/* ==========================================================================
   EchoRate — Bilingual Audio Evaluation Portal (IIIT Research)
   Universal Fluid Responsive Design System
   ========================================================================== */

:root {
  /* Core Colors */
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: #EFF6FF;
  --primary-border: #BFDBFE;
  
  --admin-blue: #0284C7;
  --admin-blue-light: #F0F9FF;
  
  --success: #16A34A;
  --success-hover: #15803D;
  --success-light: #F0FDF4;
  --success-border: #BBF7D0;
  
  --secondary: #7C3AED;
  --secondary-hover: #6D28D9;
  --secondary-light: #F5F3FF;
  --secondary-border: #DDD6FE;

  --sidebar-bg: #0B132B;
  --sidebar-hover: #1C2541;
  --sidebar-active: #2563EB;
  --sidebar-text: #94A3B8;
  --sidebar-text-active: #FFFFFF;

  --bg-main: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-muted: #F1F5F9;
  
  --border-color: #E2E8F0;
  --border-hover: #CBD5E1;
  --border-active: #94A3B8;
  
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --text-white: #FFFFFF;
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-subtle: 0 1px 3px 0 rgba(15, 23, 42, 0.04), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.03);
  --shadow-elevated: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-bottom-bar: 0 -4px 16px rgba(15, 23, 42, 0.06);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* Reset & Fluid Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14.5px;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  width: 100%;
  min-height: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background-color: var(--bg-main);
  line-height: 1.5;
  width: 100%;
  overflow-x: hidden;
  position: relative;
}

.hidden {
  display: none !important;
}

/* Fluid App Containers */
.app-viewport-wrapper {
  width: 100%;
  min-height: 100vh;
}

.app-container {
  width: 100%;
  min-height: 100vh;
}

/* Page Transitions: strictly hide inactive pages so elements (like bottom bars) never leak */
.page-view {
  display: none !important;
  width: 100%;
}

.page-view.active {
  display: flex !important;
  width: 100%;
}

/* ==========================================================================
   PAGE 1: AUTH / LOGIN & REGISTRATION
   ========================================================================== */
#login-page {
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 24px 16px;
  background: radial-gradient(circle at 50% 20%, #EEF2FF 0%, #F8FAFC 70%);
}

.login-layout-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

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

.login-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.portal-brand-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.portal-brand-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  font-weight: 500;
}

.portal-brand-motto {
  font-size: 11.5px;
  color: #64748B;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 2px;
}

.login-card {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 26px 22px;
  box-shadow: 0 10px 30px -5px rgba(37, 99, 235, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
}

/* Role Switcher Tabs (User vs Admin) */
.role-tabs-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #F1F5F9;
  padding: 4px;
  border-radius: var(--radius-lg);
  gap: 4px;
  margin-bottom: 20px;
}

.role-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 14px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.role-tab:hover {
  color: var(--text-primary);
}

.role-tab.active {
  background: #FFFFFF;
  color: var(--primary);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.06);
}

#tab-role-admin.active {
  background: #2563EB;
  color: #FFFFFF;
}

.card-intro {
  margin-bottom: 16px;
}

.auth-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.auth-subtitle {
  font-size: 12.5px;
  color: var(--text-secondary);
}

/* User Sub-toggle (Sign In vs Register) */
.user-action-toggle {
  display: flex;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 3px;
  margin-bottom: 18px;
}

.user-toggle-btn {
  flex: 1;
  padding: 7px 10px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  text-align: center;
}

.user-toggle-btn.active {
  background: #FFFFFF;
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Form Groups & Inputs */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-label-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 10px 12px 10px 38px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-primary);
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: all 0.2s ease;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.password-toggle-btn {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
}

.password-toggle-btn:hover {
  color: var(--text-primary);
}

.btn-primary {
  width: 100%;
  padding: 11px 16px;
  background: var(--primary);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 2px 5px rgba(37, 99, 235, 0.2);
  font-family: inherit;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  padding: 9px 14px;
  background: #FFFFFF;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-secondary:hover {
  background: var(--bg-muted);
  border-color: var(--border-hover);
}

