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

:root {
    --bg-main: #f8fafc;
    --surface: #ffffff;
    
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    
    --border: #e2e8f0;
    
    --success: #059669;
    --success-bg: #d1fae5;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --warning: #d97706;
    --warning-bg: #fef3c7;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.container { max-width: 1100px; margin: 0 auto; padding: 30px 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.header-flex { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 16px; margin-bottom: 24px; }
h1, h2, h3 { color: var(--text-main); margin-top: 0; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.875rem; }

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.font-bold { font-weight: 600; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 16px; font-size: 0.875rem; font-weight: 500; border-radius: var(--radius-md); border: none; cursor: pointer; transition: all 0.2s ease; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background-color: var(--primary); color: white; }
.btn-primary:hover:not(:disabled) { background-color: var(--primary-hover); }
.btn-secondary { background-color: var(--surface); color: var(--text-main); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { background-color: var(--bg-main); }
.btn-danger { background-color: var(--danger-bg); color: var(--danger); }
.btn-danger:hover:not(:disabled) { background-color: #fecaca; }
.btn-success { background-color: var(--success); color: white; }
.btn-success:hover:not(:disabled) { background-color: #047857; }
.btn-link { background: transparent; border: none; color: var(--primary); padding: 0; cursor: pointer; text-decoration: none; font-weight: 500; }
.btn-link:hover { text-decoration: underline; }
.btn-sm { padding: 6px 12px; font-size: 0.75rem; }
.w-full { width: 100%; }

.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; color: var(--text-main); margin-bottom: 6px; }
.form-control { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius-md); font-size: 0.875rem; box-sizing: border-box; transition: border-color 0.2s; outline: none; font-family: inherit;}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }
textarea.form-control { resize: vertical; min-height: 100px; }

.table-container { width: 100%; overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); }
.table { width: 100%; border-collapse: collapse; min-width: 600px; font-size: 0.875rem; }
.table th { background: var(--bg-main); color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background-color: var(--bg-main); }

.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 9999px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.badge-pending { background: var(--warning-bg); color: #92400e; }
.badge-approved { background: var(--success-bg); color: var(--success); }
.badge-rejected { background: var(--danger-bg); color: var(--danger); }
.badge-neutral { background: var(--bg-main); color: var(--text-muted); border: 1px solid var(--border); }

.tabs-nav { display: flex; gap: 8px; border-bottom: 1px solid var(--border); margin: 24px 0; }
.tab-btn { padding: 10px 16px; background: transparent; border: none; border-bottom: 2px solid transparent; font-weight: 500; color: var(--text-muted); cursor: pointer; transition: all 0.2s; margin-bottom: -1px; }
.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; animation: fadeIn 0.3s ease-out; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.controls-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 24px; }
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 24px; }
.metric-card { text-align: center; }
.metric-card h3 { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em;}
.metric-card h1 { font-size: 2.5rem; color: var(--text-main); margin: 0; font-weight: 700; }

.event-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin-top: 20px; }

.event-card { 
    background: var(--surface); 
    border: 1px solid var(--border); 
    border-radius: var(--radius-lg); 
    padding: 24px 24px 24px 28px;
    transition: transform 0.2s, box-shadow 0.2s; 
    position: relative; 
    overflow: hidden; 
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}
.event-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.event-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--primary); }

.event-list-item { display: flex; justify-content: space-between; align-items: center; padding: 16px; border-bottom: 1px solid var(--border); transition: background 0.2s; cursor: pointer; }
.event-list-item:hover { background: var(--surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border-color: transparent;}

.scrollable-text-box { background: var(--bg-main); padding: 8px 12px; border-radius: var(--radius-md); font-size: 0.875rem; max-height: 80px; overflow-y: auto; border: 1px solid var(--border); }
.action-cell { display: flex; flex-direction: column; gap: 8px; }

.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15, 23, 42, 0.5); align-items: center; justify-content: center; z-index: 1000; backdrop-filter: blur(4px); }
.modal-box { background: var(--surface); padding: 0; border-radius: var(--radius-lg); width: 90%; max-width: 500px; max-height: 85vh; display: flex; flex-direction: column; box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1); }
.modal-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-body { padding: 20px; overflow-y: auto; }
.history-card { background: var(--bg-main); border: 1px solid var(--border); padding: 16px; border-radius: var(--radius-md); margin-bottom: 12px; }

.eval-container { max-width: 700px; margin: 40px auto; }
.scale-legend { display: flex; justify-content: space-between; background: var(--bg-main); padding: 12px; border-radius: var(--radius-md); font-size: 0.875rem; font-weight: 500; margin-bottom: 24px; color: var(--text-muted);}
.section-title { background: var(--bg-main); color: var(--text-main); font-weight: 600; padding: 10px 16px; border-radius: var(--radius-md); margin: 32px 0 16px 0; border-left: 4px solid var(--primary); }
.question-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px dashed var(--border); gap: 20px; }
.question-text { flex: 1; font-size: 0.9rem; color: var(--text-main); }
.radio-group { display: flex; gap: 16px; }
.radio-group label { display: flex; flex-direction: column; align-items: center; font-size: 0.75rem; color: var(--text-muted); cursor: pointer; gap: 4px; }
.radio-group input[type="radio"] { accent-color: var(--primary); width: 16px; height: 16px; cursor: pointer; }

.alert { padding: 12px 16px; border-radius: var(--radius-md); font-weight: 500; font-size: 0.875rem; margin-bottom: 20px; display: none; }
.alert-error { background: var(--danger-bg); color: var(--danger); border: 1px solid #fecaca; }
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid #a7f3d0; }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid #fde68a; }

@media (max-width: 600px) {
    .question-row { flex-direction: column; align-items: flex-start; }
    .radio-group { width: 100%; justify-content: space-between; margin-top: 8px; }
}

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

.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--surface); color: var(--text-main); border-left: 4px solid var(--primary); padding: 16px 24px; border-radius: var(--radius-md); box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1); display: flex; align-items: center; font-weight: 500; font-size: 0.875rem; transform: translateX(120%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.toast.show { transform: translateX(0); }
.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--danger); }
.toast-warning { border-left-color: var(--warning); }

.tooltip-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--border); color: var(--text-main);
    font-size: 11px; font-weight: bold; cursor: help;
    margin-left: 6px; vertical-align: middle;
}