:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --accent: #f59e0b;
    --dark: #0f172a;
    --gray: #64748b;
    --light: #f8fafc;
    --border: #e2e8f0;
    --white: #ffffff;
    --radius: 14px;
    --shadow: 0 4px 20px rgba(15,23,42,.08);
    --shadow-lg: 0 20px 40px rgba(15,23,42,.12);
    --transition: .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: var(--white);
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

a { color: inherit; }

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
}
.btn--primary {
    background: var(--primary);
    color: var(--white);
}
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,99,235,.3); }
.btn--outline {
    border-color: var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn--outline:hover { background: var(--primary); color: var(--white); }
.btn--small { padding: 9px 20px; font-size: .9rem; }
.btn--full { width: 100%; }

/* Шапка */
.header {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
}
.logo i { color: var(--primary); font-size: 1.6rem; }
.logo strong { color: var(--primary); }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
    font-size: .95rem;
}
.nav a:hover { color: var(--primary); }
.burger {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* Герой */
.hero {
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 60%, #fef3c7 130%);
    padding: 70px 0 90px;
    overflow: hidden;
}
.hero__inner {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero__badge {
    display: inline-block;
    background: rgba(37,99,235,.1);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 18px;
}
.hero h1 {
    font-size: 3rem;
    line-height: 1.12;
    margin-bottom: 18px;
    letter-spacing: -.02em;
}
.accent { color: var(--primary); }
.roads {
    display: flex;
    gap: 10px;
    margin-bottom: 22px;
    flex-wrap: wrap;
}
.road {
    background: var(--dark);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 8px;
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: .05em;
}
.hero__lead { font-size: 1.15rem; color: var(--gray); margin-bottom: 8px; }
.hero__lead strong { color: var(--dark); }
.hero__sub { font-size: 1.05rem; color: var(--dark); font-weight: 600; margin-bottom: 14px; }
.hero__price {
    font-size: 1.1rem;
    padding: 14px 18px;
    background: var(--white);
    border-radius: 10px;
    border-left: 4px solid var(--accent);
    margin-bottom: 28px;
    box-shadow: var(--shadow);
}
.hero__price strong { color: var(--dark); font-size: 1.25rem; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__visual { display: flex; justify-content: center; }
.card-mock {
    width: 320px;
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    border-radius: 18px;
    padding: 26px;
    color: white;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 18px;
    animation: float 5s ease-in-out infinite;
    position: relative;
}
.card-mock::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255,255,255,.3), transparent);
    z-index: -1;
}
@keyframes float {
    0%,100% { transform: translateY(0) rotate(-1deg); }
    50% { transform: translateY(-14px) rotate(1deg); }
}
.card-mock__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    letter-spacing: .15em;
    font-size: .85rem;
}
.card-mock__top i { font-size: 1.6rem; }
.card-mock__num {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: .08em;
    padding: 12px;
    background: rgba(255,255,255,.15);
    border-radius: 10px;
    text-align: center;
}
.card-mock__lines { display: flex; flex-direction: column; gap: 8px; }
.card-mock__lines span {
    height: 6px;
    background: rgba(255,255,255,.35);
    border-radius: 3px;
}
.card-mock__lines span:nth-child(1) { width: 85%; }
.card-mock__lines span:nth-child(2) { width: 65%; }
.card-mock__lines span:nth-child(3) { width: 45%; }
.card-mock__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .85rem;
    opacity: .9;
}
.card-mock__bottom i { font-size: 1.8rem; }

/* Секции */
.section { padding: 80px 0; }
.section--alt { background: var(--light); }
.section--dark {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: var(--white);
}
.section__title {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -.02em;
}
.section__title--light { color: var(--white); }
.section__subtitle {
    text-align: center;
    color: var(--gray);
    max-width: 620px;
    margin: 0 auto 50px;
}
.section--dark .section__subtitle { color: #94a3b8; }

/* Преимущества */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.feature {
    background: var(--white);
    padding: 32px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
    transition: var(--transition);
}
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature i { font-size: 2rem; color: var(--primary); margin-bottom: 16px; }
.feature h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature p { color: var(--gray); font-size: .92rem; }

/* Достижения */
.achievements {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}
.achievement {
    padding: 30px 20px;
    border-radius: var(--radius);
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    transition: var(--transition);
}
.achievement:hover { background: rgba(255,255,255,.08); }
.achievement strong {
    display: block;
    font-size: 3rem;
    background: linear-gradient(135deg, #60a5fa, #f59e0b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}
.achievement span {
    display: block;
    font-weight: 600;
    font-size: 1.05rem;
    margin-bottom: 6px;
}
.achievement p { color: #94a3b8; font-size: .9rem; }

/* Шаги */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.step {
    text-align: center;
    padding: 36px 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
}
.step:hover { transform: translateY(-6px); }
.step__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 18px;
    box-shadow: 0 8px 20px rgba(37,99,235,.3);
}
.step h3 { margin-bottom: 10px; font-size: 1.15rem; }
.step p { color: var(--gray); font-size: .95rem; }

