:root {
    --bg: #f5ecd9;
    --surface: #ede0c4;
    --surface-strong: #d9c3a0;
    --surface-soft: #faf3e3;
    --paper: #fffaf0;
    --input-focus: #ffffff;
    --text: #4a3621;
    --muted: #7a5f43;
    --accent: #a07855;
    --accent-strong: #7a5230;
    --border: #c9b48f;
    --ok: #5a7a3a;
    --bad: #a44638;
    --ok-bg: #d9eac3;
    --ok-fg: #2f4a16;
    --bad-bg: #f1d1cc;
    --bad-fg: #5a1e15;
    --shadow: rgba(74, 54, 33, 0.12);
    --shadow-strong: rgba(74, 54, 33, 0.22);
    --primary-fg: #ffffff;
}

:root[data-theme="dark"] {
    --bg: #1f1813;
    --surface: #2a2018;
    --surface-strong: #3a2c1f;
    --surface-soft: #261d15;
    --paper: #2f251b;
    --input-focus: #36281c;
    --text: #ece0c5;
    --muted: #b59a73;
    --accent: #c89770;
    --accent-strong: #e3b48a;
    --border: #5a4530;
    --ok: #95b56c;
    --bad: #d97a64;
    --ok-bg: #3a4d22;
    --ok-fg: #cce0a3;
    --bad-bg: #5a2620;
    --bad-fg: #f3a89a;
    --shadow: rgba(0, 0, 0, 0.45);
    --shadow-strong: rgba(0, 0, 0, 0.6);
    --primary-fg: #1f1813;
}

html, body { color-scheme: light dark; }
:root[data-theme="dark"] { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.55;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1.25rem;
    width: 100%;
}

/* Header */
header {
    background: var(--surface-strong);
    border-bottom: 1px solid var(--border);
    padding: 0.9rem 0;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Search */
.search {
    position: relative;
    flex: 1 1 240px;
    max-width: 420px;
    min-width: 200px;
}
.search-input {
    width: 100%;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.42rem 1rem;
    font: inherit;
    color: var(--text);
    transition: border-color 0.15s, background 0.15s;
}
.search-input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--input-focus);
}
.search-input::placeholder {
    color: var(--muted);
}
.search-results {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 8px 22px var(--shadow-strong);
    max-height: 60vh;
    overflow-y: auto;
    z-index: 50;
    padding: 0.3rem;
}
.search-item {
    display: flex;
    gap: 0.85rem;
    align-items: center;
    padding: 0.55rem 0.65rem;
    border-radius: 8px;
}
.search-item + .search-item {
    border-top: 1px solid var(--border);
    margin-top: 0.1rem;
    padding-top: 0.6rem;
}
.search-item:hover { background: var(--surface); }
.si-char {
    font-family: "Noto Sans CJK SC", "Songti SC", "STSong", "PingFang SC", "Microsoft YaHei", serif;
    font-size: 2.1rem;
    color: var(--accent-strong);
    line-height: 1;
    min-width: 2.6rem;
    text-align: center;
}
.si-info { flex: 1; min-width: 0; }
.si-line {
    font-size: 0.95rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.3rem;
}
.si-meaning { color: var(--muted); }
.si-lessons {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 0.2rem;
}
.si-lessons .lesson-link {
    color: var(--accent);
    text-decoration: none;
}
.si-lessons .lesson-link:hover {
    color: var(--accent-strong);
    text-decoration: underline;
}
.si-lessons .sep { opacity: 0.6; }
.no-results {
    color: var(--muted);
    padding: 0.6rem 0.8rem;
    margin: 0;
    font-style: italic;
}
.brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--accent-strong);
    text-decoration: none;
    letter-spacing: 0.5px;
}
.top-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.top-nav a {
    color: var(--accent-strong);
    text-decoration: none;
    font-weight: 500;
}
.top-nav a:hover { color: var(--accent); text-decoration: underline; }
.user { color: var(--muted); }
.inline-form { display: inline; margin: 0; }
.link-button {
    background: none;
    border: none;
    color: var(--accent-strong);
    cursor: pointer;
    font: inherit;
    padding: 0;
}
.link-button:hover { color: var(--accent); text-decoration: underline; }

