/* ============================================================
   home.css — premium homepage layer (UCLA Neuromodulation)
   Fully scoped under .hp-page; all classes hp-prefixed so this
   file never affects the other pages that share styles.css.
   Loaded only on index.html (via its <!--meta--> headExtra).
   ============================================================ */

.hp-page{
  /* self-contained tokens (don't depend on styles.css :root) */
  --hp-blue:#2774AE; --hp-blue-dark:#1B5583; --hp-gold:#FFD100; --hp-gold-deep:#B8860B;
  --hp-navy:#0B2341; --hp-navy-light:#163A5F; --hp-navy-deep:#071A31;
  --hp-slate:#2D3748; --hp-slate-light:#6B7688;
  --hp-cream:#FDFBF7; --hp-warm:#F6F3EE; --hp-white:#fff;
  --hp-border:#E6E2DA; --hp-hair:rgba(11,35,65,.10);
  --hp-display:'Satoshi','Hanken Grotesk',-apple-system,sans-serif;
  --hp-body:'DM Sans',-apple-system,sans-serif;
  --hp-shadow-md:0 10px 30px -12px rgba(11,35,65,.18);
  --hp-shadow-lg:0 30px 60px -24px rgba(11,35,65,.28);
  --hp-ease:cubic-bezier(.22,1,.36,1);
  --hp-max:1180px;

  background:var(--hp-cream);
  color:var(--hp-navy);
  font-family:var(--hp-body);
  font-weight:400;
  line-height:1.65;
}
.hp-page h1,.hp-page h2,.hp-page h3,.hp-page h4{
  font-family:var(--hp-display);color:var(--hp-navy);font-weight:700;line-height:1.1;letter-spacing:-.02em;
}
.hp-wrap{max-width:var(--hp-max);margin:0 auto;padding:0 32px}
.hp-eyebrow{font-family:var(--hp-body);font-weight:600;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--hp-blue)}

/* paper grain */
.hp-grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.025;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* buttons */
.hp-btn{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--hp-body);font-weight:600;font-size:.95rem;
  padding:.85rem 1.5rem;border-radius:9999px;border:1px solid transparent;cursor:pointer;transition:all .25s var(--hp-ease);white-space:nowrap}
.hp-btn svg{width:18px;height:18px}
.hp-btn-gold{background:var(--hp-gold);color:var(--hp-navy);box-shadow:0 8px 20px -8px rgba(255,209,0,.6)}
.hp-btn-gold:hover{background:#FFDB33;transform:translateY(-1px);box-shadow:0 12px 26px -8px rgba(255,209,0,.7)}
.hp-btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.hp-btn-ghost:hover{color:var(--hp-gold);border-color:var(--hp-gold);background:rgba(255,209,0,.06);transform:translateY(-1px)}
.hp-btn-navy{background:var(--hp-navy);color:#fff}
.hp-btn-navy:hover{background:var(--hp-navy-light);transform:translateY(-1px)}
.hp-btn-outline{background:transparent;color:var(--hp-navy);border-color:var(--hp-hair)}
.hp-btn-outline:hover{border-color:var(--hp-navy);background:rgba(11,35,65,.03)}
.hp-ic{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:9999px;background:rgba(11,35,65,.10);transition:transform .25s var(--hp-ease)}
.hp-btn-gold:hover .hp-ic{transform:translate(2px,-1px)}

