/* --------------------------------------------------------------------------
   Design tokens — aligned with the Mac Upgraded master design system.
   NFC Pocket keeps its signature indigo→violet→sky gradient, now light + dark.
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* ---- Native Mac Studio — warm neutral surfaces ---- */
  --paper: #f7f4ee;
  --bg: #f7f4ee;
  --surface: #fbf8f1;
  --surface-2: #fbf8f1;
  --card: #fffdf8;
  --sunken: #ece7dc;
  --ink-tile: #1b1a16;

  /* Warm graphite ink ramp */
  --ink: #1b1a16;
  --ink-2: #514d44;
  --ink-3: #807a6c;
  --ink-4: #a8a193;
  --muted: #514d44;

  /* Single confident accent — NFC Pocket indigo/violet (no gradient) */
  --accent: #6246e8;
  --accent-ink: #4e36c0;
  --accent-bright: #7c5cf5;
  --accent-soft: rgba(98, 70, 232, 0.12);
  --accent-line: rgba(98, 70, 232, 0.35);
  --indigo: #6246e8;
  --violet: #6246e8;
  --sky: #6246e8;

  /* Hairlines */
  --line: rgba(27, 26, 22, 0.12);
  --line-2: rgba(27, 26, 22, 0.20);
  --line-faint: rgba(27, 26, 22, 0.07);
  --border: rgba(27, 26, 22, 0.12);
  --border-strong: rgba(27, 26, 22, 0.20);
  --bg-glass: color-mix(in srgb, var(--paper) 85%, transparent);

  --grad: var(--accent);
  --radius: 14px;
  --radius-pill: 999px;
  --shadow: 0 1px 0 rgba(27,26,22,0.04), 0 10px 30px -22px rgba(27,26,22,0.4);
  --maxw: 1120px;

  /* Type */
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: "Space Grotesk", var(--sans);
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

/* ---- Dark theme: follow system unless user forced light ---- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #15140f;
    --bg: #15140f;
    --surface: #1c1a14;
    --surface-2: #211e17;
    --card: #1c1a14;
    --sunken: #0d0c09;
    --ink-tile: #f2eee3;
    --ink: #f3efe4;
    --ink-2: #c3bcac;
    --ink-3: #8c8575;
    --ink-4: #635d50;
    --muted: #c3bcac;
    --accent: #9a86f5;
    --accent-ink: #b1a2f8;
    --accent-bright: #b1a2f8;
    --accent-soft: rgba(154, 134, 245, 0.17);
    --accent-line: rgba(154, 134, 245, 0.4);
    --indigo: #9a86f5;
    --violet: #9a86f5;
    --sky: #9a86f5;
    --line: rgba(246, 240, 228, 0.13);
    --line-2: rgba(246, 240, 228, 0.22);
    --line-faint: rgba(246, 240, 228, 0.07);
    --border: rgba(246, 240, 228, 0.13);
    --border-strong: rgba(246, 240, 228, 0.22);
    --bg-glass: color-mix(in srgb, var(--paper) 85%, transparent);
    --shadow: 0 1px 0 rgba(0,0,0,0.5), 0 12px 34px -24px rgba(0,0,0,0.8);
  }
}

