:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #0f172a;
  --text-muted: #475569;
  --border: #e2e8f0;
  --primary: #5146e0;
  --primary-2: #763de7;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.16);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 30px;
  --space-8: 40px;
  --focus-ring: rgba(81, 70, 224, 0.35);
}

:root[data-theme="green"],
:root[data-theme="forestGreen"] {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #0f172a;
  --text-muted: #475569;
  --border: #e2e8f0;
  --primary: #5146e0;
  --primary-2: #763de7;
  --success: #16a34a;
  --warning: #c17a1a;
  --danger: #c0392b;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.16);
  --focus-ring: rgba(81, 70, 224, 0.35);
}

:root[data-theme="forestGreen"] {
  --border: #e2e8f0;
  --primary: #5146e0;
  --primary-2: #763de7;
  --success: #16a34a;
}

:root[data-theme="transitionGreen"] {
  --bg: #2f7278;
  --surface: #ffffff;
  --surface-soft: #f4feff;
  --text: #0f2a2e;
  --text-muted: #2f5d64;
  --border: #ebf4f4;
  --primary: #ebf4f4;
  --primary-2: #ebf4f4;
  --success: #ebf4f4;
  --warning: #ebf4f4;
  --danger: #ff7f7f;
  --shadow-sm: 0 2px 8px rgba(15, 42, 46, 0.12);
  --shadow-md: 0 10px 30px rgba(15, 42, 46, 0.18);
  --shadow-lg: 0 20px 60px rgba(15, 42, 46, 0.22);
  --focus-ring: rgba(235, 244, 244, 0.5);
}

:root[data-theme="transitionGreenReverse"] {
  --bg: #ebf4f4;
  --surface: #ffffff;
  --surface-soft: #f7fcfc;
  --text: #153740;
  --text-muted: #2f5d64;
  --border: #2c6872;
  --primary: #2c6872;
  --primary-2: #2c6872;
  --success: #2c6872;
  --warning: #2c6872;
  --danger: #c75f5f;
  --shadow-sm: 0 2px 8px rgba(21, 55, 64, 0.12);
  --shadow-md: 0 10px 30px rgba(21, 55, 64, 0.18);
  --shadow-lg: 0 20px 60px rgba(21, 55, 64, 0.22);
  --focus-ring: rgba(44, 104, 114, 0.4);
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  color: var(--text);
  line-height: 1.5;
  letter-spacing: 0.01em;
}

html[data-theme="green"] body {
  background: linear-gradient(135deg, #677be1 0%, #715bb5 100%);
}

html[data-theme="forestGreen"] body {
  background: linear-gradient(135deg, #677be1 0%, #715bb5 100%);
}

/* Keep purple theme consistent on workflow pages. */
html[data-theme="forestGreen"] body:has(.page-shell) {
  background: linear-gradient(135deg, #677be1 0%, #715bb5 100%);
}

/* Three panel pages: make banner left side 16% lighter for ForestGreen. */
html[data-theme="forestGreen"] .page-shell .header {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--primary) 84%, #ffffff) 0%,
    var(--primary-2) 100%
  );
}

html[data-theme="transitionGreen"] body {
  background: linear-gradient(90deg, #327781 0%, #2c6872 100%);
}

html[data-theme="transitionGreenReverse"] body {
  background: linear-gradient(90deg, #ebf4f4 0%, #dde9e9 100%);
}

.container {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

h1, h2, h3 {
  color: var(--text);
  letter-spacing: -0.01em;
}

.subtitle,
.tagline,
.input-note,
.upload-hint,
.map-note,
.user-info,
.label-optional {
  color: var(--text-muted);
}

.header {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
}

.content {
  padding: clamp(20px, 3vw, 34px);
}

.section {
  margin-bottom: clamp(24px, 3vw, 34px);
  padding-bottom: clamp(24px, 3vw, 34px);
}

.section-title {
  font-size: clamp(1rem, 1.1vw + 0.8rem, 1.2rem);
  letter-spacing: -0.01em;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="file"],
select,
textarea {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: #fff;
  transition: border-color 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

input::placeholder,
textarea::placeholder {
  color: #94a3b8;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="file"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--primary) 70%, #ffffff);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 28%, transparent);
}

button,
.menu-button,
.download-link,
.link-button,
.user-action-btn,
.bottom-action-btn,
.logout-btn,
.route-refresh-btn,
.map-btn,
.btn,
a.link-button {
  border-radius: var(--radius-sm);
}

button,
.menu-button,
.btn-login,
.btn-primary,
.map-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
}

button:hover,
.menu-button:hover,
.download-link:hover,
a.link-button:hover,
.user-action-btn:hover,
.bottom-action-btn:hover,
.map-btn:hover,
.btn:hover,
.route-refresh-btn:hover {
  transform: translateY(-1px);
}

button:active,
.menu-button:active,
.download-link:active,
a.link-button:active,
.user-action-btn:active,
.bottom-action-btn:active,
.map-btn:active,
.btn:active,
.route-refresh-btn:active {
  transform: translateY(0);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.status {
  border-radius: var(--radius-sm);
}

