/* QServ landing page. Dark, energetic, bilingual (LTR/RTL through logical properties). No external resources. */
@font-face { font-family: "Tajawal"; font-weight: 400; font-style: normal; font-display: swap; src: url("../fonts/Tajawal-Regular.ttf") format("truetype"); }
@font-face { font-family: "Tajawal"; font-weight: 500; font-style: normal; font-display: swap; src: url("../fonts/Tajawal-Medium.ttf") format("truetype"); }
@font-face { font-family: "Tajawal"; font-weight: 700; font-style: normal; font-display: swap; src: url("../fonts/Tajawal-Bold.ttf") format("truetype"); }
@font-face { font-family: "Tajawal"; font-weight: 800; font-style: normal; font-display: swap; src: url("../fonts/Tajawal-ExtraBold.ttf") format("truetype"); }

:root {
  --bg: #060a16; --bg-2: #0a1020; --surface: rgba(255,255,255,.045); --surface-2: rgba(255,255,255,.075);
  --line: rgba(255,255,255,.09); --line-2: rgba(255,255,255,.16);
  --text: #eaf0fb; --muted: #9aa8c2; --faint: #6c7a96;
  --amber: #ffb020; --orange: #ff6b35; --cyan: #22d3ee; --green: #2ed573; --red: #ff5c5c; --violet: #8b7bff;
  --grad: linear-gradient(135deg, var(--amber), var(--orange));
  --grad-cool: linear-gradient(135deg, var(--cyan), var(--violet));
  --radius: 20px; --radius-sm: 12px;
  --shadow: 0 30px 60px -24px rgba(0,0,0,.7);
  --font: "Tajawal", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 400 17px/1.7 var(--font); color: var(--text); background: var(--bg); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; z-index: -2; background:
  radial-gradient(900px 600px at 85% -10%, rgba(255,107,53,.16), transparent 60%),
  radial-gradient(800px 600px at -10% 20%, rgba(34,211,238,.12), transparent 60%),
  radial-gradient(900px 700px at 50% 120%, rgba(139,123,255,.12), transparent 60%), var(--bg); }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; }
.container { width: min(1200px, 100% - 48px); margin-inline: auto; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.skip { position: absolute; inset-inline-start: 12px; top: -60px; z-index: 100; background: var(--amber); color: #111; padding: 10px 16px; border-radius: 10px; font-weight: 700; }
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 8px; }
.i { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.i.sm { width: 18px; height: 18px; } .i.lg { width: 28px; height: 28px; }
[dir="rtl"] .flip { transform: scaleX(-1); }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ------------------------------------------------------------------ header */
.nav { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, backdrop-filter .25s; }
.nav.scrolled { background: rgba(6,10,22,.78); backdrop-filter: blur(16px) saturate(1.5); -webkit-backdrop-filter: blur(16px) saturate(1.5); border-color: var(--line); }
.nav-in { display: flex; align-items: center; gap: 28px; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; }
.brand img { width: 42px; height: 42px; border-radius: 12px; box-shadow: 0 10px 24px -8px rgba(255,107,53,.6); }
.brand b { display: block; font-size: 21px; letter-spacing: .5px; line-height: 1; }
.brand small { display: block; font-size: 11.5px; font-weight: 500; color: var(--muted); letter-spacing: .3px; margin-top: 4px; }
.links { display: flex; gap: 6px; margin-inline-start: 18px; }
.links a { padding: 8px 14px; border-radius: 99px; color: var(--muted); font-weight: 500; font-size: 15.5px; transition: color .2s, background .2s; }
.links a:hover, .links a.on { color: var(--text); background: var(--surface-2); }
.nav-actions { margin-inline-start: auto; display: flex; align-items: center; gap: 10px; }
.lang { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid var(--line-2); border-radius: 99px; font-weight: 700; font-size: 14.5px; color: var(--text); transition: border-color .2s, background .2s; }
.lang:hover { border-color: var(--amber); background: var(--surface); }
.menu-btn { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--surface); color: var(--text); cursor: pointer; place-items: center; }

/* ------------------------------------------------------------------ buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 26px; border-radius: 14px; border: 1px solid transparent; font: 700 16.5px/1 var(--font); cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s, border-color .2s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { color: #17110a; background: var(--grad); box-shadow: 0 18px 40px -14px rgba(255,107,53,.75); }
.btn.primary:hover { box-shadow: 0 22px 46px -12px rgba(255,107,53,.9); }
.btn.ghost { color: var(--text); background: var(--surface); border-color: var(--line-2); }
.btn.ghost:hover { border-color: var(--cyan); background: var(--surface-2); }
.btn.small { padding: 11px 20px; font-size: 15px; border-radius: 12px; }
.btn.wide { width: 100%; }

