/* ═══════════════════════════════════════════════════════════════
   PETRALYN INTELLIGENCE — style.css
   Dark premium, editorial, oil industry aesthetic
   ═══════════════════════════════════════════════════════════════ */

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

:root {
  --black:    #07080a;
  --dark:     #0d0f14;
  --card:     #111318;
  --card-alt: #161a22;
  --border:   #1e2430;
  --border-l: #2a3040;
  --gold:     #c9a84c;
  --gold-l:   #e8c96a;
  --amber:    #d4783a;
  --text:     #e8e4dc;
  --text-sub: #8a8f9e;
  --text-dim: #4a5060;
  --red:      #e05252;
  --green:    #52c47a;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;
  --max-w:   1200px;
  --nav-h:   72px;
  --radius:  4px;
  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ─── UTILITIES ───────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gold);
  color: var(--black);
  border-color: var(--gold);
}
.btn--primary:hover { background: var(--gold-l); border-color: var(--gold-l); }

.btn--outline {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
}
.btn--outline:hover { background: var(--gold); color: var(--black); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-l);
}
.btn--ghost:hover { border-color: var(--text-sub); }

.btn--full { width: 100%; justify-content: center; }

.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
}
.dot--live {
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(82, 196, 122, 0.2);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(82, 196, 122, 0.2); }
  50%       { box-shadow: 0 0 0 6px rgba(82, 196, 122, 0.05); }
}

/* ─── NAVIGATION ──────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}
.nav.scrolled {
  background: rgba(7, 8, 10, 0.92);
  border-color: var(--border);
  backdrop-filter: blur(16px);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  flex-shrink: 0;
}
.nav__logo-symbol {
  color: var(--gold);
  font-size: 1.4rem;
  line-height: 1;
}
.nav__logo-text {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  color: var(--text);
}
.nav__logo-sub {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-top: 0.1rem;
  align-self: flex-end;
  margin-bottom: 2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-sub);
  transition: color var(--transition);
}
.nav__link:hover { color: var(--text); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  background: none;
  border: 1px solid var(--border-l);
  border-radius: 2px;
  padding: 0.35rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-sub);
  cursor: pointer;
  transition: all var(--transition);
}
.lang-toggle:hover { border-color: var(--gold); color: var(--gold); }
.lang-toggle__sep { opacity: 0.3; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text);
  transition: all 0.3s;
}

/* ─── HERO ────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.25;
}

.hero__flare {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}
.hero__flare--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201, 168, 76, 0.12) 0%, transparent 70%);
  top: -100px; right: -150px;
}
.hero__flare--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(212, 120, 58, 0.08) 0%, transparent 70%);
  bottom: 50px; left: -100px;
}

.hero__ticker {
  position: absolute;
  top: var(--nav-h);
  left: 0; right: 0;
  overflow: hidden;
  background: rgba(201, 168, 76, 0.06);
  border-top: 1px solid rgba(201, 168, 76, 0.15);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
  padding: 0.45rem 0;
}
.hero__ticker-inner {
  display: flex;
  gap: 4rem;
  width: max-content;
  animation: ticker 30s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  white-space: nowrap;
}
.hero__ticker-inner span { flex-shrink: 0; }

@keyframes ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: 5rem;
  padding-bottom: 8rem;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s 0.1s both;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s 0.2s both;
}
.hero__title-line { display: block; }
.hero__title-line--accent {
  color: var(--gold);
  font-style: italic;
}

.hero__sub {
  max-width: 540px;
  font-size: 1.05rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s 0.3s both;
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
  animation: fadeUp 0.8s 0.4s both;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: fadeUp 0.8s 0.5s both;
}
.hero__stat { text-align: center; }
.hero__stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}
.hero__stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.3rem;
}
.hero__stat-sep {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.hero__scroll-line {
  width: 40px;
  height: 1px;
  background: var(--gold);
  animation: scrollPulse 2s ease infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 1; }
}

/* ─── SECTIONS ────────────────────────────────────────────────── */
.section { padding: 6rem 0; }

.section__header {
  text-align: center;
  margin-bottom: 4rem;
}
.section__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(201, 168, 76, 0.25);
  border-radius: 2px;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1rem;
}
.section__title em {
  font-style: italic;
  color: var(--gold);
}
.section__desc {
  max-width: 560px;
  margin: 0 auto;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ─── PLATFORM ────────────────────────────────────────────────── */
.platform { background: var(--dark); }

.platform__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: auto auto;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.platform__card {
  background: var(--card);
  padding: 2.5rem;
  transition: background var(--transition);
}
.platform__card:hover { background: var(--card-alt); }

.platform__card--large {
  grid-column: 1;
  grid-row: 1 / 3;
  border-right: 1px solid var(--border);
}
.platform__card--accent { background: rgba(201, 168, 76, 0.04); }

.platform__card-icon {
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 1.2rem;
  opacity: 0.8;
}
.platform__card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}
.platform__card p {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.platform__list { margin-top: 1rem; }
.platform__list li {
  font-size: 0.85rem;
  color: var(--text-sub);
  padding: 0.5rem 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.platform__list li::before {
  content: '▸';
  color: var(--gold);
  font-size: 0.7rem;
  flex-shrink: 0;
}

