/* =========================
   BatchForge.ai — styles.css
   Readability + Interactivity Upgrade (v2)
   ========================= */

/* ---------- Theme Tokens ---------- */
:root{
  --bg:#0b0f14;
  --bg-dark:#040507;
  --panel:#121821;
  --card:#0e1522;
  --text:#eaf2ff;
  --muted:#a9bbcf; /* slightly brighter for contrast */
  --brand-hue:200;
  --brand:hsl(var(--brand-hue) 70% 52%);
  --brand-2:hsl(var(--brand-hue) 80% 64%);
  --border:rgba(255,255,255,.14);
  --shadow:0 12px 30px rgba(0,0,0,.38);

  /* from HTML overrides */
  --accent:hsl(185,70%,55%);
  --glass:rgba(255,255,255,0.06);

  /* Typography scale */
  --fs-base: clamp(17px, 1.15vw, 19px);
  --fs-sm: clamp(14px, .95vw, 16px);
  --fs-xs: 12.5px;
  --fs-h2: clamp(30px, 3.6vw, 42px);
  --fs-h1: clamp(34px, 4.8vw, 50px);
  --lh-base: 1.75;
  --lh-tight: 1.25;
  --lh-head: 1.12;
}

/* ---------- Resets ---------- */
*{ box-sizing:border-box }
html,body{ height:100%; scroll-behavior:smooth }
body{
  margin:0;
  font:400 var(--fs-base)/var(--lh-base) Inter, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial;
  color:var(--text);
  background:
    radial-gradient(120% 120% at 20% -10%, rgba(90,150,255,.08), transparent 40%)
    var(--bg-dark);
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img,video{ max-width:100%; display:block }

/* Make links readable & obviously interactive */
a{
  color:var(--text);
  text-underline-offset:3px;
  text-decoration-thickness:1.5px;
  transition:color .18s ease, text-underline-offset .18s ease;
}
a:hover{
  color:var(--brand-2);
  text-underline-offset:4px;
}

/* Accessibility helpers */
.screen-reader-text{
  position:absolute !important;
  width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}
.skip-link{
  position:absolute; left:8px; top:-40px;
  padding:10px 14px; background:#0e1522; color:#fff; border-radius:10px;
  border:1px solid var(--border); z-index:1000; text-decoration:none;
  transition:top .2s ease;
  font-weight:700;
}
.skip-link:focus{ top:8px }

/* Stronger focus rings for keyboard users */
:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(80,150,255,.38), 0 0 0 1px rgba(255,255,255,.1) inset;
  border-color:rgba(120,170,255,.7);
  border-radius:12px;
}

/* Subtle animated ambient gradient */
body::after{
  content:"";
  position:fixed; inset:-20% -20%;
  background:
    radial-gradient(60% 60% at 75% 10%, rgba(70,120,255,.06), transparent 60%),
    radial-gradient(40% 40% at 20% 80%, rgba(80,220,255,.05), transparent 65%);
  animation:ambientShift 32s linear infinite;
  z-index:-1; pointer-events:none;
}
@keyframes ambientShift{
  0%{ transform:translate3d(0,0,0) rotate(0deg) }
  50%{ transform:translate3d(2%,-1%,0) rotate(6deg) }
  100%{ transform:translate3d(0,0,0) rotate(0deg) }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important }
}

/* Higher contrast, if user requests */
@media (prefers-contrast: more){
  :root{ --border:rgba(255,255,255,.22) }
  a{text-decoration-thickness:2px}
}

/* ---------- Layout Helpers ---------- */
.container{ max-width:1440px; margin:0 auto; padding:0 22px }
.section{ padding:clamp(48px,8.5vh,96px) 0 }
.section-head{ max-width:880px; margin-bottom:30px }
.section-head h2{ margin:0 0 12px; font-size:var(--fs-h2); line-height:var(--lh-head) }
.section-head p{ margin:0; color:var(--muted) }
.lead{ font-size:clamp(18px,1.4vw,21px); line-height:1.82; color:var(--muted) }
.measure{ max-width:72ch } /* comfortable reading width */

