/* --- Стили для Калькулятора Воды (Aqua Theme) --- */
:root {
    --accent-aqua: #06B6D4; /* Cyan 500 */
    --accent-aqua-dark: #0891B2;
    --accent-aqua-light: #ECFEFF;
    --gradient-aqua-card: linear-gradient(180deg, #22D3EE 0%, #06B6D4 100%);
    
    /* ЦВЕТА ЖИДКОСТИ */
    --liquid-fill: rgba(255, 255, 255, 0.3); /* Полупрозрачное тело */
    --liquid-wave: rgba(255, 255, 255, 0.8); /* Яркий гребень */
}

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

.calc-grid { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 900px) { .calc-grid { grid-template-columns: 1.1fr 0.9fr; } }

/* Inputs */
.calc-inputs { gap: 24px; }
.input-group { margin-bottom: 24px; }
.input-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text-primary); }

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

.input-wrapper input {
    width: 100%; padding: 16px; padding-right: 40px;
    font-size: 18px; font-weight: 500;
    border: 1px solid #E5E7EB; border-radius: 12px;
    outline: none; transition: border 0.2s, box-shadow 0.2s;
    font-family: var(--font-main);
}
.input-wrapper input:focus { border-color: var(--accent-aqua); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15); }
.suffix { position: absolute; right: 16px; color: var(--text-secondary); pointer-events: none; }

/* Range Slider */
.range-wrapper { margin-top: 8px; }
.row-value-top { display: flex; justify-content: flex-end; margin-bottom: 4px; }
.range-val { font-weight: 700; color: var(--accent-aqua-dark); font-size: 16px; }

.range-slider {
    width: 100%; -webkit-appearance: none; height: 6px;
    background: #E5E7EB; border-radius: 5px; cursor: pointer;
}
.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
    background: var(--accent-aqua); cursor: pointer; border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2); transition: transform 0.1s;
}

/* Weather Selector */
.weather-selector { display: flex; gap: 12px; }
.weather-option { flex: 1; cursor: pointer; }
.weather-option input { display: none; }
.weather-card {
    border: 1px solid #E5E7EB; border-radius: 12px; padding: 12px;
    display: flex; flex-direction: column; align-items: center; text-align: center;
    transition: all 0.2s; background: #fff; height: 100%; color: var(--text-secondary);
}
.w-icon { font-size: 24px; margin-bottom: 4px; }
.weather-card span { font-size: 13px; font-weight: 600; }

.weather-option input:checked + .weather-card {
    border-color: var(--accent-aqua); background: var(--accent-aqua-light);
    color: var(--accent-aqua-dark); box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15);
}

/* --- Результаты (Aqua Card) --- */
.card--aqua { 
    background: var(--gradient-aqua-card); 
    color: #fff; 
    border: none; 
    position: relative; overflow: hidden;
}
.card--aqua h2 { color: rgba(255,255,255,0.95); margin-bottom: 24px; font-size: 16px; text-align: center; }

/* Визуализация бутылки */
.water-visual-container {
    display: flex; flex-direction: column; align-items: center; gap: 16px; margin-bottom: 24px;
}

.water-bottle {
    width: 120px; height: 180px;
    border: 4px solid rgba(255,255,255,0.4);
    border-radius: 20px 20px 40px 40px; 
    position: relative;
    overflow: hidden;
    background: rgba(255,255,255,0.1);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: flex; align-items: center; justify-content: center;
}
.water-bottle::after {
    content: ''; position: absolute; top: 10px; right: 10px; bottom: 10px; width: 10px;
    background: rgba(255,255,255,0.1); border-radius: 10px; pointer-events: none; z-index: 5;
}

.water-liquid {
    position: absolute; bottom: 0; left: 0; width: 100%; 
    height: 0%; 
    background: var(--liquid-fill);
    transition: height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

/* АНИМАЦИЯ ВОЛНЫ */
.wave {
    position: absolute; 
    top: -20px; 
    left: 0;
    width: 200%; 
    height: 30px; 
    background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1200 120" xmlns="http://www.w3.org/2000/svg"><path d="M0 60 Q 300 120 600 60 T 1200 60 V 120 H 0 Z" fill="rgba(255,255,255,0.8)"/></svg>') repeat-x;
    background-size: 50% 100%;
    animation: wave-slide 4s linear infinite;
    opacity: 1;
}

@keyframes wave-slide {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.bottle-text {
    position: relative; z-index: 10; text-align: center; color: #fff;
    display: flex; flex-direction: column; 
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.bottle-text span { font-size: 36px; font-weight: 800; line-height: 1; }
.bottle-text small { font-size: 13px; font-weight: 700; text-transform: uppercase; opacity: 0.9; }

.glasses-info { text-align: center; }
.gi-val { font-size: 28px; font-weight: 800; }
.gi-label { font-size: 15px; opacity: 0.9; margin-left: 6px; }

.summary-divider { height: 1px; background: rgba(255,255,255,0.2); margin: 24px 0; }

.schedule-box { background: rgba(255,255,255,0.15); padding: 16px; border-radius: 12px; backdrop-filter: blur(4px); }
.schedule-box h3 { margin: 0 0 12px 0; font-size: 14px; text-transform: uppercase; opacity: 0.9; }
.schedule-list { list-style: none; padding: 0; margin: 0; font-size: 13px; line-height: 1.6; }
.schedule-list li { margin-bottom: 6px; display: flex; justify-content: space-between; }
.schedule-list strong { font-weight: 700; }

/* --- НОВЫЕ ИНФОРМАЦИОННЫЕ БЛОКИ (Адаптация под Aqua/Water) --- */

.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: #06B6D4; } /* Aqua */
.orange-icon svg { color: #F59E0B; }
.green-icon svg { color: #10B981; }
.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); }

/* Вертикальный хедер (бейдж сверху) */
.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 */
.badge-blue {
    background: #06B6D4; color: #fff; /* Aqua */
    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: #10B981; 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: #ECFEFF; /* Aqua Light */
    border: 1px solid #CFFAFE;
    padding: 12px 16px;
    border-radius: 12px;
    font-weight: 700;
    color: var(--accent-aqua); /* Aqua Accent */
    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 (Новый стиль под Aqua) */
.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-aqua); 
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.15); /* Aqua Shadow */
}

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-aqua);
    background: var(--accent-aqua-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-aqua);
}

.faq-answer {
    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; }
}