/* ============================================================
   Saga of Polarity — Shared Styles
   ============================================================ */

:root {
  /* Core backgrounds */
  --bg:           #050505;
  --bg-2:         #0c0c0e;
  --bg-3:         #141416;
  --bg-card:      #0f0f11;

  /* Spectrum brand colors (battery gradient: - to +) */
  --teal:         #1a7a70;
  --green:        #3d6b28;
  --gold:         #c8a020;
  --electric:     #f0cc00;       /* bright electric yellow — center of the spectrum */
  --orange:       #c85828;
  --red:          #8a1a10;

  /* Derived/utility */
  --warm:         #c85828;       /* positive pole */
  --cool:         #1a7a70;       /* negative pole */
  --silver:       #a8a4a0;       /* +/- metal text */
  --silver-dim:   #605c58;

  /* Spectrum gradient (electric yellow at center) */
  --spectrum: linear-gradient(90deg, #1a7a70 0%, #3d6b28 25%, #f0cc00 50%, #c85828 75%, #8a1a10 100%);
  --spectrum-rev: linear-gradient(90deg, #8a1a10 0%, #c85828 25%, #f0cc00 50%, #3d6b28 75%, #1a7a70 100%);
  --electric-glow: rgba(240, 204, 0, 0.18);
  --electric-dim:  rgba(240, 204, 0, 0.08);

  /* Glow utilities */
  --warm-glow:    rgba(200, 88, 40, 0.15);
  --cool-glow:    rgba(26, 122, 112, 0.15);
  --gold-glow:    rgba(200, 160, 32, 0.12);

  /* Text */
  --white:        #f0ece8;
  --text:         #d8d0c8;
  --text-dim:     #908880;
  --text-muted:   #504840;

  /* Borders */
  --border:       #1e1c1a;
  --border-light: #302c28;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--silver); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--white); }

img { max-width: 100%; display: block; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', 'Georgia', serif;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.section-label {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--electric);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-family: 'Cormorant Garamond', 'Georgia', serif;
  color: var(--white);
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--text-dim);
  font-size: 1rem;
  max-width: 540px;
  line-height: 1.7;
}

/* Spectrum text effect */
.spectrum-text {
  background: var(--spectrum);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Layout ---- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section { padding: 5rem 0; }

/* ---- Navigation ---- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

nav.scrolled { background: rgba(5, 5, 5, 0.97); }

/* Spectrum bar under nav */
nav::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0; right: 0;
  height: 1px;
  background: var(--spectrum);
  opacity: 0;
  transition: opacity 0.4s;
}

nav.scrolled::after { opacity: 0.4; }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.nav-logo img {
  height: 36px;
  width: 36px;
  object-fit: cover;
  mix-blend-mode: screen;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-logo-tagline {
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-top: 2px;
}

.nav-logo .poles {
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--silver-dim);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--white); }

.nav-cta {
  font-size: 0.75rem !important;
  letter-spacing: 0.1em !important;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--silver-dim);
  color: var(--silver) !important;
  border-radius: 2rem;
  transition: border-color 0.2s, color 0.2s !important;
}

.nav-cta:hover {
  border-color: var(--warm);
  color: var(--white) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-muted);
  transition: all 0.3s;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 3px;
  transition: all 0.25s;
  cursor: pointer;
  border: none;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: var(--warm);
  color: var(--white);
  border: 1px solid var(--warm);
}

.btn-primary:hover {
  background: #d96630;
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(200, 88, 40, 0.3);
}

.btn-cool {
  background: var(--cool);
  color: var(--white);
  border: 1px solid var(--cool);
}

.btn-cool:hover {
  background: #208a80;
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(26, 122, 112, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--silver-dim);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-gold {
  background: var(--gold);
  color: #1a0e00;
  font-weight: 600;
  border: 1px solid var(--gold);
}

.btn-gold:hover {
  background: #d8b030;
  color: #1a0e00;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(200, 160, 32, 0.25);
}

/* Spectrum border button */
.btn-spectrum {
  background: transparent;
  color: var(--white);
  border: 1px solid transparent;
  background-clip: padding-box;
  position: relative;
}

.btn-spectrum::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 4px;
  background: var(--spectrum);
  z-index: -1;
}

/* ---- Pole badges ---- */
.pole-neg {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--cool);
  border: 1px solid rgba(26, 122, 112, 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: 2rem;
  background: rgba(26, 122, 112, 0.08);
}

.pole-pos {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--warm);
  border: 1px solid rgba(200, 88, 40, 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: 2rem;
  background: rgba(200, 88, 40, 0.08);
}

/* ---- Divider ---- */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }

.spectrum-divider {
  border: none;
  height: 1px;
  background: var(--spectrum);
  opacity: 0.35;
  margin: 0;
}

/* ---- Footer ---- */
footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 260px;
  margin-top: 1rem;
}

.footer-col h4 {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-bottom: 1rem;
  font-family: 'Inter', sans-serif;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.04em; }

/* ---- Legal Pages ---- */
.legal-hero {
  padding: 9rem 0 4rem;
  border-bottom: 1px solid var(--border);
}

.legal-body {
  padding: 3rem 0 5rem;
  max-width: 720px;
}

.legal-body h2 {
  font-size: 1.4rem;
  margin: 2.5rem 0 0.75rem;
  color: var(--electric);
}

.legal-body h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--white);
}

.legal-body p {
  color: var(--text-dim);
  margin-bottom: 1rem;
  line-height: 1.75;
}

.legal-body ul {
  margin: 0.5rem 0 1rem 1.5rem;
  color: var(--text-dim);
  line-height: 1.75;
}

.legal-body ul li { margin-bottom: 0.35rem; }

.legal-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 2rem;
  display: block;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 640px) {
  section { padding: 3.5rem 0; }

  .nav-links { display: none; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px;
    left: 0; right: 0;
    background: rgba(5, 5, 5, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem;
    gap: 1.2rem;
    align-items: flex-start;
  }

  .nav-toggle { display: flex; }

  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  .footer-bottom { flex-direction: column; align-items: flex-start; }
}