/* ===========================
   Crebrl AI — Shared Styles
   =========================== */

:root {
  --bg-deep: #FBF8F1;
  --bg-panel: #FFFFFF;
  --bg-panel-soft: #F4EFE3;
  --gold: #B9842A;
  --gold-bright: #C9952E;
  --emerald: #4D7248;
  --ink: #1B2A20;
  --cream: #1B2A20;
  --cream-soft: #5B6A5E;
  --line: rgba(15, 61, 38, 0.12);

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --container: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(77, 114, 72, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(201, 149, 46, 0.05), transparent 60%);
  color: var(--cream-soft);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--emerald); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0 0 0.5em 0;
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); line-height: 1.08; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); line-height: 1.2; }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1em;
  display: block;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Header / Nav ---------- */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 248, 241, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  height: 40px;
  width: 40px;
  object-fit: cover;
  border-radius: 50%;
}

.brand:hover { color: var(--ink); }

nav.links {
  display: flex;
  gap: 36px;
  align-items: center;
}

nav.links a {
  color: var(--cream-soft);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

nav.links a.active { color: var(--gold); }

.nav-cta {
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  padding: 9px 22px;
  border-radius: 2px;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.nav-cta:hover {
  background: var(--gold);
  color: #FFFFFF !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: 2px;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--gold);
  color: #FFFFFF !important;
}
.btn-primary:hover {
  background: #A6741F;
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--line);
  color: var(--ink) !important;
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold) !important;
}

/* ---------- Sections ---------- */

section {
  padding: 96px 0;
  border-bottom: 1px solid var(--line);
}

section:last-of-type { border-bottom: none; }

.section-head {
  max-width: 680px;
  margin-bottom: 56px;
}

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

/* ---------- Hero ---------- */

.hero {
  padding-top: 88px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.hero-logo {
  width: 132px;
  height: 132px;
  margin: 0 auto 32px;
  display: block;
  border-radius: 50%;
  box-shadow: 0 12px 40px rgba(15, 61, 38, 0.12);
}

.hero-copy {
  max-width: 720px;
  margin: 0 auto;
}

.hero-copy .eyebrow {
  display: flex;
  justify-content: center;
}

.hero-copy p.lead {
  font-size: 1.15rem;
  color: var(--cream-soft);
  max-width: 560px;
  margin: 1.4em auto 2em auto;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stats {
  display: flex;
  gap: 56px;
  margin-top: 64px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stat .num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gold);
  display: block;
}

.hero-stat .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cream-soft);
}

.hero-visual {
  max-width: 640px;
  margin: 72px auto 0;
}

/* ---------- Loop Diagram (signature element) ---------- */

.loop-diagram {
  width: 100%;
  height: auto;
  display: block;
}

.loop-diagram .boundary {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
  stroke-dasharray: 6 6;
}

.loop-diagram .trace {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 5s ease-in-out infinite;
}

.loop-diagram .trace-2 {
  stroke: var(--emerald);
  animation-delay: 0.4s;
}

.loop-diagram .node {
  fill: var(--bg-deep);
  stroke: var(--gold);
  stroke-width: 1.5;
}

.loop-diagram .node-fill {
  fill: var(--gold);
}

.loop-diagram text {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--cream-soft);
  letter-spacing: 0.05em;
}

.loop-diagram .label-gold { fill: var(--gold); }

@keyframes draw {
  0% { stroke-dashoffset: 1400; }
  45%, 55% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -1400; }
}

@media (prefers-reduced-motion: reduce) {
  .loop-diagram .trace { animation: none; stroke-dashoffset: 0; }
}

/* ---------- Cards / Grids ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 32px;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 1px 3px rgba(15, 61, 38, 0.04);
}

.card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15, 61, 38, 0.08);
}

.card .icon {
  width: 44px;
  height: 44px;
  margin-bottom: 20px;
  color: var(--gold);
}

.card h3 {
  margin-bottom: 10px;
}

.card p {
  font-size: 0.95rem;
  color: var(--cream-soft);
  margin-bottom: 0;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--emerald);
  border: 1px solid var(--emerald);
  border-radius: 100px;
  padding: 4px 12px;
  display: inline-block;
  margin-bottom: 16px;
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--bg-panel-soft);
  border-radius: 4px;
  padding: 64px;
  text-align: center;
  border: 1px solid var(--line);
}

.cta-band h2 { margin-bottom: 0.6em; }

.cta-band p {
  color: var(--cream-soft);
  max-width: 520px;
  margin: 0 auto 2em auto;
}

/* ---------- Forms (contact page) ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 32px;
}

.info-item .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
  display: block;
}

.info-item .value {
  color: var(--cream);
  font-size: 1.05rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cream-soft);
  margin-bottom: 8px;
  display: block;
}

input, textarea, select {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 13px 14px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--gold);
}

textarea { resize: vertical; min-height: 130px; }

::placeholder { color: rgba(27, 42, 32, 0.35); }

.form-note {
  font-size: 0.82rem;
  color: rgba(27, 42, 32, 0.45);
}

#form-status {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

#form-status.success { color: var(--gold); }
#form-status.error { color: #d98a6a; }

/* ---------- Pricing / model ---------- */

.model-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.model-table th, .model-table td {
  text-align: left;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.model-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 400;
}

.model-table td.highlight {
  color: var(--gold-bright);
  font-family: var(--font-mono);
}

/* ---------- Footer ---------- */

footer {
  padding: 56px 0 32px;
  border-top: 1px solid var(--line);
  background: var(--bg-panel-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand img {
  height: 36px;
  width: 36px;
  border-radius: 50%;
}

.footer-brand span {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ink);
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  font-weight: 400;
}

.footer-col a, .footer-col p {
  display: block;
  color: var(--cream-soft);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: rgba(27, 42, 32, 0.4);
  font-family: var(--font-mono);
  flex-wrap: wrap;
  gap: 12px;
}

.tagline-strip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(27, 42, 32, 0.4);
  text-align: center;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  background: var(--bg-panel-soft);
}

/* ---------- Page hero (for sub-pages) ---------- */

.page-hero {
  padding: 80px 0 64px;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.page-hero .eyebrow { display: flex; justify-content: center; }

.page-hero p {
  max-width: 600px;
  margin: 1em auto 0 auto;
  color: var(--cream-soft);
  font-size: 1.05rem;
}

/* ---------- Process steps ---------- */

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.step:last-child { border-bottom: none; }

.step .step-num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gold);
  opacity: 0.5;
}

.step h3 { margin-bottom: 6px; }
.step p { color: var(--cream-soft); font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid, .contact-grid, .grid-2 {
    grid-template-columns: 1fr;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  nav.links {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  nav.links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-deep);
    padding: 24px 32px;
    border-bottom: 1px solid var(--line);
    gap: 18px;
    align-items: flex-start;
  }
  .cta-band {
    padding: 40px 24px;
  }
}

@media (max-width: 600px) {
  section { padding: 64px 0; }
  .hero { padding-top: 100px; }
  .hero-stats { gap: 28px; }
}