:root {
  --bg: #0f172a;
  --body-bg: linear-gradient(180deg, #020617 0%, #0f172a 100%);
  --body-overlay: radial-gradient(circle at top, rgba(56, 189, 248, 0.15), transparent 35%);
  --panel: rgba(15, 23, 42, 0.88);
  --panel-solid: rgba(15, 23, 42, 0.96);
  --panel-strong: rgba(15, 23, 42, 0.82);
  --panel-border: rgba(148, 163, 184, 0.22);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --accent-deep: #0369a1;
  --danger: #f87171;
  --success: #4ade80;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.4);
  --radius: 24px;
  --surface-radius: 18px;
  --button-radius: 999px;
  --input-border: rgba(148, 163, 184, 0.3);
  --input-bg: rgba(15, 23, 42, 0.9);
  --checkbox-bg: rgba(15, 23, 42, 0.6);
  --checkbox-item-bg: transparent;
  --checkbox-item-border: transparent;
  --topbar-text: #e2e8f0;
  --logo-hub-bg: #f7941d;
  --logo-hub-text: #111111;
  --focus-ring: rgba(56, 189, 248, 0.18);
  --placeholder: rgba(148, 163, 184, 0.7);
}

html[data-theme='mobohub'] {
  --bg: #0b0b0b;
  --body-bg: linear-gradient(180deg, #050505 0%, #111111 100%);
  --body-overlay: linear-gradient(180deg, rgba(247, 148, 29, 0.08), transparent 20%);
  --panel: #111111;
  --panel-solid: #111111;
  --panel-strong: #1a1a1a;
  --panel-border: #2a2a2a;
  --text: #f5f5f5;
  --muted: #b7b7b7;
  --accent: #f7941d;
  --accent-strong: #ffad42;
  --accent-deep: #d66f00;
  --danger: #ff6b6b;
  --success: #58d68d;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --radius: 8px;
  --surface-radius: 6px;
  --button-radius: 6px;
  --input-border: #333333;
  --input-bg: #0a0a0a;
  --checkbox-bg: #0d0d0d;
  --checkbox-item-bg: #121212;
  --checkbox-item-border: #272727;
  --topbar-text: #f5f5f5;
  --focus-ring: rgba(247, 148, 29, 0.2);
  --placeholder: #7d7d7d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--body-overlay), var(--body-bg);
  color: var(--text);
}

.page {
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 28px 18px 48px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.brand {
  display: flex;
  align-items: center;
  min-height: 44px;
}

.brand-mark {
  align-items: center;
  gap: 0;
  font-size: clamp(1.65rem, 3vw, 2.2rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--topbar-text);
}

.brand-current,
.brand-mobohub {
  display: none;
}

html[data-theme='current'] .brand-current {
  display: inline-flex;
}

html[data-theme='mobohub'] .brand-mobohub {
  display: inline-flex;
}

.brand-mobo {
  padding-right: 2px;
}

.brand-hub {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 4px;
  padding: 7px 10px 8px;
  border-radius: 8px;
  background: var(--logo-hub-bg);
  color: var(--logo-hub-text);
}

.theme-switcher {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
}

.theme-btn {
  border: 1px solid var(--panel-border);
  border-radius: var(--button-radius);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 10px 14px;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.theme-btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.theme-btn[aria-pressed='true'] {
  background: var(--accent);
  border-color: var(--accent);
  color: #111111;
}

.app-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

html[data-theme='current'] .app-card {
  backdrop-filter: blur(16px);
}

html[data-theme='mobohub'] .app-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)), var(--panel-solid);
}

.hero {
  padding: 28px 30px 24px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--panel-strong);
}

html[data-theme='current'] .hero {
  background: rgba(15, 23, 42, 0.72);
}

html[data-theme='mobohub'] .hero {
  background:
    linear-gradient(90deg, rgba(247, 148, 29, 0.16), rgba(247, 148, 29, 0) 45%),
    var(--panel-strong);
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
}

html[data-theme='mobohub'] .hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
}

html[data-theme='mobohub'] .eyebrow {
  display: inline-block;
  padding: 7px 10px;
  margin-bottom: 14px;
  background: var(--accent);
  color: #111111;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 900;
  border-radius: 4px;
}

.subtitle {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.report-form {
  display: grid;
  gap: 18px;
  padding: 28px 30px 30px;
}

.field-label,
.checkbox-group legend {
  font-weight: 700;
  font-size: 0.98rem;
}

html[data-theme='mobohub'] .field-label,
html[data-theme='mobohub'] .checkbox-group legend {
  font-weight: 800;
  font-size: 0.94rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

textarea {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: var(--surface-radius);
  background: var(--input-bg);
  color: var(--text);
  padding: 18px;
  font: inherit;
  line-height: 1.6;
  resize: vertical;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring);
}

html[data-theme='mobohub'] textarea:focus {
  box-shadow: 0 0 0 3px var(--focus-ring);
  background: #101010;
}

textarea::placeholder {
  color: var(--placeholder);
}

.checkbox-group {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--panel-border);
  border-radius: var(--surface-radius);
  background: var(--checkbox-bg);
}

html[data-theme='current'] .checkbox-group {
  padding: 20px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 20px;
  margin-top: 16px;
}

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--checkbox-item-border);
  border-radius: var(--surface-radius);
  background: var(--checkbox-item-bg);
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 600;
}

html[data-theme='current'] .checkbox-grid label {
  min-height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  font-weight: 400;
}

.checkbox-grid input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  border: 1px solid transparent;
  border-radius: var(--button-radius);
  padding: 14px 22px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

html[data-theme='mobohub'] .btn {
  min-width: 170px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.btn:disabled {
  cursor: wait;
  opacity: 0.78;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #082f49;
}

html[data-theme='mobohub'] .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #111111;
}

html[data-theme='mobohub'] .btn-primary:hover:not(:disabled) {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn-secondary {
  background: #e2e8f0;
  color: #0f172a;
}

html[data-theme='mobohub'] .btn-secondary {
  background: #1a1a1a;
  border-color: var(--accent);
  color: var(--accent);
}

html[data-theme='mobohub'] .btn-secondary:hover:not(:disabled) {
  background: #202020;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--panel-border);
}

html[data-theme='current'] .btn-ghost {
  border-color: rgba(148, 163, 184, 0.32);
}

html[data-theme='mobohub'] .btn-ghost {
  border-color: #3a3a3a;
}

html[data-theme='mobohub'] .btn-ghost:hover:not(:disabled) {
  border-color: var(--accent-deep);
  color: var(--accent-strong);
}

.status-message,
.error-message {
  min-height: 1.25rem;
  margin: 0;
  font-size: 0.94rem;
}

html[data-theme='mobohub'] .status-message,
html[data-theme='mobohub'] .error-message {
  font-weight: 600;
}

.status-message {
  color: var(--success);
}

.error-message {
  color: var(--danger);
}

@media (max-width: 720px) {
  .page {
    padding-left: 14px;
    padding-right: 14px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .report-form {
    padding-left: 18px;
    padding-right: 18px;
  }

  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    min-width: 0;
  }

  .theme-switcher {
    width: 100%;
  }

  .theme-btn {
    flex: 1 1 0;
  }
}