/**
 * Lost in Burg — Brand System
 * Tokens · Typography · Buttons · Logo · Nav · Footer · Primitives
 */

/* ─── 1. DESIGN TOKENS ─── */
:root {
  --cream: #FEF5ED;
  --warm-gray: #F5EDE3;
  --orange: #FF5722;
  --orange-dark: #E64A19;
  --charcoal: #1A1A1A;
  --ink: #080808;
  --surface-dark: #0d0d0d;
  --surface-card: #111111;

  --font-display: 'Anton', sans-serif;
  --font-ui: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;

  --brand-name: 'Lost in Burg';
  --brand-line: "The Craver's Loop";
  --brand-location: 'Kozhikode Beach, Kerala';
  --brand-hours: '4:30 PM – 3:00 AM';
  --brand-ig: '@lostinburg_';
  --brand-ig-url: 'https://www.instagram.com/lostinburg_/';
  --brand-est: '2023';

  --nav-h: 80px;
  --ease-wipe: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ─── 2. BASE ─── */
html { overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

body.theme-dark {
  background: var(--surface-dark);
  color: var(--cream);
}

/* ─── 3. TYPOGRAPHY SYSTEM ─── */
.font-anton  { font-family: var(--font-display) !important; }
.font-oswald { font-family: var(--font-ui) !important; }
.font-inter  { font-family: var(--font-body) !important; }

.section-label {
  font-family: var(--font-ui);
  letter-spacing: 0.24em;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.type-display {
  font-family: var(--font-display);
  text-transform: uppercase;
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.type-ui {
  font-family: var(--font-ui);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.brand-line {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--orange);
}

/* ─── 4. PRIMITIVES ─── */
.rough-border { border: 3px solid var(--charcoal); }

/* ─── 5. LOGO SYSTEM ─── */
.logo-wordmark {
  display: block;
  height: 58px;
  width: auto;
  max-width: 280px;
  object-fit: contain;
  /* Tight-cropped orange script on transparent */
  transition: opacity 0.35s ease, filter 0.35s ease;
}
@media (min-width: 768px) {
  .logo-wordmark { height: 72px; max-width: 340px; }
}

.logo-mark {
  display: block;
  height: 64px;
  width: auto;
  transition: filter 0.35s ease;
}
.logo-mark--invert { filter: invert(1); }
.logo-mark--footer {
  display: block;
  height: 140px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  /* Black line art on transparent → invert to cream on charcoal footer */
  filter: invert(1);
}
@media (min-width: 768px) {
  .logo-mark--footer { height: 180px; max-width: 240px; }
}

/* Nav variants — orange wordmark stays as-is on all surfaces */
.site-nav--hero .logo-wordmark,
.site-nav--dark .logo-wordmark,
.site-nav--solid .logo-wordmark,
.site-nav--hero.is-scrolled .logo-wordmark { filter: none; }

.logo-lockup {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}
.logo-lockup__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  color: var(--cream);
  line-height: 1;
}
.logo-lockup__meta {
  font-family: var(--font-ui);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  color: rgba(254, 245, 237, 0.4);
  margin-top: 2px;
  text-transform: uppercase;
}

/* ─── 6. BUTTON SYSTEM ─── */
.btn-p,
.btn-primary,
.btn-o,
.btn-outline,
.btn-outline-light,
.btn-hp,
.btn-hg {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-ui);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.875rem;
  padding: 0.9rem 2.2rem;
  overflow: hidden;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: color 0.3s, border-color 0.3s;
}

.btn-p::before,
.btn-primary::before,
.btn-o::before,
.btn-outline::before,
.btn-outline-light::before,
.btn-hp::before,
.btn-hg::before {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-101%);
  transition: transform 0.4s var(--ease-wipe);
}

.btn-p:hover::before,
.btn-primary:hover::before,
.btn-o:hover::before,
.btn-outline:hover::before,
.btn-outline-light:hover::before,
.btn-hp:hover::before,
.btn-hg:hover::before {
  transform: translateX(0);
}

