/* ============================================================
   BURGUER HOUSE — CARDÁPIO DIGITAL
   styles.css — Design System & Components
   ============================================================ */

/* ── 1. CSS VARIABLES ─────────────────────────────────────── */
:root {
  --clr-bg:         #0f0e0d;
  --clr-surface:    #1a1917;
  --clr-surface-2:  #222120;
  --clr-surface-3:  #2c2b29;
  --clr-border:     rgba(255,255,255,0.07);
  --clr-accent:     #f97316;        /* orange fire */
  --clr-accent-2:   #fb923c;
  --clr-accent-glow:rgba(249,115,22,.25);
  --clr-text:       #f0ede8;
  --clr-text-muted: #8a857d;
  --clr-text-dim:   #5a5550;
  --clr-success:    #4ade80;
  --clr-white:      #ffffff;

  --ff-display:     'Playfair Display', Georgia, serif;
  --ff-body:        'DM Sans', system-ui, sans-serif;

  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-pill:999px;

  --shadow-card: 0 4px 24px rgba(0,0,0,.45);
  --shadow-pop:  0 12px 48px rgba(0,0,0,.65);

  --transition: all .22s cubic-bezier(.4,0,.2,1);
  --transition-slow: all .38s cubic-bezier(.4,0,.2,1);
}

/* ── 2. RESET & BASE ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--ff-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── 3. SCROLLBAR ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--clr-surface-3); border-radius: 10px; }

/* ── 4. NAVBAR ────────────────────────────────────────────── */
#mainNavbar {
  background: rgba(15,14,13,.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--clr-border);
  padding: 10px 0;
  z-index: 1000;
  transition: var(--transition);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--clr-accent), #ea580c);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 14px var(--clr-accent-glow);
}

.brand-name {
  font-family: var(--ff-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: -.01em;
  line-height: 1.1;
}

.brand-tagline {
  font-size: .65rem;
  font-weight: 300;
  color: var(--clr-text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .72rem;
  font-weight: 500;
  color: var(--clr-success);
  background: rgba(74,222,128,.1);
  border: 1px solid rgba(74,222,128,.2);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: .02em;
}

.status-dot {
  width: 7px; height: 7px;
  background: var(--clr-success);
  border-radius: 50%;
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0%,100% { box-shadow: 0 0 0 0 rgba(74,222,128,.5); }
  50%      { box-shadow: 0 0 0 5px rgba(74,222,128,0); }
}

/* ── 5. CART BUTTON (navbar) ─────────────────────────────── */
.cart-btn {
  position: relative;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  width: 42px; height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

.cart-btn:hover {
  background: var(--clr-surface-3);
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-1px);
}

.cart-badge {
  position: absolute;
  top: -6px; right: -6px;
  background: var(--clr-accent);
  color: #fff;
  font-size: .62rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--clr-bg);
  transform: scale(0);
  transition: transform .2s cubic-bezier(.34,1.56,.64,1);
}

.cart-badge.show { transform: scale(1); }

/* ── 6. HERO ──────────────────────────────────────────────── */
.hero-section {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(249,115,22,.18) 0%, transparent 70%),
    url('https://images.unsplash.com/photo-1568901346375-23c9450c58cd?w=1400&q=80') center/cover no-repeat;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15,14,13,.6) 0%,
    rgba(15,14,13,.85) 60%,
    rgba(15,14,13,1) 100%
  );
}

.hero-eyebrow {
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: .75rem;
}

.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 900;
  line-height: 1.05;
  color: var(--clr-white);
  margin-bottom: 1rem;
}

.hero-title em {
  font-style: normal;
  color: var(--clr-accent);
  text-shadow: 0 0 48px rgba(249,115,22,.45);
}

.hero-sub {
  color: var(--clr-text-muted);
  font-size: .95rem;
  max-width: 420px;
  margin: 0 auto 1.75rem;
}

.btn-hero {
  background: linear-gradient(135deg, var(--clr-accent), #ea580c);
  color: #fff;
  border: none;
  border-radius: var(--radius-pill);
  padding: .7rem 1.8rem;
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .02em;
  box-shadow: 0 8px 24px var(--clr-accent-glow);
  transition: var(--transition);
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(249,115,22,.4);
  color: #fff;
}

/* ── 7. CATEGORIES BAR ────────────────────────────────────── */
.categories-bar {
  background: rgba(15,14,13,.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
  padding: 10px 0;
  position: sticky;
  top: 62px;
  z-index: 99;
}

.categories-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 4px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.categories-scroll::-webkit-scrollbar { display: none; }

.cat-btn {
  flex-shrink: 0;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  border-radius: var(--radius-pill);
  padding: 6px 16px;
  font-family: var(--ff-body);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 5px;
}

