/* PWR-OS product page (pwrstudios.it/PWR-OS). Dark, warm and quiet: the same look as the app and its promo video. */
@font-face { font-family: "Inter"; src: url("/assets/inter.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #0d0c0b;
  --bg-2: #141311;
  --panel: #1b1a18;
  --panel-2: #22201d;
  --line: rgba(255, 236, 210, .09);
  --line-2: rgba(255, 236, 210, .16);
  --text: #eee7db;
  --muted: #a8a093;
  --faint: #6f695f;
  --gold: #dcbb88;
  --gold-2: #b98f58;
  --gold-soft: rgba(220, 187, 136, .14);
  --ok: #8fc79a;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: "Inter", "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --radius: 18px;
  --wrap: 1140px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 16px/1.6 var(--sans); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; letter-spacing: -.02em; line-height: 1.1; }
p { margin: 0; }
em, .serif { font-family: var(--serif); font-style: italic; color: var(--gold); letter-spacing: -.01em; }
::selection { background: rgba(220, 187, 136, .35); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

.os-skip { position: absolute; left: -999px; top: 8px; z-index: 100; padding: 10px 14px; background: var(--gold); color: #1a140c; border-radius: 10px; }
.os-skip:focus { left: 16px; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* Sky: soft glow plus a canvas of stars (drawn by pwr-os.js, still when reduced motion is asked). */
.os-sky { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 45% at 50% 18%, rgba(120, 88, 52, .22), transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 75%, rgba(90, 70, 45, .12), transparent 70%),
    var(--bg); }
.os-sky canvas { width: 100%; height: 100%; }

/* Navigation */
.os-nav { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s; }
.os-nav.scrolled { background: rgba(13, 12, 11, .82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-color: var(--line); }
.os-nav .wrap { display: flex; align-items: center; gap: 20px; height: 68px; }
.os-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: .28em; font-size: 14px; }
.os-brand img { width: 22px; height: auto; }
.os-links { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.os-links a { padding: 8px 12px; border-radius: 10px; text-decoration: none; color: var(--muted); font-size: 14.5px; transition: color .2s, background .2s; }
.os-links a:hover { color: var(--text); background: rgba(255, 255, 255, .04); }
.os-links .os-studio { color: var(--faint); }
.os-links .os-btn { margin-left: 6px; color: #1d160d; }
.os-links .os-btn:hover { color: #1d160d; }
.menu-toggle { display: none; width: 42px; height: 42px; margin-left: 4px; border: 1px solid var(--line-2); border-radius: 12px; background: transparent; cursor: pointer; position: relative; }
.menu-toggle span { position: absolute; left: 12px; right: 12px; height: 1.5px; background: var(--text); transition: transform .25s, top .25s; }
.menu-toggle span:first-child { top: 16px; }
.menu-toggle span:last-child { top: 24px; }
.menu-toggle[aria-expanded="true"] span:first-child { top: 20px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { top: 20px; transform: rotate(-45deg); }

/* Buttons */
.os-btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 12px 22px; border-radius: 999px; border: 0; cursor: pointer;
  background: linear-gradient(180deg, #e9cd9f, #c99f66); color: #1d160d; font: 600 15px/1 var(--sans); text-decoration: none;
  box-shadow: 0 0 0 1px rgba(255, 230, 190, .25) inset, 0 10px 30px -8px rgba(214, 170, 105, .5); transition: transform .2s, box-shadow .2s, filter .2s; }
.os-btn:hover { transform: translateY(-1px); filter: brightness(1.05); box-shadow: 0 0 0 1px rgba(255, 230, 190, .35) inset, 0 14px 36px -8px rgba(214, 170, 105, .65); }
.os-btn svg { width: 17px; height: 17px; flex: none; }
.os-btn.small { padding: 9px 16px; font-size: 14px; }
.os-btn.big { padding: 16px 28px; font-size: 16px; }
.os-ghost { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--text); text-decoration: none; font-weight: 500; font-size: 15px; transition: background .2s, border-color .2s; }
.os-ghost:hover { background: rgba(255, 255, 255, .04); border-color: rgba(255, 236, 210, .28); }

