:root {
    --red: #d90429;
    --red-dark: #b60324;
    --cyan: #00a8c8;
    --navy: #071a2b;
    --navy-soft: #10283d;
    --ink: #122235;
    --muted: #64748b;
    --line: #dfe7ef;
    --surface: #f3f7fa;
    --white: #ffffff;
    --shadow: 0 22px 60px rgba(4, 24, 42, .16);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 78px; }
body { font-family: "Inter", sans-serif; color: var(--ink); background: var(--white); line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; }
.container { width: min(1180px, 100%); margin: 0 auto; padding: 0 24px; }

.header { position: fixed; inset: 0 0 auto; z-index: 1000; background: rgba(7, 26, 43, .92); border-bottom: 1px solid rgba(255, 255, 255, .08); backdrop-filter: blur(16px); }
.header-inner { height: 78px; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand img { width: 52px; height: 52px; object-fit: contain; border-radius: 9px; }
.brand span { display: grid; line-height: 1.12; }
.brand strong { color: #fff; font: 800 14px "Montserrat", sans-serif; letter-spacing: .7px; }
.brand small { margin-top: 4px; color: #69d0e3; font-size: 10px; font-weight: 800; letter-spacing: 2px; }
.nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav a { position: relative; color: rgba(255, 255, 255, .72); padding: 28px 0 25px; font-size: 14px; font-weight: 600; transition: .2s ease; }
.nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 19px; height: 2px; background: var(--red); transition: .25s ease; }
.nav a:hover { color: #fff; }
.nav a:hover::after { right: 0; }
.header-phone { display: flex; align-items: center; gap: 10px; padding-left: 10px; color: #fff; }
.phone-icon { display: grid; place-items: center; width: 40px; height: 40px; color: #fff; background: var(--red); border-radius: 50%; box-shadow: 0 0 0 6px rgba(217, 4, 41, .14); }
.header-phone > span:last-child { display: grid; line-height: 1.15; }
.header-phone small { color: #8ea4b7; font-size: 10px; text-transform: uppercase; letter-spacing: .7px; }
.header-phone strong { margin-top: 4px; font-size: 14px; }
.menu-toggle { display: none; margin-left: auto; color: #fff; background: transparent; border: 0; font-size: 25px; }
.mobile-menu { position: fixed; z-index: 1100; inset: 0 0 0 auto; width: min(330px, 100%); padding: 38px 32px; display: flex; flex-direction: column; gap: 22px; color: #fff; background: var(--navy); transform: translateX(100%); transition: .3s ease; box-shadow: -20px 0 50px rgba(0, 0, 0, .24); }
.mobile-menu.open { transform: none; }
.mobile-menu a { font-weight: 700; }
.menu-close { align-self: flex-end; margin-bottom: 8px; color: #fff; background: transparent; border: 0; font-size: 28px; }
.mobile-call { display: flex; justify-content: center; align-items: center; gap: 9px; margin-top: 8px; padding: 13px; background: var(--red); border-radius: 10px; }