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background:rgba(7,10,16,.65);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  height:68px; display:flex; align-items:center; justify-content:space-between;
}
.brand{ display:inline-flex; gap:10px; align-items:center; text-decoration:none; color:var(--text) }
.brand-mark{ width:14px; height:14px; border-radius:50%; background:var(--brand) }
.brand-text{ font-weight:800; letter-spacing:.02em; font-size:clamp(16px,1.2vw,18px) }
.main-nav{ display:flex; gap:20px; align-items:center }
.main-nav a{ color:var(--text); text-decoration:none; opacity:.9; font-weight:600; font-size:var(--fs-sm) }
.main-nav a:hover{ color:var(--brand-2) }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:13px 20px; border-radius:12px;
  background:linear-gradient(135deg, var(--brand), var(--brand-2));
  color:#08121a; text-decoration:none; font-weight:800;
  font-size:clamp(15px,1.1vw,17px);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:transform .15s ease, filter .15s ease, background .15s ease, box-shadow .15s ease;
  will-change:transform;
}
.btn:hover{ transform:translateY(-2px); filter:brightness(1.06) }
.btn:active{ transform:translateY(0) }
.btn-ghost{ background:transparent; color:var(--text); border:1px solid var(--border) }
.btn-small{ padding:10px 14px; border-radius:10px; font-size:var(--fs-sm) }

/* CTA hover polish */
.btn{ transition:all .25s ease }
.btn:hover{ transform:translateY(-3px); box-shadow:0 8px 22px rgba(0,255,255,.22) }

/* ---------- HERO ---------- */
.hero{
  padding:clamp(28px,6vh,54px) 0;
  min-height:100vh;
  position:relative; display:flex; align-items:center;
  background:
    radial-gradient(60% 60% at 70% 20%, rgba(80,140,255,.10), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,.20), rgba(0,0,0,0) 40%);
  border-radius:18px;
}

.hero-grid{
  display:grid;
  /* left | center (wider) | right */
  grid-template-columns:.95fr minmax(640px,1.35fr) .9fr;
  gap:clamp(18px,3vw,34px);
  align-items:start;
}
.hero-col{ display:flex; flex-direction:column; gap:14px }

.hero-left{ position:sticky; top:12vh; align-self:start }
.hero-right{
  position:sticky; top:10vh; align-self:start;
  max-height:calc(100vh - 12vh);
  overflow:auto;
  gap:16px;
}

/* Typographic polish */
.kicker{
  font-size:var(--fs-sm); letter-spacing:.12em; text-transform:uppercase;
  color:var(--brand); opacity:.95; font-weight:800;
}
.hero-title{
  font-size:var(--fs-h1); line-height:var(--lh-head); margin:0;
  text-shadow:0 2px 12px rgba(0,0,0,.25);
  letter-spacing:.01em;
}
.hero-subtitle, .hero-subtext, .hero-note p{ color:var(--muted) }
.cta-row{ display:flex; gap:12px; flex-wrap:wrap; margin-top:8px }

/* 3D stage */
.hero-center{ align-items:stretch }
.drone-stage{
  position:relative; width:100%;
  height:clamp(580px,78vh,1020px);
  margin-top:8px;
  border-radius:16px; overflow:hidden;
  background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  box-shadow:var(--shadow);
}
#drone-visual, .bubble-container, .batch-layer{ position:absolute; inset:0 }
#drone-visual canvas{ width:100%; height:100%; display:block }

/* ---------- Glass utility ---------- */
.glass{
  background:rgba(17,24,38,.7);
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:0 8px 26px rgba(0,0,0,.3);
  padding:14px 18px;
}

