/*
Theme Name: HertzZen
Theme URI: https://hertzzen.com
Author: Langazo Apps
Author URI: mailto:langazoapps@gmail.com
Description: Dark, high-converting landing theme for the HertzZen procedural soundscape app — styled after the app itself: deep night navy, electric cyan and amber, monospace accents. Ships with real app screenshots, the app's privacy policy and a contact page, all auto-created on activation.
Version: 1.1.1
Requires at least: 5.9
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: hertzzen
*/

:root{
  --bg:#050b18;
  --bg-2:#070f22;
  --card:#0c1628;
  --card-2:#101c33;
  --line:#1b2a45;
  --line-glow:#234066;
  --cyan:#4dd0e1;
  --cyan-2:#38bdf8;
  --amber:#ffb300;
  --violet:#b39dfa;
  --pink:#f36c8d;
  --ink:#eaf2ff;
  --muted:#8fa3c0;
  --dim:#5c7195;
  --grad:linear-gradient(100deg,var(--cyan) 0%,var(--cyan-2) 45%,var(--violet) 100%);
  --radius:20px;
  --wrap:1140px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  --mono:'JetBrains Mono','Cascadia Code',Consolas,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);
  background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%;display:block}
h1,h2,h3{line-height:1.12;margin:0 0 .5em;color:#fff;letter-spacing:-.02em}
h1{font-size:clamp(2.3rem,5.2vw,3.9rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800}
h3{font-size:1.12rem;font-weight:700}
p{margin:0 0 1rem}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.center{text-align:center}
.lead{font-size:1.1rem;color:var(--muted);max-width:660px;margin:0 auto 2rem}

/* Mono eyebrow — echoes the app's DSP STATE labels */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);
  font-size:.74rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--amber);margin-bottom:16px}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.eyebrow.cyan{color:var(--cyan)}
.eyebrow.cyan::before{background:var(--amber);box-shadow:0 0 10px var(--amber)}

/* Gradient headline accent */
.glow-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;
  padding:14px 28px;border-radius:14px;transition:.2s;cursor:pointer;border:0;font-size:1rem}
.btn-primary{background:transparent;color:var(--cyan);
  border:1.5px solid var(--cyan);box-shadow:0 0 22px -6px rgba(77,208,225,.55),inset 0 0 18px -10px rgba(77,208,225,.6);
  font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;font-size:.9rem}
.btn-primary:hover{background:rgba(77,208,225,.1);box-shadow:0 0 32px -4px rgba(77,208,225,.75)}
.btn-amber{background:transparent;color:var(--amber);border:1.5px solid var(--amber);
  box-shadow:0 0 22px -6px rgba(255,179,0,.5);font-family:var(--mono);letter-spacing:.08em;
  text-transform:uppercase;font-size:.9rem}
.btn-amber:hover{background:rgba(255,179,0,.1)}
.badge-link{display:inline-block;transition:transform .2s ease,filter .2s ease;border-radius:12px}
.badge-link img{height:64px;width:auto}
.badge-link:hover{transform:translateY(-2px);filter:drop-shadow(0 0 14px rgba(77,208,225,.4))}

/* Header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(5,11,24,.8);border-bottom:1px solid transparent;transition:.3s}
.site-header.scrolled{border-color:var(--line);background:rgba(5,11,24,.92)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.2rem;color:#fff}
.brand img{width:42px;height:42px;border-radius:11px;
  box-shadow:0 0 16px -2px rgba(77,208,225,.5)}
.brand .b-hertz{color:var(--amber)}
.brand .b-zen{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none;margin:0;padding:0}
.nav-links a{font-weight:600;color:var(--muted);font-size:.94rem;transition:color .2s}
.nav-links a:hover{color:var(--cyan)}
.nav-cta{padding:9px 20px;font-size:.8rem}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--amber);margin:5px 0}

