/* ============================================================
   WeatherQB — landing page
   ============================================================ */

:root{
  --bg:        #ffffff;
  --bg-2:      #f5f6f9;
  --panel:     rgba(15,23,42,.035);
  --panel-2:   rgba(15,23,42,.06);
  --line:      rgba(31,79,130,.14);
  --line-2:    rgba(31,79,130,.26);

  --ink:       #0b1220;
  --ink-2:     #48546c;
  --ink-3:     #6b7690;

  --pig:       #b8571f;
  --pig-hot:   #e2812f;
  --sky:       #4fd3ff;
  --sky-deep:  #0f6f95;

  --shadow:    rgba(15,23,42,.16);
  --shadow-lg: rgba(15,23,42,.30);

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;

  --wrap: 1180px;
  --ease: cubic-bezier(.22,.61,.36,1);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  --font-body:    "Inter", ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img,svg{ max-width:100%; }
a{ color:inherit; text-decoration:none; }

.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:24px; }
.wrap.narrow{ max-width:820px; }

.skip{
  position:absolute; left:-9999px; top:12px; z-index:100;
  background:var(--sky-deep); color:#f5fdff; padding:10px 16px; border-radius:var(--r-sm); font-weight:600;
}
.skip:focus{ left:16px; }

:focus-visible{ outline:2px solid var(--sky-deep); outline-offset:3px; border-radius:6px; }

/* ── ambient background ───────────────────────────────────── */

.aurora{
  position:fixed; inset:-20% -10% auto -10%; height:120vh; z-index:0; pointer-events:none;
  background:
    radial-gradient(52vw 42vw at 74% 12%, rgba(224,138,74,.14), transparent 62%),
    radial-gradient(46vw 40vw at 16% 30%, rgba(58,150,220,.12), transparent 66%),
    radial-gradient(70vw 50vw at 50% 96%, rgba(210,222,240,.55), transparent 70%);
  filter:blur(6px);
}

.grain{
  position:fixed; inset:0; z-index:1; pointer-events:none; opacity:.32;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='.5'/></svg>");
  mix-blend-mode:overlay;
}

main,.nav,.footer{ position:relative; z-index:2; }

/* ── nav ──────────────────────────────────────────────────── */

.nav{
  position:sticky; top:0; z-index:40;
  backdrop-filter:blur(14px) saturate(140%);
  background:linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.45));
  border-bottom:1px solid transparent;
  transition:border-color .35s var(--ease), background .35s var(--ease);
}
.nav.stuck{ border-bottom-color:var(--line); background:rgba(255,255,255,.92); }

.nav-inner{ display:flex; align-items:center; gap:28px; height:74px; }

.brand{ display:flex; align-items:center; gap:11px; font-family:var(--font-display); }
.brand-mark{ width:44px; height:30px; overflow:visible; flex:none; }
.brand-word{ font-size:19px; font-weight:700; letter-spacing:-.02em; }
.brand-qb{ color:var(--pig); }

.nav-links{ margin-left:auto; display:flex; gap:24px; font-size:14.5px; font-weight:600; color:var(--ink-2); }
.nav-links a{ position:relative; transition:color .25s var(--ease); }
.nav-links a::after{
  content:""; position:absolute; left:0; right:100%; bottom:-6px; height:1.5px;
  background:var(--pig); transition:right .3s var(--ease);
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ right:0; }

/* ── buttons ──────────────────────────────────────────────── */

.btn{
  --btn-bg:var(--panel-2);
  display:inline-flex; align-items:center; gap:9px;
  padding:13px 22px; border-radius:100px;
  font-family:var(--font-display); font-weight:600; font-size:15.5px; letter-spacing:.005em;
  border:1px solid var(--line-2); background:var(--btn-bg); color:var(--ink);
  cursor:pointer; white-space:nowrap;
  transition:transform .25s var(--ease), box-shadow .3s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.btn svg{ width:18px; height:18px; transition:transform .3s var(--ease); }
.btn:hover{ transform:translateY(-2px); }
.btn:hover svg{ transform:translateX(3px); }
.btn:active{ transform:translateY(0); }

.btn-sm{ padding:9px 17px; font-size:14px; }
.btn-lg{ padding:17px 32px; font-size:17.5px; }

.btn-primary{
  border-color:transparent; color:#1c0d03;
  background:linear-gradient(135deg, var(--pig-hot), var(--pig) 58%, #a4501e);
  box-shadow:0 10px 30px -14px rgba(199,110,45,.55), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{ box-shadow:0 18px 40px -14px rgba(199,110,45,.6), inset 0 1px 0 rgba(255,255,255,.45); }

