/* 靜心・觀呼吸 閱讀網站樣式
   沿用 haodao 既有設計語言（米底褐字、Noto Serif TC 標題、寧靜留白） */

:root {
    --color-bg: #211e17;
    --color-text: #f0ece1;
    --color-accent: #d6b876;
    --color-muted: #aaa392;
    --color-divider: #3c382e;
    --color-card: #2a2620;
    --max-read: 40rem;
    --max-wide: 60rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(1100px 680px at 50% -12%, rgba(214, 184, 118, 0.14), transparent 60%), var(--color-bg);
    color: var(--color-text);
    line-height: 1.95;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}

/* ---------- 頂部列 ---------- */
.reader-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem clamp(1rem, 4vw, 2rem);
    background: rgba(33, 30, 23, 0.86);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-divider);
}

.reader-header .brand {
    font-family: 'Noto Serif TC', serif;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: var(--color-text);
    font-size: 1.02rem;
}

.reader-header .brand small {
    display: block;
    font-family: 'Noto Sans TC', sans-serif;
    font-weight: 400;
    font-size: 0.68rem;
    letter-spacing: 0.28em;
    color: var(--color-accent);
    margin-top: 0.1rem;
}

.reader-header .toc-link {
    font-size: 0.92rem;
    letter-spacing: 0.1em;
    padding: 0.4rem 1rem;
    border: 1px solid var(--color-divider);
    border-radius: 2rem;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.reader-header .toc-link:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

/* ---------- 主容器 ---------- */
.reader {
    width: 100%;
    max-width: var(--max-read);
    margin: 0 auto;
    padding: 2.5rem clamp(1.1rem, 5vw, 1.5rem) 3rem;
    flex: 1;
}

.reader.wide {
    max-width: var(--max-wide);
}

/* ---------- 著陸頁封面 ---------- */
.cover {
    text-align: center;
    padding: 2.5rem 0 1rem;
}

.cover .eyebrow {
    font-size: 0.85rem;
    letter-spacing: 0.34em;
    color: var(--color-accent);
    padding-left: 0.34em;
}

.cover-title {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(2.6rem, 9vw, 4rem);
    font-weight: 700;
    letter-spacing: 0.18em;
    padding-left: 0.18em;
    margin: 1.2rem 0 0.6rem;
}

.cover-sub {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(1rem, 3vw, 1.2rem);
    letter-spacing: 0.16em;
    color: var(--color-muted);
}

.rule {
    width: 56px;
    height: 1px;
    background: var(--color-divider);
    margin: 2.2rem auto;
}

.cover-lead {
    max-width: 34rem;
    margin: 0 auto;
    text-align: left;
    color: var(--color-text);
}

.cover-lead p {
    margin-bottom: 1.1rem;
}

/* ---------- 目錄（部 / 章卡片） ---------- */
.toc {
    margin-top: 3rem;
}

.toc-part {
    margin: 2.6rem 0;
}

.part-title {
    font-family: 'Noto Serif TC', serif;
    text-align: center;
    margin-bottom: 1.4rem;
}

.part-title .part-label {
    display: block;
    font-size: 0.82rem;
    letter-spacing: 0.4em;
    color: var(--color-accent);
    padding-left: 0.4em;
    margin-bottom: 0.4rem;
}

.part-title .part-name {
    font-size: 1.3rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    color: var(--color-text);
}

.chapter-cards {
    list-style: none;
    display: grid;
    gap: 0.9rem;
}

@media (min-width: 620px) {
    .chapter-cards {
        grid-template-columns: 1fr 1fr;
    }
}

.chapter-card {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    height: 100%;
    border: 1px solid var(--color-divider);
    border-radius: 0.55rem;
    background: var(--color-card);
    padding: 1.2rem 1.3rem;
    transition: all 0.25s ease;
}

.chapter-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.45);
}

.chapter-card .ch-num {
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    color: var(--color-accent);
}

.chapter-card .ch-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.22rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--color-text);
    line-height: 1.5;
}

.chapter-card .ch-desc {
    font-size: 0.9rem;
    line-height: 1.75;
    color: var(--color-muted);
    margin-top: 0.15rem;
}

/* ---------- 篇章閱讀頁 ---------- */
.progress {
    text-align: center;
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    color: var(--color-accent);
    margin-bottom: 1.4rem;
}

.chapter-head {
    text-align: center;
    margin-bottom: 2.6rem;
}

.chapter-head .eyebrow {
    font-size: 0.82rem;
    letter-spacing: 0.26em;
    color: var(--color-accent);
    padding-left: 0.26em;
}

