:root {
    --primary-color: #fce205; /* Main Yellow Accent */
    --primary-dark: #e5cc00;
    --text-main: #333333;
    --text-muted: #777777;
    --bg-light: #f5f5f5;
    --bg-white: #ffffff;
    --border-color: #eaeaea;
    --success-color: #28a745;
    --error-color: #dc3545;
    --font-stack: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    font-family: var(--font-stack);
    margin: 0;
    padding: 0;
    background-color: var(--bg-light);
    color: var(--text-main);
}

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

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Header & Navigation */
.top-bar {
    background-color: var(--text-main);
    color: var(--bg-white);
    font-size: 0.85rem;
    padding: 8px 5%;
    display: flex;
    justify-content: space-between;
}

.top-bar a {
    margin-left: 20px;
    color: #ccc;
}
.top-bar a:hover {
    color: var(--bg-white);
}

.main-header {
    background-color: var(--bg-white);
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--primary-color);
}

.logo h2 {
    margin: 0;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -1px;
}

.main-nav {
    display: flex;
    gap: 30px;
}

.main-nav a {
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
}

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

.action-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.action-nav .highlight-btn {
    background-color: var(--primary-color);
    color: var(--text-main);
    padding: 10px 20px;
    font-weight: 700;
    border-radius: 4px;
    font-size: 0.9rem;
}

.action-nav .highlight-btn:hover {
    background-color: var(--primary-dark);
}

/* Container */
#content {
    padding: 40px 5%;
    min-height: 60vh;
}

/* Hero Section */
.hero {
    background-color: var(--border-color);
    padding: 60px 40px;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-top: 10px;
    margin-bottom: 20px;
}

.hero-text .badge {
    background-color: var(--primary-color);
    padding: 5px 15px;
    font-weight: bold;
    border-radius: 50px;
    display: inline-block;
}

.hero-btn {
    background-color: var(--text-main);
    color: var(--bg-white);
    padding: 15px 30px;
    font-weight: 600;
    display: inline-block;
}

/* Page Layouts */
.catalog-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
}

.sidebar h3 {
    background-color: var(--primary-color);
    margin: 0;
    padding: 15px;
    font-size: 1rem;
    text-transform: uppercase;
}

.sidebar ul {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-top: none;
}

.sidebar li a {
    display: block;
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}
.sidebar li a:hover {
    background-color: var(--bg-light);
    color: var(--primary-dark);
}

.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background: var(--bg-white);
    padding: 15px;
    border: 1px solid var(--border-color);
}
.search-bar input, .search-bar select {
    padding: 10px;
    border: 1px solid #ccc;
    outline: none;
}
.search-bar button {
    background-color: var(--primary-color);
    border: none;
    padding: 10px 20px;
    font-weight: bold;
    cursor: pointer;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.product-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    transition: 0.2s ease-in-out;
}

.product-card:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.product-image-ph {
    width: 100%;
    height: 180px;
    background-color: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
}

.product-info {
    padding: 15px;
}

.product-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 5px;
}

.product-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 5px 0 15px 0;
    height: 35px;
    overflow: hidden;
}

.product-price {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 15px;
}

.btn-card {
    display: inline-block;
    padding: 8px 15px;
    font-size: 0.85rem;
    font-weight: bold;
    border: 1px solid var(--text-main);
    background: transparent;
    color: var(--text-main);
    width: 80%;
}

.product-card:hover .btn-card {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tables */
.data-table {
    width: 100%;
    background-color: var(--bg-white);
    border-collapse: collapse;
    margin-top: 15px;
    border: 1px solid var(--border-color);
}
.data-table th, .data-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 0.95rem;
}
.data-table th {
    background-color: var(--bg-light);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
}

/* Forms */
.form-container {
    background: var(--bg-white);
    padding: 30px;
    border: 1px solid var(--border-color);
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

.btn-primary {
    background-color: var(--text-main);
    color: var(--bg-white);
    border: none;
    padding: 12px 25px;
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--primary-color);
    color: var(--text-main);
}

.btn-danger {
    background-color: var(--error-color);
    color: white;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    font-weight: bold;
}

/* Details Page */
.details-layout {
    display: flex;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    gap: 40px;
    padding: 40px;
}
.details-image {
    flex: 1;
    background: var(--bg-light);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #ccc;
    font-size: 2rem;
}
.details-info {
    flex: 1;
}
.details-info h1 {
    margin-top: 0;
    font-size: 2rem;
}
.details-info .price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin: 20px 0;
}

.error { color: var(--error-color); font-size: 0.85rem; margin-top: 5px; display: block;}
.success { color: var(--success-color); font-size: 0.9rem; font-weight: bold;}