/* Шапка */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--border-color);
}

.navbar nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar nav a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.navbar nav a:hover {
    color: var(--primary-color);
}

/* Главный экран (Hero) */
.hero {
    text-align: center;
    padding: 80px 20px 60px;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
    color: var(--text-dark);
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* Сетка преимуществ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1100px;
    margin: 40px auto 80px;
    padding: 0 20px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Персональная лента для авторизованных */
.feed-container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 20px;
}

.feed-header {
    margin-bottom: 24px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.feed-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tag-badge {
    display: inline-block;
    align-self: flex-start;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.feed-card-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}