/**
 * LBS Theme Main Styles
 * Sistema de Pedidos - Design moderno e responsivo
 */

/* ===================================
   CSS Variables
   =================================== */
:root {
    /* Colors */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --primary-light: #f0f3ff;
    --secondary: #764ba2;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    
    --border: #e5e7eb;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    
    /* Typography */
    --font-display: 'Sora', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --header-height: 80px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* ===================================
   Utilities
   =================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid transparent;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===================================
   Header
   =================================== */
.site-header {
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--text-primary);
}

.logo a:hover {
    color: var(--primary);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.main-nav a:hover {
    color: var(--primary);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.cart-toggle {
    position: relative;
    background: var(--primary-light);
    color: var(--primary);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.cart-toggle:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

.cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--error);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    font-family: var(--font-display);
}

/* ===================================
   Cart Sidebar
   =================================== */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    max-width: 100%;
    height: 100vh;
    background: white;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

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

.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.cart-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 2px solid var(--bg-tertiary);
}

.cart-sidebar-header h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-primary);
}

.cart-close {
    background: var(--bg-tertiary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.cart-close:hover {
    background: var(--error);
    color: white;
    transform: rotate(90deg);
}

.cart-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.cart-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.cart-empty svg {
    margin: 0 auto 1.5rem;
    color: var(--text-light);
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cart-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    transition: var(--transition);
}

.cart-item:hover {
    background: var(--bg-tertiary);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.cart-item-addons,
.cart-item-notes {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0.25rem 0;
}

.cart-item-notes {
    font-style: italic;
    color: var(--text-light);
}

.cart-item-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cart-item-quantity .qty-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: white;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

.cart-item-quantity .qty-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.cart-item-quantity .qty-value {
    font-weight: 600;
    font-family: var(--font-display);
    min-width: 24px;
    text-align: center;
}

.cart-item-remove {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.25rem;
    transition: var(--transition);
}

.cart-item-remove:hover {
    color: var(--error);
}

.cart-item-price {
    text-align: right;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
    font-family: var(--font-display);
}

.cart-sidebar-footer {
    padding: 1.5rem;
    border-top: 2px solid var(--bg-tertiary);
    background: white;
}

.cart-totals {
    margin-bottom: 1.5rem;
}

.cart-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.125rem;
}

/* ===================================
   Footer
   =================================== */
.site-footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-info h3,
.footer-hours h4,
.footer-social h4 {
    font-family: var(--font-display);
    margin-bottom: 1rem;
    color: white;
}

.footer-info p,
.footer-hours p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-info svg,
.footer-hours svg {
    flex-shrink: 0;
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ===================================
   Notifications
   =================================== */
.lbs-notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 10000;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.lbs-notification.show {
    opacity: 1;
    transform: translateY(0);
}

.lbs-notification svg {
    color: var(--success);
    flex-shrink: 0;
}

.lbs-notification.error svg {
    color: var(--error);
}

.lbs-notification span {
    font-weight: 500;
    color: var(--text-primary);
}

/* ===================================
   Loading States
   =================================== */
.spinner-small {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===================================
   Animations
   =================================== */
.fade-in {
    animation: fadeIn 0.4s ease;
}

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

/* ===================================
   Responsive
   =================================== */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .main-nav {
        display: none;
    }

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .lbs-notification {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }
}

@media (max-width: 480px) {
    :root {
        --header-height: 64px;
    }

    .container {
        padding: 0 1rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}