/* hero */
.hp-hero{position:relative;background:var(--hp-navy);color:#fff;overflow:hidden;isolation:isolate}
.hp-hero__bg{position:absolute;inset:0;z-index:0}
.hp-hero__bg img{width:100%;height:100%;object-fit:cover;object-position:70% 50%}
.hp-hero__scrim{position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,var(--hp-navy-deep) 0%,rgba(7,26,49,.92) 30%,rgba(7,26,49,.55) 55%,rgba(7,26,49,.15) 80%,rgba(7,26,49,.35) 100%)}
.hp-hero__glow{position:absolute;z-index:0;right:-8%;top:50%;transform:translateY(-50%) scale(1);width:60vw;height:60vw;max-width:820px;max-height:820px;
  background:radial-gradient(circle,rgba(39,116,174,.45) 0%,rgba(39,116,174,0) 62%);pointer-events:none;
  animation:hp-glow-breathe 9s ease-in-out infinite}
@keyframes hp-glow-breathe{0%,100%{opacity:.82;transform:translateY(-50%) scale(1)}50%{opacity:1;transform:translateY(-50%) scale(1.045)}}
.hp-sparkles{position:absolute;inset:0;z-index:1;pointer-events:none}
/* Soft glints that read as the brain glistening: a feathered radial gradient
   (soft edges, no hard circle) at a visible-but-gentle opacity. */
.hp-spark{position:absolute;width:9px;height:9px;border-radius:50%;opacity:0;
  background:radial-gradient(circle, rgba(255,255,255,.95) 0%, rgba(198,226,255,.55) 32%, rgba(198,226,255,0) 70%);
  animation:hp-tw 4.5s ease-in-out infinite}
.hp-spark.lg{width:13px;height:13px}
@keyframes hp-tw{0%,100%{opacity:0;transform:scale(.4)}50%{opacity:.9;transform:scale(1)}}
/* ── Synaptic bolts ─────────────────────────────────────────────────────────
   Builds on the blinking neurons (.hp-spark): an occasional jagged bolt arcs
   between two neurons — drawn source→destination with a soft electric glow and
   a small flash where it lands. Reads as one neuron discharging to the next.
   Quick + infrequent, single clean strike (no strobing); fully disabled under
   prefers-reduced-motion. */
.hp-synapse{position:absolute;inset:0;z-index:1;pointer-events:none}
.hp-bolt{position:absolute;height:auto;overflow:visible;transform:rotate(var(--rot,0deg));opacity:1;
  filter:drop-shadow(0 0 2.5px rgba(110,160,205,.45))}
/* a soft bead glides along a smooth arc from one neuron to the next; muted
   and solid rather than bright/glowy. The arc never moves — only the light. */
.hp-bolt path{fill:none;stroke:#9cbfe1;stroke-width:1.9;stroke-linecap:round;
  stroke-dasharray:18 100;stroke-dashoffset:18;will-change:stroke-dashoffset;
  animation:hp-bolt-travel var(--dur,5.5s) cubic-bezier(.4,0,.2,1) var(--delay,0s) infinite}
.hp-bolt circle{fill:#c2d7ec;opacity:0;animation:hp-bolt-hit var(--dur,5.5s) ease-out var(--delay,0s) infinite}
/* the bead travels source→destination over a short window, then waits */
@keyframes hp-bolt-travel{0%,3%{stroke-dashoffset:18}17%{stroke-dashoffset:-100}100%{stroke-dashoffset:-100}}
/* a soft, dim flash where the bead lands */
@keyframes hp-bolt-hit{0%,15%{opacity:0}17.5%{opacity:.5}23%{opacity:.18}29%{opacity:0}100%{opacity:0}}
.hp-hero .hp-wrap{position:relative;z-index:2;padding-top:70px;padding-bottom:88px}
.hp-badge{display:inline-flex;align-items:center;gap:.55rem;padding:.42rem 1rem;border-radius:9999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);font-size:.74rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#fff}
.hp-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--hp-gold);box-shadow:0 0 10px var(--hp-gold)}
.hp-hero h1{color:#fff;font-size:clamp(2.9rem,6.4vw,5rem);font-weight:900;margin-top:1.4rem;max-width:14ch;letter-spacing:-.03em}
.hp-hero h1 .gold{color:var(--hp-gold)}
.hp-hero h1 .line2{display:block;font-size:clamp(1.05rem,2.1vw,1.5rem);font-weight:500;font-family:var(--hp-body);letter-spacing:.01em;color:rgba(255,255,255,.86);margin-top:1rem}
.hp-lede{max-width:50ch;margin-top:1.6rem;font-size:1.12rem;line-height:1.6;color:rgba(255,255,255,.9)}
.hp-hero-actions{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:2.2rem}
.hp-hero .hp-hero-refer{margin-top:2.25rem;font-size:.92rem;color:rgba(255,255,255,.7)}
.hp-hero-refer a{color:var(--hp-gold);font-weight:600}
.hp-hero-stats{display:flex;gap:0;margin-top:3.2rem;border-top:1px solid rgba(255,255,255,.14);padding-top:1.6rem;max-width:680px}
.hp-hero-stats .s{flex:1;padding-right:1.5rem}
.hp-hero-stats .s+.s{padding-left:1.6rem;border-left:1px solid rgba(255,255,255,.14)}
.hp-hero-stats .n{font-family:var(--hp-display);font-size:2rem;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.hp-hero-stats .l{font-size:.74rem;letter-spacing:.13em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-top:.25rem}
@media(max-width:760px){
  .hp-hero__bg img{object-position:60% 30%}
  .hp-hero__scrim{background:linear-gradient(180deg,rgba(7,26,49,.78) 0%,rgba(7,26,49,.6) 28%,rgba(7,26,49,.72) 55%,rgba(7,26,49,.94) 100%)}
  .hp-hero .hp-wrap{padding-top:52px;padding-bottom:48px}
  .hp-hero-stats{flex-wrap:wrap}
  .hp-hero-stats .s{flex:1 0 45%;padding:0 .8rem;margin-bottom:1rem}
  .hp-hero-stats .s:nth-child(1){padding-left:0}
  .hp-hero-stats .s+.s{border-left:none}
}

