/* NGUYEN TRANG BOOKING - COMPLETE STYLESHEET */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--color-primary:#0789ad;--color-primary-dark:#075a73;--color-primary-light:#eef8fa;--color-accent:#f5aa00;--color-text:#172b3a;--color-text-muted:#667785;--color-border:#e4ecef;--color-white:#fff;--color-zalo:#0068ff;--gradient-hero:linear-gradient(135deg,#fff 0%,#f7fbfc 55%,#edf7f9 100%);--gradient-btn:linear-gradient(135deg,#0b9abb 0%,#067d9d 100%);--container-width:1200px;--radius-full:999px;--radius-lg:18px;--shadow-btn:0 12px 24px -8px rgba(7,137,173,.4);--transition:.25s ease}
html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--color-text);background:#fff;line-height:1.6;overflow-x:hidden;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none;color:inherit}ul{list-style:none}img{max-width:100%;display:block}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0;background:none}.container{width:100%;max-width:var(--container-width);margin-inline:auto;padding-inline:24px}
/* HEADER */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}.logo{display:inline-flex;align-items:center;flex:0 0 auto;gap:10px;font-weight:700;font-size:20px;color:var(--color-primary-dark)}.logo__image{display:block;width:155px;height:auto;max-width:155px;object-fit:contain}.nav{margin-left:auto}.nav__list{display:flex;align-items:center;justify-content:flex-end;gap:28px;flex-wrap:nowrap}.nav__list li{flex:0 0 auto}.nav__link{display:inline-flex;align-items:center;white-space:nowrap;font-size:14px;line-height:1.2;font-weight:500;color:var(--color-text-muted);transition:color var(--transition)}.nav__link:hover,.nav__link--active{color:var(--color-primary-dark);font-weight:600}.nav__toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:32px;height:32px;flex:0 0 auto}.nav__toggle span{display:block;height:2px;width:100%;background:var(--color-primary-dark);border-radius:2px;transition:transform var(--transition),opacity var(--transition)}.nav__toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav__toggle[aria-expanded="true"] span:nth-child(2){opacity:0}.nav__toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:16px 42px;border-radius:var(--radius-full);font-weight:600;font-size:15px;transition:transform var(--transition),box-shadow var(--transition)}.btn--primary{background:var(--gradient-btn);color:#fff;box-shadow:var(--shadow-btn)}.btn--primary:hover,.btn--secondary:hover{transform:translateY(-2px)}.btn--secondary{background:#fff;color:var(--color-primary-dark);border:1px solid rgba(7,137,173,.25);box-shadow:0 8px 20px rgba(20,50,60,.06)}
/* HERO */
.hero{position:relative;background:var(--gradient-hero);overflow:hidden}.hero::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(7,137,173,.05);top:-180px;right:-120px}.hero__inner{position:relative;z-index:1;display:flex;align-items:center;gap:64px;padding-block:72px;min-height:calc(100vh - 76px)}.hero__content{flex:1 1 520px;max-width:590px}.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--color-accent);font-size:13px;font-weight:700;letter-spacing:2px}.hero__eyebrow::before{content:"";width:32px;height:2px;background:var(--color-accent)}.hero__title{margin-top:18px;font-size:clamp(42px,5vw,64px);font-weight:500;line-height:1.08;color:var(--color-text);letter-spacing:-1.5px}.hero__title strong{display:block;margin-top:8px;color:var(--color-primary-dark);font-weight:800}.hero__subtitle{margin-top:24px;color:var(--color-primary);font-size:20px;font-weight:600}.hero__desc{margin-top:14px;max-width:520px;color:var(--color-text-muted);font-size:16px;line-height:1.8}.hero__actions{display:flex;align-items:center;gap:14px;margin-top:32px}.hero__trust{display:flex;align-items:center;justify-content:flex-start;flex-wrap:wrap;gap:18px;margin-top:28px;color:var(--color-text-muted);font-size:13px;font-weight:500}.hero__trust span{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.hero__media{flex:1 1 500px;display:flex;justify-content:center;align-items:center;position:relative}.hero__illustration{width:100%;max-width:570px;height:auto;filter:drop-shadow(0 24px 35px rgba(20,60,75,.1))}
/* ZALO FLOAT */
