/* ═══════════════════════════════════════════════════════════════════════
   McDonald's Nutrition Calculator — Main Stylesheet
   Design: Bold editorial / warm fast-food energy with modern precision
   ════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Nunito:wght@400;600;700;800;900&display=swap');

/* ── CSS Variables ──────────────────────────────────────────────────────── */
:root {
  --mcd-gold: #FFC72C;
  --mcd-red: #DA291C;
  --mcd-red-dark: #B71C1C;
  --mcd-dark: #1A1A1A;
  --bg: #F7F4EF;
  --bg2: #FFFFFF;
  --bg3: #F0EDE7;
  --surface: #FFFFFF;
  --surface2: #F7F4EF;
  --border: #E5DFD6;
  --text: #1A1A1A;
  --text2: #5A5248;
  --text3: #8A827A;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-body: 'Nunito', system-ui, sans-serif;
  --sidebar-w: 360px;
  --header-h: 68px;
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

[data-theme="dark"] {
  --bg: #111111;
  --bg2: #1A1A1A;
  --bg3: #232323;
  --surface: #1E1E1E;
  --surface2: #272727;
  --border: #333333;
  --text: #F5F0E8;
  --text2: #B0A99F;
  --text3: #706860;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}
img { max-width: 100%; display: block; }
a { color: var(--mcd-red); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4 { line-height: 1.2; }

/* ── Header ─────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--mcd-red);
  box-shadow: 0 2px 16px rgba(218,41,28,0.3);
  height: var(--header-h);
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-arch {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 1px;
  color: #FFF;
  text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.logo-text span { color: var(--mcd-gold); }

.header-nav {
  display: flex;
  gap: 4px;
  margin-left: 24px;
  flex: 1;
}

.nav-link {
  color: rgba(255,255,255,0.85);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all var(--transition);
  text-decoration: none;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.15); text-decoration: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

#themeToggle {
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 7px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: background var(--transition);
}
#themeToggle:hover { background: rgba(255,255,255,0.28); }

#cartToggle {
  position: relative;
  background: var(--mcd-gold);
  border: none;
  color: var(--mcd-dark);
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.88rem;
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: transform var(--transition), box-shadow var(--transition);
}
#cartToggle:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255,199,44,0.4); }

#cartBadge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--mcd-red);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 900;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--mcd-gold);
}

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--mcd-red) 0%, #B71C1C 50%, #8B0000 100%);
  color: #fff;
  padding: 64px 20px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='28'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  pointer-events: none;
}

.hero-arch {
  font-size: 5rem;
  margin-bottom: 12px;
  display: block;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.3));
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.hero h1 span { color: var(--mcd-gold); }

.hero-sub {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 560px;
  margin: 0 auto 28px;
  font-weight: 600;
}

.hero-badges {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
}

/* ── Fade-in animation ───────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeUp 0.5s ease both; }

/* ── Main layout ─────────────────────────────────────────────────────────── */
.main-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px 20px 60px;
  display: grid;
  grid-template-columns: 1fr var(--sidebar-w);
  gap: 28px;
  align-items: start;
}

/* ── Search ──────────────────────────────────────────────────────────────── */
.search-wrap {
  position: relative;
  margin-bottom: 20px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  pointer-events: none;
}

#searchInput {
  width: 100%;
  padding: 13px 16px 13px 44px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 30px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

#searchInput:focus {
  border-color: var(--mcd-gold);
  box-shadow: 0 0 0 3px rgba(255,199,44,0.2);
}

#searchInput::placeholder { color: var(--text3); }

/* ── Category nav ────────────────────────────────────────────────────────── */
#categoryNav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.cat-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--text2);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 14px;
  border-radius: 24px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.cat-btn:hover {
  border-color: var(--mcd-gold);
  color: var(--text);
  background: var(--bg3);
}

.cat-btn.active {
  background: var(--mcd-red);
  border-color: var(--mcd-red);
  color: #fff;
}

.cat-icon { font-size: 1rem; }
.cat-name { display: inline; }

/* ── Category title ──────────────────────────────────────────────────────── */
#categoryTitle {
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 16px;
}

/* ── Menu grid ───────────────────────────────────────────────────────────── */
#menuGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.menu-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all var(--transition);
  position: relative;
  cursor: default;
}

.menu-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--mcd-gold);
}

.menu-card.in-cart {
  border-color: var(--mcd-red);
  background: var(--surface2);
}

