/* ============================================================
   HITMALL HK LIMITED — landing page styles
   Palette: Graphite + Electric Blue
   ============================================================ */

:root {
  --ink:       #16181d;   /* graphite */
  --ink-2:     #1e2128;
  --ink-3:     #2a2f3a;
  --slate:     #565d6b;
  --muted:     #7a828f;
  --line:      #e4e6eb;
  --bg:        #ffffff;
  --bg-alt:    #f5f6f8;
  --accent:    #3b82f6;   /* electric blue */
  --accent-2:  #2f6fe0;   /* hover */
  --accent-soft: rgba(59, 130, 246, 0.10);
  --white:     #ffffff;
  --radius:    14px;
  --radius-sm: 10px;
  --shadow:    0 10px 40px rgba(22, 24, 29, 0.07);
  --shadow-lg: 0 24px 70px rgba(22, 24, 29, 0.14);
  --maxw:      1160px;
  --font:      'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --display:   'Sora', var(--font);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--display); line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
p { margin: 0 0 1rem; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.ic { width: 24px; height: 24px; display: block; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem; padding: 14px 26px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; cursor: pointer;
  border: 1.5px solid transparent; transition: all .2s ease; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent-2); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(59,130,246,.32); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,.30); }
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.08); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); }
.brand-mark { color: var(--ink); display: inline-flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-text strong { font-family: var(--display); font-weight: 800; font-size: 1.15rem; letter-spacing: .02em; }
.brand-text em { font-style: normal; font-size: .72rem; color: var(--muted); letter-spacing: .18em; text-transform: uppercase; margin-top: 3px; }
.brand-text.light strong { color: var(--white); }
.brand-text.light em { color: rgba(255,255,255,.6); }

.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-size: .93rem; font-weight: 500; color: var(--slate); transition: color .18s; }
.nav a:hover { color: var(--ink); }
.nav .nav-cta {
  background: var(--ink); color: var(--white); padding: 10px 20px; border-radius: 999px; font-weight: 600;
}
.nav .nav-cta:hover { background: var(--ink-2); color: var(--white); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }
.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); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #1c1f26 0%, var(--ink) 55%, #101216 100%);
  color: var(--white);
  padding: 96px 0 88px;
}
.hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(620px 320px at 82% 4%, rgba(59,130,246,.20), transparent 70%),
    radial-gradient(520px 420px at 4% 104%, rgba(59,130,246,.10), transparent 72%);
}
.hero-inner { position: relative; max-width: 880px; }
.eyebrow { font-size: .8rem; letter-spacing: .2em; text-transform: uppercase; font-weight: 600; color: var(--accent); margin: 0 0 18px; }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 800; margin-bottom: 22px; }
.hero h1 .hl { color: var(--accent); }
.hero-sub { font-size: clamp(1rem, 2.2vw, 1.18rem); color: rgba(255,255,255,.80); max-width: 640px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 34px; }
.stat { display: flex; flex-direction: column; gap: 6px; }
.stat-num { font-family: var(--display); font-size: clamp(1.6rem, 3.5vw, 2.3rem); font-weight: 800; color: var(--white); }
.stat-label { font-size: .82rem; color: rgba(255,255,255,.58); letter-spacing: .02em; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--ink); color: var(--white); }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); font-weight: 700; margin-bottom: 14px; }
.section-lead { color: var(--muted); font-size: 1.05rem; }
.section-dark .section-lead { color: rgba(255,255,255,.70); }
.section:not(.section-dark) h2 { color: var(--ink); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: start; }
.about-copy h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 700; margin-bottom: 20px; }
.about-copy p { color: var(--slate); font-size: 1.03rem; }
.check-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 32px; color: var(--ink); font-weight: 500; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--accent-soft);
}
.check-list li::after { content: ""; position: absolute; left: 7px; top: 7px; width: 5px; height: 9px; border: solid var(--accent); border-width: 0 2px 2px 0; transform: rotate(45deg); }

.about-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow); position: sticky; top: 96px;
}
.about-card h3 { font-size: 1.1rem; margin-bottom: 14px; color: var(--ink); }
.addr { color: var(--slate); font-size: .96rem; line-height: 1.7; margin-bottom: 22px; }
.about-mini { display: grid; gap: 14px; border-top: 1px solid var(--line); padding-top: 20px; }
.about-mini div { display: flex; flex-direction: column; }
.about-mini span { font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin-bottom: 3px; }
.about-mini strong { font-size: .98rem; color: var(--ink); font-weight: 600; }

/* ---------- Product cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; transition: transform .22s ease, box-shadow .22s ease, border-color .22s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-ic {
  width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 18px;
}
.card-ic .ic { width: 26px; height: 26px; }
.card h3 { font-size: 1.18rem; margin-bottom: 10px; color: var(--ink); }
.card p { color: var(--muted); font-size: .96rem; margin: 0; }

/* ---------- Brands ---------- */
.brand-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; max-width: 960px; margin: 0 auto; }
.brand-chip {
  display: grid; place-items: center; padding: 26px 10px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); background: var(--white); font-family: var(--display);
  font-weight: 700; font-size: 1.12rem; color: var(--ink-3); letter-spacing: .01em;
  transition: all .2s ease;
}
.brand-chip:hover { color: var(--ink); border-color: var(--accent); box-shadow: 0 8px 24px rgba(59,130,246,.12); transform: translateY(-3px); }

/* ---------- Why us / features ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature {
  padding: 30px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,.09);
  background: rgba(255,255,255,.03); transition: background .2s, border-color .2s;
}
.feature:hover { background: rgba(255,255,255,.055); border-color: rgba(59,130,246,.45); }
.feature-ic {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(59,130,246,.14); color: var(--accent); margin-bottom: 16px;
}
.feature h3 { font-size: 1.14rem; margin-bottom: 8px; color: var(--white); }
.feature p { color: rgba(255,255,255,.66); font-size: .95rem; margin: 0; }

/* ---------- Contact ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.contact-card {
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s, border-color .2s;
}
a.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.cc-ic {
  width: 46px; height: 46px; border-radius: 11px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 10px;
}
.cc-ic .ic { width: 23px; height: 23px; }
.cc-label { font-size: .74rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-weight: 600; }
.cc-value { color: var(--ink); font-size: 1rem; font-weight: 600; word-break: break-word; }
.cc-value.muted { color: var(--muted); font-weight: 500; }
a.contact-card .cc-value { color: var(--accent); }
.contact-cta { text-align: center; }

/* ---------- Footer ---------- */
.site-footer { background: #0f1013; color: rgba(255,255,255,.7); padding: 56px 0 28px; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand { max-width: 380px; }
.footer-brand p { margin: 14px 0 0; font-size: .92rem; color: rgba(255,255,255,.55); }
.footer-nav { display: flex; gap: 26px; flex-wrap: wrap; align-items: flex-start; }
.footer-nav a { font-size: .93rem; color: rgba(255,255,255,.7); }
.footer-nav a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 24px; font-size: .84rem; color: rgba(255,255,255,.45); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-card { position: static; }
  .cards, .feature-grid, .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .brand-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch;
    gap: 0; background: var(--white); border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px; transform: translateY(-140%); transition: transform .3s ease; box-shadow: var(--shadow);
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .nav .nav-cta { text-align: center; margin-top: 12px; border-bottom: 0; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
  .cards, .feature-grid, .brand-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; gap: 24px; }
}

@media (max-width: 460px) {
  .section { padding: 64px 0; }
  .hero { padding: 72px 0 64px; }
  .brand-grid, .contact-cards { grid-template-columns: 1fr 1fr; }
}