.btn-p .bi,
.btn-p .btn-inner,
.btn-primary .bi,
.btn-primary .btn-inner,
.btn-o .bi,
.btn-o .btn-inner,
.btn-outline .bi,
.btn-outline .btn-inner,
.btn-outline-light .bi,
.btn-outline-light .btn-inner,
.btn-hp .bhi,
.btn-hp .bi,
.btn-hp .btn-inner,
.btn-hg .bhi,
.btn-hg .bi,
.btn-hg .btn-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* Primary fill — orange */
.btn-p,
.btn-primary {
  background: var(--orange);
  color: var(--cream);
}
.btn-p::before,
.btn-primary::before {
  background: var(--charcoal);
}

/* Outline — charcoal */
.btn-o,
.btn-outline {
  background: transparent;
  border: 2px solid var(--charcoal);
  color: var(--charcoal);
  padding: calc(0.9rem - 2px) calc(2.2rem - 2px);
}
.btn-o::before,
.btn-outline::before {
  background: var(--charcoal);
}
.btn-o:hover,
.btn-outline:hover {
  color: var(--cream);
}

/* Outline light — for dark surfaces */
.btn-outline-light,
.btn-o-light {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  padding: calc(0.9rem - 2px) calc(2.2rem - 2px);
}
.btn-outline-light::before,
.btn-o-light::before {
  background: var(--orange);
}
.btn-outline-light:hover,
.btn-o-light:hover {
  border-color: var(--orange);
  color: var(--cream);
}

/* Hero primary — cream wipe */
.btn-hp {
  background: var(--orange);
  color: var(--cream);
}
.btn-hp::before { background: var(--cream); }
.btn-hp:hover { color: var(--charcoal); }

/* Hero ghost */
.btn-hg {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.72);
  padding: calc(0.9rem - 1.5px) calc(2.2rem - 1.5px);
}
.btn-hg::before { background: var(--orange); }
.btn-hg:hover {
  color: var(--cream);
  border-color: var(--orange);
}

.btn-p--sm,
.btn-primary--sm {
  font-size: 0.75rem;
  padding: 0.65rem 1.5rem;
}

/* ─── 7. NAVIGATION ─── */
#mainNav,
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background 0.45s ease, border-color 0.45s ease, backdrop-filter 0.45s ease;
}

.site-nav__inner {
  max-width: 1536px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (min-width: 768px) {
  .site-nav__inner { padding: 0 3rem; }
}

.site-nav__links {
  display: none;
  align-items: center;
  gap: 2.25rem;
}
.site-nav__actions {
  display: none;
  align-items: center;
  gap: 1rem;
}
@media (min-width: 768px) {
  .site-nav__links,
  .site-nav__actions { display: flex; }
}

.site-nav__link {
  position: relative;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.3s;
}
.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width 0.3s ease;
}
.site-nav__link:hover::after,
.site-nav__link.is-active::after { width: 100%; }
.site-nav__link.is-active { color: var(--orange); }

.site-nav__hours {
  font-family: var(--font-ui);
  letter-spacing: 0.24em;
  font-size: 0.7rem;
  text-transform: uppercase;
  transition: color 0.35s;
}

.site-nav__ham {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}
@media (min-width: 768px) {
  .site-nav__ham { display: none; }
}
.site-nav__ham-bar {
  display: block;
  width: 1.5rem;
  height: 2px;
  transition: background 0.35s;
}
.site-nav__ham-bar:last-child { width: 1rem; }

.site-nav__mobile {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--charcoal);
  border-top: 2px solid var(--orange);
}
.site-nav__mobile.is-open { display: flex; }
.site-nav__mobile a {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cream);
  text-decoration: none;
  transition: color 0.3s;
}
.site-nav__mobile a:hover,
.site-nav__mobile a.is-active { color: var(--orange); }
.site-nav__mobile-hours {
  border-top: 1px solid rgba(255, 87, 34, 0.3);
  padding-top: 1rem;
}

