/* ============================================================
   OpnIMG public site — Signal Field stylesheet
   Matches the design tokens used in the web app and iOS app build
   (see ~/OpnIMG Build/OpnIMG BUild/brand/README.md and
        ~/OpnIMG Build/OpnIMG BUild/opnimg-marketing-mockup.html)

   Light is the default ("upbeat paper").
   Dark mode follows OS preference, or [data-theme="dark"] override.
   ============================================================ */

:root,
[data-theme="light"] {
  --bg-0:        #FBF7EE;
  --bg-1:        #FFFFFF;
  --bg-2:        #F4EFE3;
  --bg-3:        #EBE4D2;
  --line:        #E2DAC9;
  --line-strong: #C9BFA8;

  --text-1:    #0F1525;
  --text-2:    #475569;
  --text-3:    #6B7280;
  --on-signal: #1A1300;

  --signal:      #F59E0B;
  --signal-2:    #92400E;
  --signal-soft: #FFF3D1;
  --beacon:      #155E75;
  --beacon-soft: #E0F2FE;
  --safe:        #047857;
  --safe-soft:   #D1FAE5;
  --alert:       #B91C1C;
  --alert-soft:  #FEE2E2;
  --warn:        #92400E;

  --shadow-1:      0 1px 2px rgba(15,21,37,0.05), 0 1px 3px rgba(15,21,37,0.06);
  --shadow-2:      0 8px 24px rgba(15,21,37,0.08), 0 2px 6px rgba(15,21,37,0.05);
  --shadow-signal: 0 8px 24px rgba(245,158,11,0.18);
}

[data-theme="dark"] {
  --bg-0:        #070B14;
  --bg-1:        #0F1525;
  --bg-2:        #172033;
  --bg-3:        #26314A;
  --line:        #2A3856;
  --line-strong: #3A4A6E;

  --text-1: #F8FAFC;
  --text-2: #CBD5E1;
  --text-3: #94A3B8;

  --signal:      #FBBF24;
  --signal-2:    #F59E0B;
  --signal-soft: rgba(251,191,36,0.14);
  --beacon:      #22D3EE;
  --beacon-soft: rgba(34,211,238,0.12);
  --safe:        #10B981;
  --safe-soft:   rgba(16,185,129,0.14);
  --alert:       #EF4444;
  --alert-soft:  rgba(239,68,68,0.14);
  --warn:        #F59E0B;

  --shadow-1:      0 2px 6px rgba(0,0,0,.25);
  --shadow-2:      0 8px 24px rgba(0,0,0,.4);
  --shadow-signal: 0 6px 18px rgba(251,191,36,0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-0:        #070B14;
    --bg-1:        #0F1525;
    --bg-2:        #172033;
    --bg-3:        #26314A;
    --line:        #2A3856;
    --line-strong: #3A4A6E;
    --text-1: #F8FAFC;
    --text-2: #CBD5E1;
    --text-3: #94A3B8;
    --signal:      #FBBF24;
    --signal-2:    #F59E0B;
    --signal-soft: rgba(251,191,36,0.14);
    --beacon:      #22D3EE;
    --beacon-soft: rgba(34,211,238,0.12);
    --safe:        #10B981;
    --safe-soft:   rgba(16,185,129,0.14);
    --alert:       #EF4444;
    --alert-soft:  rgba(239,68,68,0.14);
    --shadow-signal: 0 6px 18px rgba(251,191,36,0.3);
  }
}

