/* ==========================================================================
   OPERION Advisory — Bold color-block design system
   ========================================================================== */

:root {
  --ink: #0a1b2e;
  --ink-soft: #13273f;
  --signal: #e2472b;
  --signal-dark: #b8331c;
  --cream: #f6f3ee;
  --white: #ffffff;
  --line: rgba(10, 27, 46, 0.12);
  --line-on-dark: rgba(255, 255, 255, 0.18);
  --text: #101820;
  --text-muted: #4a5563;
  --text-on-dark: #eef1f5;
  --text-on-dark-muted: #a9b4c2;
  --radius: 2px;
  --maxw: 1200px;
  --gutter: clamp(24px, 5vw, 72px);
  --ff: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--ff);
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

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

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.6rem, 5.5vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.75rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1.1em;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--signal);
  display: inline-block;
}
.eyebrow.on-dark, .eyebrow.on-signal { color: var(--white); }
.eyebrow.on-dark::before, .eyebrow.on-signal::before { background: var(--white); }

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--text-muted);
  max-width: 640px;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

section { padding: clamp(56px, 9vw, 108px) 0; }
.section-tight { padding: clamp(40px, 6vw, 64px) 0; }

.bg-cream { background: var(--cream); }
.bg-ink { background: var(--ink); color: var(--text-on-dark); }
.bg-ink h2, .bg-ink h3, .bg-ink h4 { color: var(--white); }
.bg-ink p { color: var(--text-on-dark-muted); }
.bg-signal { background: var(--signal); color: var(--white); }
.bg-signal h2, .bg-signal h3, .bg-signal p { color: var(--white); }
.bg-white { background: var(--white); }

/* ---------------- Header / Nav ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand .mark {
  width: 34px;
  height: 34px;
  background: var(--ink);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
}
.brand .tag {
  display: block;
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 34px);
  font-size: 0.92rem;
  font-weight: 600;
}
.nav-links a {
  color: var(--text);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  border-color: var(--signal);
  color: var(--signal);
}
.nav-cta {
  background: var(--ink);
  color: var(--white) !important;
  padding: 10px 20px !important;
  border-bottom: none !important;
  font-weight: 700;
}
.nav-cta:hover {
  background: var(--signal) !important;
  color: var(--white) !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  display: block;
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px var(--gutter) 28px;
    gap: 14px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-cta { width: 100%; text-align: center; }
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-weight: 700;
  font-size: 0.92rem;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--signal); color: var(--white); }
.btn-primary:hover { background: var(--signal-dark); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--ink-soft); }
.btn-outline { background: transparent; border-color: currentColor; }
.btn-outline.on-dark { color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-outline.dark-outline { color: var(--ink); border-color: var(--ink); }
.btn-outline.dark-outline:hover { background: var(--ink); color: var(--white); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 2em; }

/* ---------------- Hero ---------------- */
.hero {
  padding: clamp(64px, 10vw, 128px) 0 clamp(48px, 7vw, 88px);
  background: var(--ink);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -10%;
  top: -20%;
  width: 520px;
  height: 520px;
  background: var(--signal);
  opacity: 0.16;
  border-radius: 50%;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { color: var(--white); max-width: 15ch; }
.hero .lede { color: var(--text-on-dark-muted); }

.page-hero {
  background: var(--ink);
  color: var(--white);
  padding: clamp(52px, 8vw, 96px) 0 clamp(40px, 6vw, 64px);
}
.page-hero h1 { color: var(--white); max-width: 18ch; }
.page-hero .lede { color: var(--text-on-dark-muted); }

/* ---------------- Grids ---------------- */
.grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.grid > * { background: var(--white); padding: 34px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card-num {
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--signal);
  margin-bottom: 0.8em;
  letter-spacing: 0.06em;
}
.card ul { padding-left: 1.1em; margin: 0.8em 0 0; color: var(--text-muted); }
.card ul li { margin-bottom: 0.4em; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
}
@media (max-width: 700px) {
  .stat-row { grid-template-columns: 1fr; gap: 32px; }
}
.stat-block .num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--signal);
  display: block;
  margin-bottom: 0.2em;
}

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}
@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; }
}

.pillars-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 2em;
}
.pillar-chip {
  border: 1px solid var(--line-on-dark);
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-on-dark);
}

/* ---------------- Founder / bio ---------------- */
.avatar-badge {
  width: 68px;
  height: 68px;
  background: var(--signal);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.quote-block {
  border-left: 4px solid var(--signal);
  padding-left: 24px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
  margin: 1.4em 0;
}

/* ---------------- Timeline / process ---------------- */
.process-list { counter-reset: step; margin-top: 1.5em; }
.process-item {
  counter-increment: step;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.process-item:last-child { border-bottom: 1px solid var(--line); }
.process-item::before {
  content: counter(step, decimal-leading-zero);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--signal);
}

/* ---------------- Cards (services / insights) ---------------- */
.service-card, .insight-card {
  border: 1px solid var(--line);
  padding: 32px;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.service-card .tag, .insight-card .tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.8em;
}
.service-card ul { padding-left: 1.1em; color: var(--text-muted); margin-top: 1em; }
.service-card ul li { margin-bottom: 0.45em; }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 2.5em;
}
@media (max-width: 900px) { .cards-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .cards-grid { grid-template-columns: 1fr; } }

/* ---------------- CTA band ---------------- */
.cta-band {
  background: var(--signal);
  color: var(--white);
  padding: clamp(48px, 7vw, 80px) 0;
  text-align: left;
}
.cta-band h2 { color: var(--white); }
.cta-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
}

/* ---------------- Contact ---------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(32px, 6vw, 72px);
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

form { display: flex; flex-direction: column; gap: 18px; }
label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: block;
}
input, textarea {
  width: 100%;
  border: none;
  border-bottom: 2px solid var(--line);
  background: transparent;
  padding: 10px 2px;
  font-family: var(--ff);
  font-size: 1rem;
  color: var(--text);
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--signal);
}
textarea { resize: vertical; min-height: 120px; }

.info-block { border-top: 1px solid var(--line); padding-top: 18px; margin-bottom: 28px; }
.info-block h4 { margin-bottom: 0.3em; }
.info-block p { margin: 0; color: var(--text-muted); }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--ink);
  color: var(--text-on-dark-muted);
  padding: 56px 0 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line-on-dark);
}
@media (max-width: 780px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
.footer-top h4 {
  color: var(--white);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1em;
}
.footer-top ul { list-style: none; margin: 0; padding: 0; }
.footer-top li { margin-bottom: 0.6em; }
.footer-top a:hover { color: var(--white); }
.footer-brand .brand { color: var(--white); margin-bottom: 12px; }
.footer-brand .brand .mark { background: var(--signal); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 0.82rem;
}

/* ---------------- Utility ---------------- */
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.max-720 { max-width: 720px; }
.max-560 { max-width: 560px; }