/* ─── SERVICES ────────────────────────────────────────────────── */
.services { background: var(--black); }

.services__list { max-width: 820px; margin: 0 auto; }

.service__item {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
.service__item:last-child { border-bottom: none; }
.service__item:hover .service__arrow { color: var(--gold); transform: translateX(4px); }

.service__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  padding-top: 0.4rem;
  flex-shrink: 0;
  width: 28px;
}
.service__body { flex: 1; }
.service__body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.service__body p {
  font-size: 0.875rem;
  color: var(--text-sub);
  line-height: 1.65;
}
.service__arrow {
  font-size: 1.2rem;
  color: var(--text-dim);
  transition: all var(--transition);
  padding-top: 0.25rem;
  flex-shrink: 0;
}

/* ─── INTELLIGENCE ────────────────────────────────────────────── */
.intelligence {
  background: var(--dark);
  position: relative;
  overflow: hidden;
}
.intelligence__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 400px at 50% 0%, rgba(201, 168, 76, 0.04) 0%, transparent 70%);
  pointer-events: none;
}
.section__header--light .section__title { color: var(--text); }

.engine__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 4rem;
  position: relative;
}

.engine__step {
  flex: 1;
  padding: 2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.engine__step:hover { border-color: rgba(201, 168, 76, 0.3); }

.engine__step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  flex-shrink: 0;
}
.engine__step-content h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.engine__step-content p {
  font-size: 0.82rem;
  color: var(--text-sub);
  line-height: 1.65;
}
.engine__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  font-size: 1.2rem;
  color: var(--gold);
  margin-top: 2.5rem;
  flex-shrink: 0;
}

.intelligence__quote {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  padding: 2.5rem;
  border: 1px solid rgba(201, 168, 76, 0.2);
  border-radius: var(--radius);
  background: rgba(201, 168, 76, 0.03);
}
.intelligence__quote blockquote {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 1rem;
}
.intelligence__quote cite {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ─── INVESTORS ───────────────────────────────────────────────── */
.investors { background: var(--black); }

.revenue__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 3rem;
}
.revenue__item {
  background: var(--card);
  padding: 2rem;
  transition: background var(--transition);
}
.revenue__item:hover { background: var(--card-alt); }
.revenue__icon {
  display: block;
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 0.8rem;
  opacity: 0.7;
}
.revenue__item h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.revenue__item p {
  font-size: 0.82rem;
  color: var(--text-sub);
  line-height: 1.6;
}

.cta-band {
  text-align: center;
  padding: 3rem;
  border: 1px solid rgba(201, 168, 76, 0.2);
  border-radius: var(--radius);
  background: rgba(201, 168, 76, 0.04);
}
.cta-band h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}
.cta-band p {
  color: var(--text-sub);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

/* ─── CONTACT ─────────────────────────────────────────────────── */
.contact { background: var(--dark); }

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}
.contact__info p {
  color: var(--text-sub);
  line-height: 1.7;
  font-size: 1rem;
  margin-bottom: 2rem;
}
.contact__details { display: flex; flex-direction: column; gap: 1.2rem; }
.contact__detail {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.contact__detail-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
}
.contact__detail a {
  color: var(--text-sub);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.contact__detail a:hover { color: var(--text); }

.contact__form-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
}
.form__group {
  margin-bottom: 1.25rem;
}
.form__group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 0.5rem;
}
.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  background: var(--dark);
  border: 1px solid var(--border-l);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
}
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus { border-color: var(--gold); }
.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--text-dim); }
.form__group textarea { resize: vertical; min-height: 100px; }
.form__group select option { background: var(--dark); }

.form__success {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
  letter-spacing: 0.05em;
  text-align: center;
}

/* ─── FOOTER ──────────────────────────────────────────────────── */
.footer {
  background: var(--black);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}
.footer__inner { display: flex; flex-direction: column; gap: 2rem; }
.footer__brand { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}
.footer__tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
}
.footer__links a {
  font-size: 0.82rem;
  color: var(--text-sub);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--text); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}
.footer__bottom a { color: var(--text-dim); transition: color var(--transition); }
.footer__bottom a:hover { color: var(--gold); }

/* ─── ANIMATIONS ──────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 960px) {
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--black);
    border-bottom: 1px solid var(--border);
    padding: 2rem;
    gap: 1.5rem;
    z-index: 99;
  }
  .nav__burger { display: flex; }
  .nav__cta { display: none; }

  .platform__grid {
    grid-template-columns: 1fr;
  }
  .platform__card--large {
    grid-column: 1;
    grid-row: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .engine__steps {
    flex-direction: column;
    gap: 0.5rem;
  }
  .engine__connector {
    transform: rotate(90deg);
    margin: 0;
    height: 1.5rem;
    padding: 0;
    align-self: flex-start;
    margin-left: 2rem;
  }

  .revenue__grid { grid-template-columns: repeat(2, 1fr); }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 600px) {
  .container { padding: 0 1.2rem; }
  .section { padding: 4rem 0; }
  .hero__stats { gap: 1.2rem; }
  .hero__stat-num { font-size: 1.5rem; }
  .revenue__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .hero__ctas { flex-direction: column; }
  .hero__ctas .btn { width: 100%; justify-content: center; }
}