/* Hero */
.os-hero { padding: 72px 0 40px; text-align: center; }
.os-kicker { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px; padding: 6px 14px 6px 8px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--muted); font-size: 13.5px; background: rgba(27, 26, 24, .6); }
.os-kicker b { padding: 3px 9px; border-radius: 999px; background: var(--gold-soft); color: var(--gold); font-weight: 600; font-size: 12px; letter-spacing: .04em; }
.os-hero h1 { font-size: clamp(42px, 7.2vw, 84px); font-weight: 300; letter-spacing: -.035em; }
.os-hero h1 em { font-weight: 400; }
.os-lead { max-width: 660px; margin: 24px auto 0; color: var(--muted); font-size: clamp(17px, 2vw, 19.5px); line-height: 1.55; }
.os-lead strong { color: var(--text); font-weight: 500; }
.os-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 34px; }
.os-meta { margin-top: 18px; color: var(--faint); font-size: 13.5px; }

/* App window with floating notes, as in the video */
.os-stage { position: relative; max-width: 980px; margin: 64px auto 0; }
.os-window { position: relative; border-radius: 14px; overflow: hidden; border: 1px solid var(--line-2); background: var(--bg-2);
  box-shadow: 0 50px 120px -30px rgba(0, 0, 0, .85), 0 0 0 1px rgba(0, 0, 0, .6), 0 0 120px -40px rgba(214, 170, 105, .35); }
.os-window img { width: 100%; height: auto; }
.os-chip { position: absolute; display: inline-flex; align-items: center; gap: 9px; padding: 9px 15px; border-radius: 999px; font-size: 13.5px; white-space: nowrap;
  background: rgba(30, 28, 25, .9); border: 1px solid var(--line-2); backdrop-filter: blur(10px); box-shadow: 0 16px 40px -12px rgba(0, 0, 0, .8); animation: os-float 7s ease-in-out infinite; }
.os-chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px var(--gold); }
.os-chip.c1 { left: -46px; top: 14%; }
.os-chip.c2 { right: -40px; top: 9%; animation-delay: -2s; }
.os-chip.c3 { left: -24px; bottom: 16%; animation-delay: -4s; }
.os-chip.c4 { right: -52px; bottom: 26%; animation-delay: -5.5s; }
@keyframes os-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* Sections */
.os-section { padding: 110px 0; }
.os-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.os-eyebrow { margin-bottom: 14px; color: var(--gold); font-size: 12.5px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; }
.os-head h2 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 300; }
.os-head h2 em, .os-final h2 em { white-space: nowrap; }
.os-head p { margin-top: 18px; color: var(--muted); font-size: 17.5px; }

/* Before / after */
.os-compare { display: grid; grid-template-columns: 1fr 1.35fr; gap: 28px; align-items: stretch; }
.os-before { padding: 34px; border-radius: var(--radius); border: 1px dashed var(--line-2); }
.os-before small { color: var(--gold-2); font-size: 11.5px; font-weight: 600; letter-spacing: .22em; }
.os-before ul { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 16px; }
.os-before li { color: var(--faint); font-size: 19px; text-decoration: line-through; text-decoration-color: rgba(220, 187, 136, .55); text-decoration-thickness: 1.5px; }
.os-counts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.os-count { padding: 28px 24px; border-radius: var(--radius); background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line); }
.os-count b { display: block; font-family: var(--serif); font-size: 64px; font-weight: 400; line-height: 1; color: var(--gold); }
.os-count strong { display: block; margin-top: 14px; font-weight: 500; font-size: 17px; }
.os-count span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; line-height: 1.5; }
.os-compare-note { grid-column: 1 / -1; text-align: center; color: var(--muted); }

/* Video */
.os-video { position: relative; max-width: 980px; margin: 0 auto; border-radius: 16px; overflow: hidden; border: 1px solid var(--line-2); background: #000; aspect-ratio: 16 / 9;
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, .9); }
.os-video video { width: 100%; height: 100%; object-fit: cover; }

/* Features */
.os-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.os-feature { padding: 26px 22px; border-radius: var(--radius); background: rgba(27, 26, 24, .72); border: 1px solid var(--line); transition: border-color .25s, transform .25s; }
.os-feature:hover { border-color: rgba(220, 187, 136, .28); transform: translateY(-2px); }
.os-feature svg { width: 26px; height: 26px; color: var(--gold); }
.os-feature h3 { margin-top: 18px; font-size: 17px; font-weight: 500; letter-spacing: -.01em; line-height: 1.3; }
.os-feature p { margin-top: 8px; color: var(--muted); font-size: 14.5px; line-height: 1.55; }
.os-feature kbd { font: 500 12px var(--mono); padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--text); }

