/* ============================================================
   MAVI Foundation demo courses: one responsive slide per page.
   Pair with theme.css (tokens), fonts.css, mavi.css and demo.js.
   Steps: [data-step="n"] elements appear one by one (only once
   demo.js has added .js to <html>, so crawlers and no-JS readers
   see everything). The slide also gets cumulative .at-1 … .at-N.
   ============================================================ */

html{scroll-behavior:smooth}
body{min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}
a{color:var(--brand-deep)}
.wrap{width:min(1240px,100% - 40px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--sun);outline-offset:2px;border-radius:6px}

/* ---------- top bar ---------- */
.d-top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.d-top .wrap{display:flex;align-items:center;gap:16px;height:72px}
.d-top .logo img{height:34px;width:auto}
.d-top nav{margin-left:auto;display:flex;align-items:center;gap:10px}
.d-top nav a{white-space:nowrap;font-family:var(--display);font-weight:700;font-size:15.5px;text-decoration:none;color:var(--ink-soft);padding:6px 12px;border-radius:var(--r-pill)}
.d-top nav a:hover{background:var(--surface);color:var(--ink)}
.d-top nav a.btn-cta,.d-top nav a.btn-cta:hover{color:#fff;background:var(--cta)}
@media (max-width:720px){.d-top nav .hide-sm{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--display);font-weight:700;font-size:17px;line-height:1;text-decoration:none;padding:14px 24px;border-radius:var(--r-pill);border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:19px;height:19px;flex:none}
.btn-cta{background:var(--cta);color:#fff;box-shadow:var(--shadow-cta)}
.btn-cta:hover{background:var(--cta-deep)}
.btn-wa{background:#25d366;color:#fff;box-shadow:0 14px 30px rgba(37,211,102,.3)}
.btn-wa:hover{background:#1ebe5a}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--brand)}
.btn-sm{font-size:15.5px;padding:11px 18px}
.d-top .btn{padding:11px 20px;font-size:16px}

/* ---------- breadcrumb ---------- */
.d-crumbs{margin:28px 0 18px;font-size:14.5px;color:var(--muted)}
.d-crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px 8px}
.d-crumbs li+li::before{content:"›";margin-right:8px;color:var(--line-2)}
.d-crumbs a{color:var(--ink-soft);text-decoration:none}
.d-crumbs a:hover{color:var(--brand-deep);text-decoration:underline}
.d-crumbs [aria-current]{color:var(--ink)}

/* ---------- the slide ---------- */
.d-slide{--c:var(--brand);position:relative;overflow:hidden;background:var(--slide-bg,var(--bg-blue));border-radius:28px;box-shadow:var(--shadow-lg);padding:clamp(30px,5.4vw,76px) clamp(22px,5.6vw,76px) clamp(170px,14vw,186px);min-height:min(820px,calc(100vh - 140px))}
.d-slide::before{content:"";position:absolute;inset:0 0 auto;height:7px;background:linear-gradient(90deg,var(--brand),var(--mint),var(--sun),var(--cta))}
.d-slide .blob{position:absolute;border-radius:50%;filter:blur(2px);opacity:.5;pointer-events:none;z-index:0}
.d-slide .blob.b1{width:340px;height:340px;right:-120px;top:-120px;background:radial-gradient(circle,color-mix(in srgb,var(--c) 22%,transparent),transparent 70%)}
.d-slide .blob.b2{width:300px;height:300px;left:-140px;bottom:-140px;background:radial-gradient(circle,color-mix(in srgb,var(--sun) 25%,transparent),transparent 70%)}
.d-slide > *{position:relative;z-index:1}
.d-kick{display:inline-block;line-height:1.45;font-family:var(--body);font-weight:800;font-size:13.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--c);background:var(--surface);border:2px solid color-mix(in srgb,var(--c) 28%,transparent);padding:6px 16px;border-radius:var(--r-pill);box-shadow:var(--shadow-sm)}
.d-kick b{color:var(--ink-soft)}
.d-slide h1{font-family:var(--display);font-weight:800;font-size:clamp(34px,4.8vw,58px);line-height:1.08;margin:22px 0 16px;letter-spacing:-.01em;text-wrap:balance}
.d-slide h1 em{font-style:normal;color:var(--c)}
.d-lead{font-size:clamp(17px,1.75vw,21px);line-height:1.6;color:var(--ink-soft);max-width:68ch}
.d-lead b{color:var(--ink)}
.d-body{margin-top:clamp(30px,4vw,52px)}
.d-slide h2{font-family:var(--display);font-weight:800;font-size:clamp(21px,2.3vw,26px);line-height:1.2}
.d-slide h3{font-family:var(--display);font-weight:800;font-size:20px;line-height:1.25}