/* ============================================================
   BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg-0); color: var(--text-1);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
               Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased; line-height: 1.55;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--signal-2); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; border-radius: 6px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   LAYOUT
   ============================================================ */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--signal-soft); color: var(--signal-2);
  border: 1px solid rgba(245,158,11,0.25);
  font-size: 12px; font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase; margin-bottom: 18px;
}
.section-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }
.section-title {
  font-size: clamp(28px, 3.6vw, 40px); line-height: 1.15;
  letter-spacing: -0.02em; font-weight: 800;
  margin: 0 0 16px; color: var(--text-1);
}
.section-lead {
  color: var(--text-2); font-size: 17px; line-height: 1.55;
  max-width: 740px; margin: 0 0 40px;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251,247,238,0.85);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
[data-theme="dark"] .nav { background: rgba(7,11,20,0.78); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .nav { background: rgba(7,11,20,0.78); }
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  font-weight: 700; letter-spacing: -0.01em;
  font-size: 18px; color: var(--text-1);
}
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, #FBBF24, #B45309);
  display: grid; place-items: center;
  box-shadow: var(--shadow-signal); flex-shrink: 0;
}
.brand-mark svg { width: 22px; height: 22px; }
.nav-links {
  margin-left: auto; display: flex; gap: 4px; align-items: center;
}
.nav-links a {
  padding: 8px 12px; color: var(--text-2);
  font-weight: 500; font-size: 14px; border-radius: 8px;
  text-decoration: none;
}
.nav-links a:hover { background: var(--bg-2); color: var(--text-1); }
.nav-links a.active { color: var(--text-1); background: var(--bg-2); }
.nav-cta {
  background: var(--signal); color: var(--on-signal);
  font-weight: 700; padding: 10px 16px; border-radius: 10px;
  font-size: 14px; border: 0; box-shadow: var(--shadow-signal);
  text-decoration: none;
}
.nav-cta:hover { filter: brightness(1.05); text-decoration: none; }
.theme-toggle {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 999px; padding: 4px;
  display: inline-flex; gap: 2px;
}
.theme-toggle button {
  background: transparent; border: 0; padding: 6px 10px;
  border-radius: 999px; color: var(--text-2);
  font-size: 12px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
}
.theme-toggle button[aria-pressed="true"] {
  background: var(--bg-1); color: var(--text-1); box-shadow: var(--shadow-1);
}
.theme-toggle svg { width: 14px; height: 14px; }

@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  max-width: 1200px; margin: 0 auto; padding: 56px 24px 32px;
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px;
}
@media (min-width: 980px) {
  .hero {
    grid-template-columns: minmax(380px, 0.95fr) 1.05fr;
    align-items: center; padding: 88px 24px 64px;
  }
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--signal-soft); color: var(--signal-2);
  border: 1px solid rgba(245,158,11,0.25);
  font-size: 12px; font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase; margin-bottom: 20px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
  animation: pulse 1.6s ease-in-out infinite;
}
.h-title {
  font-size: clamp(34px, 4.8vw, 58px); line-height: 1.05;
  letter-spacing: -0.02em; font-weight: 800; margin: 0 0 18px;
  color: var(--text-1);
}
.h-title .accent {
  color: var(--signal-2);
  background: linear-gradient(180deg, transparent 60%, rgba(245,158,11,0.20) 60%);
}
.h-sub {
  color: var(--text-2); font-size: 18px; line-height: 1.55;
  max-width: 560px; margin: 0 0 28px;
}
.h-cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-primary {
  background: var(--signal); color: var(--on-signal); font-weight: 700;
  padding: 14px 22px; border-radius: 12px; font-size: 15px; border: 0;
  box-shadow: var(--shadow-signal); text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { filter: brightness(1.05); text-decoration: none; }
.btn-secondary {
  background: transparent; color: var(--text-1); font-weight: 600;
  padding: 14px 22px; border-radius: 12px; font-size: 15px;
  border: 1.5px solid var(--line-strong);
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover { background: var(--bg-2); text-decoration: none; }
.h-meta {
  display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px;
  color: var(--text-3); font-size: 13px;
}
.h-meta strong { color: var(--text-1); font-weight: 600; }

/* Hero proof card */
.hero-proof {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 24px; padding: 28px; box-shadow: var(--shadow-2);
  position: relative; overflow: hidden;
}
.hero-proof::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(800px 280px at 80% -10%, var(--signal-soft) 0%, transparent 60%),
              radial-gradient(560px 220px at 0% 110%, var(--beacon-soft) 0%, transparent 60%);
  pointer-events: none;
}
.hero-proof > * { position: relative; }
.hero-proof-caption {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-3); text-transform: uppercase;
  letter-spacing: 0.06em; margin-bottom: 16px; font-weight: 600;
}
.hero-proof-caption .pre {
  color: var(--signal-2); display: inline-flex; align-items: center; gap: 6px;
}
.hero-proof-caption .pre::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--signal);
  animation: pulse 1.6s ease-in-out infinite;
}
.proof-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
  margin-top: 8px;
}
.proof-stat {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px;
}
.proof-num {
  display: block; font-size: 26px; font-weight: 800; letter-spacing: -0.02em;
  color: var(--text-1); line-height: 1.1;
}
.proof-num.signal { color: var(--signal-2); }
.proof-num.beacon { color: var(--beacon); }
.proof-label {
  display: block; font-size: 12px; color: var(--text-3);
  margin-top: 6px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.proof-desc { font-size: 13px; color: var(--text-2); margin-top: 8px; line-height: 1.45; }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.45; transform: scale(0.85); }
}

