/* =========================================================
   chill-city — 全站樣式
   暗色 + 霓虹強調；對齊 easyCity 管理面板 design tokens
   ========================================================= */

:root {
  --bg: #0f1115;
  --bg-2: #13161d;
  --bg-card: #171a21;
  --bg-elev: #1c2029;
  --border: #262a33;
  --border-soft: #20242d;
  --text: #e6e8ee;
  --text-dim: #8a93a6;
  --text-faint: #5a6272;

  --accent: #6aa7ff;
  --accent-2: #a96aff;
  --accent-grad: linear-gradient(135deg, #6aa7ff 0%, #a96aff 100%);
  --accent-grad-soft: linear-gradient(135deg, rgba(106, 167, 255, .18) 0%, rgba(169, 106, 255, .18) 100%);

  --success: #3fb67a;
  --warn: #e0a94a;
  --danger: #e0504a;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;

  --shadow: 0 4px 24px rgba(0, 0, 0, .35);
  --shadow-glow: 0 0 40px rgba(106, 167, 255, .15);

  --font-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --t: .2s ease;

  --container: 1180px;
  --nav-h: 64px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: color var(--t); }
a:hover { color: #9cc3ff; }

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.2;
  color: var(--text);
}
p { margin: 0 0 1em; }
ul { list-style: none; padding: 0; margin: 0; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

.skip-link {
  position: absolute; top: -100px; left: 12px;
  background: var(--accent); color: #0b1020;
  padding: 10px 14px; border-radius: var(--radius);
  font-weight: 700; z-index: 1000;
}
.skip-link:focus { top: 12px; }

.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }

/* ---------- Section 基底 ---------- */
.section { padding: 96px 0; position: relative; }
.section-alt { background: var(--bg-2); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); }
.eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent);
  padding: 4px 10px;
  background: rgba(106, 167, 255, .1);
  border: 1px solid rgba(106, 167, 255, .25);
  border-radius: 999px;
  margin: 0 0 14px;
}
.lead { color: var(--text-dim); font-size: 17px; }
.gradient-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 700; font-size: 14px;
  border: 1px solid transparent;
  transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t), color var(--t);
  white-space: nowrap; cursor: pointer; text-decoration: none;
}
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-lg { padding: 14px 26px; font-size: 15px; }
.btn-xl { padding: 18px 34px; font-size: 17px; border-radius: 12px; }

.btn-primary {
  background: var(--accent-grad);
  color: #0b1020;
  box-shadow: 0 8px 30px rgba(106, 167, 255, .25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(106, 167, 255, .35); color: #0b1020; }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(15, 17, 21, .55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: background var(--t), border-color var(--t);
}
.nav.scrolled {
  background: rgba(15, 17, 21, .9);
  border-bottom-color: var(--border);
}
.nav-inner {
  height: 100%;
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text); font-weight: 800; font-size: 18px; letter-spacing: -.01em;
}
.brand:hover { color: var(--text); }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--accent-grad);
  box-shadow: 0 0 20px rgba(106, 167, 255, .4);
  position: relative;
}
.brand-mark::after {
  content: ''; position: absolute; inset: 5px;
  background: var(--bg); border-radius: 4px;
}
.nav-links {
  display: flex; align-items: center; gap: 28px;
}
.nav-links > a:not(.btn) {
  color: var(--text-dim); font-size: 14px; font-weight: 500;
  padding: 6px 0; position: relative;
}
.nav-links > a:not(.btn):hover { color: var(--text); }
.nav-links > a.active { color: var(--text); }
.nav-links > a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--accent-grad); border-radius: 2px;
}

