/* --- Стили для GTA Reseller (Gamer Theme) --- */
:root {
    --accent-gta: #8B5CF6; /* Purple */
    --accent-gta-green: #22C55E; /* Green money */
    --accent-gta-light: #F3E8FF; /* Purple Light */
    --gradient-gta-card: linear-gradient(135deg, #111827 0%, #4C1D95 100%);
    --bg-dark-card: #1F2937;
}

.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: 1.2fr 0.8fr; } }

/* Inputs */
.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 {
    width: 100%; padding: 14px 16px; padding-right: 40px;
    font-size: 16px; font-weight: 500;
    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-gta); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15); }

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

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

.btn--gta {
    width: 100%; background: var(--accent-gta); color: #fff;
    padding: 14px; border-radius: 12px; font-weight: 700; font-size: 16px;
    margin-top: 8px; border: none; cursor: pointer; transition: all 0.2s;
}
.btn--gta:hover { background: #7C3AED; box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3); }

/* Карточка результата (Dark GTA) */
.card--gta { background: var(--gradient-gta-card); color: #fff; border: none; }
.card--gta h2 { color: rgba(255,255,255,0.9); margin-bottom: 20px; font-size: 16px; }
@media (min-width: 900px) { .sticky-card { position: sticky; top: 24px; } }

.gta-profit-box {
    text-align: center; margin-bottom: 24px;
}
.gta-label { font-size: 14px; opacity: 0.8; display: block; margin-bottom: 4px; }
.gta-val { font-size: 48px; font-weight: 800; color: #4ADE80; line-height: 1; text-shadow: 0 2px 10px rgba(74, 222, 128, 0.3); }

.summary-divider { height: 1px; background: rgba(255,255,255,0.15); 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(255,255,255,0.1); 
    padding-bottom: 10px; font-size: 14px;
}
.detail-row strong { font-size: 16px; font-weight: 700; }

/* История */
.history-section {
    background: rgba(0,0,0,0.3); border-radius: 12px; padding: 16px;
    border: 1px solid rgba(255,255,255,0.1);
}
.history-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.history-header h3 { margin: 0; font-size: 14px; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.7; }

.history-actions { display: flex; gap: 8px; }

.btn-icon-action {
    background: rgba(255,255,255,0.1); border: none; cursor: pointer; 
    font-size: 16px; width: 32px; height: 32px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.btn-icon-action:hover { background: rgba(255,255,255,0.2); }
.btn-del-all:hover { background: #EF4444; color: #fff; }

.history-list {
    max-height: 200px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px;
    margin-bottom: 12px; padding-right: 4px;
}
.history-list::-webkit-scrollbar { width: 4px; }
.history-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }

.empty-state-gta { text-align: center; font-size: 13px; opacity: 0.5; padding: 20px 0; }

.h-item {
    background: rgba(255,255,255,0.05); padding: 8px 10px; border-radius: 8px;
    display: flex; justify-content: space-between; align-items: center; font-size: 13px;
    border-left: 3px solid transparent;
}
.h-item.win { border-left-color: #4ADE80; }
.h-item.lose { border-left-color: #EF4444; }

.h-info { display: flex; flex-direction: column; }
.h-name { font-weight: 700; margin-bottom: 2px; }
.h-meta { font-size: 11px; opacity: 0.7; }
.h-profit { font-weight: 700; font-size: 14px; }
.h-profit.win { color: #4ADE80; }
.h-profit.lose { color: #EF4444; }

.h-del { cursor: pointer; margin-left: 10px; opacity: 0.5; font-size: 16px; }
.h-del:hover { opacity: 1; color: #EF4444; }

.history-total {
    border-top: 1px solid rgba(255,255,255,0.1); padding-top: 12px;
    display: flex; justify-content: space-between; font-size: 14px;
}
.history-total strong { color: #fff; font-size: 16px; }

/* --- Модальное окно (Dark Mode) --- */
.custom-modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6); 
    backdrop-filter: blur(4px); 
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
    opacity: 0; visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.custom-modal-overlay.active { opacity: 1; visibility: visible; }

.custom-modal {
    background: var(--bg-dark-card);
    width: 90%; max-width: 320px;
    padding: 24px; border-radius: 20px;
    text-align: center;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); 
    box-shadow: 0 20px 40px -5px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255,255,255,0.1);
}

.custom-modal-overlay.active .custom-modal { transform: translateY(0) scale(1); }

.modal-icon {
    font-size: 32px; margin-bottom: 12px;
    background: rgba(239, 68, 68, 0.2); width: 64px; height: 64px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; margin: 0 auto 16px;
}

.custom-modal h3 {
    font-size: 18px; font-weight: 700; margin-bottom: 8px; color: #fff;
}

.custom-modal p {
    font-size: 13px; color: rgba(255,255,255,0.7); margin-bottom: 24px; line-height: 1.5;
}

.modal-actions { display: flex; gap: 12px; }

.btn-modal {
    flex: 1; padding: 12px; border-radius: 12px; font-weight: 600; font-size: 14px;
    cursor: pointer; border: none; transition: background 0.2s;
}

.btn-cancel { background: rgba(255,255,255,0.1); color: #fff; }
.btn-cancel:hover { background: rgba(255,255,255,0.15); }

.btn-confirm {
    background: #EF4444; color: #fff;
    box-shadow: 0 4px 6px rgba(239, 68, 68, 0.2);
}
.btn-confirm:hover { background: #DC2626; }

/* --- ИНФОРМАЦИОННЫЕ БЛОКИ (Адаптация под GTA/Fuel 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 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-gta-green); } /* Используем зеленый из GTA темы */
.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 */
.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-gta-green); 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-gta-light); /* Purple Light */
    border: 1px solid #E9D5FF;
    padding: 12px 16px;
    border-radius: 12px;
    font-weight: 700;
    color: var(--accent-gta); /* Purple 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 Секция (GTA Style) --- */
.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-gta); 
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.15); /* Purple 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-gta);
    background: var(--accent-gta-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-gta);
}

/* Адаптация для внутреннего блока с текстом */
.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; }
}