/* ============================================================
   BASE & RESET
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green-dark:   #1a4a2e;
  --green-mid:    #2d7a4f;
  --green-light:  #4caf77;
  --green-pale:   #e8f5ee;
  --gold:         #c8a84b;
  --gold-light:   #f5e9c4;
  --text:         #1e2a22;
  --text-light:   #4a5e52;
  --white:        #ffffff;
  --off-white:    #f7faf8;
  --border:       #cde0d6;
  --shadow:       0 2px 12px rgba(26, 74, 46, 0.10);
  --radius:       8px;
  --radius-lg:    16px;
  --font-sans:    'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif:   Georgia, 'Times New Roman', serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--off-white);
}

img { max-width: 100%; display: block; }
a { color: var(--green-mid); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4 {
  line-height: 1.25;
  color: var(--green-dark);
}

h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 1rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
h4 { font-size: 1rem; }

p { margin-bottom: 1rem; color: var(--text-light); }
p:last-child { margin-bottom: 0; }

ul, ol { padding-left: 1.4rem; color: var(--text-light); }
li { margin-bottom: 0.35rem; }

strong { color: var(--text); }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section--alt {
  background: var(--white);
}

.section--dark {
  background: var(--green-dark);
  color: var(--white);
}

.section--dark h2,
.section--dark h3,
.section--dark p { color: var(--white); }

.section-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: 0.5rem;
}

.section--dark .section-label { color: var(--green-light); }

.section-intro {
  max-width: 680px;
  margin-bottom: 3rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .two-col, .three-col { grid-template-columns: 1fr; }
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
  background: var(--green-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.nav-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-brand span { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  padding: 0;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255,255,255,0.12);
  color: var(--white);
  text-decoration: none;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, #2d5a3f 60%, #1a4a2e 100%);
  color: var(--white);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: var(--off-white);
  clip-path: ellipse(60% 100% at 50% 100%);
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 620px;
  margin-bottom: 2rem;
}

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

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  text-decoration: none;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }

.btn-primary {
  background: var(--gold);
  color: var(--green-dark);
}

.btn-primary:hover { background: #d4b25a; }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

.btn-green {
  background: var(--green-mid);
  color: var(--white);
}

.btn-green:hover { background: var(--green-dark); }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: transform 0.15s, box-shadow 0.15s;
}

.card:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(26,74,46,0.13); }

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card h3 { color: var(--green-dark); }

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.tag-license  { background: #dbeafe; color: #1e40af; }
.tag-startup  { background: #fef3c7; color: #92400e; }
.tag-open     { background: #d1fae5; color: #065f46; }
.tag-research { background: #ede9fe; color: #5b21b6; }

/* ============================================================
   TRAIL STEPS
   ============================================================ */
.trail-steps {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.trail-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  position: relative;
  padding-bottom: 2.5rem;
}

.trail-step:last-child { padding-bottom: 0; }

.trail-step:not(:last-child) .step-line::after {
  content: '';
  position: absolute;
  left: 29px;
  top: 60px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.step-line {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--green-dark);
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  z-index: 1;
}

.trail-step.active .step-num {
  background: var(--gold);
  color: var(--green-dark);
}

.step-body {
  padding-top: 0.6rem;
}

.step-body h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.step-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-mid);
  background: var(--green-pale);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.step-resources {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chip {
  display: inline-block;
  font-size: 0.78rem;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.15rem 0.65rem;
  color: var(--text-light);
}

/* ============================================================
   PATHWAY CARDS (pathways page)
   ============================================================ */
.pathway-hero {
  padding: 4rem 0 2rem;
  background: linear-gradient(135deg, var(--green-dark) 0%, #2d5a3f 100%);
  color: white;
}

.pathway-hero h1 { color: white; }
.pathway-hero p { color: rgba(255,255,255,0.85); }

.pathway-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.pathway-card-header {
  padding: 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.pathway-card-header .icon { font-size: 2.5rem; }

.pathway-card-header h2 { margin-bottom: 0.25rem; }

.pathway-card-body { padding: 0 2rem 2rem; }

.pathway-card-body h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: 0.75rem;
  margin-top: 1.25rem;
}

.pathway-card--license .pathway-card-header { background: #dbeafe; }
.pathway-card--startup .pathway-card-header { background: #fef3c7; }
.pathway-card--open    .pathway-card-header { background: #d1fae5; }