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  padding: 10px;
  flex-direction: column; justify-content: space-between;
}
.nav-toggle span {
  display: block; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: clamp(620px, 88vh, 860px);
  padding: calc(var(--nav-h) + 80px) 0 80px;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1200px 600px at 10% 0%, rgba(106, 167, 255, .18), transparent 60%),
    radial-gradient(900px 500px at 90% 20%, rgba(169, 106, 255, .18), transparent 60%),
    radial-gradient(800px 600px at 50% 100%, rgba(106, 167, 255, .1), transparent 70%),
    linear-gradient(180deg, #0b0d12 0%, #0f1115 100%);
}
.hero-bg::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.hero-inner {
  position: relative; z-index: 1;
  width: min(100% - 32px, var(--container));
  text-align: center;
}
.hero-title {
  font-size: clamp(36px, 6.5vw, 68px);
  line-height: 1.1;
  margin: 14px auto 20px;
  max-width: 14ch;
}
.hero-sub {
  color: var(--text-dim); font-size: clamp(15px, 1.8vw, 19px);
  max-width: 640px; margin: 0 auto 36px;
}
.hero-cta { display: inline-flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

.hero-scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--text-faint); border-radius: 13px;
  display: flex; justify-content: center; padding-top: 8px;
}
.hero-scroll span {
  width: 3px; height: 8px; background: var(--text-dim); border-radius: 2px;
  animation: scrollHint 1.6s infinite;
}
@keyframes scrollHint {
  0%   { opacity: 0; transform: translateY(-6px); }
  40%  { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(12px); }
}

/* ---------- ABOUT: pillars ---------- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}
.pillar-card:hover {
  border-color: rgba(106, 167, 255, .45);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}
.pillar-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--accent-grad-soft);
  color: var(--accent);
  display: grid; place-items: center;
  margin-bottom: 18px;
}
.pillar-icon svg { width: 22px; height: 22px; }
.pillar-card h3 { font-size: 20px; }
.pillar-card p { color: var(--text-dim); margin: 0; }

/* ---------- GAMEPLAY: feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  position: relative; overflow: hidden;
  transition: border-color var(--t), transform var(--t);
}
.feature-card:hover { border-color: rgba(169, 106, 255, .45); transform: translateY(-3px); }
.feature-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(106, 167, 255, .06), transparent 50%);
  pointer-events: none;
}
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center; margin-bottom: 18px;
}
.feature-icon svg { width: 24px; height: 24px; }
.accent-blue   { background: rgba(106, 167, 255, .15); color: #6aa7ff; }
.accent-purple { background: rgba(169, 106, 255, .15); color: #a96aff; }
.accent-green  { background: rgba(63, 182, 122, .15); color: var(--success); }
.accent-warn   { background: rgba(224, 169, 74, .15); color: var(--warn); }

.feature-card h3 { font-size: 19px; }
.feature-card p { color: var(--text-dim); margin: 0; font-size: 14.5px; }

/* ---------- SPLIT: vehicles / clothing ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split-reverse .split-text { order: 1; }
.split-reverse .split-media { order: 2; }
.split-text h2 { font-size: clamp(28px, 3.4vw, 40px); }
.bullet-list { display: grid; gap: 18px; margin-top: 22px; }
.bullet-list li {
  padding-left: 30px; position: relative;
}
.bullet-list li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent-grad);
  box-shadow: 0 0 12px rgba(106, 167, 255, .4);
}
.bullet-list li::after {
  content: ''; position: absolute; left: 5px; top: 13px;
  width: 8px; height: 4px;
  border-left: 2px solid #0b1020; border-bottom: 2px solid #0b1020;
  transform: rotate(-45deg);
}
.bullet-list strong { display: block; font-size: 17px; margin-bottom: 2px; }
.bullet-list span { color: var(--text-dim); font-size: 14.5px; }

.img-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.img-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(106, 167, 255, .08), rgba(169, 106, 255, .08)),
    var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform var(--t), border-color var(--t);
}
.img-placeholder:hover { transform: scale(1.02); border-color: var(--accent); }
.img-placeholder::before {
  content: attr(data-label);
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--text-faint); font-weight: 600; font-size: 14px;
  letter-spacing: .05em;
}
.img-placeholder::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: .6;
}

/* ---------- NEWBIE: perks ---------- */
.perk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.perk-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: transform var(--t), border-color var(--t);
}
.perk-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.perk-emoji { font-size: 36px; display: inline-block; margin-bottom: 8px; }
.perk-card h3 { font-size: 18px; }
.perk-card p { color: var(--text-dim); margin: 0; font-size: 14.5px; }

