/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
    /* Color Palette */
    --primary-dark: #120318;
    --primary-deep: #1e0728;
    --primary-purple: #3f0951;
    --primary-light: #5d0f77;
    --primary-vibrant: #881baf;
    --accent-gold: #e8a007;
    --accent-gold-hover: #ffb81c;
    --accent-green: #25d366; /* WhatsApp Green */
    --accent-green-dark: #128c7e;
    
    --bg-dark: #0f0314;
    --bg-card: rgba(30, 7, 40, 0.65);
    --bg-card-hover: rgba(45, 11, 61, 0.85);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-active: rgba(232, 160, 7, 0.4);
    
    --text-main: #f3eff5;
    --text-muted: #bdaec6;
    --text-white: #ffffff;
    
    /* Layout & Shadows */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Fonts & Transitions */
    --font-headings: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 10% 20%, rgba(93, 15, 119, 0.15) 0px, transparent 50%),
        radial-gradient(at 90% 80%, rgba(232, 160, 7, 0.05) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(30, 7, 40, 0.5) 0px, transparent 100%);
    background-attachment: fixed;
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 50%;
    left: 50%;
    width: 80vw;
    height: 80vh;
    max-width: 900px;
    max-height: 900px;
    transform: translate(-50%, -50%);
    background-image: url('assets/acai-1.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.035;
    pointer-events: none;
    z-index: -1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--text-white);
    font-weight: 700;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

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

/* Utility Classes */
.text-center { text-align: center; }
.hidden { display: none !important; }
.flex-1 { flex: 1; }
.flex-3 { flex: 3; }

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--primary-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--primary-purple);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* ==========================================================================
   TOP BAR & HEADER
   ========================================================================== */
.top-bar {
    background-color: var(--primary-dark);
    border-bottom: 1px solid var(--border-glass);
    padding: 8px 0;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 50px;
    background: rgba(37, 211, 102, 0.1);
    color: var(--accent-green);
    font-weight: 600;
}
.icon-sm {
    width: 14px;
    height: 14px;
}
.delivery-notice {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.header {
    background: rgba(18, 3, 24, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
    transition: var(--transition-fast);
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-family: var(--font-headings);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-white);
}
.logo-accent {
    color: var(--accent-gold);
    background: linear-gradient(135deg, var(--accent-gold) 0%, #ffdf7a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-desktop {
    display: flex;
    gap: 32px;
}
.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition-fast);
    position: relative;
    padding: 8px 0;
}
.nav-link:hover, .nav-link.active {
    color: var(--text-white);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: var(--transition-smooth);
}
.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.cart-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-purple) 100%);
    border: 1px solid var(--border-glass);
    padding: 10px 18px;
    border-radius: 50px;
    color: var(--text-white);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    position: relative;
}
.cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(255, 255, 255, 0.2);
}
.cart-badge {
    background: var(--accent-gold);
    color: var(--primary-dark);
    font-size: 0.75rem;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    position: absolute;
    top: -4px;
    right: -4px;
    border: 2px solid var(--primary-dark);
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% { box-shadow: 0 0 0 0 rgba(232, 160, 7, 0.7); }
    70% { box-shadow: 0 0 0 8px rgba(232, 160, 7, 0); }
    100% { box-shadow: 0 0 0 0 rgba(232, 160, 7, 0); }
}

/* ==========================================================================
   HERO BANNER
   ========================================================================== */
.hero {
    position: relative;
    padding: 100px 0 120px;
    background-image: url('assets/acai-1.png');
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid var(--border-glass);
    margin-bottom: 50px;
}
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(18, 3, 24, 0.95) 30%, rgba(30, 7, 40, 0.7) 100%);
}
.hero-container {
    position: relative;
    z-index: 2;
}
.hero-content {
    max-width: 650px;
}
.hero-tagline {
    font-family: var(--font-headings);
    color: var(--accent-gold);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
    display: inline-block;
}
.hero h1 {
    font-size: 3rem;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}
.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}
.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
    white-space: nowrap;
}
.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}
.btn-block {
    display: flex;
    width: 100%;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #ffbe25 100%);
    color: var(--primary-dark);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-gold-hover) 0%, #ffd05a 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(232, 160, 7, 0.3);
}
.btn-outline {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--border-glass);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}
.btn-success {
    background: linear-gradient(135deg, var(--accent-green) 0%, #1ebe5d 100%);
    color: var(--text-white);
}
.btn-success:hover {
    background: linear-gradient(135deg, #2cf478 0%, #22ce67 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}
.btn-text {
    background: transparent;
    color: var(--text-muted);
}
.btn-text:hover {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.05);
}
.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ==========================================================================
   CATEGORY TABS BAR
   ========================================================================== */
.categories-bar {
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.section-title {
    font-size: 2rem;
    position: relative;
    display: inline-block;
}
.category-tabs {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 8px;
}
.category-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    transition: var(--transition-smooth);
}
.category-tab:hover {
    background: var(--bg-card-hover);
    color: var(--text-white);
    border-color: rgba(255, 255, 255, 0.15);
}
.category-tab.active {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-purple) 100%);
    color: var(--text-white);
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-sm);
}