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 999px;
    width: 36px;
    height: 36px;
    padding: 0;
    font-size: 1.05rem;
    color: var(--accent-strong);
    cursor: pointer;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.theme-toggle:hover { background: var(--surface-soft); border-color: var(--accent); }

/* Layout: content + right sidebar */
.layout {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 2rem;
    padding-top: 1.75rem;
    padding-bottom: 2rem;
}
.content { min-width: 0; }
.sidebar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1rem 1.25rem;
    align-self: start;
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
}
.sidebar-title {
    margin: 0 0 0.6rem;
    font-size: 1rem;
    color: var(--accent-strong);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.sidebar-section { margin-bottom: 0.85rem; }

/* Streak widget */
.streak-card {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: var(--primary-fg);
    padding: 0.85rem 1rem;
    border-radius: 10px;
    text-align: center;
    border: 1px solid var(--accent-strong);
    box-shadow: 0 2px 8px var(--shadow);
}
.streak-card.zero {
    background: var(--surface-strong);
    color: var(--text);
    border-color: var(--border);
    box-shadow: none;
}
.streak-card.warning {
    background: linear-gradient(135deg, #c08a3a, var(--accent-strong));
}
.streak-num {
    font-size: 2.4rem;
    font-weight: 700;
    line-height: 1;
}
.streak-card.zero .streak-num { color: var(--muted); }
.streak-text {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.92;
    margin-top: 0.15rem;
}
.streak-meta {
    font-size: 0.74rem;
    opacity: 0.85;
    margin-top: 0.5rem;
    line-height: 1.3;
}
.streak-card.zero .streak-meta { color: var(--muted); opacity: 1; }
.sidebar-foot { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: flex-end; }
.sidebar-foot .link-button { white-space: nowrap; }
.sidebar-link {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.6rem;
    padding: 0.55rem 0.75rem;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--accent-strong);
    text-decoration: none;
    font-weight: 600;
}
.sidebar-link:hover { background: var(--surface); }
.sidebar-link.active {
    background: var(--accent);
    color: var(--primary-fg);
    border-color: var(--accent);
}
.sidebar-link.active .sidebar-link-sub { color: var(--primary-fg); opacity: 0.85; }
.sidebar-link-sub {
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--muted);
    text-transform: lowercase;
}

/* Dropdown nav groups */
.lesson-group {
    border-top: 1px solid var(--border);
    padding: 0.4rem 0;
}
.lesson-group:first-of-type { border-top: none; }
.lesson-group > summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--accent-strong);
    padding: 0.35rem 0.25rem;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 6px;
}
.lesson-group > summary::-webkit-details-marker { display: none; }
.lesson-group > summary::after {
    content: "▸";
    transition: transform 0.15s;
    color: var(--muted);
    font-size: 0.9em;
}
.lesson-group[open] > summary::after { transform: rotate(90deg); }
.lesson-group > summary:hover { background: var(--surface-soft); }
.lesson-group ul {
    list-style: none;
    margin: 0.25rem 0 0.5rem;
    padding-left: 0.6rem;
}
.lesson-group li { margin: 0.15rem 0; }
.lesson-group a {
    display: block;
    padding: 0.3rem 0.5rem;
    color: var(--text);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.95rem;
}
.lesson-group a:hover { background: var(--surface-soft); color: var(--accent-strong); }
.lesson-group a.active {
    background: var(--accent);
    color: var(--primary-fg);
    font-weight: 600;
}
.badge {
    background: var(--accent-strong);
    color: var(--primary-fg);
    border-radius: 9px;
    padding: 0 0.45em;
    font-size: 0.7em;
    margin-left: 0.25em;
    vertical-align: middle;
}
.lesson-group a.active .badge { background: var(--surface); color: var(--accent-strong); }

/* Progress marks in sidebar */
.progress-mark {
    margin-left: 0.4em;
    font-weight: 700;
    font-size: 0.92em;
}
.progress-mark.done { color: var(--ok); }
.progress-mark.partial { color: #c08a3a; }
.progress-mark.started { color: var(--muted); }
.lesson-group a.active .progress-mark.done,
.lesson-group a.active .progress-mark.partial,
.lesson-group a.active .progress-mark.started { color: #fff; }

