/* ============================================================
   OPERIAN GROUP LLC — MASTER DESIGN SYSTEM
   Bright, premium, architectural enterprise infrastructure brand.
   Daylight, white stone, glass, brushed metal, controlled color.
   ============================================================ */

:root {
  /* Core neutrals — warm white / pale stone, not clinical white */
  --op-bg: #FBFAF7;
  --op-surface: #FFFFFF;
  --op-surface-alt: #F3F1EA;
  --op-stone: #EDEAE1;
  --op-line: #E2DFD5;
  --op-line-strong: #C9C5B6;

  /* Ink */
  --op-ink: #14201E;
  --op-ink-soft: #3B4644;
  --op-ink-mute: #6B7472;

  /* Brand — controlled blue / green / gold, matches the approved logo mark */
  --op-blue: #1B5FA8;
  --op-blue-deep: #0C3A6B;
  --op-green: #1D7A5E;
  --op-green-deep: #0F4E3C;
  --op-gold: #B98A3D;
  --op-gold-soft: #E4C98A;

  /* Contrast moments — deep navy/charcoal, used sparingly for dark sections */
  --op-navy: #0B1A2B;
  --op-navy-soft: #16273A;
  --op-charcoal: #1C1F1E;

  /* Type */
  --op-font-display: 'Fraunces', Georgia, serif;
  --op-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --op-radius: 4px;
  --op-radius-lg: 10px;
  --op-shadow: 0 1px 2px rgba(20, 32, 30, 0.04), 0 8px 24px rgba(20, 32, 30, 0.06);
  --op-shadow-lg: 0 4px 12px rgba(20, 32, 30, 0.06), 0 24px 64px rgba(20, 32, 30, 0.10);

  --op-max: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--op-bg);
  color: var(--op-ink);
  font-family: var(--op-font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--op-font-display);
  font-weight: 500;
  line-height: 1.1;
  margin: 0 0 0.5em;
  color: var(--op-ink);
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.4rem, 4.4vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3vw, 2.7rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }
p { margin: 0 0 1.1em; max-width: 68ch; color: var(--op-ink-soft); }
p.op-lede { font-size: 1.2rem; color: var(--op-ink-soft); max-width: 58ch; }

.op-wrap { max-width: var(--op-max); margin: 0 auto; padding: 0 32px; }
.op-section { padding: 96px 0; }
.op-section--tight { padding: 64px 0; }
.op-section--stone { background: var(--op-surface-alt); }
.op-section--navy { background: var(--op-navy); color: #EDEFEF; }
.op-section--navy h2, .op-section--navy h3 { color: #FFFFFF; }
.op-section--navy p { color: #B7C2C6; }

/* Eyebrow — used sparingly, not on every heading */
.op-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--op-blue-deep);
  margin-bottom: 14px;
}
.op-section--navy .op-kicker { color: var(--op-gold-soft); }
.op-kicker::before {
  content: '';
  width: 22px;
  height: 1.5px;
  background: currentColor;
}

/* Buttons */
.op-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--op-radius);
  font-family: var(--op-font-body);
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.op-btn--primary { background: var(--op-blue-deep); color: #fff; }
.op-btn--primary:hover { background: var(--op-blue); box-shadow: var(--op-shadow); }
.op-btn--gold { background: var(--op-gold); color: #26190A; }
.op-btn--gold:hover { background: #C79A4D; }
.op-btn--ghost { background: transparent; border-color: var(--op-line-strong); color: var(--op-ink); }
.op-btn--ghost:hover { border-color: var(--op-blue-deep); color: var(--op-blue-deep); }
.op-section--navy .op-btn--ghost { border-color: rgba(255,255,255,0.3); color: #fff; }
.op-section--navy .op-btn--ghost:hover { border-color: var(--op-gold-soft); color: var(--op-gold-soft); }
/* Solid-scrim variant — required over photography; transparent ghost buttons fail contrast there */
.op-btn--on-photo { background: rgba(11, 26, 43, 0.82); color: #fff; border: 1px solid rgba(255,255,255,0.22); backdrop-filter: blur(6px); }
.op-btn--on-photo:hover { background: rgba(11, 26, 43, 0.95); border-color: rgba(255,255,255,0.4); }

/* Nav */
.op-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--op-line);
}
.op-nav__inner { display: flex; align-items: center; justify-content: space-between; padding: 18px 32px; max-width: var(--op-max); margin: 0 auto; }
.op-nav__logo { display: flex; align-items: center; gap: 10px; font-family: var(--op-font-display); font-size: 1.15rem; font-weight: 600; color: var(--op-ink); }
.op-nav__logo span { color: var(--op-blue-deep); }
.op-nav__links { display: flex; align-items: center; gap: 30px; font-size: 0.94rem; font-weight: 500; }
.op-nav__links a { color: var(--op-ink-soft); }
.op-nav__links a:hover { color: var(--op-blue-deep); }
.op-nav__menu-btn { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
@media (max-width: 900px) {
  .op-nav__links { display: none; }
  .op-nav__menu-btn { display: block; }
}

/* Footer */
.op-footer { background: var(--op-navy); color: #A9B4B8; padding: 64px 0 32px; }
.op-footer a { color: #D7DEE0; }
.op-footer a:hover { color: var(--op-gold-soft); }
.op-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.op-footer__grid h4 { color: #fff; font-family: var(--op-font-body); font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 16px; }
.op-footer__grid ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 0.92rem; }
.op-footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; color: #7C8B90; }
@media (max-width: 800px) { .op-footer__grid { grid-template-columns: 1fr 1fr; } }

/* Cards */
.op-card {
  background: var(--op-surface);
  border: 1px solid var(--op-line);
  border-radius: var(--op-radius-lg);
  padding: 32px;
}

/* Image frame — architectural containment for campaign photography */
.op-frame {
  position: relative;
  border-radius: var(--op-radius-lg);
  overflow: hidden;
  box-shadow: var(--op-shadow-lg);
}
.op-frame img { width: 100%; height: 100%; object-fit: cover; }
.op-frame__caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(11,26,43,0.82), transparent);
  color: #fff;
  font-size: 0.85rem;
}

/* Disclaimer note — used for illustrative-scenario language */
.op-note {
  font-size: 0.82rem;
  color: var(--op-ink-mute);
  border-left: 2px solid var(--op-line-strong);
  padding-left: 14px;
  max-width: 60ch;
}

/* Pipeline stages — native HTML, not baked into images */
.op-pipeline { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.op-pipeline__stage {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  width: 108px;
}
.op-pipeline__num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--op-surface); border: 1.5px solid var(--op-blue-deep);
  color: var(--op-blue-deep); font-weight: 600; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
}
.op-pipeline__label { font-size: 0.8rem; font-weight: 600; color: var(--op-ink); }
.op-pipeline__arrow { color: var(--op-line-strong); font-size: 1.2rem; }
@media (max-width: 700px) {
  .op-pipeline { flex-direction: column; align-items: flex-start; }
  .op-pipeline__arrow { transform: rotate(90deg); align-self: center; }
}

/* Grid utilities */
.op-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.op-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
@media (max-width: 860px) {
  .op-grid-2 { grid-template-columns: 1fr; gap: 32px; }
  .op-grid-3 { grid-template-columns: 1fr; }
}

.op-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.76rem;
  font-weight: 600;
  background: var(--op-surface-alt);
  color: var(--op-ink-soft);
  border: 1px solid var(--op-line);
}
.op-badge--gold { background: #FBF1DE; color: #7A5A1E; border-color: #E9D5A4; }
.op-badge--green { background: #E5F2ED; color: var(--op-green-deep); border-color: #BFDFD1; }