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

:root {
  --bg: #0f0f2e;
  --surface: #1a1a4e;
  --border: #2e2e6e;
  --gold: #c8a84b;
  --gold-light: #e8c87a;
  --text: #e8e8f0;
  --text-muted: #9090b8;
  --success: #4caf80;
  --error: #e05555;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1rem 2rem;
  min-height: 100dvh;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.03em;
}

header p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  width: 100%;
  max-width: 480px;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  resize: none;
  transition: border-color 0.2s;
}

input[type="text"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--gold);
}

input[type="text"]::placeholder,
textarea::placeholder { color: var(--text-muted); }

.char-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 0.3rem;
}

.char-count.warn { color: var(--error); }

button[type="submit"] {
  display: block;
  width: 100%;
  max-width: 480px;
  padding: 0.9rem;
  background: var(--gold);
  color: #0f0f2e;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  letter-spacing: 0.04em;
}

button[type="submit"]:hover  { background: var(--gold-light); }
button[type="submit"]:active { transform: scale(0.98); }
button[type="submit"]:disabled { opacity: 0.5; cursor: default; }

#message {
  width: 100%;
  max-width: 480px;
  padding: 1rem;
  border-radius: 0.75rem;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  display: none;
}

#message.success {
  display: block;
  background: rgba(76, 175, 128, 0.15);
  border: 1px solid var(--success);
  color: var(--success);
}

#message.error {
  display: block;
  background: rgba(224, 85, 85, 0.15);
  border: 1px solid var(--error);
  color: var(--error);
}

footer {
  margin-top: auto;
  padding-top: 2rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}