:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --accent-color: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.3);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --error-color: #ef4444;
    --success-color: #22c55e;
    --container-max-width: 1200px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    background-image:
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(56, 189, 248, 0.1) 0px, transparent 50%);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

@media (min-width: 768px) {
    body {
        padding: 2rem;
    }
}

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    padding: 1.5rem;
    width: 100%;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    margin: 0 auto;
}

@media (min-width: 768px) {
    .glass-card {
        padding: 2.5rem;
        border-radius: 1.5rem;
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
}

h1,
h2,
h3,
h4 {
    color: var(--text-primary);
    letter-spacing: -0.025em;
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 1.75rem;
}

@media (min-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
}

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

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

.form-control {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.btn-primary {
    width: 100%;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    border-radius: 0.75rem;
    padding: 1rem;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    user-select: none;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(56, 189, 248, 0.4);
}

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

.alert {
    padding: 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    line-height: 1.4;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: #86efac;
}

.links {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.links a {
    color: var(--accent-color);
    text-decoration: none;
    margin: 0 0.5rem;
}

/* Utilities */
.text-center {
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 1rem;
}

/* Custom spacing for Mobile */
.mt-2 {
    margin-top: 0.5rem;
}

.mt-4 {
    margin-top: 1rem;
}

@media (min-width: 768px) {
    .mt-4 {
        margin-top: 2rem;
    }
}

/* --- PRINT STYLES --- */
@media print {
    body {
        background: white !important;
        background-image: none !important;
        color: black !important;
        padding: 0 !important;
    }

    .main-container,
    .admin-container {
        max-width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .glass-card {
        background: white !important;
        color: black !important;
        border: 1px solid #ccc !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        box-shadow: none !important;
        margin: 0 0 1.5rem 0 !important;
        padding: 1rem !important;
        page-break-inside: avoid;
    }

    .btn-primary,
    .menu-container,
    form.filter-bar,
    .alert,
    footer,
    a,
    button {
        display: none !important;
    }

    h1,
    h2,
    h3,
    h4,
    .text-primary,
    .text-secondary {
        color: black !important;
    }

    table {
        border-collapse: collapse !important;
        width: 100% !important;
    }

    th,
    td {
        border: 1px solid #ddd !important;
        color: black !important;
        padding: 8px !important;
        text-align: left !important;
    }

    canvas {
        max-width: 100% !important;
        height: auto !important;
    }
}