/* Базові змінні (Світла тема) */
:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --option-bg: #f1f5f9;
    --option-hover: #e2e8f0;
}

/* Змінні для Темної теми (Стиль Krexpor) */
[data-theme="dark"] {
    --bg-color: #111318;
    --card-bg: #1a1d24;
    --text-main: #f8fafc;
    --text-muted: #8b949e;
    --border-color: #30363d;
    --option-bg: #111318;
    --option-hover: #30363d;
}

/* === ГЛОБАЛЬНІ СТИЛІ ДЛЯ ТЕСТІВ === */
body { 
    background-color: var(--bg-color); 
    color: var(--text-main); 
    font-family: 'Inter', -apple-system, sans-serif; 
    display: flex; 
    flex-direction: column; /* ВАЖЛИВО: щоб тест йшов зверху вниз, а не по центру */
    align-items: center; 
    padding: 40px 20px; 
    margin: 0; 
    line-height: 1.6; 
    transition: background-color 0.3s, color 0.3s;
}

.top-controls { position: absolute; top: 20px; right: 20px; display: flex; gap: 8px; z-index: 10; }
.control-btn { background: transparent; border: 1px solid var(--border-color); color: var(--text-muted); border-radius: 6px; padding: 4px 8px; font-size: 0.75rem; cursor: pointer; transition: all 0.3s; font-weight: 600; display: flex; align-items: center; justify-content: center; }
.control-btn:hover { background: var(--option-hover); color: var(--text-main); }

/* Контейнер та Тексти */
.container { background: var(--card-bg); border-radius: 20px; padding: 40px; width: 100%; max-width: 650px; box-shadow: 0 10px 40px rgba(0,0,0,0.05); border: 1px solid var(--border-color); margin-bottom: 40px; position: relative; transition: background-color 0.3s, border-color 0.3s; }
.title-wrapper { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 10px; }
h1 { color: var(--text-main); margin: 0; font-size: 26px; font-weight: 700; text-align: center; }
.subtitle { color: var(--text-muted); font-size: 15px; margin-bottom: 30px; text-align: center; }
.question-block { margin-bottom: 35px; }
.question-title { display: block; margin-bottom: 15px; color: var(--text-main); font-weight: 600; font-size: 16px; }

/* Картки відповідей */
.options-grid { display: grid; gap: 12px; }
.option-label { display: block; position: relative; cursor: pointer; }
.option-label input { position: absolute; opacity: 0; cursor: pointer; }
.option-card { display: flex; align-items: center; padding: 16px 20px; background: var(--option-bg); border: 2px solid transparent; border-radius: 12px; color: var(--text-main); font-size: 15px; transition: all 0.2s ease; }
.option-label:hover .option-card { background: var(--option-hover); }
.option-label input:checked ~ .option-card { background: var(--card-bg); border-color: var(--accent-color); box-shadow: 0 4px 12px rgba(0,0,0,0.1); color: var(--accent-color); font-weight: 500; }

textarea { width: 100%; padding: 15px; background: var(--option-bg); border: 2px solid transparent; color: var(--text-main); border-radius: 12px; box-sizing: border-box; font-family: inherit; font-size: 15px; resize: vertical; min-height: 90px; transition: 0.3s; }
textarea:focus { outline: none; background: var(--card-bg); border-color: var(--accent-color); }

.btn { width: 100%; padding: 16px; background: var(--accent-color); color: white; border: none; border-radius: 12px; cursor: pointer; font-weight: 600; font-size: 16px; transition: 0.2s; margin-top: 15px; box-shadow: 0 4px 14px rgba(0,0,0,0.1); }
.btn:hover { background: var(--accent-hover); transform: translateY(-2px); }
.result-box { margin-top: 30px; background: var(--option-bg); border: 1px solid var(--border-color); padding: 30px; border-radius: 16px; display: none; }
.result-box h2 { color: var(--accent-color); font-size: 20px; margin-top: 20px; margin-bottom: 10px; }
.result-box h2:first-child { margin-top: 0; }
.loader { color: var(--accent-color); text-align: center; font-weight: 500; display: none; margin-top: 20px; animation: pulse 1.5s infinite; }
@keyframes pulse { 0% { opacity: 0.6; } 50% { opacity: 1; } 100% { opacity: 0.6; } }

/* FAQ */
.faq-section { margin-top: 35px; border-top: 1px solid var(--border-color); padding-top: 20px; }
.faq-section h3 { color: var(--text-main); font-size: 1.2rem; margin-bottom: 20px; }
details.faq-item { background: var(--hover-bg); border: 1px solid var(--border-color); border-radius: 10px; margin-bottom: 12px; padding: 14px 18px; transition: background 0.3s; }
details.faq-item[open] { background: var(--bg-color); border-color: var(--accent-color, var(--text-muted)); }
details.faq-item summary { font-weight: 600; cursor: pointer; color: var(--text-main); outline: none; list-style: none; display: flex; justify-content: space-between; align-items: center; font-size: 0.95rem; }
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after { content: '+'; color: var(--accent-color, #64748b); font-size: 1.5rem; font-weight: 400; transition: transform 0.3s; }
details.faq-item[open] summary::after { transform: rotate(45deg); }
details.faq-item p { margin-top: 12px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; margin-bottom: 0; }

/* =========================================
   КНОПКА "НАВЕРХ" ДЛЯ ТЕСТОВ
   ========================================= */
#scrollToTopBtn {
    position: fixed !important; bottom: 30px !important; right: 30px !important; width: 45px !important; height: 45px !important;
    background-color: var(--card-bg) !important; color: var(--text-muted) !important; border: 1px solid var(--border-color) !important;
    border-radius: 50px !important; display: flex !important; align-items: center !important; justify-content: center !important;
    cursor: pointer !important; opacity: 0; visibility: hidden; transform: translateY(20px); transition: all 0.3s ease !important;
    z-index: 999999 !important; outline: none !important; -webkit-appearance: none !important; appearance: none !important;
    -webkit-tap-highlight-color: transparent !important; box-shadow: 0 4px 10px rgba(0,0,0,0.1) !important; margin: 0 !important;
    padding: 0 !important; overflow: hidden !important;
}
#scrollToTopBtn.show { opacity: 1 !important; visibility: visible !important; transform: translateY(0) !important; }
#scrollToTopBtn:hover { background-color: var(--option-hover) !important; color: var(--accent-color) !important; border-color: var(--accent-color) !important; transform: translateY(-3px) !important; }
#scrollToTopBtn svg { width: 22px !important; height: 22px !important; margin: 0 !important; fill: none !important; }