/* ===== HHG Landing — chủ đạo xanh nhạt + trắng, vibe vui vẻ ===== */
:root {
  --blue-50:  #f0f9ff;
  --blue-100: #e0f2fe;
  --blue-200: #bae6fd;
  --blue-300: #7dd3fc;
  --blue-400: #38bdf8;
  --blue-500: #0ea5e9;
  --blue-600: #0284c7;
  --blue-700: #0369a1;
  --ink:      #0f2b46;
  --ink-soft: #486581;
  --white:    #ffffff;
  --shadow:   0 18px 40px -18px rgba(2, 132, 199, .45);
  --shadow-sm:0 8px 22px -12px rgba(2, 132, 199, .4);
  --radius:   22px;
  --font-head:'Baloo 2', system-ui, sans-serif;
  --font-body:'Be Vietnam Pro', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--blue-50);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { width: min(1140px, 92vw); margin: 0 auto; }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; color: var(--ink); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.2rem; }

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

.grad {
  background: linear-gradient(120deg, var(--blue-500), var(--blue-300));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 1.5rem; border-radius: 999px;
  font-family: var(--font-head); font-weight: 600; font-size: .98rem;
  cursor: pointer; border: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: linear-gradient(120deg, var(--blue-500), var(--blue-400)); color: #fff; box-shadow: var(--shadow-sm); }
.btn--soft { background: var(--white); color: var(--blue-600); box-shadow: var(--shadow-sm); }
.btn--ghost { background: rgba(255,255,255,.6); color: var(--blue-700); padding: .5rem 1.1rem; border: 1.5px solid var(--blue-200); }
.btn--ghost:hover { background: #fff; }

/* ===== Nav ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(240, 249, 255, .8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(186, 230, 253, .6);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; padding: .85rem 0; }
.brand { display: inline-flex; align-items: center; gap: .4rem; }
.brand__img { height: 34px; width: auto; display: block; }
.brand--footer .brand__img { height: 44px; }
.brand__logo {
  font-family: var(--font-head); font-weight: 800; font-size: 1.6rem; letter-spacing: .5px;
  background: linear-gradient(120deg, var(--blue-600), var(--blue-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand__tag { font-family: var(--font-head); font-weight: 600; color: var(--blue-400); font-size: .95rem; }
.nav__links { display: flex; align-items: center; gap: 1.4rem; }
.nav__links a { font-weight: 500; color: var(--ink-soft); transition: color .15s; }
.nav__links a:hover { color: var(--blue-600); }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
  background: linear-gradient(180deg, var(--blue-100), var(--blue-50));
}
.hero__inner { position: relative; z-index: 2; text-align: center; max-width: 820px; margin: 0 auto; }
.hero__logo { height: clamp(66px, 11vw, 104px); width: auto; display: block; margin: 0 auto 1.6rem; filter: drop-shadow(0 10px 22px rgba(2,132,199,.28)); }
.hero__blob { position: absolute; border-radius: 50%; filter: blur(50px); opacity: .5; z-index: 1; }
.hero__blob--1 { width: 380px; height: 380px; background: var(--blue-300); top: -80px; left: -60px; }
.hero__blob--2 { width: 420px; height: 420px; background: var(--blue-200); bottom: -140px; right: -80px; }
.pill {
  display: inline-block; background: #fff; color: var(--blue-600);
  padding: .5rem 1.1rem; border-radius: 999px; font-weight: 600; font-size: .92rem;
  box-shadow: var(--shadow-sm); margin-bottom: 1.4rem;
}
.hero__title { font-size: clamp(2.4rem, 6vw, 4.2rem); font-weight: 800; }
.hero__subtitle { margin: 1.3rem auto 0; font-size: clamp(1rem, 2vw, 1.18rem); color: var(--ink-soft); max-width: 640px; }
.hero__cta { margin-top: 2rem; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero__stats { margin-top: 3rem; display: flex; gap: clamp(1.5rem, 5vw, 3.5rem); justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat b { display: block; font-family: var(--font-head); font-size: 2.2rem; font-weight: 800; color: var(--blue-600); }
.stat span { color: var(--ink-soft); font-size: .92rem; }

/* ===== Sections ===== */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section--tint { background: linear-gradient(180deg, var(--white), var(--blue-50)); }
.section__head { text-align: center; max-width: 620px; margin: 0 auto 2.8rem; }
.eyebrow {
  display: inline-block; font-family: var(--font-head); font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; font-size: .82rem; color: var(--blue-500); margin-bottom: .6rem;
}
.eyebrow--light { color: var(--blue-200); }
.section__lead { color: var(--ink-soft); margin-top: .7rem; }

