:root {
    --primary-blue: #1E3A8A;
    --secondary-blue: #3B82F6;
    --light-blue: #DBEAFE;
    --dark-bg: #0F172A;
    --light-gray: #F8FAFC;
    --text-dark: #1E293B;
    --text-gray: #64748B;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

/* =============================================== */
/* НОВЫЙ ХЕДЕР (ПЕРЕСБОРКА С НУЛЯ) */
/* =============================================== */

/* -- 1. Стили для десктопа (по умолчанию) -- */

.logo-image-header {
    height: 80px;
    width: auto;
}

.nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
    font-size: 0.95rem;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-blue) !important;
}

.header-phone {
    font-weight: 600;
    color: #0d6efd;
    white-space: nowrap;
    margin-right: 1.5rem;
    text-decoration: none;
}
.header-phone:hover {
    color: #0b5ed7;
}

.btn-primary-custom {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    white-space: nowrap;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary-custom:hover {
    background: var(--secondary-blue);
}

/* -- 2. Стили для мобильных устройств -- */
@media (max-width: 991.98px) {
    /* Контейнер контента меню */
    .navbar-collapse {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid #eee;
    }
    
    /* Центрируем ссылки */
    .navbar-nav {
        text-align: center;
        margin-bottom: 1rem;
    }

    /* Контейнер для телефона и кнопки */
    .right-actions-wrapper {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .header-phone {
        margin-right: 0; /* Убираем отступ справа на мобильных */
    }

    .btn-primary-custom {
        width: 100%;
        max-width: 300px;
        text-align: center;
        /* На мобильных разрешаем перенос текста внутри кнопки */
        white-space: normal;
        overflow-wrap: anywhere;
        word-break: break-word;
        line-height: 1.3;
        padding: 0.7rem 1rem;
        font-size: 0.95rem;
    }
}


/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-bg) 100%);
    color: white;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 1;
    z-index: 0;
}


.hero-content {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

/* Responsive heading sizing for hero */
@media (max-width: 1200px) {
    .hero-section h1, .hero-section .display-3 { font-size: 3rem; }
}
@media (max-width: 991.98px) {
    .hero-section h1, .hero-section .display-3 { font-size: 2.4rem; line-height: 1.2; }
}
@media (max-width: 768px) {
    .hero-section h1, .hero-section .display-3 { font-size: 2rem; }
}
@media (max-width: 576px) {
    .hero-section h1, .hero-section .display-3 { font-size: 1.75rem; }
}

.hero-section .lead {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Responsive lead sizing */
@media (max-width: 1200px) {
    .hero-section .lead { font-size: 1.2rem; }
}
@media (max-width: 991.98px) {
    .hero-section .lead { font-size: 1.1rem; }
}
@media (max-width: 768px) {
    .hero-section .lead { font-size: 1rem; }
}
@media (max-width: 576px) {
    .hero-section .lead { font-size: 0.95rem; }
}

/* Section Styles */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--primary-blue);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Card Styles */
.card-custom {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.07);
    transition: all 0.3s ease;
    height: 100%;
    padding: 2rem;
}

.card-custom:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: var(--light-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--primary-blue);
}

.card-custom h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.card-custom p, .card-custom ul {
    color: var(--text-gray);
    line-height: 1.8;
}

/* Problem Section */
.problem-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.problem-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

/* Solution List */
.solution-list {
    list-style: none;
    padding: 0;
}

.solution-list li {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    background: var(--light-gray);
    border-radius: 8px;
    border-left: 4px solid var(--secondary-blue);
}

.solution-list li strong {
    color: var(--primary-blue);
    font-size: 1.1rem;
}

/* CTA Section */
.cta-section {
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.cta-phone {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 2rem 0;
    text-decoration: none;
    color: white;
    display: block;
}

.cta-phone:hover {
    color: var(--light-blue);
}

/* Form Styles */
.form-modal {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    margin: 2rem auto;
}

.form-control, .form-select {
    border-radius: 8px;
    padding: 0.8rem;
    border: 1px solid #E2E8F0;
    margin-bottom: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(30, 58, 138, 0.15);
}

.form-check-input:checked {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(30, 58, 138, 0.3);
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: white;
    padding: 3rem 0 1rem 0;
}

.footer h5 {
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--light-blue);
}

.footer a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 2rem;
    padding-top: 1.5rem;
    text-align: center;
    color: #94A3B8;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Alert Messages */
.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.5rem;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
}

/* Problem Section with Images */
.problem-section-with-images {
    padding: 5rem 0;
}