/* Tab contents conditional display */
.menu-tab-content {
    display: none;
}
.menu-tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   WIZARD BUILDER (MONTE SEU AÇAÍ)
   ========================================================================== */
.builder-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
    backdrop-filter: blur(12px);
    overflow: hidden;
}
.builder-header {
    padding: 30px;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.builder-badge {
    background: rgba(232, 160, 7, 0.15);
    color: var(--accent-gold);
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    display: inline-block;
}
.builder-title-info h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
}
.builder-title-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.builder-steps-indicator {
    background: var(--primary-purple);
    border: 1px solid var(--border-glass);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}
.progress-bar-container {
    height: 6px;
    background: var(--primary-dark);
    width: 100%;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-vibrant), var(--accent-gold));
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.builder-body {
    padding: 30px;
    min-height: 380px;
}
.builder-step {
    display: none;
}
.builder-step.active {
    display: block;
    animation: slideIn 0.3s ease-out;
}
@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

.step-title {
    font-size: 1.25rem;
    margin-bottom: 4px;
}
.step-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

/* STEP 1: Sizes Grid */
.grid-sizes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.size-card {
    background: rgba(18, 3, 24, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.size-card:hover {
    background: rgba(18, 3, 24, 0.7);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}
.size-card.active {
    border-color: var(--accent-gold);
    background: rgba(232, 160, 7, 0.05);
    box-shadow: 0 0 20px rgba(232, 160, 7, 0.15);
}
.size-card-image {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    margin-bottom: 16px;
    border: 3px solid var(--primary-purple);
    object-fit: cover;
    box-shadow: var(--shadow-md);
}
.size-card.active .size-card-image {
    border-color: var(--accent-gold);
}
.size-name {
    font-size: 1.1rem;
    margin-bottom: 6px;
}
.size-limit-info {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.size-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-top: auto;
}
.size-badge-checked {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--accent-gold);
    color: var(--primary-dark);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transform: scale(0.5);
    transition: var(--transition-fast);
}
.size-card.active .size-badge-checked {
    opacity: 1;
    transform: scale(1);
}

/* STEP 2: Bases Grid */
.grid-bases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}
.base-card {
    background: rgba(18, 3, 24, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 18px 24px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
}
.base-card:hover {
    background: rgba(18, 3, 24, 0.7);
    border-color: rgba(255, 255, 255, 0.15);
}
.base-card.active {
    border-color: var(--accent-gold);
    background: rgba(232, 160, 7, 0.05);
}
.base-checkbox-indicator {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.7rem;
    color: var(--primary-dark);
    transition: var(--transition-fast);
}
.base-card.active .base-checkbox-indicator {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
}
.base-info h5 {
    font-size: 1.05rem;
    margin-bottom: 2px;
}
.base-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* STEP 3 & 4: Checkboxes & Premium options */
.step-header-sticky {
    position: sticky;
    top: 0;
    background: var(--primary-deep);
    z-index: 10;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-glass);
    margin-bottom: 20px;
}
.limit-counter-bar {
    display: inline-block;
    background: var(--primary-light);
    color: var(--text-white);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 10px;
}
.grid-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}
.topping-checkbox-card {
    background: rgba(18, 3, 24, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 12px;
    user-select: none;
}
.topping-checkbox-card:hover {
    background: rgba(18, 3, 24, 0.7);
    border-color: rgba(255, 255, 255, 0.15);
}
.topping-checkbox-card.active {
    border-color: var(--accent-gold);
    background: rgba(232, 160, 7, 0.05);
}
.topping-checkbox-indicator {
    width: 18px;
    height: 18px;
    border: 2px solid var(--text-muted);
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.65rem;
    color: var(--primary-dark);
}
.topping-checkbox-card.active .topping-checkbox-indicator {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
}
.topping-name {
    font-size: 0.9rem;
    font-weight: 500;
}