/* ------------------------------------------------------------------ hero */
.hero { position: relative; padding: 56px 0 90px; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 20%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 20%, transparent 75%); opacity: .55; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 16px; border-radius: 99px; background: var(--surface); border: 1px solid var(--line-2); color: var(--amber); font-weight: 700; font-size: 14.5px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 4px rgba(255,176,32,.22); animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(255,176,32,0); } }
.hero h1 { font-size: clamp(38px, 5.4vw, 68px); font-weight: 800; margin-top: 22px; }
.hero h1 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { color: var(--muted); font-size: clamp(17px, 1.6vw, 20px); margin-top: 22px; max-width: 58ch; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.ticks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 22px; margin: 40px 0 0; padding: 0; list-style: none; }
.ticks li { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 15.5px; }
.ticks .i { color: var(--green); width: 20px; height: 20px; }

.visual { position: relative; }
.visual::before { content: ""; position: absolute; inset: -6% -6% -6% -6%; background: radial-gradient(closest-side, rgba(255,107,53,.28), transparent 70%); filter: blur(10px); z-index: -1; }
.visual-frame { border-radius: 28px; overflow: hidden; border: 1px solid var(--line-2); box-shadow: var(--shadow), 0 0 0 8px rgba(255,255,255,.025); background: #0b1330; }
.visual-frame img { display: block; width: 100%; height: auto; }
.float { position: absolute; display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 16px; background: rgba(12,18,40,.78); border: 1px solid var(--line-2); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 20px 40px -16px rgba(0,0,0,.8); animation: bob 6s ease-in-out infinite; }
.float .ic { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; flex: none; }
.float b { display: block; font-size: 16px; line-height: 1.25; }
.float small { display: block; color: var(--muted); font-size: 12.5px; line-height: 1.3; }
.float.f1 { inset-inline-start: -28px; top: 16%; }
.float.f2 { inset-inline-end: -22px; top: 40%; animation-delay: -2s; }
.float.f3 { inset-inline-start: 6%; bottom: -22px; animation-delay: -4s; }
.ic.amber { background: rgba(255,176,32,.16); color: var(--amber); } .ic.red { background: rgba(255,92,92,.16); color: var(--red); } .ic.green { background: rgba(46,213,115,.16); color: var(--green); } .ic.cyan { background: rgba(34,211,238,.16); color: var(--cyan); }
@keyframes bob { 50% { transform: translateY(-10px); } }

/* ------------------------------------------------------------------ sections */
.section { padding: 100px 0; position: relative; }
.section.alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,.025) 20%, rgba(255,255,255,.025) 80%, transparent); }
.head { max-width: 760px; margin-bottom: 56px; }
.head.center { text-align: center; margin-inline: auto; }
.head h2 { font-size: clamp(30px, 3.8vw, 48px); font-weight: 800; margin-top: 16px; }
.head p { color: var(--muted); font-size: 18.5px; margin-top: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform .25s, border-color .25s, background .25s; position: relative; overflow: hidden; }
.card:hover { transform: translateY(-4px); border-color: var(--line-2); background: var(--surface-2); }
.card h3 { font-size: 21px; font-weight: 700; margin: 18px 0 8px; }
.card p { color: var(--muted); font-size: 16px; }
.ico { width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; color: #15100a; background: var(--grad); box-shadow: 0 14px 28px -12px rgba(255,107,53,.7); }
.ico.cool { background: var(--grad-cool); color: #07101c; box-shadow: 0 14px 28px -12px rgba(34,211,238,.6); }
.grid { display: grid; gap: 22px; }
.grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.value-card .num { position: absolute; inset-inline-end: 22px; top: 8px; font-size: 80px; font-weight: 800; line-height: 1; color: rgba(255,255,255,.05); }

