/* =========================================================
   Serena Purslow — Portfolio Site
   Design system inspired by "The Updated Visual Vocabulary"
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root{
  /* pastel gradient palette, lifted from the Visual Vocabulary background */
  --grad-mint:#d7f5ec;
  --grad-lav:#e7dbf8;
  --grad-pink:#fbdaf0;
  --grad-blue:#d2e3fb;

  --ink:#1f2430;
  --ink-soft:#3a3f4d;
  --muted:#6b7080;
  --card:rgba(255,255,255,0.72);
  --card-solid:#ffffff;
  --border:rgba(31,36,48,0.08);
  --navy:#232838;

  /* category accent palette, cycled across cards/tags */
  --c-coral:#ff5a4e;
  --c-blue:#2f7bf6;
  --c-teal:#2fc98f;
  --c-magenta:#e85fd0;
  --c-purple:#8b5cf6;
  --c-orange:#ff9f5b;
  --c-pink:#f472b6;
  --c-indigo:#4c4ef6;
  --c-green:#22c55e;

  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-soft:0 10px 30px rgba(31,36,48,0.08);
  --shadow-lift:0 18px 40px rgba(31,36,48,0.14);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter',system-ui,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 12% 8%, var(--grad-mint) 0%, transparent 45%),
    radial-gradient(circle at 85% 12%, var(--grad-blue) 0%, transparent 50%),
    radial-gradient(circle at 90% 85%, var(--grad-pink) 0%, transparent 55%),
    radial-gradient(circle at 10% 90%, var(--grad-lav) 0%, transparent 55%),
    linear-gradient(160deg, var(--grad-mint), var(--grad-lav) 40%, var(--grad-pink) 70%, var(--grad-blue));
  background-attachment:fixed;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,.brand,.logo-word{
  font-family:'Fredoka',system-ui,sans-serif;
  font-weight:600;
  letter-spacing:0.2px;
  color:var(--ink);
  margin:0;
}

a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Top nav ---------- */
.topnav{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(255,255,255,0.55);
  border-bottom:1px solid var(--border);
}
.topnav-inner{
  max-width:1180px;
  margin:0 auto;
  padding:14px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.15rem;
}
.brand .dot{
  width:10px;height:10px;border-radius:50%;
  background:linear-gradient(135deg,var(--c-magenta),var(--c-blue));
  display:inline-block;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  font-weight:600;
  font-size:0.95rem;
}
.nav-links a{
  color:var(--ink-soft);
  padding:6px 2px;
  position:relative;
}
.nav-links a.active,.nav-links a:hover{color:var(--ink);}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-6px;
  height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--c-magenta),var(--c-purple));
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  border-radius:999px;
  background:var(--navy);
  color:#fff;
  font-weight:600;
  font-size:0.9rem;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  background:none;
  border:none;
  cursor:pointer;
  padding:6px;
}
.nav-toggle span{
  display:block;
  width:22px;height:2.5px;
  margin:4px 0;
  background:var(--ink);
  border-radius:2px;
}

/* ---------- Hero ---------- */
.hero{
  padding:64px 0 40px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr 0.7fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--card);
  border:1px solid var(--border);
  padding:8px 16px;
  border-radius:999px;
  font-weight:600;
  font-size:0.82rem;
  color:var(--ink-soft);
  margin-bottom:18px;
}
.hero h1{
  font-size:3.2rem;
  line-height:1.05;
  margin-bottom:16px;
}
.hero h1 .accent{
  background:linear-gradient(90deg,var(--c-magenta),var(--c-purple),var(--c-blue));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero p.lead{
  font-size:1.15rem;
  color:var(--ink-soft);
  max-width:520px;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 24px;
  border-radius:999px;
  font-weight:700;
  font-size:0.95rem;
  border:none;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn-primary{
  background:var(--navy);
  color:#fff;
  box-shadow:var(--shadow-soft);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.btn-ghost{
  background:var(--card);
  border:1px solid var(--border);
  color:var(--ink);
}
.btn-ghost:hover{transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:0.82rem;}

