/* Tine — landing page. Self-contained: no external fonts, no trackers. */

:root {
  --accent:        #10b981;
  --accent-deep:   #059669;
  --accent-soft:   #d6f3e8;
  --ink:           #11241d;
  --ink-soft:      #3f5650;
  --ink-faint:     #6b837c;
  --bg:            #ffffff;
  --bg-tint:       #f4faf7;
  --bg-band:       #f0f7f4;
  --line:          #e3ece8;
  --card:          #ffffff;
  --shadow:        0 1px 2px rgba(16,40,32,.05), 0 8px 28px rgba(16,40,32,.07);
  --shadow-lg:     0 12px 50px rgba(16,40,32,.16);
  --radius:        14px;
  --maxw:          1080px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent:      #2ee6a6;
    --accent-deep: #10b981;
    --accent-soft: #11342a;
    --ink:         #e8f1ed;
    --ink-soft:    #aebfb8;
    --ink-faint:   #7f928b;
    --bg:          #0c1714;
    --bg-tint:     #0f1d18;
    --bg-band:     #101f1a;
    --line:        #20322b;
    --card:        #11201b;
    --shadow:      0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.35);
    --shadow-lg:   0 18px 60px rgba(0,0,0,.5);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
em { font-style: italic; }
code, kbd {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: .88em;
}
code { color: var(--accent-deep); background: var(--accent-soft); padding: .08em .38em; border-radius: 5px; }
kbd {
  background: var(--bg-tint); border: 1px solid var(--line); border-bottom-width: 2px;
  border-radius: 5px; padding: .04em .4em; color: var(--ink-soft); font-size: .8em;
}

h1, h2, h3 { line-height: 1.12; letter-spacing: -.02em; margin: 0; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.12rem; letter-spacing: -.01em; }
.accent { color: var(--accent); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .7rem clamp(1rem, 4vw, 2.2rem);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: .5rem; color: var(--accent); font-weight: 800; }
.brand:hover { text-decoration: none; }
.brand-word { font-size: 1.3rem; letter-spacing: -.03em; color: var(--ink); }
.mark { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: clamp(.5rem, 2vw, 1.6rem); font-size: .95rem; }
.nav-links a { color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-cta {
  background: var(--accent); color: #042b20 !important; font-weight: 700;
  padding: .42rem .9rem; border-radius: 9px;
}
.nav-cta:hover { background: var(--accent-deep); text-decoration: none; }
@media (max-width: 620px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ---------- hero ---------- */
.hero { position: relative; text-align: center; padding: clamp(3rem, 7vw, 5.5rem) 1.2rem 0; overflow: hidden; }
.hero-glow {
  position: absolute; inset: -30% 0 auto 0; height: 620px; pointer-events: none;
  background:
    radial-gradient(closest-side at 50% 0%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 70%);
  opacity: .8;
}
.hero-inner { position: relative; max-width: 760px; margin: 0 auto; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .14em; font-size: .74rem; font-weight: 700;
  color: var(--accent-deep); margin: 0 0 1.1rem;
}
.hero h1 { font-size: clamp(2.3rem, 6vw, 3.9rem); font-weight: 820; }
.lede { font-size: clamp(1.05rem, 2.2vw, 1.28rem); color: var(--ink-soft); margin: 1.3rem auto 0; max-width: 620px; }
.lede strong { color: var(--ink); }
.cta-row { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; margin: 2rem 0 0; }
.cta-row.center { margin-top: 1.7rem; }
.btn {
  display: inline-block; font-weight: 700; font-size: 1rem; padding: .8rem 1.5rem;
  border-radius: 11px; transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #042b20; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--accent-deep); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-deep); }
.fineprint { color: var(--ink-faint); font-size: .85rem; margin: 1.4rem auto 0; max-width: 540px; }

.hero-shot {
  margin: clamp(2.4rem, 5vw, 3.6rem) auto 0; max-width: var(--maxw); padding: 0 1rem;
}
.hero-shot img {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

/* ---------- generic layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: clamp(3.5rem, 8vw, 6rem) clamp(1rem, 4vw, 2rem); }
.band { background: var(--bg-band); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.band-inner { max-width: var(--maxw); margin: 0 auto; padding: clamp(3.5rem, 8vw, 6rem) clamp(1rem, 4vw, 2rem); }
.section-lede { font-size: 1.1rem; color: var(--ink-soft); max-width: 680px; margin: 1.1rem 0 0; }
.section-lede.center { margin-left: auto; margin-right: auto; text-align: center; }
h2 + .section-lede { margin-top: 1.1rem; }

