/* ==========================================================================
   Design Tokens
   ========================================================================== */
:root {
  /* Colors */
  --c-bg: #f8fafc;
  --c-surface: #ffffff;
  --c-border: #e2e8f0;
  --c-border-hover: #cbd5e1;
  
  --c-text-main: #0f172a;
  --c-text-sub: #475569;
  --c-text-muted: #64748b;
  
  --c-primary: #2563eb;
  --c-primary-hover: #1d4ed8;
  --c-primary-soft: #eff6ff;
  
  --c-success: #059669;
  --c-success-soft: #ecfdf5;
  
  --c-warning: #d97706;
  --c-warning-soft: #fffbeb;
  
  --c-danger: #dc2626;
  --c-danger-soft: #fef2f2;
  
  --c-focus-ring: rgba(37, 99, 235, 0.25);
  
  /* Typography */
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* Shadows & Radii */
  --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-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  
  /* Transitions */
  --trans-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --trans-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-stack);
  background-color: var(--c-bg);
  color: var(--c-text-main);
  line-height: 1.5;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

button, input {
  font-family: inherit;
  font-size: inherit;
}

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--trans-fast);
}

a:hover {
  color: var(--c-primary-hover);
}

:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.hidden { display: none !important; }
.text-muted { color: var(--c-text-muted); }
.text-secondary { color: var(--c-text-sub); }
.mb-4 { margin-bottom: 16px; }
.mt-4 { margin-top: 16px; }
.w-full { width: 100%; }
.p-0 { padding: 0 !important; }
.border-0 { border: none !important; }
.h-full { height: 100%; }

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.app-header {
  background-color: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-logo {
  width: 28px;
  height: 28px;
  color: var(--c-primary);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-text h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text-main);
  line-height: 1.2;
}

.brand-sub {
  font-size: 12px;
  color: var(--c-text-muted);
}

.app-nav {
  display: flex;
  gap: 8px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 8px 12px;
  color: var(--c-text-muted);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--trans-fast);
}

.tab-btn svg {
  width: 18px;
  height: 18px;
}

.tab-btn:hover {
  color: var(--c-text-main);
  background-color: var(--c-bg);
}

.tab-btn.active {
  color: var(--c-primary);
  background-color: var(--c-primary-soft);
}


/* ==========================================================================
   Layout
   ========================================================================== */
.app-main {
  max-width: 1400px;
  margin: 24px auto;
  padding: 0 24px;
}

.tab-panel {
  display: none;
  animation: fadeIn var(--trans-base);
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Stats Grid
   ========================================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
}

.stat-card:hover {
  border-color: var(--c-border-hover);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg {
  width: 24px;
  height: 24px;
}

.stat-blue { background-color: var(--c-primary-soft); color: var(--c-primary); }
.stat-green { background-color: var(--c-success-soft); color: var(--c-success); }
.stat-amber { background-color: var(--c-warning-soft); color: var(--c-warning); }
.stat-violet { background-color: #f3e8ff; color: #9333ea; } /* Add purple explicitly */

.stat-info {
  flex: 1;
  min-width: 0;
}

.stat-label {
  font-size: 13px;
  color: var(--c-text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

.stat-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--c-text-main);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.stat-unit {
  font-size: 14px;
  font-weight: normal;
  color: var(--c-text-muted);
}

/* ==========================================================================
   Toolbar & Inputs
   ========================================================================== */
.panel-section {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.toolbar {
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 240px;
  max-width: 400px;
}

.search-box svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--c-text-muted);
}

.search-box input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--trans-fast);
  color: var(--c-text-main);
}

.search-box input::placeholder {
  color: var(--c-text-muted);
}

.search-box input:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-focus-ring);
}

.toolbar-info {
  margin-left: auto;
  font-size: 13px;
  color: var(--c-text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--trans-fast);
  line-height: 1.4;
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--c-primary);
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--c-primary-hover);
}

.btn-secondary {
  background-color: var(--c-surface);
  border-color: var(--c-border);
  color: var(--c-text-main);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--c-bg);
  border-color: var(--c-border-hover);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-md);
  color: var(--c-text-muted);
  background-color: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--trans-fast);
}

.btn-icon:hover {
  background-color: var(--c-bg);
  color: var(--c-primary);
  border-color: var(--c-border);
}