.zalo-chat{position:fixed;right:24px;bottom:24px;z-index:999;width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px -6px rgba(0,104,255,.55);transition:transform var(--transition)}.zalo-chat:hover{transform:translateY(-3px) scale(1.05)}.zalo-chat__icon{width:100%;height:100%;position:relative;z-index:2}.zalo-chat__ping{position:absolute;inset:0;border-radius:50%;background:var(--color-zalo);opacity:.55;animation:zalo-ping 2.2s cubic-bezier(0,0,.2,1) infinite}@keyframes zalo-ping{0%{transform:scale(1);opacity:.55}100%{transform:scale(1.9);opacity:0}}.zalo-chat__tooltip{position:absolute;right:calc(100% + 14px);top:50%;transform:translateY(-50%) translateX(8px);background:var(--color-text);color:#fff;font-size:13px;font-weight:500;white-space:nowrap;padding:8px 14px;border-radius:8px;opacity:0;visibility:hidden;transition:opacity var(--transition),transform var(--transition)}.zalo-chat:hover .zalo-chat__tooltip,.zalo-chat:focus-visible .zalo-chat__tooltip{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
/* SECTIONS */
.section{padding-block:96px}.section:nth-of-type(even){background:var(--color-primary-light)}.eyebrow{display:inline-block;color:var(--color-accent);font-weight:700;font-size:13px;letter-spacing:1.5px;text-transform:uppercase}.section-title{margin-top:10px;font-size:34px;font-weight:700;color:var(--color-primary-dark);line-height:1.25}.section-desc{margin-top:14px;color:var(--color-text-muted);font-size:15.5px}.section-header{max-width:620px;margin-inline:auto;margin-bottom:52px;text-align:center}
/* ABOUT */
.about__inner{display:flex;align-items:center;gap:64px}.about__media{flex:0 0 220px;width:220px}.about__media svg{width:100%;height:auto}.about__content{flex:1}.about__stats{display:flex;gap:40px;margin-top:32px}.about__stats strong{display:block;font-size:26px;color:var(--color-primary-dark)}.about__stats span{font-size:13.5px;color:var(--color-text-muted)}
/* SERVICES */
.service__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.service-card{min-height:286px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:34px 28px 30px;transition:transform var(--transition),box-shadow var(--transition)}.service-card:hover{transform:translateY(-4px);box-shadow:0 20px 32px -16px rgba(26,86,196,.25)}.service-card__icon{position:relative;flex:0 0 76px;width:76px;height:76px;border-radius:22px;background:var(--color-primary-light);color:var(--color-primary);display:inline-flex;align-items:center;justify-content:center;box-shadow:inset 0 0 0 1px rgba(7,137,173,.06)}.service-card__icon svg{display:none}.service-card__icon::before{content:"";width:48px;height:48px;background-repeat:no-repeat;background-position:center;background-size:contain}.service-card:nth-child(1) .service-card__icon::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' fill='none'%3E%3Cpath d='M10 40c13-3 25-9 35-18 5-5 9-8 12-7 2 1 1 5-3 9-9 10-22 17-38 21' stroke='%230789ad' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M18 35 25 20l4 1-1 12 12-6 4 3-11 9 7 8-4 2-10-6-9 3z' fill='%23f5aa00'/%3E%3Ccircle cx='51' cy='48' r='3' fill='%230789ad'/%3E%3C/svg%3E")}.service-card:nth-child(3) .service-card__icon::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' fill='none'%3E%3Ccircle cx='32' cy='20' r='10' fill='%23f5aa00'/%3E%3Cpath d='M14 54c1-12 8-20 18-20s17 8 18 20' fill='%230789ad'/%3E%3Cpath d='M17 23c0-8 6-14 15-14s15 6 15 14' stroke='%23075a73' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M47 23v7M50 23v7' stroke='%23075a73' stroke-width='3' stroke-linecap='round'/%3E%3Cpath d='M47 29c-1 5-5 8-9 9' stroke='%23075a73' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E")}.service-card:nth-child(4) .service-card__icon::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' fill='none'%3E%3Cpath d='M10 54V18l22-8 22 8v36' fill='%23eef8fa' stroke='%23075a73' stroke-width='3' stroke-linejoin='round'/%3E%3Cpath d='M20 25h6M38 25h6M20 34h6M38 34h6M20 43h6M38 43h6' stroke='%230789ad' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M28 54V44h8v10' stroke='%23f5aa00' stroke-width='4' stroke-linejoin='round'/%3E%3Cpath d='M45 49c0-3 2-5 5-5s5 2 5 5v5H45z' fill='%23f5aa00'/%3E%3C/svg%3E")}.service-card h3{width:100%;margin-top:20px;font-size:18px;line-height:1.35;color:var(--color-primary-dark);text-align:center}.service-card p{width:100%;max-width:300px;margin-top:10px;color:var(--color-text-muted);font-size:14.5px;line-height:1.65;text-align:center}
/* CONTACT */
