:root { --bg-color: #f4f6f8; --card-bg: #ffffff; --text-main: #1f2937; --text-muted: #6b7280; --primary: #2563eb; --primary-hover: #1d4ed8; --border-color: #e5e7eb; --error: #ef4444; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background-color: var(--bg-color); color: var(--text-main); line-height: 1.5; }
.container { max-width: 1400px; margin: 0 auto; padding: 2rem 1.5rem; }
.navbar { background-color: var(--card-bg); border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; }
.nav-brand a { font-size: 1.25rem; font-weight: 600; color: var(--text-main); text-decoration: none; }
.nav-links a { margin-left: 1.5rem; text-decoration: none; color: var(--text-main); font-weight: 500; }
.nav-links a:hover { color: var(--primary); }
.auth-wrapper { display: flex; justify-content: center; align-items: center; min-height: 70vh; }
.auth-card { background: var(--card-bg); padding: 2.5rem; border-radius: 8px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); width: 100%; max-width: 400px; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-group input, .form-group select { width: 100%; padding: 0.75rem; border: 1px solid var(--border-color); border-radius: 4px; font-size: 1rem; }
.btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 4px; font-weight: 500; text-decoration: none; text-align: center; cursor: pointer; border: none; }
.btn-primary { background-color: var(--primary); color: white; width: 100%; }
.btn-secondary { background-color: var(--border-color); color: var(--text-main); }
.camera-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid-small { max-width: 900px; }
.camera-card { background: var(--card-bg); border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,0.1); display: flex; flex-direction: column; }
.camera-header { padding: 1rem; border-bottom: 1px solid var(--border-color); }
.iframe-container { position: relative; width: 100%; background-color: #000; padding-top: 56.25%; }
.iframe-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.single-camera-wrapper { max-width: 1100px; margin: 0 auto; }
.camera-header-large { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 1.5rem; }
.error-message { background-color: #fef2f2; color: var(--error); padding: 0.75rem; border-radius: 4px; margin-bottom: 1.5rem; border: 1px solid #fecaca; }
.admin-header-flex { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.table-responsive { overflow-x: auto; background: var(--card-bg); border-radius: 8px; }
.admin-table { width: 100%; border-collapse: collapse; text-align: left; }
.admin-table th, .admin-table td { padding: 1rem; border-bottom: 1px solid var(--border-color); }
.btn-text { background: none; border: none; color: var(--primary); cursor: pointer; font-weight: 500; text-decoration: none; margin-right: 0.75rem; font-size: 0.9rem; }
.text-danger { color: var(--error) !important; }
.badge { display: inline-block; padding: 0.25em 0.6em; font-size: 0.75rem; font-weight: 700; border-radius: 12px; }
.badge-success { background-color: #dcfce7; color: #166534; } .badge-danger { background-color: #fee2e2; color: #991b1b; }
.form-wrapper { max-width: 600px; background: var(--card-bg); padding: 2rem; border-radius: 8px; }
.form-check { display: flex; align-items: center; margin-bottom: 1.25rem; }
.form-check input { margin-right: 0.75rem; width: 1.25rem; height: 1.25rem; }
.form-actions { display: flex; justify-content: flex-end; gap: 1rem; margin-top: 2rem; }
.form-actions .btn { width: auto; }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.camera-access-card { border: 1px solid var(--border-color); padding: 1rem; border-radius: 6px; display: flex; align-items: center; }