/* lesson.css — Phase 6 Lesson Reading.
 * Long-form reading page: title + mentor intro + narrative + inline exercises.
 * Scoped under .lesson-page. Uses tokens.css + Source Serif 4 for body. */

.lesson-page {
    font-family: var(--font-ui);
    background: var(--bg);
    color: var(--ink);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
.lesson-page *, .lesson-page *::before, .lesson-page *::after { box-sizing: border-box; }
.lesson-page a { color: inherit; text-decoration: none; }

/* ─── Locked screen (рано открывать урок) ────────────────────────── */
.lp-locked {
    min-height: 100vh;
    display: grid; place-items: center;
    padding: 32px;
}
.lp-locked__card {
    background: var(--surface);
    border: 1px solid var(--divider);
    border-radius: 20px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.08);
    padding: 40px 36px;
    max-width: 480px; text-align: center;
}
.lp-locked__icon {
    font-size: 44px; line-height: 1;
    margin-bottom: 16px;
}
.lp-locked__title {
    margin: 0 0 12px;
    font-family: var(--font-serif);
    font-size: 28px; font-weight: 700;
    letter-spacing: -0.02em; color: var(--ink);
}
.lp-locked__text {
    margin: 0 0 26px;
    font-size: 15px; line-height: 1.6; color: var(--sub);
}
.lp-locked__actions {
    display: flex; flex-direction: column; gap: 10px;
}
.lp-locked__btn {
    padding: 13px 22px; border-radius: 11px;
    font-size: 14px; font-weight: 700;
    font-family: var(--font-ui);
    cursor: pointer; text-decoration: none;
    display: inline-flex; align-items: center; justify-content: center;
}
.lp-locked__btn--primary {
    background: var(--accent); color: #fff;
    box-shadow: 0 6px 14px rgba(59,130,246,0.3);
}
.lp-locked__btn--secondary {
    background: transparent; color: var(--ink);
    border: 1.5px solid var(--divider);
}

/* ─── Top bar ─────────────────────────────────────────────────────── */
.lp-topbar {
    position: sticky; top: 0; z-index: 10;
    background: rgba(245, 244, 240, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--divider);
    padding: 12px 32px;
    display: flex; align-items: center; gap: 22px;
}
.lp-logo {
    display: flex; align-items: center; gap: 10px;
}
.lp-logo__mark {
    width: 30px; height: 30px; border-radius: 7px;
    background: var(--brand-grad);
    display: grid; place-items: center;
    color: #fff; font-family: var(--font-mono);
    font-weight: 700; font-size: 12px;
}
.lp-crumbs {
    font-family: var(--font-mono); font-size: 11.5px; color: var(--sub);
    display: flex; gap: 8px; align-items: center;
}
.lp-crumbs__sep { color: var(--faint); }
.lp-crumbs__current { color: var(--ink); font-weight: 700; }

.lp-topbar__progress {
    flex: 1; display: flex; align-items: center; gap: 14px;
    max-width: 380px;
}
.lp-topbar__progress-label {
    font-family: var(--font-mono); font-size: 11px; color: var(--faint);
    white-space: nowrap;
}
.lp-topbar__progress-bar {
    flex: 1; height: 5px;
    background: var(--divider); border-radius: 999px;
    overflow: hidden;
}
.lp-topbar__progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--f-blue) 0%, var(--f-purple) 100%);
    border-radius: 999px;
    transition: width 0.3s ease;
}
.lp-topbar__metrics {
    display: flex; gap: 14px;
    font-family: var(--font-mono); font-size: 11.5px; color: var(--sub);
}
.lp-topbar__metric-label { color: var(--faint); margin-right: 4px; }
.lp-topbar__metric-val { color: var(--ink); font-weight: 700; }
.lp-topbar__metric-val--success { color: var(--success); }

.lp-topbar__nav {
    background: transparent;
    border: 1.5px solid var(--divider);
    padding: 7px 12px; border-radius: 8px;
    font-size: 12.5px; font-weight: 600; color: var(--ink);
    font-family: var(--font-ui);
}
.lp-topbar__nav--task {
    background: var(--accent); color: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 10px rgba(59,130,246,0.25);
}

