@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');

:root {
    --bg-dark: #0b0f19;
    --bg-gradient: linear-gradient(135deg, #0b0f19 0%, #1a2333 100%);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --primary: #00f0ff;
    --secondary: #ff0055;
    --text-main: #f0f4f8;
    --text-muted: #94a3b8;
    --success: #10b981;
    --danger: #ef4444;
    --radius: 16px;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
}

body {
    background: var(--bg-dark);
    background-image: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Background aesthetic elements */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 240, 255, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 0, 85, 0.03) 0%, transparent 30%);
    z-index: -1;
    animation: rotate 60s linear infinite;
    pointer-events: none;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: transform 0.3s var(--transition), box-shadow 0.3s var(--transition);
}

.glass-panel:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

h1, h2, h3 {
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--primary), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-main);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #0284c7);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-secondary:hover {
    background: rgba(0, 240, 255, 0.1);
}

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

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

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

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
    background: rgba(0, 0, 0, 0.4);
}

select.form-control option {
    background: var(--bg-dark);
    color: var(--text-main);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

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

th {
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

tr {
    transition: background-color 0.2s ease;
}

tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-admin {
    background: rgba(255, 0, 85, 0.2);
    color: var(--secondary);
    border: 1px solid rgba(255, 0, 85, 0.3);
}

.badge-user {
    background: rgba(0, 240, 255, 0.2);
    color: var(--primary);
    border: 1px solid rgba(0, 240, 255, 0.3);
}

.point-score {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--success);
}

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

.hidden { display: none; }

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s var(--transition);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.rank-diff {
    font-family: monospace;
    font-size: 1.1rem;
}
.rank-diff.positive { color: var(--danger); /* bad (more points) */ }
.rank-diff.perfect { color: var(--success); /* 0 diff = good */ }

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* User rank crown */
.rank-1 .crown { color: gold; font-size: 1.2rem; }
.rank-2 .crown { color: silver; font-size: 1.2rem; }
.rank-3 .crown { color: #cd7f32; font-size: 1.2rem; }

/* Footer */
footer {
    padding: 3rem 1rem;
    margin-top: 4rem;
    text-align: center;
    border-top: 1px solid var(--card-border);
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

footer:hover {
    opacity: 1;
}

footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

@media print {
    footer { display: none !important; }
}