.login-quick-evaluators {
  font-size: 11.5px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.quick-login-btn {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 11.5px;
  font-weight: 600;
  text-decoration: underline;
  font-family: inherit;
}

/* Admin Auth Notice & Autofill Card */
.admin-notice-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #F0F9FF;
  border: 1px solid #BAE6FD;
  color: #0369A1;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 500;
  margin-bottom: 14px;
}

.admin-credentials-card {
  margin-top: 16px;
  padding: 12px 14px;
  background: #F8FAFC;
  border: 1px dashed #CBD5E1;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cred-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.cred-title {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.cred-badge {
  font-size: 9.5px;
  font-weight: 700;
  background: #DCFCE7;
  color: #166534;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.cred-row {
  display: flex;
  font-size: 11.5px;
  gap: 8px;
}

.cred-lbl {
  color: var(--text-secondary);
  width: 65px;
}

.cred-val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--primary);
}

.btn-autofill {
  margin-top: 4px;
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-autofill:hover {
  background: #EFF6FF;
}

.login-footer {
  text-align: center;
  font-size: 11.5px;
  color: var(--text-muted);
}


/* ==========================================================================
   PAGE 2: ADMIN PORTAL
   ========================================================================== */
#admin-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #F8FAFC;
  width: 100%;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-color);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-subtle);
  width: 100%;
  gap: 10px;
}

.admin-topbar-brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand-main {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.3px;
}

.brand-sub {
  font-size: 11.5px;
  color: var(--text-secondary);
  font-weight: 500;
}

.admin-topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-profile-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  padding: 5px 10px;
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-primary);
}

.btn-topbar-evaluator {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  padding: 5px 10px;
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-topbar-evaluator:hover {
  background: #DBEAFE;
}

.btn-topbar-logout {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #FEF2F2;
  color: #DC2626;
  border: 1.5px solid #FECACA;
  padding: 5px 11px;
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.btn-topbar-logout:hover {
  background: #FEE2E2;
}

/* Admin Body Layout: Sidebar + Viewport */
.admin-body-layout {
  display: flex;
  flex: 1;
  width: 100%;
}

.admin-sidebar {
  width: 200px;
  background: var(--sidebar-bg);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 10px;
  border-right: 1px solid #1E293B;
}

.admin-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.admin-nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--sidebar-text);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  font-family: inherit;
}

.admin-nav-item:hover {
  background: var(--sidebar-hover);
  color: #FFFFFF;
}

.admin-nav-item.active {
  background: var(--sidebar-active);
  color: var(--sidebar-text-active);
  font-weight: 600;
}

.admin-sidebar-footer {
  padding: 10px 6px 4px 6px;
  border-top: 1px solid #1E293B;
}

.system-status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #94A3B8;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: #22C55E;
}

/* Admin Content Viewport */
.admin-tab-content-area {
  flex: 1;
  padding: 20px 24px 24px 24px;
  overflow-y: auto;
  width: 100%;
}

.admin-subview {
  display: none;
  flex-direction: column;
  gap: 18px;
  width: 100%;
}

.admin-subview.active {
  display: flex;
}

.admin-view-header {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.view-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.view-desc {
  font-size: 12px;
  color: var(--text-secondary);
}

/* 4 Summary Stat Cards */
.stats-overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  width: 100%;
}

.stat-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-subtle);
}

.stat-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-users { background: #EFF6FF; color: #2563EB; }
.icon-samples { background: #F5F3FF; color: #7C3AED; }
.icon-evals { background: #F0FDF4; color: #16A34A; }
.icon-progress { background: #FAF5FF; }

.circular-progress-mini {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circular-progress-mini svg {
  transform: rotate(-90deg);
}

.progress-bg {
  fill: none;
  stroke: #E2E8F0;
  stroke-width: 3.5;
}

.progress-bar-circle {
  fill: none;
  stroke: #7C3AED;
  stroke-width: 3.5;
  stroke-linecap: round;
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}

.stat-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-meta {
  font-size: 10.5px;
  color: var(--text-muted);
}

/* Dashboard Split Grid */
.dashboard-split-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 18px;
  width: 100%;
}

.admin-card-section {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.admin-card-section.no-pad {
  padding: 0;
  overflow: hidden;
}

