/* ===========================================================
   HoloLearn — Base / Design tokens dùng chung cho 5 landing page
   Font: Roboto · Icon: Font Awesome
   =========================================================== */

:root {
  /* Brand */
  --blue:        #2596be;
  --blue-deep:   #17627f;
  --blue-ink:    #0e3f52;
  --cyan:        #12c6e6;
  --cyan-soft:   #7fe3f2;
  --sky:         #e7f6fb;
  --sky-2:       #d3edf6;

  /* Bộ sưu tập */
  --ocean:  #2596be;
  --wild:   #e2662f;
  --meadow: #4caf2f;

  /* Warm accents */
  --sun:    #ffc24b;
  --sun-2:  #ffb020;
  --coral:  #ff7a59;

  /* Neutrals */
  --ink:      #14384a;
  --ink-soft: #4a6472;
  --line:     #e3ecf1;
  --cream:    #fff9f0;
  --paper:    #f8fafc;
  --white:    #ffffff;

  /* Type */
  --font: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Radius */
  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  --r-xl: 40px;
  --r-pill: 999px;

  /* Shadow */
  --sh-sm: 0 4px 14px rgba(14, 63, 82, .08);
  --sh-md: 0 14px 34px rgba(14, 63, 82, .12);
  --sh-lg: 0 30px 60px rgba(14, 63, 82, .18);
  --sh-blue: 0 18px 40px rgba(37, 150, 190, .30);

  /* Layout */
  --wrap: 1180px;
  --gutter: clamp(18px, 4vw, 48px);
}

*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
ul { list-style: none; padding: 0; }

h1, h2, h3, h4 { line-height: 1.12; font-weight: 900; letter-spacing: -.02em; }

/* Layout helpers */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.center { text-align: center; }

/* Eyebrow */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5em;
  font-weight: 800; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue); background: var(--sky);
  padding: .5em 1em; border-radius: var(--r-pill);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  font-weight: 800; font-size: 1.02rem; line-height: 1;
  padding: 1.05em 1.7em; border-radius: var(--r-pill);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}
.btn i { font-size: .95em; }
.btn-primary {
  background: var(--blue); color: #fff; box-shadow: var(--sh-blue);
}
.btn-primary:hover { background: var(--blue-deep); transform: translateY(-3px); }
.btn-sun { background: var(--sun); color: var(--blue-ink); box-shadow: 0 14px 30px rgba(255,176,32,.36); }
.btn-sun:hover { background: var(--sun-2); transform: translateY(-3px); }
.btn-ghost {
  background: #fff; color: var(--blue-deep);
  box-shadow: inset 0 0 0 2px var(--sky-2), var(--sh-sm);
}
.btn-ghost:hover { box-shadow: inset 0 0 0 2px var(--blue); transform: translateY(-3px); }
.btn-lg { font-size: 1.1rem; padding: 1.15em 2em; }

/* Focus */
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

/* Section rhythm */
.section { padding-block: clamp(56px, 8vw, 110px); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* ===========================================================
   .wc — Khối "nội dung chi tiết" dùng chung cho các landing page
   (bám 100% nội dung file Word). Đổi màu qua biến --acc.
   =========================================================== */
.wc { --acc: var(--blue); --acc-soft:#eaf4f9; color: var(--ink); }
.wc .wc-sec { padding-block: clamp(48px, 7vw, 92px); }
.wc .wrap { width:100%; max-width: var(--wrap); margin-inline:auto; padding-inline: var(--gutter); }
.wc .wc-head { max-width: 640px; margin: 0 auto clamp(28px,4vw,44px); text-align:center; }
.wc .wc-eb { display:inline-flex; align-items:center; gap:.5em; color: var(--acc); font-weight:900; text-transform:uppercase; letter-spacing:.12em; font-size:.82rem; }
.wc .wc-head h2 { font-size: clamp(1.7rem,3.4vw,2.5rem); color: var(--ink); margin-top:.5rem; }
.wc .wc-head p { color: var(--ink-soft); margin-top:.7rem; }

/* product + spec table */
.wc-prod { display:grid; grid-template-columns: 1fr 1.1fr; gap: clamp(24px,4vw,52px); align-items:center; }
.wc-prod .shot { display:grid; grid-template-columns:repeat(3,1fr); gap:.7rem; background: var(--acc-soft); padding:1.2rem; border-radius: var(--r-lg); }
.wc-prod .shot img { border-radius:12px; border:3px solid #fff; box-shadow: var(--sh-sm); }
.wc-prod h3 { font-size: clamp(1.5rem,2.6vw,2rem); color: var(--ink); }
.wc-prod .desc { color: var(--ink-soft); margin-top:.7rem; }
.spec-table { width:100%; border-collapse:collapse; margin-top:1.2rem; border-radius:14px; overflow:hidden; box-shadow: var(--sh-sm); }
.spec-table th, .spec-table td { text-align:left; padding:.7rem 1rem; font-size:.95rem; border-bottom:1px solid var(--line); }
.spec-table th { background: var(--acc); color:#fff; font-weight:800; width:42%; }
.spec-table tr:nth-child(even) td { background:#f7fafc; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom:0; }
.spec-note { color: var(--ink-soft); font-size:.85rem; margin-top:.9rem; font-style:italic; }
.wc-price { display:flex; align-items:baseline; gap:.5rem; margin:1.1rem 0; }
.wc-price b { font-size:2rem; font-weight:900; color:#ff7a59; }

