/* ===================== RESET & BASE ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-card-hover: #22263a;
    --bg-input: #13151d;
    --border: #2a2e3e;
    --text: #e2e4ea;
    --text-dim: #8b8fa3;
    --text-muted: #5a5e72;
    --accent: #6c8cff;
    --accent-dim: #4a6ae0;
    --accent-glow: rgba(108, 140, 255, 0.15);
    --success: #4ade80;
    --success-dim: rgba(74, 222, 128, 0.15);
    --error: #f87171;
    --error-dim: rgba(248, 113, 113, 0.15);
    --warning: #fbbf24;
    --anime: #c084fc;
    --anime-dim: rgba(192, 132, 252, 0.15);
    --radius: 8px;
    --radius-lg: 12px;
    --sidebar-width: 200px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

html { font-size: 15px; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    display: flex;
    min-height: 100vh;
    line-height: 1.5;
}

/* ===================== SIDEBAR ===================== */
#sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 10;
    display: flex;
    flex-direction: column;
}

.logo {
    padding: 0 20px 20px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.5px;
}

.nav-items {
    list-style: none;
    flex: 1;
}

.nav-items li {
    padding: 10px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dim);
    transition: all 0.15s;
    border-left: 3px solid transparent;
    font-size: 0.93rem;
}

.nav-items li:hover {
    background: var(--accent-glow);
    color: var(--text);
}

.nav-items li.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--accent-glow);
}

.nav-icon { font-size: 1.1rem; }

/* ===================== MAIN CONTENT ===================== */
#content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 24px 32px;
    max-width: 1100px;
}

.screen { display: none; }
.screen.active { display: block; }

.screen-header { margin-bottom: 24px; }
.screen-header h1 { font-size: 1.6rem; font-weight: 700; }
.subtitle { color: var(--text-dim); margin-top: 4px; font-size: 0.9rem; }

/* ===================== BUTTONS ===================== */
.btn {
    padding: 8px 18px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s;
    font-weight: 500;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-dim); }

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-dim);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-card-hover); color: var(--text); }

.btn-accent {
    background: var(--warning);
    color: #000;
}

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

.btn-large { padding: 12px 28px; font-size: 1rem; }

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ===================== DRILL TYPES ===================== */
.drill-types {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.drill-type-btn {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-dim);
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.85rem;
    transition: all 0.15s;
}

.drill-type-btn:hover { background: var(--bg-card-hover); color: var(--text); }
.drill-type-btn.active {
    background: var(--accent-glow);
    border-color: var(--accent);
    color: var(--accent);
}

.drill-content { display: none; }
.drill-content.active { display: block; }

/* ===================== DRILL CARD ===================== */
.drill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
}

.drill-prompt { margin-bottom: 20px; }

.drill-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.anime-label { color: var(--anime); }

blockquote {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--text);
    padding-left: 16px;
    border-left: 3px solid var(--accent);
    line-height: 1.6;
}

.drill-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
}

.anime-text {
    border-left: 3px solid var(--anime);
    padding-left: 16px;
}

.anime-meta {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===================== TAG GRID ===================== */
.tag-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.tag-grid.compact { gap: 6px; }
.tag-grid.compact .tag-btn { padding: 4px 10px; font-size: 0.8rem; }

.tag-btn {
    padding: 6px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-dim);
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.85rem;
    transition: all 0.15s;
    user-select: none;
}

.tag-btn:hover { background: var(--bg-card-hover); color: var(--text); }

.tag-btn.selected {
    background: var(--accent-glow);
    border-color: var(--accent);
    color: var(--accent);
}

.tag-btn.selected-base {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.tag-btn.correct {
    background: var(--success-dim);
    border-color: var(--success);
    color: var(--success);
}

.tag-btn.wrong {
    background: var(--error-dim);
    border-color: var(--error);
    color: var(--error);
}

.tag-btn.missed {
    background: transparent;
    border-color: var(--success);
    color: var(--success);
    border-style: dashed;
}