/* ---------- Bubbles (scale with viewport) ---------- */
.bubble-container{ pointer-events:none; z-index:3 }
.ai-bubble{
  pointer-events:auto;
  position:absolute;
  width:clamp(32px,3.6vw,50px);
  height:clamp(32px,3.6vw,50px);
  border-radius:50%;
  background:radial-gradient(circle, hsla(var(--brand-hue),70%,52%,.35), transparent 70%);
  border:1px solid var(--border);
  box-shadow:0 0 20px hsla(var(--brand-hue),80%,60%,.28);
  animation:float 8s ease-in-out infinite;
  transition:transform .18s ease, opacity .18s ease, box-shadow .18s ease, filter .18s ease;
  will-change:transform, filter;
}
.ai-bubble:hover{ transform:scale(1.22); box-shadow:0 0 34px hsla(var(--brand-hue),90%,60%,.48); filter:saturate(1.1) }
.ai-bubble.active{ animation:pulse 1s infinite }
.ai-bubble.selected{ opacity:.35 }
.ai-bubble::after{
  content:attr(data-label);
  position:absolute; left:50%; bottom:-38px; transform:translateX(-50%);
  background:rgba(0,0,0,.78); color:var(--text);
  border:1px solid rgba(255,255,255,.1); border-radius:8px;
  padding:7px 11px; font-size:13px; white-space:nowrap; opacity:0; transition:opacity .2s ease;
  pointer-events:none;
}
.ai-bubble:hover::after{ opacity:1 }

/* In-flight clones */
.flyer{ width:clamp(32px,3.6vw,50px); height:clamp(32px,3.6vw,50px); border-radius:50%; overflow:hidden; box-shadow:0 6px 22px rgba(0,0,0,.35) }
.bubble-fly-label{
  padding:7px 11px; border-radius:999px; background:rgba(10,12,18,.9);
  color:var(--text); border:1px solid rgba(255,255,255,.12); font:800 12.5px/1 system-ui;
}

/* Toast + status */
.mode-toast{
  display:inline-flex; align-items:baseline; gap:8px;
  padding:9px 12px; border-radius:10px;
  background:rgba(0,0,0,.35); backdrop-filter:blur(6px);
  border:1px solid var(--border);
  font-size:var(--fs-sm);
}
.mode-prefix{ opacity:.85; font-size:12.5px; text-transform:uppercase; letter-spacing:.06em; font-weight:800 }
.mode-name{ font-weight:800 }
.batch-status{ font-size:var(--fs-sm); opacity:.9 }

/* ---------- Unified Skills (bubble-viewer) ---------- */
#bubble-viewer .vending-list{
  list-style:none; margin:8px 0 0; padding:0;
  display:flex; flex-direction:column; gap:10px;
}
#bubble-viewer .vending-item{
  padding:12px 14px; border-radius:14px; border:1px solid var(--border);
  background:var(--glass); cursor:pointer;
  transition:all .25s ease;
  font-weight:650;
}
#bubble-viewer .vending-item:hover{
  background:rgba(255,255,255,.09); transform:translateX(2px);
}
#bubble-viewer .vending-item.selected{
  outline:2px solid var(--accent); background:rgba(80,200,255,.1); transform:scale(1.02);
}

/* ---------- Legend / System Status (right rail) ---------- */
.legend{ padding:16px 18px; font-size:var(--fs-sm) }
.legend--panel{ position:static; margin-top:8px }
.legend-title{ font-weight:850; margin-bottom:10px; letter-spacing:.02em }
.legend .row{
  display:flex; gap:10px; align-items:center; padding:8px 0;
  border-bottom:1px dashed rgba(255,255,255,.1);
}
.legend .row:last-child{ border-bottom:0 }
.legend .sw{ width:12px; height:12px; border-radius:50%; border:1px solid rgba(255,255,255,.25) }
.legend .sw.edge{ background:#00d47b }
.legend .sw.esc{ background:#ffcf4a }
.legend .sw.off{ background:#ff5b5b }
.legend .sw.core{ background:#30e0a1 }
.legend .sw.ram{ background:#e5c45e }
.legend .sw.storage{ background:#e57373 }
.legend .counter{ margin-left:auto; opacity:.96; font-weight:750 }

/* Explicit utility container if used elsewhere */
.status-rail{
  position:sticky; top:10vh;
  display:grid; gap:12px;
}
.status-card{
  background:rgba(14,21,34,.82);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  border:1px solid var(--border);
  border-radius:14px;
  padding:16px;
}
.status-card h4{
  margin:0 0 8px;
  font-size:13.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--muted);
}