/* STEP 4: Premium additions with quantity control */
.grid-premium {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 14px;
}
.premium-card {
    background: rgba(18, 3, 24, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}
.premium-card:hover {
    background: rgba(18, 3, 24, 0.7);
}
.premium-info {
    flex: 1;
}
.premium-name {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2px;
}
.premium-price {
    font-size: 0.85rem;
    color: var(--accent-gold);
    font-weight: 600;
}
.quantity-control {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--primary-purple);
    border-radius: var(--radius-sm);
    padding: 4px;
    border: 1px solid var(--border-glass);
}
.qty-btn {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
}
.qty-btn:hover:not(:disabled) {
    background: var(--primary-light);
}
.qty-val {
    font-size: 0.95rem;
    font-weight: 700;
    min-width: 16px;
    text-align: center;
}

/* Builder Footer */
.builder-footer {
    background: rgba(18, 3, 24, 0.6);
    border-top: 1px solid var(--border-glass);
    padding: 24px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.builder-price-preview {
    display: flex;
    flex-direction: column;
}
.price-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.price-val {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-gold);
}
.builder-nav-btns {
    display: flex;
    gap: 12px;
}

/* ==========================================================================
   PRODUCTS GRID & CARDS (COMBOS & DRINKS)
   ========================================================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    backdrop-filter: blur(12px);
}
.product-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-lg);
    background: var(--bg-card-hover);
}
.product-image-container {
    height: 180px;
    position: relative;
    overflow: hidden;
}
.product-image {
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease;
}
.product-card:hover .product-image {
    transform: scale(1.1);
}
.product-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(15, 3, 20, 0.8) 0%, rgba(15, 3, 20, 0) 100%);
}
.product-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-title {
    font-size: 1.25rem;
    margin-bottom: 8px;
}
.product-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.5;
}

/* For pre-made combinations with sizes */
.product-sizes-selector {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    margin-top: auto;
}
.prod-size-btn {
    flex: 1;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-glass);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-align: center;
    transition: var(--transition-fast);
}
.prod-size-btn:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
}
.prod-size-btn.active {
    background: var(--primary-light);
    border-color: var(--accent-gold);
    color: var(--text-white);
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-glass);
    padding-top: 16px;
    margin-top: auto;
}
.product-price {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--accent-gold);
}
.add-to-cart-simple-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gold);
    color: var(--primary-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}
.add-to-cart-simple-btn:hover {
    background: var(--accent-gold-hover);
    transform: scale(1.1);
    box-shadow: 0 0 12px rgba(232, 160, 7, 0.4);
}

/* ==========================================================================
   HOW IT WORKS SECTION
   ========================================================================== */
.how-it-works {
    margin: 80px 0;
    padding: 60px 40px;
    background: rgba(30, 7, 40, 0.3);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glass);
}
.how-it-works .section-title {
    margin-bottom: 40px;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}
.step-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.step-icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-purple) 100%);
    border: 2px solid var(--border-glass);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-gold);
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}
.step-icon-wrapper svg {
    width: 32px;
    height: 32px;
}
.step-item h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}
.step-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 250px;
}

/* ==========================================================================
   CART DRAWER & OVERLAY
   ========================================================================== */
.cart-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 3, 20, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.cart-drawer-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.cart-drawer {
    position: fixed;
    top: 0;
    right: -450px;
    width: 100%;
    max-width: 450px;
    height: 100vh;
    background: var(--primary-dark);
    background-image: radial-gradient(at 100% 0%, rgba(93, 15, 119, 0.2) 0px, transparent 60%);
    z-index: 1001;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.cart-drawer.active {
    right: 0;
}

