* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --primary: #0a1a3a;
    --primary-light: #1a3a6a;
    --accent: #8b7a3e;
    --accent-light: #c4b07a;
    --bg: #f5f6fa;
    --card-bg: #ffffff;
    --text: #1a1a2e;
    --text-light: #4a4a5a;
    --border: #e2e4ea;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --success: #1a7a4a;
    --danger: #8b1a1a;
    --teacher-color: #0a1a3a;
    --student-color: #4a1a6a;
}

html, body { overflow-x: hidden; width: 100%; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    padding: 10px;
    min-height: 100vh;
}

.container { max-width: 1500px; width: 100%; margin: 0 auto; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #eef2f6; border-radius: 10px; }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 10px; }

.header {
    text-align: center; padding: 18px 16px;
    background: linear-gradient(135deg, #0a1a3a 0%, #1a3a6a 100%);
    border-radius: var(--radius);
    margin-bottom: 14px; color: white; position: relative; overflow: hidden;
    box-shadow: 0 4px 20px rgba(10,26,58,0.25);
}
.header h1 { font-size: 1.2rem; font-weight: 700; display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }
.header h1 i { color: var(--accent-light); font-size: 1rem; }
.header p { color: rgba(255,255,255,0.75); font-size: 0.75rem; margin-top: 4px; }
.header .badge-ph {
    display: inline-block; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.8);
    padding: 4px 14px; border-radius: 30px; font-weight: 500; font-size: 0.6rem; margin-top: 8px;
    border: 1px solid rgba(255,255,255,0.06);
}

.tabs { display: flex; gap: 8px; margin-bottom: 14px; justify-content: center; flex-wrap: wrap; }
.tab-btn {
    padding: 12px 20px; border: none; border-radius: 60px; font-weight: 600; font-size: 0.8rem;
    cursor: pointer; transition: var(--transition); display: flex; align-items: center; gap: 6px;
    background: var(--card-bg); color: var(--text); box-shadow: var(--shadow); border: 1.5px solid transparent; flex: 1; min-width: 140px; justify-content: center;
}
.tab-btn.active-teacher { background: var(--teacher-color); color: white; border-color: var(--accent); }
.tab-btn.active-student { background: var(--student-color); color: white; border-color: var(--accent); }
.tab-btn .count { background: rgba(255,255,255,0.2); padding: 2px 8px; border-radius: 30px; font-size: 0.6rem; }

.generator-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; width: 100%; }

.panel {
    background: var(--card-bg); border-radius: var(--radius); padding: 16px;
    box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); width: 100%; overflow: hidden;
}
.panel-title {
    font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 16px;
    display: flex; align-items: center; gap: 8px; border-bottom: 2px solid #eef2f6; padding-bottom: 10px; flex-wrap: wrap;
}
.panel-title i { color: var(--accent); }
.panel-title .count-badge { background: var(--primary); color: white; font-size: 0.6rem; padding: 3px 10px; border-radius: 30px; margin-left: auto; }

.form-group { margin-bottom: 12px; width: 100%; }
.form-group label {
    display: block; font-weight: 600; font-size: 0.72rem; color: var(--text-light); margin-bottom: 4px;
    letter-spacing: 0.3px; text-transform: uppercase;
}
.form-group label .required { color: var(--danger); margin-left: 2px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 10px 12px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
    font-size: 0.85rem; background: #fafcff; transition: var(--transition); font-family: inherit; color: var(--text);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-light); background: white; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; width: 100%; }

.section-divider {
    display: flex; align-items: center; gap: 10px; margin: 20px 0 12px;
    font-weight: 700; color: var(--primary); font-size: 0.8rem;
}
.section-divider::after { content: ''; flex: 1; height: 1.5px; background: linear-gradient(to right, var(--accent), transparent); }

.table-wrap {
    border: 1px solid var(--border); border-radius: var(--radius-sm); 
    max-height: 250px; overflow-y: auto; overflow-x: auto; margin-bottom: 10px; width: 100%;
}
.custom-edit-table { width: 100%; min-width: 550px; border-collapse: collapse; font-size: 0.75rem; }
.custom-edit-table th { background: var(--primary); color: white; padding: 8px; text-align: left; font-size: 0.65rem; text-transform: uppercase; }
.custom-edit-table td { padding: 6px; border-bottom: 1px solid #f0f2f5; }
.custom-edit-table input { width: 100%; padding: 6px; border: 1px solid var(--border); border-radius: 4px; font-size: 0.75rem; }
.remove-btn { background: var(--danger); color: white; border: none; border-radius: 4px; padding: 6px 10px; cursor: pointer; font-size: 0.7rem; }

