/* Стили страницы "Проектирование" (изолированы через #aberszfo-eng) */
#aberszfo-eng {
    --bg-white: #FFFFFF;
    --bg-gray: #F9FAFB;
    --bg-dark: #0B0F19;
    --bg-panel: #111827;
    --accent: #009FED;
    --accent-hover: #0284C7;
    --danger: #EF4444;
    --text: #111827;
    --text-secondary: #6B7280;
    --text-inverse: #F3F4F6;
    --border: #E5E7EB;
    --radius: 20px;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    font-family: 'Manrope', sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--bg-white);
}
#aberszfo-eng *, #aberszfo-eng *::before, #aberszfo-eng *::after { box-sizing: border-box; }
/* 1. HERO BLOCK */
#aberszfo-eng .eng-hero {
    position: relative;
    background-color: var(--bg-dark);
    background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px),
                      linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
    color: var(--text-inverse);
    padding: 140px 20px 100px;
    overflow: hidden;
}
#aberszfo-eng .eng-hero::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(0, 159, 237, 0.15) 0%, transparent 60%);
    pointer-events: none;
}
#aberszfo-eng .eng-hero__inner {
    position: relative; z-index: 2; max-width: 1000px; margin: 0 auto; text-align: center;
}
#aberszfo-eng .eng-hero__badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; background: rgba(0, 159, 237, 0.1); color: #38BDF8;
    border: 1px solid rgba(0, 159, 237, 0.3); border-radius: 99px;
    font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 24px;
}
#aberszfo-eng .eng-hero__title {
    font-size: 4rem; font-weight: 800; line-height: 1.1; margin: 0 0 24px;
}
#aberszfo-eng .eng-hero__title span { color: var(--accent); }
#aberszfo-eng .eng-hero__desc {
    font-size: 1.25rem; color: #9CA3AF; max-width: 700px; margin: 0 auto 40px;
}

/* 2. БОЛИ И ОШИБКИ */
#aberszfo-eng .eng-pain { padding: 100px 20px; background: var(--bg-gray); }
#aberszfo-eng .container { max-width: 1200px; margin: 0 auto; }
#aberszfo-eng .section-header { text-align: center; margin-bottom: 60px; }
#aberszfo-eng .section-title { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
#aberszfo-eng .section-subtitle { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

#aberszfo-eng .pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
#aberszfo-eng .pain-card {
    background: var(--bg-white); border-radius: var(--radius); padding: 40px 32px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03); border: 1px solid var(--border);
    transition: var(--transition); position: relative; overflow: hidden;
}
#aberszfo-eng .pain-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
    background: var(--danger); transform: scaleX(0); transform-origin: left; transition: var(--transition);
}
#aberszfo-eng .pain-card:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
#aberszfo-eng .pain-card:hover::before { transform: scaleX(1); }
#aberszfo-eng .pain-icon {
    width: 56px; height: 56px; background: rgba(239, 68, 68, 0.1); color: var(--danger);
    border-radius: 16px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px;
}
#aberszfo-eng .pain-icon svg { width: 28px; height: 28px; }
#aberszfo-eng .pain-card h3 { font-size: 1.25rem; font-weight: 700; margin: 0 0 12px; }
#aberszfo-eng .pain-card p { font-size: 0.95rem; color: var(--text-secondary); margin: 0; }

/* 3. ИНТЕРАКТИВ ДО/ПОСЛЕ */
#aberszfo-eng .eng-slider-sec { padding: 100px 20px; background: var(--bg-dark); color: #fff; text-align: center; }
#aberszfo-eng .slider-container {
    position: relative; max-width: 1000px; margin: 40px auto 0;
    aspect-ratio: 16/9; border-radius: var(--radius); overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1); background: #000;
    --pos: 50%;
    isolation: isolate;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
}
#aberszfo-eng .slider-img {
    position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; pointer-events: none;
    transform: translateZ(0);
    backface-visibility: hidden;
}
#aberszfo-eng .img-after { z-index: 1; }
#aberszfo-eng .img-before {
    z-index: 2; clip-path: polygon(0 0, var(--pos) 0, var(--pos) 100%, 0 100%);
}
#aberszfo-eng .slider-handle {
    position: absolute; top: 0; bottom: 0; left: var(--pos); width: 4px; background: var(--accent);
    z-index: 3; transform: translateX(-50%); cursor: ew-resize;
}
#aberszfo-eng .slider-handle::after {
    content: '< >'; font-weight: 900; font-family: monospace; color: var(--accent);
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 48px; height: 48px; background: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3); letter-spacing: -2px;
}

