/* ===========================================================
   CityFreighter x Vohringer — RV Demonstrator microsite
   =========================================================== */

:root{
  --navy-900:#0a0e18;
  --navy-800:#101828;
  --navy-700:#161f33;
  --navy-600:#22304a;
  --amber:#d98a3d;
  --amber-light:#f0ac5f;
  --paper:#f6f5f1;
  --paper-dim:#ece9e1;
  --ink:#171a1f;
  --ink-dim:#565c66;
  --white:#ffffff;
  --line:rgba(255,255,255,0.12);
  --line-dark:rgba(23,26,31,0.12);
  --radius:10px;
  --maxw:1180px;
  --shadow:0 20px 50px -20px rgba(10,14,24,0.45);
  --serif:"Iowan Old Style","Georgia","Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
section{padding:88px 0;}
@media (max-width:720px){section{padding:56px 0;}}

.eyebrow{
  display:inline-block;
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:700;
  color:var(--amber);
  margin-bottom:14px;
}
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);}
h3{font-size:1.3rem;}
p{margin:0 0 1em;}
.lede{font-size:1.15rem;color:var(--ink-dim);max-width:64ch;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--amber);color:var(--navy-900);}
.btn-primary:hover{background:var(--amber-light);}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,0.4);}
.btn-ghost:hover{border-color:var(--white);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line-dark);}
.btn-outline:hover{border-color:var(--ink);}

/* ---------- Nav ---------- */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;
  background:linear-gradient(to bottom, rgba(10,14,24,.78), rgba(10,14,24,0));
  color:var(--white);
  transition:background .25s ease, padding .25s ease, box-shadow .25s ease;
}
.site-nav.scrolled{
  background:rgba(10,14,24,.92);
  backdrop-filter:blur(8px);
  padding:12px 28px;
  box-shadow:0 4px 24px rgba(0,0,0,.25);
}
.brand{
  display:flex;flex-direction:column;line-height:1.05;
  text-decoration:none;color:var(--white);
}
.brand strong{font-family:var(--serif);font-size:1.12rem;letter-spacing:.01em;}
.brand span{font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-light);margin-top:2px;}
.nav-links{display:flex;gap:28px;list-style:none;margin:0;padding:0;}
.nav-links a{
  font-size:.86rem;text-decoration:none;color:rgba(255,255,255,.85);
  padding:6px 0;border-bottom:1px solid transparent;
}
.nav-links a:hover{color:var(--white);border-color:var(--amber);}
.nav-toggle{display:none;background:none;border:0;color:var(--white);font-size:1.4rem;cursor:pointer;}

@media (max-width:860px){
  .nav-links{
    position:fixed;inset:0 0 0 auto;height:100vh;width:min(320px,80vw);
    background:var(--navy-900);flex-direction:column;padding:96px 32px 32px;
    gap:22px;transform:translateX(100%);transition:transform .3s ease;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{display:block;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  color:var(--white);
  background:#111 center/cover no-repeat;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(8,11,18,.35) 0%, rgba(8,11,18,.25) 40%, rgba(6,9,15,.92) 100%);
}
.hero-inner{position:relative;z-index:1;width:100%;padding-bottom:80px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);
  padding:7px 14px;border-radius:999px;margin-bottom:22px;backdrop-filter:blur(6px);
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block;}
.hero h1{
  font-size:clamp(2.4rem,6vw,4.6rem);
  max-width:16ch;
  margin-bottom:.28em;
}
.hero h1 em{font-style:normal;color:var(--amber-light);}
.hero .lede{color:rgba(255,255,255,.82);font-size:1.2rem;max-width:52ch;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px;}
.scroll-cue{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  z-index:1;width:22px;height:36px;border:2px solid rgba(255,255,255,.5);
  border-radius:12px;
}
.scroll-cue::before{
  content:"";position:absolute;top:6px;left:50%;width:4px;height:8px;
  background:var(--amber);border-radius:2px;transform:translateX(-50%);
  animation:cue 1.8s infinite;
}
@keyframes cue{0%{opacity:1;top:6px;}100%{opacity:0;top:18px;}}

