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

:root {
    --primary: #0F172A;
    --secondary: #1E293B;
    --accent: #0066FF;
    --accent-hover: #0052cc;
    --bg-color: #F8FAFC;
    --text-color: #334155;
    --text-muted: #64748B;
    --border-color: #E2E8F0;
    --card-bg: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.025);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--primary);
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* Premium Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    border: none;
    color: #fff;
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 6px -1px rgba(245, 158, 11, 0.3);
    transition: var(--transition);
}

.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(135deg, var(--accent-hover), #b45309);
    box-shadow: 0 10px 15px -3px rgba(245, 158, 11, 0.4);
    transform: translateY(-2px);
    color: #fff;
}

.btn-outline-primary {
    color: var(--accent);
    border: 2px solid var(--accent);
    font-weight: 600;
    border-radius: var(--radius-md);
    background: transparent;
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 6px -1px rgba(245, 158, 11, 0.3);
}

/* Premium Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

/* Navbar */
.navbar {
    background-color: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary) !important;
    letter-spacing: -0.05em;
}

.navbar-brand span {
    color: var(--accent);
}

.nav-link {
    font-weight: 500;
    color: var(--text-color) !important;
    transition: var(--transition);
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-md);
}

.nav-link:hover {
    color: var(--accent) !important;
    background-color: rgba(245, 158, 11, 0.05);
}

/* Sidebar */
.sidebar {
    background-color: var(--primary);
    color: #fff;
    min-height: 100vh;
    box-shadow: inset -1px 0 0 rgba(255,255,255,0.1);
}

.sidebar .nav-link {
    color: #cbd5e1 !important;
    padding: 0.8rem 1.5rem !important;
    font-weight: 500;
    border-radius: 0;
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
    background-color: rgba(255,255,255,0.05);
    color: #fff !important;
    border-left-color: var(--accent);
}

.sidebar .nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 10px;
    opacity: 0.8;
}

.sidebar .nav-link:hover i {
    opacity: 1;
    color: var(--accent);
}

/* Product Cards */
.product-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    border: none;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-card .img-wrapper {
    position: relative;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    overflow: hidden;
    background-color: #f1f5f9;
}

.product-card .img-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .img-wrapper img {
    transform: scale(1.05);
}

.product-card .card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-card .price-tag {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

/* Form Inputs */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    background-color: #fff;
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.1);
    outline: none;
}

/* Custom Checkbox */
.form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

/* Badges */
.badge {
    padding: 0.4em 0.8em;
    font-weight: 600;
    border-radius: 2rem;
    font-size: 0.75rem;
}