/*
 * style.css — RECONSTRUCTED 2026-08-31
 *
 * Оригинал уничтожен при инциденте обнуления файлов (2026-08-28);
 * точный полный исходник недоступен нигде. Файл реконструирован, чтобы
 * вернуть работающий UI для index.html / chat.js / app.js / cases.js / progress.js.
 *
 * Точные фрагменты оригинала, извлечённые из журнала сессии, сохранены
 * дословно (помечены [VERIFIED-FRAGMENT]): базовый layout (.container/.hidden/
 * .topbar, бывшие строки 30–41) и блокчата (.chat-container..., бывшие строки
 * 739–768). Прочие правила восстановлены по DOM-контракту разметки и JS.
 *
 * Накопленные P1-улучшения/фиксы намеренно НЕ вносились (поддерживается
 * последнее работоспособное состояние, без новых функций).
 */

:root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --border: #dde3e9;
    --text: #1c2733;
    --muted: #6b7a8d;
    --primary: #0f6f8f;
    --primary-dark: #0c5a75;
    --danger: #b3261e;
    --danger-bg: #fdecea;
    --ok: #1f7a3d;
    --ok-bg: #e8f6ec;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(16, 35, 50, 0.12);
    --shadow-lg: 0 6px 24px rgba(16, 35, 50, 0.16);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
}

.container {
    margin: 0 auto;
    padding: 0 16px;
    max-width: 980px;
    width: 100%;
}

.hidden {
    display: none !important;
}

.topbar {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.profile-display {
    color: var(--muted);
    font-size: 14px;
}

main.container {
    padding-top: 24px;
    padding-bottom: 48px;
}

.screen {
    display: block;
}

.hero {
    text-align: center;
    padding: 28px 0 12px;
}

.hero h1 {
    margin: 0;
    font-size: 30px;
    color: var(--text);
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 16px;
}

.mode-card {
    cursor: pointer;
    transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.mode-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mode-card:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.mode-icon {
    font-size: 34px;
    line-height: 1;
    margin-bottom: 8px;
}

.mode-card h2 {
    margin: 0 0 6px;
    font-size: 18px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.muted {
    color: var(--muted);
}

p.muted {
    margin: 0 0 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 15px;
    line-height: 1.2;
    cursor: pointer;
    background: transparent;
    color: var(--text);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

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

.btn-ghost:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.btn-danger:hover:not(:disabled) {
    filter: brightness(0.92);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 16px;
}

/* Banners */
.banner {
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 15px;
}

.banner-error {
    background: var(--danger-bg);
    border: 1px solid #f3c1bc;
    color: var(--danger);
}

/* Chat */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 56px - 80px);
    min-height: 400px;
    max-height: 700px;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding: 8px 0 4px;
}

.chat-header h2 {
    font-size: 22px;
    margin: 0;
}

.chat-header-tools {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.mode-seg {
    display: inline-flex;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    overflow: hidden;
}

.mode-seg-btn {
    border: 0;
    background: transparent;
    padding: 8px 14px;
    font-size: 14px;
    cursor: pointer;
    color: var(--muted);
}

.mode-seg-btn.active {
    background: var(--primary);
    color: #fff;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-msg {
    display: flex;
}

.chat-msg-assistant {
    justify-content: flex-start;
}

.chat-msg-user {
    justify-content: flex-end;
}

.chat-bubble {
    max-width: 78%;
    padding: 12px 16px;
    border-radius: 14px;
    background: var(--card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    white-space: pre-wrap;
    word-break: break-word;
}

.chat-msg-user .chat-bubble {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.chat-bubble-loading {
    color: var(--muted);
    font-style: italic;
}

.chat-loader {
    margin: 0;
}

.chat-error {
    margin: 8px 0;
}

.chat-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 10px 0 0;
}

.chat-quote {
    display: none;
    margin-top: 12px;
    padding: 10px 12px;
    border-left: 3px solid var(--primary);
    background: var(--bg);
    border-radius: 6px;
    font-size: 14px;
}

.chat-quote-open {
    display: block;
}

.chat-quote-toggle {
    margin-top: 8px;
}

.chat-suggestions {
    margin-top: 10px;
}

.chat-selfcheck {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 10px 0 0;
}

.chat-suggestions-label {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 6px;
}

.chat-suggestions-list {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.chat-suggestion-chip {
    border: 1px solid var(--primary);
    border-radius: 999px;
    background: transparent;
    color: var(--primary);
    padding: 5px 14px;
    font-size: 13px;
    line-height: 1.3;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
}

.chat-suggestion-chip:hover {
    background: var(--primary);
    color: #fff;
}

.chat-suggestion-chip:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-source-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