.cat-btn:hover {
  background: var(--clr-surface-2);
  color: var(--clr-text);
  border-color: rgba(255,255,255,.15);
}

.cat-btn.active {
  background: linear-gradient(135deg, var(--clr-accent), #ea580c);
  border-color: var(--clr-accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--clr-accent-glow);
}

/* ── 8. SECTION HEADERS ───────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 2rem 0 1.2rem;
}

.section-icon {
  width: 36px; height: 36px;
  background: rgba(249,115,22,.12);
  border: 1px solid rgba(249,115,22,.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  font-size: 1rem;
}

.section-name {
  font-family: var(--ff-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-white);
  letter-spacing: -.01em;
}

.section-divider {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--clr-border), transparent);
}

/* ── 9. PRODUCT GRID ──────────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: .5rem;
}

@media (min-width: 576px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 992px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1280px) {
  .products-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ── 10. PRODUCT CARD ─────────────────────────────────────── */
.product-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-slow);
  position: relative;
  display: flex;
  flex-direction: column;
  animation: fadeUp .4s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(249,115,22,.25);
  box-shadow: 0 16px 48px rgba(0,0,0,.5), 0 0 0 1px rgba(249,115,22,.08);
}

.product-card.in-cart {
  border-color: rgba(249,115,22,.45);
  box-shadow: 0 0 0 1px rgba(249,115,22,.2), inset 0 0 24px rgba(249,115,22,.04);
}

.product-card.in-cart::after {
  content: '✓';
  position: absolute;
  top: 10px; left: 10px;
  width: 24px; height: 24px;
  background: var(--clr-accent);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.product-img-wrap {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: var(--clr-surface-2);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
}

.product-card:hover .product-img { transform: scale(1.06); }

.product-badge {
  position: absolute;
  top: 10px; right: 10px;
  background: linear-gradient(135deg, var(--clr-accent), #ea580c);
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.product-body {
  padding: 14px 16px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-name {
  font-family: var(--ff-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 4px;
  line-height: 1.3;
}

.product-desc {
  font-size: .8rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  flex: 1;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.product-price {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--clr-accent);
  font-variant-numeric: tabular-nums;
}

.btn-add {
  display: flex;
  align-items: center;
  gap: 5px;
  background: linear-gradient(135deg, var(--clr-accent), #ea580c);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--ff-body);
  font-size: .8rem;
  font-weight: 600;
  padding: 7px 14px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 12px var(--clr-accent-glow);
  white-space: nowrap;
}

.btn-add:hover {
  transform: translateY(-1px) scale(1.03);
  box-shadow: 0 8px 20px rgba(249,115,22,.4);
}

.btn-add:active { transform: scale(.97); }

.btn-add i { font-size: .85rem; }

/* ── 11. CART OVERLAY ─────────────────────────────────────── */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}

.cart-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ── 12. CART DRAWER ──────────────────────────────────────── */
.cart-drawer {
  position: fixed;
  top: 0; right: 0;
  width: min(420px, 100vw);
  height: 100dvh;
  background: var(--clr-surface);
  border-left: 1px solid var(--clr-border);
  z-index: 1200;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  box-shadow: -16px 0 64px rgba(0,0,0,.5);
}

.cart-drawer.open { transform: translateX(0); }

.cart-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--clr-border);
  flex-shrink: 0;
}

.cart-title {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-white);
  margin: 0;
}

.cart-subtitle {
  font-size: .78rem;
  color: var(--clr-text-muted);
  margin: 3px 0 0;
}

.cart-close {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: .9rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.cart-close:hover { background: var(--clr-surface-3); color: var(--clr-text); }

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
}

/* ── 13. CART EMPTY ───────────────────────────────────────── */
.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 220px;
  color: var(--clr-text-dim);
  text-align: center;
}

.cart-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: .4;
}

.cart-empty p { font-size: .9rem; margin: 0; }
.cart-empty small { font-size: .75rem; }

/* ── 14. CART ITEM ────────────────────────────────────────── */
.cart-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  animation: fadeUp .25s ease;
}

.cart-item-img {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

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

.cart-item-name {
  font-weight: 600;
  font-size: .85rem;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
}

.cart-item-price {
  font-size: .8rem;
  color: var(--clr-accent);
  font-weight: 600;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.qty-btn {
  background: var(--clr-surface-3);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  width: 28px; height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--ff-body);
}

.qty-btn:hover { background: var(--clr-accent); border-color: var(--clr-accent); }
.qty-btn.remove:hover { background: #ef4444; border-color: #ef4444; }

.qty-val {
  font-size: .85rem;
  font-weight: 700;
  color: var(--clr-text);
  min-width: 20px;
  text-align: center;
}