/* ===================== DRILL ACTIONS / FEEDBACK ===================== */
.drill-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.feedback {
    margin-top: 16px;
    padding: 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    line-height: 1.5;
}

.feedback.correct {
    background: var(--success-dim);
    border: 1px solid var(--success);
    color: var(--success);
}

.feedback.partial {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.feedback.wrong {
    background: var(--error-dim);
    border: 1px solid var(--error);
    color: var(--error);
}

.drill-stats-bar {
    display: flex;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg-card);
    border-radius: var(--radius);
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* ===================== OPTIONS GRID ===================== */
.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

.option-btn {
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.9rem;
    text-align: left;
    transition: all 0.15s;
}

.option-btn:hover { background: var(--bg-card-hover); border-color: var(--text-muted); }
.option-btn.correct { background: var(--success-dim); border-color: var(--success); color: var(--success); }
.option-btn.wrong { background: var(--error-dim); border-color: var(--error); color: var(--error); }
.option-btn.disabled { pointer-events: none; opacity: 0.7; }

/* ===================== SPEED ANALYSIS ===================== */
.speed-config, .sim-config {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 600px;
}

.speed-config h3, .sim-config h3 { margin-bottom: 12px; color: var(--text); font-size: 1rem; }

.case-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.case-item {
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s;
}

.case-item:hover { background: var(--bg-card-hover); }
.case-item.selected { border-color: var(--accent); background: var(--accent-glow); }
.case-item .case-title { font-weight: 500; }
.case-item .case-meta { font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }

.timer-options {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.timer-btn {
    padding: 8px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-dim);
    cursor: pointer;
    font-family: var(--font);
}

.timer-btn.active { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }

.speed-timer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    position: sticky;
    top: 0;
    z-index: 5;
}

.timer {
    font-size: 1.8rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text);
}

.timer.warning { color: var(--warning); }
.timer.danger { color: var(--error); animation: pulse 1s infinite; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.speed-case-display {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.case-text-block {
    font-size: 0.93rem;
    line-height: 1.6;
    color: var(--text);
    white-space: pre-wrap;
}

.speed-form { display: flex; flex-direction: column; gap: 16px; }

.form-section label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

textarea, input[type="text"], select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
}

textarea:focus, input:focus, select:focus {
    outline: none;
    border-color: var(--accent);
}

select { cursor: pointer; }

.matrix-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.matrix-section h4 {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.base-sphere-label {
    margin-top: 8px;
    font-size: 0.85rem !important;
    display: flex !important;
    align-items: center;
    gap: 8px;
}

.base-sphere-label select { width: auto; }

/* Comparison */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.comparison-col {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.comparison-col h3 { margin-bottom: 12px; }
.comparison-col.etalon { border-color: var(--success); }
.comparison-col.etalon h3 { color: var(--success); }

/* ===================== SIMULATOR ===================== */
.config-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.config-row label { min-width: 130px; font-size: 0.9rem; }
.config-row select { flex: 1; }

.sim-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 20px;
    height: calc(100vh - 160px);
}

.sim-chat {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message {
    padding: 10px 14px;
    border-radius: var(--radius);
    max-width: 80%;
    font-size: 0.93rem;
    line-height: 1.5;
}

.message.therapist {
    background: var(--accent-glow);
    border: 1px solid rgba(108, 140, 255, 0.3);
    align-self: flex-end;
}

.message.client {
    background: var(--bg-input);
    border: 1px solid var(--border);
    align-self: flex-start;
}

.message.system {
    background: transparent;
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.85rem;
    align-self: center;
    text-align: center;
}

.sim-input {
    padding: 12px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
}

.sim-input textarea { flex: 1; resize: none; }

.sim-notepad {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sim-notepad h3 { font-size: 0.9rem; color: var(--text-dim); }
.sim-notepad textarea { flex: 1; resize: none; min-height: 200px; }