/* benefits 2 cols */
.wc-ben { display:grid; grid-template-columns:1fr 1fr; gap:1.4rem; }
.wc-ben .col { background:#fff; border:1px solid var(--line); border-radius: var(--r-lg); padding:1.8rem; box-shadow: var(--sh-sm); }
.wc-ben .col h3 { color: var(--acc); font-size:1.2rem; display:flex; align-items:center; gap:.6rem; }
.wc-ben ul { margin-top:1rem; display:grid; gap:.7rem; }
.wc-ben li { display:flex; gap:.7rem; color: var(--ink-soft); }
.wc-ben li i { color: var(--acc); margin-top:.25rem; }

/* how steps */
.wc-steps { display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem; }
.wc-step { text-align:center; background:#fff; border:1px solid var(--line); border-radius: var(--r-lg); padding:1.8rem 1.2rem; box-shadow: var(--sh-sm); }
.wc-step .n { width:46px;height:46px;margin:0 auto .8rem; border-radius:50%; background: var(--acc); color:#fff; font-weight:900; display:grid;place-items:center; }
.wc-step h3 { color: var(--ink); font-size:1.08rem; } .wc-step p { color: var(--ink-soft); font-size:.92rem; margin-top:.4rem; }

/* notes */
.wc-notes { background: var(--acc-soft); border-radius: var(--r-lg); padding: clamp(20px,3vw,36px); }
.wc-notes h3 { color: var(--ink); font-size:1.2rem; display:flex; align-items:center; gap:.6rem; }
.wc-notes ul { margin-top:1rem; display:grid; gap:.7rem; }
.wc-notes li { display:flex; gap:.7rem; color: var(--ink-soft); }
.wc-notes li i { color: var(--acc); margin-top:.2rem; }

/* parent cards */
.wc-par { display:grid; grid-template-columns:repeat(3,1fr); gap:1.3rem; }
.wc-par .p { background:#fff; border:1px solid var(--line); border-radius: var(--r-lg); padding:1.8rem; box-shadow: var(--sh-sm); }
.wc-par .p .ic { width:56px;height:56px;border-radius:16px; background: var(--acc); color:#fff; display:grid;place-items:center; font-size:1.4rem; margin-bottom:.9rem; }
.wc-par .p h3 { color: var(--ink); font-size:1.12rem; } .wc-par .p p { color: var(--ink-soft); margin-top:.4rem; font-size:.94rem; }
.wc-disc { text-align:center; color: var(--ink-soft); font-size:.85rem; max-width:60ch; margin:1.6rem auto 0; }

/* about story + vision/mission */
.wc-about { display:grid; grid-template-columns:1fr 1fr; gap: clamp(24px,4vw,52px); align-items:start; }
.wc-about .story p { color: var(--ink-soft); margin-top:.9rem; }
.wc-vm { display:grid; gap:1.2rem; }
.wc-vm .card { border-radius: var(--r-lg); padding:1.6rem 1.8rem; }
.wc-vm .card.v { background: var(--acc-soft); } .wc-vm .card.m { background:#fff4e6; }
.wc-vm .card h3 { color: var(--ink); font-size:1.3rem; display:flex; align-items:center; gap:.6rem; }
.wc-vm .card.v h3 { color: var(--acc); } .wc-vm .card.m h3 { color:#d98a1f; }
.wc-vm .card p { color: var(--ink-soft); margin-top:.5rem; }

/* values */
.wc-val { display:grid; grid-template-columns:repeat(4,1fr); gap:1.2rem; }
.wc-val .v { background:#fff; border:1px solid var(--line); border-radius: var(--r-lg); padding:1.8rem 1.3rem; text-align:center; box-shadow: var(--sh-sm); }
.wc-val .v .ic { width:64px;height:64px;margin:0 auto .8rem; border-radius:50%; background: var(--acc); color:#fff; display:grid;place-items:center; font-size:1.5rem; }
.wc-val .v h3 { color: var(--ink); font-size:1.12rem; } .wc-val .v p { color: var(--ink-soft); font-size:.92rem; margin-top:.4rem; }

/* brand message */
.wc-msg { text-align:center; background: var(--acc); border-radius: var(--r-xl); padding: clamp(32px,5vw,56px); color:#fff; }
.wc-msg h2 { font-size: clamp(1.8rem,3.6vw,2.8rem); max-width:20ch; margin:0 auto; }
.wc-msg p { opacity:.92; max-width:52ch; margin:1rem auto 0; }

/* partnership + goals + contact */
.wc-part { display:grid; grid-template-columns:1fr 1fr; gap:1.4rem; }
.wc-part .box { background:#fff; border:1px solid var(--line); border-radius: var(--r-lg); padding:1.8rem; box-shadow: var(--sh-sm); }
.wc-part .box h3 { color: var(--acc); font-size:1.2rem; display:flex; align-items:center; gap:.6rem; }
.wc-part .box p { color: var(--ink-soft); margin-top:.7rem; }
.wc-part ul { margin-top:.9rem; display:grid; gap:.6rem; }
.wc-part li { display:flex; gap:.7rem; color: var(--ink-soft); } .wc-part li i { color: var(--acc); margin-top:.2rem; }
.wc-contact { display:flex; flex-wrap:wrap; gap:1rem; margin-top:1rem; }
.wc-contact a { display:flex; align-items:center; gap:.6rem; font-weight:700; color: var(--acc); }

@media (max-width: 900px){
  .wc-prod, .wc-about, .wc-part { grid-template-columns:1fr; }
  .wc-ben { grid-template-columns:1fr; }
  .wc-steps, .wc-val { grid-template-columns:repeat(2,1fr); }
  .wc-par { grid-template-columns:1fr; }
}
@media (max-width: 560px){
  .wc-steps, .wc-val, .wc-prod .shot { grid-template-columns:repeat(2,1fr); }
}