/* Amperion Group of Energy Solutions (AGES) — site stylesheet */

:root {
  --navy-950: #0a0f1c;
  --navy-900: #0e1526;
  --navy-800: #141d33;
  --navy-700: #1c2942;
  --navy-600: #2a3a5c;
  --ink: #101521;
  --slate-600: #4a5568;
  --slate-500: #6b7488;
  --slate-300: #c7ccd6;
  --slate-100: #eef0f4;
  --paper: #ffffff;
  --paper-soft: #f6f7fa;
  --amber: #e0a02e;
  --amber-dark: #b97e1c;
  --copper: #c96a3d;
  --teal: #2f9e8f;
  --border: #e2e5eb;
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(10, 15, 28, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 15, 28, 0.08);
  --shadow-lg: 0 20px 48px rgba(10, 15, 28, 0.16);
  --max: 1160px;
  font-size: 16px;
}

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

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: "Sora", Inter, sans-serif; line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 650; }
p { margin: 0 0 1em; color: var(--slate-600); }
.lede { font-size: 1.15rem; color: var(--slate-600); max-width: 720px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-dark);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--amber);
  display: inline-block;
}
.eyebrow.on-dark { color: var(--amber); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary { background: var(--amber); color: var(--navy-950); }
.btn-primary:hover { background: #eab13f; box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--paper); border-color: rgba(255,255,255,0.35); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-outline { background: transparent; color: var(--navy-900); border-color: var(--border); }
.btn-outline:hover { border-color: var(--navy-600); background: var(--paper-soft); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
}
.brand .mark { width: 34px; height: 34px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text .full { font-family: "Sora", sans-serif; font-weight: 700; font-size: 0.98rem; letter-spacing: 0.01em; }
.brand-text .sub { font-size: 0.68rem; color: var(--slate-300); letter-spacing: 0.08em; text-transform: uppercase; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  color: var(--slate-300);
  font-size: 0.92rem;
  font-weight: 550;
  padding: 10px 16px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--paper); background: rgba(255,255,255,0.06); }
.nav-links a.active { color: var(--amber); }
.nav-cta { margin-left: 10px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--paper);
  cursor: pointer;
  padding: 8px;
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 880px) {
  .nav-links { position: fixed; top: 76px; left: 0; right: 0; background: var(--navy-950); flex-direction: column; align-items: stretch; padding: 10px 20px 24px; gap: 2px; border-bottom: 1px solid rgba(255,255,255,0.08); transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity 0.18s, transform 0.18s, visibility 0.18s; }
  .nav-links.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links a { padding: 14px 10px; border-bottom: 1px solid rgba(255,255,255,0.05); }
  .nav-cta { margin-left: 0; margin-top: 8px; text-align: center; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(1200px 600px at 85% -10%, rgba(224,160,46,0.16), transparent 60%),
              linear-gradient(180deg, var(--navy-950), var(--navy-900) 60%, var(--navy-800));
  color: var(--paper);
  padding: 90px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(180deg, transparent, rgba(0,0,0,0.5) 40%, transparent);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; }
.hero p.lede { color: var(--slate-300); }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.chain {
  position: relative;
  z-index: 1;
  margin-top: 64px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-family: "Sora", sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate-300);
}
.chain span.node { padding: 8px 14px; border: 1px solid rgba(255,255,255,0.16); border-radius: 999px; background: rgba(255,255,255,0.04); }
.chain span.arrow { color: var(--amber); }

.page-hero {
  background: linear-gradient(180deg, var(--navy-950), var(--navy-800));
  color: var(--paper);
  padding: 64px 0 56px;
}
.page-hero .lede { color: var(--slate-300); }
.crumb { font-size: 0.85rem; color: var(--slate-300); margin-bottom: 18px; }
.crumb a:hover { color: var(--amber); }

/* ---------- Sections ---------- */
section { padding: 88px 0; }
section.tight { padding: 56px 0; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.bg-soft { background: var(--paper-soft); }
.bg-navy { background: linear-gradient(180deg, var(--navy-900), var(--navy-800)); color: var(--paper); }
.bg-navy p { color: var(--slate-300); }
.bg-navy h2, .bg-navy h3 { color: var(--paper); }

