@import url('https://fonts.googleapis.com/css2?family=Fjalla+One&family=Spectral:ital,wght@0,300;0,400;1,300;1,400&family=Courier+Prime:wght@400&display=swap');

:root {
  --obsidian:   #060402;
  --magma-dark: #100604;
  --crust:      #1c0c06;
  --lava-dark:  #300e04;
  --lava:       #6a1a04;
  --ember:      #c83010;
  --flame:      #e85010;
  --glow:       #f08028;
  --ash:        #c0a080;
  --pumice:     #e0c090;
  --sulfur:     #d0c820;
  --gas-green:  #40c060;
  --smoke:      #606060;
  --text-main:  #ead0a8;
  --text-muted: #906040;
  --card-bg:    rgba(24,8,2,0.78);
  --card-border:rgba(200,48,16,0.2);
  --mono:       'Courier Prime', 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Spectral', Georgia, serif;
  background: var(--obsidian);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Magma glow background ── */
.magma-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 90%  60% at 50% 100%, rgba(106,26,4,0.55) 0%, transparent 62%),
    radial-gradient(ellipse 55%  35% at 10% 80%,  rgba(200,48,16,0.12) 0%, transparent 55%),
    radial-gradient(ellipse 50%  30% at 90% 70%,  rgba(232,80,16,0.08) 0%, transparent 50%),
    linear-gradient(175deg, #060402 0%, #100806 50%, #060402 100%);
}
.magma-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 200px; opacity: 0.7; mix-blend-mode: overlay;
}

/* ── Ember canvas ── */
#ember-canvas {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
}

/* ── Scroll progress ── */
#progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--lava), var(--glow));
  z-index: 9999; pointer-events: none;
}

/* ── Layout ── */
.wrap {
  position: relative; z-index: 1;
  max-width: 1000px; margin: 0 auto; padding: 0 28px 100px;
}

/* ━━━━━━━━━━━━━━━━ HERO ━━━━━━━━━━━━━━━━ */
.hero {
  min-height: 88vh; display: flex; flex-direction: column;
  justify-content: flex-end; padding-bottom: 56px;
  opacity: 0; animation: eruptIn 1.2s 0.1s cubic-bezier(0.16,1,0.3,1) forwards;
}
@keyframes eruptIn {
  from { opacity:0; transform: translateY(36px) scale(0.97); }
  to   { opacity:1; transform: none; }
}

.hero-eyebrow {
  font-family: var(--mono); font-size: 0.67rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--glow); margin-bottom: 22px;
}

.hero h1 {
  font-family: 'Fjalla One', Impact, sans-serif;
  font-size: clamp(5.5rem, 18vw, 17rem);
  font-weight: 400; line-height: 0.82; letter-spacing: -0.03em;
  text-transform: uppercase;
  background: linear-gradient(160deg, #f0a060 0%, #e85010 40%, #c03010 70%, #800808 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  position: relative;
}
.hero h1::after {
  content: 'VOLCAN';
  position: absolute; inset: 0;
  background: none; -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 1px rgba(200,48,16,0.15);
  transform: translate(3px, 3px);
}

.hero-stripe {
  height: 1px; width: 100%; margin: 28px 0 24px;
  background: linear-gradient(90deg, transparent, var(--ember), var(--lava), transparent);
  opacity: 0.4;
}
.hero-bottom {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}
.hero-fact-val {
  font-family: 'Fjalla One', sans-serif; font-size: 2.5rem;
  color: var(--glow); line-height: 1; display: block; margin-bottom: 4px;
}
.hero-fact-lbl { font-size: 0.85rem; font-style: italic; color: var(--text-muted); line-height: 1.45; }
.hero-desc {
  grid-column: 1/-1; font-size: 1.1rem; font-style: italic;
  line-height: 1.83; color: var(--text-muted); max-width: 700px;
}