.file-list-section,
.download-section,
.info-box,
.file-info,
.creator-section,
.etymology,
.user-bar,
.user-info,
.modal-content {
  border-radius: var(--radius-md);
}

table {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
}

th {
  background: #f8fafc;
}

th,
td {
  border-bottom-color: var(--border);
}

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

.map-canvas {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.home-nav {
  max-width: 900px;
  margin: 0 auto var(--space-3);
}

.home-btn {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--primary) 30%, transparent);
}

.home-btn:hover {
  box-shadow: 0 8px 20px color-mix(in srgb, var(--primary) 34%, transparent);
}

html[data-theme="green"] .user-info {
  color: var(--primary);
}

html[data-theme="forestGreen"] .user-info {
  color: var(--primary);
}

html[data-theme="forestGreen"] .home-btn {
  background: linear-gradient(135deg, #9fb8ac 0%, #8aa396 100%);
  color: #153328;
  border: 1px solid #d4e0d9;
  box-shadow: 0 8px 20px rgba(31, 48, 40, 0.30);
}

html[data-theme="forestGreen"] .home-btn:hover {
  background: linear-gradient(135deg, #acc2b7 0%, #94ad9f 100%);
  color: #10291f;
  box-shadow: 0 12px 26px rgba(31, 48, 40, 0.34);
}

html[data-theme="green"] .user-action-btn:hover,
html[data-theme="green"] .bottom-action-btn:hover,
html[data-theme="green"] .flow-close-btn:hover {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  border-color: color-mix(in srgb, var(--primary) 75%, #ffffff);
}

html[data-theme="green"] .tagline {
  color: color-mix(in srgb, var(--text) 82%, #ffffff);
}

/* Main menu page has inline .menu-button.primary styles; use matching specificity to override in green theme. */
html[data-theme="green"] .menu-button.primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  box-shadow: 0 6px 16px rgba(55, 76, 64, 0.26);
}

html[data-theme="forestGreen"] .menu-button.primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  box-shadow: 0 6px 16px rgba(55, 76, 64, 0.26);
}

html[data-theme="green"] .menu-button.primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #7f9b8c 0%, #6f8b7b 100%);
  box-shadow: 0 10px 24px rgba(55, 76, 64, 0.32);
}

html[data-theme="forestGreen"] .menu-button.primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #7f9b8c 0%, #6f8b7b 100%);
  box-shadow: 0 10px 24px rgba(55, 76, 64, 0.32);
}

html[data-theme="green"] .container {
  border-color: #cfe6d7;
}

html[data-theme="forestGreen"] .container {
  border-color: #cfe6d7;
}

html[data-theme="green"] .bottom-actions {
  border-top: 2px solid #c7d8ce;
}

html[data-theme="forestGreen"] .bottom-actions {
  border-top: 2px solid #baccbf;
}

html[data-theme="green"] .admin-only-links {
  border-top-color: #c7d8ce;
}

html[data-theme="forestGreen"] .admin-only-links {
  border-top-color: #baccbf;
}

html[data-theme="green"] .user-bar {
  background: #edf3ef;
}

html[data-theme="forestGreen"] .user-bar {
  background: #edf3ef;
}

html[data-theme="green"] .bottom-action-btn,
html[data-theme="green"] .user-action-btn,
html[data-theme="green"] .flow-close-btn {
  background: #f4f8f5;
  border-color: #b9cbc0;
  color: #274a38;
}

html[data-theme="forestGreen"] .bottom-action-btn,
html[data-theme="forestGreen"] .user-action-btn,
html[data-theme="forestGreen"] .flow-close-btn {
  background: #edf3ef;
  border-color: #afc2b6;
  color: #274a38;
}

html[data-theme="green"] .bottom-action-btn:hover,
html[data-theme="green"] .user-action-btn:hover,
html[data-theme="green"] .flow-close-btn:hover {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  border-color: var(--primary-2);
  color: #fff;
}

html[data-theme="forestGreen"] .bottom-action-btn:hover,
html[data-theme="forestGreen"] .user-action-btn:hover,
html[data-theme="forestGreen"] .flow-close-btn:hover {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  border-color: var(--primary-2);
  color: #fff;
}