/* ---------- CARDS & GRIDS ---------- */
.section-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px;
  box-shadow:0 4px 18px rgba(0,0,0,.27);
}
.card h3{ margin:0 0 10px; font-size:clamp(18px,1.35vw,22px); line-height:var(--lh-tight) }
.card p{ margin:0; color:var(--muted) }

.hoverable{ transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease }
.hoverable:hover{
  transform:translateY(-2px);
  border-color:rgba(120,170,255,.38);
  box-shadow:0 14px 30px rgba(0,0,0,.38);
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
}

/* Product grid (three-up) */
.product-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:18px;
}
.product.card ul{ margin:10px 0 0; padding-left:20px; color:var(--muted) }
.product.card li{ margin:6px 0 }

/* ---------- OS Skill Selector ---------- */
.os-grid{
  display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:18px;
}
@media (max-width:1000px){ .os-grid{ grid-template-columns:repeat(2,1fr) } }
@media (max-width:640px){ .os-grid{ grid-template-columns:1fr } }

.os-card{
  position:relative; overflow:hidden; border-radius:16px;
  border:1px solid var(--border);
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  color:var(--text); text-align:left; padding:18px 18px 20px;
  display:grid; grid-template-columns:40px 1fr auto;
  grid-template-areas:"icon title selected" "icon tags selected";
  gap:10px 12px; cursor:pointer;
  box-shadow:0 8px 24px rgba(0,0,0,.26);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease, outline .18s ease;
}
.os-card:hover{
  transform:translateY(-2px);
  border-color:rgba(120,170,255,.4);
  box-shadow:0 18px 36px rgba(0,0,0,.34);
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
}
.os-card:active{ transform:translateY(0) }
.os-card:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(80,150,255,.28), 0 12px 28px rgba(0,0,0,.34);
  border-color:rgba(120,170,255,.7);
}
.os-card .os-card-glow{
  position:absolute; inset:-30%;
  background:
    radial-gradient(40% 40% at 0% 0%, rgba(80,150,255,.15), transparent 60%),
    radial-gradient(30% 30% at 100% 0%, rgba(120,220,255,.12), transparent 60%);
  filter:blur(24px); opacity:.0; pointer-events:none;
  transition:opacity .25s ease, transform .25s ease;
  transform:translate3d(0,0,0);
}
.os-card:hover .os-card-glow{ opacity:.85; transform:translate3d(2%,-2%,0) }

.os-icon{ grid-area:icon; display:grid; place-items:center; color:var(--brand-2); font-size:18px }
.os-title{ grid-area:title; font-weight:850; letter-spacing:.01em; font-size:clamp(16px,1.2vw,18px) }
.os-tags{ grid-area:tags; display:flex; gap:8px; flex-wrap:wrap; margin-top:2px }
.os-tags span{
  display:inline-flex; align-items:center; gap:6px;
  font:800 12.5px/1 system-ui;
  padding:7px 10px; border-radius:999px;
  background:rgba(12,18,26,.72);
  border:1px solid rgba(255,255,255,.12);
  color:#cfe4ff;
}
.os-selected{
  grid-area:selected; align-self:start;
  display:inline-flex; align-items:center; gap:8px;
  font-weight:850; font-size:12.5px; letter-spacing:.02em;
  color:#aecdff; opacity:.0; transform:translateY(-2px);
  transition:opacity .18s ease, transform .18s ease, color .18s ease;
}
.os-selected .dot{
  width:10px; height:10px; border-radius:50%;
  background:#6aa2ff; box-shadow:0 0 10px #6aa2ff88;
}
.os-card.is-active{
  border-color:rgba(120,170,255,.58);
  box-shadow:0 10px 38px rgba(0,0,0,.38), 0 0 0 1px rgba(120,170,255,.26) inset;
  background:linear-gradient(180deg, rgba(90,140,255,.11), rgba(255,255,255,.02));
}
.os-card.is-active .os-selected{ opacity:1; transform:translateY(0); color:#eaf2ff }
.os-card.is-active .os-card-glow{ opacity:1 }

