/* Explain: Styles for the website's header, navigation, hero, sections, CTA, and footer. */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    box-shadow: 0 8px 26px -22px rgba(6, 62, 107, 0.9);
}

.topbar {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary-color));
    color: #fff;
    font-size: 0.82rem;
}

.topbar__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem 1rem;
    padding-block: 0.4rem;
}

.topbar__hotline {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 700;
}

.topbar__hotline strong {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    letter-spacing: 0.06em;
    color: #ffd89a;
}

.topbar__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.3rem 0.9rem;
}

.topbar__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding-block: 0.1rem;
    transition: color 0.2s ease;
}

.topbar__link:hover {
    color: #ffd89a;
}

.topbar__link--wa {
    color: #b8ffd2;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 0.7rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-width: 0;
}

.brand__mark {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 2.85rem;
    height: 2.85rem;
    border-radius: 0.85rem;
    background: linear-gradient(140deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    font-size: 1.2rem;
    box-shadow: var(--shadow-soft);
}

.brand__name {
    display: block;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.95rem;
    line-height: 1.3;
    color: var(--text-color);
}

.brand__sub {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.3;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 0.15rem;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 0.75rem;
    border-radius: 0.65rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.92rem;
    transition: background 0.2s ease, color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.is-active {
    background: var(--surface-color);
    color: var(--primary-color);
}

.nav-cta {
    display: none;
}

.menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.85rem;
    height: 2.85rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--primary-color);
    font-size: 1.1rem;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 70;
}

.mobile-menu.is-open {
    display: block;
}

.mobile-menu__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(6, 62, 107, 0.55);
}

.mobile-menu__panel {
    position: absolute;
    top: 0;
    inset-inline-end: 0;
    height: 100%;
    width: min(86vw, 20rem);
    background: #fff;
    padding: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    overflow-y: auto;
    box-shadow: -18px 0 40px -24px rgba(0, 0, 0, 0.6);
}

.mobile-menu__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.mobile-menu__close {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 0.7rem;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--text-color);
    font-size: 1.05rem;
    cursor: pointer;
}

.mobile-menu__links {
    display: grid;
    gap: 0.2rem;
    margin-bottom: 1rem;
}

.mobile-menu__links a {
    display: block;
    padding: 0.8rem 0.9rem;
    border-radius: 0.7rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.98rem;
}

.mobile-menu__links a:hover,
.mobile-menu__links a.is-active {
    background: var(--surface-color);
    color: var(--primary-color);
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }

    .nav-cta {
        display: inline-flex;
    }

    .menu-toggle {
        display: none;
    }

    .brand__name {
        font-size: 1.05rem;
    }
}

.hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(165deg, #eaf3fb 0%, #ffffff 52%, #f4f9fd 100%);
    padding-block: 2.25rem 2.75rem;
}

.hero__glow {
    position: absolute;
    inset-inline-end: -7rem;
    top: -7rem;
    width: 26rem;
    height: 26rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 95, 165, 0.18), rgba(11, 95, 165, 0) 70%);
    pointer-events: none;
}

.hero__inner {
    position: relative;
    display: grid;
    gap: 1.75rem;
    align-items: center;
}

.hero__text h1 {
    font-size: 1.4rem;
    margin-block: 0.65rem 0.55rem;
}

.hero__sub {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 36rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.25rem;
}

.hero__actions .btn-base {
    flex: 1 1 13rem;
}

.hero__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    margin-top: 1.25rem;
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 700;
}

.hero__list li {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.hero__list i {
    color: var(--secondary-color);
}

@media (min-width: 1024px) {
    .hero {
        padding-block: 3.5rem 4rem;
    }

    .hero__inner {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 3rem;
    }

    .hero__text h1 {
        font-size: 1.9rem;
    }

    .hero__actions .btn-base {
        flex: 0 0 auto;
    }
}

.section {
    padding-block: 2.5rem;
}

.section--tight {
    padding-block: 1.75rem;
}

.section--alt {
    background: var(--surface-color);
}

.section-head {
    max-width: 44rem;
    margin-inline: auto;
    text-align: center;
    margin-bottom: 1.85rem;
}

.section-head h2 {
    font-size: 1.6rem;
    margin-block: 0.7rem 0.55rem;
}

.section-head p {
    color: var(--text-muted);
    font-size: 0.97rem;
}

@media (min-width: 768px) {
    .section {
        padding-block: 3.5rem;
    }

    .section-head h2 {
        font-size: 2.05rem;
    }
}

.cta-band {
    position: relative;
    overflow: hidden;
    border-radius: 1.5rem;
    padding: 2rem 1.35rem;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color) 60%, #0f76c4);
    color: #fff;
    box-shadow: var(--shadow-strong);
    text-align: center;
}

.cta-band h2 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.cta-band p {
    color: #d6e9f8;
    font-size: 0.97rem;
    max-width: 38rem;
    margin-inline: auto;
}

.cta-band__hotline {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    margin-block: 1rem;
    padding: 0.5rem 1.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px dashed rgba(255, 255, 255, 0.4);
}

.cta-band__hotline span {
    font-size: 0.78rem;
    color: #ffd89a;
    font-weight: 700;
}

.cta-band__hotline strong {
    font-family: var(--font-heading);
    font-size: 1.9rem;
    letter-spacing: 0.08em;
    color: #fff;
}

.cta-band__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.cta-band__actions .btn-base {
    flex: 1 1 13rem;
}

@media (min-width: 768px) {
    .cta-band {
        padding: 2.75rem 2rem;
    }

    .cta-band__actions .btn-base {
        flex: 0 0 auto;
    }
}

.site-footer {
    background: linear-gradient(180deg, #072a47, #051c31);
    color: #cfe2f2;
    padding-top: 2.5rem;
    font-size: 0.92rem;
}

.site-footer__grid {
    display: grid;
    gap: 1.85rem;
    padding-bottom: 2rem;
}

.site-footer__text {
    color: #9fbcd6;
    font-size: 0.88rem;
    margin-top: 0.75rem;
    max-width: 26rem;
}

.site-footer .brand__name {
    color: #fff;
}

.site-footer .brand__sub {
    color: #9fbcd6;
}

.site-footer__hotline {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1rem;
    padding: 0.45rem 1rem;
    border-radius: 0.8rem;
    background: rgba(249, 115, 22, 0.16);
    border: 1px solid rgba(249, 115, 22, 0.5);
    color: #ffd89a;
    font-weight: 700;
}

.site-footer__hotline strong {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    letter-spacing: 0.06em;
    color: #fff;
}

.site-footer__title {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.site-footer__links {
    display: grid;
    gap: 0.5rem;
}

.site-footer__links a {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: #cfe2f2;
    transition: color 0.2s ease;
}

.site-footer__links a:hover {
    color: #ffd89a;
}

.site-footer__links i {
    width: 1rem;
    text-align: center;
    color: #7fb2d8;
}

.site-footer__note {
    color: #9fbcd6;
    font-size: 0.82rem;
    margin-top: 0.8rem;
}

.site-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-block: 1rem;
    font-size: 0.8rem;
    color: #9fbcd6;
    text-align: center;
}

@media (min-width: 768px) {
    .site-footer__grid {
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 2rem;
    }
}