html[data-theme="green"] .section {
  border-bottom-color: #cfddd4;
}

html[data-theme="forestGreen"] .section {
  border-bottom-color: #cfddd4;
}

html[data-theme="transitionGreen"] .menu-button.primary,
html[data-theme="transitionGreen"] .bottom-action-btn,
html[data-theme="transitionGreen"] .user-action-btn,
html[data-theme="transitionGreen"] .flow-close-btn,
html[data-theme="transitionGreen"] .home-btn,
html[data-theme="transitionGreen"] button,
html[data-theme="transitionGreen"] .map-btn,
html[data-theme="transitionGreen"] .route-refresh-btn {
  background: #ebf4f4;
  color: #12353a;
  border-color: #ebf4f4;
}

html[data-theme="transitionGreen"] .menu-button.primary:hover:not(:disabled),
html[data-theme="transitionGreen"] .bottom-action-btn:hover,
html[data-theme="transitionGreen"] .user-action-btn:hover,
html[data-theme="transitionGreen"] .flow-close-btn:hover,
html[data-theme="transitionGreen"] .home-btn:hover,
html[data-theme="transitionGreen"] button:hover,
html[data-theme="transitionGreen"] .map-btn:hover,
html[data-theme="transitionGreen"] .route-refresh-btn:hover {
  background: #f3f8f8;
  border-color: #f3f8f8;
  color: #0f2f34;
}

html[data-theme="transitionGreen"] .container,
html[data-theme="transitionGreen"] .section,
html[data-theme="transitionGreen"] .file-list-section,
html[data-theme="transitionGreen"] .download-section,
html[data-theme="transitionGreen"] .uploads-list,
html[data-theme="transitionGreen"] .map-canvas,
html[data-theme="transitionGreen"] .bottom-actions,
html[data-theme="transitionGreen"] .admin-only-links,
html[data-theme="transitionGreen"] table,
html[data-theme="transitionGreen"] th,
html[data-theme="transitionGreen"] td {
  border-color: #ebf4f4;
}

html[data-theme="transitionGreenReverse"] .menu-button.primary,
html[data-theme="transitionGreenReverse"] .bottom-action-btn,
html[data-theme="transitionGreenReverse"] .user-action-btn,
html[data-theme="transitionGreenReverse"] .flow-close-btn,
html[data-theme="transitionGreenReverse"] .home-btn,
html[data-theme="transitionGreenReverse"] button,
html[data-theme="transitionGreenReverse"] .map-btn,
html[data-theme="transitionGreenReverse"] .route-refresh-btn {
  background: #2c6872;
  color: #ebf4f4;
  border-color: #2c6872;
}

html[data-theme="transitionGreenReverse"] .menu-button.primary:hover:not(:disabled),
html[data-theme="transitionGreenReverse"] .bottom-action-btn:hover,
html[data-theme="transitionGreenReverse"] .user-action-btn:hover,
html[data-theme="transitionGreenReverse"] .flow-close-btn:hover,
html[data-theme="transitionGreenReverse"] .home-btn:hover,
html[data-theme="transitionGreenReverse"] button:hover,
html[data-theme="transitionGreenReverse"] .map-btn:hover,
html[data-theme="transitionGreenReverse"] .route-refresh-btn:hover {
  background: #2f727d;
  border-color: #2f727d;
  color: #f3f8f8;
}

html[data-theme="transitionGreenReverse"] .container,
html[data-theme="transitionGreenReverse"] .section,
html[data-theme="transitionGreenReverse"] .file-list-section,
html[data-theme="transitionGreenReverse"] .download-section,
html[data-theme="transitionGreenReverse"] .uploads-list,
html[data-theme="transitionGreenReverse"] .map-canvas,
html[data-theme="transitionGreenReverse"] .bottom-actions,
html[data-theme="transitionGreenReverse"] .admin-only-links,
html[data-theme="transitionGreenReverse"] table,
html[data-theme="transitionGreenReverse"] th,
html[data-theme="transitionGreenReverse"] td {
  border-color: #2c6872;
}

@media (max-width: 900px) {
  body {
    padding: 14px;
  }

  .container {
    border-radius: var(--radius-md);
  }

  .header {
    padding: 24px 18px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
  }

  .header h1 {
    font-size: clamp(1.3rem, 4.2vw, 1.8rem);
  }

  .form-row {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }

  .route-input-row,
  .map-controls-row,
  .button-group,
  .bottom-actions,
  .checkbox-group {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .button-group {
    grid-template-columns: 1fr !important;
  }

  .menu-button,
  button,
  .download-link,
  .bottom-action-btn,
  .user-action-btn,
  .route-refresh-btn {
    width: 100%;
    margin-right: 0;
  }

  table,
  thead,
  tbody,
  th,
  td,
  tr {
    display: block;
    width: 100%;
  }

  thead {
    display: none;
  }

  tr {
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
  }

  td {
    border: none;
    padding: 8px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}