/* =================================================================
   Legal Pages (Terms / Privacy) — v3 Neo-Brutalism
   navy + orange + butter | Bricolage + Hanken + Fraunces + JetBrains
   共用 landing.css nav + mobile menu + footer v3
   本檔專注：hero、sticky tabs、法律條款排版、intro/notice/enforcement/contact
   ================================================================= */

body.legal-page {
    font-family: var(--brand-v3-sans);
    color: var(--brand-v3-ink-soft);
    background: var(--brand-v3-cream);
}

body.legal-page em,
.legal-page .italic {
    font-family: var(--brand-v3-serif);
    font-style: italic;
    font-weight: 500;
    color: var(--brand-v3-orange);
    font-variation-settings: "opsz" 144;
}

/* ========== Hero ========== */
.legal-hero {
    position: relative;
    padding: 64px 24px 56px;
    text-align: center;
    overflow: hidden;
    background: var(--brand-v3-cream);
    border-bottom: 2.5px solid var(--brand-v3-navy);
}

.legal-hero-bg-blob {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.45;
    z-index: 0;
}

.legal-hero-bg-blob.purple {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--brand-v3-orange-soft) 0%, transparent 65%);
    top: -100px;
    right: -80px;
}

.legal-hero-bg-blob.blue {
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, var(--brand-v3-butter) 0%, transparent 65%);
    bottom: -80px;
    left: -60px;
}

.legal-hero-inner {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
    z-index: 1;
}

.legal-hero-title {
    font-family: var(--brand-v3-display);
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    color: var(--brand-v3-navy);
    margin: 0 0 14px;
    letter-spacing: -0.035em;
    line-height: 1.05;
    font-variation-settings: "opsz" 72, "wdth" 92;
}

.legal-hero-date {
    font-family: var(--brand-v3-mono);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--brand-v3-muted);
    margin: 0;
}

/* ========== Sticky Tab Navigation（黏在 nav 下方） ========== */
.legal-tabs {
    position: sticky;
    top: 85px;              /* desktop nav 高度 */
    z-index: 50;
    background: rgba(253, 251, 245, 0.92);
    backdrop-filter: saturate(1.4) blur(12px);
    -webkit-backdrop-filter: saturate(1.4) blur(12px);
    border-bottom: 2px solid var(--brand-v3-navy);
    padding: 0 24px;
}

.legal-tabs-inner {
    max-width: 840px;
    margin: 0 auto;
    display: flex;
    gap: 4px;
}

.legal-tab {
    flex: 1;
    padding: 14px 20px;
    text-align: center;
    font-family: var(--brand-v3-sans);
    font-size: 14.5px;
    font-weight: 600;
    color: var(--brand-v3-muted);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
    letter-spacing: -0.005em;
}

.legal-tab:hover {
    color: var(--brand-v3-navy);
    background: var(--brand-v3-butter);
}

.legal-tab.active {
    color: var(--brand-v3-navy);
    border-bottom-color: var(--brand-v3-orange);
    font-weight: 700;
}

/* ========== Content Area ========== */
.legal-content {
    max-width: 840px;
    margin: 0 auto;
    padding: 48px 24px 88px;
}

.legal-document {
    display: none;
}

.legal-document.active {
    display: block;
}

/* ========== Intro（頂部說明區，callout info 風格） ========== */
.legal-intro {
    position: relative;
    font-family: var(--brand-v3-sans);
    font-size: 15.5px;
    line-height: 1.8;
    color: var(--brand-v3-ink-soft);
    margin-bottom: 48px;
    padding: 22px 26px 22px 32px;
    background: var(--brand-v3-cream-2);
    border: 2.5px solid var(--brand-v3-navy);
    border-radius: 16px;
    box-shadow: var(--brand-v3-shadow-md);
}

.legal-intro::before {
    content: "";
    position: absolute;
    left: -2.5px;
    top: -2.5px;
    bottom: -2.5px;
    width: 6px;
    background: var(--brand-v3-navy);
    border-top-left-radius: 14px;
    border-bottom-left-radius: 14px;
}