.sidebar-foot {
    margin-top: 0.75rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--border);
    text-align: right;
}
.sidebar-foot .link-button { font-size: 0.85rem; color: var(--muted); }
.sidebar-foot .link-button:hover { color: var(--bad); }

/* Overall progress bar (home) */
.progress-overview {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
}
.progress-overview h2 { margin-top: 0; }
.progress-overview .bar {
    background: var(--surface-strong);
    border-radius: 999px;
    height: 14px;
    overflow: hidden;
    margin: 0.4rem 0 0.5rem;
}
.progress-overview .bar-fill {
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
    height: 100%;
    width: 0;
    transition: width 0.4s;
}
.progress-overview .bar-text { margin: 0; font-weight: 600; color: var(--accent-strong); }
.progress-overview .bar-hint { margin: 0.4rem 0 0; font-size: 0.88rem; color: var(--muted); }

/* Hero & lesson body */
.hero, .lesson {
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.75rem 2rem;
    box-shadow: 0 1px 2px var(--shadow);
}
h1 { margin-top: 0; color: var(--accent-strong); }
h2 { color: var(--accent-strong); margin-top: 1.6rem; }
a { color: var(--accent); }
a:hover { color: var(--accent-strong); }

.crumbs {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 0.25rem;
}

.lesson-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}
.lesson-body th, .lesson-body td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.lesson-body th { background: var(--surface-strong); color: var(--accent-strong); }
.lesson-body tr:last-child td { border-bottom: none; }
.lesson-body code { background: var(--surface); padding: 0.05em 0.35em; border-radius: 4px; }
.ch, .lesson-body .ch {
    font-size: 1.5em;
    font-family: "Noto Sans CJK SC", "Songti SC", "STSong", "PingFang SC", "Microsoft YaHei", serif;
}

/* Quiz */
.quiz {
    margin-top: 2rem;
    border-top: 2px dashed var(--border);
    padding-top: 1.25rem;
}
.questions { list-style: decimal; padding-left: 1.4rem; }
.question { margin-bottom: 1.25rem; }
.question-text { font-weight: 600; margin: 0 0 0.5rem; }
.choices {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.4rem;
}
.choice {
    width: 100%;
    text-align: left;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
    transition: background 0.15s, border-color 0.15s;
}
.choice:hover:not(:disabled) { background: var(--surface-strong); }
.choice.correct { background: var(--ok-bg); border-color: var(--ok); color: var(--ok-fg); }
.choice.wrong { background: var(--bad-bg); border-color: var(--bad); color: var(--bad-fg); }
.choice:disabled { cursor: default; opacity: 0.95; }
.feedback {
    margin: 0.45rem 0 0;
    font-size: 0.92rem;
    min-height: 1.2em;
    color: var(--muted);
}
.feedback.ok { color: var(--ok); }
.feedback.bad { color: var(--bad); }
.quiz-summary {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    margin-top: 0.5rem;
}
.primary {
    background: var(--accent-strong);
    color: var(--primary-fg);
    border: none;
    padding: 0.55rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
}
.primary:hover { background: var(--accent); }
.score { font-weight: 600; }

/* Drawing lesson */
.draw {
    margin-top: 1.5rem;
    border-top: 2px dashed var(--border);
    padding-top: 1.25rem;
}
.draw-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 1rem;
}
.draw-info p { margin: 0.15rem 0; }
.target-name { font-weight: 600; font-size: 1.05rem; }
.target-hint { color: var(--muted); }
.progress { color: var(--muted); font-size: 0.9rem; }
.draw-scoreboard {
    display: flex;
    gap: 0.75rem;
}
.draw-scoreboard > div {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.4rem 0.8rem;
    text-align: center;
    min-width: 88px;
    display: flex;
    flex-direction: column;
}
.draw-scoreboard .sb-label {
    font-size: 0.72rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.draw-scoreboard > div > span:last-child {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--accent-strong);
}