.hero { position: relative; min-height: 790px; padding: 128px 0 70px; display: flex; align-items: center; color: #fff; background: url("assets/halong_connect_hero.png") center 42% / cover no-repeat; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(4, 20, 34, .97) 0%, rgba(4, 20, 34, .88) 43%, rgba(4, 20, 34, .46) 100%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 150px; background: linear-gradient(transparent, rgba(7, 26, 43, .34)); pointer-events: none; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(480px, .88fr); gap: 72px; align-items: center; }
.hero-copy { max-width: 620px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px; padding: 7px 12px; color: #85dced; background: rgba(0, 168, 200, .12); border: 1px solid rgba(105, 208, 227, .25); border-radius: 6px; font-size: 11px; font-weight: 800; letter-spacing: 1.8px; }
.hero h1 { font: 800 clamp(44px, 5.15vw, 68px) / 1.06 "Montserrat", sans-serif; letter-spacing: -2.5px; }
.hero h1 span { color: #fff; background: linear-gradient(90deg, #ff3157, #ff718d); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-lead { max-width: 580px; margin-top: 20px; color: #c5d3df; font-size: 17px; }
.hero-routes { max-width: 585px; margin-top: 27px; border-top: 1px solid rgba(255, 255, 255, .13); }
.hero-routes > div { display: grid; grid-template-columns: 28px minmax(88px, 1fr) 20px minmax(90px, 1fr) auto; gap: 8px; align-items: center; min-height: 46px; border-bottom: 1px solid rgba(255, 255, 255, .13); font-size: 13px; }
.hero-routes > div > span { color: #587187; font-size: 10px; font-weight: 800; }
.hero-routes i { color: #5a7489; font-size: 11px; }
.hero-routes b { color: #fff; font-size: 12px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 0 22px; border-radius: 8px; font-size: 14px; font-weight: 800; transition: .2s ease; }
.button-primary { color: #fff; background: var(--red); box-shadow: 0 10px 28px rgba(217, 4, 41, .28); }
.button-primary:hover { background: var(--red-dark); transform: translateY(-2px); }
.button-glass { color: #fff; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18); }
.button-glass:hover { background: rgba(255, 255, 255, .14); }

.booking-card { padding: 29px; color: var(--ink); background: rgba(255, 255, 255, .98); border: 1px solid rgba(255, 255, 255, .68); border-radius: 18px; box-shadow: var(--shadow); }
.booking-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.booking-top span { color: var(--red); font-size: 10px; font-weight: 800; letter-spacing: 1.4px; }
.booking-top h2 { margin-top: 2px; font: 800 24px "Montserrat", sans-serif; }
.booking-mark { display: grid; place-items: center; width: 46px; height: 46px; color: var(--cyan); background: rgba(0, 168, 200, .1); border-radius: 12px; font-size: 20px; }
#booking-form { display: grid; gap: 13px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field label { color: #526477; font-size: 10px; font-weight: 800; letter-spacing: .7px; text-transform: uppercase; }
.field input, .field select { width: 100%; min-width: 0; height: 43px; padding: 0 12px; color: var(--ink); background: #f5f8fa; border: 1px solid #dce5ec; border-radius: 8px; outline: none; transition: .2s ease; }
.field input:focus, .field select:focus { background: #fff; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0, 168, 200, .1); }
.control-icon { position: relative; }
.control-icon > i { position: absolute; z-index: 1; left: 13px; top: 50%; color: var(--cyan); transform: translateY(-50%); pointer-events: none; }
.control-icon select { padding-left: 39px; font-weight: 700; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.direction-row { display: grid; grid-template-columns: 1fr 42px 1fr; gap: 9px; align-items: center; }
.direction-point { min-width: 0; padding: 9px 11px; display: grid; background: #f5f8fa; border: 1px solid #dce5ec; border-radius: 8px; }
.direction-point small { color: #8191a1; font-size: 9px; font-weight: 800; letter-spacing: .8px; }
.direction-point strong { overflow: hidden; margin-top: 1px; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.swap-button { display: grid; place-items: center; width: 38px; height: 38px; color: #fff; background: var(--navy); border: 0; border-radius: 50%; transition: .2s ease; }
.swap-button:hover { background: var(--red); transform: rotate(180deg); }
.booking-total { min-height: 64px; padding: 10px 10px 10px 15px; display: flex; align-items: center; justify-content: space-between; gap: 14px; background: #eef9fb; border: 1px solid #c6eaf0; border-radius: 10px; }
.booking-total > div { display: grid; }
.booking-total small { color: #607b82; font-size: 9px; font-weight: 800; letter-spacing: .8px; }
.booking-total strong { color: #007e97; font: 800 22px "Montserrat", sans-serif; }
.submit-button { min-height: 43px; padding: 0 20px; color: #fff; background: var(--red); border: 0; border-radius: 8px; font-size: 12px; font-weight: 800; letter-spacing: .5px; transition: .2s ease; }
.submit-button:hover { background: var(--red-dark); }
.submit-button i { margin-left: 7px; }
.booking-note { margin-top: 11px; color: #7b8b9a; text-align: center; font-size: 10px; }
.booking-note i { margin-right: 4px; color: var(--cyan); }

