/* calc/assets/css/calculators/deg_rad.css */

:root {
    --bg-blueprint-card: #082F49; /* Скай 900 (Глубокий синий) */
    --text-blueprint-main: #F0F9FF;
    --text-blueprint-muted: #7DD3FC;
    --accent-blueprint: #22D3EE; /* Неоновый циан */
    --accent-blueprint-glow: rgba(34, 211, 238, 0.4);
    --grid-line-color: rgba(56, 189, 248, 0.15);
}

/* =========================================
   ОСНОВНАЯ СЕТКА И КАРКАС
   ========================================= */
.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: 1fr 1fr; } }

.calc-inputs { gap: 16px; }
.group-title { font-size: 15px; font-weight: 800; color: #334155; margin: 0 0 16px 0; text-transform: uppercase; letter-spacing: 0.05em;}

.input-group { margin-bottom: 12px; }
.input-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }

.input-wrapper { position: relative; display: flex; align-items: center; }
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 input {
    width: 100%; padding: 14px 16px; font-size: 16px; font-weight: 600;
    border: 1px solid #CBD5E1; border-radius: 10px;
    outline: none; transition: border 0.2s, box-shadow 0.2s;
    font-family: inherit; background: #fff; padding-right: 80px;
}
.input-wrapper input:focus { border-color: #0284C7; box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15); }
.suffix { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); pointer-events: none; font-size: 14px; color: var(--text-secondary); font-weight: 700;}

/* Иконка перевода между полями */
.conversion-arrows {
    display: flex; justify-content: center; align-items: center;
    height: 40px; color: #94A3B8; font-size: 24px;
}

.info-alert {
    display: flex; align-items: flex-start; gap: 12px;
    background: #F0F9FF; border: 1px solid #BAE6FD;
    padding: 16px; border-radius: 12px; margin-top: 16px;
    color: #0369A1; font-size: 13px; line-height: 1.5;
}
.info-alert svg { flex-shrink: 0; color: #0284C7; margin-top: -2px; }

/* =========================================
   ПРАВАЯ КАРТОЧКА (Blueprint Theme)
   ========================================= */
.card--blueprint { 
    background: var(--bg-blueprint-card); 
    /* Текстура чертежной миллиметровки */
    background-image: 
        linear-gradient(var(--grid-line-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line-color) 1px, transparent 1px);
    background-size: 20px 20px;
    color: var(--text-blueprint-main); 
    border: 1px solid #0C4A6E; border-radius: 20px;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.4);
    overflow: hidden; padding: 24px 0 0 0; 
}
@media (min-width: 900px) { .sticky-card { position: sticky; top: 24px; } }

.blueprint-title { 
    color: var(--accent-blueprint); margin: 0 24px 20px; 
    font-size: 14px; text-align: center; 
    font-weight: 800; letter-spacing: 0.1em;
}

/* KILLER FEATURE: CANVAS CONTAINER */
.canvas-container-wrapper {
    width: 100%; height: 320px; 
    display: flex; align-items: center; justify-content: center;
    position: relative;
    border-top: 1px solid rgba(34, 211, 238, 0.2); 
    border-bottom: 1px solid rgba(34, 211, 238, 0.2);
    background: rgba(0,0,0,0.2);
}
#math-canvas {
    max-width: 100%; max-height: 100%;
}

/* Результаты (Neon Cyan) */
.blueprint-result-main { text-align: center; margin: 24px 0; padding: 0 24px; }
.rec-label { font-size: 13px; color: var(--text-blueprint-muted); font-weight: 600; text-transform: uppercase; margin-bottom: 8px; }
.rec-value { 
    font-size: 42px; font-weight: 800; color: var(--accent-blueprint); 
    line-height: 1; text-shadow: 0 0 15px var(--accent-blueprint-glow); 
}

.blueprint-divider { height: 1px; background: rgba(34, 211, 238, 0.2); margin: 0 24px; }

/* Детали карточки */
.details-list { display: flex; flex-direction: column; background: rgba(0,0,0,0.3); margin: 0;}
.detail-row { display: flex; justify-content: space-between; align-items: center; padding: 16px 24px; font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.detail-row:last-child { border-bottom: none; }
.detail-row strong { font-size: 16px; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums;}

/* =========================================
   SEO ИНФОБЛОКИ И ТАБЛИЦА
   ========================================= */
.info-wrapper { padding: 60px 0; margin-top: 60px; border-top: 1px solid rgba(0,0,0,0.06); margin-bottom: 20px; }
.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; }

.cyan-icon svg { color: #06B6D4; }
.slate-icon svg { color: #475569; }

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

.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; display: flex; flex-direction: column; }
.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; }

.badge-cyan { background: #06B6D4; color: #fff; padding: 6px 12px; border-radius: 99px; font-size: 11px; font-weight: 700; text-transform: uppercase; }
.badge-blue { background: #3B82F6; color: #fff; padding: 6px 12px; border-radius: 99px; font-size: 11px; font-weight: 700; text-transform: uppercase; }

.formula-card p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.5; font-weight: 500; }
.math-expression { background: #F0F9FF; border: 1px solid #BAE6FD; padding: 12px 16px; border-radius: 12px; font-weight: 700; color: #0284C7; text-align: center; margin-bottom: 16px; font-size: 16px; letter-spacing: 0.05em;}

/* SEO-ТАБЛИЦА */
.seo-table-container { background: #fff; border: 1px solid #E5E7EB; border-radius: 16px; padding: 24px; margin-bottom: 40px; box-shadow: 0 4px 15px rgba(0,0,0,0.02); }
.seo-table-container h3 { margin-top: 0; margin-bottom: 20px; color: #1E293B; font-size: 18px; }
.seo-table { width: 100%; border-collapse: collapse; text-align: left; }
.seo-table th { background: #F8FAFC; padding: 12px 16px; font-weight: 700; color: #475569; border-bottom: 2px solid #E2E8F0; }
.seo-table td { padding: 16px; border-bottom: 1px solid #E2E8F0; color: #1E293B; font-weight: 500; }
.seo-table tr:last-child td { border-bottom: none; }

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

/* FAQ */
.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: #06B6D4; box-shadow: 0 4px 20px rgba(6, 182, 212, 0.15); }
summary.faq-question { padding: 16px 20px; cursor: pointer; font-weight: 600; color: var(--text-primary); list-style: none; display: flex; justify-content: space-between; align-items: center; transition: background 0.2s; }
summary.faq-question:hover { background-color: #ECFEFF; }
.faq-section .faq-item[open] summary.faq-question { color: #0891B2; background: #ECFEFF; }
.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: #0891B2; }
.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; }
    .seo-table-container { padding: 16px; overflow-x: auto; }
    .seo-table th, .seo-table td { padding: 12px 10px; font-size: 14px; }
}