/* ---------- Dynamic How/Stack & Flip Cards ---------- */
.section.container#stack{ scroll-margin-top:84px }
.stack-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(180px,1fr));
  gap:20px; margin:26px 0;
}
.flipcard{ perspective:900px; cursor:pointer }
.flip-inner{ position:relative; transition:transform .6s; transform-style:preserve-3d }
.flipcard:hover .flip-inner,
.flipcard:focus-within .flip-inner,
.flipcard.flipped .flip-inner{ transform:rotateY(180deg) }
.flip-front,.flip-back{
  position:absolute; inset:0; padding:22px; border-radius:12px;
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  backface-visibility:hidden; display:flex; flex-direction:column; justify-content:center; align-items:center; text-align:center;
  transition:background .3s;
}
.flip-front:hover{ background:rgba(255,255,255,.08) }
.flip-back{ transform:rotateY(180deg); background:rgba(255,255,255,.1) }
.flip-front h3{ margin:.25rem 0 .35rem 0; font-size:clamp(16px,1.2vw,18px) }
.flip-front p,.flip-back p{ margin:0; color:var(--muted) }

.mini-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:16px; margin:42px 0 26px;
}
.mini-card{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px; padding:18px; text-align:center;
  transition:transform .25s, background .25s, border-color .25s;
}
.mini-card:hover{ transform:translateY(-4px); background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.18) }
.mini-card h4{ margin:.1rem 0 .35rem 0; font-size:clamp(15px,1.1vw,17px) }

.industry-row{ display:flex; flex-wrap:wrap; gap:18px; justify-content:center; margin-top:22px }
.industry-row div{
  background:rgba(255,255,255,.04);
  padding:12px 18px; border-radius:8px; text-align:center; transition:background .25s, border-color .25s;
  border:1px solid rgba(255,255,255,.08);
}
.industry-row div:hover{ background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.14) }
.industry-row span{ display:block; color:var(--muted); font-size:.95em }

/* Scroll-reveal (reduced-motion safe) */
.reveal{ opacity:1 } /* default shown if no JS */
@media (prefers-reduced-motion: no-preference){
  .reveal{ opacity:0; transform:translateY(10px); transition:opacity .5s ease, transform .5s ease }
  .reveal.is-visible{ opacity:1; transform:translateY(0) }
}

/* ---------- CONTACT SECTION ---------- */
.contact-section .section-head{ max-width:720px }
.contact-wrapper{
  display:grid;
  grid-template-columns:minmax(280px,0.9fr) minmax(340px,1fr);
  gap:clamp(24px,4vw,48px);
  align-items:start;
}
.contact-pane{
  background:rgba(14,21,34,.82);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  border:1px solid var(--border);
  border-radius:16px;
  padding:clamp(22px,3vw,32px);
  box-shadow:0 6px 22px rgba(0,0,0,.3);
  display:flex;
  flex-direction:column;
  gap:clamp(16px,2vw,28px);
}
.contact-pane h3{ margin:0; font-size:clamp(20px,1.6vw,24px) }
.contact-pane p{ margin:0; color:var(--muted) }
.contact-details{
  margin:0;
  display:grid;
  gap:14px;
}
.contact-details div{ display:grid; gap:4px }
.contact-details dt{
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(234,242,255,.62);
}
.contact-details dd{
  margin:0;
  font-weight:700;
  color:var(--text);
}
.contact-details a{ color:var(--text) }
.contact-details a:hover{ color:var(--brand-2) }
.contact-social{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.contact-social-label{
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(234,242,255,.62);
}
.contact-social ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.contact-social li{ margin:0 }
.contact-social a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  font-weight:700;
  font-size:var(--fs-sm);
  color:var(--text);
  transition:transform .18s ease, background .18s ease, border-color .18s ease;
}
.contact-social a:hover{
  transform:translateY(-1px);
  border-color:rgba(120,170,255,.42);
  background:rgba(120,170,255,.12);
}

