/* ========================================================
   CSS CHO KẾ TOÁN MINI APP (VER 2.0 - MEDICAR VIETNAM)
   Nhận diện thương hiệu chuẩn Medicar:
   - Nền trang (--bg): #f7f2ea (tông giấy ấm)
   - Thẻ và bảng (--paper): #fffaf2 (giấy trắng ngà)
   - Chữ chính (--ink): #171615 (nội dung sắc nét)
   - Chữ phụ (--muted): #6f675d (mô tả, chú thích)
   - Màu nhấn (--accent): #c86b36 (cam đất ký tên)
   - Khối tối (--dark): #26343d (xanh than tiêu đề mạnh)
   - Trạng thái đạt (--green): #1f6f50
   - Trạng thái chưa đạt (--red): #9d3d35
   - Trạng thái cảnh báo (--amber): #9a6517
   ======================================================== */

:root {
  /* LIGHT MODE CHUẨN MEDICAR (MẶC ĐỊNH) */
  --bg-main: #f7f2ea;
  --bg-card: #fffaf2;
  --bg-card-sub: #f2ece2;
  --bg-card-nested: #e9e2d6;
  --border-color: #e2dad0;
  --border-focus: #c86b36;

  --text-main: #171615;
  --text-muted: #6f675d;
  --text-dim: #8c8275;

  --medicar-accent: #c86b36;
  --medicar-accent-hover: #b15b2a;
  --medicar-accent-light: rgba(200, 107, 54, 0.12);

  --medicar-dark: #26343d;
  --medicar-dark-sub: #1e2a32;

  --status-pass: #1f6f50;
  --status-pass-bg: rgba(31, 111, 80, 0.12);
  --status-pass-border: #1f6f50;

  --status-warn: #9a6517;
  --status-warn-bg: rgba(154, 101, 23, 0.12);
  --status-warn-border: #9a6517;

  --status-fail: #9d3d35;
  --status-fail-bg: rgba(157, 61, 53, 0.12);
  --status-fail-border: #9d3d35;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 24px;

  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Plus Jakarta Sans", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", monospace;
  --card-shadow: 0 4px 16px rgba(38, 52, 61, 0.06);
}

/* CHẾ ĐỘ TỐI (DARK MODE TÙY CHỌN) */
[data-theme="dark"] {
  --bg-main: #0e1720;
  --bg-card: #15222e;
  --bg-card-sub: #1c2c3b;
  --bg-card-nested: #111b24;
  --border-color: #273948;
  --border-focus: #c86b36;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --status-pass-bg: rgba(31, 111, 80, 0.22);
  --status-warn-bg: rgba(154, 101, 23, 0.22);
  --status-fail-bg: rgba(157, 61, 53, 0.22);
  --card-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  padding: 24px;
  min-height: 100vh;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.app-container {
  max-width: 1650px;
  margin: 0 auto;
}

/* ========================================================
   HEADER THƯƠNG HIỆU MEDICAR
   ======================================================== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--medicar-dark);
  border: 1px solid var(--medicar-dark-sub);
  padding: 20px 28px;
  border-radius: var(--radius-xl);
  margin-bottom: 22px;
  box-shadow: 0 8px 24px rgba(38, 52, 61, 0.16);
  color: #ffffff;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-logo-medicar {
  background: var(--medicar-accent);
  color: #ffffff;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.45rem;
  box-shadow: 0 4px 12px rgba(200, 107, 54, 0.35);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff;
}

.badge-tagline {
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(200, 107, 54, 0.25);
  color: #ffb88c;
  border: 1px solid var(--medicar-accent);
  padding: 3px 10px;
  border-radius: 20px;
}

.brand-subtitle {
  font-size: 0.88rem;
  color: #cbd5e1;
  margin-top: 3px;
}

.brand-slogan {
  font-size: 0.8rem;
  color: #f1b28e;
  font-style: italic;
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sample-loader {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--medicar-dark-sub);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid #374b5a;
  font-size: 0.86rem;
  color: #e2e8f0;
}

/* ========================================================
   NÚT BẤM & INPUTS
   ======================================================== */
.btn {
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--medicar-accent);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(200, 107, 54, 0.25);
}
.btn-primary:hover:not(:disabled) {
  background: var(--medicar-accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card-sub);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-card-nested);
}

.btn-outline {
  background: transparent;
  color: var(--medicar-accent);
  border: 1px solid var(--medicar-accent);
}
.btn-outline:hover:not(:disabled) {
  background: var(--medicar-accent-light);
}

.btn-success {
  background: var(--status-pass);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(31, 111, 80, 0.25);
}
.btn-success:hover:not(:disabled) {
  background: #17583f;
}

.btn-ghost {
  background: transparent;
  color: #cbd5e1;
}
.btn-ghost:hover {
  color: #ffffff;
  background: var(--medicar-dark-sub);
}

.btn-theme-toggle {
  background: var(--medicar-dark-sub);
  color: #f8fafc;
  border: 1px solid #374b5a;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-theme-toggle:hover {
  background: #344857;
}

.select-styled, .input-styled {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.86rem;
  outline: none;
}
.select-styled:focus, .input-styled:focus {
  border-color: var(--border-focus);
}

/* ========================================================
   THẺ THỐNG KÊ (STATS GRID)
   ======================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--border-color);
}

