/* style.css — ФИНАЛЬНАЯ ВЕРСИЯ */
:root {
    --primary: #2563EB;
    --primary-dark: #1E40AF;
    --primary-light: #60A5FA;
    --accent: #FACC15;
    --accent-dark: #CA8A04;
    --bg-light: #F9FAFB;
    --bg-dark: #111827;
    --text-dark: #1F2937;
    --text-soft: #4B5563;
    --text-light: #6B7280;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --border-radius: 16px;
    --border-radius-sm: 8px;
}

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

html, body {
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

/* КОНТЕЙНЕР ТОЛЬКО ДЛЯ КОНТЕНТА */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
    box-sizing: border-box;
}

/* ===== ШАПКА ===== */
.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
    box-sizing: border-box;
}

.logo__link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo__icon {
    transition: transform 0.2s;
}

.logo__link:hover .logo__icon {
    transform: scale(1.05);
}

.logo__text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: -0.02em;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav__link {
    text-decoration: none;
    color: var(--text-soft);
    font-weight: 500;
    font-size: 1rem;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    transition: 0.15s;
}

.nav__link:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.nav__link--active {
    color: var(--primary-dark);
    border-bottom-color: var(--primary);
    font-weight: 600;
}

/* ===== HERO — АБСОЛЮТНОЕ РАСТЯГИВАНИЕ ===== */
.hero {
    background: linear-gradient(to bottom, #FFFFFF, #F5F9FF);
    border-bottom: 1px solid var(--border-color);
    padding: 64px 0 72px 0;
    width: 100%;
    position: relative;
    left: 0;
    right: 0;
    margin: 0;
}

.hero__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    text-align: left;
    width: 100%;
    box-sizing: border-box;
}

.hero__title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--bg-dark);
    margin-bottom: 32px;
    max-width: 1000px;
}

.hero__content {
    max-width: 900px;
}

.hero__text {
    font-size: 1.2rem;
    color: var(--text-soft);
    margin-bottom: 20px;
}

/* ===== КНОПКИ ===== */
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.2s;
    font-size: 1.05rem;
    border: 2px solid transparent;
}

.btn--primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 8px 16px -6px rgba(37,99,235,0.25);
    margin-top: 8px;
}

.btn--primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -8px rgba(37,99,235,0.4);
}

.btn--secondary {
    background-color: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn--secondary:hover {
    background-color: var(--primary);
    color: white;
}

/* ===== СЕКЦИИ ===== */
.section {
    padding: 80px 0;
    border-bottom: 1px solid #F0F2F5;
    width: 100%;
}

.section:last-of-type {
    border-bottom: none;
}

.section__title {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--bg-dark);
    margin-bottom: 48px;
    position: relative;
}

.section__title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
}

/* ===== СЕТКА ===== */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}

.content-text-block {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.content-paragraph {
    font-size: 1.05rem;
    color: var(--text-soft);
    line-height: 1.7;
}

.features-list-block {
    background-color: var(--bg-light);
    padding: 32px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.features-list__title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--primary-dark);
}

/* ===== СПИСКИ ===== */
.list {
    list-style: none;
}

.list--check li {
    padding-left: 32px;
    margin-bottom: 16px;
    position: relative;
    font-size: 1rem;
    color: var(--text-soft);
}

.list--check li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 3px;
    width: 20px;
    height: 20px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%232563EB'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z'/%3E%3C/svg%3E");
    background-size: contain;
}

.list--check strong {
    color: var(--text-dark);
}

.link-more {
    display: inline-block;
    margin-top: 16px;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: 0.15s;
}

.link-more:hover {
    border-bottom-color: var(--primary);
}

/* ===== ПРЕИМУЩЕСТВА ===== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.advantage-card {
    background: var(--white);
    padding: 28px 24px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: 0.2s;
    display: flex;
    flex-direction: column;
}

.advantage-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.advantage-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--bg-dark);
}

.advantage-card p {
    color: var(--text-soft);
    font-size: 0.95rem;
    line-height: 1.6;
    flex: 1;
}

.why-mobile-footer {
    margin-top: 16px;
    padding: 20px 28px;
    background: #EFF6FF;
    border-left: 6px solid var(--primary);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    color: var(--primary-dark);
}

/* ===== ССЫЛКИ ===== */
.links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.learn-link {
    display: block;
    padding: 28px 28px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-dark);
    transition: 0.2s;
    line-height: 1.6;
}

.learn-link strong {
    font-size: 1.15rem;
    color: var(--bg-dark);
    margin-bottom: 6px;
    display: block;
}

.learn-link:hover {
    border-color: var(--primary);
    background: #F5F9FF;
    transform: scale(1.01);
    box-shadow: var(--shadow-md);
}

/* ===== ПОДВАЛ ===== */
.footer {
    background-color: var(--bg-dark);
    color: #D1D5DB;
    padding: 48px 0;
    margin-top: 40px;
    width: 100%;
}

.footer__container {
    display: flex;
    justify-content: center;
    text-align: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
    box-sizing: border-box;
}

.footer__info p {
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: #9CA3AF;
}

.footer__info a:hover {
    text-decoration: underline !important;
    color: white !important;
}

/* ===== АДАПТАЦИЯ ===== */
@media (max-width: 1100px) {
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .hero__title { font-size: 2.6rem; }
}

@media (max-width: 900px) {
    .content-grid { grid-template-columns: 1fr; gap: 40px; }
    .header__container { flex-direction: column; height: auto; padding: 20px 40px; }
    .nav__list { flex-wrap: wrap; justify-content: center; gap: 20px; }
    .hero { padding: 48px 0; }
    .hero__title { font-size: 2.2rem; }
    .section__title { font-size: 2rem; }
}

@media (max-width: 640px) {
    .container { padding: 0 24px; }
    .header__container { padding: 16px 24px; }
    .hero__container { padding: 0 24px; }
    .hero__title { font-size: 1.9rem; }
    .advantages-grid { grid-template-columns: 1fr; }
    .links-grid { grid-template-columns: 1fr; }
    .features-list-block { padding: 24px; }
    .section { padding: 56px 0; }
    .footer__container { padding: 0 24px; }
}