/* Variant: solid cream (interior pages) */
.site-nav--solid {
  background: var(--cream);
  border-bottom: 2px solid var(--charcoal);
}
.site-nav--solid .site-nav__link { color: var(--charcoal); }
.site-nav--solid .site-nav__link:hover { color: var(--orange); }
.site-nav--solid .site-nav__hours { color: rgba(26, 26, 26, 0.55); }
.site-nav--solid .site-nav__ham-bar { background: var(--charcoal); }
.site-nav--solid .logo-mark { filter: none; }
.site-nav__logo { display: flex; align-items: center; }

/* Variant: hero transparent (homepage) */
.site-nav--hero {
  background: transparent;
  border-bottom: 1px solid transparent;
}
.site-nav--hero .site-nav__link { color: rgba(255, 255, 255, 0.75); }
.site-nav--hero .site-nav__link:hover { color: var(--orange); }
.site-nav--hero .site-nav__hours { color: rgba(255, 255, 255, 0.35); }
.site-nav--hero .site-nav__ham-bar { background: #fff; }
.site-nav--hero .logo-mark { filter: invert(1); }
.site-nav--hero .logo-wordmark { filter: none; }

.site-nav--hero.is-scrolled {
  background: rgba(254, 245, 237, 0.97) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--charcoal) !important;
}
.site-nav--hero.is-scrolled .site-nav__link { color: var(--charcoal) !important; }
.site-nav--hero.is-scrolled .site-nav__link:hover { color: var(--orange) !important; }
.site-nav--hero.is-scrolled .site-nav__hours { color: rgba(26, 26, 26, 0.5) !important; }
.site-nav--hero.is-scrolled .site-nav__ham-bar { background: var(--charcoal) !important; }
.site-nav--hero.is-scrolled .logo-mark { filter: none; }
.site-nav--hero.is-scrolled .logo-wordmark { filter: none; }

/* Variant: dark (menu) */
.site-nav--dark {
  background: rgba(13, 13, 13, 0.92);
  border-bottom: 1px solid rgba(255, 87, 34, 0.15);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.site-nav--dark .site-nav__link { color: var(--cream); }
.site-nav--dark .site-nav__link:hover { color: var(--orange); }
.site-nav--dark .site-nav__hours { color: rgba(254, 245, 237, 0.4); }
.site-nav--dark .site-nav__ham-bar { background: var(--cream); }
.site-nav--dark .logo-mark { filter: invert(1); }
.site-nav--dark .logo-wordmark { filter: none; }
.site-nav--dark.is-scrolled {
  background: rgba(13, 13, 13, 0.97);
  border-bottom-color: rgba(255, 87, 34, 0.18);
}

/* Legacy nav-link underline support on pages that still use it */
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* Legacy mobile menu class */
.mobile-menu { display: none; }
.mobile-menu.open { display: flex; }

/* ─── 8. FOOTER ─── */
.site-footer {
  background: var(--charcoal);
  color: var(--cream);
  padding: 5.5rem 0 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.site-footer__brand .logo-mark--footer {
  margin-bottom: 0.25rem;
}
.site-footer--dark {
  background: var(--ink);
  border-top: 1px solid rgba(255, 87, 34, 0.12);
}
.site-footer__inner {
  max-width: 1536px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .site-footer__inner { padding: 0 4rem; }
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: repeat(3, 1fr); gap: 3rem; }
}

.site-footer__brand-line {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 0.75rem;
}
.site-footer__blurb {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.45);
  margin: 0 0 1.25rem;
}
.site-footer__heading {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 1.25rem;
}
.site-footer__nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.site-footer__nav a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: color 0.3s;
}
.site-footer__nav a:hover { color: var(--orange); }

.site-footer__meta {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.site-footer__meta-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.45);
}
.site-footer__meta-row svg {
  width: 1rem;
  height: 1rem;
  color: var(--orange);
  flex-shrink: 0;
  margin-top: 0.15rem;
}
.site-footer__meta-row strong { color: var(--cream); font-weight: 600; }

.site-footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: border-color 0.3s, color 0.3s;
}
.site-footer__social:hover {
  border-color: var(--orange);
  color: var(--orange);
}
.site-footer__social svg { width: 1rem; height: 1rem; fill: currentColor; }

.site-footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
@media (min-width: 768px) {
  .site-footer__bottom { flex-direction: row; }
}
.site-footer__bottom p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.25);
}