/* --- Стили для Калькулятора Биологического Возраста (Health Theme) --- */
:root {
    --accent-bio: #059669; /* Изумрудный (Emerald Green) */
    --accent-bio-light: #ECFDF5;
    --gradient-bio-card: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
    --bg-dark-card: #FFFFFF;
    --text-bio-dark: #064E3B;
}

/* --- Заголовок --- */
.calc-header { margin-bottom: 32px; }
.subtitle { color: var(--text-secondary); margin-top: 8px; }

/* --- Сетка Калькулятора --- */
.calc-grid { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 900px) { .calc-grid { grid-template-columns: 1.2fr 0.8fr; } }

/* --- Инпуты и Селекты --- */
.calc-inputs { gap: 16px; }
.input-group { margin-bottom: 16px; }
.input-group label { 
    display: block; 
    font-size: 14px; 
    font-weight: 600; 
    margin-bottom: 8px; 
    color: var(--text-primary); 
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; }

.input-wrapper { position: relative; display: flex; align-items: center; }

.input-wrapper input, .input-wrapper select {
    width: 100%; 
    padding: 14px 16px; 
    font-size: 16px; 
    font-weight: 500;
    border: 1px solid #E5E7EB; 
    border-radius: 12px;
    outline: none; 
    transition: border 0.2s;
    font-family: var(--font-main); 
    background: #fff;
    appearance: none; 
    cursor: pointer;
}
.input-wrapper input { cursor: text; padding-right: 40px; }
.input-wrapper input:focus, .input-wrapper select:focus { 
    border-color: var(--accent-bio); 
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15); 
}

.suffix { 
    position: absolute; 
    right: 16px; 
    top: 50%; 
    transform: translateY(-50%);
    pointer-events: none; 
    font-size: 14px; 
    color: var(--text-secondary);
}
.helper-text { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

.row-2-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* --- Карточка Результата --- */
.card--bio { 
    background: var(--gradient-bio-card); 
    color: var(--text-bio-dark); 
    border: 1px solid #A7F3D0; 
}
.card--bio h2 { 
    color: var(--text-bio-dark); 
    margin-bottom: 20px; 
    font-size: 16px; 
    text-align: center;
}
@media (min-width: 900px) { .sticky-card { position: sticky; top: 24px; } }

/* --- KILLER FEATURE: CSS SPEEDOMETER (Спидометр износа) --- */
.bio-profit-box { text-align: center; margin-bottom: 24px; }

.bio-gauge-container {
    position: relative; 
    width: 180px; 
    height: 180px; 
    margin: 0 auto 16px;
    display: flex; 
    align-items: center; 
    justify-content: center;
}

.bio-gauge {
    width: 100%; 
    height: 100%; 
    border-radius: 50%;
    background: #D1D5DB; 
    display: flex; 
    align-items: center; 
    justify-content: center;
    position: relative; 
    z-index: 2; 
    transition: background 0.4s ease-out;
}

.gauge-inner {
    width: 140px; 
    height: 140px; 
    background: #fff; 
    border-radius: 50%;
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.gauge-value { 
    font-size: 48px; 
    font-weight: 800; 
    color: var(--text-primary); 
    line-height: 1; 
    transition: color 0.3s; 
}

.gauge-label { 
    font-size: 12px; 
    color: var(--text-secondary); 
    font-weight: 700; 
    margin-top: 4px; 
    text-transform: uppercase; 
}

/* Пульсация спидометра (Анимация статуса) */
.pulse-ring {
    position: absolute; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    border-radius: 50%; 
    z-index: 1; 
    opacity: 0; 
    transition: all 0.5s;
}
.theme-excellent .pulse-ring { 
    background: #10B981; 
    animation: pulseHeart 2s infinite; 
    opacity: 0.3; 
}
.theme-bad .pulse-ring { 
    background: #EF4444; 
    opacity: 0.2; 
    box-shadow: 0 0 30px #EF4444; 
}

@keyframes pulseHeart {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.15); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

.bio-status-text { 
    font-size: 14px; 
    font-weight: 600; 
    color: var(--text-bio-dark); 
}

/* --- Детали и Бейджи --- */
.summary-divider { height: 1px; background: rgba(0,0,0,0.1); margin: 24px 0; }

.details-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }

.detail-row {
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,0.05); 
    padding-bottom: 10px; 
    font-size: 14px;
}
.detail-row strong { font-size: 16px; font-weight: 700; }
.detail-row strong.green { color: #059669; }
.detail-row strong.red { color: #DC2626; }