.btn-ghost{ background:transparent; color:var(--ink-2); }
.btn-ghost:hover{ color:var(--ink); border-color:var(--sky-deep); background:rgba(15,111,149,.06); }

/* ── hero ─────────────────────────────────────────────────── */

.hero{ padding-top:46px; }

.hero-grid{
  display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);
  gap:36px; align-items:center; min-height:min(78vh, 760px);
}

.eyebrow{
  display:inline-flex; align-items:center; gap:10px; margin:0 0 22px;
  padding:7px 15px 7px 12px; border:1px solid var(--line); border-radius:100px;
  background:var(--panel); color:var(--ink-2);
  font-size:12.5px; font-weight:600; letter-spacing:.13em; text-transform:uppercase;
}
.pulse{
  width:8px; height:8px; border-radius:50%; background:var(--pig-hot); flex:none;
  box-shadow:0 0 0 0 rgba(226,129,47,.5); animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(226,129,47,.45); }
  70%{ box-shadow:0 0 0 11px rgba(226,129,47,0); }
  100%{ box-shadow:0 0 0 0 rgba(226,129,47,0); }
}

h1{
  font-family:var(--font-display);
  font-size:clamp(42px, 6.1vw, 78px);
  line-height:1.03; letter-spacing:-.035em; font-weight:700;
  margin:0 0 22px;
  text-wrap:balance;
}
h1 em{
  font-style:normal;
  background:linear-gradient(100deg, #c96a1c 6%, var(--pig) 45%, var(--sky-deep) 98%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

.lede{
  margin:0 0 32px; max-width:34em;
  font-size:clamp(16.5px, 1.35vw, 19px); color:var(--ink-2); line-height:1.72;
}

.hero-cta{ display:flex; flex-wrap:wrap; gap:14px; margin-bottom:34px; }

.hero-chips{
  display:flex; flex-wrap:wrap; gap:10px; list-style:none; margin:0; padding:0;
}
.hero-chips li{
  padding:7px 14px; border:1px solid var(--line); border-radius:100px;
  background:var(--panel); color:var(--ink-3);
  font-size:13px; font-weight:500; letter-spacing:.02em;
}

/* ── the planet stage ─────────────────────────────────────── */

.stage{ position:relative; }
.stage-inner{
  position:relative;
  transition:transform .5s var(--ease);
  will-change:transform;
}

.planet{
  width:100%; height:auto; overflow:visible;
  filter:drop-shadow(0 40px 70px var(--shadow-lg));
  animation:float 13s ease-in-out infinite;
}
@keyframes float{
  0%,100%{ transform:translateY(-10px); }
  50%    { transform:translateY(12px); }
}

.atmo{ animation:breathe 9s ease-in-out infinite; transform-origin:center; }
@keyframes breathe{
  0%,100%{ opacity:.85; transform:scale(1); }
  50%    { opacity:1;   transform:scale(1.035); }
}

.band-scroll{ animation:drift 52s linear infinite; }
@keyframes drift{ to{ transform:translateX(-900px); } }

.cyclone{ opacity:.62; }
.cyclone .spin{
  fill:none; stroke:#f4fbff; stroke-width:11; stroke-linecap:round; opacity:.75;
  animation:swirl 21s linear infinite;
}
.cyclone .spin.rev{ animation-duration:15s; animation-direction:reverse; }
@keyframes swirl{ to{ transform:rotate(360deg); } }

/* companion spheres tumble as they orbit */
.tumble{
  transform-box:fill-box; transform-origin:center;
  animation:tumble 46s linear infinite;
}
.tumble.fast{ animation-duration:19s; animation-direction:reverse; }
.tumble.slow{ animation-duration:70s; }
@keyframes tumble{ to{ transform:rotate(360deg); } }

.limb-glow{ animation:limb 7s ease-in-out infinite; }
@keyframes limb{ 0%,100%{ opacity:.14; } 50%{ opacity:.3; } }

.bolt{ opacity:0; }

.stripes{ opacity:.9; }
.grain-tex{ mix-blend-mode:overlay; }

/* floating HUD cards — dark glass chips read as an instrument overlay
   on the imagery, independent of the page theme */
.hud{
  position:absolute; z-index:3;
  display:grid; gap:2px; padding:14px 18px;
  border:1px solid rgba(159,196,255,.22); border-radius:var(--r);
  background:linear-gradient(160deg, rgba(16,24,42,.94), rgba(8,13,26,.88));
  backdrop-filter:blur(10px);
  box-shadow:0 20px 40px -20px var(--shadow-lg);
  animation:float 11s ease-in-out infinite;
}
.hud-1{ left:-2%;  top:16%; animation-delay:-3s; }
.hud-2{ right:-1%; bottom:14%; animation-delay:-7s; }

