/* =========================================================
   THEME SYSTEM – LIGHT (Periwinkle) + DARK (Deep Slate)
   ========================================================= */

/* ---------- Default: LIGHT / PERIWINKLE ---------- */
:root {
  --bg: #6c77b4;
  --card: #d7edf3;
  --muted: #EEF1FD;
  --border: #b5d3dc;      /* subtle cyan-gray edge */
  --border-neutral: var(--border);
  --shadow: 0 6px 18px rgba(8, 19, 72, 0.10);

  --text: #181066;
  --subtext: #010b18;
  --subtext2: #d3d3d4;

  --accent: #183BF0;
  --accent-2: #15803D;
  --accent-3: #4eaf35;
  --accent-4: #0a1f86;

  --radius: 14px;
}

/* ---------- DARK / DEEP SLATE ---------- */
[data-theme="dark"] {
  --bg: #242933;
  --card: #343a46;
  --muted: #323946;
  --border: #3b4252;
  --border-neutral: var(--border);
  --shadow: 0 8px 20px rgba(0, 0, 0, 0.35);

  --text: #E9ECF5;
  --subtext: #A3ACC2;
  --subtext2: #6E778A;

  --accent: #3A63FF;
  --accent-2: #00B46E;
  --accent-3: #216e0d;
  --accent-4: #4fb3a5;
}

/* =========================================================
   BASE + LAYOUT
   ========================================================= */
* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 90%, #000 10%) 100%);
  background-attachment: fixed;
}

body {
  margin: 0;
  padding-top: 80px;
  background: transparent;
  color: var(--text);
  font-family: Merriweather, Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.container { max-width: 1160px; margin: 0 auto; padding: 24px; }

/* =========================================================
   HEADER / NAV
   ========================================================= */
header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  background: color-mix(in srgb, var(--bg) 85%, #000 15%);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}
header a { color: var(--accent); }
header a:hover { color: var(--accent-2); }

.nav {
  display: flex; gap: 20px; align-items: center; justify-content: space-between;
  padding: 10px 0;
}

.brand {
  padding: 4px 18px;
  display: flex; align-items: center; gap: 10px;
  font-family: "Playfair Display", Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-weight: 700; letter-spacing: .01em; font-size: 20px;
  color: var(--text);
}

.hero-header {
  display: flex; align-items: center; gap: 10px;
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-weight: 700; letter-spacing: .02em; font-size: 28px;
  color: var(--text);
}

.cert-header {
  display: flex; align-items: center; gap: 10px;
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-weight: 700; letter-spacing: .02em; font-size: 12px;
  color: var(--text);
}

.cert-link {
  display: flex; align-items: center; gap: 10px;
  color: #3A63FF;
  font-family: sans-serif, Merriweather, "Inter Tight", Inter, system-ui;
  font-weight: 700; letter-spacing: .02em; font-size: 15px;
  color: var(--text);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  display: grid; gap: 28px; grid-template-columns: 1.15fr .85fr;
  align-items: center; padding: 80px 0 24px;
}
.hero h1, .hero h2 {
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-weight: 700; letter-spacing: -0.01em;
  line-height: 1.15;
  font-size: clamp(32px, 4.6vw, 60px);
  margin: 0 0 10px;
  color: var(--text);
}
.hero p { color: var(--subtext); font-size: clamp(16px, 2.2vw, 18px); margin: 0 0 18px; }
.hero p i { color: var(--subtext2); font-size: 14px; }

.badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 24px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* KPI card */
.hero-card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--card) 90%, #000 5%) 0%, var(--muted) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.kpi-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.kpi {
  background: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.kpi:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  border-color: var(--accent);
}
.kpi .n {
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(22px, 2.5vw, 28px);
  color: var(--accent-4);
}
.kpi .t { color: var(--subtext); font-size: 14px; }