/* Mavi + speech bubble (bottom of the slide) */
.d-mavi{position:absolute;left:clamp(14px,2.4vw,30px);right:clamp(16px,3vw,48px);bottom:16px;display:flex;align-items:flex-end;gap:8px;pointer-events:none;z-index:3}
.d-mavi mavi-mascot{width:clamp(96px,8.5vw,116px);flex:none}
.d-say{position:relative;max-width:min(720px,100%);background:var(--surface);border:2.5px solid var(--brand);border-radius:22px 22px 22px 6px;padding:13px 22px;font-family:var(--display);font-weight:600;font-size:clamp(16px,1.6vw,20px);line-height:1.35;color:var(--ink);box-shadow:var(--shadow);margin-bottom:54px;transition:opacity .25s}
.d-say::after{content:"";position:absolute;left:-12px;bottom:10px;width:18px;height:18px;background:var(--surface);border-left:2.5px solid var(--brand);border-bottom:2.5px solid var(--brand);transform:skewY(30deg) rotate(10deg);border-radius:0 0 0 4px}
.d-say.swap{opacity:.2}
.d-say b{color:var(--cta)}

/* ---------- step reveals (only with JS) ---------- */
.js .d-slide [data-step]{transition:opacity .45s ease,transform .5s cubic-bezier(.3,1.4,.5,1)}
.js .d-slide [data-step]:not(.is-shown){opacity:0;transform:translateY(14px) scale(.97);pointer-events:none}
.js .d-slide [data-step].is-shown{opacity:1}
.d-slide i[hidden][data-step]{display:none}

/* entrance animations (play on load; inside a hidden step they wait for it) */
.a-up{--anim:a-up} .a-left{--anim:a-left} .a-right{--anim:a-right} .a-pop{--anim:a-pop;--ease:cubic-bezier(.3,1.7,.5,1)} .a-fade{--anim:a-fade;--ease:ease}
.js :is(.a-up,.a-left,.a-right,.a-pop,.a-fade){opacity:0}
.js .slide.is-active :is(.a-up,.a-left,.a-right,.a-pop,.a-fade):not([data-step]:not(.is-shown)):not([data-step]:not(.is-shown) *){animation:var(--anim) .75s var(--ease,cubic-bezier(.2,.9,.3,1.15)) var(--d,0s) both}
@keyframes a-up{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}
@keyframes a-left{from{opacity:0;transform:translateX(-50px)}to{opacity:1;transform:none}}
@keyframes a-right{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:none}}
@keyframes a-pop{0%{opacity:0;transform:scale(.3)}100%{opacity:1;transform:scale(1)}}
@keyframes a-fade{from{opacity:0}to{opacity:1}}
.loop-float{animation:loop-float 3.2s ease-in-out var(--d,0s) infinite}
.loop-pulse{animation:loop-pulse 1.8s ease-in-out var(--d,0s) infinite}
@keyframes loop-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes loop-pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.07)}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* ---------- controls under the slide ---------- */
.d-ctrl{display:flex;align-items:center;gap:14px;margin:26px 0 10px;flex-wrap:wrap}
.d-ctrl .grow{flex:1}
.d-pages{display:flex;gap:8px;list-style:none;align-items:center}
.d-pages a{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;font-family:var(--display);font-weight:800;font-size:15px;text-decoration:none;color:var(--ink-soft);background:var(--surface);border:2px solid var(--line)}
.d-pages a:hover{border-color:var(--brand)}
.d-pages a[aria-current]{background:var(--brand);border-color:var(--brand);color:#fff}
.d-pages a.enrol{width:auto;padding:0 12px;border-radius:var(--r-pill);font-size:13.5px}
.d-stepbar{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);font-weight:800}
.d-stepbar .bar{width:110px;height:6px;border-radius:6px;background:var(--line);overflow:hidden}
.d-stepbar .bar i{display:block;height:100%;width:var(--p,0%);background:linear-gradient(90deg,var(--brand),var(--mint));transition:width .4s}
.d-ctrl button.btn{font-size:15.5px;padding:11px 18px}
.d-hint{font-size:13.5px;color:var(--muted);font-weight:700;margin-top:4px}
.d-hint kbd{font-family:var(--body);font-size:12px;font-weight:800;border:1.5px solid var(--line-2);border-bottom-width:3px;border-radius:6px;padding:0 6px;background:var(--surface)}
@media (max-width:720px){.d-hint{display:none}.d-stepbar .bar{width:70px}}