/* ━━━━━━━━━━━━━━━━ DIVIDER ━━━━━━━━━━━━━━━━ */
.lava-rule {
  width: 100%; height: 1px; margin: 64px 0;
  background: linear-gradient(90deg, transparent, var(--ember), var(--lava), transparent);
  opacity: 0.35; position: relative;
}
.lava-rule::before {
  content: '🌋'; position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%); font-size: 1rem; line-height: 1;
}

/* ━━━━━━━━━━━━━━━━ SEC UTILS ━━━━━━━━━━━━━━━━ */
.sec-tag {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--ember); margin-bottom: 10px;
}
.sec-h2 {
  font-family: 'Fjalla One', sans-serif; font-size: clamp(1.8rem, 5vw, 3.5rem);
  font-weight: 400; text-transform: uppercase; letter-spacing: -0.01em;
  color: var(--pumice); margin-bottom: 30px; line-height: 1;
}

/* ━━━━━━━━━━━━━━━━ FORMATION ━━━━━━━━━━━━━━━━ */
.formation-section { opacity: 0; animation: rise 0.8s forwards; }

.formation-visual {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.form-col { display: flex; flex-direction: column; gap: 16px; }
.form-item {
  padding: 22px 24px; background: var(--card-bg);
  border: 1px solid var(--card-border); border-radius: 10px;
  backdrop-filter: blur(12px); transition: border-color 0.3s, transform 0.3s;
  position: relative; overflow: hidden;
}
.form-item:hover { border-color: rgba(200,48,16,0.5); transform: translateX(4px); }
.form-item::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(to bottom, var(--ember), var(--lava));
}
.form-item h3 {
  font-family: 'Fjalla One', sans-serif; font-size: 1rem; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--ash); margin-bottom: 8px;
}
.form-item p { font-size: 0.9rem; line-height: 1.73; color: var(--text-muted); }

/* ━━━━━━━━━━━━━━━━ ERUPTION TYPES ━━━━━━━━━━━━━━━━ */
.types-section { opacity: 0; animation: rise 0.8s forwards; }

.eruption-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: rgba(200,48,16,0.1); border-radius: 14px; overflow: hidden;
}
.erup-cell {
  background: var(--card-bg); padding: 26px 22px; backdrop-filter: blur(12px);
  transition: background 0.3s; position: relative; overflow: hidden;
  cursor: default;
}
.erup-cell:hover { background: rgba(48,14,4,0.85); }
.erup-cell::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--flame), transparent);
  opacity: 0; transition: opacity 0.35s;
}
.erup-cell:hover::after { opacity: 1; }
.erup-icon { font-size: 1.9rem; margin-bottom: 12px; display: block; }
.erup-cell h3 {
  font-family: 'Fjalla One', sans-serif; font-size: 1.08rem; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--ash); margin-bottom: 10px;
}
.erup-cell p { font-size: 0.9rem; line-height: 1.72; color: var(--text-muted); }
.erup-example {
  margin-top: 12px; font-family: var(--mono); font-size: 0.65rem;
  color: var(--ember); letter-spacing: 0.1em;
}

/* ━━━━━━━━━━━━━━━━ DANGERS ━━━━━━━━━━━━━━━━ */
.dangers-section { opacity: 0; animation: rise 0.8s forwards; }

.dangers-list { display: flex; flex-direction: column; gap: 0;
  border: 1px solid var(--card-border); border-radius: 14px; overflow: hidden; }
.danger-row {
  display: grid; grid-template-columns: 8px 64px 200px 1fr;
  align-items: center; gap: 0;
  border-bottom: 1px solid rgba(200,48,16,0.08);
  transition: background 0.25s; cursor: default;
}
.danger-row:last-child { border-bottom: none; }
.danger-row:hover { background: rgba(48,14,4,0.5); }
.danger-heat { min-height: 100%; }
.danger-icon-col { font-size: 1.6rem; padding: 20px; display: flex; align-items: center; justify-content: center; }
.danger-name {
  font-family: 'Fjalla One', sans-serif; font-size: 1rem; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--ash); padding: 20px 24px;
  border-right: 1px solid rgba(200,48,16,0.1); display: flex; align-items: center;
}
.danger-desc { padding: 20px 24px; font-size: 0.9rem; line-height: 1.7; color: var(--text-muted); }

