/* ══════════════════════════════════════
   Cavai Release Notes — Shared Styles
   ══════════════════════════════════════ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --cavai-pink:#ff7f89;
  --cavai-gradient:linear-gradient(135deg,#FF6B9E,#FFA07A,#FFDB58);
  --cavai-gradient-subtle:linear-gradient(135deg,rgba(255,107,158,.06),rgba(255,160,122,.04),rgba(255,219,88,.02));
  --bg:#f5eee9;
  --surface:#fff;
  --text-primary:#1a1a1a;
  --text-secondary:#6b7280;
  --text-muted:#9ca3af;
  --border:rgba(255,127,137,.10);
  --border-strong:rgba(255,127,137,.22);
  --radius:12px;
  --squircle:squircle;
}

body{
  font-family:'Lato',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--text-primary);
  min-height:100vh;margin:0;
}
html{overflow-x:hidden}

/* ── Back link ── */
.back-link{
  display:inline-flex;align-items:center;gap:4px;
  position:fixed;top:16px;left:20px;z-index:100;
  font-size:13px;font-weight:700;
  color:var(--text-secondary);
  text-decoration:none;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(8px);
  padding:6px 14px 6px 10px;
  border-radius:8px;corner-shape:squircle;
  box-shadow:0 1px 6px rgba(0,0,0,.08);
  transition:color .15s, box-shadow .15s;
}
.back-link:hover{
  color:var(--cavai-pink);
  box-shadow:0 2px 10px rgba(0,0,0,.12);
}

/* ── Hero ──────────── */
.hero-wrap{overflow-x:clip;overflow-y:visible}
.hero{
  background:var(--cavai-gradient);
  padding:2.5rem 2rem 2rem;position:relative;overflow:visible;z-index:5;
}
.hero::before{
  content:'';position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:1;
}
.hero::after{
  content:'';position:absolute;top:-20%;right:-5%;bottom:-20%;width:55%;
  background:radial-gradient(ellipse at 70% 55%, rgba(255,255,255,.18) 0%, transparent 65%);
  pointer-events:none;z-index:1;
  animation:glow-pulse 5s ease-in-out infinite;
}
@keyframes glow-pulse{
  0%,100%{opacity:.7;transform:scale(1)}
  50%{opacity:1;transform:scale(1.12)}
}
.hero-inner{max-width:800px;margin:0 auto;position:relative;z-index:2}
.hero-logo{display:block;margin-bottom:1.8rem;opacity:.95}
.hero-title{font-size:clamp(22px,5vw,36px);font-weight:900;color:#fff;line-height:1.15;margin-bottom:.5rem;letter-spacing:-0.02em}
.hero-sub{font-size:14px;color:rgba(255,255,255,.85);font-weight:400;line-height:1.5;max-width:480px}
.hero-date{
  display:inline-block;margin-top:1rem;
  font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:rgba(255,255,255,.7);
  background:rgba(255,255,255,.15);backdrop-filter:blur(8px);
  padding:6px 14px;border-radius:20px;
}
.hero-versions{
  display:flex;gap:8px;margin-top:.8rem;flex-wrap:wrap;
}
.hero-version-pill{
  font-size:10px;font-weight:700;letter-spacing:.06em;
  color:rgba(255,255,255,.85);
  background:rgba(255,255,255,.12);backdrop-filter:blur(8px);
  padding:4px 12px;border-radius:16px;
}

/* ── Bubbles mascot ── */
@keyframes slide-in-right{
  from{transform:translateY(38%) translateX(120%);opacity:0}
  to{transform:translateY(38%) translateX(0);opacity:1}
}
.hero-mascot{
  position:absolute;bottom:-15px;right:6%;height:110px;width:auto;
  z-index:12;filter:drop-shadow(0 4px 12px rgba(0,0,0,.12));
  animation:slide-in-right .6s ease .5s both;
}

/* ── White star particles ── */
.star{
  position:absolute;pointer-events:none;z-index:11;
  color:#fff;font-size:14px;line-height:1;
  animation:star-twinkle 2s ease-in-out infinite;
}
@keyframes star-twinkle{
  0%,100%{opacity:.2;transform:scale(.8) rotate(0deg)}
  50%{opacity:1;transform:scale(1.2) rotate(20deg)}
}
.star-1{top:12%;right:8%;animation-delay:0s;font-size:16px}
.star-2{top:50%;right:18%;animation-delay:.5s;font-size:10px}
.star-3{top:25%;right:3%;animation-delay:1s;font-size:13px}
.star-4{bottom:25%;right:13%;animation-delay:1.5s;font-size:8px}
.star-5{top:8%;right:22%;animation-delay:.3s;font-size:18px}
.star-6{top:38%;right:6%;animation-delay:.8s;font-size:11px}
.star-7{bottom:35%;right:20%;animation-delay:1.2s;font-size:15px}

