:root{
    --cream:#FAF9F5;
    --cream-deep:#F2F0E7;
    --ink:#16140F;
    --ink-soft:#3A362C;
    --stone:#8C8676;
    --stone-light:#B8B2A0;
    --red:#C1272D;
    --red-dark:#9E1F24;
    --line: rgba(22,20,15,0.10);
    --white:#FEFDFA;
    --grey-ph:#D9D9D6;
    --grey-ph-dark:#C7C6C1;
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --maxw: 1240px;
    --font-display:'TASA Orbiter Display', 'Archivo', sans-serif;
    --font-body:'Inter', sans-serif;
  }

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

  html{scroll-behavior:smooth; background:var(--red);}

  body{
    background:var(--cream);
    color:var(--ink);
    font-family:var(--font-body);
    font-weight:500;
    letter-spacing:-0.02em;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  img{display:block;width:100%;height:100%;object-fit:cover;}

  a{text-decoration:none;color:inherit;}

  .wrap{
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 40px;
  }

  h1,h2,h3{
    font-family:var(--font-display);
    font-weight:600;
    letter-spacing:-0.03em;
    line-height:1.02;
  }

  
  .ph{
    width:100%;
    height:100%;
    background:linear-gradient(135deg, var(--grey-ph) 0%, var(--grey-ph-dark) 100%);
  }

  
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:14px 28px;
    border-radius:999px;
    font-family:var(--font-body);
    font-weight:500;
    letter-spacing:-0.02em;
    font-size:15px;
    cursor:pointer;
    border:1px solid transparent;
    transition:transform .18s ease, background .18s ease, border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--red);
    color:#fff;
  }
  .btn-primary:hover{ background:var(--red-dark); transform:translateY(-1px); }
  .btn-outline{
    background:transparent;
    border-color:var(--line);
    color:var(--ink);
  }
  .btn-outline:hover{ border-color:var(--ink); transform:translateY(-1px); }
  .btn-sm{ padding:11px 22px; font-size:14px; }

  
  header{
    background:transparent;
  }
  .header-inner{
    display:flex;
    align-items:center;
    padding:26px 40px;
    max-width:var(--maxw);
    margin:0 auto;
  }
  .logo{ display:flex; align-items:center; animation:revealUp .6s cubic-bezier(.16,1,.3,1) both; }
  .logo svg{ height:23px; width:auto; display:block; }

  
  .nav-fixed{
    position:fixed;
    top:0;
    left:0;
    right:0;
    z-index:100;
    pointer-events:none;
  }
  .nav-fixed-inner{
    display:flex;
    justify-content:center;
    align-items:center;
    padding:26px 40px;
    max-width:var(--maxw);
    margin:0 auto;
  }
  .nav-group{
    display:flex;
    align-items:center;
    gap:14px;
    pointer-events:auto;
    transform:translateX(var(--nav-shift, 0px));
    transition:transform 1.1s cubic-bezier(.16,1,.3,1);
    will-change:transform;
    animation:revealFade .6s ease .15s both;
  }
  .nav-fixed.is-scrolled .nav-group{
    transform:translateX(0);
  }

  nav.pill{
    display:flex;
    align-items:center;
    gap:4px;
    background:var(--white);
    border:1px solid var(--line);
    border-radius:999px;
    padding:6px;
  }
  nav.pill a{
    padding:10px 20px;
    font-size:14.5px;
    font-weight:500;
    letter-spacing:-0.02em;
    color:var(--ink-soft);
    border-radius:999px;
    transition:background .18s ease, color .18s ease;
  }
  nav.pill a:hover{ background:var(--cream-deep); color:var(--ink); }

  .menu-toggle{ display:none; }

  
  @keyframes revealUp{
    from{ opacity:0; transform:translateY(24px); }
    to{ opacity:1; transform:translateY(0); }
  }
  @keyframes revealFade{
    from{ opacity:0; }
    to{ opacity:1; }
  }