.section-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.btn-link-action {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.quick-action-btns-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-act-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  font-family: inherit;
  width: 100%;
}

.quick-act-btn:hover {
  border-color: var(--primary);
  background: #F8FAFC;
}

.quick-act-btn.primary {
  background: #2563EB;
  border-color: #2563EB;
  color: #FFFFFF;
}

.quick-act-btn.primary .quick-act-title { color: #FFFFFF; }
.quick-act-btn.primary .quick-act-subtitle { color: #DBEAFE; }
.quick-act-btn.primary .quick-act-icon { background: rgba(255, 255, 255, 0.2); color: #FFFFFF; }

.quick-act-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: #EFF6FF;
  color: #2563EB;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quick-act-info {
  display: flex;
  flex-direction: column;
}

.quick-act-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.quick-act-subtitle {
  font-size: 10.5px;
  color: var(--text-secondary);
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
  min-width: 540px;
}

.data-table th {
  background: #F8FAFC;
  padding: 9px 12px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 11px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

.score-chip-group {
  display: inline-flex;
  gap: 3px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 11px;
}

.score-num {
  padding: 1px 5px;
  background: #F1F5F9;
  border-radius: var(--radius-sm);
  color: #334155;
}

.badge-status-active {
  background: #DCFCE7;
  color: #166534;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-size: 10.5px;
  font-weight: 600;
}

.user-progress-cell {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
}

.table-progress-track {
  flex: 1;
  height: 5px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.table-progress-fill {
  height: 100%;
  background: var(--primary);
}

.table-progress-text {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 34px;
  text-align: right;
}

.table-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 200px;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 10px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 7px 10px 7px 32px;
  font-size: 12px;
  font-family: inherit;
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
}

.search-input:focus {
  border-color: var(--primary);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-filter {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
}

.form-select-inline {
  padding: 7px 10px;
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
  cursor: pointer;
}

.table-pagination-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-top: 1px solid var(--border-color);
  background: #FFFFFF;
  flex-wrap: wrap;
  gap: 8px;
}

.pagination-info {
  font-size: 11px;
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 3px;
}

.page-btn {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--border-color);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
}

.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #FFFFFF;
}

.page-dots {
  padding: 0 3px;
  color: var(--text-muted);
  font-size: 11px;
}


/* ==========================================================================
   DATASET UPLOAD PAGE
   ========================================================================== */
.dataset-upload-selector-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 8px 14px;
  flex-wrap: wrap;
}

.upload-mode-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.format-pill-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.format-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
}

.format-pill.active {
  background: var(--primary-light);
  border-color: var(--primary-border);
  color: var(--primary);
}

.dataset-upload-card {
  background: #FFFFFF;
  border: 2px dashed #BFDBFE;
  border-radius: var(--radius-xl);
  padding: 35px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
}

.dataset-upload-card:hover, .dataset-upload-card.drag-over {
  border-color: var(--primary);
  background: #F0F7FF;
}

.hidden-file-input { display: none; }

.upload-dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  max-width: 440px;
  margin: 0 auto;
}

.upload-folder-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: #EFF6FF;
  display: flex;
  align-items: center;
  justify-content: center;
}

.upload-headline {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.upload-subtext {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.upload-buttons-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-upload-cta {
  width: auto;
  padding: 9px 18px;
}

.drag-drop-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.dataset-info-banner {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.info-icon-badge {
  color: var(--primary);
  margin-top: 1px;
}

.info-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-title {
  font-size: 12.5px;
  font-weight: 700;
  color: #1E40AF;
}

.info-list {
  font-size: 11.5px;
  color: #1E3A8A;
  list-style: disc;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.badge-counter {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.export-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.export-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.export-card-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.export-card-icon.csv-color { background: #F0FDF4; color: #16A34A; }
.export-card-icon.json-color { background: #FAF5FF; color: #7C3AED; }

.export-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.export-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
  flex: 1;
}

.settings-form-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 760px;
}

.settings-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.settings-card-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.settings-card-desc {
  font-size: 11.5px;
  color: var(--text-secondary);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.weights-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.weight-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 10px;
  background: #F8FAFC;
  border-radius: var(--radius-sm);
  font-size: 12px;
}