/* ---------- TEAM: staff cards ---------- */
.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}
.staff-card {
  display: flex; align-items: center; gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
  text-decoration: none; color: inherit;
}
a.staff-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow-glow); }
.staff-avatar {
  position: relative;
  width: 80px; height: 80px; flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-elev);
  overflow: hidden;
  border: 2px solid var(--border);
}
.staff-avatar img { width: 100%; height: 100%; object-fit: cover; }
.staff-status-dot {
  position: absolute; right: -2px; bottom: -2px;
  width: 22px; height: 22px; border-radius: 50%;
  border: 3px solid var(--bg-card);
  background: var(--text-faint);
}
.staff-status-dot.online { background: var(--success); }
.staff-status-dot.idle { background: var(--warn); }
.staff-status-dot.dnd { background: var(--danger); }
.staff-status-dot.offline { background: var(--text-faint); }

.staff-body { min-width: 0; flex: 1; }
.staff-role {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent);
  padding: 3px 9px;
  background: rgba(106, 167, 255, .1);
  border: 1px solid rgba(106, 167, 255, .25);
  border-radius: 999px;
  margin-bottom: 8px;
}
.staff-name { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.staff-activity {
  color: var(--text-dim); font-size: 13px;
  display: flex; align-items: center; gap: 6px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.staff-activity .activity-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  background: var(--success);
}

.staff-hint {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 18px;
  color: var(--text-dim); font-size: 13px;
  margin: 28px 0 0;
}
.staff-hint .dot {
  display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  margin-right: 6px; vertical-align: middle;
}
.dot-online { background: var(--success); }
.dot-idle { background: var(--warn); }
.dot-dnd { background: var(--danger); }
.dot-offline { background: var(--text-faint); }

/* ---------- Skeleton loading ---------- */
.skeleton, .skeleton-text {
  background: linear-gradient(90deg, #1c2029 0%, #262a33 50%, #1c2029 100%);
  background-size: 200% 100%;
  animation: skeleton 1.4s ease-in-out infinite;
  border-radius: 6px;
}
.skeleton-text { height: 14px; margin: 6px 0; }
.staff-loading .staff-name { width: 140px; height: 20px; }
.staff-loading .staff-activity { width: 180px; height: 14px; }
@keyframes skeleton {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- CTA ---------- */
.cta {
  padding: 120px 0;
  background:
    radial-gradient(800px 400px at 50% 50%, rgba(106, 167, 255, .15), transparent 70%),
    var(--bg-2);
  text-align: center;
}
.cta-inner { max-width: 720px; }
.cta h2 { font-size: clamp(30px, 4.5vw, 48px); }
.cta-quote {
  margin-top: 28px;
  font-size: 18px; color: var(--text-dim);
  font-style: italic;
}

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer-brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700;
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-dim); font-size: 14px; }
.footer-links a:hover { color: var(--text); }
.footer-copy { color: var(--text-faint); font-size: 13px; margin: 0; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .section { padding: 72px 0; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .split-reverse .split-text, .split-reverse .split-media { order: initial; }

  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    flex-direction: column; align-items: stretch;
    padding: 24px;
    background: rgba(15, 17, 21, .98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    gap: 0;
    transform: translateY(-8px);
    opacity: 0; pointer-events: none;
    transition: opacity var(--t), transform var(--t);
    border-top: 1px solid var(--border);
  }
  .nav-links.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links > a:not(.btn) {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    font-size: 16px;
  }
  .nav-links > a.btn { margin-top: 20px; justify-content: center; }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { min-height: 600px; padding-top: calc(var(--nav-h) + 60px); }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .staff-card { flex-direction: column; text-align: center; }
  .staff-activity { justify-content: center; }
  .img-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; text-align: center; }
  .btn-xl { padding: 14px 24px; font-size: 15px; }
  .cta { padding: 80px 0; }
}