/* ─── Article container ──────────────────────────────────────────── */
.lp-article {
    max-width: 760px; margin: 0 auto;
    padding: 40px 32px 60px;
}

/* ─── Title block ────────────────────────────────────────────────── */
.lp-title-block { margin-bottom: 32px; }
.lp-title-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 4px 12px; margin-bottom: 14px;
    background: #1a1a17; color: #fff;
    border-radius: 999px;
    font-size: 11px; font-weight: 700;
    font-family: var(--font-mono); letter-spacing: 0.04em;
}
.lp-title-h1 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 44px; font-weight: 700;
    line-height: 1.1; letter-spacing: -0.02em;
    color: var(--ink);
}
.lp-title-sub {
    margin: 14px 0 0;
    font-size: 17px; color: var(--sub);
    line-height: 1.5;
    font-family: var(--font-serif); font-style: italic;
}

/* ─── Mentor intro card ──────────────────────────────────────────── */
.lp-mentor {
    display: flex; gap: 18px; align-items: flex-start;
    border: 1px solid;
    border-radius: 16px;
    padding: 22px;
    margin-bottom: 32px;
    position: relative;
}
/* Per-mentor color schemes */
.lp-mentor[data-mentor="anna"]      { background: #fce7f3; border-color: #fbcfe8; color: #831843; }
.lp-mentor[data-mentor="maxim"]     { background: #dbeafe; border-color: #bfdbfe; color: #1e3a8a; }
.lp-mentor[data-mentor="knopych"]   { background: #d1fae5; border-color: #a7f3d0; color: #064e3b; }
.lp-mentor[data-mentor="klavochka"] { background: #fef3c7; border-color: #fde68a; color: #451a03; }

.lp-mentor::after {
    content: '';
    position: absolute; left: 70px; top: -1px;
    width: 0; height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom-width: 8px; border-bottom-style: solid;
    border-bottom-color: inherit;
}
.lp-mentor[data-mentor="anna"]::after      { border-bottom-color: #fbcfe8; }
.lp-mentor[data-mentor="maxim"]::after     { border-bottom-color: #bfdbfe; }
.lp-mentor[data-mentor="knopych"]::after   { border-bottom-color: #a7f3d0; }
.lp-mentor[data-mentor="klavochka"]::after { border-bottom-color: #fde68a; }

.lp-mentor__portrait { flex-shrink: 0; }
.lp-mentor__body { flex: 1; }
.lp-mentor__name {
    font-size: 14px; font-weight: 700;
}
.lp-mentor__role {
    font-size: 10.5px;
    font-family: var(--font-mono);
    letter-spacing: 0.06em;
    margin-left: 8px;
    opacity: 0.75;
}
.lp-mentor__quote {
    font-size: 14px; line-height: 1.55;
    font-family: var(--font-serif);
    margin-top: 4px;
}

/* ─── Narrative paragraphs ───────────────────────────────────────── */
.lp-p {
    margin: 0 0 22px;
    font-family: var(--font-serif);
    font-size: 19px; line-height: 1.65;
    color: rgba(26, 26, 23, 0.85);
}
.lp-p--lead {
    font-size: 21px; line-height: 1.55;
    color: var(--ink); font-weight: 500;
}
.lp-p--drop::first-letter {
    float: left;
    font-family: var(--font-serif);
    font-size: 64px; line-height: 0.85;
    font-weight: 700;
    margin-right: 8px; margin-top: 4px;
    color: var(--accent);
}

/* ─── Pull quote ─────────────────────────────────────────────────── */
.lp-quote {
    margin: 14px 0 28px;
    padding: 0 0 0 24px;
    border-left: 4px solid var(--accent);
    font-family: var(--font-serif);
    font-size: 22px; line-height: 1.4;
    color: var(--ink); font-style: italic;
}
.lp-quote__by {
    display: block;
    font-style: normal;
    font-family: var(--font-ui);
    font-size: 12px; color: var(--faint);
    margin-top: 10px;
    font-weight: 600; letter-spacing: 0.02em;
}

