/* ============================================================
   SINATRA LABS — design tokens + base
   ============================================================ */

:root {
  /* Palettes — controlled by Tweaks (set on body data-palette) */
  --bg: #0a0d18;
  --bg-elev: #11151f;
  --ink: #f4f0e6;
  --ink-dim: rgba(244, 240, 230, 0.72);
  --ink-mute: rgba(244, 240, 230, 0.46);
  --rule: rgba(244, 240, 230, 0.12);
  --rule-strong: rgba(244, 240, 230, 0.22);
  --paper: #f6f1e4;
  --paper-ink: #14161e;

  /* Neon */
  --neon-hue: 58;
  --neon: #f0ad67;
  --neon-bright: #ffe7ca;
  --neon-deep: #c77737;

  /* Type stacks (swappable via [data-type]) */
  --serif: "Editorial New", "Tiempos Headline", "Canela", "Times New Roman", serif;
  --grotesk: "Söhne", "Inter Display", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --display: var(--serif);
  --body: var(--grotesk);

  /* Sizes */
  --fs-display: clamp(64px, 10vw, 184px);
  --fs-h1: clamp(48px, 6.5vw, 112px);
  --fs-h2: clamp(34px, 4.4vw, 72px);
  --fs-h3: clamp(22px, 2.2vw, 32px);
  --fs-body: 17px;
  --fs-small: 13px;
  --fs-mono: 11px;

  /* Layout */
  --gutter: 32px;
  --max: 1440px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-strong: cubic-bezier(0.7, 0, 0.2, 1);
}

[data-palette="midnight-magenta"] {
  --bg: #0a0d18;
  --bg-elev: #11151f;
  --ink: #f4f0e6;
  --paper: #f6f1e4;
  --paper-ink: #14161e;
  --neon-hue: 318;
}

[data-palette="smoky-amber"] {
  --bg: #0d0a06;
  --bg-elev: #15110a;
  --ink: #f3ead6;
  --paper: #f1e9d3;
  --paper-ink: #1a140a;
  --neon-hue: 58;
  --neon: #f0ad67;
  --neon-bright: #ffe7ca;
  --neon-deep: #c77737;
}

[data-palette="oxblood-pink"] {
  --bg: #1a0a0e;
  --bg-elev: #240e14;
  --ink: #f5ece4;
  --paper: #f3e7df;
  --paper-ink: #20070b;
  --neon-hue: 350;
}

[data-palette="charcoal-electric"] {
  --bg: #0c0e10;
  --bg-elev: #14171b;
  --ink: #ecedf0;
  --paper: #ecedf0;
  --paper-ink: #0c0e10;
  --neon-hue: 248;
}

[data-type="editorial"] {
  --display: var(--serif);
  --body: var(--grotesk);
}
[data-type="condensed"] {
  --display: "Playfair Display", "GT Sectra", "Canela Deck", serif;
  --body: var(--grotesk);
}
[data-type="grotesk"] {
  --display: var(--grotesk);
  --body: var(--grotesk);
}
[data-type="mixed"] {
  --display: var(--serif);
  --body: var(--grotesk);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--bg); }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--fs-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  cursor: auto;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: transparent; border: 0; padding: 0; cursor: pointer; }
img { display: block; max-width: 100%; }
::selection { background: var(--neon); color: var(--bg); }

/* ---------- Page grain ---------- */
.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 1;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.9'/></svg>");
}

/* ---------- Utilities ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}
.rule { height: 1px; background: var(--rule); width: 100%; }
.rule-strong { height: 1px; background: var(--rule-strong); width: 100%; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Section frame ---------- */
section {
  position: relative;
  z-index: 2;
}

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.in { opacity: 1; transform: translateY(0); }

.split-line {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  line-height: 1.05;
  padding-bottom: 0.08em;
}
.split-line > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 0.95s var(--ease);
  transition-delay: var(--d, 0ms);
}
.split-line.in > span { transform: translateY(0); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-radius: 999px;
  font-family: var(--body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid var(--rule-strong);
  color: var(--ink);
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn-ghost { border-color: transparent; padding: 16px 0; }
.btn-ghost::after {
  content: "";
  position: absolute;
  left: 0; bottom: 12px;
  height: 1px; width: 100%;
  background: currentColor;
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.btn-ghost:hover { background: transparent; color: var(--ink); border: 0; padding: 16px 0; }
.btn-ghost:hover::after { transform: scaleX(0.5); }

.btn .arrow { transition: transform 0.4s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Marquee ---------- */
.marquee {
  display: flex;
  width: 100%;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  gap: 56px;
  flex-shrink: 0;
  min-width: 100%;
  animation: marquee 40s linear infinite;
}
@keyframes marquee {
  to { transform: translateX(-100%); }
}