/* ---- Dark theme: user forced ---- */
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #15140f;
  --bg: #15140f;
  --surface: #1c1a14;
  --surface-2: #211e17;
  --card: #1c1a14;
  --sunken: #0d0c09;
  --ink-tile: #f2eee3;
  --ink: #f3efe4;
  --ink-2: #c3bcac;
  --ink-3: #8c8575;
  --ink-4: #635d50;
  --muted: #c3bcac;
  --accent: #9a86f5;
  --accent-ink: #b1a2f8;
  --accent-bright: #b1a2f8;
  --accent-soft: rgba(154, 134, 245, 0.17);
  --accent-line: rgba(154, 134, 245, 0.4);
  --indigo: #9a86f5;
  --violet: #9a86f5;
  --sky: #9a86f5;
  --line: rgba(246, 240, 228, 0.13);
  --line-2: rgba(246, 240, 228, 0.22);
  --line-faint: rgba(246, 240, 228, 0.07);
  --border: rgba(246, 240, 228, 0.13);
  --border-strong: rgba(246, 240, 228, 0.22);
  --bg-glass: color-mix(in srgb, var(--paper) 85%, transparent);
  --shadow: 0 1px 0 rgba(0,0,0,0.5), 0 12px 34px -24px rgba(0,0,0,0.8);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--sans);
  color: var(--ink); background: var(--bg); line-height: 1.55;
  font-feature-settings: normal;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  transition: background-color 0.3s cubic-bezier(0.16,1,0.3,1), color 0.3s cubic-bezier(0.16,1,0.3,1);
}
::selection { background: color-mix(in srgb, var(--violet) 22%, transparent); }
:focus-visible { outline: 2.5px solid var(--violet); outline-offset: 3px; border-radius: 4px; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* Navbar */
.navbar-wrapper { position: sticky; top: 0; z-index: 50; padding: 14px 16px; }
.navbar {
  max-width: var(--maxw); margin: 0 auto; display: flex; align-items: center; gap: 20px;
  padding: 10px 14px 10px 16px; border-radius: 999px; border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(180%) blur(18px); box-shadow: 0 8px 30px rgba(20,20,50,0.08);
}
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.brand-icon { width: 30px; height: 30px; border-radius: 8px; }
.nav-back-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: all .2s;
  white-space: nowrap;
}
.nav-back-pill:hover {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
  transform: translateX(-2px);
}
.nav-links { display: flex; gap: 6px; list-style: none; margin-left: auto; }
.nav-link { padding: 8px 14px; border-radius: 999px; font-weight: 600; font-size: 15px; color: var(--muted); transition: .2s; }
.nav-link:hover { color: var(--ink); background: var(--surface); }

/* Theme toggle (master pattern) */
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-links + .nav-right { margin-left: 0; }
.theme-toggle {
  width: 38px; height: 38px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--muted); border: 1px solid var(--border); background: transparent;
  transition: color .2s, background .2s, transform .2s;
}
.theme-toggle:hover { color: var(--ink); background: var(--surface); transform: translateY(-1px); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}
.nav-cta { padding: 10px 20px; border-radius: 999px; background: var(--grad); color: #fff; font-weight: 700; font-size: 15px; box-shadow: 0 8px 20px rgba(79,70,229,0.35); transition: transform .15s; }
.nav-cta:hover { transform: translateY(-1px); }
@media (max-width: 720px) { .nav-links { display: none; } .nav-brand { margin-right: auto; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; padding: 15px 26px; border-radius: 16px; border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 14px 34px rgba(79,70,229,0.4); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 42px rgba(79,70,229,0.5); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { transform: translateY(-2px); }
.btn-lg { font-size: 18px; padding: 18px 34px; }

/* Hero */
.hero { padding: 60px 0 40px; position: relative; }
.hero::before { content: ""; position: absolute; inset: 0; background:
  radial-gradient(680px 420px at 78% 8%, rgba(124,58,237,.20), transparent 60%),
  radial-gradient(620px 420px at 10% 30%, rgba(14,165,233,.16), transparent 60%);
  z-index: -1; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; font-weight: 700; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--violet); padding: 7px 14px; border-radius: 999px; background: color-mix(in srgb, var(--violet) 12%, transparent); }
.hero-title { font-size: clamp(40px, 6vw, 68px); line-height: 1.03; font-weight: 800; letter-spacing: -.03em; margin: 20px 0 18px; }
.hero-title em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { font-size: 19px; color: var(--muted); max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 20px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { font-size: 14px; font-weight: 600; color: var(--ink); background: var(--surface); border: 1px solid var(--border); padding: 8px 16px; border-radius: 999px; }

