/* Цветовая схема: глубокий синий, голубой и лазурный */
:root {
    --bg-main: #0B192C;       /* Глубокий темно-синий фон */
    --bg-section: #1A365D;    /* Синий фон секций */
    --text-color: #E2E8F0;    /* Светло-голубой/серый для читаемости текста */
    --text-highlight: #00B4D8; /* Яркий голубой для заголовков */
    --accent-color: #0077B6;  /* Синий акцент для элементов */
    --button-hover: #03045E;  /* Темно-синий при наведении */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-color);
    line-height: 1.6;
}

/* Выравнивание текстов по ширине во всех блоках */
p, li, .step-text {
    text-align: justify;
}

/* Навигация и бургер-меню */
header {
    background-color: #0A1423;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.logo {
    position: absolute;
    left: 20px;
    font-size: 24px;
    font-weight: bold;
    color: #90E0EF;
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 20px;
    list-style: none;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #90E0EF;
}

.burger {
    display: none;
    cursor: pointer;
    font-size: 26px;
    color: #90E0EF;
    position: absolute;
    right: 20px;
}

/* Промо-строки */
.promo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 30px 10px;
    background: linear-gradient(135deg, #023E8A, #0096C7);
    box-shadow: inset 0 0 20px rgba(0,0,0,0.3);
}

.promo-banner {
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    padding: 15px 25px;
    border-radius: 8px;
    width: 90%;
    max-width: 800px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.promo-1 { background: linear-gradient(90deg, #FF9A9E, #FECFEF); color: #03045E; }
.promo-2 { background: linear-gradient(90deg, #48CAE4, #90E0EF); color: #03045E; }
.promo-3 { background: linear-gradient(90deg, #F2C94C, #F2994A); color: #03045E; }

/* Контентные секции */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

section {
    background-color: var(--bg-section);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    border: 1px solid rgba(0, 180, 216, 0.2);
}

h2 {
    text-align: center;
    color: var(--text-highlight);
    margin-bottom: 20px;
    font-size: 28px;
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    padding-bottom: 5px;
}

.section-header {
    text-align: center;
    margin-bottom: 20px;
}

.icon {
    font-size: 32px;
    margin-right: 10px;
    vertical-align: middle;
}

/* Шаги */
.steps {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.step {
    background-color: #2B4C7E;
    padding: 15px;
    border-left: 5px solid #00B4D8;
    border-radius: 4px;
}

/* Кнопки действий */
.action-btn {
    display: block;
    width: fit-content;
    margin: 25px auto 0;
    background: linear-gradient(135deg, #0077B6, #00B4D8);
    color: #FFFFFF;
    padding: 14px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 17px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.4);
    transition: all 0.3s ease;
}

.action-btn:hover {
    background: linear-gradient(135deg, #0096C7, #48CAE4);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.7);
    color: #03045E;
}

/* Стилизация блока "Зеркало Sharavoz TV" */
.mirror-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
}

.mirror-feature-item {
    background-color: #234375;
    padding: 18px;
    border-radius: 8px;
    border-left: 5px solid #00B4D8;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.mirror-btn-container {
    text-align: center;
    margin-top: 25px;
}

.mirror-btn {
    display: inline-block;
    background: linear-gradient(45deg, #0077B6, #00B4D8);
    color: #FFFFFF;
    font-size: 20px;
    font-weight: bold;
    padding: 16px 42px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 0 15px rgba(0, 180, 216, 0.6);
    transition: transform 0.3s, box-shadow 0.3s;
    animation: pulse 2s infinite;
}

.mirror-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(0, 180, 216, 0.9);
}

@keyframes pulse {
    0% { box-shadow: 0 0 10px rgba(0, 180, 216, 0.5); }
    50% { box-shadow: 0 0 25px rgba(0, 180, 216, 0.9); }
    100% { box-shadow: 0 0 10px rgba(0, 180, 216, 0.5); }
}

/* Стилизация красочной карточки "Тариф Sharavoz TV" */
.tariff-card {
    position: relative;
    max-width: 650px;
    margin: 30px auto 10px;
    background: linear-gradient(145deg, #0D2847, #1A3E6E);
    border: 2px solid #00B4D8;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 180, 216, 0.25);
    text-align: center;
    overflow: hidden;
}

.tariff-badge {
    position: absolute;
    top: 20px;
    right: -35px;
    background: linear-gradient(45deg, #FF9A9E, #FECFEF);
    color: #03045E;
    font-size: 11px;
    font-weight: 800;
    padding: 6px 40px;
    transform: rotate(45deg);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.tariff-title {
    font-size: 24px;
    color: #90E0EF;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tariff-price-box {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 15px 0 20px;
}

.price-currency {
    font-size: 32px;
    font-weight: 900;
    color: #48CAE4;
    vertical-align: top;
    margin-right: 4px;
}

.price-value {
    font-size: 72px;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(180deg, #FFFFFF, #90E0EF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(0, 180, 216, 0.5));
}

.price-period {
    font-size: 18px;
    color: #E2E8F0;
    margin-left: 8px;
    align-self: flex-end;
    margin-bottom: 12px;
}

.tariff-bonus-banner {
    display: inline-block;
    background: rgba(0, 180, 216, 0.15);
    border: 1px solid rgba(0, 180, 216, 0.4);
    color: #90E0EF;
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 15px;
    margin-bottom: 25px;
}

.tariff-features {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.tariff-features li {
    background: rgba(10, 20, 35, 0.4);
    margin-bottom: 10px;
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 15px;
    display: flex;
    align-items: center;
}

.check-icon {
    color: #48CAE4;
    font-weight: bold;
    font-size: 18px;
    margin-right: 12px;
}

.tariff-btn {
    font-size: 19px;
    padding: 16px 40px;
    background: linear-gradient(135deg, #0096C7, #00B4D8);
    box-shadow: 0 0 20px rgba(0, 180, 216, 0.6);
}

.tariff-btn:hover {
    background: linear-gradient(135deg, #48CAE4, #90E0EF);
}

/* Раздел ТВ Приставки */
.tv-box-list {
    list-style: none;
    margin: 20px 0;
}

.tv-box-list li {
    background-color: #2B4C7E;
    margin-bottom: 10px;
    padding: 15px;
    border-radius: 8px;
    position: relative;
    padding-left: 45px;
}

.tv-box-list li::before {
    content: "✓";
    color: #48CAE4;
    font-size: 24px;
    position: absolute;
    left: 15px;
    top: 10px;
    font-weight: bold;
}

/* Социальные сети */
footer {
    background-color: #0A1423;
    padding: 30px 20px;
    text-align: center;
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-btn {
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    color: #FFFFFF;
    font-weight: bold;
    transition: opacity 0.3s;
}

.social-btn:hover { opacity: 0.8; }
.vk { background-color: #4A76A8; }
.tg { background-color: #0088cc; }
.ok { background-color: #F2720C; }

/* Адаптивность */
@media (max-width: 850px) {
    header {
        justify-content: space-between;
    }
    .logo {
        position: relative;
        left: 0;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: #0A1423;
        position: absolute;
        top: 60px;
        left: 0;
        padding: 15px 0;
        text-align: center;
        gap: 15px;
    }
    .nav-links.active { display: flex; }
    .burger { display: block; position: relative; right: 0; }
    .promo-banner { font-size: 14px; padding: 10px; }
    .tariff-card { padding: 30px 18px; }
    .price-value { font-size: 56px; }
}