/* ---------- same-graph swap diagram ---------- */
.swap {
  display: flex; align-items: stretch; gap: 0; margin: 2.4rem 0 2rem;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: var(--card); box-shadow: var(--shadow);
}
.swap-app {
  flex: 0 0 auto; display: flex; align-items: center; padding: 1.2rem clamp(1rem,3vw,2rem);
  font-weight: 800; font-size: 1.15rem; color: var(--ink);
}
.swap-pipe {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .35rem; padding: 1rem; text-align: center;
  background:
    linear-gradient(var(--bg-tint), var(--bg-tint)) padding-box,
    repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px);
  border-left: 1px solid var(--line); border-right: 1px solid var(--line);
}
.swap-arrows { font-size: 1.5rem; color: var(--accent); line-height: 1; }
.swap-pipe code {
  background: transparent; color: var(--ink-soft); display: flex; flex-direction: column; gap: .1rem;
  font-weight: 600; font-size: .95rem; padding: 0;
}
.swap-pipe code small { color: var(--ink-faint); font-weight: 500; font-size: .78rem; }
@media (max-width: 560px) {
  .swap { flex-direction: column; }
  .swap-pipe { border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .swap-app { justify-content: center; }
}

.checks, .config-list { list-style: none; padding: 0; margin: 1.6rem 0 0; display: grid; gap: .7rem; }
.checks li, .config-list li { position: relative; padding-left: 1.9rem; color: var(--ink-soft); }
.checks li::before, .config-list li::before {
  content: ""; position: absolute; left: 0; top: .5em; width: 11px; height: 6px;
  border-left: 2.5px solid var(--accent); border-bottom: 2.5px solid var(--accent);
  transform: rotate(-45deg);
}
.config-list li strong, .checks li strong { color: var(--ink); }
.config-list { margin-top: 2rem; max-width: 760px; }
.muted { color: var(--ink-faint); }

.og-chip {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .01em;
  color: #9a6a00; background: #fff3d6; border: 1px solid #f0d79a;
  padding: .08em .5em; border-radius: 999px; vertical-align: middle; white-space: nowrap;
}
@media (prefers-color-scheme: dark) {
  .og-chip { color: #ffd271; background: #3a2c08; border-color: #5a440f; }
}

/* ---------- feature grid ---------- */
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 1.1rem; margin: 2.6rem 0 0;
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem 1.4rem; box-shadow: var(--shadow);
  transition: transform .12s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.card-ic {
  width: 44px; height: 44px; display: grid; place-items: center; font-size: 1.4rem;
  background: var(--accent-soft); border-radius: 11px; margin-bottom: .9rem;
}
.card h3 { margin-bottom: .4rem; }
.card p { margin: 0; color: var(--ink-soft); font-size: .96rem; }

/* ---------- screenshot strips ---------- */
.shots {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem; margin: 3rem 0 0;
}
.shots figure { margin: 0; }
.shots img {
  width: 100%; border-radius: 11px; border: 1px solid var(--line); box-shadow: var(--shadow);
}
.shots figcaption { text-align: center; color: var(--ink-faint); font-size: .85rem; margin-top: .6rem; }
/* Stacked tile: two short shots (e.g. quick-capture empty → filled) read as one
   feature. The two images share the grid cell, separated by a small gap. */
.shots figure.stack img + img { margin-top: .6rem; }

.band-shot { margin: 2.6rem 0 0; }
.band-shot img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow-lg); }

/* ---------- out of scope ---------- */
.scope-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem; margin: 2.6rem 0 0;
}
.scope-item {
  background: var(--card); border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.3rem;
}
.scope-item h3 { font-size: 1rem; margin-bottom: .3rem; color: var(--ink); }
.scope-item p { margin: 0; color: var(--ink-faint); font-size: .92rem; }
.scope-item code { color: var(--ink-soft); background: var(--bg-tint); }
.scope-note {
  text-align: center; color: var(--ink-faint); font-size: .9rem;
  margin: 2.2rem auto 0; max-width: 660px;
}

/* ---------- closer ---------- */
.closer { text-align: center; }
.closer .section-lede { margin-left: auto; margin-right: auto; }

/* ---------- footer ---------- */
.foot { background: var(--bg-tint); border-top: 1px solid var(--line); }
.foot-inner { max-width: var(--maxw); margin: 0 auto; padding: 3rem clamp(1rem, 4vw, 2rem); }
.foot-brand { display: flex; align-items: center; gap: .5rem; font-weight: 800; color: var(--ink); }
.foot-links { display: flex; flex-wrap: wrap; gap: 1.3rem; margin: 1.1rem 0; font-size: .92rem; }
.foot-links a { color: var(--ink-soft); }
.foot-note { color: var(--ink-faint); font-size: .82rem; max-width: 760px; margin: 1rem 0 0; }
.foot-note a { color: var(--ink-soft); }
.foot-copy { color: var(--ink-faint); font-size: .82rem; margin: 1.1rem 0 0; }

/* ---------- dark-mode showcase ---------- */
.center-h { text-align: center; }
.solo-shot { margin: 2.6rem auto 0; max-width: 920px; }
.solo-shot img {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

/* ---------- lightbox (click any screenshot to expand) ---------- */
.zoomable { cursor: zoom-in; }
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(6, 18, 14, .82); cursor: zoom-out;
}
.lightbox[hidden] { display: none; }
.lightbox img {
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  border-radius: 10px; box-shadow: var(--shadow-lg); cursor: zoom-out;
}