/* ========== Sections ========== */
.legal-section {
    margin-bottom: 44px;
    scroll-margin-top: 160px;
}

.legal-section-title {
    font-family: var(--brand-v3-display);
    font-size: clamp(22px, 2.6vw, 28px);
    font-weight: 800;
    color: var(--brand-v3-navy);
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--brand-v3-navy);
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.legal-section-content {
    font-family: var(--brand-v3-sans);
    font-size: 15.5px;
    line-height: 1.8;
    color: var(--brand-v3-ink-soft);
    margin-bottom: 14px;
}

.legal-section-content strong {
    color: var(--brand-v3-navy);
    font-weight: 700;
}

/* ========== Lists ========== */
.legal-list {
    list-style: none;
    padding: 0;
    margin: 14px 0;
}

.legal-list li {
    position: relative;
    padding: 10px 0 10px 26px;
    font-family: var(--brand-v3-sans);
    font-size: 15px;
    line-height: 1.72;
    color: var(--brand-v3-ink-soft);
    border-bottom: 1.5px dashed var(--brand-v3-navy);
}

.legal-list li:last-child {
    border-bottom: none;
}

.legal-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 18px;
    width: 10px;
    height: 10px;
    background: var(--brand-v3-orange);
    border: 2px solid var(--brand-v3-navy);
    border-radius: 50%;
}

/* ========== Subsections（條款內二級標題） ========== */
.legal-subsection {
    margin: 24px 0;
    padding: 18px 20px;
    background: var(--brand-v3-paper);
    border: 2px solid var(--brand-v3-navy);
    border-radius: 14px;
    box-shadow: var(--brand-v3-shadow-sm);
}

.legal-subsection-title {
    font-family: var(--brand-v3-display);
    font-size: 17px;
    font-weight: 700;
    color: var(--brand-v3-navy);
    margin: 0 0 10px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.legal-subsection .legal-section-content {
    margin-bottom: 0;
    font-size: 14.5px;
}

/* ========== Notice（警告提示，orange-soft 底） ========== */
.legal-notice {
    position: relative;
    padding: 16px 20px 16px 26px;
    background: var(--brand-v3-orange-soft);
    border: 2.5px solid var(--brand-v3-navy);
    border-radius: 14px;
    font-family: var(--brand-v3-sans);
    font-size: 14.5px;
    font-weight: 500;
    line-height: 1.68;
    color: var(--brand-v3-navy);
    margin: 16px 0;
    box-shadow: var(--brand-v3-shadow-sm);
}

.legal-notice::before {
    content: "";
    position: absolute;
    left: -2.5px;
    top: -2.5px;
    bottom: -2.5px;
    width: 6px;
    background: var(--brand-v3-orange-deep);
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
}

/* ========== Enforcement（紅色警示，違規條款） ========== */
.legal-enforcement {
    position: relative;
    padding: 16px 20px 16px 26px;
    background: #FDE3E3;                    /* 紅 mist（v3 無 semantic 紅） */
    border: 2.5px solid var(--brand-v3-navy);
    border-radius: 14px;
    font-family: var(--brand-v3-sans);
    font-size: 14.5px;
    font-weight: 500;
    line-height: 1.68;
    color: #7A1818;                         /* 深紅字 */
    margin: 16px 0;
    box-shadow: var(--brand-v3-shadow-sm);
}

.legal-enforcement::before {
    content: "";
    position: absolute;
    left: -2.5px;
    top: -2.5px;
    bottom: -2.5px;
    width: 6px;
    background: #B02A2A;                    /* 磚紅 accent bar */
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
}

/* ========== Contact Block（聯絡資訊，butter 底貼紙卡） ========== */
.legal-contact {
    padding: 28px 30px;
    background: var(--brand-v3-butter);
    border: 2.5px solid var(--brand-v3-navy);
    border-radius: 18px;
    margin-top: 16px;
    box-shadow: var(--brand-v3-shadow-md);
    transition: transform 0.3s cubic-bezier(.2,.8,.2,1), box-shadow 0.3s ease;
}

