/* ==========================================================
   SpratAITechLabs — lab notebook aesthetic
   ========================================================== */
:root {
  --paper: #f4efe6;
  --paper-2: #ebe4d6;
  --ink: #14120f;
  --ink-soft: #4a453d;
  --rule: rgba(20, 18, 15, .09);
  --signal: #ff4a1c;
  --herb: #2e6b45;
  --saffron: #f2b134;
  --display: "Bricolage Grotesque", "Helvetica Neue", sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --gutter: clamp(16px, 4vw, 56px);
  --max: 1240px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
/* grain */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; font-weight: 800; line-height: .95; letter-spacing: -.03em; }
p { margin: 0; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.01em; }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.small { font-size: 11px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 200; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px var(--gutter);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 18px; letter-spacing: -.02em; }
.brand b, .footer-brand b { color: var(--signal); font-weight: 800; }
.nav nav { display: flex; align-items: center; gap: clamp(12px, 2.4vw, 32px); }
.nav nav a { text-decoration: none; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.nav nav a:not(.nav-cta):hover { color: var(--signal); }
.nav-cta { background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 999px; transition: background .2s; }
.nav-cta:hover { background: var(--signal); }
@media (max-width: 640px) {
  .nav nav a:not(.nav-cta) { display: none; }
  .brand span { font-size: 16px; }
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 24px; border-radius: 999px;
  text-decoration: none; font-weight: 600; font-size: 16px;
  border: 1.5px solid var(--ink);
  transition: transform .25s var(--ease), background .25s, color .25s, box-shadow .25s;
}
.btn span { transition: transform .25s var(--ease); }
.btn:hover span { transform: translateX(4px); }
.btn-ink { background: var(--ink); color: var(--paper); box-shadow: 4px 4px 0 var(--signal); }
.btn-ink:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--signal); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-signal { background: var(--signal); border-color: var(--signal); color: var(--ink); box-shadow: 4px 4px 0 var(--ink); }
.btn-signal:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  max-width: var(--max); margin: 0 auto;
  padding: clamp(40px, 8vw, 96px) var(--gutter) clamp(56px, 8vw, 104px);
}
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 28px; color: var(--ink-soft); margin-bottom: clamp(28px, 5vw, 56px); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--herb); margin-right: 6px; vertical-align: 1px; }
.dot.live { animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(46,107,69,.5); } 50% { box-shadow: 0 0 0 6px rgba(46,107,69,0); } }

.hero-title { font-size: clamp(48px, 10.5vw, 150px); position: relative; z-index: 2; }
.hero-title span { display: block; }
.hero-title em { color: var(--signal); padding-right: .05em; }
.hero-title .outline { color: transparent; -webkit-text-stroke: 1.5px var(--ink); }

.hero-foot {
  display: grid; grid-template-columns: minmax(0, 1.1fr) auto; gap: 32px; align-items: end;
  margin-top: clamp(32px, 5vw, 64px);
  position: relative; z-index: 2;
}
.lede { max-width: 560px; font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-soft); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 820px) { .hero-foot { grid-template-columns: 1fr; } }

.beaker {
  position: absolute; right: var(--gutter); top: clamp(60px, 9vw, 120px);
  width: clamp(120px, 20vw, 260px);
  z-index: 1; opacity: .95;
  animation: float 7s ease-in-out infinite;
}
.beaker .glass { fill: rgba(255,255,255,.35); stroke: var(--ink); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.beaker .liquid { fill: var(--signal); opacity: .9; animation: slosh 4s ease-in-out infinite; transform-origin: 100px 180px; }
.bubble { fill: var(--paper); animation: rise 3.2s ease-in infinite; }
.b2 { animation-delay: 1.1s; } .b3 { animation-delay: 2s; }
@keyframes float { 0%,100% { transform: translateY(0) rotate(6deg); } 50% { transform: translateY(-14px) rotate(2deg); } }
@keyframes slosh { 0%,100% { transform: skewY(0); } 50% { transform: skewY(-3deg); } }
@keyframes rise { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(-60px); opacity: 0; } }
@media (max-width: 820px) { .beaker { opacity: .25; top: 40px; } }