/* section scaffold */
.hp-sec{padding:108px 0;position:relative;z-index:2}
.hp-sec--tight{padding:84px 0}
.hp-sec-head{max-width:60ch}
.hp-sec-head h2{font-size:clamp(2rem,4vw,3rem);margin-top:1rem}
.hp-sec-head p{color:var(--hp-slate);font-size:1.1rem;margin-top:1.1rem;max-width:54ch}

/* dual track */
.hp-dualtrack{background:var(--hp-white);border-top:1px solid var(--hp-border)}
.hp-dt-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--hp-border);border-radius:22px;overflow:hidden;box-shadow:var(--hp-shadow-md);background:var(--hp-white);margin-top:44px}
.hp-dt-card{padding:54px 48px;position:relative;transition:background .4s var(--hp-ease)}
.hp-dt-card+.hp-dt-card{border-left:1px solid var(--hp-border)}
.hp-dt-card:hover{background:var(--hp-warm)}
.hp-dt-num{font-family:var(--hp-display);font-size:1rem;color:var(--hp-slate-light);font-weight:600}
.hp-dt-card h3{font-size:1.85rem;margin:.7rem 0 0}
.hp-dt-card .role{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--hp-blue);font-weight:600;margin-top:.5rem}
.hp-dt-card p{color:var(--hp-slate);margin-top:1rem;font-size:1.02rem}
.hp-dt-links{margin-top:1.6rem;display:flex;flex-direction:column;gap:.6rem}
.hp-dt-links a{display:inline-flex;align-items:center;gap:.5rem;color:var(--hp-navy);font-weight:600;font-size:.96rem}
.hp-dt-links a:hover{color:var(--hp-blue)}
.hp-dt-links a svg{width:15px;height:15px;transition:transform .25s var(--hp-ease)}
.hp-dt-links a:hover svg{transform:translateX(3px)}
.hp-dt-foot{margin-top:1.9rem}
@media(max-width:820px){.hp-dt-grid{grid-template-columns:1fr}.hp-dt-card+.hp-dt-card{border-left:none;border-top:1px solid var(--hp-border)}.hp-dt-card{padding:40px 30px}}

/* editorial split */
.hp-split{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.hp-split .media{position:relative}
.hp-split .media img{border-radius:18px;box-shadow:var(--hp-shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/3}
.hp-split .media .cap{position:absolute;left:18px;bottom:18px;background:rgba(11,35,65,.82);backdrop-filter:blur(6px);color:#fff;font-size:.78rem;padding:.5rem .9rem;border-radius:9999px;letter-spacing:.01em}
.hp-split .media a.cap:hover{background:var(--hp-blue-dark);color:#fff}
.hp-split h2{font-size:clamp(1.9rem,3.4vw,2.7rem);margin-top:1rem}
.hp-split p{color:var(--hp-slate);margin-top:1.1rem;font-size:1.08rem}
.hp-ticks{margin-top:1.6rem;display:flex;flex-direction:column;gap:.8rem}
.hp-tick{display:flex;gap:.7rem;align-items:flex-start;font-size:1rem;color:var(--hp-navy)}
.hp-tick svg{width:20px;height:20px;color:var(--hp-blue);flex:none;margin-top:2px}
.hp-split .hp-btn{margin-top:1.9rem}
@media(max-width:820px){.hp-split{grid-template-columns:1fr;gap:32px}}