/* ---------- Sticky section nav ---------- */
.sticky-nav {
  position: fixed;
  top: 0;
  left: 0; right: 0;
  z-index: 100;
  padding: 20px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  transition: padding 0.35s var(--ease), color 0.35s var(--ease);
}
.sticky-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 0;
  background: rgba(5, 6, 10, 0);
  border: 1px solid rgba(255, 255, 255, 0);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0);
  opacity: 0;
  transform: translateY(-6px);
  backdrop-filter: blur(0px) saturate(100%);
  -webkit-backdrop-filter: blur(0px) saturate(100%);
  pointer-events: none;
  transition:
    opacity 0.35s var(--ease),
    transform 0.35s var(--ease),
    background 0.35s var(--ease),
    border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease),
    -webkit-backdrop-filter 0.35s var(--ease);
}
.sticky-nav > * {
  position: relative;
  z-index: 1;
}
.sticky-nav.is-scrolled {
  padding: 14px var(--gutter);
}
.sticky-nav.is-scrolled::before {
  opacity: 1;
  transform: translateY(0);
  background: linear-gradient(180deg, rgba(12, 13, 18, 0.82), rgba(7, 8, 12, 0.58));
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}
.sticky-nav .links {
  display: flex;
  gap: 32px;
  align-items: center;
  font-family: var(--body);
  font-size: 14px;
}
.sticky-nav .links a {
  position: relative;
  padding: 6px 0;
  transition: opacity 0.3s var(--ease);
  opacity: 0.78;
}
.sticky-nav .links a:hover { opacity: 1; }
.sticky-nav .brand {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: -0.02em;
  font-weight: 400;
}
.sticky-nav .brand-labs {
  font-family: "Dancing Script", "Great Vibes", "Allura", cursive;
  font-weight: 700;
  font-size: 1.18em;
  letter-spacing: 0;
  display: inline-block;
  transform: translateY(0.06em);
  margin-left: 0.12em;
  color: var(--neon-bright);
}
.sticky-nav .brand-script {
  font-family: "Great Vibes", "Dancing Script", "Allura", cursive;
  font-weight: 400;
  font-size: 1.4em;
  letter-spacing: 0;
  display: inline-block;
  transform: translateY(0.08em);
  margin-right: 0.14em;
}

/* ---------- Section header ---------- */
.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding: 120px 0 56px;
  align-items: end;
  border-top: 1px solid var(--rule);
}
.section-head .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--ink-mute);
  padding-top: 24px;
}
.section-head h2 {
  font-family: var(--display);
  font-size: var(--fs-h2);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 0.98;
  margin: 0;
  text-wrap: balance;
}
.section-head h2 em {
  font-style: italic;
  color: var(--ink-dim);
}
@media (max-width: 760px) {
  .section-head { grid-template-columns: 1fr; gap: 24px; padding: 80px 0 40px; }
  .section-head .num { padding-top: 0; }
}

/* Inversed (paper) section */
.paper {
  background: var(--paper);
  color: var(--paper-ink);
}
.paper .eyebrow,
.paper .section-head .num,
.paper .ink-mute { color: rgba(20, 22, 30, 0.55); }
.paper .ink-dim { color: rgba(20, 22, 30, 0.72); }
.paper .rule, .paper .section-head { border-color: rgba(20, 22, 30, 0.12); }
.paper ::selection { background: var(--paper-ink); color: var(--paper); }

/* Paper-section component recolors */
.paper { border-top: 1px solid rgba(20, 22, 30, 0.08); border-bottom: 1px solid rgba(20, 22, 30, 0.08); }
.paper .btn { border-color: rgba(20, 22, 30, 0.22); color: var(--paper-ink); }
.paper .btn:hover { background: var(--paper-ink); color: var(--paper); border-color: var(--paper-ink); }
.paper .btn-ghost { border-color: transparent; color: var(--paper-ink); }
.paper .btn-ghost:hover { background: transparent; color: var(--paper-ink); border: 0; }
.paper hr,
.paper .case-card,
.paper .services-list > *,
.paper .journal-card,
.paper .team-card,
.paper [class*="-row"] { border-color: rgba(20, 22, 30, 0.14) !important; }
.paper .tag { color: rgba(20, 22, 30, 0.7); border-color: rgba(20, 22, 30, 0.18); }
.paper .neon { /* keep neon glow legible on cream */ }
.paper .ink-dim, .paper .text-dim { color: rgba(20, 22, 30, 0.72); }

/* ---------- Tooltips/labels ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.tag::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
}


/* ============================================================
   MOBILE OPTIMIZATIONS — styles.css
   Desktop untouched. All rules are additive overrides.
   ============================================================ */

/* 1 — Tighten horizontal gutters on phones */
@media (max-width: 600px) {
  :root { --gutter: 20px; }
}

/* 2 — Nav: collapse text links, keep logo + CTA only */
@media (max-width: 760px) {
  .sticky-nav .links a:not(.btn-cta) { display: none; }
  .sticky-nav .links { gap: 0; }
  .sticky-nav .btn-cta > span {
    padding: 8px 14px;
    font-size: 12px;
    letter-spacing: 0;
  }
}

/* 3 — Tighten nav padding and brand size on tiny screens */
@media (max-width: 480px) {
  .sticky-nav { padding: 14px var(--gutter); }
  .sticky-nav .brand { font-size: 20px; }
}

/* 4 — Section head: reduce top padding on phones */
@media (max-width: 600px) {
  .section-head {
    padding: 64px 0 32px;
    gap: 16px;
  }
}