/* ---------- TICKER ---------- */
.ticker { background: var(--ink); color: var(--paper); overflow: hidden; padding: 16px 0; transform: rotate(-1.2deg); margin: 0 -20px; border-block: 2px solid var(--signal); }
.ticker-track { display: flex; gap: 32px; width: max-content; animation: marquee 32s linear infinite; font-size: clamp(20px, 3vw, 32px); font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.ticker-track span:nth-child(even) { color: var(--signal); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- SECTIONS ---------- */
.section-head { max-width: var(--max); margin: 0 auto clamp(40px, 6vw, 72px); padding: 0 var(--gutter); }
.label { color: var(--signal); margin-bottom: 18px; }
.section-head h2, .lab h2 { font-size: clamp(44px, 7vw, 96px); }
.section-sub { margin-top: 18px; max-width: 540px; color: var(--ink-soft); font-size: 18px; }
.light { color: rgba(244,239,230,.72); }
.label.light { color: var(--saffron); }

/* ---------- APPS ---------- */
.apps { padding: clamp(80px, 12vw, 160px) 0 clamp(40px, 6vw, 80px); }
.specimen {
  --accent: var(--signal);
  max-width: var(--max); margin: 0 auto clamp(56px, 8vw, 110px);
  padding: 0 var(--gutter);
}
.specimen[data-accent="pitch"] { --accent: #f08a12; --accent-grad: linear-gradient(90deg, #ff8a1f, #ffc800); --stage: #1a2040; }
.specimen[data-accent="scrap"] { --accent: var(--herb); }
.specimen-tag {
  display: flex; flex-wrap: wrap; gap: 6px 24px;
  padding: 12px 0; border-top: 2px solid var(--ink); border-bottom: 1px dashed var(--ink);
}
.specimen-tag span:first-child { color: var(--accent); font-weight: 500; }
.specimen-body {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
  gap: clamp(32px, 6vw, 96px); align-items: center;
  padding-top: clamp(32px, 5vw, 64px);
}
.specimen.reverse .phone-stage { order: -1; }
.specimen h3 { font-size: clamp(52px, 7vw, 100px); color: var(--ink); overflow-wrap: break-word; }
.tagline { font-family: var(--serif); font-style: italic; font-size: clamp(24px, 2.6vw, 34px); line-height: 1.15; margin: 14px 0 22px; color: var(--accent); }
.specimen-copy > p:not(.tagline) { color: var(--ink-soft); max-width: 520px; }
.features { list-style: none; padding: 0; margin: 28px 0 32px; border-top: 1px solid var(--rule); }
.features li { display: flex; gap: 18px; align-items: baseline; padding: 12px 0; border-bottom: 1px solid var(--rule); font-weight: 600; }
.features .mono { color: var(--accent); }

.store-row { display: flex; flex-wrap: wrap; gap: 12px; }
.store {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--ink); color: var(--paper); text-decoration: none;
  padding: 10px 18px 10px 14px; border-radius: 12px;
  font-weight: 600; font-size: 17px; line-height: 1.1;
  transition: transform .25s var(--ease), background .25s;
}
.store svg { width: 24px; height: 24px; fill: currentColor; }
.store small { display: block; font-size: 10px; font-weight: 400; opacity: .75; }
.store:hover { transform: translateY(-3px); background: var(--accent); }

/* app title + verdicts */
.app-title { display: flex; align-items: center; gap: clamp(14px, 2vw, 24px); }
.app-icon { width: clamp(64px, 7vw, 88px); height: auto; border-radius: 22%; box-shadow: 0 10px 24px -8px rgba(26,32,64,.55); flex: none; }
.specimen[data-accent="pitch"] .tagline { background: linear-gradient(90deg, #d9560a, #c08400); -webkit-background-clip: text; background-clip: text; color: transparent; }
.features b { font-weight: 800; }
.verdicts { list-style: none; padding: 0; margin: -8px 0 32px; display: flex; flex-wrap: wrap; gap: 8px; }
.verdicts li { font-size: 13px; font-weight: 800; letter-spacing: .02em; text-transform: uppercase; padding: 7px 12px; border-radius: 999px; border: 1.5px solid var(--ink); background: var(--paper); }
.verdicts .v-sell { background: #2fc463; border-color: #1f9a4a; color: #06240f; }
.verdicts .v-donate { background: #cfdcf1; }
.verdicts .v-recycle { background: #d8efd9; }
.verdicts .v-trash { background: #efdcd3; }
.verdicts .v-keep { background: #ffe39a; }
.store-soon { background: transparent; color: var(--ink-soft); border: 1.5px dashed var(--ink-soft); cursor: default; }
.store-soon:hover { transform: none; background: transparent; }