.legal-contact:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--brand-v3-shadow-lg);
}

.legal-contact p {
    font-family: var(--brand-v3-sans);
    font-size: 15px;
    line-height: 1.72;
    color: var(--brand-v3-navy);
    margin: 8px 0;
}

.legal-contact p strong {
    font-weight: 700;
}

.legal-contact a {
    color: var(--brand-v3-orange-deep);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 2px solid var(--brand-v3-orange);
    transition: border-color 0.2s ease, color 0.2s ease;
}

.legal-contact a:hover {
    color: var(--brand-v3-navy);
    border-bottom-color: var(--brand-v3-navy);
}

/* ========== Back to top（保留） ========== */
.legal-back-top {
    text-align: center;
    padding: 44px 0 0;
    border-top: 2px dashed var(--brand-v3-navy);
    opacity: 1;
    margin-top: 52px;
}

.legal-back-top-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    background: var(--brand-v3-paper);
    color: var(--brand-v3-navy);
    border: 2px solid var(--brand-v3-navy);
    border-radius: 999px;
    font-family: var(--brand-v3-sans);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--brand-v3-shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.legal-back-top-btn:hover {
    background: var(--brand-v3-butter);
    transform: translate(-1px, -1px);
    box-shadow: var(--brand-v3-shadow-md);
}

/* =================================================================
   RWD 斷點系統（對齊 v3 skill §17）
   ≤820: hero padding 縮、tabs top 改 60px、content padding 縮
   ≤640: hero 字縮、tab 字縮、list padding 縮
   ================================================================= */

@media (max-width: 820px) {
    .legal-hero {
        padding: 48px 20px 40px;
    }

    .legal-hero-title {
        font-size: clamp(26px, 7vw, 40px);
    }

    .legal-tabs {
        top: 60px;          /* nav ≤820 高度縮小 */
        padding: 6px 18px 0;  /* 上方 6px 呼吸：sticky 觸發後 tab 文字不貼 nav */
    }

    .legal-tab {
        padding: 12px 16px;
        font-size: 13.5px;
    }

    .legal-content {
        padding: 36px 20px 64px;
    }

    .legal-section {
        margin-bottom: 36px;
        scroll-margin-top: 140px;
    }

    .legal-section-title {
        font-size: clamp(20px, 5vw, 24px);
        margin-bottom: 14px;
    }

    .legal-intro {
        padding: 18px 20px 18px 26px;
        font-size: 14.5px;
    }

    .legal-list li {
        padding: 9px 0 9px 22px;
        font-size: 14.5px;
    }

    .legal-subsection {
        padding: 16px 18px;
    }

    .legal-contact {
        padding: 22px 22px;
    }

    .legal-hero-bg-blob.purple {
        width: 300px;
        height: 300px;
        opacity: 0.32;
    }

    .legal-hero-bg-blob.blue {
        width: 260px;
        height: 260px;
        opacity: 0.32;
    }
}

@media (max-width: 640px) {
    .legal-hero {
        padding: 40px 18px 36px;
    }

    .legal-hero-title {
        font-size: clamp(22px, 8vw, 30px);
        letter-spacing: -0.025em;
    }

    .legal-tabs {
        padding: 6px 14px 0;
    }

    .legal-tab {
        padding: 11px 12px;
        font-size: 12.5px;
    }

    .legal-content {
        padding: 32px 18px 56px;
    }

    .legal-section-content,
    .legal-intro,
    .legal-notice,
    .legal-enforcement {
        font-size: 14px;
    }

    .legal-list li {
        font-size: 14px;
        padding: 8px 0 8px 22px;
    }

    .legal-subsection-title {
        font-size: 15.5px;
    }

    .legal-contact p {
        font-size: 14px;
    }
}

/* ========== Reduced Motion ========== */
@media (prefers-reduced-motion: reduce) {
    .legal-contact {
        transform: none !important;
    }
}