/* ============================================================
   WhatSawa — Design System
   Lane: warm editorial / light
   Accent: WhatSawa brand teal-green (#3eab98) — one accent only
   ============================================================ */

:root {
  /* Canvas */
  --bg: #ffffff;
  --bg-2: #f8fafc;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;

  /* Ink */
  --ink: #0f172a;
  --ink-2: #475569;
  --ink-3: #94a3b8;

  /* Accent — WhatSawa brand green */
  --accent: #3eab98;
  --accent-strong: #2d9d8c;
  --accent-text: #1e7d6f; /* darker step for small text on white (AA) */
  --accent-ink: #ffffff;
  --accent-dim: rgba(62, 171, 152, 0.12);
  --accent-glow: rgba(62, 171, 152, 0.28);

  /* WhatsApp chat surface (light-mode native) */
  --wa-bg: #efeae2;
  --wa-header: #f0f2f5;
  --wa-in: #ffffff;
  --wa-out: #d9fdd3;
  --wa-ink: #111b21;
  --wa-meta: #667781;
  --wa-link: #027eb5;
  --wa-ticks: #53bdeb;

  /* Type scale */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --fs-900: clamp(2.4rem, 5.5vw, 4rem);
  --fs-800: clamp(1.9rem, 3.8vw, 2.75rem);
  --fs-700: clamp(1.4rem, 2.4vw, 1.75rem);
  --fs-600: 1.25rem;
  --fs-500: 1.0625rem;
  --fs-400: 0.9375rem;
  --fs-300: 0.8125rem;
  --fs-200: 0.71875rem;

  /* Spacing & shape */
  --space-section: clamp(4.5rem, 9vw, 8rem);
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 40px;

  --maxw: 1180px;

  /* Elevation (light) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--fs-500);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; font-weight: 650; }
p { margin: 0; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}

section { padding: var(--space-section) 0; }

/* ---------- Utility text ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-300);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 20px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-title { font-size: var(--fs-800); max-width: 22ch; }
.section-lede { color: var(--ink-2); max-width: 56ch; margin-top: 1rem; font-size: var(--fs-500); }

.muted { color: var(--ink-2); }
.small { font-size: var(--fs-300); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-family: var(--font);
  font-size: var(--fs-400);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--accent-strong); color: var(--accent-text); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 0.55rem;
  font-weight: 700; font-size: 1.125rem; text-decoration: none; letter-spacing: -0.01em;
}
.logo-mark {
  width: 28px; height: 28px; border-radius: 9px;
  background: var(--accent);
  display: grid; place-items: center;
  color: var(--accent-ink); font-weight: 800; font-size: 0.9rem;
}
.nav-links {
  display: flex; gap: 1.5rem; margin-left: auto;
  font-size: var(--fs-400);
}
.nav-links a { text-decoration: none; color: var(--ink-2); transition: color 0.15s; }
.nav-links a:hover { color: var(--ink); }
.nav .btn { margin-left: 0.5rem; padding: 0.55rem 1.15rem; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav .btn { margin-left: auto; }
}
@media (max-width: 480px) {
  .nav .btn { font-size: 0.8rem; padding: 0.5rem 1rem; }
  .nav-inner { gap: 1rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(3.5rem, 7vw, 6rem) 0 var(--space-section);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -30%; left: 50%;
  width: 900px; height: 700px;
  transform: translateX(-15%);
  background: radial-gradient(closest-side, rgba(62, 171, 152, 0.1), transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  position: relative;
}
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { justify-self: center; }
}

.badge-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 1.5rem;
}
.badge-meta .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.badge-meta strong { color: var(--ink); font-weight: 650; }

.hero h1 { font-size: var(--fs-900); letter-spacing: -0.03em; }
.hero h1 .accent { color: var(--accent-strong); }

/* Rotating industry word in the hero headline */
.rotator { color: var(--accent-strong); display: inline-block; white-space: nowrap; }
.js .rotator .word {
  display: inline-block;
  animation: word-in 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes word-in {
  from { opacity: 0; transform: translateY(0.55em); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .js .rotator .word { animation: none; }
}
.hero-sub {
  color: var(--ink-2);
  font-size: var(--fs-600);
  max-width: 46ch;
  margin-top: 1.25rem;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 2rem; }
.hero-proof {
  display: flex; flex-wrap: wrap; gap: 1.75rem;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.hero-proof .stat b { display: block; font-size: 1.35rem; letter-spacing: -0.02em; }
.hero-proof .stat span { color: var(--ink-3); font-size: var(--fs-300); }

