/* ============================================================
   styles.css – Основные стили конструктора ТЗ на сервер
   Версия 5.3
   ============================================================ */

/* ---------- ПЕРЕМЕННЫЕ (цвета, тени, скругления) ---------- */
:root {
    --color-bg-page: #f0f4f8;
    --color-card-bg: #ffffff;
    --color-primary: #1b4f6e;
    --color-accent: #1f6e8c;
    --color-accent-light: #2c8cae;
    --color-text-dark: #1a2c3e;
    --color-text-secondary: #2c3f4c;
    --color-text-muted: #5c7f8c;
    --color-border: #e2edf2;
    --radius-card: 2rem;
    --radius-block: 1.5rem;
    --shadow-card: 0 25px 45px -12px rgba(0,0,0,0.2);
    --shadow-hover: 0 20px 25px -12px rgba(0,0,0,0.1);
    --transition: all 0.2s ease;
}

/* ---------- ОБЩИЕ СБРОСЫ ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--color-bg-page);
    font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
    padding: 1.5rem 1rem;
    line-height: 1.5;
    color: var(--color-text-dark);
}

/* ---------- ОСНОВНАЯ КАРТОЧКА ---------- */
.service-card {
    max-width: 1280px;
    margin: 0 auto;
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
}

/* ---------- ХЕДЕР ---------- */
.service-header {
    background: linear-gradient(135deg, #0b2b3b, #1b4f6e);
    padding: 1.5rem 2rem;
    color: white;
}

.badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(4px);
    padding: 0.2rem 0.9rem;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff7e0;
}

.service-header h1 {
    font-size: 1.9rem;
    font-weight: 700;
    color: #fff7e0;
    line-height: 1.2;
    margin-bottom: 0.2rem;
}

.service-header p {
    font-size: 1rem;
    opacity: 0.95;
    color: #fff7e0;
}

/* ---------- ОСНОВНОЙ КОНТЕНТ ---------- */
.service-content {
    padding: 1.5rem 2rem 2rem;
}

/* ---------- БЛОКИ (карточки параметров и результатов) ---------- */
.info-block {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-block);
    padding: 1.2rem 1.2rem 1.5rem;
    transition: var(--transition);
    box-shadow: 0 5px 12px rgba(0,0,0,0.02);
}

.info-block:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: #cbdbe2;
}

.block-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: #1a5d7a;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.block-title::before {
    content: "▍";
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-accent-light);
}

/* ---------- СЕТКА ФОРМЫ (ТРИ КОЛОНКИ) ---------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem 1.2rem;
}

.form-grid .full-width {
    grid-column: 1 / -1;
}

/* ---------- ЭЛЕМЕНТЫ УПРАВЛЕНИЯ ---------- */
.control-group {
    margin-bottom: 0;
}

.control-group label {
    display: block;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.15rem;
}

.control-group select,
.control-group input {
    width: 100%;
    padding: 0.4rem 0.7rem;
    border-radius: 0.8rem;
    border: 1px solid var(--color-border);
    font-size: 0.85rem;
    background: #fff;
    transition: var(--transition);
}

.control-group select:focus,
.control-group input:focus {
    border-color: var(--color-accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(31,110,140,0.15);
}

.control-group .hint {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin-top: 0.1rem;
    line-height: 1.2;
}

/* ---------- КНОПКИ ---------- */
.btn-row {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-top: 0.8rem;
}

.btn {
    background: #eef3f8;
    border: 1px solid var(--color-border);
    padding: 0.4rem 1.2rem;
    border-radius: 40px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
    color: var(--color-text-dark);
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: #155a73;
    border-color: #155a73;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px -6px rgba(31,110,140,0.3);
}

.btn-secondary:hover {
    background: #dce8ef;
    transform: translateY(-2px);
}

/* ---------- СПЕЦИФИКАЦИЯ (таблица) ---------- */
.spec-header {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a5d7a;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 0.8rem;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
    font-size: 0.85rem;
}

.spec-table th {
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 0.4rem 0.6rem;
    text-align: left;
}

.spec-table td {
    padding: 0.4rem 0.6rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.spec-table tr:last-child td {
    border-bottom: none;
}

.spec-table .component {
    font-weight: 600;
    color: #0f4f8a;
    white-space: nowrap;
}

.spec-table .reason {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ---------- ТЕХНИЧЕСКАЯ ЗАМЕТКА ---------- */
.tech-note {
    background: #f8fafd;
    border-radius: 0.8rem;
    padding: 0.5rem 0.8rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.7rem;
    border: 1px solid #dce5ec;
    margin-top: 0.6rem;
    color: #0a4055;
}

/* ---------- ПУСТОЕ СОСТОЯНИЕ ---------- */
.empty-spec {
    text-align: center;
    color: var(--color-text-muted);
    padding: 1.2rem 0;
    font-size: 0.9rem;
}

/* ---------- КОЛЛ-АУТ (ПОДСКАЗКА) ---------- */
.callout {
    background: #e6f3f9;
    border-radius: 1.2rem;
    padding: 0.6rem 1.2rem;
    margin: 1rem 0 0.6rem;
    text-align: center;
    font-weight: 500;
    font-size: 0.85rem;
    color: #004d66;
}

/* ---------- РАЗДЕЛИТЕЛЬ ---------- */
hr {
    margin: 0.8rem 0;
    border: 0;
    height: 1px;
    background: linear-gradient(90deg, #cbdde6, transparent);
}

/* ---------- ФУТЕР ---------- */
.footer-note {
    font-size: 0.7rem;
    text-align: center;
    color: var(--color-text-muted);
    margin-top: 1rem;
    border-top: 1px solid #dee9ef;
    padding-top: 0.6rem;
}

/* ============================================================
   АДАПТИВНОСТЬ
   ============================================================ */

/* Планшеты и маленькие экраны – перестраиваем сетку в 2 колонки */
@media (max-width: 900px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Мобильные устройства – одна колонка */
@media (max-width: 600px) {
    .service-header {
        padding: 1.2rem;
    }
    .service-content {
        padding: 1rem;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .service-header h1 {
        font-size: 1.5rem;
    }
    .info-block {
        padding: 0.8rem;
    }
    .spec-table {
        font-size: 0.75rem;
    }
    .spec-table th,
    .spec-table td {
        padding: 0.3rem 0.4rem;
    }
    .spec-table .component {
        white-space: normal;
    }
    .btn-row {
        flex-direction: column;
        align-items: stretch;
    }
    .btn {
        text-align: center;
    }
}

/* Очень маленькие экраны (до 400px) */
@media (max-width: 400px) {
    body {
        padding: 0.5rem;
    }
    .service-header h1 {
        font-size: 1.2rem;
    }
    .service-header p {
        font-size: 0.85rem;
    }
    .block-title {
        font-size: 1rem;
    }
    .control-group label {
        font-size: 0.7rem;
    }
    .control-group select,
    .control-group input {
        font-size: 0.75rem;
        padding: 0.3rem 0.5rem;
    }
}