/* phones */
.phone-stage { position: relative; display: grid; place-items: center; padding: 20px 0; }
.phone-stage::before {
  content: ""; position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 35%, transparent), transparent 68%);
}
.phone {
  position: relative; width: min(300px, 78vw); aspect-ratio: 9 / 19;
  background: var(--ink); border-radius: 44px; padding: 12px;
  box-shadow: 0 1px 0 2px #3a352e inset, 18px 24px 0 -2px color-mix(in srgb, var(--accent) 80%, black), 0 40px 60px -20px rgba(20,18,15,.45);
  transform: rotate(-4deg);
  transition: transform .6s var(--ease);
}
.specimen.reverse .phone { transform: rotate(4deg); box-shadow: 0 1px 0 2px #3a352e inset, -18px 24px 0 -2px color-mix(in srgb, var(--accent) 80%, black), 0 40px 60px -20px rgba(20,18,15,.45); }
.phone-stage:hover .phone { transform: rotate(0) translateY(-6px); }
.phone .shot { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 33px; display: block; background: #1a2040; }
.duo { min-height: 640px; }
.duo::before { background: radial-gradient(circle, rgba(255,170,30,.45), transparent 66%) !important; }
.duo .phone { position: absolute; width: min(270px, 60vw); }
.duo .phone-back { transform: translate(-28%, -4%) rotate(-9deg) scale(.9); box-shadow: 0 1px 0 2px #3a352e inset, 0 30px 50px -20px rgba(20,18,15,.45); filter: saturate(.9); }
.duo .phone-front { transform: translate(24%, 4%) rotate(5deg); box-shadow: 0 1px 0 2px #3a352e inset, 18px 24px 0 -2px #f5a300, 0 40px 60px -20px rgba(20,18,15,.5); }
.duo:hover .phone-back { transform: translate(-34%, -6%) rotate(-12deg) scale(.9); }
.duo:hover .phone-front { transform: translate(28%, 0) rotate(2deg); }
.duo .sticker { background: linear-gradient(135deg, #ff8a1f, #ffc800); right: 2%; top: 4%; }
@media (max-width: 560px) {
  .duo { min-height: 520px; }
  .duo .phone { width: 210px; }
}
.notch { position: absolute; top: 20px; left: 50%; translate: -50% 0; width: 90px; height: 24px; background: var(--ink); border-radius: 20px; z-index: 2; }
.screen { height: 100%; border-radius: 33px; padding: 58px 20px 22px; display: flex; flex-direction: column; gap: 16px; overflow: hidden; }
.s-label { font-size: 10px; opacity: .7; }
.screen h4 { font-size: 22px; line-height: 1.1; letter-spacing: -.02em; }

.scrap-screen { background: #fbf6ec; color: var(--ink); }
.pantry { display: flex; flex-wrap: wrap; gap: 6px; }
.pantry span { background: #fff; border: 1px solid var(--rule); border-radius: 999px; padding: 5px 10px; font-size: 12px; font-weight: 600; }
.recipe { background: var(--herb); color: var(--paper); border-radius: 20px; padding: 16px; display: grid; gap: 6px; }
.recipe h4 { font-family: var(--serif); font-weight: 400; font-size: 26px; }
.recipe p:last-child { font-size: 12px; opacity: .8; }
.saved { margin-top: auto; display: flex; align-items: baseline; gap: 10px; border-top: 1px dashed var(--ink); padding-top: 14px; }
.saved b { font-size: 30px; letter-spacing: -.03em; color: var(--herb); }
.saved span { font-size: 12px; color: var(--ink-soft); }

.sticker {
  position: absolute; right: 4%; top: 8%;
  width: 96px; height: 96px; border-radius: 50%;
  display: grid; place-items: center; text-align: center;
  background: var(--saffron); color: var(--ink);
  font-weight: 800; font-size: 15px; line-height: 1; text-transform: uppercase; letter-spacing: -.01em;
  border: 2px solid var(--ink);
  transform: rotate(12deg);
  animation: spin-wobble 6s ease-in-out infinite;
  z-index: 3;
}
.specimen.reverse .sticker { right: auto; left: 4%; background: var(--signal); }
@keyframes spin-wobble { 0%,100% { transform: rotate(12deg) scale(1); } 50% { transform: rotate(-6deg) scale(1.06); } }

@media (max-width: 900px) {
  .specimen-body { grid-template-columns: 1fr; }
  .specimen.reverse .phone-stage { order: 0; }
}