.hud-k{ font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:#93a3c2; }
.hud-v{ font-family:var(--font-display); font-size:26px; font-weight:700; letter-spacing:-.02em; line-height:1.15; color:#eef3fb; }
.hud-v i{ font-style:normal; font-size:14px; font-weight:500; color:#b7c2da; }
.hud-s{ font-size:12.5px; color:#7fe6ff; opacity:.9; }

/* ── ticker ───────────────────────────────────────────────── */

.ticker{
  margin-top:56px; padding:13px 0;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:linear-gradient(90deg, rgba(15,111,149,.05), rgba(224,138,74,.06));
  overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
          mask-image:linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
}
.ticker-track{
  display:flex; gap:34px; width:max-content;
  font-family:var(--font-display); font-size:12.5px; font-weight:600;
  letter-spacing:.22em; color:var(--ink-3);
  animation:ticker 42s linear infinite;
}
.ticker-track span:nth-child(even){ color:var(--pig); letter-spacing:0; }
@keyframes ticker{ to{ transform:translateX(-50%); } }

/* ── sections ─────────────────────────────────────────────── */

.section{ padding:112px 0; }
.section-alt{
  background:linear-gradient(180deg, transparent, var(--bg-2) 12%, var(--bg-2) 88%, transparent);
  border-block:1px solid var(--line);
}

.kicker{
  margin:0 0 14px; font-family:var(--font-display);
  font-size:12.5px; font-weight:600; letter-spacing:.2em; text-transform:uppercase;
  color:var(--pig);
}

h2{
  font-family:var(--font-display); font-weight:700;
  font-size:clamp(30px, 3.9vw, 46px); line-height:1.1; letter-spacing:-.03em;
  margin:0 0 16px;
  text-wrap:balance;
}

.section-lede{ margin:0 0 52px; max-width:46em; color:var(--ink-2); font-size:17.5px; }

.feature-head{
  display:flex; align-items:center; justify-content:space-between;
  gap:32px; flex-wrap:wrap-reverse;
}
.feature-head-copy{ flex:1 1 420px; }
.feature-head-copy .section-lede{ margin-bottom:0; }
.feature-head-logo{
  flex:none; width:clamp(200px, 24vw, 320px); height:auto; overflow:visible;
  margin-bottom:8px;
}

/* cards */
.cards{
  display:grid; gap:20px; margin-top:44px;
  grid-template-columns:repeat(auto-fit, minmax(248px, 1fr));
}
.card{
  position:relative; overflow:hidden;
  padding:30px 26px 32px; border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(165deg, var(--panel-2), var(--panel));
  transition:transform .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.card::before{
  content:""; position:absolute; inset:-1px; border-radius:inherit; pointer-events:none;
  background:radial-gradient(340px 200px at var(--mx,50%) var(--my,0%), rgba(224,138,74,.14), transparent 70%);
  opacity:0; transition:opacity .4s var(--ease);
}
.card:hover{
  transform:translateY(-6px);
  border-color:var(--line-2);
  box-shadow:0 26px 50px -30px var(--shadow-lg);
}
.card:hover::before{ opacity:1; }

.card-ico{
  width:46px; height:46px; display:grid; place-items:center; margin-bottom:20px;
  border-radius:13px; border:1px solid var(--line-2);
  background:linear-gradient(150deg, rgba(224,138,74,.18), rgba(15,111,149,.1));
  color:var(--pig);
}
.card-ico svg{ width:23px; height:23px; }

.card h3{
  font-family:var(--font-display); font-size:20px; font-weight:600;
  letter-spacing:-.015em; margin:0 0 9px;
}
.card p{ margin:0; color:var(--ink-2); font-size:15.5px; line-height:1.66; }

