/* ============================================
   Mobile Portal Layout & Structure
   ============================================ */
:root {
    --bg-primary: #e0f7fa;
    --bg-card: rgba(255, 255, 255, 0.9);
    --header-height: 50px;
    --anchor-ad-height: 50px;
}

/* Enable scrolling for mobile portal */
/* Enable fixed layout for mobile portal scale compatibility */
html,
body.mobile-portal-body {
    height: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body.mobile-portal-body {
    background: var(--bg-primary);
    width: 100%;
    height: 100%;
}

/* 共通スケーリングコンテナ（ポータル用） */
#game-safe-area {
    position: absolute !important;
    top: 0 !important;
    left: 50% !important;
    width: 375px !important;
    height: var(--viewport-height, 667px) !important;
    transform: translate(-50%, 0) scale(var(--scale-factor, 1)) !important;
    transform-origin: top center !important;
    overflow: hidden !important;
    background: var(--bg-primary) !important;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.15) !important;
}

/* 内部スクロールコンテナ */
.portal-scroll-container {
    width: 100%;
    height: calc(100% - 100px) !important; /* 広告50px + ヘッダー50px = 100px */
    overflow-y: auto !important;
    overflow-x: hidden !important;
    position: absolute;
    top: 100px !important; /* 広告とヘッダーの下 */
    left: 0;
    -webkit-overflow-scrolling: touch;
    box-sizing: border-box;
}

/* 既存の .screen やログイン/マイページ画面を最前面に表示 */
.screen,
.login-wrapper,
.mypage-wrapper {
    position: absolute;
    inset: 0;
    z-index: 3000;
    background: var(--bg-primary);
    display: none;
    flex-direction: column;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.screen.active,
.login-wrapper.active,
.mypage-wrapper.active {
    display: flex !important;
    opacity: 1 !important;
    pointer-events: auto !important;
}

/* 広告枠の基本配置 */
.ad-banner {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: var(--anchor-ad-height) !important;
    z-index: 2000 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.7rem !important;
    color: #999 !important;
}

/* ヘッダー (広告の下に固定) */
header.mobile-header {
    height: var(--header-height);
    background: rgba(224, 247, 250, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid rgba(0, 188, 212, 0.2);
    position: absolute;
    top: var(--anchor-ad-height) !important; /* 広告（高さ50px）の直下 */
    left: 0;
    width: 100%;
    z-index: 1500;
}

.header-title {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.header-title h1 {
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: var(--green-dark);
    margin: 0;
    line-height: 1.2;
}

.header-title .subtitle {
    font-family: var(--font-title);
    font-size: 0.55rem;
    color: var(--green-neon);
    margin-top: 1px;
    letter-spacing: 0.5px;
    line-height: 1;
}

.header-mypage {
    font-size: 0.75rem;
    font-weight: 900;
    color: var(--green-dark);
    border: 1.5px solid var(--green-neon);
    padding: 4px 12px;
    width: 90px !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    box-sizing: border-box !important;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    transition: all 0.1s;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.header-mypage:active {
    background: var(--bg-primary);
    transform: scale(0.95);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* フッター */
footer.mobile-footer {
    padding: 20px 16px;
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--green-dark);
    text-decoration: none;
}

/* PC閲覧用ガイド */
@media (min-width: 600px) {
    body.mobile-portal-body {
        max-width: 430px;
        margin: 0 auto;
        border-left: 1px solid #ddd;
        border-right: 1px solid #ddd;
        box-shadow: 0 0 40px rgba(0, 0, 0, 0.1);
    }
}