/* SlabKeeper - Main Stylesheet */

:root {
    --primary: #2d3748;
    --secondary: #3b82f6;
    --accent: #10b981;
    --background: #f9fafb;
    --text: #111827;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --white: #ffffff;
    --error: #ef4444;
    --success: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

a {
    color: var(--secondary);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--primary);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.logo span {
    color: var(--secondary);
}

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

.nav-links a {
    color: var(--white);
    font-weight: 500;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #2563eb;
}

.btn-accent {
    background-color: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background-color: #059669;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--secondary);
    color: var(--secondary);
}

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

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
}

.form-control.error {
    border-color: var(--error);
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.success-message {
    color: var(--success);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* Stats */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--secondary), #2563eb);
    color: var(--white);
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.stat-card h3 {
    color: var(--white);
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary), #1a202c);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Features */
.features {
    padding: 4rem 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Dashboard Layout */
.dashboard {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

.sidebar {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 0.75rem;
    height: fit-content;
    position: sticky;
    top: 20px;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    margin-bottom: 0.5rem;
}

.sidebar a {
    display: block;
    padding: 0.75rem;
    border-radius: 0.5rem;
    color: var(--text);
    transition: all 0.2s;
}

.sidebar a:hover,
.sidebar a.active {
    background-color: var(--secondary);
    color: var(--white);
}

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background-color: var(--background);
    font-weight: 600;
    color: var(--primary);
}

.table tr:hover {
    background-color: var(--background);
}

/* Footer */
.footer {
    background-color: var(--primary);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* Responsive */
@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        gap: 1rem;
    }
}