/* ---------- Stats ---------- */
.stats-band{background:var(--navy-900);color:var(--white);}
.stats-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  border-top:1px solid var(--line);
}
.stat{
  padding:34px 18px;text-align:center;border-left:1px solid var(--line);
}
.stat:first-child{border-left:none;}
.stat .num{font-family:var(--serif);font-size:clamp(1.5rem,2.6vw,2.2rem);color:var(--amber-light);display:block;margin-bottom:6px;}
.stat .lbl{font-size:.76rem;letter-spacing:.05em;color:rgba(255,255,255,.65);}
@media (max-width:860px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat{border-left:none;border-top:1px solid var(--line);}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
}

/* ---------- Overview / two-col ---------- */
.overview{background:var(--paper);}
.two-col{
  display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;
}
@media (max-width:860px){.two-col{grid-template-columns:1fr;gap:36px;}}
.pull-quote{
  border-left:3px solid var(--amber);
  padding:4px 0 4px 22px;
  font-family:var(--serif);
  font-size:1.3rem;
  color:var(--navy-800);
  margin:26px 0;
}
.pull-quote cite{
  display:block;font-family:var(--sans);font-style:normal;
  font-size:.82rem;color:var(--ink-dim);margin-top:10px;
}
.feature-list{list-style:none;margin:0;padding:0;display:grid;gap:18px;}
.feature-list li{
  display:flex;gap:14px;padding:18px;background:var(--white);
  border:1px solid var(--line-dark);border-radius:var(--radius);
}
.feature-list .ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  background:rgba(217,138,61,.12);color:var(--amber);
  display:flex;align-items:center;justify-content:center;font-weight:700;
}
.feature-list h4{margin:0 0 4px;font-family:var(--sans);font-size:1rem;font-weight:700;}
.feature-list p{margin:0;font-size:.92rem;color:var(--ink-dim);}

/* ---------- Video ---------- */
.video-section{background:var(--navy-900);color:var(--white);}
.video-section .section-head p{color:rgba(255,255,255,.7);}
.video-frame{
  position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);
  background:#000;
  width:fit-content;max-width:100%;margin:0 auto;
}
.video-frame video{display:block;width:auto;height:auto;max-width:100%;max-height:78vh;background:#000;}

/* ---------- Platform diagram ---------- */
.platform{background:var(--paper-dim);}
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:20px;}
@media (max-width:940px){.platform-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:520px){.platform-grid{grid-template-columns:1fr;}}
.platform-card{
  background:var(--white);border:1px solid var(--line-dark);border-radius:var(--radius);
  padding:26px 22px;text-align:left;
}
.platform-card .tag{
  display:inline-block;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--amber);font-weight:700;margin-bottom:10px;
}
.platform-card h4{font-family:var(--sans);font-size:1.02rem;margin:0 0 8px;}
.platform-card p{font-size:.88rem;color:var(--ink-dim);margin:0;}
.platform-note{margin-top:36px;display:grid;grid-template-columns:repeat(5,1fr);gap:22px;}
@media (max-width:860px){.platform-note{grid-template-columns:repeat(2,1fr);}}
.platform-note div{
  background:var(--navy-900);color:var(--white);border-radius:var(--radius);
  padding:18px 16px;
}
.platform-note h5{font-family:var(--sans);font-size:.82rem;margin:0 0 6px;color:var(--amber-light);text-transform:uppercase;letter-spacing:.06em;}
.platform-note p{margin:0;font-size:.84rem;color:rgba(255,255,255,.75);}