.contact__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.contact-card{display:block;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:26px 22px;text-align:center;transition:transform var(--transition),box-shadow var(--transition)}.contact-card:not(.contact-card--static):hover{transform:translateY(-4px);box-shadow:0 20px 32px -16px rgba(26,86,196,.25)}.contact-card__icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;background:var(--color-primary-light);color:var(--color-primary)}.contact-card__icon svg{width:24px;height:24px}.contact-card__icon--zalo{color:var(--color-zalo)}.contact-card h3{margin-top:14px;font-size:15px;color:var(--color-primary-dark)}.contact-card p{margin-top:4px;color:var(--color-text-muted);font-size:14px;overflow-wrap:anywhere}.contact__cta{display:flex;width:fit-content;margin:44px auto 0}
/* FAQ */
.faq__list{max-width:760px;margin-inline:auto;display:flex;flex-direction:column;gap:14px}.faq-item{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px 24px}.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:600;color:var(--color-primary-dark);cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item__icon{flex:none;position:relative;width:18px;height:18px}.faq-item__icon::before,.faq-item__icon::after{content:"";position:absolute;inset:0;margin:auto;background:var(--color-primary);border-radius:2px;transition:transform var(--transition)}.faq-item__icon::before{width:100%;height:2px}.faq-item__icon::after{width:2px;height:100%}.faq-item[open] .faq-item__icon::after{transform:rotate(90deg);opacity:0}.faq-item p{margin-top:14px;color:var(--color-text-muted);font-size:14.5px}
/* FOOTER */
.site-footer{background:var(--color-primary-dark);padding-block:32px}.site-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.site-footer .logo{color:#fff}.site-footer__copy{color:#b7d2dc;font-size:13.5px}.site-footer__zalo{color:#fff;font-weight:600;font-size:14px}
/* RESPONSIVE */
@media(max-width:960px){.hero__inner{flex-direction:column;text-align:center;padding-block:56px;min-height:auto}.hero__content{max-width:680px}.hero__eyebrow{justify-content:center}.hero__title{font-size:48px}.hero__desc{margin-inline:auto}.hero__actions{justify-content:center}.hero__trust{justify-content:center}.hero__media{width:100%}.hero__illustration{max-width:520px}.about__inner{gap:40px}.service__grid{grid-template-columns:repeat(2,1fr)}.contact__grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.site-header__inner{height:76px}.logo__image{width:145px;max-width:145px}.nav{position:absolute;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--color-border);max-height:0;overflow:hidden;margin-left:0;transition:max-height var(--transition)}.nav--open{max-height:360px}.nav__list{flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 20px;margin-left:0}.nav__list li{width:100%}.nav__link{display:block;padding:12px 0}.nav__toggle{display:flex}.hero__inner{gap:36px;padding-block:48px}.hero__title{font-size:42px}.hero__subtitle{font-size:18px}.hero__desc{font-size:15px}.hero__actions{flex-direction:column;width:100%}.hero__actions .btn{width:100%}.hero__trust{width:100%;display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:center;align-items:center;gap:8px}.hero__trust span{flex:0 1 auto;white-space:nowrap;font-size:11px;gap:3px}.about__inner{flex-direction:column;align-items:stretch;gap:28px}.about__media{width:180px;flex:0 0 auto;margin-inline:auto}.about__content{text-align:left}.about__content .section-title{text-align:center}.about__stats{justify-content:center;gap:18px;flex-wrap:nowrap}.about__stats li{text-align:center;min-width:0}.about__stats strong{font-size:22px}.about__stats span{font-size:12px;white-space:nowrap}.section{padding-block:70px}.section-header{margin-bottom:36px}.section-title{font-size:29px}.service__grid{grid-template-columns:1fr;gap:18px}.service-card{min-height:0;padding:30px 24px 28px}.service-card__icon{flex-basis:72px;width:72px;height:72px}.service-card__icon::before{width:46px;height:46px}.contact__grid{grid-template-columns:1fr;gap:16px}.contact-card{padding:24px 18px}.zalo-chat{right:16px;bottom:16px;width:52px;height:52px}.site-footer__inner{flex-direction:column;text-align:center}}
@media(max-width:380px){.hero__trust{gap:5px}.hero__trust span{font-size:9.5px}.hero__trust span:nth-child(1){letter-spacing:-.2px}.hero__trust span:nth-child(2){letter-spacing:-.3px}.hero__trust span:nth-child(3){letter-spacing:-.2px}.hero__title{font-size:36px}.about__stats{gap:10px}.about__stats strong{font-size:20px}.about__stats span{font-size:11px}}
@media(max-width:340px){.hero__trust{gap:3px}.hero__trust span{font-size:9px}.hero__actions .btn{padding-inline:24px}}