/* steps */
.steps{
  list-style:none; margin:44px 0 0; padding:0;
  display:grid; gap:22px; grid-template-columns:repeat(auto-fit, minmax(270px,1fr));
  counter-reset:step;
}
.step{
  position:relative; padding:30px 26px 30px 26px;
  border-radius:var(--r-lg); border:1px solid var(--line);
  background:var(--panel);
}
.step-n{
  display:block; margin-bottom:14px;
  font-family:var(--font-display); font-size:34px; font-weight:700; letter-spacing:-.04em;
  background:linear-gradient(120deg, var(--pig), var(--sky-deep));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.step h3{ font-family:var(--font-display); font-size:19.5px; font-weight:600; margin:0 0 8px; letter-spacing:-.015em; }
.step p{ margin:0; color:var(--ink-2); font-size:15.5px; }

/* faq */
.faq{ margin-top:38px; border-top:1px solid var(--line); }
.faq details{ border-bottom:1px solid var(--line); }
.faq summary{
  list-style:none; cursor:pointer; padding:22px 44px 22px 0; position:relative;
  font-family:var(--font-display); font-size:18px; font-weight:600; letter-spacing:-.01em;
  transition:color .25s var(--ease);
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{
  content:""; position:absolute; right:8px; top:50%; width:11px; height:11px;
  border-right:2px solid var(--pig); border-bottom:2px solid var(--pig);
  transform:translateY(-70%) rotate(45deg); transition:transform .3s var(--ease);
}
.faq details[open] summary::after{ transform:translateY(-25%) rotate(-135deg); }
.faq summary:hover{ color:var(--pig); }
.faq details p{ margin:-6px 0 24px; color:var(--ink-2); max-width:60ch; }

/* ── cta ──────────────────────────────────────────────────── */

.cta{ padding:112px 0 124px; }
.cta-inner{
  position:relative; overflow:hidden; text-align:center;
  padding:74px 30px 68px; border-radius:34px;
  border:1px solid var(--line-2);
  background:
    radial-gradient(80% 130% at 50% -20%, rgba(216,105,31,.14), transparent 62%),
    linear-gradient(180deg, #ffffff, var(--bg-2));
  box-shadow:0 40px 90px -50px var(--shadow-lg);
}
.cta-inner::after{
  content:""; position:absolute; left:50%; top:-46%; width:min(760px,120%); aspect-ratio:1;
  transform:translateX(-50%);
  background:radial-gradient(circle, rgba(15,111,149,.08), transparent 62%);
  pointer-events:none;
}
.cta-inner h2{ margin-bottom:10px; }
.cta-inner > p{ margin:0 auto 30px; color:var(--ink-2); max-width:44ch; }
.cta-fine{ margin:20px 0 0 !important; font-size:13px; color:var(--ink-3); }

/* ── footer ───────────────────────────────────────────────── */

.footer{ border-top:1px solid var(--line); padding:34px 0 44px; }
.footer-inner{ display:flex; flex-wrap:wrap; gap:12px; align-items:center; justify-content:space-between; }
.footer-brand{ margin:0; font-family:var(--font-display); font-weight:700; font-size:17px; letter-spacing:-.02em; }
.footer-note{ margin:0; color:var(--ink-3); font-size:13.5px; }

/* ── reveal ───────────────────────────────────────────────── */

.reveal{ opacity:0; transform:translateY(22px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.d1{ transition-delay:.08s; } .d2{ transition-delay:.16s; }
.d3{ transition-delay:.24s; } .d4{ transition-delay:.32s; }

/* ── responsive ───────────────────────────────────────────── */

@media (max-width:980px){
  .hero-grid{ grid-template-columns:1fr; gap:10px; text-align:center; padding-top:12px; }
  .hero-copy{ order:2; }
  .stage{ order:1; }
  .lede{ margin-inline:auto; }
  .hero-cta,.hero-chips{ justify-content:center; }
  .nav-links{ display:none; }
  .hud-1{ left:0; top:8%; }
  .hud-2{ right:0; bottom:6%; }
  .feature-head{ justify-content:center; text-align:center; }
  .feature-head-copy{ flex-basis:100%; }
  .feature-head-logo{ width:200px; margin:0 auto; }
}

@media (max-width:640px){
  body{ font-size:16px; }
  .section{ padding:78px 0; }
  .cta{ padding:78px 0 88px; }
  .cta-inner{ padding:52px 22px 48px; border-radius:26px; }
  .hud{ padding:11px 14px; }
  .hud-v{ font-size:21px; }
  .hud-s{ font-size:11.5px; }
  .ticker{ margin-top:38px; }
}

/* ── motion & print ───────────────────────────────────────── */

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important; animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{ opacity:1; transform:none; }
}

@media print{
  .aurora,.grain,.ticker{ display:none; }
  body{ background:#fff; color:#000; }
}