@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --success-color: #10b981;
  --success-glow: rgba(16, 185, 129, 0.15);
  --warning-color: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.15);
  --error-color: #ef4444;
  --error-glow: rgba(239, 68, 68, 0.15);
  
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-title: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --sidebar-width: 320px;
  --header-height: 56px;
  --confirm-bar-height: 0px;
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --touch-min: 44px;
  --page-padding: 1rem;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

body.has-confirm-bar {
  --confirm-bar-height: 7.5rem;
  padding-bottom: calc(var(--confirm-bar-height) + var(--safe-bottom));
}

/* Scrollbar styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Header styling */
header {
  min-height: var(--header-height);
  background-color: rgba(30, 41, 59, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem var(--page-padding);
  padding-top: max(0.5rem, env(safe-area-inset-top, 0px));
  position: sticky;
  top: 0;
  z-index: 30;
  flex-shrink: 0;
}

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

.header-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: brightness(1.1);
  flex-shrink: 0;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-color), #60a5fa);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-family: var(--font-title);
  color: #fff;
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.logo-container > div {
  min-width: 0;
}

header h1 {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.logo-subtitle {
  display: none;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(255, 255, 255, 0.03);
  padding: 6px 10px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  max-width: min(52vw, 220px);
  flex-shrink: 0;
}

.user-badge-label {
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.user-badge-label strong {
  display: inline-block;
  max-width: 7rem;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

.user-badge .avatar-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success-color);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success-color);
}

.user-badge span {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.user-badge strong {
  color: var(--text-primary);
  font-weight: 500;
}

.user-badge a.change-user-btn {
  color: var(--accent-color);
  text-decoration: none;
  font-size: 0.8rem;
  margin-left: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.user-badge a.change-user-btn:hover {
  text-decoration: underline;
  opacity: 0.8;
}

/* Main Layout — mobile: list OR detail */
.app-container {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

.app-container .main-content {
  display: none;
  flex: 1;
  min-height: 0;
}

.app-container.section-open .sidebar {
  display: none;
}

.app-container.section-open .main-content {
  display: flex;
}

/* Sidebar */
.sidebar {
  width: 100%;
  background-color: rgba(30, 41, 59, 0.5);
  border-right: none;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.sidebar-title {
  padding: 1rem var(--page-padding);
  font-family: var(--font-title);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  flex-shrink: 0;
}

.sections-list {
  list-style: none;
  padding: 0.5rem var(--page-padding) 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.section-item {
  padding: 0.875rem 1rem;
  min-height: var(--touch-min);
  border-radius: var(--border-radius);
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.section-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

@media (hover: hover) {
  .section-item:hover {
    transform: translateY(-1px);
  }
}

.section-item.active {
  background-color: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: inset 0 0 10px rgba(59, 130, 246, 0.05);
}

.section-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 4px;
  background-color: var(--accent-color);
  box-shadow: 0 0 8px var(--accent-color);
}

.section-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.section-name {
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: capitalize;
  line-height: 1.3;
}

.badge {
  flex-shrink: 0;
  max-width: 42%;
  text-align: right;
  white-space: nowrap;
}

.badge-viewed {
  background-color: rgba(59, 130, 246, 0.12);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.section-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.badge-confirmed {
  background-color: var(--success-glow);
  color: var(--success-color);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-outdated {
  background-color: var(--warning-glow);
  color: var(--warning-color);
  border: 1px solid rgba(245, 158, 11, 0.2);
  animation: pulse-amber 2s infinite;
}

.badge-unconfirmed {
  background-color: var(--error-glow);
  color: var(--error-color);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

@keyframes pulse-amber {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* Main Content Area */
.main-content {
  flex-direction: column;
  background-color: rgba(15, 23, 42, 0.95);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  position: relative;
  min-height: 0;
}

.content-inner {
  flex: 1;
  padding: var(--page-padding);
  padding-bottom: calc(var(--page-padding) + var(--safe-bottom));
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.btn-back-mobile {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: var(--touch-min);
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  color: var(--accent-color);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
}

.document-header-row {
  gap: 0.75rem;
  flex-wrap: wrap;
}

.document-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 1.5rem;
}

.document-title {
  font-family: var(--font-title);
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: capitalize;
  margin-bottom: 0.35rem;
  line-height: 1.25;
  word-break: break-word;
}

.document-time {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.document-body-card {
  background-color: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  padding: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  flex: 1;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.document-content {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.65;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  background-color: rgba(15, 23, 42, 0.5);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  letter-spacing: 0.02em;
  margin: 0;
}