/* ============================================================
   RESOURCE LIST
   ============================================================ */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.resource-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  box-shadow: var(--shadow);
  transition: transform 0.15s;
}

.resource-card:hover { transform: translateY(-2px); }

.resource-card .icon { font-size: 1.5rem; }
.resource-card h3 { font-size: 1rem; margin-bottom: 0; }
.resource-card p { font-size: 0.88rem; margin-bottom: 0; }
.resource-card a { font-size: 0.85rem; font-weight: 600; }

/* ============================================================
   CASE STUDIES
   ============================================================ */
.case-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.15s;
}

.case-card:hover { transform: translateY(-3px); }

.case-card-accent {
  height: 6px;
}

.accent-license { background: #3b82f6; }
.accent-startup { background: #f59e0b; }
.accent-open    { background: #10b981; }

.case-card-body { padding: 1.5rem; }

.case-card-body .meta {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.case-card-body h3 { font-size: 1.05rem; }

/* ============================================================
   STAT BAR
   ============================================================ */
.stat-bar {
  background: var(--green-dark);
  padding: 2.5rem 0;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-around;
  text-align: center;
}

.stat-item .num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--gold);
  display: block;
}

.stat-item .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--green-mid), var(--green-dark));
  color: var(--white);
  padding: 3.5rem 0;
  text-align: center;
}

.cta-banner h2 { color: var(--white); margin-bottom: 0.75rem; }
.cta-banner p  { color: rgba(255,255,255,0.85); margin-bottom: 1.5rem; max-width: 540px; margin-left: auto; margin-right: auto; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #111d15;
  color: rgba(255,255,255,0.6);
  padding: 3rem 0 1.5rem;
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand p { color: rgba(255,255,255,0.5); margin-top: 0.5rem; }
.footer-brand strong { color: var(--white); font-size: 1rem; }

.footer-col h4 {
  color: var(--white);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 0.4rem; }
.footer-col a { color: rgba(255,255,255,0.55); }
.footer-col a:hover { color: var(--white); text-decoration: none; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header {
  background: linear-gradient(135deg, var(--green-dark) 0%, #2d5a3f 100%);
  padding: 3.5rem 0 3rem;
}

.page-header h1 { color: var(--white); margin-bottom: 0.5rem; }
.page-header p  { color: rgba(255,255,255,0.8); max-width: 620px; }

/* ============================================================
   ACCORDION (FAQ)
   ============================================================ */
.faq-list { display: flex; flex-direction: column; gap: 0.75rem; }

details.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

summary.faq-q {
  font-weight: 600;
  cursor: pointer;
  color: var(--green-dark);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary.faq-q::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--green-mid);
  transition: transform 0.2s;
}

details[open] summary.faq-q::after { content: '−'; }

.faq-a {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
}

/* ============================================================
   ALERT / CALLOUT
   ============================================================ */
.callout {
  border-left: 4px solid var(--green-mid);
  background: var(--green-pale);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
}

.callout.callout-gold {
  border-color: var(--gold);
  background: var(--gold-light);
}

.callout p { color: var(--text); margin-bottom: 0; }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1rem;
}

.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: white; }
.breadcrumb span { margin: 0 0.4rem; }

/* ============================================================
   PROCESS TABLE
   ============================================================ */
.process-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.process-table th {
  background: var(--green-dark);
  color: var(--white);
  padding: 0.9rem 1.25rem;
  text-align: left;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.process-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-light);
}

.process-table tr:last-child td { border-bottom: none; }
.process-table tr:hover td { background: var(--green-pale); }

/* ============================================================
   WORKFLOWS PAGE
   ============================================================ */
.workflow-phase-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}

.workflow-phase-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.workflow-phase-card h3 {
  margin-top: 0.35rem;
  margin-bottom: 0.45rem;
}

.workflow-phase-card ul {
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.workflow-lanes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.workflow-lane {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.workflow-lane-sub {
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 0.8rem;
}

.workflow-lane ol {
  margin-bottom: 0;
}

@media (max-width: 1024px) {
  .workflow-phase-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .workflow-phase-grid,
  .workflow-lanes {
    grid-template-columns: 1fr;
  }
}