/* ---------- CONTACT FORM ---------- */
.contact-form{
  display:flex;
  flex-direction:column;
  gap:18px;
  background:rgba(14,21,34,.82);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  border:1px solid var(--border);
  border-radius:16px;
  padding:clamp(24px,3vw,32px);
  box-shadow:0 6px 22px rgba(0,0,0,.3);
}
.contact-form .form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.contact-form-title{
  margin:0;
  font-size:clamp(20px,1.6vw,24px);
  line-height:var(--lh-head);
}
.contact-form-note{
  margin:0;
  color:var(--muted);
  font-size:var(--fs-sm);
}
.contact-form label{ display:flex; flex-direction:column; gap:6px; font-weight:700; font-size:var(--fs-sm) }
.contact-form label span{ color:var(--muted); font-weight:700 }
.contact-form input,
.contact-form textarea{
  background:#0e1522; color:var(--text);
  border:1px solid var(--border);
  border-radius:10px; padding:12px 12px; font-size:16px;
  transition:border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.contact-form input:focus,
.contact-form textarea:focus{
  outline:none; border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(80,150,255,.16);
  background:#0f1726;
}
.contact-form .full{ grid-column:1 / -1 }
.contact-form .btn{
  margin-top:6px;
  align-self:flex-start;
}

@media (max-width:1020px){
  .contact-wrapper{ grid-template-columns:1fr; gap:30px }
}
@media (max-width:640px){
  .contact-form .form-grid{ grid-template-columns:1fr }
}

/* ---------- FOOTER ---------- */
.footer{
  background:rgba(0,0,0,.28);
  border-top:1px solid var(--border);
  margin-top:60px;
}
.footer .footer-grid{
  display:grid; gap:20px;
  grid-template-columns:1.2fr 1fr 1fr;
  padding:26px 0;
}
.footer .footer-nav{ display:grid; gap:8px; align-content:start }
.footer .footer-nav a{ color:var(--muted); text-decoration:none; font-size:var(--fs-sm) }
.footer .footer-nav a:hover{ color:var(--brand) }
.footer .legal{
  border-top:1px dashed rgba(255,255,255,.1);
  color:var(--muted); text-align:center; padding:12px 0 24px; font-size:var(--fs-sm)
}

/* ---------- Animations ---------- */
@keyframes float{ 0%,100%{ transform:translate(0,0) } 50%{ transform:translate(10px,-14px) } }
@keyframes pulse{ 0%,100%{ opacity:1 } 50%{ opacity:.65 } }

/* ---------- Rich text defaults (optional utility) ---------- */
.prose{
  font-size:var(--fs-base);
  line-height:var(--lh-base);
}
.prose h1{ font-size:var(--fs-h1); line-height:var(--lh-head); margin:.2em 0 .3em }
.prose h2{ font-size:var(--fs-h2); line-height:var(--lh-head); margin:1em 0 .4em }
.prose h3{ font-size:clamp(20px,1.6vw,24px); line-height:1.3; margin:1em 0 .4em }
.prose p{ margin:.75em 0; color:var(--text) }
.prose p + p{ margin-top:.9em }
.prose ul, .prose ol{ margin:.75em 0 .75em 1.1em }
.prose li{ margin:.4em 0; color:var(--muted) }

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .hero-grid{ grid-template-columns:1fr minmax(540px,1.2fr) }
  .hero-right{ position:static; max-height:none; overflow:visible }
  .product-grid{ grid-template-columns:repeat(2,1fr) }
}
@media (max-width:920px){
  .section-grid{ grid-template-columns:repeat(2,1fr) }
}
@media (max-width:820px){
  .site-header .main-nav{ gap:12px }
  .hero-grid{ grid-template-columns:1fr }
  .hero-left,.hero-right{ position:static }
  .drone-stage{ height:clamp(460px,58vh,680px) }
  .status-rail{ position:static; top:auto }
}
@media (max-width:560px){
  .section-grid{ grid-template-columns:1fr }
  .product-grid{ grid-template-columns:1fr }
  .hero-title{ font-size:clamp(28px,8vw,36px) }
  .ai-bubble{ width:34px; height:34px }
}
@media (min-width:1600px){
  .container{ max-width:1680px }
  .drone-stage{ height:clamp(760px,78vh,1120px) }
}