/* ===========================================================
   SogoApp — landing + legal site
   Brand: SogoApp blue #3E72FE · green #128C4A · Spectrum accents
   =========================================================== */

:root {
  --blue: #3E72FE;
  --blue-dark: #2A56D6;
  --green: #128C4A;
  --green-bright: #1AFE93;
  --yellow: #FECB29;
  --red: #FC2424;

  --ink: #0C1220;
  --body: #3a4356;
  --muted: #6b7488;
  --line: #e7eaf1;
  --surface: #ffffff;
  --surface-2: #f5f7fb;
  --bg: #ffffff;

  --grad: linear-gradient(120deg, #3E72FE 0%, #5E8BFF 45%, #12B67A 100%);
  --grad-soft: linear-gradient(120deg, rgba(62,114,254,.10), rgba(18,140,74,.10));

  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px -20px rgba(20, 40, 90, .28);
  --shadow-sm: 0 8px 24px -12px rgba(20, 40, 90, .22);
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f3f6fd;
    --body: #c2c9d8;
    --muted: #8b93a7;
    --line: #232838;
    --surface: #12151d;
    --surface-2: #171b26;
    --bg: #0a0c11;
    --grad-soft: linear-gradient(120deg, rgba(62,114,254,.16), rgba(26,254,147,.12));
    --shadow: 0 24px 60px -22px rgba(0,0,0,.6);
    --shadow-sm: 0 10px 28px -14px rgba(0,0,0,.55);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--body);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5.4vw, 3.9rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1rem; }
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }
.center { text-align: center; }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: .98rem;
  padding: .82rem 1.5rem; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 12px 26px -12px rgba(62,114,254,.75); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-lg { padding: 1rem 1.8rem; font-size: 1.05rem; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(14px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a { color: var(--body); font-weight: 600; font-size: .95rem; }
.nav-links a:hover { color: var(--blue); text-decoration: none; }
@media (max-width: 760px) { .nav-links .hide-sm { display: none; } }

/* ---------- brand wordmark ---------- */
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; color: var(--ink); font-size: 1.28rem; letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--grad);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 1.05rem;
  box-shadow: 0 8px 18px -8px rgba(62,114,254,.7);
}

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 68px 0 40px; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto -10%; height: 620px; z-index: 0;
  background:
    radial-gradient(60% 60% at 20% 10%, rgba(62,114,254,.22), transparent 60%),
    radial-gradient(50% 50% at 85% 0%, rgba(26,254,147,.20), transparent 60%);
  filter: blur(10px);
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: .82rem; letter-spacing: .02em;
  color: var(--blue); background: var(--grad-soft);
  padding: .4rem .8rem; border-radius: 999px; margin-bottom: 1.1rem;
}
.hero p.lead { font-size: 1.18rem; color: var(--body); max-width: 34ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.hero-note { margin-top: 1rem; font-size: .86rem; color: var(--muted); }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero p.lead { margin-inline: auto; }
  .hero-cta { justify-content: center; }
  .phone { margin-inline: auto; }
}

/* ---------- phone mockup ---------- */
.phone {
  width: 288px; aspect-ratio: 9 / 19; position: relative;
  background: #0b0e14; border-radius: 40px; padding: 12px;
  box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.06);
}
.phone .screen {
  width: 100%; height: 100%; border-radius: 30px; overflow: hidden;
  background: linear-gradient(180deg, #0f5529, #147237 40%, #0e1116 40%);
  display: flex; flex-direction: column;
}
.phone .topbar { padding: 34px 16px 12px; color: #fff; display: flex; align-items: center; gap: 10px; }
.phone .topbar .av { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,.25); }
.phone .topbar b { font-size: .95rem; }
.phone .topbar small { display: block; opacity: .8; font-size: .72rem; font-weight: 500; }
.phone .chat { flex: 1; background: var(--surface-2); padding: 16px 12px; display: flex; flex-direction: column; gap: 10px; }
.bubble { max-width: 78%; padding: 9px 12px; border-radius: 14px; font-size: .82rem; color: var(--ink); box-shadow: var(--shadow-sm); }
.bubble.in { background: var(--surface); border-top-left-radius: 4px; align-self: flex-start; }
.bubble.out { background: #128C4A; color: #fff; border-top-right-radius: 4px; align-self: flex-end; }
.bubble .tick { color: #8FB4FF; font-size: .72rem; }

/* ---------- sections ---------- */
section { padding: 66px 0; }
.section-head { max-width: 40ch; margin: 0 auto 44px; text-align: center; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* ---------- feature grid ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .features { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.card .ic {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: var(--grad-soft); color: var(--blue); margin-bottom: 16px;
}
.card .ic svg { width: 24px; height: 24px; }
.card p { font-size: .96rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; border-radius: 26px; background: var(--grad); color: #fff; padding: 54px 30px; text-align: center; box-shadow: var(--shadow); }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.92); max-width: 46ch; margin: 0 auto 1.6rem; }
.cta-band .btn-primary { background: #fff; color: var(--blue-dark); }
.cta-band .btn-primary:hover { background: #eef2ff; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); background: var(--surface-2); padding: 52px 0 30px; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px; }
.footer .col h4 { color: var(--ink); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 14px; }
.footer .col a { display: block; color: var(--body); font-size: .95rem; margin-bottom: 9px; }
.footer .col a:hover { color: var(--blue); text-decoration: none; }
.footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; color: var(--muted); font-size: .86rem; }

/* ---------- legal / content page ---------- */
.legal { padding: 54px 0 40px; }
.legal .wrap { max-width: 780px; margin-inline: auto; }
.legal h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin-bottom: .3rem; }
.legal .updated { color: var(--muted); font-size: .9rem; margin-bottom: 2rem; }
.legal h2 { font-size: 1.3rem; margin-top: 2.2rem; }
.legal h3 { font-size: 1.05rem; margin-top: 1.4rem; }
.legal ul, .legal ol { padding-left: 22px; }
.legal li { margin-bottom: .4rem; }
.callout {
  background: var(--grad-soft); border: 1px solid var(--line);
  border-left: 4px solid var(--blue); border-radius: var(--radius-sm);
  padding: 16px 20px; margin: 1.4rem 0;
}
.callout.green { border-left-color: var(--green); }
.step {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 16px 18px; margin-bottom: 12px;
}
.step .n { flex: 0 0 30px; width: 30px; height: 30px; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: .9rem; }
.step .n.plain { background: var(--surface-2); color: var(--blue); border: 1px solid var(--line); }