.msg-role { display: block; font-size: 0.75rem; font-weight: 600; margin-bottom: 4px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
.message.therapist .msg-role { color: var(--accent); }
.message.client .msg-role { color: var(--text-muted); }

.message.typing .msg-text { animation: typingPulse 1s ease-in-out infinite; }
@keyframes typingPulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } }

.loading-eval { text-align: center; padding: 40px; color: var(--text-dim); font-size: 1.1rem; animation: typingPulse 1.5s ease-in-out infinite; }
.eval-error { color: var(--error); padding: 20px; background: var(--error-dim); border-radius: var(--radius); }
.eval-result { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; line-height: 1.7; }
.eval-result h2 { font-size: 1.2rem; color: var(--accent); margin: 20px 0 8px; }
.eval-result h2:first-child { margin-top: 0; }
.eval-result h3 { font-size: 1rem; color: var(--text); margin: 16px 0 6px; }
.eval-result ul { margin: 4px 0; padding-left: 20px; }
.eval-result li { margin: 4px 0; }
.eval-result strong { color: var(--accent); }

.sim-config { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; max-width: 500px; }
.sim-config h3 { margin-bottom: 16px; }
.config-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.config-row label { min-width: 130px; color: var(--text-dim); font-size: 0.9rem; }
.config-row select { flex: 1; }
.sim-config .btn-large { width: 100%; margin-top: 12px; }

/* ===================== PATTERNS ===================== */
.patterns-toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.search-input {
    flex: 1;
    max-width: 400px;
}

.patterns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.pattern-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: all 0.15s;
}

.pattern-card:hover { border-color: var(--text-muted); background: var(--bg-card-hover); }
.pattern-card h3 { font-size: 1rem; margin-bottom: 8px; }
.pattern-card p { font-size: 0.85rem; color: var(--text-dim); line-height: 1.4; }
.pattern-card .pattern-tags { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 4px; }

.pattern-tag {
    padding: 2px 8px;
    background: var(--bg-input);
    border-radius: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.pattern-tag.function { color: var(--accent); }
.pattern-tag.sphere { color: var(--success); }

/* ===================== MODAL ===================== */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-content h2 { margin-bottom: 20px; }
.modal-content .form-section { margin-bottom: 14px; }
.modal-actions { display: flex; gap: 12px; margin-top: 20px; }
.modal-actions .btn-danger { margin-left: auto; }

/* ===================== PROGRESS ===================== */
.progress-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-content { font-size: 0.9rem; }

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}

.stat-row:last-child { border-bottom: none; }

.activity-section h3 { margin-bottom: 12px; }

.activity-calendar {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
}

.activity-day {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    background: var(--bg-card);
}

.activity-day.level-1 { background: rgba(108, 140, 255, 0.2); }
.activity-day.level-2 { background: rgba(108, 140, 255, 0.4); }
.activity-day.level-3 { background: rgba(108, 140, 255, 0.6); }
.activity-day.level-4 { background: var(--accent); }

/* ===================== LOADING ===================== */
.loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    padding: 20px;
}

.loading::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ===================== SCROLLBAR ===================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
    #sidebar { width: 60px; }
    .nav-label { display: none; }
    .logo { font-size: 1rem; padding: 0 10px 20px; text-align: center; }
    .nav-items li { padding: 12px 0; justify-content: center; }
    #content { margin-left: 60px; padding: 16px; }
    .sim-layout { grid-template-columns: 1fr; height: auto; }
    .comparison-grid { grid-template-columns: 1fr; }
    .matrix-grid { grid-template-columns: 1fr; }
    .options-grid { grid-template-columns: 1fr; }
}

/* ===================== ANALYSIS SECTIONS ===================== */
.analysis-section {
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.analysis-section:last-child { border-bottom: none; }

.analysis-section h4 {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.analysis-section p {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text);
}

.analysis-section em { color: var(--text-muted); }

/* ===================== EMPTY STATE ===================== */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 0.95rem; }