.cart-drawer-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cart-drawer-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
}
.close-cart-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
}
.close-cart-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cart-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* Empty State */
.empty-cart-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
    height: 80%;
}
.empty-icon {
    font-size: 3rem;
    color: var(--primary-light);
    margin-bottom: 20px;
}
.empty-icon svg {
    width: 64px;
    height: 64px;
}
.empty-cart-state p {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.empty-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Cart Items */
.cart-items-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}
.cart-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    gap: 14px;
    position: relative;
    animation: fadeIn 0.3s ease-out;
}
.cart-item-info {
    flex: 1;
}
.cart-item-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.cart-item-details {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
    margin-bottom: 12px;
}
.cart-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cart-item-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-gold);
}
.cart-item-remove {
    position: absolute;
    top: 12px;
    right: 12px;
    color: var(--text-muted);
    opacity: 0.7;
    transition: var(--transition-fast);
}
.cart-item-remove:hover {
    color: #ff4d4d;
    opacity: 1;
}

/* Checkout Form Layout */
.checkout-section-title {
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 10px;
    margin: 24px 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-gold);
}
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.form-group input, 
.form-group select {
    width: 100%;
    background: rgba(18, 3, 24, 0.6);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    color: var(--text-white);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}
.form-group input:focus, 
.form-group select:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 10px rgba(232, 160, 7, 0.15);
    outline: none;
}
.form-row {
    display: flex;
    gap: 12px;
}

/* Radio Cards (Delivery/Pickup selection) */
.radio-group-delivery {
    display: flex;
    gap: 12px;
}
.radio-card {
    flex: 1;
    background: rgba(18, 3, 24, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
}
.radio-card input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}
.radio-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}
.radio-card.active {
    border-color: var(--accent-gold);
    background: rgba(232, 160, 7, 0.05);
}
.radio-card.active .radio-content {
    color: var(--text-white);
}
.radio-card.active svg {
    color: var(--accent-gold);
}

/* Cart Footer Totals */
.cart-drawer-footer {
    background: rgba(18, 3, 24, 0.95);
    border-top: 1px solid var(--border-glass);
    padding: 24px;
}
.totals-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}
.totals-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.total-highlight {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-white);
    border-top: 1px dashed var(--border-glass);
    padding-top: 12px;
    margin-top: 4px;
}
.total-highlight span:last-child {
    color: var(--accent-gold);
}
.cart-action-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ==========================================================================
   FLOATING ACTION BUTTON (MOBILE CART) & TOASTS
   ========================================================================== */
.floating-cart-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold) 0%, #ffc439 100%);
    color: var(--primary-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    z-index: 99;
    transition: var(--transition-smooth);
    opacity: 0;
    transform: scale(0.7) translateY(100px);
    pointer-events: none;
}
.floating-cart-btn.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
}
.floating-cart-btn:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 10px 25px rgba(232, 160, 7, 0.4);
}
.floating-badge {
    background: var(--primary-vibrant);
    color: var(--text-white);
    font-size: 0.7rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: -2px;
    right: -2px;
    border: 2px solid var(--accent-gold);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 30px;
    left: 30px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 320px;
}
.toast {
    background: rgba(18, 3, 24, 0.9);
    border: 1px solid var(--accent-gold);
    backdrop-filter: blur(10px);
    color: var(--text-white);
    padding: 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(-120%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.toast.show {
    transform: translateX(0);
}
.toast-icon {
    color: var(--accent-gold);
}
.toast-body {
    font-size: 0.85rem;
    font-weight: 500;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    .hero {
        padding: 80px 0 100px;
    }
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    .cart-btn-label {
        display: none;
    }
    .cart-btn {
        padding: 10px;
    }
    .hero {
        padding: 60px 0 80px;
        margin-bottom: 30px;
    }
    .hero h1 {
        font-size: 2rem;
    }
    .hero p {
        font-size: 1rem;
        margin-bottom: 24px;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .builder-header {
        padding: 20px;
    }
    .builder-body {
        padding: 20px;
        min-height: auto;
    }
    .builder-footer {
        padding: 20px;
    }
    .builder-price-preview .price-val {
        font-size: 1.6rem;
    }
    .grid-sizes {
        grid-template-columns: 1fr;
    }
    .grid-bases {
        grid-template-columns: 1fr;
    }
    .grid-checkboxes {
        grid-template-columns: 1fr;
    }
    .grid-premium {
        grid-template-columns: 1fr;
    }
    .cart-drawer {
        max-width: 100%;
        right: -100%;
    }
    .how-it-works {
        padding: 40px 20px;
        margin: 50px 0;
    }
}