/* ---------- Phone frame + WhatsApp chat ---------- */
.phone {
  width: min(330px, 88vw);
  border-radius: var(--r-xl);
  background: #0f172a; /* bezel */
  border: 1px solid rgba(15, 23, 42, 0.2);
  box-shadow:
    var(--shadow-lg),
    0 0 0 6px rgba(15, 23, 42, 0.04),
    0 0 90px var(--accent-dim);
  overflow: hidden;
  position: relative;
}
.phone-status {
  display: flex; justify-content: space-between;
  padding: 0.55rem 1.15rem 0.35rem;
  background: var(--wa-header);
  color: var(--wa-meta);
  font-size: 0.65rem;
  font-weight: 600;
}
.wa-header {
  display: flex; align-items: center; gap: 0.65rem;
  padding: 0.55rem 0.9rem 0.7rem;
  background: var(--wa-header);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}
.wa-back { color: var(--wa-meta); font-size: 1.1rem; line-height: 1; }
.wa-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent-text);
  display: grid; place-items: center;
  font-weight: 700; font-size: 0.8rem;
  flex-shrink: 0;
}
.wa-title { line-height: 1.25; min-width: 0; }
.wa-title b {
  display: flex; align-items: center; gap: 0.3rem;
  font-size: 0.85rem; color: var(--wa-ink); font-weight: 600;
  white-space: nowrap;
}
.wa-verified {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  display: inline-grid; place-items: center;
  font-size: 0.55rem; font-weight: 800;
  flex-shrink: 0;
}
.wa-title span { display: block; font-size: 0.68rem; color: var(--wa-meta); }
.wa-header-icons { margin-left: auto; color: var(--wa-meta); font-size: 0.85rem; letter-spacing: 0.4em; }

.wa-chat {
  background:
    radial-gradient(circle at 20% 10%, rgba(62, 171, 152, 0.05), transparent 45%),
    var(--wa-bg);
  padding: 0.9rem 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 430px;
}
.wa-chat--live {
  height: 430px;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: none;
}
.wa-chat--live::-webkit-scrollbar { display: none; }

.wa-day {
  align-self: center;
  background: #ffffff;
  color: #54656f;
  font-size: 0.62rem;
  padding: 0.25rem 0.7rem;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 0.25rem;
}

.msg {
  max-width: 84%;
  padding: 0.5rem 0.65rem 0.4rem;
  border-radius: 10px;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--wa-ink);
  position: relative;
  width: fit-content;
  box-shadow: var(--shadow-sm);
}
.msg .meta {
  display: flex; justify-content: flex-end; align-items: center; gap: 0.25rem;
  font-size: 0.6rem; color: var(--wa-meta);
  margin-top: 0.15rem;
}
.msg .ticks { color: var(--wa-ticks); font-size: 0.62rem; letter-spacing: -0.12em; }
.msg.in { background: var(--wa-in); align-self: flex-start; border-top-left-radius: 3px; }
.msg.out { background: var(--wa-out); align-self: flex-end; border-top-right-radius: 3px; }

/* Interactive / quick-reply buttons under a business message */
.wa-btns {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  align-self: flex-start;
  width: 84%;
}
.wa-btn {
  background: var(--wa-in);
  border: none;
  color: var(--wa-link);
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  cursor: pointer;
  transition: background 0.15s ease;
}
.wa-btn:hover { background: #f5f6f6; }
.wa-btn:disabled { opacity: 0.55; cursor: default; }

/* Rich cards inside chat (catalog, payment) */
.wa-card {
  background: rgba(15, 23, 42, 0.045);
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
  margin: -0.1rem -0.15rem 0.35rem;
  font-size: 0.75rem;
}
.wa-card b { display: block; font-size: 0.78rem; }
.wa-card .rows { margin-top: 0.3rem; display: grid; gap: 0.2rem; color: #3b4a54; }
.wa-card .row { display: flex; justify-content: space-between; gap: 0.75rem; }
.wa-card .row span:last-child { color: var(--wa-ink); font-weight: 600; white-space: nowrap; }
.wa-pay {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--accent-dim);
  border: 1px solid rgba(62, 171, 152, 0.4);
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
  margin-top: 0.35rem;
  color: var(--accent-text);
  font-weight: 600;
  font-size: 0.75rem;
}