.hero-phone { display: flex; justify-content: center; }
.phone {
  position: relative;
  width: 300px;
  padding: 11px;
  border-radius: 46px;
  background: linear-gradient(150deg, #e4e7ec, #ffffff 40%, #cbd5e1);
  box-shadow: 0 24px 60px rgba(30, 27, 75, 0.12), 0 4px 16px rgba(0, 0, 0, 0.04), inset 0 0 0 1px rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border);
}
:root[data-theme="dark"] .phone {
  background: linear-gradient(150deg, #2a2d34, #1b1d22 40%, #0f1115);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 4px 16px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .phone {
    background: linear-gradient(150deg, #2a2d34, #1b1d22 40%, #0f1115);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 4px 16px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  }
}
.phone img { border-radius: 36px; width: 100%; display: block; }
.phone-notch { position: absolute; top: 19px; left: 50%; transform: translateX(-50%); width: 88px; height: 22px; background: #0f172a; border-radius: 14px; z-index: 2; }
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin: 0 auto; } .hero-actions, .hero-badges { justify-content: center; }
  .hero-phone { margin-top: 14px; }
}

/* Sections */
section { padding: 74px 0; }
.section-title { font-size: clamp(30px, 4.4vw, 44px); font-weight: 800; letter-spacing: -.025em; text-align: center; }
.section-sub { text-align: center; color: var(--muted); font-size: 18px; max-width: 640px; margin: 14px auto 0; }

/* Showcase */
.showcase { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.shot-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; margin-top: 44px; max-width: 840px; margin-inline: auto; }
.shot-row img {
  width: 100%;
  height: auto;
  aspect-ratio: 1320 / 2868;
  object-fit: cover;
  border-radius: 26px;
  box-shadow: 0 20px 50px rgba(30, 27, 75, 0.10), 0 4px 16px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border);
  transition: transform .22s ease, box-shadow .22s ease;
}
.shot-row img:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 64px rgba(79, 70, 229, 0.14);
}
@media (max-width: 760px) { .shot-row { grid-template-columns: 1fr; max-width: 360px; margin-inline: auto; } }

/* Feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: transform .18s, box-shadow .18s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.ficon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: color-mix(in srgb, var(--c) 15%, transparent); margin-bottom: 16px; }
.ficon svg { width: 28px; height: 28px; fill: none; stroke: var(--c); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 15.5px; }
@media (max-width: 900px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .feature-grid { grid-template-columns: 1fr; } }

/* How */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 46px; }
.step { text-align: center; padding: 8px; }
.step-n { display: inline-grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 800; font-size: 22px; margin-bottom: 16px; box-shadow: 0 10px 24px rgba(79,70,229,.35); }
.step h3 { font-size: 20px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 15.5px; max-width: 320px; margin: 0 auto; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* Privacy */
.privacy { background: var(--surface); }
.privacy-inner { text-align: center; }
.privacy-badge { width: 84px; height: 84px; border-radius: 24px; background: var(--grad); display: grid; place-items: center; margin: 0 auto 22px; box-shadow: 0 16px 36px rgba(79,70,229,.4); }
.privacy-badge svg { width: 44px; height: 44px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* FAQ */
.faq .container { max-width: 780px; }
details { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px 22px; margin-top: 14px; }
details[open] { box-shadow: var(--shadow); }
summary { font-weight: 700; font-size: 17px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::after { content: "+"; font-size: 24px; color: var(--muted); font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin-top: 12px; font-size: 15.5px; }

/* CTA */
.cta-inner { text-align: center; }
.cta-icon { width: 92px; height: 92px; border-radius: 22px; margin: 0 auto 22px; box-shadow: var(--shadow); }
.cta h2 { font-size: clamp(30px, 4.4vw, 44px); font-weight: 800; letter-spacing: -.025em; }
.cta p { color: var(--muted); font-size: 18px; max-width: 520px; margin: 14px auto 26px; }
.cta-note { font-size: 14px; color: var(--muted); margin-top: 16px; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: var(--muted); font-weight: 600; font-size: 15px; }
.footer-links a:hover { color: var(--ink); }
.footer-copy { color: var(--muted); font-size: 14px; }