/* === NGUYEN TRANG BOOKING - SERVICE CARD VISUAL UPDATE === */
.service-card {
  min-height: 286px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  padding: 34px 28px 30px;
}

.service-card__icon {
  position: relative;
  flex: 0 0 76px;
  width: 76px;
  height: 76px;
  border-radius: 22px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  box-shadow: inset 0 0 0 1px rgba(7, 137, 173, 0.06);
}

.service-card__icon svg {
  display: none;
}

.service-card__icon::before {
  content: '';
  width: 48px;
  height: 48px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

/* 1. Đặt vé máy bay - máy bay + đường bay */
.service-card:nth-child(1) .service-card__icon::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' fill='none'%3E%3Cpath d='M10 40c13-3 25-9 35-18 5-5 9-8 12-7 2 1 1 5-3 9-9 10-22 17-38 21' stroke='%230789ad' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M18 35 25 20l4 1-1 12 12-6 4 3-11 9 7 8-4 2-10-6-9 3z' fill='%23f5aa00'/%3E%3Ccircle cx='51' cy='48' r='3' fill='%230789ad'/%3E%3C/svg%3E");
}

/* 3. Tư vấn lịch trình - tư vấn viên */
.service-card:nth-child(3) .service-card__icon::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' fill='none'%3E%3Ccircle cx='32' cy='20' r='10' fill='%23f5aa00'/%3E%3Cpath d='M14 54c1-12 8-20 18-20s17 8 18 20' fill='%230789ad'/%3E%3Cpath d='M17 23c0-8 6-14 15-14s15 6 15 14' stroke='%23075a73' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M47 23v7M50 23v7' stroke='%23075a73' stroke-width='3' stroke-linecap='round'/%3E%3Cpath d='M47 29c-1 5-5 8-9 9' stroke='%23075a73' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E");
}

/* 4. Đặt vé nhóm / doanh nghiệp - tòa nhà + nhóm người */
.service-card:nth-child(4) .service-card__icon::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64' fill='none'%3E%3Cpath d='M10 54V18l22-8 22 8v36' fill='%23eef8fa' stroke='%23075a73' stroke-width='3' stroke-linejoin='round'/%3E%3Cpath d='M20 25h6M38 25h6M20 34h6M38 34h6M20 43h6M38 43h6' stroke='%230789ad' stroke-width='4' stroke-linecap='round'/%3E%3Cpath d='M28 54V44h8v10' stroke='%23f5aa00' stroke-width='4' stroke-linejoin='round'/%3E%3Ccircle cx='50' cy='48' r='5' fill='%23f5aa00'/%3E%3Ccircle cx='42' cy='51' r='4' fill='%230789ad'/%3E%3C/svg%3E");
}

.service-card h3 {
  width: 100%;
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.35;
  text-align: center;
}

.service-card p {
  width: 100%;
  max-width: 300px;
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.65;
  text-align: center;
}

@media (max-width: 768px) {
  .service-card {
    min-height: 0;
    padding: 30px 24px 28px;
  }

  .service-card__icon {
    flex-basis: 72px;
    width: 72px;
    height: 72px;
    border-radius: 20px;
  }

  .service-card__icon::before {
    width: 46px;
    height: 46px;
  }

  .service-card h3 {
    font-size: 18px;
  }

  .service-card p {
    max-width: 330px;
  }
}


/* Contact cards: centered typography and distinctive Zalo icon */
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.contact-card__icon--zalo {
  color: #0068ff;
}

.contact-card__icon--zalo svg {
  width: 28px;
  height: 28px;
}

.contact-card h3,
.contact-card p {
  text-align: center;
}