.wa-typing {
  display: inline-flex; gap: 4px;
  background: var(--wa-in);
  border-radius: 10px; border-top-left-radius: 3px;
  padding: 0.65rem 0.8rem;
  box-shadow: var(--shadow-sm);
  align-self: flex-start;
}
.wa-typing i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--wa-meta);
  animation: typing 1.1s infinite;
}
.wa-typing i:nth-child(2) { animation-delay: 0.18s; }
.wa-typing i:nth-child(3) { animation-delay: 0.36s; }
@keyframes typing {
  0%, 60%, 100% { opacity: 0.35; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

.wa-input {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.55rem 0.75rem 0.8rem;
  background: var(--wa-header);
}
.wa-input .field {
  flex: 1;
  background: #ffffff;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  color: var(--wa-meta);
  font-size: 0.75rem;
  box-shadow: var(--shadow-sm);
}
.wa-input .mic {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid; place-items: center;
  font-size: 0.8rem;
}

.demo-hint {
  text-align: center;
  color: var(--ink-3);
  font-size: var(--fs-300);
  margin-top: 0.9rem;
}
.demo-hint button {
  background: none; border: none; color: var(--accent-text);
  font: inherit; font-weight: 600; cursor: pointer; padding: 0;
}

/* ---------- Scroll-reveal for static chat bubbles ----------
   Hiding is scoped to html.js (set by main.js) so content is
   always visible when JavaScript doesn't run. */
.js .reveal-seq > .msg,
.js .reveal-seq > .wa-btns,
.js .reveal-seq > .wa-day {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.js .reveal-seq.on > .msg,
.js .reveal-seq.on > .wa-btns,
.js .reveal-seq.on > .wa-day {
  opacity: 1;
  transform: none;
}

.js .fade-up {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.js .fade-up.on { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal-seq > *, .fade-up { opacity: 1 !important; transform: none !important; transition: none !important; }
  .wa-typing i { animation: none; }
  .btn { transition: none; }
}

/* ---------- Proof bar ---------- */
.proof-bar {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  padding: 2.25rem 0;
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
@media (max-width: 760px) { .proof-grid { grid-template-columns: repeat(2, 1fr); } }
.proof-grid b { display: block; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.02em; }
.proof-grid b em { font-style: normal; color: var(--accent-strong); }
.proof-grid span { color: var(--ink-3); font-size: var(--fs-300); }
.logo-row {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 2.5rem;
  margin-top: 2.25rem;
  color: var(--ink-3);
  font-weight: 650;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.logo-row span { opacity: 0.85; transition: opacity 0.2s, color 0.2s; white-space: nowrap; }
.logo-row span:hover { opacity: 1; color: var(--ink-2); }

/* ---------- Solution showcase ---------- */
.showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}
.showcase + .showcase { border-top: 1px solid var(--line); }
.showcase:nth-child(even) .showcase-visual { order: -1; }
@media (max-width: 900px) {
  .showcase { grid-template-columns: 1fr; }
  .showcase:nth-child(even) .showcase-visual { order: 0; }
  .showcase-visual { justify-self: center; }
}
.showcase h3 { font-size: var(--fs-700); }
.showcase .tag {
  display: inline-block;
  font-size: var(--fs-200);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: var(--accent-dim);
  border: 1px solid rgba(62, 171, 152, 0.3);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.showcase p { color: var(--ink-2); margin-top: 0.85rem; max-width: 48ch; }
.showcase ul {
  margin: 1.25rem 0 0; padding: 0; list-style: none;
  display: grid; gap: 0.6rem;
  color: var(--ink-2); font-size: var(--fs-400);
}
.showcase ul li { display: flex; gap: 0.6rem; align-items: baseline; }
.showcase ul li::before { content: "✓"; color: var(--accent-strong); font-weight: 700; flex-shrink: 0; }
.showcase .link {
  display: inline-block; margin-top: 1.5rem;
  color: var(--accent-text); font-weight: 600; text-decoration: none; font-size: var(--fs-400);
}
.showcase .link:hover { text-decoration: underline; }

.showcase-visual { position: relative; }
.visual-stack { position: relative; width: fit-content; }