/* ─── Callout ────────────────────────────────────────────────────── */
.lp-callout {
    background: #fef9c3;
    border: 1px solid #fde68a;
    border-radius: 12px;
    padding: 14px 18px;
    margin: 0 0 26px;
    display: flex; gap: 12px; align-items: flex-start;
}
.lp-callout__icon { font-size: 18px; line-height: 1; }
.lp-callout__title {
    font-size: 13px; font-weight: 700;
    color: #713f12; margin-bottom: 4px;
}
.lp-callout__text {
    font-size: 14px; color: #451a03;
    line-height: 1.5; font-family: var(--font-serif);
}

/* ─── Inline exercise (preview card) ─────────────────────────────── */
.lp-exercise {
    background: linear-gradient(180deg, #fbfaf6 0%, #f5f4f0 100%);
    border: 1.5px solid var(--f-blue);
    border-radius: 16px;
    padding: 22px;
    margin: 8px 0 32px;
    position: relative;
    box-shadow: 0 8px 24px rgba(116,185,255,0.13);
}
.lp-exercise[data-finger="pink"]   { border-color: var(--f-pink);   box-shadow: 0 8px 24px rgba(255,118,117,0.13); }
.lp-exercise[data-finger="orange"] { border-color: var(--f-orange); box-shadow: 0 8px 24px rgba(253,203,110,0.13); }
.lp-exercise[data-finger="green"]  { border-color: var(--f-green);  box-shadow: 0 8px 24px rgba(0,184,148,0.13); }
.lp-exercise[data-finger="indigo"] { border-color: var(--f-indigo); box-shadow: 0 8px 24px rgba(74,144,226,0.13); }
.lp-exercise[data-finger="purple"] { border-color: var(--f-purple); box-shadow: 0 8px 24px rgba(162,155,254,0.13); }

.lp-exercise__hd {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 14px;
}
.lp-exercise__badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 3px 10px; border-radius: 999px;
    background: var(--f-blue); color: #fff;
    font-size: 10.5px; font-weight: 700;
    font-family: var(--font-mono); letter-spacing: 0.05em;
}
.lp-exercise[data-finger="pink"]   .lp-exercise__badge { background: var(--f-pink); }
.lp-exercise[data-finger="orange"] .lp-exercise__badge { background: var(--f-orange); }
.lp-exercise[data-finger="green"]  .lp-exercise__badge { background: var(--f-green); }
.lp-exercise[data-finger="indigo"] .lp-exercise__badge { background: var(--f-indigo); }
.lp-exercise[data-finger="purple"] .lp-exercise__badge { background: var(--f-purple); }

.lp-exercise__hint {
    display: flex; align-items: center; gap: 8px;
    font-size: 11.5px; color: var(--sub);
    font-family: var(--font-mono);
}
.lp-exercise__hint-dot {
    display: inline-block; width: 10px; height: 10px;
    border-radius: 2px; background: var(--f-blue);
}
.lp-exercise[data-finger="pink"]   .lp-exercise__hint-dot { background: var(--f-pink); }
.lp-exercise[data-finger="orange"] .lp-exercise__hint-dot { background: var(--f-orange); }
.lp-exercise[data-finger="green"]  .lp-exercise__hint-dot { background: var(--f-green); }
.lp-exercise[data-finger="indigo"] .lp-exercise__hint-dot { background: var(--f-indigo); }
.lp-exercise[data-finger="purple"] .lp-exercise__hint-dot { background: var(--f-purple); }