.quick-info { position: relative; z-index: 2; color: #fff; background: var(--navy); }
.quick-info-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.quick-info-grid > div { min-height: 105px; padding: 22px 34px; display: flex; align-items: center; gap: 15px; border-right: 1px solid rgba(255, 255, 255, .1); }
.quick-info-grid > div:first-child { border-left: 1px solid rgba(255, 255, 255, .1); }
.quick-info-grid i { display: grid; place-items: center; width: 45px; height: 45px; flex: 0 0 auto; color: #6fd6e8; background: rgba(0, 168, 200, .1); border-radius: 10px; font-size: 18px; }
.quick-info-grid span { display: grid; }
.quick-info-grid strong { font-size: 14px; }
.quick-info-grid small { margin-top: 2px; color: #7890a4; font-size: 11px; }

.section { padding: 92px 0; }
.section-heading { max-width: 680px; margin: 0 auto 43px; text-align: center; }
.section-kicker { color: var(--red); font-size: 11px; font-weight: 800; letter-spacing: 1.7px; }
.section-heading h2, .how-intro h2, .faq-title h2 { margin-top: 7px; font: 800 clamp(28px, 3vw, 40px) / 1.18 "Montserrat", sans-serif; letter-spacing: -.8px; }
.section-heading p, .how-intro p, .faq-title p { margin-top: 11px; color: var(--muted); }
.routes-section { background: var(--surface); }
.route-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.route-card { position: relative; overflow: hidden; padding: 28px; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 12px 34px rgba(24, 48, 72, .07); transition: .25s ease; }
.route-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 4px; background: var(--cyan); }
.route-card.featured::before { background: var(--red); }
.route-card:hover { transform: translateY(-6px); box-shadow: 0 20px 44px rgba(24, 48, 72, .12); }
.route-card-head { display: flex; justify-content: space-between; align-items: center; color: #b0bfca; }
.route-card-head > i { font-size: 18px; }
.route-number { color: #b7c4ce; font: 800 12px "Montserrat", sans-serif; }
.route-label { margin-top: 24px; color: var(--red); font-size: 9px; font-weight: 800; letter-spacing: 1.4px; }
.route-card h3 { min-height: 58px; margin-top: 5px; font: 800 21px / 1.35 "Montserrat", sans-serif; }
.route-card h3 span { padding: 0 3px; color: var(--cyan); }
.starting-price { margin: 20px -28px 0; padding: 18px 28px; display: grid; background: #f4f8fa; border-top: 1px solid #e8eef3; border-bottom: 1px solid #e8eef3; }
.starting-price small { color: #7c8c9b; font-size: 9px; font-weight: 800; letter-spacing: .9px; }
.starting-price strong { color: #075579; font: 800 30px "Montserrat", sans-serif; }
.starting-price sup { margin-left: 2px; font-size: 14px; }
.price-lines { margin: 18px 0 22px; display: grid; gap: 11px; }
.price-lines > div { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: #617283; font-size: 12px; }
.price-lines span { display: inline-flex; align-items: center; gap: 7px; }
.price-lines i { width: 15px; color: #94a6b5; text-align: center; }
.price-lines strong { color: var(--ink); white-space: nowrap; }
.select-route { width: 100%; min-height: 43px; margin-top: auto; color: #fff; background: var(--navy); border: 0; border-radius: 8px; font-size: 12px; font-weight: 800; transition: .2s ease; }
.select-route:hover { background: var(--red); }
.select-route i { margin-left: 8px; }

