:root {
    --bg: #f3efe7;
    --surface: rgba(255, 250, 243, 0.8);
    --surface-strong: #fffaf3;
    --ink: #1f2524;
    --muted: #5f6765;
    --line: rgba(31, 37, 36, 0.12);
    --accent: #b6462d;
    --accent-dark: #7a2516;
    --accent-gold: #c6932f;
    --deep: #163332;
    --shadow-lg: 0 22px 70px rgba(22, 51, 50, 0.18);
    --shadow-md: 0 14px 40px rgba(22, 51, 50, 0.12);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: 1180px;
    --transition: 220ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(circle at top left, rgba(198, 147, 47, 0.14), transparent 28%),
        radial-gradient(circle at top right, rgba(182, 70, 45, 0.12), transparent 22%),
        linear-gradient(180deg, #f7f0e5 0%, #f3efe7 100%);
    color: var(--ink);
    font-family: "Be Vietnam Pro", sans-serif;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

.container {
    width: min(var(--container), calc(100% - 32px));
    margin: 0 auto;
}

.page-shell {
    overflow: clip;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: 18px 0;
    backdrop-filter: blur(16px);
    background: rgba(243, 239, 231, 0.8);
    border-bottom: 1px solid rgba(31, 37, 36, 0.06);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.brand-text {
    display: grid;
    gap: 2px;
}

.brand-text strong {
    font-size: 1rem;
}

.brand-text small {
    color: var(--muted);
    font-size: 0.82rem;
}

.nav-panel {
    display: flex;
    align-items: center;
    gap: 22px;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 22px;
}

.nav-menu a {
    color: var(--muted);
    font-weight: 500;
    transition: color var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
    color: var(--accent);
}

.menu-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.65);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    background: var(--ink);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    padding: 0 22px;
    border: 0;
    border-radius: 999px;
    cursor: pointer;
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        background var(--transition),
        color var(--transition);
    font-weight: 700;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-2px);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(145deg, var(--accent) 0%, var(--accent-dark) 100%);
    box-shadow: 0 14px 30px rgba(182, 70, 45, 0.28);
}

.btn-secondary {
    color: var(--deep);
    background: rgba(255, 250, 243, 0.8);
    border: 1px solid rgba(22, 51, 50, 0.12);
}

.btn-ghost {
    color: var(--ink);
    background: transparent;
    border: 1px solid var(--line);
}

.hero {
    padding: 72px 0 36px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    gap: 28px;
    align-items: stretch;
}

.hero-copy,
.hero-card {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.hero-copy {
    padding: 48px;
    background:
        linear-gradient(180deg, rgba(20, 46, 45, 0.82), rgba(17, 30, 34, 0.9)),
        url("../images/bg-hero.jpg") center/cover no-repeat;
    color: #fff;
}

.hero-copy::after {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(198, 147, 47, 0.22);
    filter: blur(10px);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.82);
}

.section-heading .eyebrow,
.booking-copy .eyebrow {
    color: var(--accent);
}

.hero h1 {
    max-width: 11ch;
    font-size: clamp(2.6rem, 4vw, 4.7rem);
    line-height: 1.04;
    margin-bottom: 18px;
}

.hero-lead {
    max-width: 62ch;
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 34px;
}

.hero-metrics article {
    padding: 18px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(6px);
}

.hero-metrics strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1.1rem;
}

.hero-metrics span {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.92rem;
}

.hero-card {
    padding: 30px;
    align-self: end;
    background: linear-gradient(180deg, rgba(255, 250, 243, 0.92), rgba(250, 244, 233, 0.98));
}

.hero-card-badge {
    display: inline-flex;
    padding: 7px 12px;
    border-radius: 999px;
    margin-bottom: 18px;
    background: rgba(182, 70, 45, 0.1);
    color: var(--accent);
    font-size: 0.86rem;
    font-weight: 700;
}

.hero-card h2 {
    font-size: 1.85rem;
    line-height: 1.15;
    margin-bottom: 12px;
}

.hero-card p {
    color: var(--muted);
}

.hero-checklist {
    list-style: none;
    display: grid;
    gap: 12px;
    margin: 22px 0 28px;
}

.hero-checklist li {
    position: relative;
    padding-left: 26px;
    color: var(--ink);
}

.hero-checklist li::before {
    content: "•";
    position: absolute;
    left: 8px;
    color: var(--accent);
    font-size: 1.1rem;
}