.social-row{display:flex;gap:12px;}
.social-btn{
  width:42px;height:42px;
  border-radius:50%;
  background:var(--card);
  border:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .15s ease, background .15s ease;
}
.social-btn:hover{transform:translateY(-3px);background:#fff;}
.social-btn svg{width:19px;height:19px;fill:var(--ink);}

.hero-photo-wrap{
  position:relative;
  display:flex;
  justify-content:center;
}
.hero-photo{
  width:280px;height:280px;
  border-radius:32px;
  object-fit:cover;
  box-shadow:var(--shadow-lift);
  border:6px solid #fff;
  transform:rotate(-2deg);
}
.floaty{
  position:absolute;
  padding:10px 14px;
  border-radius:16px;
  background:#fff;
  box-shadow:var(--shadow-soft);
  font-weight:700;
  font-size:0.8rem;
  display:flex;
  align-items:center;
  gap:6px;
}
.floaty.f1{top:-10px;right:0;color:var(--c-purple);}
.floaty.f2{bottom:10px;left:-24px;color:var(--c-teal);}

/* ---------- Badge strip ---------- */
.badge-strip{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:8px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  background:var(--card);
  border:1px solid var(--border);
  font-size:0.82rem;
  font-weight:600;
  color:var(--ink-soft);
}
.badge .swatch{width:8px;height:8px;border-radius:50%;}

/* ---------- Section headers ---------- */
.section{padding:64px 0;}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{font-size:2.1rem;}
.section-head p{color:var(--muted);max-width:480px;margin-top:8px;}
.tag-label{
  font-size:0.78rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:1px;
  margin-bottom:10px;
  display:block;
}

/* ---------- Cards grid ---------- */
.grid{
  display:grid;
  gap:22px;
}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:26px;
  backdrop-filter:blur(10px);
  transition:transform .18s ease, box-shadow .18s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}

/* viz portfolio cards */
.viz-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  cursor:pointer;
}
.viz-thumb{
  height:150px;
  border-radius:var(--radius-md);
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  overflow:hidden;
}
.viz-thumb svg{width:46px;height:46px;opacity:0.85;}
.viz-thumb .play{
  position:absolute;
  bottom:12px;right:12px;
  width:36px;height:36px;
  border-radius:50%;
  background:rgba(255,255,255,0.9);
  display:flex;align-items:center;justify-content:center;
}
.viz-thumb .play svg{width:14px;height:14px;fill:var(--navy);opacity:1;}
.viz-tag{
  display:inline-flex;
  align-self:flex-start;
  padding:5px 12px;
  border-radius:999px;
  font-size:0.72rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.5px;
  color:#fff;
}
.viz-card h3{font-size:1.05rem;line-height:1.3;}
.viz-card p{color:var(--muted);font-size:0.9rem;line-height:1.5;margin:0;}
.viz-link{
  margin-top:auto;
  font-weight:700;
  font-size:0.85rem;
  display:inline-flex;
  align-items:center;
  gap:6px;
}

/* blog / tip cards */
.tip-card{display:flex;flex-direction:column;gap:12px;}
.tip-card .tip-meta{font-size:0.78rem;color:var(--muted);font-weight:600;}
.tip-card h3{font-size:1.1rem;}
.tip-card p{color:var(--muted);font-size:0.92rem;line-height:1.55;margin:0;}

/* ---------- Timeline (About) ---------- */
.timeline{
  position:relative;
  padding-left:32px;
  border-left:3px solid rgba(31,36,48,0.1);
}
.timeline-item{position:relative;padding-bottom:44px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{
  position:absolute;
  left:-42px;
  top:2px;
  width:16px;height:16px;
  border-radius:50%;
  border:3px solid #fff;
  box-shadow:0 0 0 3px rgba(31,36,48,0.08);
}
.timeline-year{
  font-family:'Fredoka';
  font-weight:600;
  font-size:0.85rem;
  padding:4px 12px;
  border-radius:999px;
  display:inline-block;
  margin-bottom:10px;
  color:#fff;
}
.timeline-item h3{font-size:1.2rem;margin-bottom:6px;}
.timeline-item p{color:var(--ink-soft);line-height:1.6;margin:0;max-width:600px;}

