/* ==========================================================================
   SolveZen Technologies — Shared site stylesheet
   Brand: Deep Teal · Minimal Zen · derived from solvezen-brand-kit-v3.html
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,300&family=DM+Mono:wght@400;500&display=swap');

:root {
  --teal:        #0D7C7C;
  --teal-deep:   #095858;
  --teal-mid:    #0FA5A5;
  --mint:        #00C4B4;
  --mint-light:  #B2F0EC;
  --ink:         #0D1F1F;
  --slate:       #4A6C6C;
  --mist:        #F4FAFA;
  --line:        #D9EEEE;
  --white:       #FFFFFF;
  --muted:       #8AABAB;

  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;

  --container: 1120px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 4px 20px rgba(13,124,124,0.08);
  --shadow-lift: 0 12px 36px rgba(13,124,124,0.16);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; min-width: 0; }

html { scroll-behavior: smooth; }

html, body { max-width: 100%; overflow-x: hidden; }

body {
  font-family: var(--font-sans);
  background: var(--mist);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 88px 0; }

@media (max-width: 720px) {
  section { padding: 56px 0; }
}

/* ── EYEBROW / LABEL ── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
  font-family: var(--font-mono);
}

.eyebrow.on-dark { color: var(--mint); }

/* ── HEADINGS ── */
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.01em; color: var(--ink); }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head.center { align-items: center; text-align: center; margin-left: auto; margin-right: auto; }

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-title b { font-weight: 700; color: var(--teal); }

.section-sub {
  font-size: 16px;
  color: var(--slate);
  line-height: 1.65;
}

/* ── NAV ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244,250,250,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header.on-dark {
  background: rgba(13,31,31,0.85);
  border-bottom: 1px solid rgba(13,124,124,0.25);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark { flex-shrink: 0; }

.brand-word {
  font-size: 19px;
  font-weight: 300;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.brand-word b { font-weight: 700; color: var(--teal); }

.site-header.on-dark .brand-word { color: var(--white); }
.site-header.on-dark .brand-word b { color: var(--mint); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--slate);
  transition: color 0.2s;
}

.nav-link:hover { color: var(--teal); }

.site-header.on-dark .nav-link { color: rgba(255,255,255,0.55); }
.site-header.on-dark .nav-link:hover { color: var(--mint); }

.nav-cta {
  padding: 10px 20px;
  background: var(--teal);
  color: var(--white) !important;
  border-radius: 100px;
  font-size: 13.5px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover { background: var(--teal-mid); transform: translateY(-1px); }

.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--slate);
}

@media (max-width: 640px) {
  .nav-inner { padding: 14px 20px; }
  .brand-word { font-size: 17px; }
  .nav-links { gap: 14px; }
  .nav-link { display: none; }
  .nav-cta { padding: 9px 16px; font-size: 12.5px; }
}

.nav-back:hover { color: var(--teal); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: none;
  transition: background 0.2s, transform 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}

.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover { background: var(--teal-mid); transform: translateY(-1px); }

.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

.btn-on-dark.btn-ghost { color: var(--white); border-color: rgba(255,255,255,0.25); }
.btn-on-dark.btn-ghost:hover { border-color: var(--mint); color: var(--mint); }

.btn[disabled], .btn.is-soon {
  background: rgba(13,124,124,0.10);
  color: var(--slate);
  cursor: default;
}
.btn.is-soon:hover { background: rgba(13,124,124,0.10); transform: none; }

/* ── PLAY STORE BADGE (soon state) ── */
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--white);
}

.store-badge.on-light {
  background: rgba(13,124,124,0.06);
  border: 1px solid var(--line);
  color: var(--ink);
}

.store-badge-text .l1 { font-size: 10px; letter-spacing: 0.08em; opacity: 0.65; }
.store-badge-text .l2 { font-size: 15px; font-weight: 600; }

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

/* ── FOOTER ── */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.55);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}

.footer-brand .brand-word { color: var(--white); }
.footer-brand .brand-word b { color: var(--mint); }

.footer-tagline {
  margin-top: 14px;
  font-size: 13.5px;
  color: rgba(255,255,255,0.4);
  max-width: 260px;
  line-height: 1.6;
}

.footer-col-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  padding: 6px 0;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--mint); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 28px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.02em;
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ── UTILITIES ── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 12.5px;
  font-weight: 500;
  background: rgba(13,124,124,0.08);
  border: 1px solid rgba(13,124,124,0.18);
  color: var(--teal-deep);
}

.pill-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--mint); flex-shrink: 0;
}