/* public/style.css — ธีมกลางของทั้งเว็บ: มือถือเป็นหลัก, max-width 768px, พรีเมียมมินิมอล */

:root {
  --bg: #0b0d12;
  --card: #141821;
  --border: #232838;
  --text: #eef1f7;
  --muted: #9aa4b8;
  --accent: #7c5cff;
  --accent2: #22d3ee;
  --ok: #34d399;
  --err: #f87171;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Thai", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent2);
}

.container {
  max-width: 768px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.brand {
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

h1 {
  font-size: 24px;
  margin: 0 0 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
  margin-top: 14px;
}

label:first-of-type {
  margin-top: 0;
}

input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0d1017;
  color: var(--text);
  font-size: 15px;
}

input:focus {
  outline: none;
  border-color: var(--accent);
}

button {
  width: 100%;
  margin-top: 20px;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #0b0d12;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.small {
  width: auto;
  margin-top: 0;
  padding: 8px 16px;
  font-size: 13px;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.banner {
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.banner.err {
  background: #241012;
  border: 1px solid #4a1f22;
  color: var(--err);
}

.banner.ok {
  background: #0d241a;
  border: 1px solid #1f4a34;
  color: var(--ok);
}

.banner.info {
  background: #0d1c24;
  border: 1px solid #1f3a4a;
  color: #6ad4f5;
}