/* BASE STYLES */
:root {
  --bg-main: #F5F7F6;
  --bg-surface: #FFFFFF;
  --text-deep: #17202A;
  --brand-blue: #2F6B8F;
  --brand-green: #3D7A5F;
  --brand-sand: #D8C5A3;
  --border-grid: #D8E0DD;
  --alert-amber: #C48A3A;
  --text-muted: #65706C;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-deep);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--brand-green);
}

h1, h2, h3, h4, h5 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-deep);
  letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
p { margin-bottom: 1.5rem; color: var(--text-muted); }

/* QUIET INTELLIGENCE GRID SYSTEM */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.grid-layout {
  display: grid;
  gap: 2rem;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.surface-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-grid);
  padding: 2rem;
  position: relative;
}

.surface-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--brand-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.surface-card:hover::before {
  transform: scaleX(1);
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--text-deep);
  color: var(--bg-surface);
  border-color: var(--text-deep);
}

.btn-primary:hover {
  background-color: var(--bg-surface);
  color: var(--text-deep);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-deep);
  border-color: var(--border-grid);
}

.btn-secondary:hover {
  border-color: var(--text-deep);
}

/* HEADER & NAV */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-grid);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.brand-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-deep);
  letter-spacing: -0.03em;
}

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.main-nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.main-nav a:hover, .main-nav a.active {
  color: var(--text-deep);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text-deep);
}

/* SECTIONS */
section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-grid);
}

.section-header {
  margin-bottom: 3rem;
  max-width: 800px;
}

/* HERO */
.hero {
  padding: 6rem 0;
  background-image: 
    linear-gradient(var(--border-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
}

.hero h1 {
  font-size: 3.5rem;
  max-width: 900px;
  margin-bottom: 1.5rem;
}

.hero p.lead {
  font-size: 1.25rem;
  max-width: 700px;
  margin-bottom: 2rem;
}

/* SERVICE FINDER */
.service-finder-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.finder-tab {
  background: var(--bg-surface);
  border: 1px solid var(--border-grid);
  padding: 1rem;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.2s;
}

.finder-tab.active, .finder-tab:hover {
  border-color: var(--brand-blue);
  color: var(--text-deep);
}

.finder-content {
  display: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-grid);
  padding: 2rem;
  border-left: 4px solid var(--brand-blue);
}

.finder-content.active {
  display: block;
}

/* DATA MATURITY MAP */
.maturity-map {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.maturity-stage {
  display: flex;
  align-items: center;
  gap: 2rem;
  background: var(--bg-surface);
  padding: 1.5rem;
  border: 1px solid var(--border-grid);
}

.maturity-stage .stage-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--border-grid);
  font-weight: 300;
}

.maturity-stage.active-stage {
  border-color: var(--brand-green);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.maturity-stage.active-stage .stage-num {
  color: var(--brand-green);
}

/* FORMS */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-deep);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-grid);
  background: var(--bg-surface);
  font-family: var(--font-main);
  color: var(--text-deep);
}

.form-control:focus {
  outline: none;
  border-color: var(--brand-blue);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* FOOTER */
.site-footer {
  background: var(--bg-surface);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-grid);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-links h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--text-deep);
}

.footer-bottom {
  border-top: 1px solid var(--border-grid);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--text-deep);
  color: var(--bg-surface);
  padding: 1.5rem;
  z-index: 9999;
  display: none; /* hidden by default, JS controls */
  flex-direction: column;
  gap: 1rem;
}

.cookie-banner p {
  color: var(--bg-surface);
  margin: 0;
  font-size: 0.9rem;
}

.cookie-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cookie-actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

.btn-cookie-accept {
  background: var(--brand-green);
  color: white;
}
.btn-cookie-reject, .btn-cookie-manage {
  background: transparent;
  border: 1px solid var(--bg-surface);
  color: white;
}

/* UTILITIES & ANIMATIONS */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-2 { margin-top: 2rem; }
.alert-note {
  background: rgba(196, 138, 58, 0.1);
  border-left: 3px solid var(--alert-amber);
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--text-deep);
}

/* RESPONSIVE */
@media (max-width: 1200px) {
  .hero h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .nav-toggle {
    display: block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--border-grid);
    box-shadow: 0 10px 10px rgba(0,0,0,0.05);
  }
  .main-nav.show {
    display: flex;
  }
  .hero h1 { font-size: 2.2rem; }
  .maturity-stage { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

@media (max-width: 480px) {
  .hero { padding: 4rem 0; }
  .section-header h2 { font-size: 1.75rem; }
  .cookie-actions { flex-direction: column; }
}