/**
 * 앱 공통 셸 (헤더 1280px / max-w-7xl, 광고 레일)
 * index.html, cardList.html 과 동일한 콘텐츠 최대 너비 기준
 */

@import './brand.css';

:root {
    --app-max-width: 80rem; /* 1280px — Tailwind max-w-7xl */
    --app-gutter: 1.5rem;
    --app-nav-height: 4rem;
    --app-ad-rail-width: 18.75rem; /* 300px — 디스플레이 광고 */
}

.app-page {
    font-family: 'Inter', 'Noto Sans KR', sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: #0f172a;
}

.app-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e2e8f0;
}

.app-nav-inner {
    max-width: var(--app-max-width);
    margin: 0 auto;
    padding: 0 var(--app-gutter);
    height: var(--app-nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.app-ad-top {
    max-width: var(--app-max-width);
    margin: 0 auto;
    padding: 0.75rem var(--app-gutter) 0;
}

.app-shell {
    max-width: var(--app-max-width);
    margin: 0 auto;
    padding: 2rem var(--app-gutter) 5rem;
}

@media (min-width: 640px) {
    .app-shell {
        padding-top: 3rem;
    }
}

.app-body-layout {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: stretch;
}

.app-main {
    flex: 1;
    min-width: 0;
}

.app-ad-rail {
    display: none;
}

.app-ad-slot {
    overflow: hidden;
    border-radius: 0.75rem;
    background: #f8fafc;
    border: 1px dashed #e2e8f0;
}

.app-ad-slot--leaderboard {
    min-height: 90px;
    width: 100%;
}

.app-ad-slot--skyscraper {
    min-height: 600px;
    width: 100%;
}

.app-ad-slot--skyscraper:has(ins.adsbygoogle) {
    min-height: auto;
    border: none;
    background: transparent;
}

.app-ad-slot ins {
    display: block;
    width: 100%;
}

@media (min-width: 1024px) {
    .app-ad-top {
        display: none;
    }

    .app-body-layout {
        flex-direction: row;
        align-items: flex-start;
    }

    .app-ad-rail {
        display: block;
        flex: 0 0 var(--app-ad-rail-width);
        width: var(--app-ad-rail-width);
        position: sticky;
        top: calc(var(--app-nav-height) + 1rem);
    }
}

@media (max-width: 1023px) {
    .app-ad-rail {
        display: none;
    }
}

/* 페이지 제목 + ? 도움말 */
.page-title-row {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.page-title-row h1 {
    margin: 0;
    flex: 1;
    min-width: 0;
}

.page-help-btn {
    flex-shrink: 0;
    width: 1.625rem;
    height: 1.625rem;
    border-radius: 50%;
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    color: #64748b;
    font-size: 0.75rem;
    font-weight: 800;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.page-help-btn:hover,
.page-help-btn[aria-expanded='true'] {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #2563eb;
}

.page-help-tooltip {
    position: absolute;
    z-index: 300;
    max-width: min(22rem, calc(100vw - 2rem));
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
    line-height: 1.55;
    color: #334155;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}