/* SDLE Brain's site: the app's own Sky colours (lib/theme/tokens/sky_colors.dart) and type. */
:root{
  --page:#F3F9FD;--surface:#FFFFFF;--sky:#A9D9F5;--wash:#D7ECFA;--sky-2:#E2F0FA;--sky-3:#CDE6F6;
  --ink:#152433;--ink-2:#53677A;--line:#D4E2EC;--blue:#1B5E8C;--tint:#DDEBF6;--on-tint:#124B72;--slate:#3A82B4;
  --rose:#DF8D8B;--rose-tint:#FBE9E8;--on-rose:#A64F4C;--mark:#FFE27A;--shadow:rgba(106,159,196,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--ink);font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
.narrow{max-width:760px}

/* Top bar */
.nav{position:sticky;top:0;z-index:10;background:rgba(243,249,253,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;min-height:64px}
.brand{display:flex;white-space:nowrap;align-items:center;gap:10px;text-decoration:none;font-weight:600;font-size:18px;color:var(--ink)}
.brand .mark{width:40px;height:40px;border-radius:50%;background:#fff;display:grid;place-items:center;box-shadow:0 4px 12px var(--shadow)}
.brand .mark img{width:26px;height:26px;object-fit:contain}
.nav nav{margin-left:auto;display:flex;align-items:center;gap:20px;font-size:15px}
.nav nav a{color:var(--ink-2);text-decoration:none}
.nav nav a:hover{color:var(--blue)}

h1,h2{font-family:"IBM Plex Serif",Georgia,serif;font-weight:600;letter-spacing:-.015em;line-height:1.14;margin:0}
h3{font-size:18px;line-height:1.3;margin:0}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.mark-hl{background:linear-gradient(transparent 58%,var(--mark) 58%,var(--mark) 92%,transparent 92%);padding:0 .08em}

/* Hero: the sign-in screen's sky, with a few faint white molars as on the icon. */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--page) 0%,var(--sky-2) 55%,var(--sky-3) 100%)}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none}
.hero::before{width:620px;height:620px;right:-180px;top:-220px;background:radial-gradient(#C6E2F6,transparent 70%)}
.hero::after{width:520px;height:520px;left:-200px;bottom:-240px;background:radial-gradient(#BBDCF3,transparent 70%)}
/* The molar of the icon's teeth (tools/logo/logo.py): white, with a breath of blue at the edge. */
.tooth{position:absolute;width:30px;aspect-ratio:600/690;transform:rotate(var(--r,-8deg));pointer-events:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-300 -330 600 690'%3E%3Cpath d='M0,-240 C-40,-300 -120,-315 -180,-290 C-265,-255 -285,-160 -270,-70 C-258,0 -235,50 -215,110 C-200,190 -185,270 -160,320 C-145,350 -105,352 -95,318 C-80,250 -60,150 0,150 C60,150 80,250 95,318 C105,352 145,350 160,320 C185,270 200,190 215,110 C235,50 258,0 270,-70 C285,-160 265,-255 180,-290 C120,-315 40,-300 0,-240 Z' fill='%23fff' fill-opacity='.88' stroke='%236A9FC4' stroke-opacity='.32' stroke-width='14'/%3E%3C/svg%3E") center/contain no-repeat}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding-block:72px 84px}
.hero h1{font-size:clamp(40px,5.2vw,56px);margin-top:12px;text-wrap:balance}
.lead{font-size:19px;color:var(--ink-2);margin:20px 0 0;max-width:34em}
.stores{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.store{display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:#fff;border-radius:14px;padding:10px 18px;text-decoration:none;min-height:52px}
.store svg{width:22px;height:22px;fill:#fff;flex:none}
.store small{display:block;font-size:11px;opacity:.75;line-height:1.2}
.store strong{display:block;font-size:16px;line-height:1.25;font-weight:600}
.soon{font-size:14px;color:var(--ink-2);margin-top:12px}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;padding:0;list-style:none}
.facts li{background:rgba(255,255,255,.78);border:1px solid #fff;border-radius:999px;padding:6px 14px;font-size:14px;font-weight:600;color:var(--blue)}
.hero-art{background:rgba(255,255,255,.35);border-radius:28px;padding:10px;box-shadow:0 30px 60px -30px var(--shadow)}