.chat-source-item {
    border: 1px solid var(--border);
    background: var(--card);
    border-radius: 8px;
    padding: 10px 12px;
}

.chat-source-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin-bottom: 4px;
}

.chat-source-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 2px;
}

.chat-source-meta {
    font-size: 13px;
    color: var(--muted);
}

.chat-source-link {
    font-size: 13px;
    color: var(--primary);
    text-decoration: none;
    word-break: break-all;
}

.chat-source-link:hover {
    text-decoration: underline;
}

.chat-input-row {
    display: flex;
    gap: 10px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.chat-input {
    flex: 1;
    resize: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font: inherit;
    line-height: 1.4;
    color: var(--text);
    background: var(--card);
}

.chat-input:focus {
    outline: 2px solid var(--primary);
    outline-offset: -1px;
}

.chat-send-btn {
    flex: 0 0 auto;
}

/* Case screen */
.step-card {
    margin-top: 8px;
}

.step-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.badge {
    background: var(--primary);
    color: #fff;
    border-radius: 999px;
    padding: 2px 12px;
    font-size: 14px;
    font-weight: 600;
}

.step-type {
    font-size: 15px;
}

.stats-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 12px;
}

.stats-sep {
    color: var(--border);
}

.stat-big {
    font-size: 28px;
    font-weight: 700;
}

.stat-highlight {
    color: var(--primary);
    font-weight: 700;
}

.stat-label {
    font-size: 14px;
    color: var(--muted);
}

.step-text {
    font-size: 16px;
    white-space: pre-wrap;
    word-break: break-word;
    margin-bottom: 16px;
}

.question-block {
    margin-bottom: 16px;
}

.question-text {
    font-size: 16px;
    margin: 0 0 10px;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.option {
    display: block;
    text-align: left;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    padding: 12px 14px;
    font-size: 15px;
    cursor: pointer;
    color: var(--text);
}

.option:hover {
    border-color: var(--primary);
}

.option:disabled {
    cursor: default;
    opacity: 0.7;
}

.feedback {
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 16px;
    background: var(--ok-bg);
    border: 1px solid #bfe3c8;
}

.feedback-header {
    font-weight: 600;
    color: var(--ok);
    margin-bottom: 6px;
}

.feedback-body {
    font-size: 15px;
}

.hint.muted {
    font-size: 14px;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Progress (профиль) */
.profile-input {
    width: 100%;
    max-width: 420px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    background: var(--card);
}

.profile-hint,
.profile-warning {
    font-size: 14px;
}

.compact-nick-block {
    border-top: 1px solid var(--border);
    margin-top: 16px;
    padding-top: 16px;
}

.compact-nick-text {
    margin: 0 0 10px;
}

.compact-nick-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 460px;
}

.compact-nick-form-actions {
    display: flex;
    gap: 8px;
}

.compact-nick-success {
    color: var(--ok);
    font-size: 15px;
}

/* Progress & cases lists */
.progress-header h1,
.cases-header h1 {
    margin: 0 0 16px;
    font-size: 24px;
}

.progress-loading {
    font-size: 15px;
}

.progress-empty {
    font-size: 15px;
}

.cases-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cases-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.cases-card {
    cursor: pointer;
    padding: 14px 16px;
    transition: box-shadow 0.08s ease;
}

.cases-card:hover {
    box-shadow: var(--shadow-lg);
}

.cases-case-card,
.cases-diff-card,
.cases-topic-card {
    cursor: pointer;
}

.cases-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.cases-card-title {
    font-size: 16px;
    font-weight: 600;
}

.cases-card-count {
    font-size: 14px;
}

.cases-card-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.cases-card-arrow {
    color: var(--muted);
    font-size: 20px;
}

/* Finish */
.finish-card {
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
}

.finish-icon {
    font-size: 44px;
    margin-bottom: 6px;
}

.finish-card h1 {
    margin: 0 0 16px;
    font-size: 26px;
}

.finish-clinical {
    margin: 12px 0 16px;
}

.finish-stats {
    margin-bottom: 20px;
    color: var(--muted);
}

.finish-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

/* Modals */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(16, 35, 50, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}

.modal-dialog {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 22px;
    max-width: 440px;
    width: 100%;
}

.modal-title {
    margin: 0 0 8px;
    font-size: 20px;
}

.modal-text {
    margin: 0 0 14px;
    font-size: 15px;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 14px;
}

.modal-actions-column {
    flex-direction: column;
    justify-content: stretch;
}

@media (max-width: 640px) {
    .mode-grid {
        grid-template-columns: 1fr;
    }

    .chat-bubble {
        max-width: 92%;
    }

    .chat-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .chat-input-row {
        flex-direction: column;
    }

    .modal-actions {
        flex-direction: column;
        align-items: stretch;
    }
}