/* 認証サイト（assets/style.css） */

/* ============================================================
   CSS変数
   ============================================================ */
:root {
    --color-bg:        #f4f6f9;
    --color-surface:   #ffffff;
    --color-primary:   #3a6fcf;
    --color-primary-h: #2d5ab5;
    --color-danger:    #d9534f;
    --color-warning:   #e6a817;
    --color-success:   #3a9c5f;
    --color-text:      #2c3e50;
    --color-muted:     #6c757d;
    --color-border:    #dee2e6;
    --color-code-bg:   #f1f3f5;

    --radius:  8px;
    --shadow:  0 2px 8px rgba(0,0,0,.08);
    --transition: .18s ease;
}

/* ============================================================
   リセット・ベース
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    background: var(--color-bg);
    color: var(--color-text);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

ul, ol { padding-left: 1.5em; }

code {
    font-family: 'Consolas', 'Courier New', monospace;
    background: var(--color-code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
    word-break: break-all;
}

code.small { font-size: 0.78em; }

/* ============================================================
   レイアウト（フロントエンド）
   ============================================================ */
.container {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 16px 40px;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0 16px;
    border-bottom: 2px solid var(--color-primary);
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 10px;
}

.site-title {
    font-size: 1.3rem;
    color: var(--color-primary);
    font-weight: 700;
}

.site-header nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-header nav a { color: var(--color-muted); font-size: 0.9rem; }
.site-header nav a:hover,
.site-header nav a.active { color: var(--color-primary); text-decoration: none; font-weight: 600; }

.main-content { display: flex; flex-direction: column; gap: 20px; }

.site-footer {
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-muted);
    font-size: 0.85rem;
}

/* ============================================================
   カード
   ============================================================ */
.card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
}

.card h2 { font-size: 1.25rem; margin-bottom: 14px; color: var(--color-primary); }
.card h3 { font-size: 1.05rem; margin-bottom: 14px; }

.description { color: var(--color-muted); margin-bottom: 20px; }

/* ============================================================
   フォーム
   ============================================================ */
.form { display: flex; flex-direction: column; gap: 18px; }

.form-inline {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 12px;
}

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 0.9rem; font-weight: 600; }
.form-group small { font-size: 0.8rem; color: var(--color-muted); }

input[type="text"],
input[type="email"],
input[type="password"],
select,
textarea {
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    width: 100%;
    transition: border-color var(--transition);
    background: #fff;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(58,111,207,.15);
}

textarea { resize: vertical; }

.required { color: var(--color-danger); }

/* ============================================================
   ボタン
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), opacity var(--transition);
    background: #e9ecef;
    color: var(--color-text);
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover { opacity: .88; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary { background: var(--color-primary);   color: #fff; }
.btn-danger  { background: var(--color-danger);    color: #fff; }
.btn-warning { background: var(--color-warning);   color: #fff; }
.btn-copy    { background: var(--color-primary);   color: #fff; padding: 6px 14px; font-size: 0.85rem; }
.btn-sm      { padding: 5px 12px; font-size: 0.85rem; }

/* ============================================================
   メッセージボックス
   ============================================================ */
.message-box {
    padding: 14px 18px;
    border-radius: 6px;
    margin-bottom: 18px;
    font-size: 0.95rem;
}

.message-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.message-error   { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ============================================================
   ライセンスキー表示
   ============================================================ */
.result-box {
    margin-top: 24px;
    padding: 20px;
    background: #e8f4fd;
    border: 1px solid #b8d9f5;
    border-radius: var(--radius);
}

.result-box h3 { margin-bottom: 12px; }

.license-key-display {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.license-key-display code {
    flex: 1;
    font-size: 0.82rem;
    background: #fff;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    word-break: break-all;
}

.result-note { font-size: 0.85rem; color: var(--color-muted); }

/* ============================================================
   ヒーロー / ステップ / FAQ
   ============================================================ */
.hero { text-align: center; }
.hero h2 { font-size: 1.5rem; margin-bottom: 10px; }
.hero p   { color: var(--color-muted); margin-bottom: 20px; }

.steps { display: flex; flex-direction: column; gap: 8px; }
.steps li { padding: 6px 0; }

.faq { display: flex; flex-direction: column; gap: 12px; }
.faq dt { font-weight: 700; }
.faq dd { color: var(--color-muted); margin-left: 1em; }

.info-card ul { display: flex; flex-direction: column; gap: 6px; }

.recaptcha-note { font-size: 0.78rem; color: var(--color-muted); }

/* ============================================================
   管理者画面
   ============================================================ */
.admin-body { background: #1e2533; }

.admin-login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card { width: 100%; max-width: 420px; }
.login-card h2 { text-align: center; margin-bottom: 24px; }

.admin-wrapper { min-height: 100vh; }

.admin-header {
    background: #252d3d;
    color: #fff;
    padding: 16px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,.3);
}

.admin-header h1 { font-size: 1.1rem; color: #fff; }

.admin-header-right {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.9rem;
    color: #aab;
}

.admin-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.admin-footer {
    position: relative;
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.admin-footer a {
    color: rgba(255,255,255,0.35);
    text-decoration: none;
    font-size: 0.8rem;
}
.admin-footer a:hover {
    color: rgba(255,255,255,0.75);
}
.admin-footer a.footer-right {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

/* 統計 */
.stats-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.stat-card {
    flex: 1;
    min-width: 120px;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    text-align: center;
}

.stat-num   { font-size: 2rem; font-weight: 700; color: var(--color-primary); }
.stat-label { font-size: 0.85rem; color: var(--color-muted); }
.stat-issued  .stat-num { color: var(--color-success); }
.stat-pending .stat-num { color: var(--color-warning); }

/* テーブル */
.table-wrapper { overflow-x: auto; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.admin-table th {
    background: var(--color-bg);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
    white-space: nowrap;
}

.admin-table td code {
    font-size: 0.75em;
    word-break: keep-all;
}

.admin-table tr:hover td { background: #f8f9fa; }

.action-cell { display: flex; gap: 6px; flex-wrap: wrap; }
.action-cell form { margin: 0; }

.text-center { text-align: center; }

/* バッジ */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-issued  { background: #d4edda; color: #155724; }
.badge-trial   { background: #cce5ff; color: #004085; }
.badge-pending { background: #fff3cd; color: #856404; }

/* ============================================================
   レスポンシブ
   ============================================================ */
@media (max-width: 600px) {
    .site-header { flex-direction: column; align-items: flex-start; }
    .card { padding: 20px; }
    .admin-header { flex-direction: column; align-items: flex-start; }
    .form-inline { flex-direction: column; }
    .form-inline .btn { align-self: flex-start; }
}