.hanzi-stage {
    background: var(--paper);
    border: 2px solid var(--border);
    border-radius: 12px;
    width: 320px;
    max-width: 100%;
    aspect-ratio: 1 / 1;
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.hanzi-stage svg { display: block; }
.hanzi-holder { width: 320px; height: 320px; }
.results-panel {
    text-align: center;
    color: var(--accent-strong);
}
.results-num {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
}
.results-sub {
    color: var(--muted);
    font-size: 1.05rem;
    margin-top: 0.25rem;
}

.anim-btn,
.speak-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.32rem 0.7rem;
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
    color: var(--accent-strong);
    line-height: 1.1;
}
.anim-btn:hover:not(:disabled),
.speak-btn:hover:not(:disabled) { background: var(--surface-strong); }
.anim-btn:disabled,
.speak-btn:disabled { opacity: 0.4; cursor: default; }
.speak-btn.playing { background: var(--accent); color: var(--primary-fg); border-color: var(--accent); }
.speak-btn { padding: 0.22rem 0.5rem; font-size: 1.05em; margin-left: 0.3em; }
.anim-btns {
    display: flex;
    gap: 0.3rem;
    margin-top: 0.35rem;
}
.anim-btns .speak-btn { margin-left: 0; }
.target-name .speak-btn { vertical-align: middle; }
.phrase-list { list-style: none; padding-left: 0; }
.phrase-list li { margin: 0.4rem 0; }

/* Inline stroke-order animations in lesson content */
.stroke-anim {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.55rem 0.7rem 0.5rem;
    margin: 0.5rem 0.6rem 0.5rem 0;
    vertical-align: middle;
}
.stroke-anim-inner {
    width: 110px;
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-strong);
}
.stroke-anim-inner.fallback {
    font-family: "Noto Sans CJK SC", "Songti SC", "STSong", "PingFang SC", serif;
    font-size: 4rem;
    line-height: 1;
}
.stroke-anim svg { display: block; }
.rules-list li { margin-bottom: 1rem; }
.rules-list li .stroke-anim { display: inline-flex; margin-top: 0.4rem; margin-left: 0; }

/* Compact stroke-anim inside character tables */
.char-table td {
    vertical-align: middle;
}
.char-table .stroke-anim {
    margin: 0;
    padding: 0.4rem;
    gap: 0.15rem;
    background: var(--surface-soft);
}
.char-table .stroke-anim-inner {
    width: 90px;
    height: 90px;
}
.char-table .stroke-anim-inner.fallback {
    font-size: 3.2rem;
}
.char-table .anim-btn,
.char-table .speak-btn {
    font-size: 0.78em;
    padding: 0.18rem 0.45rem;
}
.char-table .anim-btns { margin-top: 0.15rem; }
.char-table .speak-btn { margin-left: 0; }
.target-info p { margin: 0.15rem 0; }
.target-name { font-weight: 600; font-size: 1.05rem; }
.target-hint { color: var(--muted); }
.progress { color: var(--muted); font-size: 0.9rem; }

.draw-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}
.draw-controls button {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.5rem 0.95rem;
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
    color: var(--text);
}
.draw-controls button:hover:not(:disabled) { background: var(--surface-strong); }
.draw-controls button:disabled { opacity: 0.5; cursor: default; }
.draw-controls button.primary { background: var(--accent-strong); color: var(--primary-fg); border-color: var(--accent-strong); }
.draw-controls button.primary:hover:not(:disabled) { background: var(--accent); }
.draw-status { color: var(--muted); font-size: 0.94rem; min-height: 1.2em; margin: 0; }
.draw-status.ok { color: var(--ok); }
.draw-status.bad { color: var(--bad); font-weight: 600; }
.draw-status.done { color: var(--ok); font-weight: 600; }

/* Footer */
footer {
    background: var(--surface-strong);
    border-top: 1px solid var(--border);
    padding: 1rem 0;
    color: var(--muted);
    text-align: center;
}

/* Flashcards */
.fc-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 1.2rem;
    margin-top: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}
.fc-control { display: flex; align-items: center; gap: 0.5rem; }
.fc-control > span { color: var(--muted); font-size: 0.9rem; }
.fc-filter {
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    font: inherit;
    min-width: 220px;
}
.fc-progress { color: var(--muted); font-size: 0.95rem; }
.fc-progress > span { color: var(--text); font-weight: 600; }
.fc-dot { color: var(--border); margin: 0 0.2em; }

