/* Color Flashlight – ScreenFlash · colorflashlight.app */
:root{
  --bg:#0b0b12;--bg2:#101018;--card:#14141f;--line:#262636;
  --text:#f4f4f8;--muted:#a3a3b8;--dim:#71718a;
  --pink:#ff2d78;--orange:#ff9f1c;--teal:#2dd4bf;--blue:#4f7cff;--purple:#a855f7;
  --grad:linear-gradient(90deg,var(--pink),var(--orange),var(--teal),var(--blue),var(--purple));
  --radius:16px;--maxw:1100px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,11,18,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);font-size:17px}
.brand:hover{text-decoration:none}
.brand img{width:34px;height:34px;border-radius:8px}
.nav{margin-left:auto;display:flex;align-items:center;gap:22px}
.nav a{color:var(--muted);font-size:14.5px;font-weight:500}
.nav a:hover{color:var(--text);text-decoration:none}
.nav .btn-small{color:#0b0b12;background:var(--text);padding:8px 16px;border-radius:99px;font-weight:600}
.nav .btn-small:hover{opacity:.9}
@media(max-width:720px){.nav a:not(.btn-small){display:none}}

/* rainbow utilities */
.rainbow-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.rainbow-bar{height:3px;background:var(--grad);border:0}

/* hero */
.hero{position:relative;overflow:hidden;padding:84px 0 64px}
.hero::before{content:"";position:absolute;inset:-40% -20% auto;height:130%;background:
 radial-gradient(38% 42% at 18% 30%,rgba(255,45,120,.22),transparent 70%),
 radial-gradient(34% 40% at 55% 12%,rgba(79,124,255,.20),transparent 70%),
 radial-gradient(30% 36% at 85% 38%,rgba(45,212,191,.16),transparent 70%);
 pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;text-align:center}.hero-art{margin:0 auto}.hero .badges,.hero .cta-row{justify-content:center}}
.hero h1{font-size:clamp(34px,5vw,54px);line-height:1.12;letter-spacing:-.02em;font-weight:800}
.hero .sub{margin-top:18px;font-size:19px;color:var(--muted);max-width:56ch}
.cta-row{display:flex;align-items:center;gap:18px;margin-top:30px;flex-wrap:wrap}
.appstore-badge{display:inline-flex;align-items:center;gap:12px;background:#000;border:1px solid #3a3a4a;border-radius:14px;padding:10px 20px;transition:transform .15s ease,border-color .15s}
.appstore-badge:hover{transform:translateY(-2px);border-color:#6a6a7a;text-decoration:none}
.appstore-badge svg{width:28px;height:28px;fill:#fff;flex:none}
.appstore-badge .t{line-height:1.15;text-align:left}
.appstore-badge .t small{display:block;font-size:11px;color:#c8c8d0}
.appstore-badge .t b{font-size:19px;color:#fff;font-weight:600}
.badges{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.chip{font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:6px 13px;background:rgba(20,20,31,.6)}
.hero-art{position:relative;width:min(280px,68vw)}
.phone{position:relative;aspect-ratio:9/19.2;border-radius:48px;background:#15151f;border:3px solid #32324a;padding:11px;
 box-shadow:0 34px 110px rgba(255,45,120,.50),0 10px 34px rgba(0,0,0,.65),inset 0 1px 0 rgba(255,255,255,.06);
 animation:hueCycle 14s linear infinite}
.phone-screen{position:absolute;inset:11px;border-radius:38px;overflow:hidden;
 background:radial-gradient(120% 90% at 50% 20%,#ff5db1 0%,#ff2d78 55%,#c81b60 100%)}
.phone-screen::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.16) 0%,transparent 34%)}
.phone-notch{position:absolute;top:22px;left:50%;transform:translateX(-50%);width:34%;height:22px;background:#0b0b12;border-radius:99px;z-index:2}
.phone-home{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);width:36%;height:5px;background:rgba(255,255,255,.85);border-radius:99px;z-index:2}
.phone-power{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:74px;height:74px;border-radius:50%;
 border:4px solid rgba(255,255,255,.9);box-shadow:0 0 34px rgba(255,255,255,.55),inset 0 0 22px rgba(255,255,255,.3)}
.phone-power::before{content:"";position:absolute;left:50%;top:-7px;transform:translateX(-50%);width:4px;height:26px;background:rgba(255,255,255,.95);border-radius:99px;box-shadow:0 0 14px rgba(255,255,255,.8)}
@keyframes hueCycle{from{filter:hue-rotate(0deg)}to{filter:hue-rotate(360deg)}}
@media (prefers-reduced-motion: reduce){.phone{animation:none}}
.rating-line{margin-top:16px;font-size:14px;color:var(--muted)}
.rating-line b{color:var(--text)}

