/* ═══════════════════════════════════════════════════════════
   SKURAI — shared stylesheet
   Light theme · Cormorant Garamond / IBM Plex Mono / DM Sans
═══════════════════════════════════════════════════════════ */

/* ── TOKENS ────────────────────────────────────────────── */
:root {
  --bg:           #F8FAFC;
  --surface:      #FFFFFF;
  --surface-2:    #F1F5F9;
  --text:         #0F172A;
  --text-muted:   #64748B;
  --border:       rgba(15, 23, 42, 0.08);
  --border-em:    rgba(5, 150, 105, 0.22);
  --emerald:      #059669;
  --emerald-lt:   #34D399;

  --push-text:    #065F46;
  --push-border:  rgba(5, 150, 105, 0.30);
  --push-bg:      rgba(5, 150, 105, 0.07);
  --hold-text:    #92400E;
  --hold-border:  rgba(180, 83, 9, 0.28);
  --hold-bg:      rgba(180, 83, 9, 0.06);
  --pull-text:    #991B1B;
  --pull-border:  rgba(220, 38, 38, 0.25);
  --pull-bg:      rgba(220, 38, 38, 0.05);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --r:    10px;
}

/* ── RESET ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100dvh;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; }

/* ── LAYOUT ────────────────────────────────────────────── */
.wrap {
  width: min(100% - 2.5rem, 760px);
  margin-inline: auto;
}
.page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}
main { flex: 1; }

/* ── AMBIENT BACKGROUND ────────────────────────────────── */
.bg-canvas {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.bg-canvas::before {
  content: '';
  position: absolute; top: -20%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse at center, rgba(5,150,105,0.07) 0%, transparent 65%);
}
.bg-grid {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(15,23,42,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ── NAV ───────────────────────────────────────────────── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(248, 250, 252, 0.90);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: 61px;
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.6rem;
}
.nav-wordmark {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1rem; font-weight: 500;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--text);
}
.nav-links {
  display: flex; align-items: center; gap: 0.125rem;
}
.nav-link {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem; font-weight: 400;
  color: var(--text-muted);
  padding: 0.45rem 0.8rem; border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--surface-2); }
.nav-cta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--emerald); border: 1px solid var(--border-em);
  border-radius: 5px; padding: 0.45rem 0.9rem; margin-left: 0.5rem;
  transition: background 0.2s;
}
.nav-cta:hover { background: rgba(5,150,105,0.07); }
.nav-burger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 0.4rem; color: var(--text-muted);
}

/* ── RULE ──────────────────────────────────────────────── */
.rule {
  width: 100%; height: 1px;
  background: var(--border);
}

/* ── SECTION EYEBROW ───────────────────────────────────── */
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.58rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--emerald); margin-bottom: 2rem;
}

/* ── SIGNAL CHIPS ──────────────────────────────────────── */
.sig-chip {
  display: inline-flex; align-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.63rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.22em 0.65em; border-radius: 4px; border: 1px solid;
  font-weight: 500; white-space: nowrap;
}
.sig-chip.push { color: var(--push-text); background: var(--push-bg); border-color: var(--push-border); }
.sig-chip.hold { color: var(--hold-text); background: var(--hold-bg); border-color: var(--hold-border); }
.sig-chip.pull { color: var(--pull-text); background: var(--pull-bg); border-color: var(--pull-border); }

/* Feature check / cross */
.feat-yes { color: #059669; font-weight: 600; }
.feat-no  { color: var(--text-muted); opacity: 0.4; }

/* ── DARK CTA BAND ─────────────────────────────────────── */
.cta-band {
  background: linear-gradient(180deg, #F8FAFC 0px, #0F172A 64px);
  color: #F1F5F9;
  padding: 5rem 0 5rem;
}
.cta-band .eyebrow { color: #34D399; }
.cta-band .cta-heading {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(1.8rem, 5vw, 2.8rem); font-weight: 500;
  line-height: 1.2; margin-bottom: 0.75rem; color: #F1F5F9;
}
.cta-band .cta-heading em { font-style: italic; color: #34D399; }
.cta-band .cta-sub {
  font-size: 0.9rem; color: #94A3B8;
  margin-bottom: 2rem; max-width: 440px; line-height: 1.7;
}

/* Form */
.form-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.form-input {
  flex: 1 1 220px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px; padding: 0.8rem 1rem;
  font-family: 'DM Sans', sans-serif; font-size: 0.875rem;
  color: #F1F5F9; outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input::placeholder { color: #475569; }
.form-input:focus {
  border-color: #059669;
  box-shadow: 0 0 0 3px rgba(5,150,105,0.15);
}
.form-btn {
  background: #059669; color: #fff; border: none; border-radius: 6px;
  padding: 0.8rem 1.6rem;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.67rem;
  letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500;
  cursor: pointer; flex-shrink: 0; white-space: nowrap;
  transition: background 0.2s, transform 0.1s;
}
.form-btn:hover { background: #047857; transform: translateY(-1px); }
.form-btn:active { transform: none; }
.form-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.form-micro {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.57rem; letter-spacing: 0.1em; color: #334155; margin-top: 0.9rem;
}
.form-success {
  display: none; align-items: center; gap: 0.75rem;
  background: rgba(52,211,153,0.08); border: 1px solid rgba(52,211,153,0.2);
  border-radius: 6px; padding: 0.9rem 1.25rem;
  font-size: 0.875rem; color: #34D399;
}
.form-success.show { display: flex; }

/* ── FOOTER ────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0 2rem;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
}
.footer-copy {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.57rem; letter-spacing: 0.1em; color: var(--text-muted);
}
.footer-links { display: flex; gap: 2rem; }
.footer-link {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.57rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); transition: color 0.2s;
}
.footer-link:hover { color: var(--text); }

/* ── KEYFRAMES ─────────────────────────────────────────── */
@keyframes rise {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes logo-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.1); }
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1;   box-shadow: 0 0 0 0   rgba(5,150,105,0.4); }
  50%       { opacity: 0.7; box-shadow: 0 0 0 5px rgba(5,150,105,0); }
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ── SCROLLBAR ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ── HAMBURGER ICON TOGGLE ─────────────────────────────── */
.nav-burger .icon-close { display: none; }
.site-nav.is-open .nav-burger .icon-menu  { display: none; }
.site-nav.is-open .nav-burger .icon-close { display: block; }

/* ── RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 600px) {
  .nav-burger { display: flex; align-items: center; justify-content: center; }
  .nav-links {
    position: absolute; top: 61px; left: 0; right: 0;
    background: rgba(248,250,252,0.98);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column; padding: 0.5rem 1.25rem 1.25rem;
    gap: 0.1rem; display: none;
  }
  .site-nav.is-open .nav-links { display: flex; }
  .nav-link { font-size: 1rem; padding: 0.75rem 0.8rem; }
  .nav-cta { display: none; }
  .site-nav.is-open .nav-cta { display: inline-flex; margin-left: 0; margin-top: 0.25rem; align-self: flex-start; }
  .form-row { flex-direction: column; }
  .form-btn { width: 100%; }
}
@media (max-width: 560px) {
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-wrap: wrap; gap: 0.75rem 1.5rem; }
}