/* how it works */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; counter-reset: s; position: relative; }
.steps::before { content: ""; position: absolute; inset-inline: 16% 16%; top: 38px; height: 2px; background: repeating-linear-gradient(90deg, var(--line-2) 0 8px, transparent 8px 16px); }
.step { text-align: center; padding: 0 12px; position: relative; }
.step .n { width: 76px; height: 76px; margin: 0 auto 22px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-2); border: 2px solid var(--amber); color: var(--amber); box-shadow: 0 0 0 8px rgba(255,176,32,.08), 0 18px 36px -14px rgba(255,176,32,.6); position: relative; z-index: 1; }
.step h3 { font-size: 24px; font-weight: 800; margin-bottom: 10px; }
.step p { color: var(--muted); max-width: 34ch; margin-inline: auto; }

/* split layout */
.split { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 64px; align-items: center; }
.split.rev { grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); }
.checks { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; color: var(--text); font-size: 17px; }
.checks .i { color: var(--green); margin-top: 4px; width: 22px; height: 22px; }

/* dashboard mock */
.window { border-radius: 22px; background: #0a1124; border: 1px solid var(--line-2); box-shadow: var(--shadow), 0 0 0 10px rgba(255,255,255,.02); overflow: hidden; direction: ltr; }
[dir="rtl"] .window { direction: rtl; }
.win-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: rgba(255,255,255,.04); border-bottom: 1px solid var(--line); }
.win-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; } .win-bar i:nth-child(2) { background: #febc2e; } .win-bar i:nth-child(3) { background: #28c840; }
.win-bar span { margin-inline-start: 14px; flex: 1; max-width: 300px; padding: 4px 14px; border-radius: 99px; background: rgba(255,255,255,.06); color: var(--muted); font: 500 12.5px var(--mono); direction: ltr; text-align: start; }
.win-body { display: grid; grid-template-columns: 62px 1fr; min-height: 380px; }
.win-side { border-inline-end: 1px solid var(--line); padding: 16px 0; display: flex; flex-direction: column; align-items: center; gap: 14px; background: rgba(255,255,255,.02); }
.win-side b { width: 34px; height: 34px; border-radius: 10px; background: var(--grad); }
.win-side i { width: 30px; height: 30px; border-radius: 9px; background: var(--surface-2); }
.win-side i.on { background: rgba(255,176,32,.25); box-shadow: inset 0 0 0 1.5px var(--amber); }
.win-main { padding: 20px; display: grid; gap: 16px; }
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.kpi { padding: 12px 14px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.kpi small { display: block; color: var(--muted); font-size: 12px; }
.kpi strong { display: block; font-size: 20px; font-weight: 800; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi em { font-style: normal; font-size: 11.5px; color: var(--green); font-weight: 700; }
.charts { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 12px; }
.panel { padding: 14px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.panel h4 { margin: 0 0 12px; font-size: 13px; font-weight: 700; color: var(--muted); }
.bars { display: flex; align-items: flex-end; gap: 9px; height: 132px; }
.bars div { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 6px; height: 100%; }
.bars i { width: 100%; max-width: 30px; border-radius: 7px 7px 3px 3px; background: linear-gradient(180deg, var(--amber), var(--orange)); height: 0; transition: height 1s cubic-bezier(.2,.8,.2,1); }
.bars div:nth-child(odd) i { background: linear-gradient(180deg, var(--cyan), #3b82f6); }
.bars span { font-size: 10.5px; color: var(--faint); }
.in .bars i { height: var(--h); }
.donut { display: flex; align-items: center; gap: 16px; }
.donut svg { width: 104px; height: 104px; transform: rotate(-90deg); flex: none; }
.donut circle { fill: none; stroke-width: 14; stroke-linecap: butt; stroke-dasharray: 0 400; transition: stroke-dasharray 1.2s ease; }
.in .donut circle { stroke-dasharray: var(--d) 400; }
.legend { display: grid; gap: 7px; font-size: 12.5px; color: var(--muted); list-style: none; padding: 0; margin: 0; }
.legend li { display: flex; align-items: center; gap: 8px; }
.legend i { width: 9px; height: 9px; border-radius: 3px; }
.legend b { color: var(--text); margin-inline-start: auto; font-variant-numeric: tabular-nums; }

