:root {
    --primary-color: #ea580c;
    --primary-hover: #c2410c;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --success: #10b981;
    --danger: #ef4444;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
}

h1,
h2,
h3 {
    font-weight: 600;
    color: var(--text-main);
}

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

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.card {
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    gap: 0.5rem;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 6px -1px rgba(234, 88, 12, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 8px -1px rgba(234, 88, 12, 0.4);
    filter: brightness(1.1);
}

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

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

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

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

.hidden {
    display: none !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: white;
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
    display: block;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    border-radius: 0.375rem;
    margin-bottom: 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    background-color: #fff7ed;
    color: var(--primary-color);
}

.main-content {
    padding: 2rem;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
        padding-bottom: 60px;
        /* Space for bottom nav */
    }

    .sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 60px;
        z-index: 1000;
        padding: 0;
        border-right: none;
        border-top: 1px solid var(--border-color);
        display: flex;
        justify-content: space-around;
        align-items: center;
        background: white;
    }

    .sidebar-brand {
        display: none;
    }

    .sidebar nav {
        display: flex;
        width: 100%;
        justify-content: space-around;
    }

    .nav-link {
        flex-direction: column;
        padding: 0.5rem;
        font-size: 0.75rem;
        margin-bottom: 0;
        border-radius: 0;
        background: transparent !important;
        /* Remove active bg for cleaner mobile look */
        color: var(--text-muted);
    }

    .nav-link.active {
        color: var(--primary-color);
        background: transparent !important;
    }

    .main-content {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr !important;
        /* Stack cards */
    }

    .header {
        flex-direction: column;
        align-items: stretch;
        /* Stretch to fill width */
        gap: 1rem;
    }

    .header button {
        width: 100%;
    }
}

/* Table Responsiveness */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}