.hero-card-contact {
    display: grid;
    gap: 6px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.hero-card-contact a {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--deep);
}

.hero-card-contact span {
    color: var(--muted);
}

.info-strip {
    padding: 14px 0 0;
}

.info-strip-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.info-strip-grid > div {
    padding: 20px 22px;
    border-radius: var(--radius-md);
    background: rgba(255, 250, 243, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: var(--shadow-md);
}

.info-label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 0.9rem;
}

.section {
    padding: 88px 0;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 34px;
}

.section-heading h2,
.booking-copy h2 {
    font-size: clamp(2rem, 3vw, 3.1rem);
    line-height: 1.12;
    margin-bottom: 12px;
}

.section-heading p,
.booking-copy p {
    color: var(--muted);
}

.services-grid,
.equipment-grid,
.portfolio-grid,
.map-layout {
    display: grid;
    gap: 20px;
}

.services-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card,
.equipment-card,
.portfolio-card,
.booking-form {
    border-radius: var(--radius-md);
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: var(--shadow-md);
}

.service-card {
    padding: 28px;
    backdrop-filter: blur(12px);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    color: #fff;
    font-size: 1.3rem;
}

.accent-red .service-icon {
    background: linear-gradient(145deg, #d25b42, #b6462d);
}

.accent-dark .service-icon {
    background: linear-gradient(145deg, #2b4e4c, #163332);
}

.accent-gold .service-icon {
    background: linear-gradient(145deg, #d9b14f, #b68019);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.service-card p {
    color: var(--muted);
}

.service-card ul {
    list-style: none;
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.service-card li {
    position: relative;
    padding-left: 20px;
}

.service-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 11px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
}

.equipment-card i {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: rgba(22, 51, 50, 0.08);
    color: var(--deep);
}

.equipment-card h3 {
    margin-bottom: 8px;
}

.equipment-card p,
.portfolio-copy p {
    color: var(--muted);
}

.equipment-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.equipment-card {
    padding: 24px;
}

.equipment-card i {
    margin-bottom: 18px;
    font-size: 1.3rem;
}

.portfolio-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.map-layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: stretch;
}

.map-card {
    overflow: hidden;
    min-height: 420px;
    border-radius: var(--radius-lg);
    background: rgba(255, 250, 243, 0.78);
    border: 1px solid rgba(255, 255, 255, 0.72);
    box-shadow: var(--shadow-lg);
}

.map-card iframe {
    width: 100%;
    height: 100%;
    min-height: 420px;
    border: 0;
    filter: saturate(0.9) contrast(1.02);
}

.map-copy {
    align-self: center;
}

.portfolio-card {
    overflow: hidden;
}

.portfolio-card img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.portfolio-copy {
    padding: 20px 20px 24px;
}

.portfolio-copy span {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.portfolio-copy h3 {
    margin-bottom: 8px;
    font-size: 1.28rem;
}

.booking-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 24px;
    align-items: start;
}

.booking-points {
    display: grid;
    gap: 14px;
    margin-top: 24px;
}

.booking-points > div {
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: rgba(255, 250, 243, 0.66);
    border: 1px solid rgba(255, 255, 255, 0.65);
    box-shadow: var(--shadow-md);
}

.booking-points strong {
    display: block;
    margin-bottom: 4px;
}

.booking-points span {
    color: var(--muted);
}

.booking-form {
    padding: 28px;
    background: rgba(255, 251, 246, 0.94);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.form-group {
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
}

.form-group label {
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
    color: var(--ink);
    transition:
        border-color var(--transition),
        box-shadow var(--transition);
    appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(182, 70, 45, 0.46);
    box-shadow: 0 0 0 4px rgba(182, 70, 45, 0.12);
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.form-message {
    display: none;
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 16px;
    font-weight: 600;
}

.form-message.success {
    display: block;
    background: rgba(36, 119, 83, 0.12);
    color: #1b6d4b;
    border: 1px solid rgba(36, 119, 83, 0.18);
}

.form-message.error {
    display: block;
    background: rgba(182, 70, 45, 0.1);
    color: var(--accent-dark);
    border: 1px solid rgba(182, 70, 45, 0.18);
}

.site-footer {
    padding: 26px 0 36px;
    background: #132221;
    color: rgba(255, 255, 255, 0.92);
}

.floating-contact {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 30;
    display: grid;
    gap: 10px;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.floating-contact a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 52px;
    padding: 0 18px;
    border-radius: 999px;
    color: #fff;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.floating-contact-call {
    background: linear-gradient(145deg, #d25b42, #b6462d);
}