/* tanks */
.tanks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.tank { text-align: center; padding: 26px 18px; }
.tank .cyl { position: relative; width: 112px; height: 190px; margin: 0 auto 18px; border-radius: 22px 22px 18px 18px; border: 2px solid var(--line-2); background: rgba(255,255,255,.03); overflow: hidden; }
.tank .liq { position: absolute; inset-inline: 0; bottom: 0; height: 0; transition: height 1.6s cubic-bezier(.2,.8,.2,1); background: linear-gradient(180deg, var(--c), color-mix(in srgb, var(--c) 55%, #000)); }
.tank .liq::before { content: ""; position: absolute; inset-inline: -20%; top: -9px; height: 18px; border-radius: 50%; background: var(--c); opacity: .85; animation: wave 3.4s ease-in-out infinite; }
@keyframes wave { 50% { transform: translateX(9%) scaleY(1.2); } }
.in .tank .liq { height: var(--lvl); }
.tank .pct { position: absolute; inset: 0; display: grid; place-items: center; font-size: 26px; font-weight: 800; text-shadow: 0 2px 10px rgba(0,0,0,.6); }
.tank .ticks2 { position: absolute; inset-inline-end: 0; top: 10px; bottom: 10px; width: 14px; background: repeating-linear-gradient(180deg, rgba(255,255,255,.35) 0 2px, transparent 2px 19px); }
.tank h3 { font-size: 20px; margin: 0 0 4px; font-weight: 700; }
.tank small { color: var(--muted); display: block; }
.badge { display: inline-flex; align-items: center; gap: 7px; margin-top: 12px; padding: 5px 14px; border-radius: 99px; font-size: 13.5px; font-weight: 700; }
.badge.ok { background: rgba(46,213,115,.14); color: var(--green); } .badge.low { background: rgba(255,92,92,.15); color: var(--red); animation: blink 1.6s infinite; }
@keyframes blink { 50% { opacity: .55; } }

/* services bento */
.bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 22px; }
.bento .card { grid-column: span 2; }
.bento .card.big { grid-column: span 3; }
.bento .card.big:last-child { grid-column: span 3; }

/* security band */
.band { border-radius: 32px; padding: 64px; background: linear-gradient(135deg, rgba(34,211,238,.1), rgba(139,123,255,.12)); border: 1px solid var(--line-2); position: relative; overflow: hidden; }
.band::after { content: ""; position: absolute; inset-inline-end: -120px; top: -120px; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(closest-side, rgba(34,211,238,.25), transparent); }
.sec-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 30px; margin-top: 44px; position: relative; z-index: 1; }
.sec-grid .ico { width: 48px; height: 48px; border-radius: 14px; }
.sec-grid h3 { font-size: 18.5px; margin: 16px 0 6px; }
.sec-grid p { color: var(--muted); font-size: 15.5px; }

/* faq */
.faq { max-width: 860px; margin-inline: auto; display: grid; gap: 14px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 0 24px; transition: border-color .2s, background .2s; }
.faq details[open] { border-color: var(--line-2); background: var(--surface-2); }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 16px; padding: 22px 0; font-size: 18.5px; font-weight: 700; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .i { margin-inline-start: auto; transition: transform .25s; color: var(--amber); }
.faq details[open] summary .i { transform: rotate(180deg); }
.faq details p { color: var(--muted); padding: 0 0 24px; font-size: 16.5px; }

/* contact */
.contact { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 28px; align-items: stretch; }
.info { display: grid; gap: 22px; }
.info-row { display: flex; gap: 18px; align-items: flex-start; }
.info-row .ico { width: 50px; height: 50px; border-radius: 15px; }
.info-row h3 { font-size: 15px; color: var(--muted); font-weight: 500; margin: 0 0 4px; }
.info-row p, .info-row a.val { font-size: 19.5px; font-weight: 700; color: var(--text); overflow-wrap: anywhere; }
.info-row a.val:hover { color: var(--amber); }
.info-row .ltr { direction: ltr; unicode-bidi: embed; display: inline-block; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.signin { display: flex; flex-direction: column; justify-content: center; gap: 16px; background: linear-gradient(160deg, rgba(255,176,32,.12), rgba(255,107,53,.06)); }
.signin h3 { margin: 0; font-size: 26px; font-weight: 800; }
.signin form { display: flex; gap: 10px; }
.signin input { flex: 1; min-width: 0; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line-2); background: rgba(0,0,0,.35); color: var(--text); font: 500 16px var(--font); direction: ltr; text-align: start; }
.signin input::placeholder { color: var(--faint); }
.signin input:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px rgba(255,176,32,.25); }
.signin small { color: var(--muted); min-height: 1.4em; }
.signin small.err { color: var(--red); }
.host-hint { font: 500 14px var(--mono); color: var(--faint); direction: ltr; text-align: start; }