/* =========================================
   ИНФОРМАЦИОННЫЕ И SEO БЛОКИ (Health Theme)
   ========================================= */

.info-wrapper {
    padding: 60px 0 60px 0;
    margin-top: 60px;
    border-top: 1px solid rgba(0,0,0,0.06);
    margin-bottom: 20px;
}

.info-wrapper .container { max-width: 800px; margin: 0 auto; }

/* Заголовки с иконками */
.icon-heading {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.3;
}

.header-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    flex-shrink: 0;
    margin-top: -4px;
}

.header-icon svg { width: 24px; height: 24px; stroke-width: 2px; }

/* Цвета иконок */
.blue-icon svg { color: #2563EB; }
.green-icon svg { color: var(--accent-bio); }
.yellow-icon svg { color: #F59E0B; }
.red-icon svg { color: #EF4444; }

/* Маленькие подзаголовки */
.small-heading { margin-top: 40px; margin-bottom: 16px; font-size: 20px; }
.small-heading .header-icon { width: 40px; height: 40px; }
.small-heading .header-icon svg { width: 20px; height: 20px; }

.intro-text {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

/* --- Секция Формул --- */
.formulas-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.formula-card {
    background: #fff;
    border: 1px solid rgba(0,0,0,0.04);
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    border-radius: 24px; 
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
}
.formula-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.08); }

.formula-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.formula-card h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

/* Бейджи формул */
.badge-blue {
    background: #2563EB; color: #fff;
    padding: 6px 12px; border-radius: 99px;
    font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.05em;
    display: inline-block;
}
.badge-green {
    background: var(--accent-bio); color: #fff;
    padding: 6px 12px; border-radius: 99px;
    font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.05em;
    display: inline-block;
}

.formula-card p {
    font-size: 14px; color: var(--text-secondary);
    margin: 0; line-height: 1.5; font-weight: 500;
}

.math-expression {
    background: var(--accent-bio-light); 
    border: 1px solid #A7F3D0;
    padding: 12px 16px;
    border-radius: 12px;
    font-weight: 700;
    color: var(--accent-bio);
    text-align: center;
    margin-bottom: 16px;
    font-size: 15px;
}

/* Разделитель */
.soft-divider {
    border: none; height: 1px;
    background: linear-gradient(90deg, transparent, #E5E7EB, transparent);
    margin: 48px 0;
}

/* Описание */
.calc-description p {
    font-size: 16px; line-height: 1.7;
    color: var(--text-secondary); margin-bottom: 24px;
}
.calc-description strong { color: var(--text-primary); }

/* --- FAQ Секция (SGE AI Ready) --- */
.faq-section .faq-item {
    background: #fff; border: 1px solid #E5E7EB;
    border-radius: 12px; margin-bottom: 12px;
    overflow: hidden; transition: all 0.2s ease;
}

.faq-section .faq-item[open] {
    border-color: var(--accent-bio); 
    box-shadow: 0 4px 20px rgba(5, 150, 105, 0.15);
}

summary.faq-question {
    padding: 16px 20px; cursor: pointer;
    font-weight: 600; color: var(--text-primary);
    list-style: none; position: relative;
    display: flex; justify-content: space-between;
    align-items: center; transition: background 0.2s;
}

summary.faq-question:hover { background-color: #F9FAFB; }

.faq-section .faq-item[open] summary.faq-question {
    color: var(--accent-bio);
    background: var(--accent-bio-light);
}

.faq-question::after {
    content: '+'; font-size: 20px;
    color: var(--text-secondary); font-weight: 400; line-height: 1;
}
.faq-question .icon-plus { display: none; }

.faq-section .faq-item[open] summary.faq-question::after {
    content: '−'; color: var(--accent-bio);
}

.faq-answer, .faq-item div[itemprop="text"] {
    padding: 20px; color: var(--text-secondary);
    line-height: 1.6; font-size: 15px;
}

/* --- МОБИЛЬНАЯ АДАПТАЦИЯ --- */
@media (max-width: 900px) {
    .formulas-grid { grid-template-columns: 1fr; gap: 16px; margin-bottom: 32px; }
    .icon-heading { font-size: 20px; gap: 12px; margin-bottom: 20px; }
    .header-icon { width: 40px; height: 40px; border-radius: 12px; }
    .header-icon svg { width: 20px; height: 20px; }
    
    .formula-card { padding: 24px; text-align: center; align-items: center; }
    .formula-header { align-items: center; width: 100%; }
    .math-expression { width: 100%; max-width: 300px; margin-left: auto; margin-right: auto; }
    
    .info-wrapper { margin-top: 40px; padding-top: 40px; }
}