/* Цены */
.prices {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
    align-items: stretch;
}
.price-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    transition: var(--transition);
    border: 2px solid transparent;
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.price-card--featured {
    border-color: var(--primary);
    transform: scale(1.03);
}
.price-card--featured:hover { transform: scale(1.03) translateY(-6px); }
.price-card__label {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--white);
    padding: 4px 16px;
    border-radius: 30px;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .05em;
    text-transform: uppercase;
}
.price-card h3 { font-size: 1.25rem; }
.price-card__sub { color: var(--gray); font-size: .9rem; }
.price-card__desc { color: var(--gray); font-size: .9rem; margin-bottom: 10px; }
.price-card__value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin: 14px 0 18px;
}
.price-card .btn { margin-top: auto; }

/* Документы */
.docs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}
.docs__col {
    background: var(--white);
    padding: 32px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.docs__col h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.docs__col ul { list-style: none; }
.docs__col li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: .95rem;
}
.docs__col li:last-child { border-bottom: none; }
.docs__col li span {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: rgba(37,99,235,.1);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .85rem;
}
.docs__sub {
    margin: 18px 0 10px;
    font-weight: 600;
    font-size: .9rem;
    color: var(--dark);
}

/* Важно */
.important {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.important__item {
    background: var(--white);
    padding: 28px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    border-left: 4px solid var(--accent);
}
.important__item i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 14px;
}
.important__item p { color: var(--dark); font-weight: 500; font-size: .95rem; }
.important__item a { color: var(--primary); font-weight: 600; }

/* Контакты */
.contacts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.contact-card {
    background: var(--white);
    padding: 30px 22px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    text-decoration: none;
    color: var(--dark);
    transition: var(--transition);
    border: 2px solid transparent;
}
.contact-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}
.contact-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 14px;
    display: block;
}
.contact-card__label {
    display: block;
    font-size: .8rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 6px;
}
.contact-card__value { font-weight: 700; font-size: .98rem; }

/* Футер */
.footer {
    background: var(--dark);
    color: #cbd5e1;
    padding: 40px 0 30px;
}
.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}
.footer__brand i { font-size: 1.5rem; color: var(--primary); }
.footer__brand span { font-size: 1.1rem; font-weight: 700; color: white; margin-left: 8px; }
.footer__brand p { margin-top: 6px; font-size: .85rem; color: #94a3b8; }
.footer__copy { font-size: .9rem; }

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal.active { display: flex; }
.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15,23,42,.6);
    backdrop-filter: blur(4px);
    animation: fadeIn .25s ease;
}
.modal__container {
    position: relative;
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp .3s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--gray);
    line-height: 1;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: var(--transition);
}
.modal__close:hover { background: var(--light); color: var(--dark); }
.modal__container h2 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    padding-right: 30px;
}
.modal__sub {
    color: var(--gray);
    margin-bottom: 26px;
    font-size: .95rem;
}

/* Форма */
.form__group {
    display: flex;
    flex-direction: column;
    margin-bottom: 18px;
}
.form__group label {
    font-weight: 600;
    margin-bottom: 6px;
    font-size: .92rem;
}
.form__group label span { color: #ef4444; }
.form__group input,
.form__group select,
.form__group textarea {
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form__group textarea { resize: vertical; }
.form .btn { margin-top: 8px; }

/* Оповещения */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    font-weight: 500;
    margin-bottom: 20px;
    font-size: .95rem;
}
.alert--success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.alert--error { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }

/* Результат проверки */
.check-result {
    margin-top: 20px;
    font-size: .95rem;
}
.check-result__box {
    padding: 18px 20px;
    border-radius: 10px;
    border-left: 4px solid;
}
.check-result__box--ok {
    background: #dcfce7;
    border-color: #16a34a;
    color: #166534;
}
.check-result__box--fail {
    background: #fee2e2;
    border-color: #dc2626;
    color: #991b1b;
}
.check-result__box strong { display: block; margin-bottom: 6px; font-size: 1rem; }

/* Адаптив */
@media (max-width: 1000px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .contacts { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .hero { padding: 50px 0 70px; }
    .hero__inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
    .hero__actions, .roads { justify-content: center; }
    .hero__visual { order: -1; }
    .hero h1 { font-size: 2.4rem; }
    .section { padding: 60px 0; }
    .section__title { font-size: 1.8rem; }
    .achievements, .steps, .prices, .docs, .important { grid-template-columns: 1fr; }
    .price-card--featured { transform: none; }
    .price-card--featured:hover { transform: translateY(-6px); }
}
@media (max-width: 640px) {
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow);
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }
    .nav.active { display: flex; }
    .burger { display: block; }
    .hero h1 { font-size: 2rem; }
    .features-grid { grid-template-columns: 1fr; }
    .contacts { grid-template-columns: 1fr; }
    .modal__container { padding: 28px 22px; }
    .footer__inner { flex-direction: column; text-align: center; }
}