/* cta + footer */
.cta { text-align: center; padding: 80px 28px; border-radius: 32px; background: var(--grad); color: #17110a; position: relative; overflow: hidden; }
.cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 20% 0, rgba(255,255,255,.35), transparent 60%), radial-gradient(500px 300px at 90% 120%, rgba(0,0,0,.2), transparent 60%); }
.cta h2 { font-size: clamp(28px, 3.6vw, 44px); font-weight: 800; position: relative; }
.cta p { font-size: 19px; margin: 12px 0 30px; opacity: .85; position: relative; }
.cta .btn { background: #0b1022; color: #fff; position: relative; box-shadow: 0 20px 40px -14px rgba(0,0,0,.6); }
footer { margin-top: 90px; border-top: 1px solid var(--line); padding: 56px 0 34px; background: rgba(0,0,0,.25); }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.foot p { color: var(--muted); max-width: 40ch; margin-top: 14px; }
.foot h4 { margin: 0 0 14px; font-size: 15px; color: var(--faint); font-weight: 500; letter-spacing: .5px; }
.foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.foot a { color: var(--text); opacity: .85; } .foot a:hover { color: var(--amber); opacity: 1; }
.foot .ltr { direction: ltr; unicode-bidi: embed; display: inline-block; }
.copy { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--faint); font-size: 14.5px; }

/* reveal on scroll */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1); transition-delay: var(--d, 0s); }
.rv.in { opacity: 1; transform: none; }
.no-js .rv { opacity: 1; transform: none; }
.no-js .bars i { height: var(--h); } .no-js .tank .liq { height: var(--lvl); } .no-js .donut circle { stroke-dasharray: var(--d) 400; }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1060px) {
  .hero-grid, .split, .split.rev, .contact { grid-template-columns: minmax(0, 1fr); }
  .split { gap: 44px; } .hero-grid { gap: 70px; }
  .visual { max-width: 620px; margin-inline: auto; width: 100%; }
  .grid.c3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sec-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); } .bento .card, .bento .card.big { grid-column: span 1; }
  .foot { grid-template-columns: 1fr 1fr; } .foot > :first-child { grid-column: 1 / -1; }
  .links { display: none; position: absolute; inset-inline: 0; top: 74px; margin: 0; padding: 14px 24px 22px; flex-direction: column; gap: 4px; background: rgba(6,10,22,.97); border-bottom: 1px solid var(--line); }
  .nav.open .links { display: flex; }
  .links a { padding: 14px 16px; font-size: 17px; }
  .menu-btn { display: grid; }
  .nav-actions .signin-link { display: none; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .container { width: min(1200px, 100% - 32px); }
  .section { padding: 72px 0; }
  .hero { padding: 36px 0 64px; }
  .grid.c3, .grid.c2, .steps, .tanks { grid-template-columns: minmax(0, 1fr); }
  .steps::before { display: none; }
  .ticks { grid-template-columns: minmax(0, 1fr); }
  .band { padding: 36px 24px; border-radius: 24px; }
  .sec-grid { grid-template-columns: minmax(0, 1fr); }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .charts { grid-template-columns: minmax(0, 1fr); }
  .win-body { grid-template-columns: 0 1fr; } .win-side { display: none; }
  .float.f1 { inset-inline-start: -8px; } .float.f2 { inset-inline-end: -8px; }
  .float { padding: 9px 12px; } .float .ic { width: 34px; height: 34px; } .float b { font-size: 14px; }
  .nav-actions .btn { display: none; }
  .nav-in { gap: 12px; }
  .brand small { display: none; }
  .signin form { flex-direction: column; }
  .foot { grid-template-columns: minmax(0, 1fr); }
  .cta { padding: 56px 22px; border-radius: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .rv { opacity: 1; transform: none; }
  .bars i { height: var(--h); } .tank .liq { height: var(--lvl); } .donut circle { stroke-dasharray: var(--d) 400; }
}
@media print { .nav, .cta, .float, .menu-btn { display: none !important; } body { background: #fff; color: #000; } }

/* ------------------------------------------------------------------ polish */
.nav-in { gap: 18px; }
.links { gap: 2px; margin-inline-start: 8px; }
.links a { padding: 8px 11px; font-size: 15.5px; white-space: nowrap; }
.brand small { white-space: nowrap; }
.brand span { white-space: nowrap; }
.nav-actions .btn, .nav-actions .lang { white-space: nowrap; }
[dir="rtl"] .hero h1 { font-size: clamp(36px, 4.6vw, 60px); line-height: 1.28; }
[dir="rtl"] .head h2 { line-height: 1.3; }
@media (max-width: 1240px) { .signin-link { display: none; } }
h1, h2 { text-wrap: balance; }
footer { margin-top: 40px; }
[dir="rtl"] .head h2 { font-size: clamp(28px, 3.5vw, 44px); }
.brand { margin-inline-end: 14px; }