/* 4. ЧТО ВХОДИТ В ПРОЕКТ */
#aberszfo-eng .eng-specs { padding: 100px 20px; }
#aberszfo-eng .specs-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
#aberszfo-eng .spec-item {
    display: flex; gap: 20px; align-items: flex-start; padding: 24px;
    background: var(--bg-gray); border-radius: 16px; transition: var(--transition);
}
#aberszfo-eng .spec-item:hover { background: #fff; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
#aberszfo-eng .spec-icon { color: var(--accent); display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: rgba(0,159,237,0.1); border-radius: 12px; flex-shrink: 0; }
#aberszfo-eng .spec-icon svg { width: 20px; height: 20px; }
#aberszfo-eng .spec-item h4 { font-size: 1.1rem; font-weight: 700; margin: 0 0 8px; }
#aberszfo-eng .spec-item p { font-size: 0.9rem; color: var(--text-secondary); margin: 0; line-height: 1.5; }

/* 5. ОФФЕР-ЛОВУШКА */
#aberszfo-eng .eng-offer {
    max-width: 1000px; margin: 0 auto; background: var(--bg-panel); color: #fff;
    border-radius: var(--radius); padding: 56px; text-align: center;
    position: relative; overflow: hidden; box-shadow: 0 30px 60px rgba(0,0,0,0.2);
}
#aberszfo-eng .eng-offer::before {
    content: ''; position: absolute; left: -20px; top: 50%; transform: translateY(-50%);
    width: 40px; height: 40px; background: var(--bg-white); border-radius: 50%;
}
#aberszfo-eng .eng-offer::after {
    content: ''; position: absolute; right: -20px; top: 50%; transform: translateY(-50%);
    width: 40px; height: 40px; background: var(--bg-white); border-radius: 50%;
}
#aberszfo-eng .eng-offer__border {
    position: absolute; top: 20px; bottom: 20px; left: 50%; transform: translateX(-50%);
    width: 1px; border-left: 2px dashed rgba(255,255,255,0.1);
}
#aberszfo-eng .eng-offer-grid {
    display: grid; grid-template-columns: 1fr 1fr; position: relative; z-index: 2; align-items: center; gap: 40px;
}
#aberszfo-eng .offer-col { text-align: left; }
#aberszfo-eng .offer-col-right { padding-left: 20px; }
#aberszfo-eng .offer-price { font-size: 3.5rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 8px; }
#aberszfo-eng .offer-label { font-size: 1.1rem; color: #9CA3AF; text-transform: uppercase; font-weight: 700; letter-spacing: 1px; margin-bottom: 16px; display: block; }

/* 6. ФОРМА ЗАХВАТА */
#aberszfo-eng .eng-form-sec { padding: 100px 20px; }
#aberszfo-eng .eng-form-box {
    max-width: 800px; margin: 0 auto; background: var(--bg-gray);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 48px;
}
#aberszfo-eng .btn-submit {
    display: inline-flex; align-items: center; justify-content: center; width: 100%;
    background: var(--accent); color: #fff; border: none; padding: 20px;
    font-size: 1.1rem; font-weight: 700; border-radius: 12px; cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s; font-family: inherit; margin-top: 16px;
}
#aberszfo-eng .btn-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(0,159,237,0.3); }
#aberszfo-eng .eng-dropzone {
    position: relative; background: #fff; border: 2px dashed rgba(0, 159, 237, 0.4);
    border-radius: 12px; padding: 32px 20px; text-align: center; cursor: pointer;
    transition: 0.3s; margin-bottom: 24px;
}
#aberszfo-eng .eng-dropzone:hover { border-color: var(--accent); background: rgba(0,159,237,0.02); }
#aberszfo-eng .eng-dropzone input[type="file"] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
#aberszfo-eng .eng-dropzone svg { width: 40px; height: 40px; color: var(--accent); margin-bottom: 12px; display: block; margin-left: auto; margin-right: auto; }
#aberszfo-eng .eng-dropzone__text { font-weight: 700; font-size: 1.1rem; color: var(--text); margin-bottom: 4px; }
#aberszfo-eng .eng-dropzone__filename { color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-top: 8px; }
#aberszfo-eng .eng-form-row { display: flex; gap: 16px; margin-bottom: 16px; }
#aberszfo-eng .eng-form-row input { flex: 1; padding: 16px; border: 1px solid var(--border); border-radius: 12px; font-family: inherit; font-size: 1rem; }
#aberszfo-eng .eng-form-row input:focus { outline: none; border-color: var(--accent); }
#aberszfo-eng .eng-form-policy { text-align: center; font-size: 0.75rem; color: #9CA3AF; margin-top: 16px; }

/* Адаптив */
@media (max-width: 900px) {
    #aberszfo-eng .eng-hero__title { font-size: 2.75rem; }
    #aberszfo-eng .pain-grid { grid-template-columns: 1fr; }
    #aberszfo-eng .specs-grid { grid-template-columns: 1fr; }
    #aberszfo-eng .eng-offer-grid { grid-template-columns: 1fr; text-align: center; gap: 24px; }
    #aberszfo-eng .offer-col { text-align: center; }
    #aberszfo-eng .offer-col-right { padding-left: 0; }
    #aberszfo-eng .eng-offer::before, #aberszfo-eng .eng-offer::after, #aberszfo-eng .eng-offer__border { display: none; }
    #aberszfo-eng .eng-form-box { padding: 32px 20px; }
    #aberszfo-eng .eng-form-row { flex-direction: column; }
}