@media(max-width:600px){
  .hero{padding:1.5rem 1rem 1.2rem}
  .star{display:none}
  .hero-mascot{height:70px;right:3%}
}

/* ── Page ─────── */
.page{max-width:800px;margin:0 auto;padding:3.5rem 1.25rem 3rem;position:relative}
@media(max-width:480px){.page{padding:1rem .75rem 2rem}}

/* ── Section head ─────────── */
.section-head{
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-muted);font-weight:700;margin:2.2rem 0 1rem;
  display:flex;align-items:center;gap:10px
}
.section-head:first-child{margin-top:0}
.section-head::after{content:'';flex:1;height:1px;background:var(--border-strong)}

/* ── Feature cards ────── */
.feature-card{
  background:var(--surface);border-radius:var(--radius);corner-shape:var(--squircle);
  border:1px solid var(--border);
  padding:1.25rem 1.3rem;margin-bottom:10px;
  position:relative;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.feature-card:hover{
  border-color:var(--border-strong);
  box-shadow:0 2px 12px rgba(255,127,137,.08);
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--cavai-gradient);opacity:.5;
  transition:opacity .2s ease;
  border-radius:var(--radius) var(--radius) 0 0;
  z-index:21;
}
.feature-card:hover::before{opacity:.9}
.feature-card.highlight::before{opacity:1;height:3px}
.feature-card.highlight{border-color:var(--border-strong)}

/* ── Sticky header behavior ── */
.feature-card{
  /* Needed so sticky works relative to card */
}
.feature-header{
  display:flex;align-items:center;gap:10px;margin-bottom:.6rem;flex-wrap:wrap;
  position:sticky;top:0;z-index:20;
  background:var(--surface);
  margin:-1.25rem -1.3rem .6rem;
  padding:1rem 1.3rem .6rem;
  cursor:pointer;
  transition:box-shadow .2s ease;
}
.feature-header.stuck{
  box-shadow:0 2px 8px rgba(0,0,0,.06);
  border-bottom:1px solid var(--border);
  padding-bottom:.5rem;
}

/* ── Per-article progress bar ── */
.feature-progress{
  position:absolute;bottom:0;left:0;right:0;height:2px;
  background:transparent;
  pointer-events:none;
}
.feature-progress-fill{
  height:100%;width:0%;
  background:var(--cavai-gradient);
  transition:width .1s linear;
  border-radius:0 1px 1px 0;
}
.feature-header.stuck .feature-progress{
  background:rgba(255,127,137,.08);
}

/* ── Collapse toggle ── */
.feature-collapse-btn{
  margin-left:auto;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  border:none;background:none;cursor:pointer;
  color:var(--text-muted);
  border-radius:6px;
  transition:background .15s, color .15s, transform .2s;
  flex-shrink:0;
}
.feature-collapse-btn:hover{
  background:rgba(255,127,137,.08);
  color:var(--text-secondary);
}
.feature-collapse-btn svg{
  width:16px;height:16px;fill:currentColor;
  transition:transform .2s ease;
}
.feature-card:not(.collapsed) .feature-collapse-btn svg{
  transform:rotate(180deg);
}

/* ── Collapsible body ── */
.feature-card-body{
  transition:max-height .35s ease, opacity .25s ease;
  overflow:hidden;
}
.feature-card.collapsed .feature-card-body{
  max-height:0!important;
  opacity:0;
  margin:0;
  padding:0;
}
.feature-card.collapsed .feature-lead{
  margin-bottom:0;
}
.feature-icon{
  width:32px;height:32px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;flex-shrink:0;
}
.feature-icon.new{background:linear-gradient(135deg,#FF6B9E22,#FFA07A22)}
.feature-icon.fix{background:linear-gradient(135deg,#6B9BD222,#7BC5AE22)}
.feature-icon.imp{background:linear-gradient(135deg,#FFA07A22,#FFDB5822)}
.feature-title{font-size:15px;font-weight:900;letter-spacing:-0.01em;line-height:1.2}
.feature-badge{
  font-size:9px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:2px 8px;border-radius:4px;white-space:nowrap;flex-shrink:0;
}
.badge-feature{background:#FF6B9E18;color:#e05a7a}
.badge-fix{background:#7BC5AE18;color:#4a9a80}
.badge-improvement{background:#FFA07A18;color:#d07850}

.feature-body{
  font-size:13.5px;line-height:1.65;color:var(--text-secondary);
  padding-left:0;
}
.feature-body p{margin-bottom:.5rem}
.feature-body p:last-child{margin-bottom:0}