/* conditions */
.hp-cond-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.hp-cond{display:flex;flex-direction:column;background:var(--hp-white);border:1px solid var(--hp-border);border-radius:16px;padding:28px 26px;
  transition:transform .22s var(--hp-ease),box-shadow .22s var(--hp-ease),border-color .22s var(--hp-ease)}
.hp-cond:hover{transform:translateY(-3px);box-shadow:var(--hp-shadow-md);border-color:var(--hp-hair)}
.hp-chip{align-self:flex-start;display:inline-flex;align-items:center;gap:.4rem;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:.32rem .7rem;border-radius:9999px;margin-bottom:1rem}
.hp-chip.fda{background:rgba(45,138,86,.12);color:#1F6B40}
.hp-chip.acc{background:rgba(184,134,11,.14);color:var(--hp-gold-deep)}
.hp-chip.adv{background:rgba(39,116,174,.12);color:var(--hp-blue-dark)}
.hp-cond h3{font-size:1.28rem}
.hp-cond p{color:var(--hp-slate);font-size:.96rem;margin-top:.6rem;flex:1}
.hp-cond .more{margin-top:1.2rem;display:inline-flex;align-items:center;gap:.45rem;font-weight:600;font-size:.9rem;color:var(--hp-blue)}
.hp-cond .more svg{width:15px;height:15px;transition:transform .25s var(--hp-ease)}
.hp-cond:hover .more svg{transform:translateX(3px)}
.hp-cond.feat{background:var(--hp-navy);border-color:var(--hp-navy)}
.hp-cond.feat h3,.hp-cond.feat p{color:#fff}
.hp-cond.feat p{color:rgba(255,255,255,.82)}
.hp-cond.feat .more{color:var(--hp-gold)}
.hp-cond.feat .hp-chip{background:rgba(255,209,0,.16);color:var(--hp-gold)}
@media(max-width:880px){.hp-cond-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.hp-cond-grid{grid-template-columns:1fr}}

/* division dark band */
.hp-division{background:var(--hp-navy);color:#fff;position:relative;overflow:hidden}
.hp-division__bg{position:absolute;inset:0;z-index:0;opacity:.20}
.hp-division__bg img{width:100%;height:100%;object-fit:cover}
.hp-division::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(11,35,65,.7),rgba(7,26,49,.94))}
.hp-division .hp-wrap{position:relative;z-index:2}
.hp-division .hp-eyebrow{color:var(--hp-gold)}
.hp-division h2{color:#fff;font-size:clamp(2rem,4vw,3rem);margin-top:1rem;max-width:18ch}
.hp-division .hp-lede{color:rgba(255,255,255,.82);font-size:1.12rem;margin-top:1.2rem;max-width:56ch}
.hp-pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:54px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:16px;overflow:hidden}
.hp-pillar{background:var(--hp-navy);padding:30px 26px;transition:background .3s var(--hp-ease)}
.hp-pillar:hover{background:var(--hp-navy-light)}
.hp-pillar .pi{width:26px;height:26px;color:var(--hp-gold)}
.hp-pillar h3{color:#fff;font-size:1.22rem;margin-top:1rem}
.hp-pillar p{color:rgba(255,255,255,.72);font-size:.92rem;margin-top:.5rem}
.hp-pillar a{color:var(--hp-gold);font-weight:600;font-size:.85rem;margin-top:.9rem;display:inline-block}
@media(max-width:880px){.hp-pillars{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.hp-pillars{grid-template-columns:1fr}}
.hp-faculty-row{display:flex;align-items:center;gap:1.2rem;margin-top:46px;flex-wrap:wrap}
.hp-faces{display:flex}
.hp-faces img{width:54px;height:54px;border-radius:50%;object-fit:cover;border:2px solid var(--hp-navy);margin-left:-14px;box-shadow:0 0 0 1px rgba(255,255,255,.25)}
.hp-faces img:first-child{margin-left:0}
.hp-faculty-row .txt{font-size:.98rem;color:rgba(255,255,255,.82)}
.hp-faculty-row .txt a{color:#fff;font-weight:600;border-bottom:1px solid rgba(255,255,255,.4)}