  .hero{
    padding:70px 40px 0;
    text-align:center;
  }
  .hero-inner{ max-width:900px; margin:0 auto; }
  .hero h1{
    font-size:clamp(40px, 6.2vw, 74px);
    color:var(--ink);
    animation:revealUp .7s cubic-bezier(.16,1,.3,1) both;
  }
  .hero p.sub{
    margin:26px auto 0;
    max-width:520px;
    color:var(--stone);
    font-size:17px;
    line-height:1.55;
    animation:revealUp .7s cubic-bezier(.16,1,.3,1) .1s both;
  }
  .hero-actions{
    display:flex;
    gap:12px;
    justify-content:center;
    margin-top:34px;
    animation:revealUp .7s cubic-bezier(.16,1,.3,1) .2s both;
  }
  .hero-image{
    margin:56px auto 0;
    max-width:var(--maxw);
    border-radius:var(--radius-lg);
    overflow:hidden;
    aspect-ratio: 16/7.2;
    transition:transform .25s ease;
    animation:revealUp .8s cubic-bezier(.16,1,.3,1) .3s both;
  }
  .hero-image:hover{
    transform:translateY(-4px);
  }

  
  .section{ padding:120px 0 0; }
  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:40px;
    margin-bottom:48px;
    flex-wrap:wrap;
  }
  .section-head h2{
    font-size:clamp(30px, 3.4vw, 42px);
    color:var(--stone-light);
  }
  .section-head h2 span{ display:block; color:var(--ink); }
  .section-head h2{color:#777777;}
  .section-head p{
    color:var(--stone);
    max-width:340px;
    font-size:15px;
    line-height:1.6;
    padding-bottom:4px;
  }

  
  .peaks-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:20px;
  }
  .peak-card{
    position:relative;
    border-radius:var(--radius-md);
    overflow:hidden;
    aspect-ratio:4/3.1;
    isolation:isolate;
    transition:transform .25s ease;
  }
  .peak-card .ph{
    transition:transform .6s cubic-bezier(.2,.7,.2,1);
  }
  .peak-card:hover{
    transform:translateY(-4px);
  }
  .peak-card:hover .ph{ transform:scale(1.06); }
  .peak-card::after{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(to top, rgba(10,9,6,0.75) 0%, rgba(10,9,6,0.15) 42%, rgba(10,9,6,0) 65%);
    z-index:1;
  }
  .peak-label{
    position:absolute;
    left:18px; bottom:16px;
    z-index:2;
    color:#fff;
    font-family:var(--font-display);
    font-weight:600;
    font-size:16px;
    letter-spacing:-0.03em;
  }
  .peak-card:nth-child(1){ grid-column:span 1; }

  
  .routes{
    margin-top:150px;
    background:var(--cream-deep);
    padding:110px 0 120px;
  }
  .tabs{
    display:flex;
    gap:34px;
    border-bottom:1px solid var(--line);
    margin-bottom:36px;
  }
  .tab{
    background:none;
    border:none;
    font-family:'Inter', sans-serif;
    font-size:15px;
    font-weight:500;
    color:var(--stone);
    padding:0 0 16px;
    cursor:pointer;
    position:relative;
    top:1px;
  }
  .tab.active{ color:var(--ink); font-weight:600; }
  .tab.active::after{
    content:"";
    position:absolute; left:0; right:0; bottom:-1px;
    height:2px; background:#00205B;
  }
  .routes-track{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    gap:20px;
    transition:opacity .18s ease;
  }
  .routes-track.track-out{
    opacity:0;
  }
  .route-card{
    position:relative;
    border-radius:var(--radius-md);
    overflow:hidden;
    aspect-ratio:3.5/4.6;
    isolation:isolate;
    transition:transform .25s ease;
    animation:routeCardIn .45s cubic-bezier(.16,1,.3,1) backwards;
  }
  .route-card:nth-child(1){ animation-delay:.02s; }
  .route-card:nth-child(2){ animation-delay:.07s; }
  .route-card:nth-child(3){ animation-delay:.12s; }
  .route-card:nth-child(4){ animation-delay:.17s; }
  @keyframes routeCardIn{
    from{ opacity:0; transform:translateY(14px); }
    to{ opacity:1; transform:translateY(0); }
  }
  .route-card .ph{
    transition:transform .6s cubic-bezier(.2,.7,.2,1);
  }
  .route-card:hover{
    transform:translateY(-4px);
  }
  .route-card:hover .ph{ transform:scale(1.06); }
  .route-card::after{
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(to top, rgba(10,9,6,0.85) 0%, rgba(10,9,6,0.2) 45%, rgba(10,9,6,0) 68%);
    z-index:1;
  }
  .route-body{
    position:absolute; left:18px; right:18px; bottom:16px; z-index:2; color:#fff;
  }
  .route-body .route-name{
    font-family:var(--font-display);
    font-weight:600;
    font-size:18px;
    line-height:1.18;
    letter-spacing:-0.03em;
  }
  .route-body .route-name .arrow{ color:rgba(255,255,255,0.7); font-weight:500; }
  .route-body .route-time{
    margin-top:6px;
    font-size:13px;
    color:rgba(255,255,255,0.75);
    font-weight:500;
  }