.upload-grid-6 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
@media(min-width: 768px) {
    .upload-grid-6 { grid-template-columns: repeat(6, 1fr); }
}
.upload-group {
    border: 2px dashed var(--border); border-radius: var(--radius-sm); padding: 8px;
    text-align: center; cursor: pointer; transition: var(--transition); background: #fafcff; position: relative; min-height: 65px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.upload-group:hover { border-color: var(--primary-light); background: #f0f4ff; }
.upload-group .upload-preview { max-width: 100%; max-height: 45px; border-radius: 4px; margin-top: 4px; object-fit: contain; }
.upload-group .upload-placeholder { color: var(--text-light); font-size: 0.55rem; line-height: 1.2; }
.upload-group input[type="file"] { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }

.doc-selector {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px;
    background: #f8fafc; padding: 10px; border-radius: var(--radius-sm); border: 1px solid var(--border); max-height: 250px; overflow-y: auto;
}
.doc-selector label { display: flex; align-items: center; gap: 8px; font-weight: 500; font-size: 0.7rem; cursor: pointer; padding: 6px; border-radius: 4px; transition: var(--transition); }
.doc-selector label:hover { background: #eef2f6; }
.doc-selector input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }

.btn {
    padding: 12px 18px; border: none; border-radius: 60px; font-weight: 700; font-size: 0.85rem;
    cursor: pointer; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; justify-content: center; font-family: inherit; text-align: center;
}
.btn-primary { background: linear-gradient(135deg, #0a1a3a 0%, #1a3a6a 100%); color: white; width: 100%; }
.btn-student { background: var(--student-color); color: white; width: 100%; }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-success { background: var(--success); color: white; }
.btn-sm { padding: 8px 14px; font-size: 0.75rem; }
.btn-group { display: flex; gap: 8px; margin-top: 12px; width: 100%; flex-wrap: wrap; }
.btn-group .btn { flex: 1; min-width: 100px; }

.preview-panel { display: flex; flex-direction: column; min-height: 400px; width: 100%; }
.preview-actions { display: flex; gap: 8px; justify-content: flex-end; width: 100%; flex-wrap: wrap; }

#previewContainer {
    flex: 1; background: #64748b; border-radius: var(--radius-sm); border: 1px solid var(--border);
    padding: 20px; min-height: 350px; max-height: 850px; overflow-y: auto; overflow-x: auto; margin-top: 10px; width: 100%;
    display: flex; justify-content: center;
}

.doc-wrapper { display: flex; flex-direction: column; gap: 20px; align-items: center; width: 100%; }

.doc-page {
    background: white; width: 210mm; min-height: 297mm;
    padding: 20mm 20mm 18mm 20mm; box-shadow: 0 8px 24px rgba(0,0,0,0.25);
    position: relative; box-sizing: border-box; display: flex; flex-direction: column;
    justify-content: space-between; font-family: 'Merriweather', 'Times New Roman', serif;
    color: #0f172a; line-height: 1.7; font-size: 0.92rem;
}

.doc-bg-stamp {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    max-width: 60%; max-height: 60%; opacity: 0.08; pointer-events: none; object-fit: contain; z-index: 1;
}

.doc-header, .doc-ref-bar, .doc-paragraph, .doc-table, .id-card-a4-wrapper, .signature-block, .doc-footer {
    position: relative; z-index: 2;
}

.doc-header { border-bottom: 2.5px double var(--primary); padding-bottom: 12px; margin-bottom: 24px; position: relative; }
.doc-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 6px; }
.doc-header .doc-logo { max-height: 65px; max-width: 110px; object-fit: contain; flex-shrink: 0; }
.doc-header .official-seal-header { max-height: 65px; max-width: 65px; object-fit: contain; flex-shrink: 0; }
.doc-header .center-titles { text-align: center; flex: 1; }
.doc-header .doc-republic { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-light); font-family: 'Inter', sans-serif; font-weight: 600; }
.doc-header .doc-institution { font-family: 'Playfair Display', serif; font-size: 1.35rem; font-weight: 800; color: var(--primary); text-transform: uppercase; margin: 3px 0; letter-spacing: 0.5px; }
.doc-header .doc-institution-sub { font-size: 0.7rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; font-family: 'Inter', sans-serif; }
.doc-header .doc-title { font-size: 1.15rem; font-weight: 800; color: var(--primary); text-transform: uppercase; margin-top: 12px; font-family: 'Playfair Display', serif; text-decoration: underline; text-underline-offset: 5px; text-align: center; }

.doc-ref-bar { display: flex; justify-content: space-between; font-family: 'Inter', sans-serif; font-size: 0.72rem; color: var(--text-light); margin-bottom: 18px; border-bottom: 1px solid #e2e8f0; padding-bottom: 6px; }
.doc-footer { font-size: 0.65rem; color: var(--text-light); border-top: 1px solid var(--border); padding-top: 10px; display: flex; justify-content: space-between; font-family: 'Inter', sans-serif; }

.doc-info-box {
    border: 1.5px solid var(--primary);
    border-radius: 6px;
    padding: 12px 15px;
    margin-bottom: 16px;
    background: #f8fafc;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 16px;
}
.doc-info-box.single-col { grid-template-columns: 1fr; }
.doc-info-box div { display: flex; justify-content: space-between; border-bottom: 1px dotted #cbd5e1; padding-bottom: 4px; }
.doc-info-box div span:first-child { font-weight: 600; color: var(--text-light); }
.doc-info-box div span:last-child { font-weight: 700; color: var(--primary); text-align: right; }

