:root {
    --bg-color: #0f172a; /* Deep Slate */
    --card-bg: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #38bdf8; /* Sky Blue */
    --accent-hover: #0ea5e9;
    --danger: #ef4444;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #334155;
    margin-bottom: 20px;
}

h1 { font-weight: 300; letter-spacing: 2px; margin: 0; }

button {
    background: var(--accent);
    color: #0f172a;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: 0.2s;
}
button:hover { background: var(--accent-hover); }
button.danger { background: var(--danger); color: white; }
button.secondary { background: #334155; color: white; }

/* Dashboard Grid */
#sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    width: 90%;
    max-width: 1200px;
}

.site-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-main);
    border: 1px solid #334155;
    transition: transform 0.2s, border-color 0.2s;
    display: flex;
    flex-direction: column;
}
.site-card:hover { transform: translateY(-4px); border-color: var(--accent); }

.site-name { font-size: 1.2rem; font-weight: bold; margin-bottom: 4px; }
.site-url { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 12px; }

.tags-container span {
    background: #0f172a;
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-right: 5px;
}

/* Filter Bar */
#filter-bar { margin-bottom: 30px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;}
.filter-btn {
    background: var(--card-bg);
    border: 1px solid #334155;
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
}
.filter-btn.active { background: var(--accent); color: #0f172a; border-color: var(--accent); }

/* Modal & Forms */
.modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    display: none; justify-content: center; align-items: center;
}
.modal-content {
    background: var(--card-bg); padding: 30px; border-radius: 12px; width: 350px;
    display: flex; flex-direction: column; gap: 15px;
}
input {
    background: #0f172a; border: 1px solid #334155; color: white; padding: 12px; border-radius: 6px; outline: none;
}
input:focus { border-color: var(--accent); }

/* Utilities */
.hidden { display: none !important; }
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid #334155; }