/* ============================================================
   KNIGHTMARE INTERACTIVE — Global Styles
   style.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;900&family=Lato:wght@300;400;700&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:           #0a0908;
  --bg-elevated:  #111010;
  --bg-card:      #141210;
  --border:       rgba(255, 255, 255, 0.07);
  --border-gold:  rgba(180, 148, 80, 0.35);

  --text-primary:   #e8e0d0;
  --text-secondary: #9a9080;
  --text-muted:     #5a5248;

  --gold:         #b49450;
  --gold-light:   #d4b472;
  --gold-dim:     rgba(180, 148, 80, 0.15);
  --crimson:      #8b1a1a;
  --crimson-glow: rgba(139, 26, 26, 0.4);

  --font-display: 'Cinzel', 'Georgia', serif;
  --font-body:    'Lato', 'Helvetica Neue', sans-serif;

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

  --radius-sm: 2px;
  --radius-md: 4px;

  --transition: 0.25s ease;
  --transition-slow: 0.5s ease;

  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }

p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 65ch;
}

/* ── Layout Utilities ───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section--sm {
  padding: var(--spacing-lg) 0;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--spacing-sm);
}

.section-title {
  margin-bottom: var(--spacing-md);
}

/* ── Divider ────────────────────────────────────────────────── */
.divider {
  width: 48px;
  height: 1px;
  background: var(--gold);
  margin-bottom: var(--spacing-md);
  opacity: 0.6;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: var(--gold);
  color: var(--bg);
}

.btn-primary::before {
  background: var(--gold-light);
}

.btn-primary:hover {
  color: var(--bg);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(180, 148, 80, 0.25);
}

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

.btn-outline::before {
  background: var(--gold-dim);
}

.btn-outline:hover {
  color: var(--gold-light);
  border-color: var(--gold);
  transform: translateY(-1px);
}

.btn span {
  position: relative;
  z-index: 1;
}

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  transition: background var(--transition-slow), border-color var(--transition-slow);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(10, 9, 8, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}

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

.nav__logo {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: color var(--transition);
}

.nav__logo:hover {
  color: var(--gold);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav__links a {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--gold);
}

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

.nav__toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--text-primary);
  transition: all var(--transition);
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-md);
  align-items: start;
  margin-bottom: var(--spacing-md);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.footer__tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: none;
}

.footer__links {
  display: flex;
  gap: var(--spacing-md);
}

.footer__links a {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--gold);
}

.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-sm);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ── Grain Overlay ──────────────────────────────────────────── */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.028;
  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)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ── Animation ──────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Signup Block (shared) ──────────────────────────────────── */
.signup-section {
  position: relative;
}

.signup-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  padding: var(--spacing-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.signup-block--studio {
  border-color: var(--border-gold);
}

.signup-block__title {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  margin-bottom: var(--spacing-xs);
}

.signup-block__body {
  font-size: 0.9rem;
  max-width: none;
}

.signup-form__row {
  display: flex;
  gap: 0;
}

.signup-form__input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border-gold);
  border-right: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--transition);
  min-width: 0;
}

.signup-form__input::placeholder {
  color: var(--text-muted);
}

.signup-form__input:focus {
  border-color: var(--gold);
}

.signup-form__btn {
  border-radius: 0;
  white-space: nowrap;
  flex-shrink: 0;
}

.signup-form__disclaimer {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
  max-width: none;
  letter-spacing: 0.04em;
}

/* ── Utility ────────────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Mobile ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 5rem;
    --spacing-lg: 3rem;
  }

  .nav__links {
    display: none;
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    border-top: 1px solid var(--border);
  }

  .nav__links.open {
    display: flex;
  }

  .nav__links a {
    font-size: 1rem;
  }

  .nav__toggle {
    display: flex;
  }

  .footer__inner {
    grid-template-columns: 1fr;
  }

  .footer__links {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .signup-block {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
  }

  .signup-form__row {
    flex-direction: column;
  }

  .signup-form__input {
    border-right: 1px solid var(--border-gold);
    border-bottom: none;
  }

  .signup-form__btn {
    width: 100%;
    justify-content: center;
  }
}