.chapter-head h1 {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(1.9rem, 6vw, 2.6rem);
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.5;
    margin: 0.9rem 0 1.3rem;
}

.chapter-head .chapter-lead {
    max-width: 30rem;
    margin: 0 auto;
    font-family: 'Noto Serif TC', serif;
    font-size: 1.05rem;
    color: var(--color-muted);
    font-style: italic;
}

.chapter-head .rule {
    margin: 1.6rem auto 0;
}

/* 內文 */
.prose p {
    margin: 0 0 1.5rem;
    font-size: 1.06rem;
    letter-spacing: 0.01em;
    text-align: justify;
}

.prose .subhead {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin: 2.8rem 0 1.3rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-divider);
}

.prose .subhead:first-child {
    margin-top: 0;
}

/* 行內強調金句 */
.prose blockquote.pull {
    margin: 2rem 0;
    padding: 0.3rem 0 0.3rem 1.3rem;
    border-left: 3px solid var(--color-accent);
    font-family: 'Noto Serif TC', serif;
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.85;
    letter-spacing: 0.04em;
    color: var(--color-text);
}

/* 署名 */
.prose .sign {
    text-align: right;
    font-family: 'Noto Serif TC', serif;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-top: 2rem;
}

/* 內修心法卡片（定義式清單） */
.method-list {
    list-style: none;
    display: grid;
    gap: 0.8rem;
    margin: 1.8rem 0 2rem;
    counter-reset: method;
}

.method-list li {
    position: relative;
    border: 1px solid var(--color-divider);
    border-radius: 0.5rem;
    background: var(--color-card);
    padding: 1.05rem 1.2rem 1.05rem 3.2rem;
}

.method-list li::before {
    counter-increment: method;
    content: counter(method, decimal-leading-zero);
    position: absolute;
    left: 1.1rem;
    top: 1.05rem;
    font-family: 'Noto Serif TC', serif;
    font-size: 0.95rem;
    color: var(--color-accent);
    letter-spacing: 0.05em;
}

.method-list .term {
    display: block;
    font-family: 'Noto Serif TC', serif;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-text);
    margin-bottom: 0.2rem;
}

.method-list .desc {
    font-size: 0.98rem;
    color: var(--color-muted);
}

/* 話頭提問列表 */
.koan {
    list-style: none;
    display: grid;
    gap: 0.65rem;
    margin: 1.6rem 0 2rem;
}

.koan li {
    padding: 0.55rem 0 0.55rem 1.4rem;
    border-left: 2px solid var(--color-divider);
    font-family: 'Noto Serif TC', serif;
    font-size: 1.08rem;
    line-height: 1.8;
    color: var(--color-text);
}

/* 本章金句 */
.golden {
    margin: 3rem 0 1rem;
    border: 1px solid var(--color-divider);
    border-radius: 0.6rem;
    background: rgba(214, 184, 118, 0.06);
    padding: 1.8rem 1.6rem;
}

.golden h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-align: center;
    color: var(--color-accent);
    padding-left: 0.22em;
    margin-bottom: 1.4rem;
}

.golden blockquote {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.18rem;
    line-height: 1.85;
    letter-spacing: 0.04em;
    text-align: center;
    color: var(--color-text);
    margin: 1rem 0;
}

.golden blockquote + blockquote {
    padding-top: 1rem;
    border-top: 1px dashed var(--color-divider);
}

/* 上一章 / 目錄 / 下一章 */
.chapter-nav {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.8rem;
    align-items: stretch;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-divider);
}

.chapter-nav a {
    display: flex;
    flex-direction: column;
    justify-content: center;
    border: 1px solid var(--color-divider);
    border-radius: 0.5rem;
    background: var(--color-card);
    padding: 0.9rem 1.1rem;
    transition: all 0.25s ease;
}

.chapter-nav a:hover {
    border-color: var(--color-accent);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
}

.chapter-nav .nav-prev {
    text-align: left;
}

.chapter-nav .nav-next {
    text-align: right;
}

.chapter-nav .nav-label {
    font-size: 0.74rem;
    letter-spacing: 0.18em;
    color: var(--color-accent);
}

.chapter-nav .nav-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 0.98rem;
    font-weight: 500;
    color: var(--color-text);
    margin-top: 0.2rem;
    line-height: 1.5;
}

.chapter-nav .nav-toc {
    justify-content: center;
    align-items: center;
    text-align: center;
    letter-spacing: 0.16em;
    font-size: 0.9rem;
    color: var(--color-accent);
    padding: 0.9rem 1rem;
}