.btn-icon svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   Tables
   ========================================================================== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 12px 20px;
  border-bottom: 1px solid var(--c-border);
}

th {
  background-color: var(--c-bg);
  font-weight: 600;
  font-size: 12px;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

tbody tr {
  transition: background-color var(--trans-fast);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background-color: var(--c-primary-soft);
}

.col-code { width: 140px; font-variant-numeric: tabular-nums; }
.col-name { min-width: 200px; max-width: 320px; }
.col-unit { width: 80px; }
.col-num { width: 100px; text-align: right; font-variant-numeric: tabular-nums; }
.col-source { width: 180px; }
.col-size { width: 100px; text-align: right; font-variant-numeric: tabular-nums; }
.col-date { width: 180px; }
.col-action { width: 100px; text-align: right; }

th.col-num, th.col-size, th.col-action {
  text-align: right;
}

.code-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  background-color: var(--c-bg);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--c-border);
  color: var(--c-text-sub);
}

.source-file-cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.source-text {
  font-size: 13px;
  color: var(--c-text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

td.col-num {
  font-weight: 500;
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.pagination {
  padding: 16px 20px;
  border-top: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--c-surface);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.page-info {
  font-size: 14px;
  color: var(--c-text-sub);
  font-weight: 500;
}

/* ==========================================================================
   Match Layout & Cards
   ========================================================================== */
.match-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-header svg {
  width: 20px;
  height: 20px;
  color: var(--c-primary);
}

.card-header h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text-main);
  margin: 0;
}

.header-hint {
  margin-left: auto;
  font-size: 13px;
  color: var(--c-text-muted);
}

.card-body {
  padding: 20px;
}

/* ==========================================================================
   Upload & Progress
   ========================================================================== */
.upload-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

input[type="file"] {
  display: block;
  width: 100%;
  font-size: 14px;
  color: var(--c-text-sub);
  border: 1px dashed var(--c-border-hover);
  border-radius: var(--radius-md);
  padding: 12px;
  cursor: pointer;
  background-color: var(--c-bg);
  transition: all var(--trans-fast);
}

input[type="file"]:hover {
  border-color: var(--c-primary);
  background-color: var(--c-primary-soft);
}

input[type="file"]::file-selector-button {
  margin-right: 12px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background-color: var(--c-surface);
  color: var(--c-text-main);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--trans-fast);
}

input[type="file"]::file-selector-button:hover {
  background-color: var(--c-bg);
}

.divider {
  height: 1px;
  background-color: var(--c-border);
  margin: 20px 0;
}

.progress-box {
  margin-top: 16px;
  padding: 16px;
  background-color: var(--c-primary-soft);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-primary);
  font-weight: 500;
  font-size: 14px;
}

.spinner {
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
}

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

/* ==========================================================================
   Match Report
   ========================================================================== */
.report-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.report-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--c-border);
}

.report-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.report-label {
  color: var(--c-text-sub);
  font-size: 14px;
}

.report-value {
  font-weight: 600;
  font-size: 14px;
}

.val-default { color: var(--c-text-main); }
.val-highlight { color: var(--c-primary); font-size: 16px; }
.val-success { color: var(--c-success); }
.val-danger { color: var(--c-danger); }

/* ==========================================================================
   Badges
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: filter var(--trans-fast);
}

.badge:hover {
  filter: brightness(0.95);
}

.badge svg {
  width: 14px;
  height: 14px;
}

.badge-primary { background-color: var(--c-primary-soft); color: var(--c-primary); }
.badge-secondary { background-color: var(--c-bg); color: var(--c-text-sub); }
.badge-warning { background-color: var(--c-warning-soft); color: var(--c-warning); }
.badge-danger { background-color: var(--c-danger-soft); color: var(--c-danger); }

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--c-text-main);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  transition: all var(--trans-base);
  z-index: 100;
  font-size: 14px;
  font-weight: 500;
  transform: translateY(0);
  opacity: 1;
}

.toast.hidden {
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
}

.toast svg {
  width: 20px;
  height: 20px;
  color: var(--c-success);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 900px) {
  .match-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  
  .app-header .header-container {
    padding: 0 16px;
  }
  
  .app-main {
    padding: 0 16px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

@media (max-width: 600px) {
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box {
    max-width: none;
  }
  
  .toolbar-info {
    margin-left: 0;
    text-align: center;
    padding-top: 8px;
  }
  
  .brand-sub {
    display: none;
  }
  
  .tab-btn span {
    display: none; /* Icon only on mobile if you wrap text in span */
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}