/* ==========================================================================
   PAGE 3: AUDIO EVALUATION PAGE (USER VIEW)
   ========================================================================== */
#eval-page {
  width: 100%;
  display: flex;
  flex-direction: column;
  background: #F8FAFC;
  min-height: 100vh;
}

/* Evaluation Top Navigation Bar */
.eval-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-subtle);
  width: 100%;
  gap: 10px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.brand-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.3px;
}

.brand-tagline {
  font-size: 11px;
  color: var(--text-secondary);
  padding-left: 8px;
  border-left: 1px solid var(--border-color);
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sample-index-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.evaluated-status-badge {
  font-size: 10.5px;
  font-weight: 600;
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #BBF7D0;
  padding: 1px 7px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.evaluated-status-badge.auto-saved {
  background: #EFF6FF;
  color: #1D4ED8;
  border-color: #BFDBFE;
}


.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.user-email-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #F1F5F9;
  border: 1px solid var(--border-color);
  padding: 4px 9px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
}

.nav-nav-buttons {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 9px;
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s ease;
}

.nav-btn:hover:not(:disabled) {
  background: var(--bg-muted);
}

.nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Evaluation Main Body Container */
.eval-content {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 16px 65px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sample-context-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-subtle);
  gap: 10px;
}

.context-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sample-domain-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.sample-domain-desc {
  font-size: 11.5px;
  color: var(--text-secondary);
}

.sample-id-tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 3px 8px;
  border-radius: var(--radius-md);
  white-space: nowrap;
}

/* Comparison Grid: Desktop 2 cols side-by-side; Mobile 1 col stacked */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: 100%;
}

.comparison-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

/* Audio Player Card */
.audio-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  box-shadow: var(--shadow-subtle);
  width: 100%;
}

.card-audio-a {
  border-top: 3.5px solid #2563EB;
}

.card-audio-b {
  border-top: 3.5px solid #7C3AED;
}

.audio-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 8px;
}

.audio-title-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.audio-badge-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.audio-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.audio-lang-pill {
  font-size: 10px;
  font-weight: 600;
  background: #F1F5F9;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  color: #475569;
}

.audio-speaker-meta {
  font-size: 11px;
  color: var(--text-secondary);
}

.played-status-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 600;
  color: #94A3B8;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.played-status-indicator.played {
  color: #16A34A;
  background: #F0FDF4;
  border-color: #BBF7D0;
}

.audio-controls-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.play-toggle-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-audio-b .play-toggle-btn {
  background: #7C3AED;
}

.replay-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: #F1F5F9;
  color: #475569;
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.seek-track-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 80px;
}

.seek-slider {
  width: 100%;
  height: 5px;
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
  accent-color: var(--primary);
}

.card-audio-b .seek-slider {
  accent-color: #7C3AED;
}

.time-display {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Transcript Card */
.transcript-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.transcript-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.transcript-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.transcript-lang-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.transcript-box {
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  word-break: break-word;
  overflow-wrap: break-word;
}

.transcript-native {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
}

.transcript-phonetic {
  font-size: 11px;
  color: var(--text-secondary);
  font-style: italic;
  font-family: var(--font-mono);
  line-height: 1.4;
}

.transcript-translation {
  font-size: 11px;
  color: #475569;
  border-top: 1px dashed var(--border-color);
  padding-top: 6px;
  line-height: 1.4;
}

/* Evaluation Metrics Card */
.metrics-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  box-shadow: var(--shadow-subtle);
  width: 100%;
}

.metrics-card-header {
  margin-bottom: 12px;
}

.metrics-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.metrics-subtitle {
  font-size: 11.5px;
  color: var(--text-secondary);
}

.metrics-table {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  gap: 12px;
  width: 100%;
}

.metric-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.metric-name {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.metric-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
}

.metric-score-select-wrapper {
  position: relative;
  min-width: 190px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.metric-number-input {
  width: 120px;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-mono, monospace);
  color: var(--text-primary);
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: all 0.15s ease;
  text-align: center;
}

.metric-number-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.metric-number-input.has-value {
  border-color: #2563EB;
  background: #EFF6FF;
  color: #1D4ED8;
}