/* Sections */
section{padding-block:80px}
.center{text-align:center}
.section-title{font-size:clamp(30px,4vw,42px)}
.section-lead{color:var(--ink-2);font-size:18px;margin:14px auto 0;max-width:36em}
.problem{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.problem p{color:var(--ink-2);font-size:18px}
.panel{background:var(--sky-2);border-radius:24px;padding:8px}
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:48px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:24px;overflow:hidden;display:flex;flex-direction:column}
.feature .panel{border-radius:0;padding:8px 8px 0}
.feature .body{padding:22px 26px 26px}
.feature p{color:var(--ink-2);margin:8px 0 0;font-size:16px}
.feature.wide{grid-column:1/-1;display:grid;grid-template-columns:1.1fr 1fr;align-items:center}
.feature.wide .panel{padding:8px;height:100%;display:grid;place-items:center}
.also{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px;padding:0;list-style:none}
.also li{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px 22px}
.also .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--tint);color:var(--on-tint);margin-bottom:12px}
.also li:nth-child(even) .ic{background:var(--rose-tint);color:var(--on-rose)}
.also .ic svg{width:20px;height:20px;fill:currentColor}
.also p{margin:4px 0 0;color:var(--ink-2);font-size:15px}
.cta{background:linear-gradient(180deg,var(--sky-2),var(--sky-3));border-radius:32px;padding:56px 28px;text-align:center;position:relative;overflow:hidden}
.cta .stores{justify-content:center}

/* Legal pages */
.legal{padding-block:56px 72px}
.legal h1{font-size:clamp(36px,6vw,50px);margin-top:10px}
.legal h2{font-size:24px;margin:44px 0 10px}
.legal h3{font-size:17px;margin:22px 0 4px}
.legal p,.legal li{color:#2B3C4D}
.legal ul,.legal ol{padding-left:22px}
.legal li{margin:6px 0}
.date{color:var(--ink-2);font-size:15px;margin-top:10px}
.summary{margin-top:30px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 24px}
.summary h2{margin:0 0 8px;font-size:20px}
.steps,.legal .steps{counter-reset:s;list-style:none;padding:0;margin:20px 0 0}
.steps li{counter-increment:s;position:relative;padding:14px 18px 14px 60px;background:var(--surface);border:1px solid var(--line);border-radius:16px;margin:10px 0}
.steps li::before{content:counter(s);position:absolute;left:16px;top:13px;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;font-weight:600;display:grid;place-items:center;font-size:15px}
.note{background:var(--tint);color:var(--ink);border-radius:16px;padding:16px 20px;margin-top:22px;font-size:16px}
table{width:100%;border-collapse:collapse;font-size:15px;margin-top:10px}
th,td{text-align:left;vertical-align:top;padding:10px 10px 10px 0;border-bottom:1px solid var(--line)}
th{font-weight:600;color:var(--ink)}
.tablewrap{overflow-x:auto}

footer{border-top:1px solid var(--line);padding-block:28px;font-size:14px;color:var(--ink-2)}
footer .wrap{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--ink-2)}

@media (max-width:860px){
  .hero .wrap,.problem,.feature.wide{grid-template-columns:1fr}
  .hero .wrap{padding-block:48px 56px;gap:32px}
  .features{grid-template-columns:1fr}
  .also{grid-template-columns:1fr}
  section{padding-block:56px}
  .nav nav{gap:14px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Language switch (kept top right in both directions) */
.nav .wrap{direction:ltr}
.lang{font:inherit;font-size:14px;font-weight:600;color:var(--blue);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 16px;cursor:pointer;min-height:36px;box-shadow:0 2px 8px var(--shadow)}
.lang:hover{background:var(--tint)}
html[lang="ar"] .lang{font-family:"IBM Plex Sans Arabic",system-ui,sans-serif}