/* ---------- Gallery ---------- */
.gallery-section{background:var(--paper);}
.gallery-tabs{display:flex;gap:10px;margin-bottom:30px;flex-wrap:wrap;}
.gallery-tab{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line-dark);
  background:var(--white);font-size:.86rem;font-weight:600;cursor:pointer;color:var(--ink-dim);
}
.gallery-tab.active{background:var(--navy-900);color:var(--white);border-color:var(--navy-900);}
.gallery-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
}
@media (max-width:940px){.gallery-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:640px){.gallery-grid{grid-template-columns:repeat(2,1fr);}}
.gallery-item{
  position:relative;border-radius:8px;overflow:hidden;cursor:pointer;
  aspect-ratio:4/3;background:var(--paper-dim);
}
.gallery-item img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.gallery-item:hover img{transform:scale(1.06);}
.gallery-item .cap{
  position:absolute;left:0;right:0;bottom:0;padding:20px 10px 8px;
  background:linear-gradient(to top, rgba(0,0,0,.75), transparent);
  color:var(--white);font-size:.74rem;opacity:0;transition:opacity .25s ease;
}
.gallery-item:hover .cap{opacity:1;}
.gallery-panel{display:none;}
.gallery-panel.active{display:block;}
.gallery-more{
  text-align:center;margin-top:22px;
}

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed;inset:0;z-index:1000;background:rgba(6,8,13,.94);
  display:none;align-items:center;justify-content:center;flex-direction:column;
  padding:40px 20px;
}
.lightbox.open{display:flex;}
.lightbox img{max-width:min(1100px,92vw);max-height:72vh;border-radius:6px;box-shadow:0 30px 80px rgba(0,0,0,.6);}
.lightbox .cap{color:var(--white);margin-top:16px;font-size:.95rem;text-align:center;max-width:70ch;}
.lightbox .count{color:rgba(255,255,255,.55);font-size:.8rem;margin-top:6px;}
.lightbox-close,.lightbox-nav{
  position:absolute;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);
  color:var(--white);width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.1rem;
}
.lightbox-close{top:22px;right:22px;}
.lightbox-nav.prev{left:16px;top:50%;transform:translateY(-50%);}
.lightbox-nav.next{right:16px;top:50%;transform:translateY(-50%);}
@media (max-width:640px){
  .lightbox-nav{width:38px;height:38px;}
  .lightbox-nav.prev{left:6px;}
  .lightbox-nav.next{right:6px;}
}

/* ---------- Story ---------- */
.story{background:var(--navy-800);color:var(--white);}
.story .section-head p{color:rgba(255,255,255,.68);}
.story-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start;}
@media (max-width:860px){.story-grid{grid-template-columns:1fr;}}
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line);}
.timeline li{position:relative;padding:0 0 30px 26px;}
.timeline li::before{
  content:"";position:absolute;left:-7px;top:4px;width:12px;height:12px;
  border-radius:50%;background:var(--amber);border:3px solid var(--navy-800);
}
.timeline .yr{font-family:var(--serif);color:var(--amber-light);font-size:1.05rem;display:block;margin-bottom:4px;}
.timeline p{margin:0;font-size:.92rem;color:rgba(255,255,255,.78);}
.story-copy p{color:rgba(255,255,255,.82);}
.story-copy .pull-quote{color:var(--white);border-color:var(--amber);}
.story-copy .pull-quote cite{color:rgba(255,255,255,.55);}

/* ---------- Partners ---------- */
.partners{background:var(--paper);}
.partner-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:10px;
}
@media (max-width:860px){.partner-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:560px){.partner-grid{grid-template-columns:repeat(2,1fr);}}
.partner-card{
  background:var(--white);border:1px solid var(--line-dark);border-radius:var(--radius);
  padding:20px 16px;text-align:center;
}
.partner-card strong{display:block;font-size:.95rem;margin-bottom:4px;}
.partner-card span{font-size:.76rem;color:var(--ink-dim);}

/* ---------- Press / CTA ---------- */
.press{background:var(--navy-900);color:var(--white);}
.press-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px;}
@media (max-width:900px){.press-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:600px){.press-grid{grid-template-columns:1fr;}}
.press-card{
  background:var(--navy-700);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;gap:14px;
}
.press-card h4{font-family:var(--sans);margin:0;font-size:1.05rem;}
.press-card p{margin:0;font-size:.88rem;color:rgba(255,255,255,.68);flex:1;}

/* ---------- Footer ---------- */
footer{background:var(--navy-900);color:rgba(255,255,255,.55);padding:34px 0;border-top:1px solid var(--line);}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:.8rem;}
footer a{color:rgba(255,255,255,.75);text-decoration:none;}
footer a:hover{color:var(--amber-light);}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}