.metric-scale-hint {
  font-size: 11px;
  font-weight: 600;
  color: #64748B;
  margin-left: 6px;
}

.metric-select {
  width: 100%;
  padding: 7px 26px 7px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  background: #FFFFFF;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  appearance: none;
  font-family: inherit;
  transition: all 0.15s ease;
}

.metric-select.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

.select-arrow {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  font-size: 8px;
  color: var(--text-muted);
}

.btn-approve-user {
  background: #ECFDF5;
  color: #059669;
  border: 1px solid #A7F3D0;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-right: 6px;
}

.btn-approve-user:hover {
  background: #D1FAE5;
}

.btn-reject-user {
  background: #FEF2F2;
  color: #DC2626;
  border: 1px solid #FECACA;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-reject-user:hover {
  background: #FEE2E2;
}

/* Sticky Bottom Action Bar */
.bottom-action-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-color);
  padding: 10px 20px;
  box-shadow: var(--shadow-bottom-bar);
  width: 100%;
}

.bottom-action-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.action-checklist {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  color: #94A3B8;
}

.checklist-icon {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: #E2E8F0;
  color: #94A3B8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
}

.checklist-item.completed {
  color: #16A34A;
}

.checklist-item.completed .checklist-icon {
  background: #16A34A;
  color: #FFFFFF;
}

.btn-submit-eval {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: #16A34A;
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-submit-eval:disabled {
  background: #CBD5E1;
  color: #64748B;
  cursor: not-allowed;
}

/* Toast */
.toast-notification {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 1000;
  background: #0F172A;
  color: #FFFFFF;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.25s ease;
  max-width: calc(100vw - 40px);
}

.toast-notification.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.toast-icon { color: #4ADE80; flex-shrink: 0; }


/* ==========================================================================
   PERFECT MOBILE & TABLET RESPONSIVENESS (< 860px and < 640px)
   ========================================================================== */
@media (max-width: 860px) {
  .admin-body-layout {
    flex-direction: column;
  }

  .admin-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    padding: 6px 12px;
    border-right: none;
    border-bottom: 1px solid #1E293B;
  }

  .admin-nav-list {
    flex-direction: row;
    gap: 6px;
    width: 100%;
  }

  .admin-nav-item {
    padding: 6px 10px;
    white-space: nowrap;
  }

  .admin-sidebar-footer {
    display: none;
  }

  .admin-tab-content-area {
    padding: 16px 14px 60px 14px;
  }

  .dashboard-split-grid {
    grid-template-columns: 1fr;
  }

  /* Evaluation page on tablet/mobile */
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 14px;
  }

  /* Evaluation Navbar Mobile Layout: Stacks into 2 compact rows */
  .eval-navbar {
    flex-direction: column;
    align-items: stretch;
    padding: 8px 12px;
    gap: 6px;
  }

  .eval-navbar > .nav-left {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .eval-navbar > .nav-center {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    border-top: 1px solid #F1F5F9;
    padding-top: 4px;
  }

  .eval-navbar > .nav-right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 6px;
  }

  .sample-context-card {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Metric Rows on Mobile: Stack description over select for 100% full width dropdown */
  .metric-row {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px;
  }

  .metric-score-select-wrapper {
    width: 100%;
    min-width: 100%;
  }

  .metric-select {
    width: 100%;
    padding: 9px 30px 9px 10px;
    font-size: 12.5px;
  }

  /* Sticky Bottom Action Bar on Mobile */
  .bottom-action-bar {
    padding: 8px 12px;
  }

  .bottom-action-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .action-checklist {
    justify-content: space-between;
    width: 100%;
  }

  .checklist-item {
    font-size: 10px;
  }

  .btn-submit-eval {
    width: 100%;
    justify-content: center;
    padding: 11px;
    font-size: 13.5px;
  }

  .admin-topbar {
    padding: 8px 12px;
  }
}

/* Modal Overlay & Dialog Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-content {
  background: #FFFFFF;
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color, #E2E8F0);
  max-width: 90vw;
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.badge-status-archived {
  background: #F1F5F9;
  color: #64748B;
  padding: 2px 7px;
  border-radius: var(--radius-full, 9999px);
  font-size: 10.5px;
  font-weight: 600;
}