/* Hero */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 520px at 78% 0%,rgba(77,208,225,.12),transparent 60%),
  radial-gradient(760px 480px at 10% 22%,rgba(179,157,250,.1),transparent 55%),
  radial-gradient(600px 400px at 50% 108%,rgba(255,179,0,.07),transparent 60%),
  var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding:84px 0 100px}
.hero-sub{font-size:1.16rem;color:var(--muted);max-width:520px}
.hero-copy .btns{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:26px}
.chips{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.chip{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;padding:7px 16px;
  border-radius:999px;border:1px solid var(--line-glow);color:var(--muted)}
.chip.on{color:var(--cyan);border-color:rgba(77,208,225,.5)}
.chip.on::before{content:"● ";color:var(--cyan)}
.chip.amber{color:var(--amber);border-color:rgba(255,179,0,.45)}
.trust{display:flex;gap:34px;margin-top:36px;flex-wrap:wrap}
.trust div{font-size:.85rem;color:var(--dim);font-family:var(--mono)}
.trust b{display:block;font-size:1.7rem;color:#fff;font-weight:800;font-family:var(--font)}
.trust b span{color:var(--cyan)}

/* Phone frames */
.phone{position:relative;justify-self:center}
.phone-frame{width:300px;border-radius:40px;padding:10px;
  background:linear-gradient(165deg,#17263f,#0a1322);
  border:1px solid var(--line-glow);
  box-shadow:0 30px 70px -24px rgba(0,0,0,.85),0 0 50px -18px rgba(77,208,225,.35)}
.phone-frame img{border-radius:31px;width:100%;aspect-ratio:1080/2140;object-fit:cover;object-position:top}
.phone::after{content:"";position:absolute;inset:auto 10% -34px 10%;height:60px;
  background:radial-gradient(closest-side,rgba(77,208,225,.28),transparent);filter:blur(8px)}

/* Waveform divider */
.wave-divider{height:70px;overflow:hidden;position:relative;opacity:.75}
.wave-divider svg{position:absolute;inset:0;width:100%;height:100%}

/* Feature cards — app card language */
.grid{display:grid;gap:20px}
.features .grid{grid-template-columns:repeat(4,1fr)}
.feature{background:linear-gradient(170deg,var(--card-2),var(--card));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .22s,border-color .22s,box-shadow .22s;position:relative}
.feature:hover{transform:translateY(-5px);border-color:var(--line-glow);
  box-shadow:0 18px 40px -20px rgba(0,0,0,.8),0 0 30px -14px rgba(77,208,225,.4)}
.feature .tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;color:var(--dim);
  position:absolute;top:20px;right:20px}
.feature .ico{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;
  background:rgba(77,208,225,.09);border:1px solid rgba(77,208,225,.3);margin-bottom:18px}
.feature .ico svg{width:23px;height:23px;stroke:var(--cyan)}
.feature:nth-child(4n+2) .ico{background:rgba(255,179,0,.08);border-color:rgba(255,179,0,.3)}
.feature:nth-child(4n+2) .ico svg{stroke:var(--amber)}
.feature:nth-child(4n+3) .ico{background:rgba(179,157,250,.09);border-color:rgba(179,157,250,.3)}
.feature:nth-child(4n+3) .ico svg{stroke:var(--violet)}
.feature h3{margin-bottom:6px;font-size:1.05rem}
.feature p{font-size:.92rem;color:var(--muted);margin:0}

/* Use cases */
.usecases{background:
  radial-gradient(700px 340px at 50% 0%,rgba(77,208,225,.08),transparent 60%),var(--bg-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.uc-grid{grid-template-columns:repeat(4,1fr)}
.uc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 24px;text-align:center;transition:.22s}
.uc:hover{border-color:var(--line-glow);transform:translateY(-4px)}
.uc .emoji{font-size:2rem;margin-bottom:12px;filter:drop-shadow(0 0 12px rgba(77,208,225,.5))}
.uc h3{font-size:1.02rem}
.uc p{color:var(--muted);font-size:.9rem;margin:0}

