:root {
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #fca5a5;
    --accent-color: #38bdf8;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --danger-color: #ef4444;
    --success-color: #22c55e;
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1280px; margin: 0 auto; padding: 2rem; }

header {
    background-color: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
}

header nav { display: flex; justify-content: space-between; align-items: center; padding: 0 2rem; max-width: 1280px; margin: 0 auto; }

.brand { font-size: 1.25rem; font-weight: 700; color: var(--text-color); text-decoration: none; letter-spacing: -0.025em; }

.nav-links { display: flex; gap: 2rem; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 0.95rem; transition: var(--transition); }
.nav-links a:hover { color: var(--text-color); }

.card { background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: 12px; padding: 2rem; box-shadow: var(--card-shadow); transition: var(--transition); }
.card:hover { transform: translateY(-2px); border-color: var(--primary-color); }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.6rem 1.2rem; font-size: 0.9rem; font-weight: 600; border-radius: 8px; color: white; background-color: var(--primary-color); border: none; cursor: pointer; transition: var(--transition); text-decoration: none; box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.4); }
.btn:hover { background-color: var(--primary-hover); transform: translateY(-1px); }
.btn-secondary { background-color: transparent; border: 1px solid var(--border-color); color: var(--text-muted); box-shadow: none; }
.btn-secondary:hover { border-color: var(--text-muted); color: var(--text-color); background-color: rgba(255, 255, 255, 0.05); }
.btn-danger { background-color: transparent; color: var(--danger-color); border: 1px solid rgba(239, 68, 68, 0.2); box-shadow: none; }
.btn-danger:hover { background-color: rgba(239, 68, 68, 0.1); border-color: var(--danger-color); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }

.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }

h1 { font-size: 2.25rem; font-weight: 800; letter-spacing: -0.05em; margin-bottom: 0.5rem; }
h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-color); }
h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--text-color); }
p { color: var(--text-muted); margin-bottom: 1.5rem; }

.table-container { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border-color); }
table { width: 100%; border-collapse: collapse; }
th { background-color: rgba(0, 0, 0, 0.2); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; color: var(--text-muted); padding: 1rem 1.5rem; text-align: left; }
td { padding: 1rem 1.5rem; border-top: 1px solid var(--border-color); color: var(--text-color); font-size: 0.95rem; }
tr:hover td { background-color: rgba(255, 255, 255, 0.02); }

.form-group { margin-bottom: 1rem; }
label { font-size: 0.85rem; font-weight: 500; margin-bottom: 0.5rem; display: block; }
input, select { background-color: rgba(0, 0, 0, 0.2); border: 1px solid var(--border-color); color: var(--text-color); padding: 0.75rem; border-radius: 6px; width: 100%; font-family: inherit; transition: var(--transition); box-sizing: border-box; }
input:focus, select:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2); }

.actions { display: flex; gap: 0.75rem; margin-top: 1.5rem; flex-wrap: wrap; }
.text-muted { color: var(--text-muted); }

.modal { display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(15, 23, 42, 0.8); backdrop-filter: blur(4px); align-items: center; justify-content: center; }
.modal[style*="display: block"] { display: flex !important; }
.modal-content { background-color: var(--surface-color); border: 1px solid var(--border-color); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); border-radius: 16px; padding: 2.5rem; width: 90%; max-width: 480px; position: relative; animation: modalIn 0.3s ease-out; margin: auto; }

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.close { color: var(--text-muted); transition: color 0.2s; cursor: pointer; font-size: 1.5rem; }
.close:hover { color: var(--text-color); }

.badge { display: inline-flex; align-items: center; padding: 0.25rem 0.6rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.025em; }
.badge-blue { background-color: rgba(56, 189, 248, 0.1); color: #38bdf8; }
.badge-purple { background-color: rgba(168, 85, 247, 0.1); color: #a855f7; }
.badge-gray { background-color: rgba(148, 163, 184, 0.1); color: #94a3b8; }

.fab-container { position: fixed; bottom: 2rem; right: 2rem; display: flex; flex-direction: column-reverse; gap: 1rem; z-index: 1000; }
.fab { width: 56px; height: 56px; border-radius: 50%; background: var(--surface-color); border: 1px solid var(--border-color); color: var(--text-color); display: flex; align-items: center; justify-content: center; font-size: 1.25rem; cursor: pointer; box-shadow: 0 4px 6px rgba(0,0,0,0.3); transition: transform 0.2s, background 0.2s; }
.fab:hover { transform: translateY(-2px); background: var(--border-color); }
.fab-primary { background: var(--primary-color); color: white; border: none; }
.fab-primary:hover { background: var(--primary-hover); }
.fab-danger { background: var(--danger-color); color: white; border: none; }
.fab-danger:hover { filter: brightness(1.1); }

footer { text-align: center; padding: 2rem; color: var(--text-muted); font-size: 0.85rem; border-top: 1px solid var(--border-color); margin-top: 4rem; }