:root {
  --bg: #0f1729;
  --panel: #0f1625;
  --panel-strong: #11192b;
  --text: #ffffff;
  --text-muted: #d1d5db;
  --muted: #9fb2d3;
  --accent: #6dd3ff;
  --accent-strong: #3cb8ff;
  --border: rgba(255,255,255,0.12);
  --shadow: 0 24px 60px rgba(0,0,0,0.35);
  --radius: 14px;
  --radius-sm: 10px;
  --gap: 14px;
  --font: 'Space Grotesk', 'Work Sans', sans-serif;
}

/* Light Mode */
[data-theme="light"] {
  --bg: #f8fafc;
  --panel: #ffffff;
  --panel-strong: #f1f5f9;
  --text: #0f172a;
  --text-muted: #475569;
  --muted: #64748b;
  --accent: #0ea5e9;
  --accent-strong: #0284c7;
  --border: rgba(0,0,0,0.08);
  --shadow: 0 4px 20px rgba(0,0,0,0.12);
}

* { box-sizing: border-box; }

body.feedback-body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 20% 20%, rgba(109,211,255,0.18), transparent 36%),
              radial-gradient(circle at 80% 10%, rgba(124,92,255,0.18), transparent 32%),
              radial-gradient(circle at 70% 70%, rgba(255,160,122,0.16), transparent 36%),
              linear-gradient(135deg, #0b1220 0%, #0f1729 40%, #0c1323 100%);
  color: var(--text);
  font-family: var(--font);
  display: flex;
  justify-content: center;
  padding: 28px 16px 40px;
  transition: background 0.3s ease;
}

[data-theme="light"] body.feedback-body {
  background: linear-gradient(135deg, #f0f9ff 0%, #f8fafc 40%, #f1f5f9 100%);
}

.feedback-shell {
  width: min(1100px, 100%);
  display: grid;
  gap: 18px;
}

.feedback-hero {
  background: linear-gradient(120deg, rgba(109,211,255,0.16), rgba(60,184,255,0.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
}

.hero-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.hero-text h1 {
  margin: 6px 0 8px;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.hero-text .lede {
  margin: 0;
  color: var(--text-muted);
  max-width: 820px;
  line-height: 1.6;
  font-size: 16px;
}

.hero-text .eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
}

.hero-actions {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost-link {
  color: var(--accent);
  text-decoration: none;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  font-weight: 600;
  font-size: 15px;
}

.ghost-link:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.14);
  transform: translateY(-1px);
}

.theme-toggle {
  appearance: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.15s ease, transform 0.15s ease;
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.12);
  transform: scale(1.05);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.feedback-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

#feedback-form {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

label {
  font-weight: 700;
  color: var(--text);
  font-size: 16px;
  display: block;
}

input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--panel-strong);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

input::placeholder, textarea::placeholder, select {
  color: var(--text-muted);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(109,211,255,0.16);
}

[data-theme="light"] input:focus, [data-theme="light"] select:focus, [data-theme="light"] textarea:focus {
  box-shadow: 0 0 0 3px rgba(14,165,233,0.16);
}

textarea { 
  resize: vertical; 
  min-height: 100px;
}

.form-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-section label {
  margin-bottom: 4px;
}

.form-section select {
  width: 100%;
}

.radio-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.radio-group legend {
  padding: 0 6px;
  color: var(--text);
  font-weight: 700;
  font-size: 16px;
}

.radio-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px 12px;
  margin-top: 12px;
}

.radio-row label {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 600;
}

input[type="radio"] {
  width: auto;
  accent-color: var(--accent-strong);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.primary-btn {
  padding: 14px 20px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(120deg, var(--accent-strong), #7be0ff);
  color: #0b1220;
  font-weight: 800;
  letter-spacing: 0.01em;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  box-shadow: 0 10px 24px rgba(109,211,255,0.24);
}

.primary-btn:hover { 
  transform: translateY(-1px); 
}

.primary-btn:active { 
  transform: translateY(0); 
}

.primary-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.status {
  min-height: 20px;
  font-size: 15px;
  color: var(--text-muted);
}

.status.success { 
  color: #5ee38e; 
}

.status.error { 
  color: #ff8a7a; 
}

@media (max-width: 640px) {
  body.feedback-body { 
    padding: 22px 14px 34px; 
  }
  .feedback-card { 
    padding: 20px; 
  }
  .hero-header {
    flex-direction: column;
  }
  .theme-toggle {
    align-self: flex-start;
  }
}