.lp-exercise__target {
    background: var(--surface);
    border: 1px solid var(--divider);
    border-radius: 12px;
    padding: 18px 22px;
    margin-bottom: 14px;
    font-family: var(--font-mono);
    font-size: 22px; line-height: 1.5;
    color: var(--ink); letter-spacing: 0.04em;
    white-space: pre-wrap; word-break: break-word;
}
.lp-exercise__meta {
    display: flex; gap: 4px; align-items: center;
}
.lp-exercise__dots { display: flex; gap: 3px; flex: 1; }
.lp-exercise__dot {
    flex: 1; height: 7px; border-radius: 4px;
    background: #e5e3da;
}
.lp-exercise__count {
    font-family: var(--font-mono); font-size: 11px;
    color: var(--sub); margin-left: 12px;
    min-width: 60px; text-align: right;
}
.lp-exercise__done-badge {
    margin-left: 12px;
    display: inline-flex; align-items: center; gap: 4px;
    padding: 5px 10px; border-radius: 7px;
    background: var(--success-bg, #f0fdf4);
    color: var(--success, #10b981);
    font-family: var(--font-ui); font-size: 12px; font-weight: 700;
}
.lp-exercise__open {
    margin-left: 12px;
    padding: 8px 14px;
    background: var(--accent); color: #fff;
    border: none; border-radius: 8px;
    font-size: 12.5px; font-weight: 700;
    font-family: var(--font-ui);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex; align-items: center; gap: 6px;
    box-shadow: 0 6px 14px rgba(59,130,246,0.25);
}

/* ─── Гайдед-шаги (lesson.guided): placement + drill с гейтингом ──── */
.lp-exercise__target--preview {
    /* Превью текста шага — не редактируется, без курсора набора. */
    opacity: 0.85;
    cursor: default;
    user-select: none;
}
.lp-step__open { margin-left: auto; }
.lp-exercise--step .lp-exercise__meta { align-items: center; }
.lp-exercise--done .lp-exercise__target--preview { opacity: 0.5; }
/* Заблокированный шаг — затемнён, без кнопки. */
.lp-exercise--locked {
    opacity: 0.55;
    filter: grayscale(0.4);
}
.lp-step__lock {
    margin-left: auto;
    font-size: 12px; font-weight: 600;
    color: var(--sub, #6b7280);
    display: inline-flex; align-items: center; gap: 4px;
}
/* Заблокированная кнопка финального захода. */
.lp-exercise__open--locked {
    background: var(--divider, #d1d5db) !important;
    box-shadow: none !important;
    cursor: not-allowed;
    pointer-events: none;
}

/* ─── Inline ExerciseInsert (по design lesson.jsx) ───────────────── */
.lp-exercise--inline { cursor: text; }
.lp-exercise--inline.lp-exercise--focus { box-shadow: 0 8px 24px rgba(116,185,255,0.28); }
.lp-exercise--inline.lp-exercise--done {
    border-color: var(--success);
    box-shadow: none;
}
.lp-exercise--inline.lp-exercise--done .lp-exercise__badge { background: var(--success); }
.lp-exercise--inline .lp-exercise__target {
    cursor: text;
    white-space: normal; word-break: normal; overflow-wrap: normal;
}
.lp-exercise__target .word { white-space: nowrap; }
.lp-exercise__target .ch {
    color: var(--faint); padding: 1px 1px;
    border-bottom: 2px solid transparent;
    transition: color 0.1s ease;
}
.lp-exercise__target .ch.done { color: var(--success); }
.lp-exercise__target .ch.err  { color: #fff; background: var(--error); border-radius: 3px; }
.lp-exercise__target .ch.cur  { color: var(--ink); background: rgba(116,185,255,0.22); border-bottom-color: var(--f-blue); }
.lp-exercise[data-finger="pink"]   .ch.cur { background: rgba(255,118,117,0.22);  border-bottom-color: var(--f-pink); }
.lp-exercise[data-finger="orange"] .ch.cur { background: rgba(253,203,110,0.22);  border-bottom-color: var(--f-orange); }
.lp-exercise[data-finger="green"]  .ch.cur { background: rgba(0,184,148,0.22);    border-bottom-color: var(--f-green); }
.lp-exercise[data-finger="indigo"] .ch.cur { background: rgba(74,144,226,0.22);   border-bottom-color: var(--f-indigo); }
.lp-exercise[data-finger="purple"] .ch.cur { background: rgba(162,155,254,0.22);  border-bottom-color: var(--f-purple); }
.lp-exercise__capture {
    position: absolute; opacity: 0;
    pointer-events: none; width: 1px; height: 1px;
}
.lp-exercise__dot.on { background: var(--f-blue); }
.lp-exercise[data-finger="pink"]   .lp-exercise__dot.on { background: var(--f-pink); }
.lp-exercise[data-finger="orange"] .lp-exercise__dot.on { background: var(--f-orange); }
.lp-exercise[data-finger="green"]  .lp-exercise__dot.on { background: var(--f-green); }
.lp-exercise[data-finger="indigo"] .lp-exercise__dot.on { background: var(--f-indigo); }
.lp-exercise[data-finger="purple"] .lp-exercise__dot.on { background: var(--f-purple); }
.lp-exercise--done .lp-exercise__dot.on { background: var(--success); }
.lp-exercise__reset {
    margin-left: 12px; padding: 6px 12px;
    background: transparent; border: 1px solid var(--divider);
    border-radius: 7px;
    font-size: 11px; color: var(--sub);
    font-family: var(--font-ui); font-weight: 600;
    cursor: pointer;
}
.lp-exercise__reset:hover { background: var(--bg-alt); }