/* ── Article typography ── */
.feature-lead{
  font-size:16px;line-height:1.7;color:var(--text-primary);
  padding-left:0;margin-bottom:.4rem;font-weight:300;
}
.feature-subtitle{
  font-size:14px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;
  color:var(--cavai-pink);padding-left:0;
  margin:1.6rem 0 .4rem;
}
.feature-subtitle:first-of-type{margin-top:.8rem}
.feature-sub-subtitle{
  font-size:13px;font-weight:700;color:var(--text-primary);
  padding-left:0;margin:.8rem 0 .2rem;
}
.feature-details .feature-sub-subtitle{padding-left:0}
.feature-body .detail{font-size:12.5px;color:var(--text-muted);line-height:1.6}
.media-caption{
  font-size:11px;color:var(--text-muted);font-style:italic;
  padding-left:0;margin-top:4px;
}
.feature-details .media-caption{padding-left:0}

/* ── Hero cover image for card ── */
.feature-cover{
  margin:-.05rem -1.3rem 1.2rem;overflow:clip;
}
.feature-cover img,
.feature-cover video{
  width:100%;display:block;
  object-fit:cover;max-height:240px;
  border-bottom:1px solid var(--border);
}

/* ── Collapsible read more ── */
.feature-details{padding-left:0;margin-top:.5rem}
.feature-details summary{
  cursor:pointer;list-style:none;
  font-size:12px;font-weight:700;letter-spacing:.03em;
  color:var(--cavai-pink);
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 0;user-select:none;
}
.feature-details summary::-webkit-details-marker{display:none}
.feature-details summary::after{
  content:'';display:inline-block;
  width:0;height:0;
  border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid var(--cavai-pink);
  transition:transform .2s ease;
}
.feature-details[open] summary::after{transform:rotate(180deg)}
.feature-details .details-content{
  padding-top:.6rem;
}
.feature-details .feature-subtitle,
.feature-details .feature-body,
.feature-details .media-row,
.feature-details .feature-media{padding-left:0}
.feature-details .media-row img{flex:1 1 100%;max-width:100%;max-height:420px}

@media(max-width:480px){
  .feature-hero-img{padding-left:0}
  .feature-details{padding-left:0}
  .feature-body{padding-left:0;margin-top:.4rem}
  .feature-lead{padding-left:0}
  .feature-subtitle{padding-left:0}
  .feature-meta{padding-left:0!important}
  .feature-media{padding-left:0!important}
  .feature-prs{padding-left:0!important}
}

/* ── Compact meta line ── */
.feature-meta{
  display:flex;align-items:center;gap:6px;flex-wrap:wrap;
  margin-top:.7rem;padding:8px 0 0;
  border-top:1px solid var(--border);
  font-size:10px;color:var(--text-muted);
}
.meta-avatar{width:16px;height:16px;border-radius:50%;vertical-align:middle}
.meta-name{font-weight:700;color:var(--text-muted);text-decoration:none}
.meta-name:hover{color:var(--text-secondary)}
.meta-dot{opacity:.3}
.meta-date{margin-left:auto}

/* ── Repo tooltip ── */
.repo-link{
  position:relative;
}
.repo-link .repo-tooltip{
  position:absolute;
  bottom:calc(100% + 8px);
  left:50%;transform:translateX(-50%);
  background:var(--text-primary);
  color:#fff;
  font-size:11px;font-weight:400;
  line-height:1.45;
  padding:8px 12px;border-radius:8px;
  white-space:nowrap;
  pointer-events:none;
  opacity:0;
  transition:opacity .15s;
  z-index:30;
  box-shadow:0 4px 12px rgba(0,0,0,.15);
  letter-spacing:0;text-transform:none;
}
.repo-link .repo-tooltip::after{
  content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);
  border:4px solid transparent;border-top-color:var(--text-primary);
}
.repo-link:hover .repo-tooltip{
  opacity:1;
}
.repo-tooltip strong{font-weight:700;color:var(--cavai-pink);font-size:10px;letter-spacing:.04em;display:block;margin-bottom:1px}

/* ── Bug fix list ── */
.bugfix-list{
  background:var(--surface);border-radius:var(--radius);corner-shape:var(--squircle);
  border:1px solid var(--border);
  padding:0;margin-bottom:10px;overflow:hidden;
}
.bugfix-item{
  padding:.8rem 1.2rem;
  border-bottom:1px solid var(--border);
  font-size:13.5px;line-height:1.5;color:var(--text-secondary);
}
.bugfix-item:last-child{border-bottom:none}
.bugfix-title{font-weight:900;color:var(--text-primary);font-size:13.5px}
.bugfix-meta{font-size:10px;color:var(--text-muted);margin-top:4px;display:flex;align-items:center;gap:5px;flex-wrap:wrap}