/* Arabic: Plex Sans Arabic for everything, including headings (the serif has no Arabic). */
html[lang="ar"] body,html[lang="ar"] h1,html[lang="ar"] h2,html[lang="ar"] h3{font-family:"IBM Plex Sans Arabic","IBM Plex Sans",system-ui,sans-serif}
html[lang="ar"] h1,html[lang="ar"] h2{letter-spacing:0;line-height:1.35;font-weight:700}
html[lang="ar"] .eyebrow{letter-spacing:0;font-size:15px}
html[lang="ar"] body{line-height:1.85}
html[lang="ar"] .store small{opacity:.85}
html[lang="ar"] .store{direction:rtl}
@media (max-width:860px){.nav nav{gap:12px;font-size:14px}.nav .wrap{gap:10px}.nav nav a[href="/privacy"]{display:none}}
.nav nav a{white-space:nowrap}
@media (max-width:520px){.nav nav a[href="#features"]{display:none}}

/* Devices: an iPad with an iPhone in front of it, drawn in CSS around the real screens. */
.duo{position:relative;aspect-ratio:100/74}
.dev{position:absolute;background:#121c26;box-shadow:0 0 0 1px rgba(255,255,255,.06) inset,0 40px 70px -30px rgba(20,58,92,.55),0 18px 30px -18px rgba(20,58,92,.35)}
.dev img{width:100%;height:100%;object-fit:cover;display:block;background:#fff}
.ipad{left:0;top:0;width:86%;padding:1.5%;border-radius:clamp(16px,2.6vw,30px)}
.ipad img{aspect-ratio:4/3;border-radius:clamp(9px,1.5vw,18px)}
.iphone{right:0;bottom:0;width:27.5%;padding:1.15%;border-radius:clamp(22px,3.6vw,44px);box-shadow:0 0 0 1px rgba(255,255,255,.08) inset,0 0 0 2px #2b3642,0 46px 70px -26px rgba(20,58,92,.6)}
.iphone img{aspect-ratio:1206/2622;border-radius:clamp(17px,3vw,37px)}
.iphone::after{content:"";position:absolute;top:3.2%;left:50%;width:30%;height:2.6%;transform:translateX(-50%);background:#121c26;border-radius:999px}

/* Hero devices */
.hero .wrap{grid-template-columns:.92fr 1.08fr}
.hero-devices{position:relative;padding:4% 0 6% 2%}
.hero-devices .duo{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.hero-devices .iphone{animation:rise 1s .15s cubic-bezier(.2,.7,.2,1) both}
.chip{position:absolute;display:flex;align-items:center;gap:8px;background:#fff;border-radius:14px;padding:10px 14px;font-size:14px;font-weight:600;color:var(--ink);box-shadow:0 14px 30px -12px rgba(20,58,92,.35);white-space:nowrap;animation:float 6s ease-in-out infinite}
.chip .tick{width:24px;height:24px;border-radius:50%;background:#16795f;color:#fff;display:grid;place-items:center;font-size:13px}
.chip-a{left:-4%;bottom:9%}
.chip-b{right:22%;top:-1%;flex-direction:column;align-items:flex-start;gap:2px;animation-delay:-3s}
.chip .hy{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-rose);background:var(--rose-tint);border-radius:6px;padding:2px 7px}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* Tour: pick a scene, both devices change */
.tour{padding-top:0}
.tour-card{position:relative;overflow:hidden;display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center;padding:56px 48px;border-radius:32px;background:radial-gradient(120% 90% at 85% 10%,#D3E9F8 0%,transparent 60%),linear-gradient(180deg,var(--sky-2),var(--sky-3))}
.tour-lead{color:var(--ink-2);font-size:18px;margin:14px 0 0}
.scenes{display:flex;flex-direction:column;gap:10px;margin-top:28px}
.scene{position:relative;overflow:hidden;display:flex;gap:14px;align-items:flex-start;text-align:start;font:inherit;color:var(--ink);background:transparent;border:1px solid transparent;border-radius:18px;padding:14px 16px;cursor:pointer;transition:background .25s,box-shadow .25s,border-color .25s}
.scene:hover{background:rgba(255,255,255,.5)}
.scene.on{background:#fff;border-color:#fff;box-shadow:0 14px 30px -18px rgba(20,58,92,.45)}
.scene .num{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:14px;background:rgba(27,94,140,.1);color:var(--blue)}
.scene.on .num{background:var(--blue);color:#fff}
.scene strong{display:block;font-size:17px;line-height:1.35}
.scene .txt span{display:block;font-size:15px;line-height:1.5;color:var(--ink-2);max-height:0;opacity:0;overflow:hidden;transition:max-height .35s,opacity .35s,margin .35s}
.scene.on .txt span{max-height:80px;opacity:1;margin-top:4px}
.scene .bar{position:absolute;inset-inline-start:0;bottom:0;height:3px;width:0;background:var(--blue);opacity:.55}
.scene.on .bar{animation:fill 6s linear forwards}
.tour-card.paused .scene.on .bar{animation:none;width:0}
@keyframes fill{to{width:100%}}
.stage{position:relative;aspect-ratio:100/74}
.stage .duo{position:absolute;inset:0;opacity:0;transform:translateY(14px) scale(.985);transition:opacity .6s ease,transform .7s cubic-bezier(.2,.7,.2,1);pointer-events:none}
.stage .duo.on{opacity:1;transform:none}
.stage .duo .iphone{transition:transform .8s cubic-bezier(.2,.7,.2,1) .05s}
.stage .duo:not(.on) .iphone{transform:translateY(22px)}

