/* ============================================
   Тестілеу беті — заманауи flat дизайн
   Тема-бейім (ашық/қараңғы), көк акцент
   Айнымалылар #test-page-ке шектелген (глобал ластанбайды)
   ============================================ */

/* Жеңіл reset (тек тест беті элементтеріне қажет) */
#test-page * { box-sizing: border-box; }

/* === Палитра (тек тест бетінде) === */
#test-page {
    --bg-color: var(--secondary-color, #ffffff);
    --card-bg: #ffffff;
    --text-color: #1a1a1a;
    --muted: rgba(26, 26, 26, 0.55);
    --border-color: #e6e6e6;
    --hover-bg: #f4f4f5;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --on-accent: #ffffff;
    --correct: #16a34a;
    --correct-bg: rgba(22, 163, 74, 0.10);
    --incorrect: #dc2626;
    --incorrect-bg: rgba(220, 38, 38, 0.09);
    --disabled-color: #cbd5e1;
    --radius-pill: 9999px;
    color: var(--text-color);
}

[data-theme="dark"] #test-page {
    --card-bg: #232323;
    --text-color: #f0f0f0;
    --muted: rgba(255, 255, 255, 0.55);
    --border-color: #3a3a3a;
    --hover-bg: #2c2c2c;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --on-accent: #ffffff;
    --correct: #22c55e;
    --correct-bg: rgba(34, 197, 94, 0.14);
    --incorrect: #ef4444;
    --incorrect-bg: rgba(239, 68, 68, 0.13);
    --disabled-color: #4b5563;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* === Контейнер === */
.test-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: calc(100vh - 120px);
    color: var(--text-color);
}

/* ============================================
   START SCREEN
   ============================================ */
.test-start-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px 20px 60px;
    min-height: 70vh;
}

.test-info-form {
    padding: 32px;
    margin-bottom: 16px;
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
}

.form-group { margin-bottom: 20px; }

.test-info-form .form-label {
    display: block;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 8px;
    padding-left: 6px;
}

.test-info-form .form-group:last-of-type { margin-bottom: 10px; }
.test-info-form .start-test-btn { margin-top: 10px; }

.form-input {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    font-size: 16px;
    color: var(--text-color);
    background: var(--bg-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-family: inherit;
    border-radius: var(--radius-pill);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-input::placeholder { color: var(--muted); }

/* Custom select */
.custom-subject-select { position: relative; width: 100%; }

.custom-select-trigger {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    background: var(--bg-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-size: 16px;
    color: var(--text-color);
    font-family: inherit;
    min-height: 54px;
}

.custom-select-trigger:hover { border-color: var(--accent-color); }

.custom-select-trigger.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.custom-select-text { flex: 1; text-align: left; color: var(--text-color); }
.custom-select-text.placeholder { color: var(--muted); }

.custom-select-arrow {
    transition: transform 0.2s ease;
    color: var(--muted);
    margin-left: 8px;
    flex-shrink: 0;
}

.custom-select-trigger.active .custom-select-arrow { transform: rotate(180deg); }

.custom-select-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
    z-index: 1000;
    max-height: 260px;
    overflow: hidden auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

.custom-select-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.custom-select-option {
    padding: 15px 18px;
    cursor: pointer;
    font-size: 15px;
    color: var(--text-color);
    transition: background-color 0.15s ease;
    border-bottom: 1px solid var(--border-color);
    min-height: 48px;
    display: flex;
    align-items: center;
}

.custom-select-option:last-child { border-bottom: none; }
.custom-select-option:hover { background: var(--hover-bg); }

.custom-select-option.selected {
    background: var(--accent-color);
    color: var(--on-accent);
    font-weight: 600;
}

.start-test-btn {
    width: 100%;
    padding: 16px;
    background: var(--accent-color);
    border: none;
    border-radius: var(--radius-pill);
    color: var(--on-accent);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.15s ease;
    margin-top: 12px;
    font-family: inherit;
}

.start-test-btn:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-1px); }
.start-test-btn:disabled { background: var(--disabled-color); color: var(--card-bg); cursor: not-allowed; }

/* Test info (старт экранындағы жазу) */
.test-info {
    padding: 8px 16px 0;
    max-width: 600px;
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    margin: -10px auto 24px;
    order: -1;
}

.test-info-item {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}

.test-info-item span {
    color: var(--text-color);
    font-size: 24px;
    line-height: 1.4;
    font-weight: 700;
    font-family: inherit;
    letter-spacing: -0.02em;
    position: relative;
    overflow: hidden;
}

.test-info-item span::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.5) 50%, transparent 100%);
    z-index: 1;
    opacity: 0;
}

[data-theme="dark"] .test-info-item span::before {
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.12) 50%, transparent 100%);
}

.test-info-item span.shimmer-active::before { animation: shimmer 3s ease-in-out; }

@keyframes shimmer {
    0%   { left: -100%; opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { left: 100%; opacity: 0; }
}

/* ============================================
   QUESTION SCREEN
   ============================================ */
.test-header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 12px;
}

.test-action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.1s ease;
    font-family: inherit;
}

.test-action-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.test-action-btn:active { transform: scale(0.97); }

.exit-btn { color: var(--text-color); }
.exit-btn:hover { background: var(--hover-bg); border-color: var(--text-color); }
.exit-btn svg { stroke: currentColor; }

.finish-btn {
    background: var(--accent-color);
    color: var(--on-accent);
    border-color: var(--accent-color);
}
.finish-btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.finish-btn svg { stroke: currentColor; }

.test-question-screen { display: none; max-width: 800px; margin: 0 auto; padding: 20px; }
.test-question-screen.active { display: block; }