/* ===== About ===== */
.about { display: grid; grid-template-columns: 1.15fr .85fr; gap: 2.5rem; align-items: center; }
.about__text .eyebrow { color: var(--blue-500); }
.about__text h2 { margin-bottom: 1rem; }
.about__text p { color: var(--ink-soft); margin-bottom: 1rem; }
.about__card {
  background: #fff; border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow);
  border: 1px solid var(--blue-100);
}
.quote { font-family: var(--font-head); font-weight: 600; font-size: 1.15rem; color: var(--blue-700); margin-bottom: 1.3rem; }
.about__list { list-style: none; display: grid; gap: .7rem; }
.about__list li { color: var(--ink-soft); font-weight: 500; display: flex; align-items: center; gap: .6rem; }
.about__list li i { color: #16a34a; font-size: 1.05rem; }

/* ===== Grids ===== */
.grid { display: grid; gap: 1.4rem; }
.grid--services { grid-template-columns: repeat(3, 1fr); }
.grid--team { grid-template-columns: repeat(4, 1fr); }
.grid--culture { grid-template-columns: repeat(4, 1fr); }

.svc {
  background: #fff; border-radius: var(--radius); padding: 1.8rem; box-shadow: var(--shadow-sm);
  border: 1px solid var(--blue-100); transition: transform .2s ease, box-shadow .2s ease;
}
.svc:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.svc__icon {
  font-size: 1.7rem; margin-bottom: .9rem; color: var(--blue-500);
  width: 58px; height: 58px; border-radius: 16px; display: grid; place-items: center;
  background: var(--blue-100);
}
.svc h3 { margin-bottom: .4rem; }
.svc p { color: var(--ink-soft); font-size: .96rem; }

/* ===== Team cards ===== */
.team-loading { grid-column: 1 / -1; text-align: center; color: var(--ink-soft); padding: 2rem; }
.member {
  background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm);
  border: 1px solid var(--blue-100); transition: transform .2s ease, box-shadow .2s ease;
  display: flex; flex-direction: column;
}
.member:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.member__photo {
  position: relative; aspect-ratio: 1 / 1; background: linear-gradient(135deg, var(--blue-200), var(--blue-400));
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.member__photo img { width: 100%; height: 100%; object-fit: cover; }
.member__initials { font-family: var(--font-head); font-weight: 800; font-size: 2.8rem; color: #fff; }
.member__emoji {
  position: absolute; bottom: 10px; right: 10px; font-size: 1.2rem; color: var(--blue-600);
  background: rgba(255,255,255,.95); width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-sm);
}
.member__body { padding: 1.3rem 1.3rem 1.6rem; display: flex; flex-direction: column; flex: 1; }
.member__name { font-size: 1.2rem; margin-bottom: .15rem; }
.member__role { color: var(--blue-600); font-weight: 600; font-size: .9rem; margin-bottom: .8rem; }
.member__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .9rem; }
.tag {
  background: var(--blue-100); color: var(--blue-700); font-size: .74rem; font-weight: 600;
  padding: .25rem .6rem; border-radius: 999px;
}
.member__bio { color: var(--ink-soft); font-size: .92rem; }

/* ===== Culture (dark) ===== */
.section--dark { background: linear-gradient(135deg, var(--blue-700), var(--blue-500)); color: #fff; }
.section--dark h2 { color: #fff; }
.section__head--light .section__lead { color: var(--blue-100); }
.culture__item {
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius); padding: 1.6rem; text-align: center; backdrop-filter: blur(6px);
}
.culture__emoji { font-size: 2rem; margin-bottom: .7rem; color: #fff; }
.culture__item h3 { color: #fff; margin-bottom: .4rem; }
.culture__item p { color: var(--blue-100); font-size: .92rem; }

/* ===== Footer ===== */
.footer { background: var(--ink); color: #cfe4f5; padding: 3rem 0 2rem; }
.footer__inner { text-align: center; display: grid; gap: .8rem; justify-items: center; }
.brand--footer .brand__logo { background: linear-gradient(120deg, var(--blue-300), var(--blue-100)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.footer__text { color: #9db8ce; }
.footer__copy { color: #6f8aa3; font-size: .88rem; }
.footer__copy .fa-heart { color: #f43f5e; }
.footer__copy .fa-mug-hot { color: var(--blue-300); }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .grid--services, .grid--team, .grid--culture { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .nav__links a:not(.btn) { display: none; }
  .grid--services, .grid--team, .grid--culture { grid-template-columns: 1fr; }
  .hero__stats { gap: 2rem; }
}