/* ============================================================
   PROBLEM / NARRATIVE BLOCKS
   ============================================================ */
.section.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.problem-quote {
  border-left: 3px solid var(--signal); padding: 16px 20px;
  background: var(--signal-soft); color: var(--signal-2);
  border-radius: 0 12px 12px 0; font-size: 16px;
  font-weight: 500; margin: 28px 0;
}

/* ============================================================
   GRID + CARDS
   ============================================================ */
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 760px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.grid-4 { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 760px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 16px; padding: 24px;
  box-shadow: var(--shadow-1);
}
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 700; color: var(--text-1); }
.card p { margin: 0; color: var(--text-2); font-size: 15px; line-height: 1.55; }
.card .icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--signal-soft); color: var(--signal-2);
  display: grid; place-items: center; margin-bottom: 14px;
}
.card .icon svg { width: 20px; height: 20px; }

.card.beacon .icon { background: var(--beacon-soft); color: var(--beacon); }
.card.safe   .icon { background: var(--safe-soft);   color: var(--safe);   }

.step-card { position: relative; }
.step-num {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--signal); color: var(--on-signal);
  font-weight: 800; font-size: 16px;
  display: grid; place-items: center; margin-bottom: 14px;
}
.step-meta {
  display: inline-block; margin-top: 14px;
  font-size: 12px; font-weight: 700; color: var(--signal-2);
  background: var(--signal-soft); padding: 4px 10px; border-radius: 999px;
  text-transform: uppercase; letter-spacing: 0.04em;
}

/* Market card */
.market-card {
  display: flex; flex-direction: column;
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow-1);
}
.market-card .head { padding: 22px 22px 14px; }
.market-card .glyph {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--signal-soft); color: var(--signal-2);
  display: grid; place-items: center; margin-bottom: 12px;
}
.market-card .glyph svg { width: 20px; height: 20px; }
.market-card h3 { margin: 0 0 4px; font-size: 18px; color: var(--text-1); font-weight: 700; }
.market-card .tagline { color: var(--text-2); font-size: 14px; line-height: 1.5; margin: 0; }
.market-card .body {
  padding: 14px 22px 18px; flex-grow: 1;
}
.market-card .body ul {
  list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px;
}
.market-card .body li {
  font-size: 13px; color: var(--text-2);
  display: flex; align-items: center; gap: 8px;
}
.market-card .body li::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--signal); flex-shrink: 0;
}
.market-card .foot {
  padding: 12px 22px; background: var(--bg-2);
  border-top: 1px solid var(--line);
  font-size: 11px; font-weight: 700; color: var(--signal-2);
  text-transform: uppercase; letter-spacing: 0.06em;
}

/* Audience routing cards */
.audience-card {
  display: block; padding: 22px;
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow-1);
  color: var(--text-1); text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.audience-card:hover {
  text-decoration: none; transform: translateY(-2px);
  box-shadow: var(--shadow-2); border-color: var(--line-strong);
}
.audience-card .glyph {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--signal-soft); color: var(--signal-2);
  display: grid; place-items: center; margin-bottom: 14px;
  font-weight: 800; font-size: 18px;
}
.audience-card.beacon .glyph { background: var(--beacon-soft); color: var(--beacon); }
.audience-card.safe   .glyph { background: var(--safe-soft);   color: var(--safe);   }
.audience-card h3 { margin: 0 0 6px; font-size: 17px; font-weight: 700; }
.audience-card p { margin: 0; color: var(--text-2); font-size: 14px; line-height: 1.5; }
.audience-card .arrow {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 14px; font-size: 13px; font-weight: 700;
  color: var(--signal-2);
}

