/* OLENRI GOLD CLUB — premium deep-blue + gold design system.
   Deliberately a distinct sub-brand look from olenri.com (which uses a
   neutral black/white + iOS-blue accent) — GOLD CLUB is positioned as an
   exclusive members' room, not the main product. Shared by every page. */

:root {
  --gc-bg: #070B1A;
  --gc-bg-elev: #0C122A;
  --gc-bg-card: #0F1730;
  --gc-line: rgba(212, 175, 55, 0.18);
  --gc-line-strong: rgba(212, 175, 55, 0.35);
  --gc-text: #F3F1EA;
  --gc-text-2: #B9C0D4;
  --gc-text-3: #7B8296;
  --gc-gold: #D4AF37;
  --gc-gold-soft: rgba(212, 175, 55, 0.14);
  --gc-gold-bright: #F0D47A;
  --gc-blue-glow: rgba(74, 115, 219, 0.25);
  --radius-md: 14px;
  --radius-lg: 22px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--gc-bg);
  color: var(--gc-text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* ── Twinkling starfield (pure CSS, zero JS dependency, GPU-cheap) ───── */
.gc-stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(1px 1px at 10% 15%, #fff 0, transparent 60%),
    radial-gradient(1.5px 1.5px at 22% 60%, #fff 0, transparent 60%),
    radial-gradient(1px 1px at 35% 25%, #fff 0, transparent 60%),
    radial-gradient(1px 1px at 48% 75%, #fff 0, transparent 60%),
    radial-gradient(1.5px 1.5px at 60% 18%, #fff 0, transparent 60%),
    radial-gradient(1px 1px at 72% 55%, #fff 0, transparent 60%),
    radial-gradient(1px 1px at 85% 30%, #fff 0, transparent 60%),
    radial-gradient(1.5px 1.5px at 92% 68%, #fff 0, transparent 60%),
    radial-gradient(1px 1px at 15% 85%, #fff 0, transparent 60%),
    radial-gradient(1px 1px at 65% 90%, #fff 0, transparent 60%);
  opacity: 0.55;
  animation: gc-twinkle 5s ease-in-out infinite alternate;
}
.gc-stars.gc-stars-2 {
  background-position: 50px 80px, 10px 30px, 90px 10px, 120px 60px, 40px 90px,
    70px 40px, 20px 70px, 100px 20px, 60px 55px, 30px 15px;
  background-size: 180% 180%;
  animation-duration: 7s;
  animation-delay: 1.5s;
  opacity: 0.35;
}
@keyframes gc-twinkle {
  0% { opacity: 0.25; }
  50% { opacity: 0.65; }
  100% { opacity: 0.3; }
}
.gc-glow {
  position: fixed;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(90px);
}
.gc-glow-gold { top: -10%; right: -10%; width: 50vw; height: 50vw; background: var(--gc-blue-glow); opacity: 0.5; }
.gc-glow-blue { bottom: -15%; left: -10%; width: 55vw; height: 55vw; background: rgba(212,175,55,0.08); }

.gc-wrap { position: relative; z-index: 1; }

/* ── Header ───────────────────────────────────────────────────────── */
.gc-header {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1120px; margin: 0 auto; padding: 22px 24px;
}
.gc-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.gc-brand img { width: 30px; height: 30px; }
.gc-brand-text { font-size: 15px; font-weight: 700; letter-spacing: 2.5px; color: var(--gc-text); text-transform: uppercase; }
.gc-brand-text .gc-gold-word { color: var(--gc-gold); }
.gc-nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: 999px;
  border: 1px solid var(--gc-line-strong);
  color: var(--gc-gold-bright); text-decoration: none;
  font-size: 13px; font-weight: 600; letter-spacing: 0.3px;
  transition: all 0.25s ease;
  background: var(--gc-gold-soft);
}
.gc-nav-cta:hover { border-color: var(--gc-gold); background: rgba(212,175,55,0.22); }

/* ── Hero ─────────────────────────────────────────────────────────── */
.gc-hero { max-width: 880px; margin: 0 auto; padding: 56px 24px 40px; text-align: center; }
.gc-kicker {
  display: inline-block; font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--gc-gold); border: 1px solid var(--gc-line-strong); border-radius: 999px;
  padding: 6px 16px; margin-bottom: 26px; background: var(--gc-gold-soft);
}
.gc-hero h1 {
  font-size: clamp(32px, 5.5vw, 54px); line-height: 1.12; font-weight: 700;
  margin: 0 0 20px; letter-spacing: -0.5px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--gc-text-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.gc-hero h1 .gc-gold-word {
  background: linear-gradient(180deg, var(--gc-gold-bright) 0%, var(--gc-gold) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.gc-hero p.gc-sub { font-size: 18px; line-height: 1.6; color: var(--gc-text-2); max-width: 620px; margin: 0 auto 36px; }
.gc-cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.gc-btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  padding: 15px 30px; border-radius: 999px; font-size: 15px; font-weight: 600;
  transition: all 0.25s ease; cursor: pointer; border: 1px solid transparent;
}
.gc-btn-primary {
  background: linear-gradient(135deg, var(--gc-gold-bright), var(--gc-gold));
  color: #1A1304; box-shadow: 0 8px 28px rgba(212,175,55,0.28);
}
.gc-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 34px rgba(212,175,55,0.38); }
.gc-btn-ghost { background: transparent; border-color: var(--gc-line-strong); color: var(--gc-text); }
.gc-btn-ghost:hover { border-color: var(--gc-gold); color: var(--gc-gold-bright); }