/* Sticky confirm bar */
.confirm-all-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 0.75rem var(--page-padding);
  padding-bottom: max(0.75rem, var(--safe-bottom));
  background: rgba(30, 41, 59, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.35);
}

.confirm-all-status {
  font-size: 0.85rem;
  line-height: 1.4;
}

.confirm-all-btn {
  width: 100%;
  min-height: var(--touch-min);
  justify-content: center;
  font-size: 0.9rem;
  padding: 12px 16px;
  text-align: center;
  line-height: 1.3;
}

/* Confirmation Container */
.confirmation-container {
  background-color: var(--bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.confirmation-message {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.confirmation-message i {
  font-size: 1.25rem;
}

.status-text-confirmed {
  color: var(--success-color);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.status-text-outdated {
  color: var(--warning-color);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.status-text-unconfirmed {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form Styles */
.confirm-form {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.form-group {
  position: relative;
}

.form-input {
  background-color: var(--bg-tertiary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  width: 250px;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

.btn {
  background: linear-gradient(135deg, var(--accent-color), #2563eb);
  color: #fff;
  border: none;
  padding: 10px 20px;
  min-height: var(--touch-min);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  background: linear-gradient(135deg, #4f46e5, var(--accent-color));
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.btn-success {
  background: linear-gradient(135deg, var(--success-color), #059669);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}
.btn-success:hover {
  background: linear-gradient(135deg, #10b981, #10b981);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35);
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning-color), #d97706);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}
.btn-warning:hover {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.35);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  box-shadow: none;
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

.btn-danger {
  background: linear-gradient(135deg, var(--error-color), #dc2626);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}
.btn-danger:hover {
  background: linear-gradient(135deg, #f87171, var(--error-color));
  box-shadow: 0 6px 16px rgba(239, 68, 68, 0.35);
}

/* User Identification Overlay Screen */
.overlay-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-primary);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  margin-bottom: 1rem;
}

.login-error {
  color: var(--error-color);
  font-size: 0.875rem;
  text-align: left;
  padding: 0.5rem 0.75rem;
  background: var(--error-glow);
  border-radius: 8px;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.login-card {
  background-color: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 2rem 1.25rem;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: fade-in-up 0.5s ease-out;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent-color), #60a5fa);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: bold;
  color: #fff;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.3);
}

.login-card h2 {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.login-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 2rem;
}

.login-card form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.login-card .form-input {
  width: 100%;
  padding: 12px 18px;
  font-size: 1rem;
}

.login-card .btn {
  width: 100%;
  padding: 12px;
  justify-content: center;
  font-size: 1rem;
}

/* Admin Dashboard */
.admin-tabs {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem var(--page-padding);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(30, 41, 59, 0.5);
  flex-shrink: 0;
}

.admin-tabs::-webkit-scrollbar {
  display: none;
}

.admin-tab {
  flex: 1 0 auto;
  min-height: var(--touch-min);
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  touch-action: manipulation;
}

.admin-tab.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.35);
  color: var(--text-primary);
}

.admin-main {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--page-padding);
  padding-bottom: calc(var(--page-padding) + var(--safe-bottom));
}

.admin-tab-content {
  display: none;
}

.admin-tab-content.active {
  display: block;
}

.header-link-btn {
  font-size: 0.8rem;
  padding: 8px 12px;
  white-space: nowrap;
}

.admin-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  height: calc(100vh - var(--header-height));
  padding: 2rem;
  overflow: hidden;
}

.admin-panel {
  background-color: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.panel-header {
  padding: 1rem var(--page-padding);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  background-color: rgba(30, 41, 59, 0.3);
}

.panel-header .btn {
  flex-shrink: 0;
  font-size: 0.8rem;
  padding: 8px 12px;
  min-height: 40px;
}

.panel-title {
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.3;
}

.panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

/* Admin lists & forms */
.admin-sections-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-sec-item {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--border-radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
  transition: var(--transition);
}

.admin-sec-item > div:first-child {
  min-width: 0;
}

.admin-sec-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-sec-actions .btn {
  flex: 1;
  min-width: calc(50% - 4px);
}

.admin-sec-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.admin-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-form label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.admin-form input, .admin-form textarea {
  background-color: var(--bg-tertiary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 12px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
}

.admin-form textarea {
  font-family: var(--font-mono);
  resize: vertical;
  min-height: 150px;
}

.admin-form input:focus, .admin-form textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