/* ── Media (video + images) ──── */
.feature-media{
  margin:.8rem 0 .5rem;padding-left:0;
}
.feature-media video,
.feature-media img{
  width:100%;max-width:640px;border-radius:8px;
  border:1px solid var(--border);
  box-shadow:0 2px 8px rgba(0,0,0,.06);
}

/* ── Image gallery row ── */
.media-row{
  display:flex;gap:8px;flex-wrap:wrap;
  margin:.8rem 0 .5rem;padding-left:0;
}
.media-row img{
  flex:1 1 200px;max-width:49%;max-height:500px;border-radius:8px;
  border:1px solid var(--border);
  box-shadow:0 2px 8px rgba(0,0,0,.06);
  object-fit:contain;background:#e6e6e6;
}
.media-row video{
  flex:1 1 100%;max-width:100%;border-radius:8px;
  border:1px solid var(--border);
  box-shadow:0 2px 8px rgba(0,0,0,.06);
}
@media(max-width:480px){
  .media-row{padding-left:0}
  .media-row img{max-width:100%;flex:1 1 100%}
}

/* ── PR links ── */
.feature-prs{
  padding-left:0;margin-top:.5rem;
  display:flex;gap:6px;flex-wrap:wrap;
}
.pr-link{
  display:inline-flex;align-items:center;gap:4px;
  font-size:10px;font-weight:700;letter-spacing:.02em;
  color:var(--text-muted);text-decoration:none;
  padding:3px 8px;border-radius:6px;
  border:1px solid var(--border);
  transition:all .15s;
}
.pr-link:hover{border-color:var(--border-strong);color:var(--text-secondary)}
.pr-link svg{width:12px;height:12px;opacity:.5}

/* ── Contributors section ──── */
.contributors{
  background:var(--surface);border-radius:var(--radius);corner-shape:var(--squircle);
  border:1px solid var(--border);
  padding:1.25rem 1.3rem;margin-bottom:10px;
}
.contributors-title{
  font-size:15px;font-weight:900;letter-spacing:-0.01em;margin-bottom:.8rem;
  display:flex;align-items:center;gap:8px;
}
.contributor{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--cavai-gradient-subtle);
  border:1px solid var(--border);border-radius:20px;
  padding:5px 14px 5px 5px;margin:0 6px 6px 0;
  font-size:13px;font-weight:700;color:var(--text-primary);
  text-decoration:none;transition:border-color .2s;
}
.contributor:hover{border-color:var(--border-strong)}
.contributor img{width:26px;height:26px;border-radius:50%}
.contributor-note{
  font-size:12px;color:var(--text-muted);font-weight:400;margin-top:.5rem;
}

/* ── Changelog links ──── */
.changelog-links{
  display:flex;gap:8px;flex-wrap:wrap;margin-top:1.5rem;margin-bottom:1rem;
}
.changelog-link{
  font-size:11px;font-weight:700;letter-spacing:.04em;
  padding:7px 16px;border-radius:8px;border:1.5px solid var(--cavai-pink);
  background:transparent;color:var(--cavai-pink);cursor:pointer;
  text-decoration:none;transition:all .15s;
}
.changelog-link:hover{background:var(--cavai-pink);color:#fff}

/* ── Footer ────────── */
.footer{
  text-align:center;padding:2rem 1rem;
  font-size:11px;color:var(--text-muted);font-weight:400;
  letter-spacing:.03em;
}
.footer-logo{opacity:.35;margin-bottom:.5rem}

/* ── Fade-in animation ── */
@keyframes fade-up{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:translateY(0)}
}
.fade-in{animation:fade-up .5s ease both}
.fade-in:nth-child(1){animation-delay:.05s}
.fade-in:nth-child(2){animation-delay:.1s}
.fade-in:nth-child(3){animation-delay:.15s}
.fade-in:nth-child(4){animation-delay:.2s}
.fade-in:nth-child(5){animation-delay:.25s}
.fade-in:nth-child(6){animation-delay:.3s}
.fade-in:nth-child(7){animation-delay:.35s}
.fade-in:nth-child(8){animation-delay:.4s}
.fade-in:nth-child(9){animation-delay:.45s}
.fade-in:nth-child(10){animation-delay:.5s}

/* ── Reading progress bar ── */
.progress-bar{
  position:fixed;top:0;left:0;width:0%;height:3px;
  background:var(--cavai-pink);
  z-index:9999;transition:width .1s linear;
  box-shadow:0 0 8px rgba(255,127,137,.5);
}

/* ── On-brand scrollbar ── */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--cavai-pink);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#ff6b7a}
html{scrollbar-color:var(--cavai-pink) var(--bg);scrollbar-width:thin}

/* ── Cavai logo SVG inline helper ── */
.cavai-logo-white{fill:#fff}
.cavai-logo-muted{fill:#9ca3af}