html[dir="rtl"] .ipad{left:auto;right:0}
html[dir="rtl"] .iphone{right:auto;left:0}
html[dir="rtl"] .chip-a{left:auto;right:-4%}
html[dir="rtl"] .chip-b{right:auto;left:22%}

@media (max-width:980px){
  .tour-card{grid-template-columns:1fr;padding:40px 22px;gap:28px}
  .scenes{flex-direction:row;overflow-x:auto;gap:8px;scrollbar-width:none;margin-inline:-4px;padding:2px 4px 6px}
  .scenes::-webkit-scrollbar{display:none}
  .scene{flex:none;padding:10px 14px;align-items:center;border-radius:999px}
  .scene .txt span,.scene .bar{display:none}
  .scene strong{font-size:15px;white-space:nowrap}
  .scene .num{width:24px;height:24px;font-size:12px}
}
@media (max-width:860px){
  .hero .wrap{grid-template-columns:1fr}
  .hero-devices{padding:2% 3% 8%}
  .chip{font-size:12px;padding:8px 11px}
  .chip-a{left:0}
  html[dir="rtl"] .chip-a{right:0}
}
@media (prefers-reduced-motion:reduce){
  .hero-devices .duo,.hero-devices .iphone,.chip{animation:none}
  .scene.on .bar{animation:none}
  .stage .duo,.stage .duo .iphone{transition:none}
}
.tour-card>*{min-width:0}
@media (max-width:980px){.tour-card .tooth{display:none}}


/* SDLE additions: the exam's five sections and the footer's independence line */
.blueprint{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px;max-width:30em}
.blueprint li{display:grid;grid-template-columns:1fr auto;gap:4px 12px;align-items:baseline;font-size:15px;font-weight:600;color:var(--ink)}
.blueprint .w{color:var(--blue);font-variant-numeric:tabular-nums}
.blueprint .bar{grid-column:1/-1;height:8px;border-radius:999px;background:var(--tint);overflow:hidden}
.blueprint .bar i{display:block;height:100%;width:calc(var(--w) * 2.5);border-radius:inherit;background:var(--blue)}
.blueprint li:nth-child(2) .bar i{background:var(--rose)}
.blueprint li:nth-child(3) .bar i{background:var(--slate)}
.blueprint li:nth-child(4) .bar i{background:#C9A43A}
.blueprint li:nth-child(5) .bar i{background:#6FA9D2}
.problem .bp-note{font-size:15px;margin-top:14px}
.indep{flex-basis:100%;margin:0;font-size:13px;line-height:1.6;color:var(--ink-2)}
/* Phones: the hero's words fill the width, so its teeth keep to the corner above them */
@media (max-width:860px){
  .hero .tooth:nth-child(1){left:auto!important;right:5%;top:14px!important;width:22px!important}
  .hero .tooth:nth-child(2){display:none}
  .cta .tooth:nth-child(1){top:16px!important}
}