/* ---------- Stats strip ---------- */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-cell { background: var(--navy-900); padding: 28px 22px; }
.stat-num { font-family: "Sora", sans-serif; font-weight: 700; font-size: 2rem; color: var(--amber); }
.stat-label { font-size: 0.85rem; color: var(--slate-300); margin-top: 6px; }
@media (max-width: 880px) { .stats-strip { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.pillar-card { display: flex; flex-direction: column; height: 100%; }
.pillar-tag {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 12px;
  font-family: "Sora", sans-serif; font-weight: 700; font-size: 0.95rem;
  margin-bottom: 18px;
  color: var(--paper);
}
.pillar-tag.aepl { background: linear-gradient(135deg, var(--teal), #1d6f64); }
.pillar-tag.amat { background: linear-gradient(135deg, var(--amber), var(--copper)); }
.pillar-tag.atic { background: linear-gradient(135deg, var(--navy-600), var(--navy-800)); }
.pillar-card h3 { margin-bottom: 4px; }
.pillar-card .full-name { font-size: 0.85rem; color: var(--slate-500); margin-bottom: 14px; }
.pillar-card ul { margin: 14px 0 20px; padding-left: 18px; color: var(--slate-600); font-size: 0.94rem; }
.pillar-card ul li { margin-bottom: 6px; }
.card-link { margin-top: auto; font-weight: 650; color: var(--navy-800); display: inline-flex; align-items: center; gap: 6px; }
.card-link svg { width: 16px; height: 16px; transition: transform 0.15s; }
.card-link:hover svg { transform: translateX(3px); }

/* ---------- Feature list rows ---------- */
.feature-row { display: grid; grid-template-columns: 44px 1fr; gap: 18px; margin-bottom: 26px; }
.feature-row .icon { width: 44px; height: 44px; border-radius: 10px; background: var(--paper-soft); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; }
.feature-row .icon svg { width: 22px; height: 22px; color: var(--amber-dark); }
.feature-row h4 { margin-bottom: 4px; font-size: 1.05rem; }
.feature-row p { margin: 0; font-size: 0.95rem; }

/* ---------- Timeline / phases ---------- */
.phase-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .phase-track { grid-template-columns: 1fr; } }
.phase {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
  background: var(--paper);
}
.phase .num { font-family: "Sora", sans-serif; font-weight: 700; color: var(--amber-dark); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; }
.phase h4 { margin: 8px 0 10px; }
.phase ul { padding-left: 18px; margin: 0; color: var(--slate-600); font-size: 0.92rem; }
.phase ul li { margin-bottom: 6px; }

/* ---------- Flywheel ---------- */
.flywheel { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
@media (max-width: 900px) { .flywheel { grid-template-columns: 1fr; } }
.flywheel .node {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 26px;
  background: rgba(255,255,255,0.03);
}
.flywheel .node h4 { color: var(--paper); }

/* ---------- Table-ish value chain ---------- */
.chain-list { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.chain-row { display: grid; grid-template-columns: 60px 1fr 120px; gap: 16px; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.chain-row:last-child { border-bottom: none; }
.chain-row .idx { font-family: "Sora", sans-serif; font-weight: 700; color: var(--slate-500); }
.chain-row .label b { display: block; }
.chain-row .label span { color: var(--slate-500); font-size: 0.9rem; }
.chain-row .tag { justify-self: end; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; }
.tag-build { background: #fdeecb; color: var(--amber-dark); }
.tag-buy { background: var(--slate-100); color: var(--slate-600); }

/* ---------- Quote / callout ---------- */
.callout {
  border-left: 3px solid var(--amber);
  padding: 6px 0 6px 22px;
  font-family: "Sora", sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy-900);
  max-width: 760px;
}

/* ---------- Fact list (About / registration details) ---------- */
.fact-list { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--paper); }
.fact-row { display: grid; grid-template-columns: 220px 1fr; gap: 20px; padding: 16px 22px; border-bottom: 1px solid var(--border); }
.fact-row:last-child { border-bottom: none; }
.fact-row dt { font-weight: 650; color: var(--slate-500); font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.04em; margin: 0; }
.fact-row dd { margin: 0; color: var(--ink); }
@media (max-width: 640px) { .fact-row { grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  color: var(--paper);
  border-radius: 20px;
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h3 { margin-bottom: 6px; }
.cta-band p { color: var(--slate-300); margin: 0; }

/* ---------- Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 0.88rem; font-weight: 650; margin-bottom: 6px; color: var(--slate-600); }
.form-field input, .form-field textarea, .form-field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.96rem;
  background: var(--paper);
  color: var(--ink);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-note {
  margin-top: 14px;
  font-size: 0.86rem;
  color: var(--slate-500);
  background: var(--paper-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
}
.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 10px;
  background: #eaf7f0;
  border: 1px solid #bfe7cf;
  color: #1b6b3a;
  font-weight: 600;
  font-size: 0.92rem;
}
.contact-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; margin-bottom: 18px; }
.contact-card h4 { margin-bottom: 10px; }
.contact-card .line { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 10px; font-size: 0.94rem; color: var(--slate-600); }
.contact-card .line svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--amber-dark); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: var(--slate-300); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h5 { color: var(--paper); font-size: 0.85rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 14px; }
.footer-grid a, .footer-grid p { color: var(--slate-300); font-size: 0.92rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-grid ul a:hover { color: var(--amber); }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; color: var(--paper); }
.footer-brand .mark { width: 30px; height: 30px; }
.footer-brand span { font-family: "Sora", sans-serif; font-weight: 700; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; color: var(--slate-500); }

/* ---------- Utility ---------- */
.text-center { text-align: center; margin-left: auto; margin-right: auto; }
.mt-0 { margin-top: 0; }
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }