/* ============================================================
   TactIQ 看球帮 — Official Site (shared styles)
   Aesthetic: bright, fresh "AI football intelligence"
   white canvas · emerald→cyan brand gradient · bold editorial type
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=Anton&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;700;900&display=swap');

:root {
  /* surfaces */
  --bg:        #FBFCFC;
  --bg-tint:   #F0F8F4;   /* soft mint wash */
  --surface:   #FFFFFF;
  --surface-2: #F4F8F6;
  --line:      rgba(13, 38, 28, 0.09);
  --line-2:    rgba(13, 38, 28, 0.16);

  /* brand gradient (from logo: emerald → teal → cyan) */
  --g1: #14C98C;
  --g2: #16BEC2;
  --g3: #2FAEE6;
  --grad:  linear-gradient(102deg, var(--g1) 0%, var(--g2) 48%, var(--g3) 100%);
  --grad-soft: linear-gradient(102deg, rgba(20,201,140,0.14), rgba(47,174,230,0.14));

  --pitch:     #10B981;   /* solid accent green */
  --pitch-ink: #047857;
  --cyan:      #2FAEE6;
  --gold:      #E0A93A;    /* VIP */

  /* ink */
  --ink:       #0C1714;
  --ink-soft:  #38463F;
  --muted:     #6A7771;
  --muted-2:   #9BA7A1;

  /* type */
  --f-display: 'Archivo', 'Noto Sans SC', system-ui, sans-serif;
  --f-stat:    'Anton', 'Archivo', sans-serif;
  --f-body:    'Manrope', 'Noto Sans SC', system-ui, sans-serif;

  /* layout */
  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 18px;
  --radius-lg: 28px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --shadow-card: 0 1px 2px rgba(13,38,28,0.04), 0 18px 40px -24px rgba(13,38,28,0.22);
  --shadow-phone: 0 50px 90px -36px rgba(10,40,30,0.4), 0 0 0 1px rgba(13,38,28,0.04);
}

/* ---------- reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-weight: 400; line-height: 1.6; letter-spacing: 0.005em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
::selection { background: rgba(20,201,140,0.22); color: var(--ink); }

/* ---------- gradient text util ---------- */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--f-display); font-weight: 800; font-size: 0.74rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--pitch-ink);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--grad); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--f-display); font-weight: 700; font-size: 0.95rem;
  padding: 0.92em 1.55em; border-radius: 999px;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), background 0.3s, color 0.3s;
  white-space: nowrap;
}
.btn svg { width: 1.2em; height: 1.2em; }
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 10px 26px -10px rgba(20,180,150,0.7);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 34px -8px rgba(20,180,150,0.85); }
.btn-ghost { background: var(--surface); color: var(--ink); border: 1px solid var(--line-2); }
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--pitch); color: var(--pitch-ink); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { transform: translateY(-3px); box-shadow: 0 14px 30px -12px rgba(12,23,20,0.5); }

/* ============================================================
   NAV
   ============================================================ */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background 0.4s, border-color 0.4s; border-bottom: 1px solid transparent; }
.nav.scrolled {
  background: rgba(251, 252, 252, 0.82);
  -webkit-backdrop-filter: blur(18px) saturate(150%); backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav-inner { max-width: var(--maxw); margin-inline: auto; padding: 16px var(--gutter); display: flex; align-items: center; justify-content: space-between; transition: padding 0.4s; }
.nav.scrolled .nav-inner { padding-top: 11px; padding-bottom: 11px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--f-display); font-weight: 900; font-size: 1.18rem; letter-spacing: -0.01em; }
.brand .mark { width: 36px; height: 36px; border-radius: 11px; flex-shrink: 0; box-shadow: 0 6px 16px -6px rgba(20,180,150,0.6); overflow: hidden; }
.brand .mark img { width: 100%; height: 100%; object-fit: cover; }
.brand .sub { font-family: var(--f-body); font-weight: 500; font-size: 0.92rem; color: var(--muted); letter-spacing: 0; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.92rem; font-weight: 600; color: var(--ink-soft); position: relative; transition: color 0.25s; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0; background: var(--grad); transition: width 0.3s var(--ease); }
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* language selector (dropdown) */
.lang-select { position: relative; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--f-display); font-weight: 700; font-size: 0.86rem;
  color: var(--ink-soft);
  padding: 0.5em 0.8em; border-radius: 999px;
  border: 1px solid var(--line-2); background: var(--surface);
  transition: border-color 0.25s, color 0.25s, transform 0.25s var(--ease);
}
.lang-btn > svg:first-child { width: 1.05em; height: 1.05em; opacity: 0.8; }
.lang-btn .chev { width: 0.85em; height: 0.85em; opacity: 0.6; transition: transform 0.3s var(--ease); }
.lang-select.open .lang-btn .chev { transform: rotate(180deg); }
.lang-btn:hover { border-color: var(--pitch); color: var(--pitch-ink); transform: translateY(-1px); }
.lang-btn [data-lang-current] { min-width: 2.5em; text-align: left; }

.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; z-index: 120;
  min-width: 168px; padding: 7px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow-card);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(0.97);
  transform-origin: top right;
  transition: opacity 0.2s var(--ease), transform 0.25s var(--ease), visibility 0.2s;
}
.lang-select.open .lang-menu { opacity: 1; visibility: visible; transform: none; }
.lang-menu li {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 9px 12px; border-radius: 10px; cursor: pointer;
  font-size: 0.92rem; font-weight: 600; color: var(--ink-soft);
  transition: background 0.2s, color 0.2s;
}
.lang-menu li:hover { background: var(--surface-2); color: var(--ink); }
.lang-menu li.active { color: var(--pitch-ink); background: var(--grad-soft); }
.lang-menu li .tick { width: 1em; height: 1em; opacity: 0; color: var(--pitch-ink); }
.lang-menu li.active .tick { opacity: 1; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta .btn { padding: 0.66em 1.1em; font-size: 0.86rem; }
  .lang-btn { padding: 0.5em 0.7em; }
}
@media (max-width: 380px) { .brand .sub { display: none; } .lang-btn [data-lang-current] { display: none; } }

/* ============================================================
   FOOTER (shared)
   ============================================================ */
.footer { border-top: 1px solid var(--line); background: var(--bg-tint); margin-top: 0; position: relative; overflow: hidden; }
.footer-inner { max-width: var(--maxw); margin-inline: auto; padding: 64px var(--gutter) 40px; display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 40px; position: relative; }
.footer-brand .brand { font-size: 1.35rem; margin-bottom: 16px; }
.footer-brand p { color: var(--muted); font-size: 0.9rem; max-width: 32ch; }
.footer-col h4 { font-family: var(--f-display); font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--ink-soft); font-size: 0.92rem; padding: 6px 0; transition: color 0.25s, padding-left 0.25s; }
.footer-col a:hover { color: var(--pitch-ink); padding-left: 5px; }
.footer-bottom { max-width: var(--maxw); margin-inline: auto; padding: 22px var(--gutter); border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: 0.84rem; position: relative; }
.footer-bottom .dot { color: var(--pitch); }

@media (max-width: 760px) { .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px 24px; } .footer-brand { grid-column: 1 / -1; } }

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal-hero { padding: 150px var(--gutter) 46px; max-width: var(--maxw); margin-inline: auto; position: relative; }
.legal-hero::after { content: ""; position: absolute; left: var(--gutter); right: var(--gutter); bottom: 0; height: 2px; background: var(--grad); border-radius: 2px; opacity: 0.7; }
.legal-hero .eyebrow { margin-bottom: 16px; }
.legal-hero h1 { font-family: var(--f-display); font-weight: 900; font-size: clamp(2.2rem, 6vw, 3.6rem); line-height: 1.02; letter-spacing: -0.025em; margin-bottom: 14px; }
.legal-hero .meta { color: var(--muted); font-size: 0.9rem; }
.legal-hero .meta b { color: var(--ink-soft); font-weight: 600; }

.legal-body { max-width: 1080px; margin-inline: auto; padding: 46px var(--gutter) 80px; display: grid; grid-template-columns: 240px 1fr; gap: 56px; align-items: start; }
.legal-toc { position: sticky; top: 100px; border-left: 2px solid var(--line); padding-left: 0; }
.legal-toc h4 { font-family: var(--f-display); font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 14px; padding-left: 20px; }
.legal-toc a { display: block; color: var(--muted); font-size: 0.88rem; padding: 7px 0 7px 20px; transition: color 0.2s, border-color 0.2s; border-left: 2px solid transparent; margin-left: -2px; }
.legal-toc a:hover, .legal-toc a.active { color: var(--pitch-ink); border-left-color: var(--pitch); font-weight: 600; }

.legal-content { font-size: 1rem; color: var(--ink-soft); line-height: 1.85; }
.legal-content section { scroll-margin-top: 100px; margin-bottom: 46px; }
.legal-content h2 { font-family: var(--f-display); font-weight: 800; color: var(--ink); font-size: 1.45rem; letter-spacing: -0.01em; margin-bottom: 16px; display: flex; align-items: baseline; gap: 14px; }
.legal-content h2 .num { font-family: var(--f-stat); font-size: 1.15rem; }
.legal-content h3 { font-family: var(--f-display); font-weight: 700; color: var(--ink); font-size: 1.06rem; margin: 24px 0 10px; }
.legal-content p { margin-bottom: 14px; }
.legal-content ul.bullets { margin: 6px 0 16px; }
.legal-content ul.bullets li { position: relative; padding-left: 24px; margin-bottom: 10px; }
.legal-content ul.bullets li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg); background: var(--grad); }
.legal-content strong { color: var(--ink); font-weight: 700; }
.legal-content a.inline { color: var(--pitch-ink); border-bottom: 1px solid rgba(16,185,129,0.4); }
.legal-note { margin-top: 8px; padding: 20px 22px; border-radius: var(--radius); background: var(--bg-tint); border: 1px solid var(--line); font-size: 0.92rem; color: var(--muted); }
.legal-note b { color: var(--ink-soft); }

@media (max-width: 820px) { .legal-body { grid-template-columns: 1fr; gap: 0; } .legal-toc { display: none; } }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; } .reveal { opacity: 1; transform: none; } }