/* Plans */
.os-plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: start; }
@media (max-width: 1240px) { .os-plans { grid-template-columns: repeat(2, 1fr); } }
.os-plan { position: relative; display: flex; flex-direction: column; padding: 32px 28px; border-radius: 22px; background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line); }
.os-plan.featured { border-color: rgba(220, 187, 136, .5); box-shadow: 0 0 0 1px rgba(220, 187, 136, .2), 0 30px 80px -30px rgba(214, 170, 105, .35); }
.os-plan .tag { position: absolute; top: -12px; left: 28px; padding: 4px 12px; border-radius: 999px; background: linear-gradient(180deg, #e9cd9f, #c99f66); color: #1d160d; font-size: 12px; font-weight: 600; }
.os-plan h3 { font-size: 15px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.os-plan .who { margin-top: 6px; color: var(--muted); font-size: 14.5px; }
.os-price { display: flex; align-items: baseline; gap: 6px; margin-top: 22px; }
.os-price b { font-family: var(--serif); font-weight: 400; font-size: 54px; line-height: 1; color: var(--text); }
.os-price span { color: var(--muted); }
.os-price b, .os-price span { white-space: nowrap; }
/* Four plans side by side: narrower cards, smaller price so "49,90 €" stays on one line. */
@media (min-width: 1241px) { .os-plan { padding: 30px 22px; } .os-price b { font-size: 44px; } }
.os-budget { margin-top: 18px; padding: 12px 14px; border-radius: 12px; background: var(--gold-soft); border: 1px solid rgba(220, 187, 136, .2); font-size: 14.5px; color: var(--muted); }
.os-budget strong { color: var(--gold); font-weight: 600; }
.os-plan ul { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 10px; font-size: 14.5px; }
.os-plan li { position: relative; padding-left: 24px; color: var(--text); line-height: 1.45; }
.os-plan li::before { content: ""; position: absolute; left: 2px; top: 6px; width: 11px; height: 6px; border-left: 1.6px solid var(--gold); border-bottom: 1.6px solid var(--gold); transform: rotate(-45deg); }
.os-plan li.no { color: var(--faint); }
.os-plan li.no::before { border: 0; top: 10px; width: 10px; height: 1.6px; background: var(--faint); transform: none; }
.os-models { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
.os-models small { display: block; margin-bottom: 10px; color: var(--faint); font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.os-models div { display: flex; flex-wrap: wrap; gap: 6px; }
.os-models span { padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 12.5px; color: var(--text); }
.os-models span.lim { color: var(--muted); border-style: dashed; }
.os-models span.lim::after { content: " ·"; color: var(--gold-2); }
.os-plan .os-btn, .os-plan .os-ghost { margin-top: 26px; width: 100%; }
.os-plans-note { max-width: 820px; margin: 34px auto 0; text-align: center; color: var(--muted); font-size: 14.5px; line-height: 1.65; }
.os-plans-note b { color: var(--text); font-weight: 500; }

/* Steps */
.os-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.os-step { position: relative; padding: 30px 26px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(27, 26, 24, .6); }
.os-step::before { counter-increment: step; content: counter(step, decimal-leading-zero); font: 500 13px var(--mono); color: var(--gold); letter-spacing: .1em; }
.os-step h3 { margin-top: 16px; font-size: 20px; font-weight: 500; }
.os-step p { margin-top: 10px; color: var(--muted); font-size: 15px; }

/* FAQ */
.os-faq { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--line); }
.os-faq details { border-bottom: 1px solid var(--line); }
.os-faq summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 4px; cursor: pointer; list-style: none; font-size: 17.5px; font-weight: 500; }
.os-faq summary::-webkit-details-marker { display: none; }
.os-faq summary::after { content: "+"; flex: none; font: 300 26px/1 var(--sans); color: var(--gold); transition: transform .25s; }
.os-faq details[open] summary::after { transform: rotate(45deg); }
.os-faq details p { padding: 0 4px 24px; color: var(--muted); font-size: 15.5px; max-width: 720px; }