/* Small floating dashboard/result tiles next to phones */
.float-tile {
  position: absolute;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 0.8rem 1rem;
  box-shadow: var(--shadow-md);
  font-size: var(--fs-300);
  z-index: 2;
  min-width: 150px;
}
.float-tile b { display: block; font-size: 1.15rem; letter-spacing: -0.02em; }
.float-tile .up { color: var(--accent-text); font-weight: 700; }
.float-tile span { color: var(--ink-3); }
.float-tile .msg.in { border: 1px solid var(--line); box-shadow: none; }
.ft-tr { top: 8%; right: -3.25rem; }
.ft-br { bottom: 10%; right: -3.5rem; }
.ft-bl { bottom: 14%; left: -3.5rem; }
@media (max-width: 480px) {
  .ft-tr, .ft-br { right: -0.5rem; }
  .ft-bl { left: -0.5rem; }
}

/* Panel-style visuals (composer, inbox, dashboard) */
.app-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  width: min(430px, 92vw);
  font-size: var(--fs-300);
}
.app-panel-head {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-weight: 600;
}
.app-panel-head .dots { display: flex; gap: 5px; margin-right: 0.4rem; }
.app-panel-head .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.app-panel-body { padding: 1rem; display: grid; gap: 0.75rem; }

.field-row {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.6rem 0.85rem;
}
.field-row label { color: var(--ink-3); font-weight: 600; }
.field-row .val { color: var(--ink); font-weight: 600; text-align: right; }
.field-row .val .chip-mini {
  display: inline-block;
  background: var(--accent-dim); color: var(--accent-text);
  border-radius: 6px; padding: 0.05rem 0.45rem;
  font-size: 0.7rem; font-weight: 700; margin-left: 0.3rem;
}

.stat-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem;
}
.stat-strip .cell {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.6rem 0.7rem;
  text-align: center;
}
.stat-strip b { display: block; font-size: 1.05rem; color: var(--accent-strong); }
.stat-strip span { color: var(--ink-3); font-size: 0.68rem; }

/* Inbox rows (support handoff) */
.inbox-row {
  display: flex; align-items: center; gap: 0.7rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.6rem 0.75rem;
}
.inbox-row .wa-avatar { width: 30px; height: 30px; font-size: 0.7rem; }
.inbox-row .who b { display: block; font-size: 0.8rem; }
.inbox-row .who span { color: var(--ink-3); font-size: 0.7rem; }
.inbox-row .pill {
  margin-left: auto;
  font-size: 0.65rem; font-weight: 700;
  padding: 0.2rem 0.55rem; border-radius: 999px;
  white-space: nowrap;
}
.pill-bot { background: var(--accent-dim); color: var(--accent-text); }
.pill-human { background: rgba(2, 126, 181, 0.1); color: var(--wa-link); }

/* Ad mock (lead gen) */
.ad-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  width: 230px;
  font-size: 0.72rem;
}
.ad-card .ad-head { display: flex; align-items: center; gap: 0.5rem; padding: 0.55rem 0.7rem; }
.ad-card .ad-head b { font-size: 0.75rem; display: block; line-height: 1.2; }
.ad-card .ad-head span { color: var(--ink-3); font-size: 0.62rem; }
.ad-card .ad-img {
  height: 100px;
  background:
    radial-gradient(circle at 70% 30%, rgba(62, 171, 152, 0.3), transparent 60%),
    linear-gradient(135deg, #d9f0ea, #f2faf8);
  display: grid; place-items: center;
  color: var(--accent-text); font-weight: 700; letter-spacing: 0.04em;
}
.ad-card .ad-cta {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.55rem 0.7rem;
  border-top: 1px solid var(--line);
}
.ad-card .ad-cta .btn-wa {
  background: var(--accent); color: var(--accent-ink);
  border-radius: 7px; padding: 0.3rem 0.7rem;
  font-weight: 700; font-size: 0.68rem;
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3rem;
  counter-reset: step;
}
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.step:hover { border-color: rgba(62, 171, 152, 0.5); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-size: var(--fs-300);
  font-weight: 700;
  color: var(--accent-text);
  letter-spacing: 0.08em;
}
.step h3 { font-size: var(--fs-500); margin-top: 0.6rem; }
.step p { color: var(--ink-2); font-size: var(--fs-400); margin-top: 0.5rem; }
.step .mini {
  margin-top: 1.1rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.55rem 0.75rem;
  font-size: 0.72rem;
  color: var(--ink-2);
  display: flex; align-items: center; gap: 0.5rem;
}
.step .mini .ok { color: var(--accent-strong); font-weight: 700; }

