.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    min-height: 76px;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: #ffffff;
    border-bottom: 1px solid #dde3e8;
}

.app-brand {
    display: inline-flex;
    flex-direction: column;
}

.app-brand__title {
    font-size: 21px;
    font-weight: 700;
    color: #17324d;
}

.app-brand__subtitle {
    margin-top: 2px;
    font-size: 13px;
    color: #6b7785;
}

.app-navigation {
    min-height: 52px;
    padding: 0 32px;
    display: flex;
    align-items: stretch;
    gap: 8px;
    overflow-x: auto;
    background: #17324d;
}

.app-navigation__link {
    padding: 0 16px;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    border-bottom: 3px solid transparent;
}

    .app-navigation__link:hover {
        background: rgba(255, 255, 255, 0.08);
        border-bottom-color: rgba(255, 255, 255, 0.7);
    }

.app-main {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 40px 32px 56px;
    flex: 1;
}

.app-footer {
    min-height: 64px;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    font-size: 13px;
    color: #6b7785;
    background: #ffffff;
    border-top: 1px solid #dde3e8;
}

.page-header {
    margin-bottom: 40px;
}

.page-header__eyebrow {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #5e7184;
}

.page-header__title {
    margin-bottom: 12px;
    font-size: 38px;
    line-height: 1.15;
    color: #17324d;
}

.page-header__description {
    max-width: 760px;
    margin-bottom: 0;
    font-size: 17px;
    color: #5e6b78;
}

@media (max-width: 768px) {
    .app-header {
        padding: 16px 20px;
    }

    .app-navigation {
        padding: 0 12px;
    }

    .app-main {
        padding: 28px 20px 40px;
    }

    .app-footer {
        padding: 16px 20px;
        flex-direction: column;
        align-items: flex-start;
    }

    .page-header__title {
        font-size: 30px;
    }
}