/* =========================================================
   AURA COFFEE - PREMIUM REDESIGN
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* Main Theme Colors */
    --coffee-brown: #6F4E37;
    --coffee-brown-dark: #5A3E2A;
    --coffee-brown-light: #8B6547;
    --cream: #FFF8F0;
    --cream-dark: #F5EAE0;
    --gold: #D4A853;
    --gold-hover: #E8BF6C;

    /* Base Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --bg-white: #FFFFFF;
    --bg-light: #F9F9F9;
    
    /* Layout & Shadows */
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 12px 24px rgba(0,0,0,0.12);
    
    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ================== GLOBAL RESET & TYPOGRAPHY ================== */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--cream);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1; /* Pushes footer to bottom */
}

a {
    color: var(--coffee-brown);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--gold);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--coffee-brown);
    font-weight: 600;
}

/* ================== UTILITIES ================== */
.bg-coffee { background-color: var(--coffee-brown) !important; color: white !important; }
.bg-cream { background-color: var(--cream) !important; }
.text-coffee { color: var(--coffee-brown) !important; }
.text-gold { color: var(--gold) !important; }

/* Buttons */
.btn-primary-custom {
    background-color: var(--coffee-brown);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all var(--transition-smooth);
}
.btn-primary-custom:hover, .btn-primary-custom:focus {
    background-color: var(--coffee-brown-dark);
    color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-gold {
    background-color: var(--gold);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all var(--transition-smooth);
}
.btn-gold:hover {
    background-color: var(--gold-hover);
    color: white;
    box-shadow: 0 4px 15px rgba(212, 168, 83, 0.4);
    transform: translateY(-2px);
}

.btn-press:active {
    transform: scale(0.95) !important;
}

/* Base Inputs */
.form-control:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 0.25rem rgba(212, 168, 83, 0.25);
}

/* ================== ANIMATIONS ================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ================== NAVBAR ================== */
.navbar-custom {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    transition: all var(--transition-smooth);
}
.navbar-custom.sticky {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1050;
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
}
.navbar-brand {
    color: var(--coffee-brown) !important;
    font-weight: 700;
    font-size: 1.5rem;
}
.nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    margin: 0 10px;
    position: relative;
}
.nav-link:hover, .nav-link.active {
    color: var(--gold) !important;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--gold);
    transition: all var(--transition-smooth);
}
.nav-link:hover::after {
    width: 100%;
    left: 0;
}

.cart-icon-wrapper {
    position: relative;
    display: inline-block;
}
.cart-badge {
    position: absolute;
    top: -8px;
    right: -10px;
    background-color: var(--gold);
    color: white;
    font-size: 0.75rem;
    padding: 0.2em 0.5em;
    border-radius: 50%;
    font-weight: bold;
}

/* ================== HERO & CARDS ================== */
.hero-section {
    background: linear-gradient(135deg, var(--cream) 0%, var(--cream-dark) 100%);
    padding: 5rem 0;
    border-radius: var(--border-radius-lg);
    margin-bottom: 3rem;
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    border: none;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}
.product-img-wrapper {
    position: relative;
    overflow: hidden;
    padding-top: 100%; /* 1:1 Aspect Ratio */
}
.product-img-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.product-card:hover .product-img-wrapper img {
    transform: scale(1.08);
}
.badge-category {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--gold);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    z-index: 2;
}

/* ================== CHECKOUT & CART ================== */
.cart-summary {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 100px;
}
.qty-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid #ddd;
    background: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.qty-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
}
.qty-input {
    width: 50px;
    text-align: center;
    border: none;
    background: transparent;
    font-weight: 600;
}

.step-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}
.step {
    text-align: center;
    position: relative;
    flex: 1;
}
.step::after {
    content: '';
    position: absolute;
    top: 15px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: #ddd;
    z-index: 1;
}
.step:last-child::after { display: none; }
.step-circle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #ddd;
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
    font-weight: bold;
}
.step.active .step-circle {
    background: var(--gold);
    box-shadow: 0 0 0 4px rgba(212, 168, 83, 0.2);
}
.step.active ~ .step::after { background: var(--gold); } /* simplified for sequential progression if needed */

/* ================== FOOTER ================== */
.footer-custom {
    background-color: var(--coffee-brown);
    color: var(--cream);
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
}
.footer-custom a {
    color: var(--cream-dark);
}
.footer-custom a:hover {
    color: var(--gold);
}

/* ================== BACK TO TOP ================== */
#backToTop {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--gold);
    color: white;
    border: none;
    box-shadow: var(--shadow-md);
    display: none; /* hidden by default */
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 1000;
    transition: all var(--transition-fast);
}
#backToTop:hover {
    background-color: var(--gold-hover);
    transform: translateY(-3px);
}
.text-coffee {
    color: #6F4E37;
}

.text-gold {
    color: #d4af37;
}
/* Smooth transition */
body {
    transition: background-color 0.3s, color 0.3s;
}

    /* DARK MODE */
    body.dark-mode {
        background-color: #121212;
        color: #ffffff;
    }

/* Navbar */
.dark-mode .navbar-custom {
    background-color: #1f1f1f !important;
}

/* Card */
.dark-mode .card {
    background-color: #1e1e1e;
    color: #fff;
}

/* Dropdown */
.dark-mode .dropdown-menu {
    background-color: #2b2b2b;
    color: white;
}

/* Input */
.dark-mode input,
.dark-mode select,
.dark-mode textarea {
    background-color: #2b2b2b;
    color: white;
    border: 1px solid #555;
}

/* Table */
.dark-mode table {
    color: white;
}

/* Footer */
/* ================== ZALO FLOAT ================== */
.zalo-float {
    position: fixed;
    bottom: 85px;
    right: 18px;
    width: 50px;
    height: 50px;
    background-color: #0068ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 104, 255, 0.4);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
}
.zalo-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 104, 255, 0.6);
}
.zalo-float img {
    width: 32px;
    height: 32px;
}
.zalo-float::after {
    content: "Chat Zalo";
    position: absolute;
    right: 60px;
    background: #0068ff;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: all 0.3s ease;
    pointer-events: none;
}
.zalo-float:hover::after {
    opacity: 1;
    transform: translateX(0);
}