/* ━━━━━━━━━━━━━━━━ VEI TABLE ━━━━━━━━━━━━━━━━ */
.vei-section { opacity: 0; animation: rise 0.8s forwards; }

.vei-table { width: 100%; border-collapse: collapse; }
.vei-table th {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--ember);
  padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--card-border);
}
.vei-table td {
  padding: 14px 16px; border-bottom: 1px solid rgba(200,48,16,0.06);
  font-size: 0.91rem; color: var(--text-muted); vertical-align: middle;
}
.vei-table tr:hover td { background: rgba(200,48,16,0.04); }
.vei-table td:first-child {
  font-family: 'Fjalla One', sans-serif; font-size: 1.8rem;
  color: var(--glow); line-height: 1; width: 50px;
}
.vei-example { font-style: italic; color: var(--ash); }

/* ━━━━━━━━━━━━━━━━ BENEFITS ━━━━━━━━━━━━━━━━ */
.benefits-section { opacity: 0; animation: rise 0.8s forwards; }

.benefits-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px;
}
.benefit-card {
  padding: 22px 20px; background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 12px; backdrop-filter: blur(10px);
  transition: transform 0.3s, box-shadow 0.3s;
}
.benefit-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(100,26,4,0.4); }
.benefit-icon { font-size: 1.8rem; margin-bottom: 12px; display: block; }
.benefit-card h3 {
  font-family: 'Fjalla One', sans-serif; font-size: 1rem; text-transform: uppercase;
  letter-spacing: 0.03em; color: var(--ash); margin-bottom: 8px;
}
.benefit-card p { font-size: 0.89rem; line-height: 1.7; color: var(--text-muted); }

/* ━━━━━━━━━━━━━━━━ SURVEILLANCE ━━━━━━━━━━━━━━━━ */
.surveillance-section { opacity: 0; animation: rise 0.8s forwards; }

.surv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.surv-item {
  display: grid; grid-template-columns: 52px 1fr; gap: 16px; padding: 20px 22px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 12px; align-items: start; transition: border-color 0.3s;
}
.surv-item:hover { border-color: rgba(200,48,16,0.45); }
.surv-icon { font-size: 1.8rem; }
.surv-item h3 {
  font-size: 1rem; font-weight: 400; color: var(--ash); margin-bottom: 5px;
}
.surv-item p { font-size: 0.88rem; line-height: 1.68; color: var(--text-muted); }

/* ━━━━━━━━━━━━━━━━ FOOTER ━━━━━━━━━━━━━━━━ */
footer {
  margin-top: 80px; padding-top: 22px;
  border-top: 1px solid rgba(200,48,16,0.18);
  text-align: center; font-family: var(--mono);
  font-size: 0.62rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--text-muted); opacity: 0.5;
}

@keyframes rise { from { opacity:0; transform: translateY(18px); } to { opacity:1; transform:none; } }

.formation-section   { animation-delay: 0.8s; }
.types-section       { animation-delay: 1.0s; }
.dangers-section     { animation-delay: 1.2s; }
.vei-section         { animation-delay: 1.4s; }
.benefits-section    { animation-delay: 1.6s; }
.surveillance-section{ animation-delay: 1.8s; }

@media (max-width: 720px) {
  .eruption-grid { grid-template-columns: 1fr 1fr; }
  .formation-visual { grid-template-columns: 1fr; }
  .surv-grid { grid-template-columns: 1fr; }
  .hero-bottom { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: clamp(4rem, 22vw, 9rem); }
  .danger-row { grid-template-columns: 8px 48px 1fr; }
  .danger-name { display: none; }
}
@media (max-width: 480px) {
  .eruption-grid { grid-template-columns: 1fr; }
  .hero-bottom { grid-template-columns: 1fr; }
}