme="journal"] .stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 0; }

/* ============ SECTIONS ============ */
section { position: relative; }
.section-head { max-width: var(--max-w); margin: 0 auto; padding: 0 24px 44px; }
.sec-index {
  font-family: var(--font-display); font-size: 13px; letter-spacing: .3em;
  color: var(--accent); display: block; margin-bottom: 10px;
}
.section-head h2, .contact h2 {
  font-size: clamp(34px, 5vw, 56px); font-weight: 700; letter-spacing: -.015em;
}
html[data-theme="journal"] .section-head h2, html[data-theme="journal"] .contact h2 { font-weight: 400; }
html[data-theme="pop"] .section-head h2 { text-transform: uppercase; font-weight: 800; }
.sec-sub { color: var(--ink-soft); margin-top: 10px; font-size: 17px; }

/* ============ APPS ============ */
.apps { padding: 60px 0 30px; }
.app-grid {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 22px;
}
.app-card {
  position: relative;
  background: var(--bg-elev);
  border: var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  padding: 26px;
  display: flex; flex-direction: column; gap: 18px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .55s, border-color .55s;
}
.app-card:hover { transform: translateY(-5px); }
html[data-theme="pop"] .app-card { border-radius: 18px; }
html[data-theme="pop"] .app-card:hover { transform: translate(-3px,-3px); box-shadow: 11px 11px 0 var(--ink); }

/* journal theme: cards become ruled editorial rows */
html[data-theme="journal"] .app-grid { grid-template-columns: 1fr; gap: 0; }
html[data-theme="journal"] .app-card {
  flex-direction: row; align-items: center; gap: 28px;
  border-radius: 0; border-top: 1px solid var(--line); padding: 30px 4px;
}
html[data-theme="journal"] .app-card:last-child { border-bottom: 1px solid var(--line); }
html[data-theme="journal"] .app-card:hover { transform: none; background: rgba(139,46,46,.035); }

.app-icon {
  width: 72px; height: 72px; flex: 0 0 72px;
  border-radius: 19px;
  display: grid; place-items: center;
  background: var(--icon-bg); color: var(--icon-ink);
  transition: background .55s, color .55s, transform .3s var(--ease);
}
.app-card:hover .app-icon { transform: scale(1.07) rotate(-3deg); }
.app-icon svg { width: 40px; height: 40px; }
html[data-theme="noir"] .app-icon { border: 1px solid rgba(255,255,255,.1); }
html[data-theme="pop"] .app-icon { border: 3px solid var(--ink); border-radius: 16px; }
html[data-theme="journal"] .app-icon { border: 1px solid var(--ink); border-radius: 50%; }

/* per-app accent hues (noir + light only) */
html[data-theme="noir"] .app-card[data-hue="invoice"] .app-icon,
html[data-theme="light"] .app-card[data-hue="invoice"] .app-icon { color: #4ea8ff; }
html[data-theme="noir"] .app-card[data-hue="lens"] .app-icon,
html[data-theme="light"] .app-card[data-hue="lens"] .app-icon { color: #4fd66a; }
html[data-theme="noir"] .app-card[data-hue="vox"] .app-icon,
html[data-theme="light"] .app-card[data-hue="vox"] .app-icon { color: #d9903f; }
html[data-theme="noir"] .app-card[data-hue="logic"] .app-icon,
html[data-theme="light"] .app-card[data-hue="logic"] .app-icon { color: #b07aff; }
html[data-theme="noir"] .app-card[data-hue="night"] .app-icon,
html[data-theme="light"] .app-card[data-hue="night"] .app-icon { color: #7f9cff; }
html[data-theme="noir"] .app-card[data-hue="pitch"] .app-icon,
html[data-theme="light"] .app-card[data-hue="pitch"] .app-icon { color: #ff6d8a; }
html[data-theme="pop"] .app-card[data-hue="lens"] .app-icon { background: #ff4d3d; color: #fff3e2; }
html[data-theme="pop"] .app-card[data-hue="logic"] .app-icon { background: #2547ff; color: #fff3e2; }
html[data-theme="pop"] .app-card[data-hue="pitch"] .app-icon { background: #ff4d3d; color: #fff3e2; }

.app-body h3 { font-size: 23px; font-weight: 700; }
html[data-theme="journal"] .app-body h3 { font-weight: 500; font-size: 26px; }
.app-cat {
  font-size: 12.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin: 5px 0 10px;
}
.app-desc { color: var(--ink-soft); font-size: 15.5px; }
.app-badge {
  align-self: flex-start; margin-top: auto;
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
  padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--ink-soft);
}
html[data-theme="journal"] .app-badge { display: none; }
html[data-theme="pop"] .app-badge { border: 2px solid var(--ink); color: var(--ink); border-radius: 8px; }

/* ============ STUDIO ============ */
.studio { padding: 90px 0 40px; }
.principles {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px;
}
.principle { border-top: 1px solid var(--line); padding-top: 22px; }
html[data-theme="pop"] .principle { border-top: 3px solid var(--ink); }
.pr-num { font-family: var(--font-display); font-size: 26px; color: var(--accent); display: block; margin-bottom: 12px; }
.principle h3 { font-size: 21px; margin-bottom: 10px; }
.principle p { color: var(--ink-soft); font-size: 15.5px; }

/* ============ CONTACT ============ */
.contact { padding: 100px 24px 120px; text-align: center; }
.contact-inner { max-width: 640px; margin: 0 auto; }
.contact p { color: var(--ink-soft); margin: 16px 0 32px; font-size: 18px; }
.btn-big { font-size: 18px; padding: 18px 38px; }

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--line);
  padding: 36px 24px; text-align: center;
  color: var(--ink-soft); font-size: 14px;
}
.footer .wm-sym { margin: 0 auto 14px; }
.foot-note { margin-top: 6px; font-size: 12.5px; opacity: .7; }
html[data-theme="journal"] .footer { border-top: 2px solid var(--ink); }

/* ============ REVEAL ANIMATION ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.d1 { transition-delay: .08s; } .d2 { transition-delay: .16s; }
.d3 { transition-delay: .24s; } .d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 760px) {
  .nav { flex-wrap: wrap; gap: 12px; }
  .nav-links { display: none; }
  .theme-switch { margin-left: auto; }
  .theme-switch button span { display: none; }
  html[data-theme="journal"] .app-card { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stats { gap: 26px; }
}