/* ---------- METHOD ---------- */
.method { padding: clamp(60px, 10vw, 120px) 0; }
.steps {
  list-style: none; margin: 0 auto; padding: 0 var(--gutter);
  max-width: var(--max);
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0;
  border-top: 2px solid var(--ink);
}
.steps li { padding: 28px 24px 36px 0; border-right: 1px solid var(--rule); position: relative; }
.steps li + li { padding-left: 24px; }
.steps li:last-child { border-right: 0; }
.step-n { display: block; font-size: 13px; color: var(--signal); margin-bottom: 40px; }
.steps h3 { font-size: clamp(28px, 3vw, 40px); margin-bottom: 14px; }
.steps p { color: var(--ink-soft); font-size: 16px; }
.steps li::before { content: ""; position: absolute; top: -2px; left: 0; height: 2px; width: 0; background: var(--signal); transition: width .8s var(--ease); }
.steps li + li::before { left: 24px; }
.steps li.in::before { width: 48px; }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li:nth-child(2) { border-right: 0; }
  .steps li:nth-child(3) { padding-left: 0; }
  .steps li:nth-child(3)::before { left: 0; }
  .steps li:nth-child(n+3) { border-top: 1px solid var(--rule); }
}
@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; }
  .steps li, .steps li + li { padding-left: 0; border-right: 0; }
  .steps li + li { border-top: 1px solid var(--rule); }
  .steps li + li::before { left: 0; }
  .step-n { margin-bottom: 16px; }
}

/* ---------- LAB ---------- */
.lab {
  background: var(--ink); color: var(--paper);
  background-image:
    linear-gradient(rgba(244,239,230,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,239,230,.05) 1px, transparent 1px);
  background-size: 28px 28px;
  padding: clamp(80px, 12vw, 150px) var(--gutter);
}
.lab-inner { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(40px, 6vw, 80px); align-items: center; }
.lab h2 { color: var(--paper); }
.lab-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.flask-card {
  border: 1px solid rgba(244,239,230,.2); border-radius: 18px;
  padding: 20px; min-height: 230px;
  display: flex; flex-direction: column; gap: 14px;
  background: rgba(244,239,230,.03);
  transition: border-color .3s, transform .4s var(--ease), background .3s;
}
.flask-card:hover { border-color: var(--saffron); transform: translateY(-6px); background: rgba(242,177,52,.06); }
.flask-card > .mono:first-child { color: var(--saffron); }
.redacted { display: grid; gap: 8px; margin-top: 8px; }
.redacted i { display: block; height: 18px; background: var(--paper); border-radius: 3px; opacity: .9; }
.redacted i:last-child { width: 60%; }
.progress { margin-top: auto; height: 6px; background: rgba(244,239,230,.12); border-radius: 6px; overflow: hidden; }
.progress b { display: block; height: 100%; width: 0; background: var(--signal); border-radius: inherit; transition: width 1.6s var(--ease) .2s; }
.flask-card.in .progress b { width: var(--v); }
.flask-card .small { opacity: .7; }
.idea { font-family: var(--serif); font-style: italic; font-size: 26px; line-height: 1.1; }
.flask-card .link { margin-top: auto; opacity: 1; color: var(--saffron); text-decoration: none; }
.flask-card .link:hover { text-decoration: underline; }
@media (max-width: 1000px) { .lab-inner { grid-template-columns: 1fr; } }
@media (max-width: 620px) { .lab-grid { grid-template-columns: 1fr; } .flask-card { min-height: 0; } }

/* ---------- CONTACT ---------- */
.contact { max-width: var(--max); margin: 0 auto; padding: clamp(90px, 13vw, 170px) var(--gutter); }
.contact-title { font-size: clamp(52px, 10vw, 140px); }
.contact-title em { color: var(--signal); }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

/* ---------- FOOTER ---------- */
.footer {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px;
  padding: 28px var(--gutter);
  border-top: 2px solid var(--ink);
}
.footer-brand { font-weight: 800; font-size: 20px; letter-spacing: -.02em; }
.footer nav { display: flex; gap: 24px; }
.footer nav a { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; text-decoration: none; }
.footer nav a:hover { color: var(--signal); }
.footer .small { color: var(--ink-soft); }

/* ---------- REVEAL ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }


/* ---------- LEGAL PAGE ---------- */
.legal { max-width: 760px; margin: 0 auto; padding: clamp(56px, 9vw, 110px) var(--gutter); }
.legal h1 { font-size: clamp(44px, 8vw, 88px); margin-bottom: 12px; }
.legal h2 { font-size: 26px; margin: 44px 0 12px; letter-spacing: -.02em; }
.legal p, .legal li { color: var(--ink-soft); }
.legal p + p { margin-top: 12px; }
.legal ul { padding-left: 20px; }
.legal .back { display: inline-block; margin-bottom: 32px; text-decoration: none; color: var(--signal); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}