.how-section { color: #fff; background: var(--navy); }
.how-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: center; }
.how-intro h2 { color: #fff; }
.how-intro p { color: #8fa4b6; }
.how-intro > a { display: inline-flex; align-items: center; gap: 9px; margin-top: 23px; color: #72d4e6; font-size: 13px; font-weight: 800; }
.steps { display: grid; }
.step { position: relative; padding: 22px 0; display: grid; grid-template-columns: 56px 1fr; gap: 20px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.step:first-child { border-top: 1px solid rgba(255, 255, 255, .1); }
.step b { display: grid; place-items: center; width: 48px; height: 48px; color: #72d4e6; background: rgba(0, 168, 200, .1); border-radius: 10px; font: 800 14px "Montserrat", sans-serif; }
.step h3 { font: 700 17px "Montserrat", sans-serif; }
.step p { margin-top: 5px; color: #8399ab; font-size: 13px; }

.contact-band { padding: 40px 0; color: #fff; background: var(--red); }
.contact-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.contact-band-inner > div:first-child span { color: rgba(255, 255, 255, .7); font-size: 10px; font-weight: 800; letter-spacing: 1.5px; }
.contact-band h2 { margin-top: 4px; font: 800 25px "Montserrat", sans-serif; }
.contact-actions { display: flex; gap: 12px; }
.contact-actions a { min-width: 180px; padding: 11px 16px; display: flex; align-items: center; gap: 11px; background: #fff; color: var(--ink); border-radius: 9px; }
.contact-actions > a > i { color: var(--red); font-size: 17px; }
.contact-actions span { display: grid; line-height: 1.15; }
.contact-actions small { color: #8795a2; font-size: 9px; font-weight: 700; text-transform: uppercase; }
.contact-actions strong { margin-top: 3px; font-size: 13px; }

.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 85px; align-items: start; }
.faq-list { display: grid; gap: 10px; }
.faq-list details { padding: 0 20px; background: #fff; border: 1px solid var(--line); border-radius: 10px; }
.faq-list summary { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 15px; font-size: 14px; font-weight: 700; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { color: var(--red); font-size: 11px; transition: .2s ease; }
.faq-list details[open] summary i { transform: rotate(45deg); }
.faq-list p { padding: 0 0 18px; color: var(--muted); font-size: 13px; }

.footer { padding: 58px 0 20px; color: #9db0c0; background: #041522; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 65px; }
.footer-brand p { max-width: 390px; margin-top: 17px; font-size: 13px; }
.footer h3 { margin-bottom: 13px; color: #fff; font: 700 14px "Montserrat", sans-serif; }
.footer-grid > div:not(.footer-brand) a { display: block; margin: 8px 0; font-size: 13px; }
.footer a:hover { color: #fff; }
.footer-bottom { margin-top: 38px; padding-top: 18px; color: #5f778a; border-top: 1px solid rgba(255, 255, 255, .08); font-size: 11px; }

.floating-contact { position: fixed; z-index: 900; right: 22px; bottom: 22px; display: grid; gap: 10px; }
.floating-contact a { display: grid; place-items: center; width: 50px; height: 50px; color: #fff; border-radius: 50%; box-shadow: 0 10px 25px rgba(7, 26, 43, .25); }
.floating-zalo { background: #0877dd; }
.floating-phone { background: var(--red); }
.mobile-contact-bar { display: none; }

.modal { position: fixed; z-index: 1200; inset: 0; padding: 20px; display: none; place-items: center; background: rgba(4, 21, 34, .76); }
.modal.open { display: grid; }
.modal-card { position: relative; width: min(460px, 100%); padding: 32px; text-align: center; background: #fff; border-radius: 18px; box-shadow: var(--shadow); }
.modal-card > button:first-child { position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; background: transparent; border: 0; font-size: 20px; }
.modal-check { color: #10a66a; font-size: 50px; }
.modal-card h2 { margin: 13px 0 5px; font: 800 22px "Montserrat", sans-serif; }
.modal-card p { color: var(--muted); font-size: 13px; }
#modal-summary { margin: 18px 0; padding: 15px; text-align: left; background: var(--surface); border-radius: 9px; font-size: 13px; }
.modal-card .submit-button { width: 100%; }

