/* ==================== グローバル デザイン統一 ==================== */

:root {
  --bg: #f4f8fd;
  --panel: #ffffff;
  --line: #d5dfeb;
  --text: #1e2a36;
  --muted: #5d6f80;
  --accent: #0b5f8e;
  --safe: #1f7a4d;
  --warn: #a16800;
  --risk: #9d2a3b;
  --shadow: 0 10px 22px rgba(31, 61, 89, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  color: var(--text);
  background: radial-gradient(circle at 100% 0, #d9ebff 0, transparent 40%), var(--bg);
  line-height: 1.6;
}

/* ==================== ヘッダー ==================== */

.app-header {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(31, 61, 89, 0.06);
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header-content {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.app-header-brand:hover {
  opacity: 0.8;
}

.app-header-logo {
  font-weight: bold;
  font-size: 18px;
  color: var(--accent);
}

.app-header-nav {
  display: flex;
  gap: 16px;
  align-items: center;
}

.app-header-link {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.2s;
}

.app-header-link:hover {
  background: rgba(11, 95, 142, 0.08);
}

.app-header-link.active {
  color: var(--accent);
  font-weight: bold;
}

.app-header-status {
  font-size: 12px;
  color: var(--muted);
  padding: 4px 8px;
  background: rgba(11, 95, 142, 0.04);
  border-radius: 4px;
}

/* ==================== メインレイアウト ==================== */

main {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 18px 14px 34px;
}

/* ==================== ヒーロー セクション ==================== */

.hero {
  background: linear-gradient(135deg, #ffffff 0%, #f5fbff 62%, #f9f5ff 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.hero .eyebrow {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  background: #e5f2ff;
  color: var(--accent);
  font-weight: bold;
  font-size: 13px;
  margin-bottom: 8px;
}

.hero h1 {
  margin: 8px 0 12px;
  font-size: 34px;
  font-weight: 600;
}

.hero > p {
  margin: 6px 0;
  font-size: 16px;
  color: var(--muted);
}

.hero-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.hero-links a {
  display: inline-flex;
  align-items: center;
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.2s;
}

.hero-links a:hover {
  opacity: 0.7;
}

/* ==================== カード セクション ==================== */

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 12px;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

.card h3 {
  margin: 16px 0 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
}

.card p {
  margin: 8px 0;
  font-size: 15px;
}

/* ==================== ボタン ==================== */

.btn {
  display: inline-block;
  padding: 10px 16px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  font-family: inherit;
}

.btn:hover:not(:disabled) {
  background: #094b70;
  transform: translateY(-1px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.secondary {
  background: var(--line);
  color: var(--text);
}

.btn.secondary:hover:not(:disabled) {
  background: #c5d0dd;
}

/* ==================== フォーム要素 ==================== */

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
textarea {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--panel);
  transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(11, 95, 142, 0.1);
}

input[type="text"]:disabled,
input[type="password"]:disabled,
input[type="email"]:disabled,
input[type="number"]:disabled,
textarea:disabled {
  background: #f0f4fa;
  color: var(--muted);
}

input[type="checkbox"],
input[type="radio"] {
  cursor: pointer;
}

/* ==================== 情報ボックス ==================== */

.note {
  font-size: 13px;
  color: var(--muted);
  margin: 8px 0;
}

.hint-list {
  margin: 12px 0;
  padding-left: 20px;
  list-style: disc;
}

.hint-list li {
  margin: 4px 0;
  font-size: 14px;
  color: var(--text);
}

.warning-box,
.info-box {
  padding: 12px;
  border-radius: 8px;
  margin: 12px 0;
  border-left: 4px solid;
}

.warning-box {
  background: #fff3f1;
  border-left-color: var(--warn);
}

.warning-box strong {
  color: var(--warn);
}

.info-box {
  background: #e5f2ff;
  border-left-color: var(--accent);
}

.info-box strong {
  color: var(--accent);
}

/* ==================== ユーティリティ ==================== */

.row {
  display: flex;
  gap: 8px;
  margin: 12px 0;
  flex-wrap: wrap;
  align-items: center;
}

.row.actions {
  justify-content: flex-start;
}

a {
  color: var(--accent);
  text-decoration: underline;
}

a:hover {
  opacity: 0.8;
}

/* ==================== レスポンシブ ==================== */

@media (max-width: 768px) {
  .app-header-nav {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .hero {
    padding: 18px;
  }

  .hero h1 {
    font-size: 26px;
  }

  .card {
    padding: 14px;
  }
}