/* =========================================
   HDR Photo Gallery PoC - Notice Page Stylesheet
   ========================================= */

:root {
    --bg-color: #080808;
    --text-color: #f3f4f6;
    --text-muted: #9ca3af;
    --accent-color: #f59e0b; /* 警告・アテンション用のアンバー */
    --accent-glow: rgba(245, 158, 11, 0.15);
    --success-color: #10b981; /* HDR対応時のエメラルドグリーン */
    --error-color: #ef4444; /* 非対応時のクリムゾンレッド */
    --card-bg: rgba(255, 255, 255, 0.03);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-blue: #3b82f6;
}

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

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(245, 158, 11, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 40%);
    color: var(--text-color);
    font-family: 'Outfit', 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: 4rem;
    overflow-x: hidden;
}

/* ヘッダー */
.header {
    padding: 3rem 2rem 2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 30%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.header p {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.05em;
}

/* メインコンテナ */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* HDR対応判定エリア */
.hdr-status {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.hdr-status::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

.hdr-status-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
}

.hdr-status-value {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
}

.hdr-status-text {
    transition: all 0.3s ease;
}

.hdr-capable {
    color: var(--success-color);
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hdr-not-supported {
    color: var(--error-color);
    text-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
    font-weight: 600;
    font-size: 1.4rem;
}

.hdr-status-note {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* セクション設定 */
section {
    margin-bottom: 3rem;
}

section h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
    border-left: 3px solid var(--accent-color);
    padding-left: 0.8rem;
}

/* カード型表示 */
.card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.8rem;
    margin-bottom: 1.2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

ul {
    list-style: none;
}

li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    font-size: 0.92rem;
    color: var(--text-muted);
}

li:last-child {
    margin-bottom: 0;
}

li strong {
    color: #fff;
    font-weight: 500;
}

/* チェックマーク・ドット */
li::before {
    content: "✓";
    position: absolute;
    left: 0.2rem;
    top: 0.1rem;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 0.9rem;
}

/* 警告・重要表示 */
.notice {
    background: rgba(245, 158, 11, 0.04);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 16px;
    padding: 1.8rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 24px rgba(245, 158, 11, 0.05);
}

.notice strong {
    color: var(--accent-color);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.6rem;
    font-weight: 600;
}

.notice p {
    font-size: 0.92rem;
    color: #e5e7eb;
    line-height: 1.7;
}

.notice-blue {
    background: rgba(59, 130, 246, 0.04);
    border: 1px solid rgba(59, 130, 246, 0.2);
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.05);
}

.notice-blue strong {
    color: var(--accent-blue);
}

/* CTAセクション */
.cta-section {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(59, 130, 246, 0.04) 100%);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    margin-top: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.cta-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: #fff;
}

.cta-section p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.8rem;
}

.btn-container {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ボタン */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.button-primary {
    background: #fff;
    color: #000;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.button-primary:hover {
    background: #e4e4e7;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

.button-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: #fff;
    backdrop-filter: blur(10px);
}

.button-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* フッター */
.footer {
    text-align: center;
    padding: 3rem 1rem 0;
    color: #52525b;
    font-size: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    max-width: 800px;
    margin: 3rem auto 0;
}

/* レスポンシブ */
@media (max-width: 600px) {
    .header h1 {
        font-size: 1.7rem;
    }
    
    .btn-container {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .button {
        width: 100%;
        padding: 0.85rem 1.5rem;
    }
    
    .hdr-status {
        padding: 1.5rem;
    }
    
    .hdr-status-value {
        font-size: 1.4rem;
    }
}