.test-progress-bar { display: none; }

.question-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 32px;
    margin-bottom: 28px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
}

.question-number {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 14px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.question-text {
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 28px;
    font-weight: 500;
}

.options-list { list-style: none; }
.option-item { margin-bottom: 12px; }

.option-button {
    width: 100%;
    display: flex;
    align-items: center;
    padding: 15px 18px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
    font-size: 15px;
    color: var(--text-color);
    text-align: left;
    font-family: inherit;
}

.option-button:hover { background: var(--hover-bg); border-color: var(--muted); }
.option-button:active { transform: scale(0.995); }

.option-button.selected {
    background: var(--accent-color);
    color: var(--on-accent);
    border-color: var(--accent-color);
}

.option-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border: 1.5px solid var(--border-color);
    border-radius: 50%;
    font-weight: 700;
    font-size: 12px;
    color: var(--muted);
    margin-right: 14px;
    flex-shrink: 0;
    transition: all 0.15s ease;
}

.option-button.selected .option-letter {
    background: var(--on-accent);
    color: var(--accent-color);
    border-color: var(--on-accent);
}

.question-navigation { display: flex; justify-content: space-between; gap: 16px; }

.nav-btn {
    padding: 12px 26px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.18s ease, transform 0.1s ease;
    font-family: inherit;
}

.nav-btn:hover:not(:disabled) { background: var(--hover-bg); }
.nav-btn:active:not(:disabled) { transform: scale(0.97); }
.nav-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.nav-btn.next-btn {
    background: var(--accent-color);
    color: var(--on-accent);
    border-color: var(--accent-color);
}
.nav-btn.next-btn:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }

/* ============================================
   RESULTS SCREEN
   ============================================ */
.test-results-screen { display: none; max-width: 800px; margin: 0 auto; padding: 20px; }
.test-results-screen.active { display: block; }

.results-header {
    text-align: center;
    margin-bottom: 28px;
    padding: 36px 28px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
}

.results-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 8px;
    letter-spacing: -0.03em;
}

.results-subtitle { font-size: 15px; color: var(--muted); }

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 36px;
}

.summary-card {
    padding: 24px 18px;
    text-align: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
}

.summary-value {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

/* Бірінші карта — жалпы балл — акцентпен */
.summary-card:first-child .summary-value { color: var(--accent-color); }

.summary-label {
    font-size: 11px;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.score-circle {
    width: 120px;
    height: 120px;
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 36px auto;
}

.score-text { font-size: 1.6rem; font-weight: 800; color: var(--accent-color); }

.detailed-results { margin-top: 36px; }

.detailed-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 22px;
    text-align: center;
}

.question-result {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 22px;
    margin-bottom: 12px;
}

.question-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.question-result-number { font-weight: 600; color: var(--muted); font-size: 14px; }

.question-result-status {
    padding: 4px 12px;
    font-size: 11px;
    font-weight: 700;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.question-result-status.correct {
    background: var(--correct-bg);
    color: var(--correct);
    border-color: var(--correct);
}

.question-result-status.incorrect {
    background: var(--incorrect-bg);
    color: var(--incorrect);
    border-color: var(--incorrect);
}

.question-result-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 16px;
    padding: 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
}

/* Жауап опциялары (толық нәтиже) */
.answer-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 15px;
    line-height: 1.5;
}

.answer-option .option-letter {
    margin-right: 0;
    border-color: currentColor;
    color: inherit;
    opacity: 0.85;
}

.answer-option .option-text { flex: 1; }

.answer-badge {
    margin-left: auto;
    font-weight: 700;
    font-size: 14px;
    white-space: nowrap;
    color: inherit;
}

.answer-option.option-correct,
.answer-option.option-correct-selected {
    background: var(--correct-bg);
    border-color: var(--correct);
    color: var(--correct);
    font-weight: 600;
}

.answer-option.option-incorrect-selected {
    background: var(--incorrect-bg);
    border-color: var(--incorrect);
    color: var(--incorrect);
    font-weight: 600;
}

.answer-option.option-neutral {
    background: var(--bg-color);
    border-color: var(--border-color);
    color: var(--text-color);
}

.answer-row { display: flex; align-items: center; gap: 8px; }
.answer-label {
    min-width: 90px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Түсіндірме — бейтарап карта, акцент тақырып */
.explanation {
    background: var(--hover-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px;
    margin-top: 16px;
}
.explanation-title { color: var(--accent-color); font-weight: 700; margin-bottom: 6px; font-size: 14px; }
.explanation-text { color: var(--text-color); opacity: 0.8; font-size: 14px; line-height: 1.6; }

/* Нәтиже әрекеттері */
.results-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 36px;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.18s ease, border-color 0.18s ease;
    font-family: inherit;
    text-decoration: none;
}

.action-btn:hover { background: var(--hover-bg); border-color: var(--accent-color); }
.action-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .test-container { padding: 24px 16px; }
    .test-info-form { padding: 24px; }
    .question-card { padding: 24px; }
    .question-text { font-size: 16px; }
    .test-info-item span { font-size: 20px; }

    .test-header-actions { gap: 10px; }
    .test-action-btn { flex: 1; justify-content: center; padding: 13px 14px; min-height: 46px; }

    .results-summary { grid-template-columns: repeat(2, 1fr); }
    .results-actions { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .question-card { padding: 20px 16px; margin-bottom: 20px; }
    .results-summary { grid-template-columns: 1fr; }
    .test-info-item span { font-size: 18px; }
}

@media (hover: none) and (pointer: coarse) {
    .option-button:active { transform: scale(0.98); }
    .test-action-btn:active { transform: scale(0.98); }
}