/* ===== Titan Help Center (Match main look & feel) ===== */

:root{
  --bg: #f6f7fb;
  --card: #ffffff;
  --border: rgba(15, 23, 42, 0.10);
  --text: #0f172a;
  --muted: #475569;
  --muted2: #64748b;

  --brand: #1f3a8a;
  --brand2: #1e40af;

  --radius-lg: 18px;
  --radius-md: 14px;

  --shadow: 0 18px 55px rgba(2, 6, 23, 0.08);
  --shadow-soft: 0 10px 30px rgba(2, 6, 23, 0.06);
}

* { box-sizing: border-box; }

html, body{
  height: 100%;
}

body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1200px 500px at 50% -120px, rgba(37, 99, 235, 0.10), transparent 60%),
    radial-gradient(900px 400px at 20% 0px, rgba(168, 85, 247, 0.08), transparent 55%),
    var(--bg);
}

/* ===== Header ===== */
.site-header{
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner{
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand{
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo{
  height: 44px;
  width: auto;
  display: block;
}

.top-nav{
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-size: 14.8px;
  color: var(--muted);
}

.top-link{
  color: var(--muted);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 10px;
}

.top-link:hover{
  background: rgba(15, 23, 42, 0.04);
  color: var(--text);
}

.header-divider{
  height: 1px;
  background: rgba(15, 23, 42, 0.08);
}

/* ===== Language Dropdown ===== */
.lang{
  position: relative;
}

.lang-btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: 1px solid rgba(15, 23, 42, 0.16);
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14.8px;
  color: var(--text);
}

.lang-btn:hover{
  border-color: rgba(15, 23, 42, 0.24);
  box-shadow: 0 8px 18px rgba(2, 6, 23, 0.06);
}

.flag{
  font-size: 16px;
  line-height: 1;
}

.caret{
  opacity: 0.7;
}

.lang-menu{
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 190px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 14px;
  box-shadow: var(--shadow-soft);
  padding: 8px;
  display: none;
}

.lang-menu.open{
  display: block;
}

.lang-item{
  width: 100%;
  text-align: left;
  padding: 10px 10px;
  border-radius: 12px;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 14.6px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-item:hover{
  background: rgba(15, 23, 42, 0.05);
}

/* ===== Layout ===== */
.page{
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 22px 50px;
}

.hero{
  text-align: center;
  padding: 34px 0 18px;
}

.hero-title{
  margin: 0;
  font-size: 54px;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.hero-subtitle{
  margin: 10px 0 0;
  font-size: 18px;
  color: var(--muted);
}

/* ===== Start Card ===== */
.start-wrap{
  display: flex;
  justify-content: center;
  padding: 20px 0 36px;
}

.start-card{
  width: 100%;
  max-width: 860px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px 24px 18px;
}

.start-head{
  margin-bottom: 18px;
}

.start-title{
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.start-text{
  margin: 0;
  font-size: 16.5px;
  color: var(--muted);
  line-height: 1.55;
}

/* Mini cards */
.mini-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}

.mini-card{
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 14px;
  padding: 14px 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fff;
}

.mini-dot{
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 999px;
  background: rgba(30, 64, 175, 0.25);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.08);
}

.mini-content h3{
  margin: 0 0 6px;
  font-size: 16px;
}

.mini-content p{
  margin: 0;
  font-size: 14.8px;
  color: var(--muted);
  line-height: 1.45;
}

/* Actions */
.actions{
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  font-size: 14.8px;
  cursor: pointer;
  user-select: none;
}

.btn-primary{
  background: linear-gradient(180deg, #2a4cc6 0%, #1e3a8a 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgba(30, 58, 138, 0.22);
}

.btn-primary:hover{
  filter: brightness(1.03);
}

.btn-ghost{
  background: #fff;
  color: var(--text);
  border-color: rgba(15, 23, 42, 0.16);
}

.btn-ghost:hover{
  box-shadow: 0 10px 22px rgba(2, 6, 23, 0.08);
  border-color: rgba(15, 23, 42, 0.22);
}

.small-legal{
  margin: 12px 0 0;
  font-size: 13.8px;
  color: var(--muted2);
  line-height: 1.45;
}

/* ===== Info Cards ===== */
.info-cards{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 26px;
  margin-bottom: 32px;
}

.info-card{
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: var(--radius-md);
  padding: 18px 18px;
  box-shadow: 0 10px 25px rgba(2, 6, 23, 0.06);
}

.info-card h3{
  margin: 0 0 8px;
  font-size: 16.5px;
}

.info-card p{
  margin: 0;
  font-size: 14.8px;
  color: var(--muted);
  line-height: 1.5;
}

/* ===== Bottom Hint ===== */
.bottom{
  text-align: center;
  padding: 10px 0 42px;
}

.bubble{
  width: 12px;
  height: 12px;
  border-radius: 999px;
  margin: 0 auto 12px;
  background: rgba(168, 85, 247, 0.18);
  box-shadow: 0 0 0 6px rgba(168, 85, 247, 0.08);
}

.bottom-hint{
  margin: 0;
  font-size: 16px;
  color: var(--text);
}

/* ===== Footer ===== */
.site-footer{
  background: #fff;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.footer-inner{
  max-width: 1160px;
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.footer-right a{
  color: var(--muted);
  text-decoration: none;
}

.footer-right a:hover{
  color: var(--text);
}

.footer-dot{
  margin: 0 8px;
  opacity: 0.6;
}

/* ===== Responsive ===== */
@media (max-width: 940px){
  .hero-title{ font-size: 44px; }
  .start-card{ padding: 20px; }
  .info-cards{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .header-inner{ flex-direction: column; align-items: flex-start; }
  .top-nav{ flex-wrap: wrap; gap: 10px; }
  .mini-grid{ grid-template-columns: 1fr; }
  .hero{ padding-top: 26px; }
}