  .section-band{
    margin-top:150px;
    padding:110px 0 120px;
  }


  .features-grid{
    display:grid;
    grid-template-columns:repeat(2, 1fr);
    gap:20px;
    margin-bottom:100px;
  }
  .feature-card{
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    padding:36px;
    transition:transform .25s ease;
  }
  .feature-card:hover{
    transform:translateY(-4px);
  }
  .feature-icon svg{
    width:30px;
    height:30px;
    display:block;
    margin-bottom:22px;
    fill:none;
    stroke:var(--red);
    stroke-width:1.6;
    stroke-linecap:round;
    stroke-linejoin:round;
  }
  .feature-card h3{
    font-family:var(--font-display);
    font-size:19px;
    font-weight:600;
    letter-spacing:-0.02em;
    margin-bottom:10px;
  }
  .feature-card p{
    color:var(--stone);
    font-size:14.5px;
    line-height:1.6;
  }


  .seasons-grid{
    display:grid;
    grid-template-columns:repeat(4, minmax(0, 1fr));
    gap:20px;
    align-items:start;
  }
  .season-card{
    transition:transform .25s ease;
  }
  .season-card:hover{
    transform:translateY(-4px);
  }
  .season-card .ph{
    height:auto;
    border-radius:var(--radius-md);
    aspect-ratio:1/1.05;
  }
  .season-name{
    display:block;
    margin-top:16px;
    font-family:var(--font-display);
    font-weight:600;
    font-size:16px;
    letter-spacing:-0.02em;
  }
  .season-range{
    display:block;
    margin-top:2px;
    color:var(--stone);
    font-size:13px;
  }


  .cta{
    background:var(--cream-deep);
    padding:130px 0;
    text-align:center;
  }
  .cta h2{
    font-size:clamp(34px, 4.5vw, 54px);
    color:var(--ink);
  }
  .cta p{
    margin:20px auto 0;
    max-width:480px;
    color:var(--stone);
    font-size:16px;
    line-height:1.6;
  }
  .cta .btn{ margin-top:32px; }


  footer{
    background:var(--cream-deep);
    padding:70px 0 0;
  }
  .footer-top{
    display:flex;
    justify-content:space-between;
    gap:40px;
    padding-top:34px;
    padding-bottom:56px;
    border-top:1px solid var(--line);
  }
  footer .logo svg{ height:19px; }
  .footer-brand{ max-width:340px; }
  .footer-brand p{
    margin-top:18px;
    color:var(--stone);
    font-size:14px;
    line-height:1.6;
  }
  .footer-cols{ display:flex; gap:80px; }
  .footer-col h4{
    font-family:var(--font-display);
    font-size:14px;
    font-weight:600;
    margin-bottom:16px;
  }
  .footer-col a{
    display:block;
    font-size:14px;
    color:var(--stone);
    margin-bottom:12px;
  }
  .footer-col a:hover{ color:var(--ink); }
  .footer-bar{
    background:var(--red);
  }
  .footer-bar-inner{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:20px;
    padding:18px 40px;
    flex-wrap:wrap;
  }
  .footer-bar .footer-note{ font-size:12.5px; color:rgba(255,255,255,0.9); }
  .footer-coords{ font-size:12.5px; color:rgba(255,255,255,0.9); }