/* ─── Figure placeholder ────────────────────────────────────────── */
.lp-figure {
    background: linear-gradient(135deg, rgba(116,185,255,0.10), rgba(116,185,255,0.04));
    border: 1px dashed var(--divider);
    border-radius: 12px;
    aspect-ratio: 16 / 9;
    margin: 8px 0 32px;
    display: grid; place-items: center;
    color: var(--faint);
    font-size: 13px; font-family: var(--font-mono);
}
.lp-figure[data-tone="pink"]   { background: linear-gradient(135deg, rgba(255,118,117,0.10), rgba(255,118,117,0.04)); }
.lp-figure[data-tone="orange"] { background: linear-gradient(135deg, rgba(253,203,110,0.10), rgba(253,203,110,0.04)); }
.lp-figure[data-tone="green"]  { background: linear-gradient(135deg, rgba(0,184,148,0.10), rgba(0,184,148,0.04)); }
.lp-figure[data-tone="indigo"] { background: linear-gradient(135deg, rgba(74,144,226,0.10), rgba(74,144,226,0.04)); }
.lp-figure[data-tone="purple"] { background: linear-gradient(135deg, rgba(162,155,254,0.10), rgba(162,155,254,0.04)); }
.lp-figure__label { padding: 0 24px; text-align: center; }

/* ─── Bottom nav (prev/next) ─────────────────────────────────────── */
.lp-nav {
    display: flex; justify-content: space-between; gap: 14px;
    margin-top: 36px; padding-top: 28px;
    border-top: 1px solid var(--divider);
}
.lp-nav__btn {
    flex: 1; max-width: 340px;
    padding: 14px 22px;
    border-radius: 12px;
    font-size: 14px;
    font-family: var(--font-ui);
    cursor: pointer; text-decoration: none;
    display: block;
}
.lp-nav__btn--prev {
    background: transparent;
    border: 1.5px solid var(--divider);
    color: var(--ink);
    font-weight: 600;
    text-align: left;
}
.lp-nav__btn--next {
    background: var(--accent); color: #fff;
    border: none;
    box-shadow: 0 6px 14px rgba(59,130,246,0.3);
    font-weight: 700;
    text-align: right;
}
.lp-nav__btn--disabled {
    opacity: 0.4; cursor: not-allowed; pointer-events: none;
}
.lp-nav__btn-hint {
    font-size: 10px; font-family: var(--font-mono);
    margin-bottom: 2px;
}
.lp-nav__btn--prev .lp-nav__btn-hint { color: var(--faint); }
.lp-nav__btn--next .lp-nav__btn-hint { opacity: 0.8; }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 960px) {
    .lp-topbar { padding: 10px 18px; gap: 14px; }
    .lp-crumbs { display: none; }
    .lp-topbar__metrics { display: none; }
    .lp-topbar__nav { display: none; }
    .lp-article { padding: 28px 18px 50px; }
    .lp-title-h1 { font-size: 32px; }
}
@media (max-width: 540px) {
    .lp-exercise__target { font-size: 17px; padding: 14px 16px; }
    .lp-exercise__open { padding: 6px 10px; font-size: 11.5px; }
    .lp-nav { flex-direction: column; gap: 10px; }
    .lp-nav__btn { max-width: 100%; }
}