/* ---------- Bento grids (industries, integrations, trust) ---------- */
.bento {
  display: grid;
  gap: 1rem;
  margin-top: 3rem;
}
.bento-4 { grid-template-columns: repeat(4, 1fr); }
.bento-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) { .bento-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) { .bento-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .bento-4, .bento-3 { grid-template-columns: 1fr; } }

.tile {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.6rem;
  text-decoration: none;
  display: block;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}
.tile:hover {
  border-color: rgba(62, 171, 152, 0.5);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.tile .icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: grid; place-items: center;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}
.tile h3 { font-size: var(--fs-500); }
.tile p { color: var(--ink-2); font-size: var(--fs-400); margin-top: 0.5rem; }
.tile .go {
  color: var(--accent-text); font-weight: 600; font-size: var(--fs-300);
  margin-top: 1rem; display: inline-block;
}

/* Integration logo tiles */
.int-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3rem;
}
@media (max-width: 860px) { .int-grid { grid-template-columns: repeat(2, 1fr); } }
.int-tile {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.25rem;
  display: flex; align-items: center; gap: 0.85rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease;
}
.int-tile:hover { border-color: rgba(62, 171, 152, 0.5); }
.int-tile .mono {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--bg-2); border: 1px solid var(--line);
  display: grid; place-items: center;
  font-weight: 800; color: var(--ink-2); font-size: 0.9rem;
  flex-shrink: 0;
}
.int-tile b { display: block; font-size: var(--fs-400); }
.int-tile span { color: var(--ink-3); font-size: var(--fs-300); }

/* ---------- Trust ---------- */
.trust { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust .tile { background: var(--panel); }

/* ---------- Case studies ---------- */
.case {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.case:hover { border-color: rgba(62, 171, 152, 0.5); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.case .metric { font-size: clamp(2rem, 4vw, 2.6rem); font-weight: 700; letter-spacing: -0.03em; color: var(--accent-strong); }
.case .metric-label { color: var(--ink-2); font-size: var(--fs-400); margin-top: 0.2rem; }
.case blockquote {
  margin: 1.25rem 0 0;
  color: var(--ink-2);
  font-size: var(--fs-400);
  border-left: 2px solid var(--accent);
  padding-left: 0.9rem;
}
.case .who { margin-top: auto; padding-top: 1.5rem; font-size: var(--fs-300); color: var(--ink-3); }
.case .who b { color: var(--ink); display: block; font-size: var(--fs-400); }

/* ---------- Engagement / pricing ---------- */
.engage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 3rem;
}
@media (max-width: 860px) { .engage-grid { grid-template-columns: 1fr; } }
.engage {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.engage .n {
  font-size: var(--fs-300); font-weight: 700; color: var(--accent-text); letter-spacing: 0.08em;
}
.engage h3 { font-size: var(--fs-600); margin-top: 0.5rem; }
.engage p { color: var(--ink-2); font-size: var(--fs-400); margin-top: 0.6rem; }

/* ---------- Final CTA ---------- */
.final-cta {
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: "";
  position: absolute;
  bottom: -55%; left: 50%;
  width: 800px; height: 500px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(62, 171, 152, 0.14), transparent 70%);
  pointer-events: none;
}
.final-cta h2 { font-size: var(--fs-800); max-width: 24ch; margin: 0 auto; position: relative; }
.final-cta p { color: var(--ink-2); margin: 1.25rem auto 0; max-width: 48ch; position: relative; }
.final-cta .hero-ctas { justify-content: center; position: relative; }
.final-cta .small { margin-top: 1.25rem; color: var(--ink-3); position: relative; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding: 3.5rem 0 2.5rem;
  font-size: var(--fs-400);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }
footer h4 { font-size: var(--fs-300); text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-3); margin-bottom: 1rem; }
footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
footer a { color: var(--ink-2); text-decoration: none; }
footer a:hover { color: var(--accent-text); }
.footer-note {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  color: var(--ink-3); font-size: var(--fs-300);
}