/* locations */
.hp-loc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:48px}
.hp-loc{background:var(--hp-white);border:1px solid var(--hp-border);border-radius:16px;overflow:hidden;transition:transform .22s var(--hp-ease),box-shadow .22s var(--hp-ease)}
.hp-loc:hover{transform:translateY(-3px);box-shadow:var(--hp-shadow-md)}
.hp-loc .ph{height:260px;overflow:hidden}
/* picture is the img's parent; give it the box height so img height:100% fills
   (otherwise a landscape photo sizes to its natural aspect and leaves a gap). */
.hp-loc .ph picture,.hp-division__bg picture{display:block;width:100%;height:100%}
.hp-loc .ph img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .6s var(--hp-ease)}
.hp-loc:hover .ph img{transform:scale(1.04)}
.hp-loc .body{padding:24px 24px 26px}
.hp-loc h3{font-size:1.32rem}
.hp-loc .tag{font-size:.84rem;color:var(--hp-slate-light);margin-top:.3rem}
.hp-loc .addr{font-size:.92rem;color:var(--hp-slate);margin-top:.9rem;line-height:1.5}
.hp-loc .hrs{font-size:.85rem;color:var(--hp-slate-light);margin-top:.7rem}
.hp-loc .hp-btn{margin-top:1.1rem;padding:.55rem 1.1rem;font-size:.85rem}
@media(max-width:880px){.hp-loc-grid{grid-template-columns:1fr;max-width:480px;margin-left:auto;margin-right:auto}.hp-loc .ph{height:230px}}

/* closing cta */
.hp-closing{background:linear-gradient(135deg,var(--hp-navy) 0%,var(--hp-navy-deep) 100%);color:#fff;text-align:center;position:relative;overflow:hidden}
.hp-closing__glow{position:absolute;left:50%;top:0;transform:translate(-50%,-40%);width:700px;height:700px;background:radial-gradient(circle,rgba(39,116,174,.4),transparent 60%);pointer-events:none}
.hp-closing .hp-wrap{position:relative;z-index:2}
.hp-closing h2{color:#fff;font-size:clamp(2rem,4vw,2.9rem)}
.hp-closing p{color:rgba(255,255,255,.82);margin-top:1rem;font-size:1.1rem;max-width:48ch;margin-left:auto;margin-right:auto}
.hp-closing .contact{margin-top:1.8rem;display:flex;gap:2rem;justify-content:center;flex-wrap:wrap;font-size:1.05rem}
.hp-closing .contact a{color:#fff;font-weight:600}
.hp-closing .contact .gold{color:var(--hp-gold)}
.hp-closing-actions{margin-top:2rem;display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}

/* patient stories — chic: rounded thumbnail, frosted play button, slim caption (no white band) */
.hp-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:48px}
.hp-video{transition:transform .22s var(--hp-ease)}
.hp-video:hover{transform:translateY(-3px)}
.hp-video-wrap{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;background:var(--hp-navy);border-radius:14px;box-shadow:var(--hp-shadow-md);transition:box-shadow .22s var(--hp-ease)}
.hp-video:hover .hp-video-wrap{box-shadow:var(--hp-shadow-lg)}
.hp-video-cap{padding:13px 4px 0}
.hp-video-cap h4{font-family:var(--hp-display);font-size:1rem;font-weight:600;color:var(--hp-navy);letter-spacing:-.01em}
/* minimal frosted play button (scoped to homepage — other pages keep the default red one) */
.hp-video .youtube-facade::after{background:rgba(11,35,65,.20)}
.hp-video .youtube-facade:hover::after{background:rgba(11,35,65,.08)}
.hp-video .youtube-facade .play-btn{width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.16);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.7);box-shadow:0 6px 18px rgba(0,0,0,.28)}
.hp-video .youtube-facade:hover .play-btn{background:rgba(255,255,255,.28);transform:translate(-50%,-50%) scale(1.07)}
.hp-video .youtube-facade .play-btn::after{border-width:8px 0 8px 13px;border-color:transparent transparent transparent #fff;left:56%}
@media(max-width:820px){.hp-video-grid{grid-template-columns:1fr;max-width:460px;margin-left:auto;margin-right:auto}}

/* scroll reveal — progressive enhancement (hidden only once JS opts in) */
.hp-page.hp-js .hp-rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--hp-ease),transform .8s var(--hp-ease)}
.hp-page.hp-js .hp-rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.hp-page.hp-js .hp-rv{opacity:1!important;transform:none!important;transition:none}
  .hp-spark{animation:none;opacity:.6}
  .hp-bolt,.hp-bolt path,.hp-bolt circle{animation:none;opacity:0}
  .hp-hero__glow{animation:none;opacity:.9}}