/* Tag / pill */
.tag {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: var(--bg-2); border: 1px solid var(--line);
  font-size: 11px; font-weight: 700; color: var(--text-2);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.tag.signal { background: var(--signal-soft); color: var(--signal-2); border-color: rgba(245,158,11,0.3); }
.tag.beacon { background: var(--beacon-soft); color: var(--beacon); border-color: rgba(21,94,117,0.3); }
.tag.safe   { background: var(--safe-soft);   color: var(--safe);   border-color: rgba(4,120,87,0.3); }

/* ============================================================
   PROOF STRIP
   ============================================================ */
.proof-strip {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  margin-top: 32px;
}
@media (min-width: 760px) { .proof-strip { grid-template-columns: repeat(4, 1fr); } }
.proof-pill {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px;
  box-shadow: var(--shadow-1);
}
.proof-pill .num {
  display: block; font-size: 28px; font-weight: 800; letter-spacing: -0.02em;
  color: var(--signal-2); line-height: 1.1;
}
.proof-pill .lbl {
  display: block; font-size: 12px; color: var(--text-3);
  margin-top: 6px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.proof-pill p { font-size: 13px; color: var(--text-2); margin-top: 10px; line-height: 1.5; }

/* ============================================================
   FOOTNOTE / METHODOLOGY
   ============================================================ */
.method-note {
  margin-top: 18px; padding: 14px 18px;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 10px; font-size: 12px; color: var(--text-3);
  line-height: 1.55;
}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 22px; padding: 48px;
  text-align: center; box-shadow: var(--shadow-2);
  background:
    radial-gradient(800px 280px at 80% -10%, var(--signal-soft) 0%, transparent 60%),
    radial-gradient(560px 220px at 0% 110%, var(--beacon-soft) 0%, transparent 60%),
    var(--bg-1);
}
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); margin: 0 0 12px; }
.cta-band p { color: var(--text-2); max-width: 620px; margin: 0 auto 24px; }
.cta-band .row { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ============================================================
   FORM
   ============================================================ */
.contact-form {
  max-width: 560px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 14px;
  text-align: left;
}
.contact-form .row-2 { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 600px) { .contact-form .row-2 { grid-template-columns: 1fr 1fr; } }
.contact-form label {
  font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 4px; display: block;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%; padding: 12px 14px;
  border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg-1); color: var(--text-1);
  font-family: inherit; font-size: 15px;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--signal); outline: none;
  box-shadow: 0 0 0 3px var(--signal-soft);
}
.cf-success, .cf-error {
  display: none; padding: 12px 16px; border-radius: 10px;
  font-size: 14px; font-weight: 600;
}
.cf-success { background: var(--safe-soft); color: var(--safe); border: 1px solid rgba(4,120,87,0.25); }
.cf-error   { background: var(--alert-soft); color: var(--alert); border: 1px solid rgba(185,28,28,0.25); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-2); border-top: 1px solid var(--line);
  padding: 44px 0 28px; margin-top: 48px;
}
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 32px;
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
@media (min-width: 760px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.footer-grid h4 {
  font-size: 13px; font-weight: 700; color: var(--text-1);
  margin: 0 0 12px; text-transform: uppercase; letter-spacing: 0.06em;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.footer-grid a { color: var(--text-2); font-size: 14px; }
.footer-grid a:hover { color: var(--text-1); }
.footer-grid p { color: var(--text-2); font-size: 14px; line-height: 1.55; margin: 8px 0 0; }
.footer-bottom {
  max-width: 1200px; margin: 28px auto 0; padding: 16px 24px 0;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between;
  font-size: 12px; color: var(--text-3);
}
.ip-badge {
  background: var(--bg-1); border: 1px solid var(--line);
  padding: 4px 10px; border-radius: 999px;
  font-weight: 700; color: var(--signal-2);
}

/* ============================================================
   PRE-PILOT BANNER
   ============================================================ */
.prepilot-banner {
  background: var(--beacon-soft); color: var(--beacon);
  border-bottom: 1px solid rgba(21,94,117,0.18);
  font-size: 13px; font-weight: 600;
  padding: 8px 16px; text-align: center;
}
.prepilot-banner strong { font-weight: 700; }

/* ============================================================
   PARTNER LOGOS / FUTURE THREAD STRIP
   ============================================================ */
.thread-strip {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  margin-top: 24px;
}
.thread-strip .pill {
  background: var(--bg-1); border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 14px;
  font-size: 13px; font-weight: 600; color: var(--text-2);
}
.thread-strip .pill strong { color: var(--text-1); font-weight: 700; }