.stat-label {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.2px;
}
.stat-value {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin: 4px 0;
}
.stat-sub {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.stat-pass::before { background: var(--status-pass); }
.stat-pass .stat-value { color: var(--status-pass); }

.stat-warning::before { background: var(--status-warn); }
.stat-warning .stat-value { color: var(--status-warn); }

.stat-fail::before { background: var(--status-fail); }
.stat-fail .stat-value { color: var(--status-fail); }

/* ========================================================
   BỐ CỤC CHÍNH (MAIN WORKSPACE)
   ======================================================== */
.main-layout {
  display: grid;
  grid-template-columns: 530px 1fr;
  gap: 22px;
  align-items: start;
}

.panel-pairs, .panel-results {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--card-shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.panel-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}
.panel-desc {
  font-size: 0.83rem;
  color: var(--text-muted);
}
.panel-tools {
  display: flex;
  gap: 10px;
}

/* BỘ LỌC HỒ SƠ VER 2 */
.filter-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  background: var(--bg-card-sub);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.filter-tab {
  flex: 1;
  text-align: center;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s ease;
}
.filter-tab:hover {
  color: var(--text-main);
}
.filter-tab.active {
  background: var(--medicar-accent);
  color: #ffffff;
}

/* ========================================================
   THẺ CẶP HỒ SƠ (PAIR CARDS)
   ======================================================== */
.pair-cards-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 72vh;
  overflow-y: auto;
  padding-right: 6px;
}

.pair-card {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: all 0.2s ease;
}
.pair-card:hover {
  border-color: #c86b36;
}
.pair-card.active {
  border-color: var(--medicar-accent);
  box-shadow: 0 0 0 2px rgba(200, 107, 54, 0.25);
  background: var(--bg-card);
}

.pair-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.pair-badge {
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--medicar-accent-light);
  color: var(--medicar-accent);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}

.drop-zones-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.drop-zone {
  border: 2px dashed var(--border-color);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--medicar-accent);
  background: var(--medicar-accent-light);
}

.drop-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 4px;
}
.drop-hint {
  font-size: 0.73rem;
  color: var(--text-dim);
}

.file-list-preview {
  margin-top: 8px;
  font-size: 0.76rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.file-item {
  background: var(--bg-card-nested);
  padding: 5px 8px;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-main);
}
.file-item .file-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 155px;
}

/* ========================================================
   BẢNG ĐỐI SOÁT & THẨM ĐỊNH (RESULTS PANEL)
   ======================================================== */
.results-display {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.empty-state {
  text-align: center;
  padding: 70px 20px;
  color: var(--text-muted);
}
.empty-icon {
  font-size: 3.2rem;
  margin-bottom: 12px;
}
.empty-state h3 {
  color: var(--text-main);
  font-size: 1.18rem;
  margin-bottom: 8px;
}

/* BANNER BÁO ĐỘNG */
.verdict-banner {
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.verdict-banner.banner-pass {
  background: var(--status-pass-bg);
  border: 1px solid var(--status-pass-border);
  color: var(--status-pass);
}
.verdict-banner.banner-warning {
  background: var(--status-warn-bg);
  border: 1px solid var(--status-warn-border);
  color: var(--status-warn);
}
.verdict-banner.banner-fail {
  background: var(--status-fail-bg);
  border: 1px solid var(--status-fail-border);
  color: var(--status-fail);
}

.verdict-title {
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}
.verdict-desc {
  font-size: 0.88rem;
  margin-top: 3px;
  color: var(--text-main);
}

/* BẢNG ĐỐI CHIẾU 3 CHIỀU (SIDE-BY-SIDE VER 2) */
.comparison-card {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
}
.comparison-title {
  font-size: 0.96rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  font-size: 0.86rem;
}
.comp-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 14px;
  border-radius: var(--radius-md);
}
.comp-box h4 {
  font-size: 0.85rem;
  color: var(--medicar-accent);
  margin-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

/* BẢNG CHECKLIST */
.audit-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}
.audit-table th {
  background: var(--bg-card-nested);
  color: var(--text-muted);
  text-align: left;
  padding: 11px 14px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}
.audit-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}
.audit-table tr:hover td {
  background: var(--bg-card-nested);
}

.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 4px;
  font-family: var(--font-mono);
}
.status-tag.tag-pass { background: var(--status-pass-bg); color: var(--status-pass); border: 1px solid var(--status-pass-border); }
.status-tag.tag-warning { background: var(--status-warn-bg); color: var(--status-warn); border: 1px solid var(--status-warn-border); }
.status-tag.tag-fail { background: var(--status-fail-bg); color: var(--status-fail); border: 1px solid var(--status-fail-border); }
.status-tag.tag-pending { background: var(--bg-card-nested); color: var(--text-muted); }

/* KHỐI GHI CHÚ KẾ TOÁN & HÀNH ĐỘNG NHANH VER 2 */
.memo-card {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
}
.memo-input {
  width: 100%;
  min-height: 70px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.86rem;
  resize: vertical;
  outline: none;
  margin: 10px 0;
}
.memo-input:focus {
  border-color: var(--border-focus);
}
.memo-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ========================================================
   MODAL
   ======================================================== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(23, 22, 21, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  backdrop-filter: blur(5px);
}
.modal-overlay.hidden { display: none; }

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 540px;
  max-width: 95vw;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  color: var(--text-main);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
}
.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.86rem;
  font-weight: 600;
}
.form-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
}
.btn-close {
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--text-muted);
  cursor: pointer;
}