/* --- Стили для Времени (Time/Violet Theme) --- */
:root {
    --accent-time: #7C3AED; /* Violet 600 */
    --accent-time-light: #F5F3FF; /* Violet 50 */
    --accent-time-dark: #5B21B6;
    --gradient-time-card: linear-gradient(135deg, #8B5CF6 0%, #6D28D9 100%);
}

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

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

/* Inputs (Уменьшили отступы) */
.calc-inputs { gap: 16px; }
.input-group { margin-bottom: 16px; }
.input-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }

/* Ряд ввода времени (ЧЧ : ММ) */
.time-input-row { display: flex; align-items: center; gap: 8px; }

/* Убираем стрелки */
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 { flex: 1; }
.input-wrapper input {
    width: 100%; padding: 12px; text-align: center;
    font-size: 22px; font-weight: 700; font-family: monospace;
    border: 1px solid #E5E7EB; border-radius: 12px;
    outline: none; transition: border 0.2s;
    font-family: var(--font-main);
}
.input-wrapper input:focus { border-color: var(--accent-time); box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15); }

.time-sep { font-size: 22px; font-weight: 700; color: #D1D5DB; padding-bottom: 4px; }

.btn-now {
    padding: 0 12px; border: 1px solid #E5E7EB; background: #F9FAFB;
    border-radius: 12px; font-size: 12px; font-weight: 600; color: var(--text-secondary);
    cursor: pointer; transition: all 0.2s; height: 50px; /* Высота как у инпута */
    display: flex; align-items: center;
}
.btn-now:hover { border-color: var(--accent-time); color: var(--accent-time); background: #fff; }

.divider-icon { 
    display: flex; justify-content: center; margin: -8px 0 8px 0; 
    color: #D1D5DB; 
}

/* Mode Switcher */
.mode-switcher {
    display: flex; background: #F3F4F6; padding: 4px;
    border-radius: 12px; margin-bottom: 16px; gap: 4px;
}
.mode-btn {
    flex: 1; padding: 10px 4px; border: none; background: transparent;
    color: var(--text-secondary); font-size: 13px; font-weight: 600;
    border-radius: 8px; cursor: pointer; transition: all 0.2s; text-align: center;
}
.mode-btn.active { background: #fff; color: var(--text-primary); box-shadow: 0 2px 8px rgba(0,0,0,0.05); }

.helper-text { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* Результаты (Time Card) */
.card--violet { background: var(--gradient-time-card); color: #fff; border: none; text-align: center; }
.card--violet h2 { color: rgba(255,255,255,0.9); margin-bottom: 16px; font-size: 16px; }
@media (min-width: 900px) { .sticky-card { position: sticky; top: 24px; } }

.big-result {
    font-size: 56px; font-weight: 800; line-height: 1; margin-bottom: 24px;
    display: flex; align-items: baseline; justify-content: center; /* Центрирование */
    gap: 12px;
    font-family: monospace; letter-spacing: -0.05em;
}

/* АНАЛОГОВЫЕ ЧАСЫ */
.clock-visual {
    display: flex; justify-content: center; margin-bottom: 24px;
}
.clock-face {
    width: 140px; height: 140px; border-radius: 50%;
    background: rgba(255,255,255,0.15); border: 2px solid rgba(255,255,255,0.3);
    position: relative;
    backdrop-filter: blur(4px);
    box-shadow: inset 0 0 20px rgba(0,0,0,0.1);
}

.clock-center {
    width: 8px; height: 8px; background: #fff; border-radius: 50%;
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    z-index: 10;
}

/* Маркеры (12, 3, 6, 9) */
.clock-marker { position: absolute; background: rgba(255,255,255,0.5); }
.m-12 { top: 6px; left: 50%; transform: translateX(-50%); width: 2px; height: 8px; }
.m-6 { bottom: 6px; left: 50%; transform: translateX(-50%); width: 2px; height: 8px; }
.m-3 { right: 6px; top: 50%; transform: translateY(-50%); width: 8px; height: 2px; }
.m-9 { left: 6px; top: 50%; transform: translateY(-50%); width: 8px; height: 2px; }

/* Стрелки */
.clock-hand {
    position: absolute; bottom: 50%; left: 50%;
    transform-origin: bottom center;
    border-radius: 4px;
    transition: transform 0.5s cubic-bezier(0.4, 2.08, 0.55, 0.44); /* Пружинистый эффект */
}
.hand-hour {
    width: 4px; height: 35px; background: #fff; margin-left: -2px; z-index: 5;
}
.hand-min {
    width: 2px; height: 50px; background: #FCD34D; /* Yellow */ margin-left: -1px; z-index: 6;
}

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

.tip-box {
    font-size: 13px; line-height: 1.5; color: #ffffff !important;
    background: rgba(0, 0, 0, 0.3) !important; padding: 16px; border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    text-align: left; /* Текст подсказки лучше читать слева */
}
.tip-box p { margin: 0; color: #ffffff !important; }


/* --- НОВЫЕ ИНФОРМАЦИОННЫЕ БЛОКИ (Time/Violet Style) --- */

.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 */
.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; /* Из Fuel: 14px */
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    flex-shrink: 0;
    margin-top: -4px;
    color: var(--accent-time); /* Фиолетовая иконка */
}

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

/* Цвета иконок */
.blue-icon svg { color: #3B82F6; }
.green-icon svg { color: #10B981; }
.orange-icon svg { color: #F97316; }
.red-icon svg { color: #EF4444; }

.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); /* Из Fuel: shadow-soft */
    border-radius: 24px; /* Из Fuel: 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); /* Из Fuel: shadow-hover */
}

/* Вертикальный хедер (бейдж сверху) - из Fuel */
.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: #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: #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: #F5F3FF; /* Violet Lightest */
    border: 1px solid #DDD6FE;
    padding: 12px 16px;
    border-radius: 12px;
    font-weight: 700;
    color: var(--accent-time);
    text-align: center;
    margin-bottom: 16px;
    font-size: 15px;
    font-family: monospace;
}

/* 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 (Violet Style - по образцу Fuel) --- */
.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-time); 
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.15); /* Violet 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-time);
    background: var(--accent-time-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-time);
}

.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; }
}