.fc-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.4rem;
    margin: 2rem 0 1rem;
    min-height: 360px;
}
.fc-empty { color: var(--muted); font-style: italic; }

.fc-card {
    perspective: 1200px;
    width: 280px;
    height: 340px;
    cursor: pointer;
    user-select: none;
}
.fc-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.55s;
}
.fc-card.flipped .fc-card-inner {
    transform: rotateY(180deg);
}
.fc-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 4px 16px var(--shadow);
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    text-align: center;
}
.fc-back { transform: rotateY(180deg); }
.fc-char {
    font-size: 7.5rem;
    color: var(--accent-strong);
    line-height: 1;
}
.fc-meta {
    font-size: 0.8rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0.4rem;
}
.fc-hint { color: var(--muted); font-size: 0.85rem; font-style: italic; margin-top: 0.6rem; }
.fc-pinyin { font-size: 2rem; color: var(--accent-strong); display: flex; align-items: center; gap: 0.5rem; }
.fc-meaning { font-size: 1.15rem; }
.fc-stroke-anim {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 56px;
}
.fc-anim-inner {
    background: var(--paper);
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 130px;
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fc-anim-inner.fallback {
    font-family: "Noto Sans CJK SC", "Songti SC", "STSong", serif;
    font-size: 4rem;
    color: var(--accent-strong);
}
.fc-lessons { font-size: 0.82rem; color: var(--muted); }
.fc-lessons a { color: var(--accent); text-decoration: none; margin: 0 0.2em; }
.fc-lessons a:hover { text-decoration: underline; color: var(--accent-strong); }

.fc-buttons { display: flex; gap: 1rem; }
.fc-btn {
    padding: 0.7rem 1.5rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    cursor: pointer;
    font: inherit;
    background: var(--surface);
    color: var(--text);
    font-weight: 600;
    transition: background 0.12s, transform 0.05s;
}
.fc-btn:active { transform: translateY(1px); }
.fc-btn.fc-yes { background: var(--ok); color: var(--primary-fg); border-color: var(--ok); }
.fc-btn.fc-yes:hover { filter: brightness(0.94); }
.fc-btn.fc-no { background: var(--bad); color: var(--primary-fg); border-color: var(--bad); }
.fc-btn.fc-no:hover { filter: brightness(0.94); }

.fc-summary {
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 2rem 2.5rem;
    box-shadow: 0 4px 16px var(--shadow);
}
.fc-summary h2 { margin-top: 0; }
.fc-summary-stats {
    display: flex;
    gap: 2.5rem;
    justify-content: center;
    margin: 1.2rem 0 1.6rem;
}
.fc-summary-stats > div {
    color: var(--muted);
    font-size: 0.95rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.fc-summary-stats > div > span {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--accent-strong);
    line-height: 1;
    margin-bottom: 0.2rem;
}

.fc-hotkeys {
    color: var(--muted);
    font-size: 0.85rem;
    margin-top: 1.4rem;
}
.fc-hotkeys kbd {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.05rem 0.4rem;
    font-family: inherit;
    font-size: 0.85em;
    color: var(--accent-strong);
}

/* Leaderboard */
.lb-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.25rem;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.2rem;
    margin: 1.2rem 0 1.6rem;
}
.lb-nick-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
}
.lb-field { display: flex; flex-direction: column; gap: 0.25rem; }
.lb-field-label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }
.lb-field input {
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.42rem 0.7rem;
    font: inherit;
    color: var(--text);
    min-width: 220px;
}
.lb-field input:focus { outline: none; border-color: var(--accent); background: var(--input-focus); }
.lb-status { font-size: 0.92rem; color: var(--muted); }
.lb-status.ok { color: var(--ok); font-weight: 600; }
.lb-status.bad { color: var(--bad); font-weight: 600; }

.lb-cards { display: flex; gap: 0.6rem; }
.lb-card {
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.55rem 0.85rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}
.lb-card-num {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--accent-strong);
    line-height: 1;
}
.lb-card-label {
    color: var(--muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.2rem;
}