/* ---------------------------------------------------------------- light / dark switch */
.theme-btn { width: 40px; height: 40px; border-radius: 99px; border: 1px solid var(--line-2); background: transparent; color: var(--text); cursor: pointer; display: inline-grid; place-items: center; transition: border-color .2s, background .2s; }
.theme-btn:hover { border-color: var(--amber); background: var(--surface); }
.theme-btn .i-sun { display: none; }
:root[data-theme="light"] .theme-btn .i-moon { display: block; }
:root[data-theme="light"] .theme-btn .i-sun { display: none; }
:root[data-theme="dark"] .theme-btn .i-sun { display: block; }
:root[data-theme="dark"] .theme-btn .i-moon { display: none; }

/* light is the default; the dark values above stay as they are */
:root[data-theme="light"] {
  --bg: #f5f7fc; --bg-2: #eaeff8; --surface: #ffffff; --surface-2: #eef2fa;
  --line: rgba(15,27,51,.10); --line-2: rgba(15,27,51,.18);
  --text: #0f1b33; --muted: #4b5a77; --faint: #7a88a3;
  --amber: #e07b00; --orange: #e8501a; --cyan: #0891b2; --green: #059669; --red: #dc2626; --violet: #6d5ce8;
  --grad: linear-gradient(135deg, #ffb020, #ff6b35);
  --shadow: 0 30px 60px -30px rgba(30,41,90,.35);
  color-scheme: light;
}
:root[data-theme="light"] body::before { background:
  radial-gradient(900px 600px at 85% -10%, rgba(255,107,53,.12), transparent 60%),
  radial-gradient(800px 600px at -10% 20%, rgba(8,145,178,.10), transparent 60%),
  radial-gradient(900px 700px at 50% 120%, rgba(109,92,232,.08), transparent 60%), var(--bg); }
:root[data-theme="light"] .nav.scrolled { background: rgba(255,255,255,.86); }
:root[data-theme="light"] .links { background: rgba(255,255,255,.98); }
:root[data-theme="light"] .brand img { box-shadow: none; border-radius: 0; }
:root[data-theme="light"] .section.alt { background: linear-gradient(180deg, transparent, rgba(15,27,51,.035) 20%, rgba(15,27,51,.035) 80%, transparent); }
:root[data-theme="light"] .value-card .num { color: rgba(15,27,51,.06); }
:root[data-theme="light"] .float { background: rgba(255,255,255,.92); box-shadow: 0 18px 40px -16px rgba(30,41,90,.35); }
:root[data-theme="light"] .band { background: linear-gradient(135deg, rgba(8,145,178,.09), rgba(109,92,232,.10)); }
:root[data-theme="light"] .signin input { background: #fff; }
:root[data-theme="light"] .signin { background: linear-gradient(160deg, rgba(255,176,32,.16), rgba(255,107,53,.07)); }
:root[data-theme="light"] footer { background: rgba(15,27,51,.04); }
:root[data-theme="light"] .tank .cyl { background: rgba(15,27,51,.04); }
:root[data-theme="light"] .tank .pct { text-shadow: 0 1px 6px rgba(0,0,0,.5); color: #fff; }
:root[data-theme="light"] .step .n { background: #fff; }
:root[data-theme="light"] .btn.ghost:hover, :root[data-theme="light"] .lang:hover { background: var(--surface-2); }
:root[data-theme="light"] .grad-text { background-image: linear-gradient(135deg, #e07b00, #e8501a); }
/* the dashboard picture is a screenshot: it stays dark in both modes */
:root[data-theme="light"] .window {
  --text: #eaf0fb; --muted: #9aa8c2; --faint: #6c7a96; --line: rgba(255,255,255,.09); --line-2: rgba(255,255,255,.16);
  --amber: #ffb020; --orange: #ff6b35; --cyan: #22d3ee; --green: #2ed573; --red: #ff5c5c; --violet: #8b7bff; --surface: rgba(255,255,255,.045); --surface-2: rgba(255,255,255,.075);
  color: var(--text);
}