.chapter-nav .nav-spacer {
    border: none;
    background: none;
    box-shadow: none;
    cursor: default;
}

.chapter-nav .nav-spacer:hover {
    border: none;
    box-shadow: none;
}

/* ---------- 頁尾 ---------- */
.reader-footer {
    text-align: center;
    padding: 2.2rem 1.5rem;
    border-top: 1px solid var(--color-divider);
    color: var(--color-muted);
    font-size: 0.85rem;
}

.reader-footer a {
    color: var(--color-accent);
}

.reader-footer p {
    margin: 0.35rem 0;
}

.reader-footer .copyright {
    opacity: 0.7;
    font-size: 0.8rem;
}

/* ---------- 手機 ---------- */
@media (max-width: 480px) {
    .reader {
        padding: 1.8rem 1.1rem 2.4rem;
    }
    .prose p {
        font-size: 1.02rem;
        line-height: 1.9;
    }
    .chapter-nav {
        grid-template-columns: 1fr;
    }
    .chapter-nav .nav-next {
        text-align: left;
    }
    .chapter-nav .nav-toc {
        order: 3;
    }
}

/* ===================== 第一階段：練習夥伴 ===================== */

/* ---------- 主視覺：圓相 ---------- */
.cover {
    position: relative;
    overflow: hidden;
}

.enso {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -56%);
    width: min(82vw, 480px);
    height: auto;
    pointer-events: none;
    z-index: 0;
}

.enso circle {
    fill: none;
    stroke: var(--color-accent);
    stroke-width: 4.5;
    stroke-linecap: round;
    stroke-dasharray: 432 80;
    transform: rotate(-48deg);
    transform-origin: center;
    opacity: 0.42;
}

.cover-inner {
    position: relative;
    z-index: 1;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2.2rem;
}

/* ---------- 按鈕 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.7rem 1.7rem;
    border-radius: 2rem;
    border: 1px solid var(--color-accent);
    font: inherit;
    letter-spacing: 0.12em;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s ease;
}

.btn-primary {
    background: var(--color-accent);
    color: #1b1813;
}

.btn-primary:hover {
    background: #e6c98d;
    border-color: #e6c98d;
}

.btn-ghost {
    background: transparent;
    color: var(--color-accent);
}

.btn-ghost:hover {
    background: rgba(214, 184, 118, 0.12);
}

/* ---------- 功能區塊（練習 / 百日） ---------- */
.feature {
    margin: 4.5rem 0;
    scroll-margin-top: 5rem;
}

.feature-head {
    text-align: center;
    max-width: 36rem;
    margin: 0 auto 2.2rem;
}

.feature-head h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(1.6rem, 4.5vw, 2.1rem);
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-text);
    margin-bottom: 0.8rem;
}

.feature-head .feature-lead {
    color: var(--color-muted);
    font-size: 0.98rem;
}

/* ---------- 觀呼吸計時器 ---------- */
.practice-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}

.timer-panel,
.practice-note {
    border: 1px solid var(--color-divider);
    border-radius: 0.6rem;
    background: var(--color-card);
    padding: 2rem;
}

.timer-panel {
    display: grid;
    justify-items: center;
    align-content: center;
    gap: 1.4rem;
}

.timer-ring {
    width: min(244px, 64vw);
    aspect-ratio: 1;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: conic-gradient(var(--color-accent) var(--progress, 0%), rgba(214, 184, 118, 0.14) 0);
    transition: background 0.5s linear;
}

.timer-core {
    width: 80%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: #1b1813;
    display: grid;
    place-items: center;
    text-align: center;
    box-shadow: inset 0 0 44px rgba(0, 0, 0, 0.55);
}

.timer-time {
    display: block;
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(2.4rem, 7vw, 3.2rem);
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.timer-label {
    display: block;
    margin-top: 0.4rem;
    color: var(--color-muted);
    font-size: 0.9rem;
    letter-spacing: 0.18em;
}

.timer-presets,
.timer-controls {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: center;
}

.chip {
    border: 1px solid var(--color-divider);
    background: transparent;
    color: var(--color-muted);
    border-radius: 2rem;
    padding: 0.45rem 1.05rem;
    cursor: pointer;
    font: inherit;
    transition: all 0.2s ease;
}

.chip:hover,
.chip.is-active {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.practice-note {
    display: grid;
    align-content: center;
    gap: 1.1rem;
}

.practice-note blockquote {
    margin: 0;
    border-left: 3px solid var(--color-accent);
    padding-left: 1rem;
    font-family: 'Noto Serif TC', serif;
    font-size: 1.12rem;
    line-height: 1.95;
    color: var(--color-text);
}