/* ---------- Blog ---------- */
.tag-pill {
  display: inline-block;
  font-size: var(--fs-200);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-text);
  background: var(--accent-dim);
  border: 1px solid rgba(62, 171, 152, 0.3);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 3rem;
}
@media (max-width: 900px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .blog-grid { grid-template-columns: 1fr; } }
.post-meta {
  color: var(--ink-3);
  font-size: var(--fs-300);
  display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
}
.post-meta .sep::before { content: "·"; }
.tile .post-meta { margin-top: 1.1rem; }

.article {
  max-width: 720px;
  margin: 0 auto;
}
.article h1 { font-size: var(--fs-800); letter-spacing: -0.03em; }
.article .post-meta { margin-top: 1.25rem; }
.article h2 { font-size: var(--fs-700); margin-top: 2.75rem; }
.article h3 { font-size: var(--fs-600); margin-top: 2rem; }
.article p { margin-top: 1.1rem; color: var(--ink-2); }
.article ul, .article ol { color: var(--ink-2); margin-top: 1.1rem; padding-left: 1.4rem; display: grid; gap: 0.5rem; }
.article strong { color: var(--ink); }
.article .callout {
  margin-top: 2rem;
  background: var(--accent-dim);
  border: 1px solid rgba(62, 171, 152, 0.3);
  border-radius: var(--r-md);
  padding: 1.25rem 1.5rem;
  color: var(--ink-2);
}
.article .callout b { color: var(--ink); }
.article .stat-strip { margin-top: 2rem; }
.article figure { margin: 2.5rem 0; display: grid; justify-items: center; gap: 0.75rem; }
.article figcaption { color: var(--ink-3); font-size: var(--fs-300); }

/* ---------- Industry page hero variant ---------- */
.page-hero { padding: clamp(3rem, 6vw, 5rem) 0 0; }
.breadcrumb { font-size: var(--fs-300); color: var(--ink-3); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--ink-3); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-text); }

/* ============================================================
   Mobile experience — enterprise polish
   ============================================================ */

/* --- Accessible hamburger navigation --- */
.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 44px;
    height: 44px;
    background: none;
    border: 1px solid var(--line);
    border-radius: 10px;
    cursor: pointer;
    order: 3;
    flex-shrink: 0;
  }
  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  /* Dropdown panel replaces the hidden desktop links */
  .nav-links {
    display: grid;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    margin-left: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 0.5rem 1.25rem 1rem;
    z-index: 49;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .nav-links.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links a {
    display: flex;
    align-items: center;
    min-height: 48px; /* comfortable touch target */
    padding: 0.4rem 0.25rem;
    font-size: 1rem;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
  }
  .nav-links a:last-child { border-bottom: none; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-links, .nav-toggle span { transition: none; }
}

/* --- Small-screen layout: no overlapping proof tiles --- */
@media (max-width: 640px) {
  .visual-stack { display: grid; justify-items: center; }
  .float-tile {
    position: static;
    margin: 1rem auto 0;
    width: fit-content;
    max-width: min(330px, 88vw);
  }
}

/* --- Phone-width grids & density --- */
@media (max-width: 480px) {
  .int-grid { grid-template-columns: 1fr; }
  .hero-proof { gap: 1.1rem 1.5rem; }
  .logo-row { gap: 1rem 1.5rem; font-size: 0.85rem; }
  .steps { gap: 0.75rem; }
  .bento { gap: 0.75rem; }
}

/* --- Notched-device safe areas --- */
@supports (padding: max(0px)) {
  .container {
    padding-left: max(clamp(1.25rem, 4vw, 2rem), env(safe-area-inset-left));
    padding-right: max(clamp(1.25rem, 4vw, 2rem), env(safe-area-inset-right));
  }
}

/* --- Compact nav row at phone width (logo + CTA + toggle must fit 375px) --- */
@media (max-width: 480px) {
  .nav-inner { gap: 0.5rem; }
  .nav .btn { font-size: 0.75rem; padding: 0.5rem 0.8rem; }
  .logo { font-size: 1rem; gap: 0.4rem; }
  .logo-mark { width: 24px; height: 24px; font-size: 0.8rem; border-radius: 8px; }
}

/* --- Brand wordmark logo --- */
.logo-img { height: 26px; width: auto; display: block; }
@media (max-width: 480px) { .logo-img { height: 21px; } }