/* recognitions */
.recog-card{
  display:flex;
  align-items:flex-start;
  gap:14px;
}
.recog-icon{
  width:42px;height:42px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.recog-icon svg{width:20px;height:20px;fill:#fff;}
.recog-card h4{font-size:0.98rem;margin-bottom:4px;}
.recog-card p{margin:0;color:var(--muted);font-size:0.85rem;}

/* ---------- Contact ---------- */
.contact-card{
  background:var(--navy);
  border-radius:32px;
  padding:56px;
  color:#fff;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
}
.contact-card h2{color:#fff;font-size:2rem;margin-bottom:12px;}
.contact-card p{color:rgba(255,255,255,0.7);line-height:1.6;}
.contact-form{display:flex;flex-direction:column;gap:14px;}
.form-row{display:flex;gap:14px;}
.contact-form input,.contact-form textarea{
  width:100%;
  padding:14px 16px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.18);
  background:rgba(255,255,255,0.08);
  color:#fff;
  font-family:inherit;
  font-size:0.92rem;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(255,255,255,0.5);}
.contact-form textarea{resize:vertical;min-height:100px;}
.contact-form .btn-primary{background:#fff;color:var(--navy);align-self:flex-start;}
.contact-social{display:flex;gap:12px;margin-top:20px;}
.contact-social .social-btn{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.15);}
.contact-social .social-btn svg{fill:#fff;}
.form-note{font-size:0.78rem;color:rgba(255,255,255,0.55);}

/* ---------- Viz thumbnails (real Tableau Public images w/ graceful fallback) ---------- */
.viz-thumb{position:relative;isolation:isolate;}
.viz-thumb .thumb-fallback{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  z-index:0;
}
.viz-thumb-img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  object-position:top center;
  z-index:1;
  background:transparent;
}
.viz-thumb .play{z-index:2;}

/* ---------- Article / blog post pages ---------- */
.article{max-width:720px;}
.article .post-meta{color:var(--muted);font-weight:600;font-size:0.85rem;margin-bottom:6px;}
.article h1{font-size:2.3rem;margin-bottom:10px;}
.article h2{font-size:1.4rem;margin-top:36px;margin-bottom:14px;}
.article h3{font-size:1.15rem;margin-top:26px;margin-bottom:10px;}
.article p{color:var(--ink-soft);line-height:1.75;font-size:1.02rem;margin:0 0 16px;}
.article ul{color:var(--ink-soft);line-height:1.75;font-size:1.02rem;padding-left:22px;margin:0 0 16px;}
.article li{margin-bottom:6px;}
.article strong{color:var(--ink);}
.article a{text-decoration:underline;text-underline-offset:2px;}
.article a:hover{color:var(--c-blue);}
.article video{
  width:100%;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
  margin:18px 0 26px;
  background:#000;
}
.article .shot{
  max-width:280px;
  border-radius:12px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-soft);
  margin:14px 0 22px;
}
.article .yt-embed{
  position:relative;
  width:100%;
  padding-top:56.25%;
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  margin:18px 0 26px;
}
.article .yt-embed iframe{
  position:absolute;inset:0;
  width:100%;height:100%;
  border:0;
}
.back-link{
  display:flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  font-size:0.9rem;
  color:var(--muted);
  margin-bottom:20px;
}
.back-link:hover{color:var(--ink);}
.related-row{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:20px;
}
.related-pill{
  padding:9px 16px;
  border-radius:999px;
  background:var(--card);
  border:1px solid var(--border);
  font-weight:600;
  font-size:0.85rem;
}