.practice-note blockquote + blockquote {
    margin-top: 0.2rem;
}

.practice-note .src {
    color: var(--color-muted);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

.practice-note .src a {
    color: var(--color-accent);
}

/* ---------- 百日基本功 tracker ---------- */
.tracker {
    display: grid;
    justify-items: center;
    gap: 1.6rem;
}

.tracker-stats {
    display: flex;
    gap: 2.6rem;
}

.tracker-stats div {
    text-align: center;
}

.tracker-stats strong {
    display: block;
    font-family: 'Noto Serif TC', serif;
    font-size: 2.2rem;
    line-height: 1;
    color: var(--color-accent);
}

.tracker-stats span {
    display: block;
    margin-top: 0.4rem;
    color: var(--color-muted);
    font-size: 0.82rem;
    letter-spacing: 0.14em;
}

.hundred-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 6px;
    width: min(100%, 430px);
}

.day-cell {
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    border: 1px solid var(--color-divider);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.02);
    font-size: 0.6rem;
    color: transparent;
    transition: all 0.25s ease;
}

.day-cell.done {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #1b1813;
}

.tracker-controls {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-mini {
    border: 1px solid var(--color-divider);
    background: transparent;
    color: var(--color-muted);
    border-radius: 2rem;
    padding: 0.5rem 1.1rem;
    cursor: pointer;
    font: inherit;
    transition: all 0.2s ease;
}

.btn-mini:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

#markToday.is-done {
    background: transparent;
    color: var(--color-accent);
}

#markToday:disabled {
    cursor: default;
    opacity: 1;
}

.pulse {
    animation: pulse 1.1s ease 2;
}

@keyframes pulse {
    50% {
        box-shadow: 0 0 0 7px rgba(214, 184, 118, 0.28);
    }
}

.tracker-note {
    color: var(--color-muted);
    font-size: 0.8rem;
    text-align: center;
}

@media (max-width: 720px) {
    .practice-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .tracker-stats {
        gap: 1.8rem;
    }
    .hero-ctas .btn {
        width: 100%;
    }
}

/* ===================== 閱讀回訪：進度條 / 接續閱讀 / 每日一句 / 金句集 ===================== */

/* 閱讀進度條（章節頁） */
.read-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 20;
    pointer-events: none;
}

.read-progress span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--color-accent);
    transition: width 0.12s linear;
}

/* 接續閱讀（著陸頁） */
.resume {
    max-width: var(--max-read);
    margin: 0 auto 1.4rem;
}

.resume a {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    border: 1px solid var(--color-accent);
    border-radius: 0.6rem;
    background: rgba(214, 184, 118, 0.08);
    padding: 0.9rem 1.2rem;
    transition: all 0.25s ease;
}

.resume a:hover {
    background: rgba(214, 184, 118, 0.16);
}

.resume .resume-eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    color: var(--color-accent);
    white-space: nowrap;
}

.resume .resume-title {
    font-family: 'Noto Serif TC', serif;
    font-weight: 500;
    color: var(--color-text);
}

/* 每日一句（著陸頁） */
.daily {
    text-align: center;
    max-width: 40rem;
    margin: 3.5rem auto;
}

.daily .daily-label {
    font-size: 0.8rem;
    letter-spacing: 0.28em;
    color: var(--color-accent);
    padding-left: 0.28em;
}

.daily blockquote {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(1.3rem, 4vw, 1.7rem);
    line-height: 1.85;
    letter-spacing: 0.04em;
    color: var(--color-text);
    margin: 1.2rem 0 0.9rem;
}

.daily .daily-src a {
    color: var(--color-muted);
    font-size: 0.9rem;
    border-bottom: 1px dotted var(--color-divider);
}

.daily .daily-src a:hover {
    color: var(--color-accent);
}

.daily .daily-more {
    display: inline-block;
    margin-top: 1.5rem;
    color: var(--color-accent);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

/* 金句集頁 */
.quote-collection {
    display: grid;
    gap: 2.2rem;
    margin-top: 1rem;
}

.quote-chapter h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-divider);
}

.quote-chapter h2 a {
    color: inherit;
}

.quote-chapter h2 a:hover {
    color: var(--color-text);
}

.quote-chapter blockquote {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.18rem;
    line-height: 1.9;
    letter-spacing: 0.04em;
    color: var(--color-text);
    margin: 0.9rem 0;
    padding-left: 1rem;
    border-left: 3px solid var(--color-divider);
}