.doc-table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.8rem; font-family: 'Inter', sans-serif; }
.doc-table th, .doc-table td { border: 1px solid #334155; padding: 8px 10px; text-align: left; }
.doc-table th { background: #0a1a3a; color: white; font-weight: 700; text-transform: uppercase; font-size: 0.68rem; letter-spacing: 0.5px; }
.doc-table tr:nth-child(even) { background: #f8fafc; }

.doc-paragraph { margin-bottom: 14px; text-align: justify; text-indent: 2.5em; font-size: 0.92rem; line-height: 1.8; }

.id-card-a4-wrapper { text-align: center; margin: 20px 0; }
.id-card-a4 {
    width: 85.6mm; height: 110mm;
    border: 2px solid var(--primary); border-radius: 10px; padding: 12px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    margin: 0 auto; box-shadow: 0 4px 12px rgba(0,0,0,0.08); position: relative;
    display: flex; flex-direction: column; justify-content: space-between; box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}
.id-card-a4 .id-card-header { text-align: center; border-bottom: 1px solid var(--accent); padding-bottom: 4px; }
.id-card-a4 .id-card-header h4 { font-size: 0.65rem; color: var(--primary); font-family: 'Playfair Display', serif; text-transform: uppercase; font-weight: 800; }
.id-card-a4 .id-photo { width: 70px; height: 70px; border-radius: 6px; object-fit: cover; border: 2px solid var(--primary); margin: 6px auto 4px; display: block; }
.id-card-a4 .id-name { text-align: center; font-weight: 800; font-size: 0.85rem; color: var(--primary); font-family: 'Playfair Display', serif; line-height: 1.2; }
.id-card-a4 .id-sub { text-align: center; font-size: 0.65rem; font-weight: 700; color: var(--accent); text-transform: uppercase; margin-bottom: 6px; }
.id-card-a4 .id-details { font-size: 0.62rem; text-align: left; border-top: 1px solid #e2e8f0; padding-top: 6px; color: #334155; }
.id-card-a4 .id-barcode { text-align: center; margin-top: 4px; background: #0f172a; color: white; font-family: 'Courier New', monospace; font-size: 0.55rem; letter-spacing: 2px; padding: 2px 0; }

.signature-block { margin-top: 30px; border-top: 1px dashed #cbd5e1; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; font-family: 'Inter', sans-serif; }
.signature-block .sig { text-align: center; flex: 1; }
.signature-block .sig .sig-box-wrapper { position: relative; display: inline-block; margin: 0 auto; min-height: 40px; width: 100%; }
.signature-block .sig .sig-name { font-weight: 700; font-size: 0.88rem; font-family: 'Playfair Display', serif; position: relative; z-index: 1; margin: 0; }
.signature-block .sig .sig-img { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); max-height: 48px; max-width: 150px; object-fit: contain; z-index: 2; pointer-events: none; }
.signature-block .sig .sig-line { display: block; width: 170px; border-bottom: 1.5px solid #0f172a; margin: 0 auto 4px auto; }
.signature-block .sig .sig-label { font-size: 0.65rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.5px; }

.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 10000; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 12px 20px; border-radius: var(--radius-sm); color: white; font-weight: 600; font-size: 0.85rem; background: var(--success); box-shadow: var(--shadow); }

@media (max-width: 1024px) { .generator-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) {
    .form-row, .form-row-3 { grid-template-columns: 1fr; gap: 8px; }
    .header { padding: 16px 12px; }
    .panel { padding: 12px; }
    .doc-selector { grid-template-columns: 1fr; max-height: 200px; }
    #previewContainer { padding: 10px; }
}

@media print {
    @page { size: A4 portrait; margin: 0; }
    body, html { background: white !important; margin: 0 !important; padding: 0 !important; width: 100% !important; height: auto !important; }
    .header, .tabs, #formPanel, .panel-title, .preview-actions, .toast-container { display: none !important; }
    .generator-grid, .container, .preview-panel { display: block !important; width: 100% !important; margin: 0 !important; padding: 0 !important; border: none !important; box-shadow: none !important; background: transparent !important; }
    #previewContainer { background: transparent !important; padding: 0 !important; margin: 0 !important; border: none !important; box-shadow: none !important; overflow: visible !important; max-height: none !important; height: auto !important; display: block !important; }
    .doc-wrapper { display: block !important; width: 100% !important; }
    .doc-page { box-shadow: none !important; margin: 0 !important; width: 210mm !important; height: 297mm !important; min-height: 297mm !important; padding: 20mm 20mm 18mm 20mm !important; page-break-after: always !important; page-break-inside: avoid !important; border: none !important; box-sizing: border-box !important; }
}