/* ---------- Footer ---------- */
footer{padding:36px 0 90px;text-align:center;color:var(--muted);font-size:0.85rem;}

/* ---------- Mobile app-style tab bar ---------- */
.tabbar{
  position:fixed;
  bottom:16px;
  left:50%;
  transform:translateX(-50%);
  width:calc(100% - 32px);
  max-width:420px;
  background:rgba(35,40,56,0.92);
  backdrop-filter:blur(14px);
  border-radius:24px;
  display:none;
  justify-content:space-around;
  padding:10px 6px;
  z-index:60;
  box-shadow:0 12px 30px rgba(0,0,0,0.25);
}
.tabbar a{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  color:rgba(255,255,255,0.55);
  font-size:0.68rem;
  font-weight:600;
  padding:6px 10px;
  border-radius:14px;
}
.tabbar a svg{width:19px;height:19px;fill:rgba(255,255,255,0.55);}
.tabbar a.active{color:#fff;background:rgba(255,255,255,0.12);}
.tabbar a.active svg{fill:#fff;}

/* ---------- YouTube click-through thumbnail (more reliable than an iframe embed) ---------- */
.yt-thumb-link{
  display:block;
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  margin:18px 0 8px;
  aspect-ratio:16/9;
  background:#000;
}
.yt-thumb-link img{width:100%;height:100%;object-fit:cover;display:block;}
.yt-thumb-link .yt-play{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:64px;height:64px;
  border-radius:50%;
  background:rgba(255,255,255,0.92);
  display:flex;align-items:center;justify-content:center;
  transition:transform .15s ease;
}
.yt-thumb-link:hover .yt-play{transform:translate(-50%,-50%) scale(1.08);}
.yt-thumb-link .yt-play svg{width:22px;height:22px;fill:var(--navy);margin-left:2px;}
.yt-caption{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  font-size:0.9rem;
  color:var(--c-blue);
  margin:0 0 22px;
}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed;
  inset:0;
  background:rgba(20,22,30,0.55);
  backdrop-filter:blur(4px);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:100;
  padding:20px;
}
.modal-overlay.open{display:flex;}
.modal-box{
  background:#fff;
  border-radius:24px;
  width:min(1000px,100%);
  max-height:88vh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,0.35);
}
.modal-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 22px;
  border-bottom:1px solid var(--border);
}
.modal-head h3{font-size:1.05rem;}
.modal-close{
  background:rgba(31,36,48,0.06);
  border:none;
  width:34px;height:34px;
  border-radius:50%;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;
  line-height:1;
}
.modal-body{
  flex:1;
  min-height:520px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#f4f5f8;
  position:relative;
}
.modal-body tableau-viz{width:100%;height:100%;min-height:520px;}
.modal-loading{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  color:var(--muted);
  font-size:0.85rem;
  font-weight:600;
}
.spinner{
  width:28px;height:28px;
  border-radius:50%;
  border:3px solid rgba(31,36,48,0.15);
  border-top-color:var(--navy);
  animation:spin 0.8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.modal-foot{
  padding:14px 22px;
  border-top:1px solid var(--border);
  display:flex;
  justify-content:flex-end;
}

/* ---------- Reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- Page hero (sub-pages) ---------- */
.page-hero{padding:56px 0 20px;text-align:left;}
.page-hero h1{font-size:2.6rem;margin-bottom:14px;}
.page-hero p{color:var(--ink-soft);font-size:1.08rem;max-width:640px;}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-photo-wrap{order:-1;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .contact-card{grid-template-columns:1fr;padding:36px;}
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .tabbar{display:flex;}
  body{padding-bottom:0;}
  footer{padding-bottom:110px;}
}
@media (max-width: 620px){
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .hero h1{font-size:2.3rem;}
  .form-row{flex-direction:column;}
  .contact-card{padding:28px;border-radius:24px;}
}