.card-emoji {
  font-size: 2rem;
  text-align: center;
  line-height: 1;
}

.card-body { flex: 1; }

.card-name {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.card-cal {
  font-size: 1.1rem;
  color: var(--mcd-red);
  margin-bottom: 4px;
}

.card-cal strong { font-weight: 900; font-size: 1.25rem; }

.card-macros {
  display: flex;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text3);
  font-weight: 600;
}

.add-btn {
  width: 100%;
  background: var(--mcd-gold);
  border: none;
  color: var(--mcd-dark);
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 9px;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition);
}

.add-btn:hover {
  background: #FFD54F;
  transform: scale(1.02);
}

.qty-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg3);
  border-radius: 10px;
  overflow: hidden;
}

.qty-btn {
  background: none;
  border: none;
  color: var(--mcd-red);
  font-size: 1.3rem;
  font-weight: 900;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.qty-btn:hover { background: var(--border); }

.qty-num {
  font-weight: 900;
  font-size: 1rem;
  color: var(--text);
  min-width: 28px;
  text-align: center;
}

.no-results {
  grid-column: 1/-1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text3);
}

/* ── Cart sidebar ────────────────────────────────────────────────────────── */
.cart-sidebar {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: sticky;
  top: calc(var(--header-h) + 20px);
  max-height: calc(100vh - var(--header-h) - 40px);
  display: flex;
  flex-direction: column;
}

.cart-header {
  background: var(--mcd-red);
  color: #fff;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 1px;
}

#cartEmpty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--text3);
  text-align: center;
}

.empty-icon { font-size: 3.5rem; }
.empty-text { font-weight: 700; font-size: 1rem; }

.cart-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cart-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.cart-item:last-child { border-bottom: none; }

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-item-cal {
  font-size: 0.8rem;
  color: var(--mcd-red);
  font-weight: 700;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.cart-item-controls .qty-btn {
  width: 28px;
  height: 28px;
  font-size: 1.1rem;
  border-radius: 6px;
  background: var(--bg3);
}

.cart-item-controls span {
  font-weight: 800;
  font-size: 0.9rem;
  min-width: 20px;
  text-align: center;
}

/* ── Cart totals ─────────────────────────────────────────────────────────── */
#cartTotals {
  border-top: 2px solid var(--border);
  padding: 16px;
  background: var(--surface2);
  max-height: 55vh;
  overflow-y: auto;
}

.totals-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.totals-header h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.5px;
}

.clear-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text3);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
}

.clear-btn:hover { border-color: var(--mcd-red); color: var(--mcd-red); }

.totals-cal {
  text-align: center;
  margin-bottom: 16px;
  background: var(--bg3);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.cal-big {
  display: block;
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--mcd-red);
  line-height: 1;
}

.cal-label {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.cal-bar-wrap {
  position: relative;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  margin-top: 10px;
  overflow: hidden;
}

.cal-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--mcd-gold), var(--mcd-red));
  border-radius: 4px;
  transition: width 0.4s ease;
}

.cal-pct {
  display: block;
  font-size: 0.75rem;
  color: var(--text3);
  font-weight: 600;
  margin-top: 4px;
}

.macro-grid { display: flex; flex-direction: column; gap: 6px; }

.macro-row {
  display: grid;
  grid-template-columns: 1fr auto 60px auto;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
}

.macro-label { color: var(--text2); font-weight: 600; }
.macro-value { font-weight: 800; text-align: right; white-space: nowrap; font-size: 0.82rem; }

.macro-bar-wrap {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.macro-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}

.macro-pct {
  font-size: 0.75rem;
  color: var(--text3);
  font-weight: 700;
  text-align: right;
  white-space: nowrap;
}

.macro-row.over-limit .macro-pct { color: var(--mcd-red); }
.macro-row.over-limit .macro-label { color: var(--mcd-red); }

.dv-note {
  font-size: 0.72rem;
  color: var(--text3);
  margin-top: 12px;
  text-align: center;
}

/* ── Summary sticky bar (mobile) ─────────────────────────────────────────── */
#summaryBar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--mcd-dark);
  color: #fff;
  padding: 10px 20px;
  z-index: 200;
  justify-content: space-around;
  align-items: center;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
}