/* Launching Soon Badges */
.launching-soon-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-size: 15.5px;
  font-weight: 700;
  background: var(--ink);
  color: var(--bg);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.18);
  user-select: none;
}

.launching-soon-pill .live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-dot 2s infinite ease-in-out;
}

.launching-soon-badge-large {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  font-size: 17px;
  font-weight: 800;
  background: var(--ink);
  color: var(--bg);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.2);
  user-select: none;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ==========================================================================
   Native Mac Studio retrofit — flat toolbar, mono strip, display type,
   single accent, accent underline marker.
   ========================================================================== */
::selection { background: var(--accent-soft); color: var(--ink); }

/* Mono studio status strip */
.topstrip { border-bottom: 1px solid var(--line-faint); background: var(--surface-2);
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink-3); }
.topstrip-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 34px; }
.topstrip .dotok { color: #3f7d4e; }
:root[data-theme="dark"] .topstrip .dotok { color: #5cb570; }
.topstrip .sep { color: var(--ink-4); margin: 0 8px; }
@media (max-width: 640px) { .topstrip-right { display: none; } }

/* Flat full-width toolbar with bottom hairline */
.navbar-wrapper { padding: 0;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); }
.navbar { max-width: var(--maxw); height: 64px; gap: 20px;
  background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none;
  border: none; border-radius: 0; box-shadow: none; padding: 0 24px; }
.brand-icon { border-radius: 8px; }
.nav-brand { font-family: var(--display); }
.nav-back-pill { border-radius: 7px; font-family: var(--mono); font-weight: 500;
  font-size: 11.5px; background: var(--surface-2); border-color: var(--line); }
.nav-link { font-weight: 500; border-radius: 7px; }
.nav-link:hover { color: var(--ink); background: var(--surface-2); }
.nav-cta { border-radius: 8px; background: var(--ink); color: var(--paper); font-weight: 600;
  box-shadow: none; }
.nav-cta:hover { background: var(--accent); color: #fff; }
:root[data-theme="dark"] .nav-cta { color: #1b1a16; }
:root[data-theme="dark"] .nav-cta:hover { color: #1b1a16; }

/* Hero eyebrow → mono bracketed chip */
.eyebrow { font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--ink-2); background: var(--surface-2);
  border: 1px solid var(--line-2); border-radius: 7px; padding: 6px 12px; }

/* Display typography + accent underline marker on hero emphasis */
.hero-title, .section-title, .feature-card h3, .step h3, .cta h2 { font-family: var(--display); letter-spacing: -0.03em; }
.hero-title em { position: relative; white-space: nowrap; color: var(--ink);
  -webkit-text-fill-color: var(--ink); background: none; }
.hero-title em::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0.06em;
  height: 0.26em; background: var(--accent-soft); border-bottom: 2px solid var(--accent); z-index: -1; }

/* Buttons: ink → accent on hover, flat tight radius */
.btn { border-radius: var(--radius); box-shadow: none; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--accent); color: #fff; box-shadow: none; }
:root[data-theme="dark"] .btn-primary { color: #1b1a16; }
:root[data-theme="dark"] .btn-primary:hover { color: #1b1a16; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-2); }
.btn-ghost:hover { background: var(--surface-2); }

/* Flat cards + mono metadata + accent solids */
.pill { font-family: var(--mono); font-size: 11.5px; font-weight: 500; border-radius: 7px;
  background: var(--surface-2); border: 1px solid var(--line-2); color: var(--ink-2); }
.feature-card { border-radius: var(--radius); box-shadow: none; }
.feature-card:hover { box-shadow: var(--shadow); }
.step-n, .privacy-badge { background: var(--accent); box-shadow: none; }
.cta-icon { box-shadow: var(--shadow); }
details { border-radius: var(--radius); }
summary::after { color: var(--accent); }
.launching-soon-pill, .launching-soon-badge-large { border-radius: 8px; box-shadow: none; }
.showcase { background: var(--surface-2); }
.privacy { background: var(--surface-2); }