.lb-scoring {
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.7rem 1.2rem;
    list-style: none;
    margin: 0.5rem 0 1.5rem;
}
.lb-scoring li { padding: 0.18rem 0; }

.lb-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}
.lb-table th, .lb-table td {
    padding: 0.55rem 0.85rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.lb-table th {
    background: var(--surface-strong);
    color: var(--accent-strong);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.lb-table tr:last-child td { border-bottom: none; }
.lb-table .lb-score { font-variant-numeric: tabular-nums; font-weight: 600; }
.lb-row-you {
    background: var(--surface-soft);
    font-weight: 600;
}
.lb-row-you td:first-child {
    border-left: 4px solid var(--accent);
}
.lb-empty {
    color: var(--muted);
    font-style: italic;
    text-align: center;
}

/* Charts on home */
.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}
.chart-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.1rem 0.85rem;
}
.chart-card h3 {
    margin: 0 0 0.7rem;
    color: var(--accent-strong);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.chart-caption {
    color: var(--muted);
    font-size: 0.83rem;
    margin: 0.7rem 0 0;
}
.chart-empty {
    color: var(--muted);
    font-style: italic;
    margin: 0;
}

.activity-strip {
    display: grid;
    grid-template-columns: repeat(28, 1fr);
    gap: 3px;
}
.activity-cell {
    aspect-ratio: 1 / 1;
    border-radius: 3px;
    background: var(--surface-strong);
    border: 1px solid transparent;
}
.activity-cell.lv-1 { background: color-mix(in srgb, var(--accent) 30%, var(--surface-strong)); }
.activity-cell.lv-2 { background: color-mix(in srgb, var(--accent) 55%, var(--surface-strong)); }
.activity-cell.lv-3 { background: color-mix(in srgb, var(--accent) 80%, var(--surface-strong)); }
.activity-cell.lv-4 { background: var(--accent-strong); }

.chart-legend {
    display: flex;
    gap: 4px;
    align-items: center;
    margin: 0.75rem 0 0;
    font-size: 0.78rem;
    color: var(--muted);
}
.chart-legend .activity-cell { width: 14px; aspect-ratio: 1 / 1; flex-shrink: 0; }
.legend-label { margin: 0 0.25rem; }

.completion-chart {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.cc-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 2.4fr) auto;
    gap: 0.6rem;
    align-items: center;
    font-size: 0.92rem;
}
.cc-label {
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.cc-bar {
    position: relative;
    height: 14px;
    background: var(--surface-strong);
    border-radius: 999px;
    overflow: hidden;
}
.cc-fill {
    height: 100%;
    background: var(--accent);
    transition: width 0.4s;
}
.cc-fill-perfect {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--accent-strong);
    transition: width 0.4s;
}
.cc-count {
    font-variant-numeric: tabular-nums;
    color: var(--muted);
    font-size: 0.86rem;
    text-align: right;
    white-space: nowrap;
}

/* Settings page */
.settings-page .settings-group {
    border-top: 1px solid var(--border);
    padding: 1.1rem 0;
}
.settings-page .settings-group:first-of-type { border-top: none; padding-top: 0; }
.settings-page .settings-group h2 { margin: 0 0 0.6rem; }
.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.4rem 0;
    flex-wrap: wrap;
}
.setting-label { color: var(--text); }
.setting-input {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.38rem 0.6rem;
    font: inherit;
    min-width: 220px;
}
.setting-input:focus { outline: none; border-color: var(--accent); }
.setting-aside {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.4rem;
}
.setting-hint { color: var(--muted); font-size: 0.88rem; }
.settings-data {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.6rem 0.85rem;
    margin-bottom: 0.9rem;
}
.settings-data-row {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    border-top: 1px dashed var(--border);
    font-size: 0.92rem;
}
.settings-data-row:first-child { border-top: none; }
.sdr-label { color: var(--muted); }
.sdr-value { color: var(--text); }
.settings-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.settings-actions .danger {
    background: var(--bad);
    color: var(--primary-fg);
    border-color: var(--bad);
}
.settings-actions .danger:hover { filter: brightness(0.94); }

/* Responsive */
@media (max-width: 880px) {
    .layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
        max-height: none;
    }
}