/* Gallery */
.gallery-scroll{display:flex;gap:26px;overflow-x:auto;padding:10px 4px 28px;
  scroll-snap-type:x mandatory;justify-content:flex-start}
.gallery-scroll::-webkit-scrollbar{height:6px}
.gallery-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.shot{flex:0 0 auto;scroll-snap-align:center;text-align:center}
.shot .phone-frame{width:258px}
.shot figcaption{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;
  color:var(--dim);margin-top:16px;text-transform:uppercase}

/* CTA */
.cta{position:relative;border:1px solid var(--line-glow);border-radius:32px;text-align:center;
  padding:84px 24px;overflow:hidden;background:
  radial-gradient(600px 300px at 50% -20%,rgba(77,208,225,.14),transparent 65%),
  radial-gradient(500px 260px at 50% 120%,rgba(255,179,0,.08),transparent 60%),
  linear-gradient(170deg,var(--card-2),var(--card))}
.cta p{color:var(--muted);max-width:540px;margin:0 auto 30px}

/* Footer */
.site-footer{background:var(--bg-2);color:var(--muted);padding:60px 0 30px;
  border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px}
.foot-links h4{color:var(--amber);font-family:var(--mono);font-size:.76rem;
  letter-spacing:.18em;text-transform:uppercase;margin:0 0 16px}
.foot-links ul{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:10px}
.foot-links a{transition:color .2s}
.foot-links a:hover{color:var(--cyan)}
.foot-bottom{border-top:1px solid var(--line);margin-top:44px;padding-top:22px;
  font-size:.82rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:var(--dim);font-family:var(--mono)}

/* Inner pages */
.page-hero{background:
  radial-gradient(760px 340px at 82% -30%,rgba(77,208,225,.1),transparent 60%),var(--bg);
  padding:72px 0 44px;border-bottom:1px solid var(--line)}
.page-hero p{color:var(--muted)}
.page-body{max-width:820px;margin:0 auto;padding:44px 24px 60px}
.page-body h2{font-size:1.32rem;margin-top:2.2em;color:var(--cyan)}
.page-body h3{margin-top:1.6em}
.page-body ul{padding-left:20px;color:var(--muted)}
.page-body p{color:var(--muted)}
.page-body strong{color:var(--ink)}
.page-body a{color:var(--cyan);font-weight:600}
.privacy-note{border:1px solid var(--line);border-radius:14px;padding:18px 22px;
  background:var(--card);color:var(--muted);font-size:.95rem}

/* Contact */
.contact-card{background:linear-gradient(170deg,var(--card-2),var(--card));
  border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.contact-field{display:block;margin-bottom:18px}
.contact-field span{display:block;font-family:var(--mono);font-size:.72rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:8px}
.contact-field input,.contact-field textarea{width:100%;padding:13px 15px;
  border:1px solid var(--line-glow);border-radius:12px;font-family:inherit;font-size:1rem;
  background:var(--bg);color:var(--ink);transition:border-color .2s,box-shadow .2s}
.contact-field input:focus,.contact-field textarea:focus{outline:none;border-color:var(--cyan);
  box-shadow:0 0 16px -6px rgba(77,208,225,.5)}
.contact-field textarea{min-height:140px;resize:vertical}
.form-ok{color:#4ade80;font-weight:600}
.form-err{color:var(--pink);font-weight:600}

/* Reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media(max-width:980px){
  .features .grid,.uc-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;text-align:center;padding-top:56px}
  .hero-copy .btns,.trust,.chips{justify-content:center}
  .hero-sub{margin-inline:auto}
  .foot-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .section{padding:68px 0}
  .features .grid,.uc-grid{grid-template-columns:1fr}
  .nav-links{position:fixed;inset:76px 0 auto 0;flex-direction:column;background:var(--bg-2);
    padding:26px;gap:20px;border-bottom:1px solid var(--line);transform:translateY(-160%);
    transition:transform .3s ease}
  .nav-links.open{transform:none}
  .nav-toggle{display:block}
  .badge-link img{height:56px}
}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}