/* =========================================================
   SECTIONS
   ========================================================= */
section { padding: 40px 0; }
.section-title {
  display: flex; align-items: center; gap: 10px;
  font-family: "Roboto", Merriweather, Inter, system-ui, sans-serif;
  font-weight: 800; letter-spacing: 0.0em;
  text-transform: uppercase;
  color: var(--text);
  font-size: clamp(18px, 2.2vw, 22px);
  font-style: normal;
  margin: 0 0 18px;
}
.section-title .line { flex: 1; height: 1px; background: var(--subtext); }

.section-title2 {
  display: flex; align-items: center; gap: 10px;
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-weight: 800; letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text);
  font-size: clamp(16px, 2.2vw, 16px);
  margin: 0 0 18px;
}
.section-title2 .line { flex: 1; height: 1px; background: var(---subtext); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
  border-color: var(--accent);
}
.card h3 {
  margin: 4px 0 8px;
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
}
.card p { color: var(--subtext); margin: 0 0 10px; font-size: 16px; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; }

/* =========================================================
   TIMELINE
   ========================================================= */
.timeline .tl-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  background: var(--card);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}
.timeline .tl-item::after {
  content: "";
  position: absolute; top: 0; left: 0; width: 100%; height: 5px;
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}
.tl-header { display: flex; align-items: center; gap: 10px; }
.tl-header img { flex-shrink: 0; border-radius: 4px; }
.tl-item h4 {
  margin: 0 0 4px;
  font-size: 17px;
  font-family: Merriweather, "Inter Tight", Inter, system-ui, sans-serif;
  font-weight: 600;
  color: var(--text);
}
.tl-item p { margin: 0; color: var(--subtext); font-size: 16px; }

/* =========================================================
   FOOTER
   ========================================================= */
footer {
  padding: 28px 0 48px;
  color: var(--subtext);
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, #000 30%);
}
.foot {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: center; justify-content: space-between;
}

/* =========================================================
   CHIPS & CTAs
   ========================================================= */
.chip, .chip3, .cta5 {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-3);
  color: var(--text);
  border: 1px solid rgba(0, 0, 0, 0.15);
  font-family: Merriweather, "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.cta, .cta2, .cta3, .cta3a, .cta3b {
  font-family: Inter, system-ui, sans-serif;
  font-weight: 600;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 15px;
  transition: all 0.2s ease;
}

/* Primary CTA */
.cta { background: var(--accent); color: #fff; border: 1px solid var(--accent); }
.cta:hover { background: color-mix(in srgb, var(--accent) 85%, #000 15%); transform: translateY(-1px); }

/* Outline Blue CTA */
.cta2 { background: transparent; color: var(--accent-4); border: 1px solid var(--accent); }
.cta2:hover { background: rgba(58,99,255,0.1); transform: translateY(-1px); }

/* Neutral Card CTA */
.cta3 { background: var(--muted); color: var(--accent-2); border: 1px solid var(--border); }
.cta3:hover { background: rgba(0,180,110,0.1); }

.cta4 { background: solid; color: var(--accent); border: 0; }
.cta4:hover { background: rgba(215, 217, 224, 0.1); transform: translateY(-1px); }

.cta6 { background: transparent; color: var(--accent); border: 0; }
.cta6:hover { transform: translateY(-2px); }

/* =========================================================
   STATUS TAGS – COMPLETED / IN-PROGRESS
   ========================================================= */
.cta3a {
  background: rgba(0, 180, 110, 0.15);
  color: #00E28A;
  border: 1px solid #00B46E;
}
.cta3a:hover {
  background: rgba(0, 180, 110, 0.25);
  border-color: #00E28A;
}

.cta3b {
  background: rgba(58, 99, 255, 0.15);
  color: #7AA2FF;
  border: 1px solid #3A63FF;
}
.cta3b:hover {
  background: rgba(58, 99, 255, 0.25);
  border-color: #7AA2FF;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) { .hero { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
  .cards { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: 1fr; }
  .nav .hide-sm { display: none; }
}

/* =========================================================
   ACCESSIBILITY
   ========================================================= */
:focus-visible {
  outline: 3px solid var(--accent-3);
  outline-offset: 3px;
  border-radius: 6px;
}