.floating-contact-zalo {
    background: linear-gradient(145deg, #245f92, #144978);
}

.floating-contact-facebook {
    background: linear-gradient(145deg, #2b63d9, #1c46a3);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 24px;
    padding: 36px 0 26px;
}

.footer-brand p,
.footer-column p {
    color: rgba(255, 255, 255, 0.68);
}

.footer-column {
    display: grid;
    align-content: start;
    gap: 10px;
}

.footer-column h3,
.footer-brand h2 {
    margin-bottom: 6px;
}

.footer-column a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.92);
}

.footer-column a:hover {
    color: #ffd089;
}

.footer-bottom {
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 1080px) {
    .hero-grid,
    .booking-layout,
    .equipment-grid,
    .portfolio-grid,
    .map-layout,
    .services-grid,
    .footer-grid,
    .info-strip-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-copy {
        padding: 38px;
    }

    .hero-card {
        align-self: stretch;
    }
}

@media (max-width: 820px) {
    .site-header {
        padding: 12px 0;
    }

    .menu-toggle {
        display: inline-block;
        flex-shrink: 0;
    }

    .nav-panel {
        position: absolute;
        top: calc(100% + 10px);
        right: 16px;
        left: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 18px;
        border-radius: 22px;
        background: rgba(255, 250, 243, 0.98);
        border: 1px solid rgba(31, 37, 36, 0.08);
        box-shadow: var(--shadow-lg);
        max-height: calc(100vh - 110px);
        overflow: auto;
    }

    .nav-panel.is-open {
        display: flex;
    }

    .nav-menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .nav-cta {
        width: 100%;
    }

    .hero-grid,
    .booking-layout,
    .equipment-grid,
    .portfolio-grid,
    .map-layout,
    .services-grid,
    .footer-grid,
    .info-strip-grid,
    .form-row {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 26px;
    }

    .hero-copy,
    .hero-card,
    .booking-form {
        padding: 24px;
    }

    .hero h1 {
        max-width: none;
        font-size: clamp(2rem, 9vw, 3rem);
    }

    .hero-lead {
        font-size: 1rem;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .map-card,
    .map-card iframe {
        min-height: 320px;
    }
}

@media (max-width: 560px) {
    body {
        padding-bottom: calc(92px + env(safe-area-inset-bottom, 0px));
    }

    .container {
        width: min(var(--container), calc(100% - 20px));
    }

    .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 14px;
    }

    .brand-text small {
        display: none;
    }

    .section {
        padding: 66px 0;
    }

    .site-header {
        top: 0;
        padding-top: calc(10px + env(safe-area-inset-top, 0px));
    }

    .navbar {
        gap: 12px;
    }

    .btn,
    .form-actions button {
        width: 100%;
    }

    .hero-actions,
    .form-actions {
        flex-direction: column;
    }

    .hero-copy,
    .hero-card,
    .booking-form {
        border-radius: 22px;
        padding: 20px;
    }

    .hero-copy::after {
        width: 140px;
        height: 140px;
        right: -40px;
        bottom: -40px;
    }

    .hero-metrics {
        gap: 10px;
        margin-top: 24px;
    }

    .hero-metrics article {
        padding: 14px 16px;
    }

    .info-strip-grid > div,
    .service-card,
    .equipment-card,
    .booking-points > div {
        padding: 18px;
    }

    .section-heading {
        margin-bottom: 24px;
    }

    .section-heading h2,
    .booking-copy h2 {
        font-size: clamp(1.65rem, 7vw, 2.2rem);
    }

    .section-heading p,
    .booking-copy p,
    .service-card p,
    .portfolio-copy p,
    .equipment-card p {
        font-size: 0.96rem;
    }

    .map-card,
    .map-card iframe {
        min-height: 260px;
        border-radius: 22px;
    }

    .form-group {
        margin-bottom: 14px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 15px 16px;
        font-size: 16px;
    }

    .floating-contact {
        left: 10px;
        right: 10px;
        bottom: calc(10px + env(safe-area-inset-bottom, 0px));
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
    }

    .floating-contact a {
        justify-content: center;
        min-width: 0;
        min-height: 56px;
        padding: 0 10px;
        border-radius: 18px;
        font-size: 0.95rem;
    }

    .floating-contact a span {
        white-space: nowrap;
    }

    .footer-grid {
        gap: 18px;
        padding: 28px 0 22px;
    }
}