.problem-item {
    margin-bottom: 4rem;
    display: flex;
    align-items: center;
    gap: 3rem;
}

.problem-item:nth-child(even) {
    flex-direction: row-reverse;
}

.problem-item-content {
    flex: 1;
}

.problem-item-image {
    flex: 1;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.problem-item-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

/* Solution Section with Two Columns */
.solution-two-columns {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.solution-content {
    flex: 1;
}

.solution-image {
    flex: 1;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Enhanced Advantages Cards */
.advantage-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 197, 253, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-blue);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.3);
}

.advantage-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    position: relative;
    z-index: 1;
    transition: transform 0.4s ease;
}

.advantage-card:hover .advantage-card-icon {
    transform: scale(1.1) rotate(5deg);
}

.advantage-card h3 {
    position: relative;
    z-index: 1;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-weight: 700;
}

.advantage-card p {
    position: relative;
    z-index: 1;
    color: var(--text-gray);
}

/* Logo in Header */
/* Header Logo - В 2 раза больше */
.logo-image-header {
    height: 80px;
    width: auto;
}

/* Footer Logo - В 4 раза больше чем было */
.logo-image-footer {
    height: 160px;
    width: auto;
}

/* Footer Description - Белый текст */
.footer-description {
    color: #ffffff !important;
    opacity: 0.9;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Problem Card with Icon (for Business/Industry pages) */
.problem-card-icon {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.07);
    transition: all 0.3s ease;
}

.problem-card-icon:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.problem-card-icon .icon-wrapper {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--light-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-blue);
}

.problem-card-icon .content-wrapper {
    flex: 1;
}

.problem-card-icon h4 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.problem-card-icon p {
    color: var(--text-gray);
    margin: 0;
}

/* Solution Alternating (Text-Image-Image-Text) */
.solution-alternating {
    display: flex;
    align-items: center;
    gap: 3rem;
    margin-bottom: 4rem;
}

.solution-alternating.reverse {
    flex-direction: row-reverse;
}

.solution-alternating-content {
    flex: 1;
}

.solution-alternating-content h4 {
    color: var(--primary-blue);
    font-weight: 700;
    margin-bottom: 1rem;
}

.solution-alternating-content p {
    color: var(--text-gray);
    line-height: 1.8;
}

.solution-alternating-image {
    flex: 1;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.solution-alternating-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.solution-alternating-image img:hover {
    transform: scale(1.05);
}

/* Responsive */
@media (max-width: 768px) {
    .problem-item {
        flex-direction: column !important;
    }
    
    .solution-two-columns {
        flex-direction: column;
    }
    
    .solution-alternating,
    .solution-alternating.reverse {
        flex-direction: column;
    }
    
    .problem-card-icon {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .advantage-card-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
}

/* Checkbox alignment fixes */
.form-check {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.form-check-input {
    margin-top: 0.25rem;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.form-check-label {
    line-height: 1.4;
    margin-bottom: 0;
}

/* Hide phone below 1450px and keep header compact */
@media (max-width: 1450px) {
    .navbar .header-phone { display: none !important; }
    /* не трогаем display у .navbar-collapse — им управляет Bootstrap */
}

/* На мобильных (ниже 992px) телефон всё же показываем */
@media (max-width: 991px) {
    .navbar .header-phone { display: block !important; }
}

/* Layout for screens between 992px and 1450px using CSS Grid */
@media (min-width: 992px) and (max-width: 1450px) {
    /* Состояние скрыто (Bootstrap): оставляем как есть */
    .navbar .navbar-collapse.collapse:not(.show) {
        display: none;
    }

    /* Состояние открыто: используем grid-раскладку без ломания Collapse */
    .navbar .navbar-collapse.collapse.show {
        display: grid;
        grid-template-areas:
            "nav button"
            "phone phone";
        grid-template-columns: 1fr auto;
        width: 100%;
        gap: 8px 16px;
        align-items: center;
    }

    .navbar .navbar-collapse.collapse.show .right-actions-wrapper {
        display: contents;
    }

    .navbar .navbar-collapse.collapse.show .navbar-nav {
        grid-area: nav;
        margin: 0 auto !important; /* Center nav links in their area */
    }

    .navbar .navbar-collapse.collapse.show .btn-primary-custom {
        grid-area: button;
    }

    .navbar .navbar-collapse.collapse.show .header-phone {
        grid-area: phone;
        text-align: center;
        padding-bottom: 4px; /* Control overall header height */
    }
}