/* styles.css - VisAds 公式テーマ（VIS Account完全再現＋広告最適化） */
:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #eef2ff;
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --shadow: 0 10px 25px rgba(0,0,0,0.06);
    --radius: 16px;
}

* { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

.header {
    text-align: center;
    margin-bottom: 48px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.header h1 {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.header p {
    font-size: 18px;
    color: var(--text-light);
}

.user-bar {
    text-align: center;
    margin: 20px 0;
    font-size: 18px;
    font-weight: 600;
}

.logout-btn {
    display: inline-block;
    margin-left: 20px;
    background: var(--danger);
    color: white;
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 14px;
    text-decoration: none;
    font-weight: 600;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 32px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.card h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.upload-form {
    display: grid;
    grid-template-columns: 300px 1fr auto;
    gap: 16px;
    align-items: end;
    padding: 24px;
    background: var(--primary-light);
    border-radius: 12px;
    margin-bottom: 24px;
}

.upload-form select,
.upload-form input[type="file"] {
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 16px;
    background: white;
}

.upload-form button {
    padding: 14px 32px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-form button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.ad-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.ad-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: white;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

.ad-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(99,102,241,0.15);
    border-color: var(--primary);
}

.ad-item img {
    width: 100%;
    height: auto;
    display: block;
    background: #f1f5f9;
}

.ad-info {
    padding: 20px;
}

.ad-info .size {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.status {
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    display: inline-block;
}

.status.pending { background: #fffbeb; color: var(--warning); border: 1px solid #fde68a; }
.status.approved { background: #f0fdf4; color: #166534; border: 1px solid #86efac; }
.status.rejected { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }

footer {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
    font-size: 14px;
}