.sb-item { text-align: center; }
.sb-val { display: block; font-weight: 900; font-size: 1rem; color: var(--mcd-gold); }
.sb-label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.7; }

/* ── Mobile overlay ──────────────────────────────────────────────────────── */
#cartOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 299;
}
#cartOverlay.active { display: block; }

/* ── Info section ────────────────────────────────────────────────────────── */
.info-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 60px 20px;
}

.info-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.info-card {
  background: var(--bg3);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
}

.info-icon { font-size: 2rem; margin-bottom: 10px; }
.info-card h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; }
.info-card p { color: var(--text2); font-size: 0.9rem; line-height: 1.6; }

/* ── Blog preview section ────────────────────────────────────────────────── */
.blog-section {
  background: var(--bg3);
  padding: 60px 20px;
  border-top: 1px solid var(--border);
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  letter-spacing: 1px;
  text-align: center;
  margin-bottom: 8px;
}

.section-sub {
  text-align: center;
  color: var(--text2);
  margin-bottom: 36px;
  font-size: 1rem;
}

.blog-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.blog-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.blog-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  background: linear-gradient(135deg, var(--mcd-red), #B71C1C);
}

.blog-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 8px; }

.blog-tag {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--mcd-red);
}

.blog-body h3 { font-size: 1.05rem; font-weight: 800; color: var(--text); line-height: 1.3; }
.blog-body p { font-size: 0.88rem; color: var(--text2); flex: 1; line-height: 1.5; }

.blog-read-more {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--mcd-red);
  margin-top: 4px;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
footer {
  background: var(--mcd-dark);
  color: rgba(255,255,255,0.7);
  padding: 40px 20px 28px;
  text-align: center;
  font-size: 0.85rem;
}

footer strong { color: var(--mcd-gold); }

.footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-links a { color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-links a:hover { color: var(--mcd-gold); text-decoration: none; }

/* ── Blog page styles ────────────────────────────────────────────────────── */
.blog-hero {
  background: linear-gradient(135deg, var(--mcd-red), #8B0000);
  color: #fff;
  padding: 60px 20px 50px;
  text-align: center;
}

.blog-hero .blog-tag { color: var(--mcd-gold); font-size: 0.85rem; margin-bottom: 10px; display: block; }
.blog-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); max-width: 720px; margin: 0 auto 14px; }
.blog-hero .meta { opacity: 0.8; font-size: 0.9rem; }

.blog-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

.blog-content h2 { font-size: 1.5rem; font-weight: 800; margin: 36px 0 12px; color: var(--text); }
.blog-content h3 { font-size: 1.15rem; font-weight: 800; margin: 24px 0 8px; }
.blog-content p { color: var(--text2); line-height: 1.8; margin-bottom: 14px; font-size: 0.98rem; }
.blog-content ul, .blog-content ol { padding-left: 24px; margin-bottom: 14px; color: var(--text2); line-height: 1.8; }
.blog-content li { margin-bottom: 6px; }

.callout {
  background: var(--bg3);
  border-left: 4px solid var(--mcd-gold);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  margin: 20px 0;
  font-weight: 700;
  color: var(--text);
}

.nutrition-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.nutrition-table th {
  background: var(--mcd-red);
  color: #fff;
  padding: 10px 14px;
  text-align: left;
  font-weight: 700;
}

.nutrition-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
}

.nutrition-table tr:nth-child(even) td { background: var(--bg3); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--mcd-red);
  font-weight: 800;
  margin-bottom: 32px;
  font-size: 0.95rem;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
  }

  .cart-sidebar {
    position: fixed;
    right: -100%;
    top: 0;
    bottom: 0;
    width: min(var(--sidebar-w), 100vw);
    max-height: 100vh;
    z-index: 300;
    border-radius: 0;
    border-left: 2px solid var(--border);
    transition: right 0.3s cubic-bezier(0.4,0,0.2,1);
  }

  .cart-sidebar.open { right: 0; }

  #summaryBar { display: flex; }
}

@media (max-width: 640px) {
  .header-nav { display: none; }
  .logo-text { font-size: 1.2rem; }
  #menuGrid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .cat-name { display: none; }
  .hero h1 { font-size: 2.4rem; }
  .hero-arch { font-size: 3.5rem; }
  .section-title { font-size: 1.8rem; }
}

@media (max-width: 400px) {
  #menuGrid { grid-template-columns: 1fr 1fr; }
}