/* Final call to action and download */
.os-final { padding: 120px 0 90px; text-align: center; }
.os-final img { width: 148px; height: 148px; margin: 0 auto; border-radius: 34px; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .9), 0 0 90px -20px rgba(214, 170, 105, .45); }
.os-final h2 { margin-top: 34px; font-size: clamp(30px, 4.4vw, 48px); font-weight: 300; }
.os-final .os-cta { margin-top: 30px; }
.os-download { max-width: 680px; margin: 40px auto 0; padding: 18px 22px; border-radius: 14px; border: 1px solid var(--line); background: rgba(20, 19, 17, .7); text-align: left; font-size: 13.5px; color: var(--muted); }
.os-download dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
.os-download dt { color: var(--faint); }
.os-download dd { margin: 0; color: var(--text); min-width: 0; }
.os-hash { display: flex; align-items: center; gap: 10px; }
.os-hash code { font: 11.5px/1.5 var(--mono); word-break: break-all; color: var(--muted); }
.os-hash button { flex: none; padding: 5px 10px; border-radius: 8px; border: 1px solid var(--line-2); background: transparent; color: var(--text); font: 500 12px var(--sans); cursor: pointer; }
.os-hash button:hover { border-color: var(--gold); }
.os-download p { margin-top: 12px; font-size: 13px; line-height: 1.55; }

footer { padding: 34px 0 40px; border-top: 1px solid var(--line); color: var(--faint); font-size: 13.5px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }

/* Reveal on scroll (only when JS runs) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (max-width: 1020px) {
  .os-features { grid-template-columns: repeat(2, 1fr); }
  .os-plans { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .os-compare { grid-template-columns: 1fr; }
  .os-chip { display: none; }
}
@media (max-width: 760px) {
  .wrap { padding: 0 16px; }
  .menu-toggle { display: block; margin-left: auto; }
  .os-nav .wrap > .pwr-lang + .menu-toggle { margin-left: 8px; }
  .os-links { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 2px; padding: 12px 16px 18px;
    background: rgba(13, 12, 11, .97); border-bottom: 1px solid var(--line); display: none; }
  .os-links.open { display: flex; }
  .os-links a { padding: 12px; font-size: 16px; }
  .os-links .os-btn { margin: 8px 0 0; }
  .os-nav .wrap > .pwr-lang { margin-left: auto; }
  .os-hero { padding-top: 44px; }
  .os-stage { margin-top: 44px; }
  .os-section { padding: 76px 0; }
  .os-head { margin-bottom: 40px; }
  .os-counts { grid-template-columns: 1fr; }
  .os-count { display: grid; grid-template-columns: 64px 1fr; column-gap: 16px; align-items: center; padding: 20px; }
  .os-count b { grid-row: span 2; font-size: 52px; }
  .os-count strong { margin-top: 0; }
  .os-features { grid-template-columns: 1fr; }
  .os-steps { grid-template-columns: 1fr; }
  .os-before { padding: 26px 22px; }
  .os-download dl { grid-template-columns: 1fr; }
  .os-download dt { margin-top: 6px; }
  .os-cta .os-btn, .os-cta .os-ghost { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .os-chip { animation: none; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* Legal pages (terms, privacy) */
.os-legal { position: relative; z-index: 1; max-width: 820px; margin: 0 auto; padding: 120px 0 90px; }
.os-legal h1 { font-size: clamp(32px, 4.6vw, 48px); font-weight: 300; letter-spacing: -.02em; }
.os-legal .os-updated { margin-top: 10px; color: var(--muted); font-size: 14px; }
.os-legal h2 { margin-top: 44px; font-size: 21px; font-weight: 500; letter-spacing: -.01em; }
.os-legal p, .os-legal li { margin-top: 12px; color: var(--muted); font-size: 15.5px; line-height: 1.65; }
.os-legal ul { margin-top: 6px; padding-left: 22px; list-style: disc; }
.os-legal a { color: var(--gold); text-decoration: underline; text-underline-offset: 3px; }
.os-legal strong { color: var(--text); font-weight: 500; }
.os-legal .os-back { display: inline-block; margin-bottom: 28px; font-size: 14px; color: var(--muted); text-decoration: none; }