/* sections */
section{padding:72px 0}
section.alt{background:var(--bg2)}
.kicker{font-size:13px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(26px,3.4vw,38px);letter-spacing:-.01em;margin-top:10px;font-weight:800}
.lead{color:var(--muted);margin-top:14px;max-width:70ch;font-size:17px}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* screenshots */
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
@media(max-width:860px){.shots{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.shots{grid-template-columns:1fr}}
.shot{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:14px;transition:transform .18s ease,border-color .18s}
.shot:hover{transform:translateY(-6px);border-color:#3a3a52}
.shot img{border-radius:12px;width:100%;height:auto}
.shot figcaption{font-size:13.5px;color:var(--muted);padding:12px 4px 2px;text-align:center}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px;counter-reset:step}
@media(max-width:860px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.steps{grid-template-columns:1fr}}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative}
.step .num{width:38px;height:38px;border-radius:12px;background:var(--grad);color:#0b0b12;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px}
.step h3{font-size:17.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px}

/* feature list */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
@media(max-width:860px){.features{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.features{grid-template-columns:1fr}}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.feature .ico{font-size:26px;margin-bottom:12px}
.feature h3{font-size:16.5px;margin-bottom:6px}
.feature p{color:var(--muted);font-size:14.5px}

/* guides */
.guides{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:44px}
@media(max-width:720px){.guides{grid-template-columns:1fr}}
.guide-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;display:block;color:var(--text);transition:transform .18s,border-color .18s}
.guide-card:hover{transform:translateY(-4px);border-color:#3a3a52;text-decoration:none}
.guide-card .tag{font-size:12px;color:var(--dim);text-transform:uppercase;letter-spacing:.1em;font-weight:700}
.guide-card h3{font-size:18px;margin:8px 0 8px}
.guide-card p{color:var(--muted);font-size:14.5px}
.guide-card .more{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* faq */
.faq{max-width:820px;margin:40px auto 0}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:16px;list-style:none;position:relative;padding-right:48px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--dim);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .a{padding:0 22px 20px;color:var(--muted);font-size:15px}
.faq .a a{font-weight:600}

/* big cta */
.big-cta{position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);background:
 radial-gradient(60% 120% at 20% 0%,rgba(255,45,120,.25),transparent 60%),
 radial-gradient(50% 120% at 80% 20%,rgba(79,124,255,.25),transparent 60%),var(--card);
 padding:64px 40px;text-align:center}
.big-cta h2{margin-top:0}
.big-cta .lead{margin-left:auto;margin-right:auto}
.big-cta .cta-row{justify-content:center}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:48px 0 40px;background:var(--bg2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
@media(max-width:720px){.foot-grid{grid-template-columns:1fr}}
.site-footer h4{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--dim);margin-bottom:14px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:9px}
.site-footer a{color:var(--muted);font-size:14.5px}
.site-footer a:hover{color:var(--text)}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:700;margin-bottom:12px}
.foot-brand img{width:30px;height:30px;border-radius:7px}
.foot-note{color:var(--dim);font-size:13px;margin-top:10px;max-width:44ch}
.copyright{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);color:var(--dim);font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ------- guide article pages ------- */
.article{max-width:780px;margin:0 auto;padding:56px 24px 24px}
.article .crumbs{font-size:13.5px;color:var(--dim);margin-bottom:18px}
.article .crumbs a{color:var(--dim)}
.article h1{font-size:clamp(30px,4.4vw,42px);line-height:1.15;letter-spacing:-.02em;font-weight:800}
.article .byline{color:var(--dim);font-size:14px;margin-top:14px}
.article .intro{font-size:18.5px;color:var(--muted);margin-top:20px}
.article h2{font-size:26px;margin:44px 0 14px}
.article h3{font-size:19px;margin:30px 0 10px}
.article p{margin:14px 0;color:#d6d6e2}
.article ul,.article ol{margin:14px 0 14px 24px;color:#d6d6e2}
.article li{margin-bottom:9px}
.article .tip{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:12px;padding:16px 20px;margin:22px 0;color:var(--muted);font-size:15px}
.article .img-row{display:flex;gap:16px;margin:26px 0;justify-content:center}
.article .img-row img{width:min(240px,44%);border-radius:16px;border:1px solid var(--line)}
.inline-cta{display:flex;align-items:center;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;margin:36px 0}
.inline-cta img{width:64px;height:64px;border-radius:14px;flex:none}
.inline-cta .t b{display:block;font-size:16.5px}
.inline-cta .t span{color:var(--muted);font-size:14px}
.inline-cta .appstore-badge{margin-left:auto;flex:none}
@media(max-width:620px){.inline-cta{flex-direction:column;text-align:center}.inline-cta .appstore-badge{margin-left:0}}
.related{margin:52px 0 0}
.related h2{font-size:22px}
.related ul{list-style:none;margin:16px 0 0}
.related li{margin-bottom:10px}