/* ── Sections ─────────────────────────────────────────────────────── */
.gc-section { max-width: 1120px; margin: 0 auto; padding: 50px 24px; }
.gc-section-title {
  font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--gc-gold); margin: 0 0 14px; text-align: center;
}
.gc-section-lede { text-align: center; color: var(--gc-text-2); font-size: 16px; max-width: 580px; margin: 0 auto 42px; }

.gc-benefits { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 20px; }
.gc-card {
  background: linear-gradient(180deg, var(--gc-bg-elev), var(--gc-bg-card));
  border: 1px solid var(--gc-line); border-radius: var(--radius-lg);
  padding: 26px; position: relative; overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.gc-card:hover { border-color: var(--gc-line-strong); transform: translateY(-2px); }
.gc-card-icon { font-size: 22px; margin-bottom: 14px; color: var(--gc-gold); }
.gc-card h3 { font-size: 16px; margin: 0 0 8px; color: var(--gc-text); }
.gc-card p { font-size: 14px; line-height: 1.55; color: var(--gc-text-2); margin: 0; }

.gc-reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.gc-reveal.gc-visible { opacity: 1; transform: translateY(0); }

/* ── Story teaser cards ───────────────────────────────────────────── */
.gc-stories-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 18px; }
.gc-story-card {
  background: var(--gc-bg-elev); border: 1px solid var(--gc-line); border-radius: var(--radius-md);
  padding: 22px; display: flex; flex-direction: column; gap: 10px;
}
.gc-story-tag {
  align-self: flex-start; font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--gc-gold); background: var(--gc-gold-soft); border-radius: 999px; padding: 4px 10px;
}
.gc-story-card h4 { font-size: 16px; margin: 0; line-height: 1.4; color: var(--gc-text); }
.gc-story-card p { font-size: 13.5px; line-height: 1.55; color: var(--gc-text-2); margin: 0; }
.gc-story-meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 10px; }
.gc-story-author { font-size: 12.5px; color: var(--gc-text-3); }
.gc-demo-badge {
  font-size: 10.5px; letter-spacing: 0.5px; color: #9AA3BD; border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px; padding: 2px 7px; text-transform: uppercase;
}
.gc-lock-note {
  text-align: center; color: var(--gc-text-3); font-size: 13.5px; margin-top: 30px;
}

/* ── Footer ───────────────────────────────────────────────────────── */
.gc-footer {
  border-top: 1px solid var(--gc-line); margin-top: 40px; padding: 30px 24px;
  text-align: center; color: var(--gc-text-3); font-size: 13px;
}
.gc-footer a { color: var(--gc-text-2); text-decoration: none; margin: 0 10px; }
.gc-footer a:hover { color: var(--gc-gold); }

/* ── Auth / member forms ──────────────────────────────────────────── */
.gc-auth-shell { max-width: 420px; margin: 70px auto 60px; padding: 0 24px; }
.gc-auth-card {
  background: linear-gradient(180deg, var(--gc-bg-elev), var(--gc-bg-card));
  border: 1px solid var(--gc-line); border-radius: var(--radius-lg); padding: 34px 28px;
}
.gc-auth-card h2 { font-size: 22px; margin: 0 0 6px; text-align: center; }
.gc-auth-card .gc-auth-sub { text-align: center; color: var(--gc-text-2); font-size: 14px; margin: 0 0 26px; }
.gc-field { margin-bottom: 16px; }
.gc-field label { display: block; font-size: 12.5px; color: var(--gc-text-2); margin-bottom: 6px; }
.gc-field input {
  width: 100%; padding: 13px 14px; border-radius: 10px; border: 1px solid var(--gc-line-strong);
  background: rgba(255,255,255,0.03); color: var(--gc-text); font-size: 14.5px; font-family: var(--font);
}
.gc-field input:focus { outline: none; border-color: var(--gc-gold); }
.gc-btn-block { width: 100%; justify-content: center; margin-top: 6px; }
.gc-auth-switch { text-align: center; margin-top: 18px; font-size: 13.5px; color: var(--gc-text-2); }
.gc-auth-switch button {
  background: none; border: none; color: var(--gc-gold-bright); cursor: pointer; font-size: 13.5px;
  text-decoration: underline; padding: 0;
}
.gc-form-msg { font-size: 13px; text-align: center; margin-top: 14px; min-height: 18px; }
.gc-form-msg.gc-err { color: #E8828C; }
.gc-form-msg.gc-ok { color: #8FD19E; }
.gc-step { display: none; }
.gc-step.gc-active { display: block; }