  /* ---------- Scroll reveal (progressive enhancement, requires JS) ---------- */
  html.js .section-head,
  html.js .peak-card,
  html.js .feature-card,
  html.js .season-card,
  html.js .footer-top,
  html.js .footer-bar-inner,
  html.js .cta-inner{
    opacity:0;
  }
  html.js .section-head.in-view,
  html.js .peak-card.in-view,
  html.js .feature-card.in-view,
  html.js .season-card.in-view,
  html.js .footer-top.in-view,
  html.js .footer-bar-inner.in-view,
  html.js .cta-inner.in-view{
    animation:revealUp .6s cubic-bezier(.16,1,.3,1) both;
  }
  html.js .peak-card:nth-child(2).in-view{ animation-delay:.06s; }
  html.js .peak-card:nth-child(3).in-view{ animation-delay:.12s; }
  html.js .peak-card:nth-child(4).in-view{ animation-delay:.18s; }
  html.js .peak-card:nth-child(5).in-view{ animation-delay:.24s; }
  html.js .peak-card:nth-child(6).in-view{ animation-delay:.3s; }
  html.js .feature-card:nth-child(2).in-view{ animation-delay:.08s; }
  html.js .feature-card:nth-child(3).in-view{ animation-delay:.16s; }
  html.js .feature-card:nth-child(4).in-view{ animation-delay:.24s; }
  html.js .season-card:nth-child(2).in-view{ animation-delay:.08s; }
  html.js .season-card:nth-child(3).in-view{ animation-delay:.16s; }
  html.js .season-card:nth-child(4).in-view{ animation-delay:.24s; }

  html.js .section-head.revealed,
  html.js .peak-card.revealed,
  html.js .feature-card.revealed,
  html.js .season-card.revealed,
  html.js .footer-top.revealed,
  html.js .footer-bar-inner.revealed,
  html.js .cta-inner.revealed{
    opacity:1;
    animation:none;
  }

  
  @media (max-width: 900px){
    .wrap, .header-inner, .nav-fixed-inner{ padding-left:24px; padding-right:24px; }
    nav.pill{ display:none; }
    .nav-group{ gap:0; }
    .hero{ padding:44px 24px 0; }
    .hero h1{ font-size:clamp(34px, 8vw, 48px); }
    .hero-image{ margin-top:40px; border-radius:20px; aspect-ratio:4/3.3; }
    .section{ padding-top:90px; }
    .section-head{ margin-bottom:28px; }
    .section-head p{ max-width:100%; }
    .peaks-grid{ grid-template-columns:1fr; gap:16px; }
    .peak-card{ aspect-ratio:16/11; }
    .routes{ margin-top:100px; padding:80px 0 90px; }
    .routes-track{ grid-template-columns:repeat(2, 1fr); }
    .route-card{ aspect-ratio:1/1.15; }
    .section-band{ margin-top:100px; padding:80px 0 90px; }
    .features-grid{ grid-template-columns:1fr; margin-bottom:70px; }
    .feature-card{ padding:28px; }
    .seasons-grid{ grid-template-columns:repeat(2, minmax(0, 1fr)); }
    .cta{ padding:90px 0; }
    footer{ padding:50px 0 0; }
    .footer-top{ flex-direction:column; align-items:flex-start; padding-bottom:40px; }
    .footer-cols{ gap:50px; }
    .footer-bar-inner{ padding:16px 24px; }
  }

  @media (max-width: 520px){
    .header-inner{ padding-top:20px; padding-bottom:20px; }
    .nav-fixed-inner{ padding-top:20px; padding-bottom:20px; }
    .logo svg{ height:19px; }
    .btn{ padding:12px 20px; font-size:14px; }
    .hero-actions{ flex-direction:column; width:100%; }
    .hero-actions .btn{ width:100%; }
    .routes-track{ grid-template-columns:1fr; }
    .route-card{ aspect-ratio:16/11; }
    .tabs{ gap:22px; overflow-x:auto; }
  }

  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior:auto; }
    .peak-card img, .btn, .nav-group{ transition:none; }
    .routes-track{ transition:none; }
    .route-card{ animation:none; }
    .hero h1, .hero p.sub, .hero-actions, .hero-image, .logo, .nav-group{ animation:none; opacity:1; }
    html.js .section-head,
    html.js .peak-card,
    html.js .feature-card,
    html.js .season-card,
    html.js .footer-top,
    html.js .footer-bar-inner,
    html.js .cta-inner{
      opacity:1;
      animation:none;
    }
  }