/* ===========================
   NIGREDO — Theme CSS
   Dark luxury alchemical brand
   =========================== */

/* --- Variables --- */
:root {
  --obsidian:    #07070b;
  --obsidian-2: #0e0e16;
  --obsidian-3: #14141f;
  --obsidian-4: #1c1c2a;
  --gold:        #d4af37;
  --gold-dim:   #a88a2a;
  --gold-pale:  #e8ce7a;
  --rhodium:    #c0c0cc;
  --silver:     #c8c8d0;
  --text:       #d8d0c4;
  --text-dim:   #8a8072;
  --text-muted: #5a5448;
  --border:     rgba(212,175,55,0.12);
  --border-med: rgba(212,175,55,0.25);

  --font-serif: 'Cormorant Garamond', 'Georgia', serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--obsidian);
  color: var(--text);
  font-family: var(--font-serif);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--obsidian); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 2px; }

/* Text selection */
::selection { background: rgba(212,175,55,0.2); color: var(--gold-pale); }

/* --- HERO --- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(212,175,55,0.04) 0%, transparent 70%),
    linear-gradient(180deg, var(--obsidian) 0%, var(--obsidian-2) 100%);
}

/* Noise grain overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.hero__geo {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: min(55vw, 580px);
  height: min(55vw, 580px);
  opacity: 0.7;
  pointer-events: none;
}

.hero__geo-svg {
  width: 100%;
  height: 100%;
  animation: geoRotate 120s linear infinite;
}

@keyframes geoRotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.6;
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(5rem, 15vw, 13rem);
  line-height: 0.88;
  letter-spacing: -0.01em;
  color: var(--gold);
  text-shadow:
    0 0 80px rgba(212,175,55,0.15),
    0 0 200px rgba(212,175,55,0.05);
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  max-width: 480px;
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero__meta-item {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__meta-sep {
  width: 1px;
  height: 12px;
  background: var(--border-med);
  display: inline-block;
}

.hero__corner-text {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-end;
}

.hero__corner-text span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  opacity: 0.3;
}

/* --- AXIOM --- */
.axiom {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  background: var(--obsidian);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.axiom__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto var(--space-sm);
}

.axiom__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
  opacity: 0.3;
  max-width: 200px;
}

.axiom__quote {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-dim);
  max-width: 600px;
  line-height: 1.5;
}

.axiom__attr {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.4;
  margin-top: var(--space-sm);
}

/* --- INGREDIENTS --- */
.ingredients {
  padding: var(--space-xl) var(--space-lg);
  background: var(--obsidian-2);
}

.ingredients__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.ingredients__heading {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  color: var(--text);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.ingredients__subheading {
  font-size: 1rem;
  color: var(--text-dim);
  font-weight: 300;
  line-height: 1.7;
  max-width: 500px;
  margin: 0 auto;
}

.ingredients__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  max-width: 1200px;
  margin: 0 auto;
}

.ingredient-card {
  background: var(--obsidian-3);
  padding: var(--space-lg) var(--space-md);
  position: relative;
  transition: background 0.4s ease;
}

.ingredient-card:hover {
  background: var(--obsidian-4);
}

.ingredient-card__symbol {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.ingredient-card--silver .ingredient-card__symbol { color: var(--silver); }
.ingredient-card--gold   .ingredient-card__symbol { color: var(--gold); }
.ingredient-card--rhodium .ingredient-card__symbol { color: var(--rhodium); }

.ingredient-card__number {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.ingredient-card__name {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.ingredient-card__label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.ingredient-card__divider {
  height: 1px;
  width: 40px;
  margin-bottom: var(--space-md);
}

.ingredient-card--silver .ingredient-card__divider { background: linear-gradient(90deg, var(--silver), transparent); }
.ingredient-card--gold   .ingredient-card__divider { background: linear-gradient(90deg, var(--gold), transparent); }
.ingredient-card--rhodium .ingredient-card__divider { background: linear-gradient(90deg, var(--rhodium), transparent); }

.ingredient-card__desc {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}

.ingredient-card__specs {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.ingredient-card__specs span {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --- MANIFESTO --- */
.manifesto {
  padding: var(--space-xl) var(--space-lg);
  background: var(--obsidian);
  position: relative;
  overflow: hidden;
}

.manifesto::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.15;
}

.manifesto__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.manifesto__title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--gold-pale);
  margin-bottom: var(--space-lg);
}

.manifesto__body p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text-dim);
  margin-bottom: var(--space-md);
}

.manifesto__body p:last-child { margin-bottom: 0; }

.manifesto__triangle {
  width: 120px;
  margin: var(--space-xl) auto 0;
}

.manifesto__triangle svg { width: 100%; }

/* --- PHILOSOPHY --- */
.philosophy {
  padding: var(--space-xl) var(--space-lg);
  background: var(--obsidian-2);
  border-top: 1px solid var(--border);
}

.philosophy__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  max-width: 1100px;
  margin: 0 auto;
}

.philosophy__block {
  padding: var(--space-md);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.01);
  position: relative;
}

.philosophy__block::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.philosophy__block:hover::before { opacity: 0.3; }

.philosophy__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.5;
  margin-bottom: var(--space-sm);
}

.philosophy__heading {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.philosophy__text {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-dim);
}

/* --- CLOSING --- */
.closing {
  padding: var(--space-xl) var(--space-lg);
  background: var(--obsidian);
  text-align: center;
  border-top: 1px solid var(--border);
}

.closing__inner {
  max-width: 800px;
  margin: 0 auto;
}

.closing__title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--text);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-xl);
}

.closing__glyph {
  width: 100px;
  margin: 0 auto;
  animation: geoRotate 90s linear infinite;
}

.closing__glyph svg { width: 100%; }

/* --- FOOTER --- */
.footer {
  padding: var(--space-lg) var(--space-lg);
  background: var(--obsidian-3);
  border-top: 1px solid var(--border);
}

.footer__inner {
  max-width: 800px;
  margin: 0 auto;
}

.footer__brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.footer__name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.footer__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer__meta { display: flex; flex-direction: column; gap: 0.6rem; }

.footer__disclaimer,
.footer__compliance {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.05em;
  line-height: 1.7;
  color: var(--text-muted);
  opacity: 0.6;
}

.footer__copy {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  opacity: 0.4;
  margin-top: var(--space-sm);
}

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .ingredients__grid { grid-template-columns: 1fr; }
  .philosophy__grid { grid-template-columns: 1fr; }
  .hero { padding-top: 6rem; }
  .hero__geo { width: 80vw; right: -10%; top: 15%; transform: none; }
}

@media (max-width: 600px) {
  .hero { padding: 5rem 1.5rem 4rem; }
  .hero__title { font-size: clamp(4rem, 20vw, 6rem); }
  .ingredients, .manifesto, .philosophy, .closing, .axiom { padding: 5rem 1.5rem; }
  .axiom__inner { flex-direction: column; gap: var(--space-sm); }
  .axiom__line { max-width: 80px; }
  .footer { padding: 3rem 1.5rem; }
  .footer__brand { flex-direction: column; gap: 0.5rem; }
}