@media (max-width: 1060px) {
    .nav { display: none; }
    .menu-toggle { display: block; }
    .hero { padding-top: 120px; }
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .hero-copy { max-width: 760px; text-align: center; margin: 0 auto; }
    .hero-routes { margin-left: auto; margin-right: auto; text-align: left; }
    .hero-actions { justify-content: center; }
    .booking-card { width: min(660px, 100%); margin: 0 auto; }
    .route-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .route-card:last-child { grid-column: 1 / -1; width: calc(50% - 11px); justify-self: center; }
    .how-grid, .faq-grid { gap: 45px; }
}

@media (max-width: 760px) {
    .container { padding: 0 18px; }
    .header-inner { height: 70px; }
    .brand img { width: 46px; height: 46px; }
    .brand strong { font-size: 12px; }
    .header-phone { display: none; }
    .hero { min-height: auto; padding: 108px 0 54px; background-position: 62% center; }
    .hero-shade { background: linear-gradient(180deg, rgba(4, 20, 34, .95), rgba(4, 20, 34, .76)); }
    .hero h1 { font-size: clamp(36px, 10vw, 48px); letter-spacing: -1.8px; }
    .hero-lead { font-size: 15px; }
    .hero-routes > div { grid-template-columns: 23px minmax(72px, 1fr) 16px minmax(76px, 1fr) auto; font-size: 11px; }
    .booking-card { padding: 22px 17px; border-radius: 15px; }
    .booking-top h2 { font-size: 21px; }
    .booking-mark { width: 41px; height: 41px; }
    .quick-info-grid { grid-template-columns: 1fr; padding-top: 10px; padding-bottom: 10px; }
    .quick-info-grid > div, .quick-info-grid > div:first-child { min-height: 76px; padding: 13px 4px; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
    .quick-info-grid > div:last-child { border-bottom: 0; }
    .section { padding: 68px 0; }
    .section-heading { margin-bottom: 30px; }
    .route-grid { grid-template-columns: 1fr; }
    .route-card:last-child { grid-column: auto; width: 100%; }
    .how-grid, .faq-grid { grid-template-columns: 1fr; gap: 35px; }
    .contact-band-inner { flex-direction: column; align-items: flex-start; }
    .contact-actions { width: 100%; }
    .contact-actions a { flex: 1; min-width: 0; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px; }
    .footer-brand { grid-column: 1 / -1; }
    .floating-contact { display: none; }
    .mobile-contact-bar { position: fixed; z-index: 950; inset: auto 0 0; height: 56px; display: grid; grid-template-columns: 1fr 1fr; color: #fff; background: var(--navy); box-shadow: 0 -8px 25px rgba(7, 26, 43, .18); }
    .mobile-contact-bar a { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 13px; font-weight: 800; }
    .mobile-contact-bar a:last-child { background: var(--red); }
    body { padding-bottom: 56px; }
}

@media (max-width: 520px) {
    .form-row { grid-template-columns: 1fr; }
    .direction-row { grid-template-columns: 1fr 38px 1fr; gap: 6px; }
    .direction-point { padding: 8px; }
    .direction-point strong { font-size: 11px; }
    .booking-total { align-items: stretch; flex-direction: column; }
    .booking-total > div { text-align: center; }
    .submit-button { width: 100%; }
    .hero-actions .button { flex: 1; padding: 0 13px; }
    .contact-actions { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
}

@media (max-width: 350px) {
    .brand span { display: none; }
    .hero-routes > div { grid-template-columns: 20px 1fr 14px 1fr; }
    .hero-routes b { display: none; }
}