/* Dezon — landing page Đối tác (for Studio / for Supplier)
   Dựng từ Studio.pdf + Supplier.pdf (support@dezon.vn, 2026-07-10). Feedback slide 3. */

:root {
  --blue: #094bf4;
  --ink: #101114;
  --muted: #5f6672;
  --line: #e6e8eb;
  --soft: #f6f7f9;
  --dark: #0b0c0e;
  --radius: 12px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------- topbar ---------- */
.topbar { background: var(--dark); color: #fff; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand .logo { font-weight: 800; letter-spacing: .06em; font-size: 18px; }
.brand .kicker { font-size: 13px; color: #b9bdc6; }
.topnav { display: flex; gap: 14px; font-size: 13px; color: #b9bdc6; }
.topnav a { text-decoration: none; }
.topnav a.is-active { color: #fff; font-weight: 600; }
.topnav a:hover { color: #fff; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 999px;
  background: var(--blue); color: #fff; text-decoration: none;
  font-size: 14px; font-weight: 600; border: 1px solid var(--blue);
}
.btn:hover { filter: brightness(1.08); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--onDark { background: var(--blue); border-color: var(--blue); }
.btn--outline { background: #fff; color: var(--ink); border-color: var(--line); }

/* ---------- sections ---------- */
section { padding: 72px 0; }
.section--soft { background: var(--soft); }
.section--dark { background: var(--dark); color: #fff; }
.section--dark .lead, .section--dark p { color: #c3c7cf; }

.tag {
  display: inline-block; font-size: 12px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; margin-bottom: 18px;
}
h1 { font-size: clamp(28px, 3.4vw, 40px); line-height: 1.28; margin: 0 0 18px; font-weight: 700; }
h1 .accent { color: var(--blue); }
h2 { font-size: clamp(24px, 2.6vw, 32px); line-height: 1.3; margin: 0 0 16px; font-weight: 700; }
h3 { font-size: 18px; margin: 0 0 8px; font-weight: 700; }
h4 { font-size: 15px; margin: 0 0 6px; font-weight: 700; }
.lead { color: var(--muted); font-size: 16px; margin: 0 0 10px; }
.center { text-align: center; }
.center .lead { max-width: 760px; margin-left: auto; margin-right: auto; }

/* ---------- hero ---------- */
.hero { padding: 84px 0 64px; text-align: center; }
.hero .cta { margin-top: 26px; }

/* ---------- grids ---------- */
.grid { display: grid; gap: 32px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: 1fr 1fr; align-items: start; gap: 48px; }

.feature h3 { margin-bottom: 12px; }
.feature ul { margin: 0; padding: 0; list-style: none; }
.feature li { color: var(--muted); font-size: 14px; padding: 4px 0; }

.statement { font-size: clamp(18px, 2vw, 24px); font-weight: 600; line-height: 1.5; max-width: 860px; margin: 0 auto; text-align: center; }

/* ---------- icon cards ---------- */
.icard .ico {
  width: 36px; height: 36px; border-radius: 8px; margin-bottom: 14px;
  background: rgba(9, 75, 244, .1); color: var(--blue);
  display: grid; place-items: center; font-size: 16px; font-weight: 700;
}
.section--dark .icard .ico { background: rgba(255,255,255,.1); color: #fff; }
.icard p { font-size: 14px; color: var(--muted); margin: 0; }

/* ---------- ảnh chụp giao diện thật ---------- */
.shot { margin: 0; }
.shot a { display: block; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--soft); }
.shot img {
  width: 100%; height: auto; max-height: 560px;
  object-fit: cover; object-position: top center; /* giữ header + bộ lọc, cắt phần dưới */
}
.shot figcaption { font-size: 13px; color: var(--muted); margin-top: 10px; text-align: center; }

/* ---------- panel (thay ảnh mockup) ---------- */
.panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--soft); padding: 28px; }
.panel ul { margin: 0; padding-left: 18px; }
.panel li { font-size: 14px; color: var(--muted); padding: 5px 0; }

.block + .block { margin-top: 28px; }
.block ul { margin: 8px 0 0; padding-left: 18px; }
.block li { font-size: 14px; color: var(--muted); padding: 3px 0; }

/* ---------- pricing / partner tiers ---------- */
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.tier { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; background: #fff; }
.tier--hi { border-color: var(--blue); box-shadow: 0 8px 30px rgba(9,75,244,.08); }
.tier .name { font-size: 17px; font-weight: 700; }
.tier .en { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.tier .desc { font-size: 13px; color: var(--muted); min-height: 62px; }
.tier .btn { width: 100%; text-align: center; margin: 14px 0 18px; }
.tier .inherit { font-size: 12px; color: var(--muted); font-style: italic; margin-bottom: 14px; }
.tier .perk { display: flex; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); }
.tier .perk:first-of-type { border-top: 0; }
.tier .check { color: var(--blue); font-weight: 700; line-height: 1.4; }
.tier .perk p { margin: 2px 0 0; font-size: 13px; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 0; font-size: 15px; font-weight: 600;
  display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "⌄"; color: var(--muted); }
.faq details[open] summary::after { content: "⌃"; }
.faq .ans { padding: 0 0 18px; color: var(--muted); font-size: 14px; }
.faq .ans ul { margin: 8px 0 0; padding-left: 18px; }
.faq .todo { color: #a06000; background: #fff8e6; border: 1px solid #ffe2a8; border-radius: 8px; padding: 10px 12px; font-size: 13px; }

/* ---------- CTA band ---------- */
.cta-band { background: #a9c3f7; color: var(--ink); padding: 52px 0; text-align: center; }
.cta-band h2 { margin-bottom: 18px; }

/* ---------- mini footer ---------- */
.mini { background: var(--soft); padding: 48px 0; }
.mini .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.mini h4 { font-size: 14px; }
.mini p { font-size: 13px; color: var(--muted); margin: 0 0 8px; }
.mini a { font-size: 13px; color: var(--blue); text-decoration: none; font-weight: 600; }

/* ---------- footer ---------- */
.foot { background: var(--dark); color: #fff; padding: 56px 0 20px; }
.foot .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.foot h4 { color: #8f96a3; font-weight: 500; font-size: 13px; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { padding: 5px 0; }
.foot a { color: #e9ebef; text-decoration: none; font-size: 14px; }
.foot a:hover { color: #fff; }
.foot .tagline { color: #8f96a3; font-size: 13px; margin: 10px 0 4px; }
.foot .bar { border-top: 1px solid #23262b; margin-top: 36px; padding-top: 18px; color: #8f96a3; font-size: 12px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .grid-3, .tiers, .mini .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; gap: 28px; }
  .foot .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  section { padding: 52px 0; }
  .grid-3, .tiers, .mini .grid-4, .foot .cols { grid-template-columns: 1fr; }
  .topnav { display: none; }
  .tier .desc { min-height: 0; }
}