/* Tables styling for confirmation matrix */
.table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.table-responsive table {
  min-width: 520px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

th {
  background-color: rgba(30, 41, 59, 0.8);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  white-space: nowrap;
}

td {
  padding: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: #e2e8f0;
  vertical-align: top;
}

tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Modal styling */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  width: 100%;
  max-width: 600px;
  max-height: min(92dvh, 720px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-backdrop.show .modal-card {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 600;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

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

.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.modal-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}

.modal-footer .btn {
  flex: 1;
  min-width: 120px;
}

/* Empty states */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 2px dashed rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius);
}

.empty-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

/* Utility classes */
.flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.w-full { width: 100%; }
.mt-4 { margin-top: 1rem; }
.text-muted { color: var(--text-secondary); }

/* Icons placeholder helper (FontAwesome alternative with pure CSS or simple icons) */
.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  stroke-width: 0;
  stroke: currentColor;
  fill: currentColor;
}

/* ========== Tablet (600px+) ========== */
@media (min-width: 600px) {
  :root {
    --page-padding: 1.25rem;
    --header-height: 64px;
  }

  header h1 {
    font-size: 1.15rem;
  }

  .logo-subtitle {
    display: block;
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-title);
  }

  .header-logo {
    width: 40px;
    height: 40px;
  }

  .user-badge {
    max-width: none;
  }

  .user-badge-label strong {
    max-width: none;
  }

  .document-title {
    font-size: 1.65rem;
  }

  .document-content {
    font-size: 1rem;
    padding: 1.25rem;
  }

  .document-body-card {
    padding: 1.5rem;
  }

  .login-card {
    padding: 2.5rem 2rem;
  }

  .login-card h2 {
    font-size: 1.6rem;
  }

  .admin-sec-item {
    flex-direction: row;
    align-items: center;
  }

  .admin-sec-actions .btn {
    flex: 0 1 auto;
    min-width: auto;
  }
}

/* ========== Desktop employee layout (900px+) ========== */
@media (min-width: 900px) {
  :root {
    --header-height: 70px;
    --page-padding: 1.5rem;
  }

  header {
    padding: 0 2rem;
  }

  header h1 {
    font-size: 1.25rem;
  }

  .app-container {
    flex-direction: row;
    flex: 1;
    min-height: 0;
  }

  .app-container .sidebar,
  .app-container.section-open .sidebar {
    display: flex;
    width: var(--sidebar-width);
    flex-shrink: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
  }

  .app-container .main-content,
  .app-container.section-open .main-content {
    display: flex;
    flex: 1;
    min-width: 0;
  }

  .btn-back-mobile {
    display: none;
  }

  .content-inner {
    padding: 2rem 2.5rem;
    gap: 2rem;
  }

  .document-title {
    font-size: 2rem;
  }

  .document-content {
    font-size: 1.0625rem;
    padding: 1.5rem;
  }

  .document-body-card {
    padding: 2rem;
  }

  .section-item {
    padding: 1rem 1.25rem;
  }

  .section-name {
    font-size: 1rem;
  }

  .badge {
    max-width: none;
  }

  .confirm-all-bar {
    padding: 1rem 2rem;
  }

  .confirm-all-btn {
    max-width: 420px;
    margin-left: auto;
    margin-right: 0;
    width: auto;
  }

  .confirm-all-status {
    flex: 1;
  }

  .confirm-all-bar {
    flex-direction: row;
    align-items: center;
    gap: 1.25rem;
  }
}

/* ========== Large desktop ========== */
@media (min-width: 1200px) {
  .admin-tab {
    font-size: 0.9rem;
  }

  .panel-title {
    font-size: 1.2rem;
  }

  table {
    font-size: 0.9rem;
  }
}

/* Admin layout legacy grid (unused in tabbed admin) */
@media (max-width: 1024px) {
  .admin-layout {
    grid-template-columns: 1fr;
    overflow-y: auto;
    height: auto;
    padding: 1rem;
  }

  .admin-panel {
    height: auto;
    min-height: 320px;
  }
}

@media (max-width: 599px) {
  .header-link-btn span.desktop-only {
    display: none;
  }

  .user-badge-label {
    font-size: 0;
  }

  .user-badge-label strong {
    font-size: 0.8rem;
    max-width: 5.5rem;
  }

  .user-badge-label::before {
    content: none;
  }

  .panel-header .panel-title {
    width: 100%;
  }

  .form-input {
    width: 100%;
  }

  .confirmation-container {
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 1rem;
  }

  .confirm-form {
    flex-direction: column;
    align-items: stretch;
  }
}