.gc-loader { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(26,19,4,0.3); border-top-color: #1A1304; border-radius: 50%; animation: gc-spin 0.7s linear infinite; }
@keyframes gc-spin { to { transform: rotate(360deg); } }

/* ── Member area ──────────────────────────────────────────────────── */
.gc-member-shell { max-width: 640px; margin: 70px auto; padding: 0 24px; text-align: center; }
.gc-badge-tier {
  display: inline-block; padding: 6px 16px; border-radius: 999px; font-size: 12px; font-weight: 700;
  letter-spacing: 1px; text-transform: uppercase; margin-bottom: 20px;
}
.gc-badge-plus { background: rgba(212,175,55,0.16); color: var(--gc-gold-bright); border: 1px solid var(--gc-line-strong); }
.gc-badge-free { background: rgba(255,255,255,0.06); color: var(--gc-text-2); border: 1px solid rgba(255,255,255,0.12); }

@media (max-width: 640px) {
  .gc-hero h1 { letter-spacing: -0.2px; }
  .gc-auth-shell { margin-top: 40px; }
}

/* ── Phase 2: closed feed, story detail, submit form ─────────────────── */
.gc-tabs { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 10px; margin: 6px 0 26px; -webkit-overflow-scrolling: touch; }
.gc-tab {
  padding: 9px 18px; border-radius: 999px; border: 1px solid var(--gc-line);
  color: var(--gc-text-2); font-size: 13px; white-space: nowrap; cursor: pointer;
  background: transparent; font-family: var(--font); transition: all 0.2s ease;
}
.gc-tab.gc-tab-active { border-color: var(--gc-gold); color: var(--gc-gold-bright); background: var(--gc-gold-soft); }
.gc-feed-shell { max-width: 900px; margin: 0 auto; padding: 0 24px 60px; }
.gc-feed-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 4px; }
.gc-story-card.gc-clickable { cursor: pointer; }
.gc-story-card.gc-clickable:hover { border-color: var(--gc-line-strong); transform: translateY(-2px); }
.gc-story-stats { display: flex; gap: 14px; font-size: 12.5px; color: var(--gc-text-3); }
.gc-empty-note { text-align: center; color: var(--gc-text-3); font-size: 14px; padding: 40px 0; }

.gc-story-detail { max-width: 720px; margin: 0 auto; padding: 50px 24px 70px; }
.gc-story-detail h1 { font-size: clamp(24px, 4vw, 32px); line-height: 1.3; margin: 14px 0 10px; }
.gc-story-body { font-size: 16px; line-height: 1.8; color: var(--gc-text); white-space: pre-line; margin: 26px 0 32px; }
.gc-story-actions { display: flex; align-items: center; gap: 14px; padding: 18px 0; border-top: 1px solid var(--gc-line); border-bottom: 1px solid var(--gc-line); margin-bottom: 30px; }
.gc-reaction-btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px;
  border: 1px solid var(--gc-line-strong); background: transparent; color: var(--gc-text);
  cursor: pointer; font-size: 14px; font-family: var(--font); transition: all 0.2s ease;
}
.gc-reaction-btn.gc-reacted { background: var(--gc-gold-soft); border-color: var(--gc-gold); color: var(--gc-gold-bright); }
.gc-comments-section h3 { font-size: 15px; letter-spacing: 1px; text-transform: uppercase; color: var(--gc-gold); margin: 0 0 18px; }
.gc-comment-item { padding: 16px 0; border-bottom: 1px solid var(--gc-line); }
.gc-comment-item:last-child { border-bottom: none; }
.gc-comment-author { font-size: 12.5px; color: var(--gc-gold-bright); font-weight: 600; }
.gc-comment-body { font-size: 14.5px; color: var(--gc-text-2); margin-top: 5px; line-height: 1.55; white-space: pre-line; }
.gc-comment-form { margin-top: 22px; display: flex; flex-direction: column; gap: 10px; }
.gc-comment-form textarea {
  width: 100%; min-height: 90px; padding: 13px 14px; border-radius: 12px; border: 1px solid var(--gc-line-strong);
  background: rgba(255,255,255,0.03); color: var(--gc-text); font-size: 14.5px; font-family: var(--font); resize: vertical;
}
.gc-comment-form textarea:focus { outline: none; border-color: var(--gc-gold); }
.gc-checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--gc-text-2); }

.gc-submit-shell { max-width: 560px; margin: 0 auto; padding: 50px 24px 70px; }
.gc-submit-shell textarea {
  width: 100%; min-height: 220px; padding: 14px 15px; border-radius: 12px; border: 1px solid var(--gc-line-strong);
  background: rgba(255,255,255,0.03); color: var(--gc-text); font-size: 15px; font-family: var(--font); resize: vertical; line-height: 1.6;
}
.gc-submit-shell textarea:focus { outline: none; border-color: var(--gc-gold); }
.gc-select {
  width: 100%; padding: 13px 14px; border-radius: 10px; border: 1px solid var(--gc-line-strong);
  background: rgba(255,255,255,0.03); color: var(--gc-text); font-size: 14.5px; font-family: var(--font);
}