/* --- VARIABLES --- */
:root {
    --brand-main: #3E5C54;
    --brand-light: #E9F0EE;
    --brand-bg: #FBFBFA;
    --text-dark: #242928;
    --text-muted: #64706D;
    --white: #FFFFFF;
    --border: #E2E9E7;
    --radius-card: 24px;
    --radius-btn: 14px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px rgba(62, 92, 84, 0.08);
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-dark);
    background-color: var(--brand-bg);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- HEADER --- */
.header {
    position: sticky;
    top: 0;
    background: rgba(251, 251, 250, 0.85);
    backdrop-filter: blur(15px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--brand-main);
    text-decoration: none;
    z-index: 2002;
}

.nav-toggle {
    display: none;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: var(--transition);
}

.nav-links a.active-link {
    color: var(--brand-main);
}

.burger {
    display: none;
    cursor: pointer;
    z-index: 2002;
    padding: 5px;
}

.burger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--brand-main);
    margin: 6px 0;
    transition: var(--transition);
}

/* --- GRID & DESIGN --- */
.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
    padding: 60px 0;
}

/* Базовая карточка — без sticky по умолчанию */
.bento-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: relative;
}

/* Включаем sticky только для десктопа (выше 900px) */
@media (min-width: 901px) {
    .sticky-desktop {
        position: sticky !important;
        top: 120px;
        z-index: 10;
    }
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--border);
    background: var(--white);
    margin: 0 8px 8px 0;
}

/* --- MOBILE FIXES --- */
@media (max-width: 900px) {
    .hero-grid {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    /* На мобильных всё статично, никакого наложения */
    .bento-card {
        position: static !important;
        width: 100% !important;
        padding: 30px 20px;
    }

    .burger {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--brand-bg);
        z-index: 2001;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.4s ease;
    }

    .nav-toggle:checked~.nav-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
    }

    .nav-links a {
        font-size: 1.8rem;
    }

    .nav-toggle:checked~.burger span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle:checked~.burger span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle:checked~.burger span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

/* --- BUTTONS --- */
.btn {
    padding: 16px 32px;
    border-radius: var(--radius-btn);
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--brand-main);
    color: var(--white);
}

.footer {
    padding: 40px 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    text-align: center;
}