/* ── 15. CART FOOTER & TOTALS ─────────────────────────────── */
.cart-footer {
  padding: 16px 16px 20px;
  border-top: 1px solid var(--clr-border);
  flex-shrink: 0;
  background: var(--clr-surface);
}

.cart-totals {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 4px;
}

.totals-label { font-size: .8rem; color: var(--clr-text-muted); }
.totals-value { font-size: .85rem; color: var(--clr-text); font-weight: 500; }
.totals-total { font-size: .95rem; font-weight: 700; color: var(--clr-text); }
.text-accent   { color: var(--clr-accent) !important; }

.total-line {
  border-top: 1px solid var(--clr-border);
}

/* ── 16. CHECKOUT FORM ────────────────────────────────────── */
.form-section-title {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 10px;
  margin-top: 4px;
}

.form-field {
  width: 100%;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-family: var(--ff-body);
  font-size: .85rem;
  padding: 10px 14px;
  outline: none;
  transition: var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-field::placeholder { color: var(--clr-text-dim); }

.form-field:focus {
  border-color: rgba(249,115,22,.5);
  background: var(--clr-surface-3);
  box-shadow: 0 0 0 3px rgba(249,115,22,.1);
}

.form-field option { background: var(--clr-surface-2); }

.form-field.error { border-color: #ef4444 !important; box-shadow: 0 0 0 3px rgba(239,68,68,.15); }

/* ── 17. SEND ORDER BUTTON ───────────────────────────────── */
.btn-send-order {
  width: 100%;
  background: linear-gradient(135deg, #25d366, #128c7e);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-family: var(--ff-body);
  font-size: .9rem;
  font-weight: 700;
  padding: 13px;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: .02em;
  box-shadow: 0 6px 20px rgba(37,211,102,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-send-order:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37,211,102,.4);
}

.btn-send-order:active { transform: scale(.98); }

/* ── 18. FAB CART ─────────────────────────────────────────── */
.fab-cart {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: linear-gradient(135deg, var(--clr-accent), #ea580c);
  border: none;
  border-radius: var(--radius-pill);
  color: #fff;
  padding: 12px 22px;
  font-family: var(--ff-body);
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 900;
  display: flex !important;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 28px rgba(249,115,22,.45);
  transition: transform .35s cubic-bezier(.34,1.56,.64,1), box-shadow .22s ease;
}

.fab-cart.show {
  transform: translateX(-50%) translateY(0);
}

.fab-cart:hover {
  box-shadow: 0 12px 36px rgba(249,115,22,.55);
}

.fab-badge {
  background: rgba(255,255,255,.25);
  border-radius: var(--radius-pill);
  font-size: .75rem;
  padding: 1px 8px;
  font-weight: 700;
}

.fab-total { font-size: .85rem; font-weight: 700; }

/* ── 19. TOAST ────────────────────────────────────────────── */
.toast-custom {
  background: var(--clr-surface-2);
  border: 1px solid rgba(74,222,128,.25);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  color: var(--clr-text);
  font-size: .85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-pop);
  transform: translateY(20px);
  opacity: 0;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  pointer-events: none;
  white-space: nowrap;
}

.toast-custom.show {
  transform: translateY(0);
  opacity: 1;
}

/* ── 20. EMPTY STATE ──────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--clr-text-dim);
}

.empty-state-icon { font-size: 3rem; margin-bottom: 12px; opacity: .3; }
.empty-state p { font-size: .95rem; }

/* ── 21. FOOTER ───────────────────────────────────────────── */
footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 32px 20px;
  text-align: center;
  color: var(--clr-text-dim);
  font-size: .78rem;
  margin-top: 48px;
}

footer strong { color: var(--clr-text-muted); }

/* ── 22. UTILITIES ────────────────────────────────────────── */
.text-success { color: var(--clr-success) !important; }

/* ── 23. RESPONSIVE ADJUSTMENTS ──────────────────────────── */
@media (max-width: 575px) {
  .hero-section { min-height: 260px; }
  .product-img-wrap { height: 160px; }
  .cart-footer { padding: 12px 12px 16px; }
  .cart-body { padding: 10px 12px; }
  .cart-header { padding: 16px 14px 12px; }
}

@media (min-width: 768px) {
  .fab-cart { display: none !important; }
}

/* ── 24. CARD STAGGER ANIMATION ───────────────────────────── */
.product-card:nth-child(1)  { animation-delay: .04s; }
.product-card:nth-child(2)  { animation-delay: .08s; }
.product-card:nth-child(3)  { animation-delay: .12s; }
.product-card:nth-child(4)  { animation-delay: .16s; }
.product-card:nth-child(5)  { animation-delay: .20s; }
.product-card:nth-child(6)  { animation-delay: .24s; }