/* ---------- text below the slide (SEO + context) ---------- */
.d-more{display:grid;grid-template-columns:1.45fr 1fr;gap:28px;margin:60px 0 72px}
.d-more section,.d-more aside{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(24px,3vw,38px) clamp(22px,3vw,40px);box-shadow:var(--shadow-sm)}
.d-more h2{font-family:var(--display);font-weight:800;font-size:clamp(22px,2.2vw,27px);line-height:1.2;margin-bottom:10px}
.d-more p{color:var(--ink-soft);margin-top:10px;line-height:1.75;font-size:16.5px}
.d-more ul{margin:14px 0 0 0;list-style:none}
.d-more li{position:relative;padding:6px 0 6px 28px;color:var(--ink-soft);line-height:1.5}
.d-more li::before{content:"";position:absolute;left:4px;top:14px;width:11px;height:11px;border-radius:50%;background:var(--mint)}
.d-more aside{background:linear-gradient(150deg,color-mix(in srgb,var(--cta) 12%,var(--surface)),var(--surface) 70%);border-color:color-mix(in srgb,var(--cta) 30%,var(--line))}
.d-more aside .btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.d-lessons{counter-reset:l}
.d-lessons li{counter-increment:l;padding-left:38px}
.d-lessons li::before{content:counter(l);width:24px;height:24px;top:7px;left:0;display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:13px;color:#fff;background:var(--brand)}
.d-lessons li.on a{color:var(--ink);font-weight:800;text-decoration:none}
@media (max-width:860px){.d-more{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.d-foot{margin-top:auto;padding:48px 0 44px;border-top:1px solid var(--line);background:var(--surface-2);font-size:15px;line-height:1.6;color:var(--ink-soft)}
.d-foot .wrap{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px}
.d-foot h2{font-family:var(--display);font-size:18px;font-weight:800;color:var(--ink);margin-bottom:10px}
.d-foot ul{list-style:none}
.d-foot li{padding:3px 0}
.d-foot a{color:var(--ink-soft)}
.d-foot a:hover{color:var(--brand-deep)}
.d-foot .copy{grid-column:1/-1;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}
@media (max-width:760px){.d-foot .wrap{grid-template-columns:1fr}}

/* ============================================================
   Slide content building blocks
   ============================================================ */
.cols{display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4.4vw,60px);align-items:start}
.cols.l{grid-template-columns:1.25fr 1fr}
.cols.r{grid-template-columns:1fr 1.25fr}
.cols > *{min-width:0}
@media (max-width:820px){.cols,.cols.l,.cols.r{grid-template-columns:1fr}}

/* feature tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px}
.tile{--c:var(--brand);background:var(--surface);border:2px solid color-mix(in srgb,var(--c) 22%,transparent);border-radius:20px;padding:20px 22px;box-shadow:var(--shadow-sm)}
.tile .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--c);color:#fff;margin-bottom:12px;font-family:var(--display);font-weight:800;font-size:20px}
.tile .ico svg{width:24px;height:24px}
.tile b{display:block;font-family:var(--display);font-size:19px;line-height:1.2}
.tile span{display:block;font-size:15px;color:var(--ink-soft);margin-top:5px;line-height:1.45}
.t-blue{--c:var(--brand)} .t-mint{--c:var(--mint-deep)} .t-sun{--c:#e3a008} .t-cta{--c:var(--cta)} .t-coral{--c:var(--coral)} .t-violet{--c:var(--violet)} .t-xl{--c:#107c41}

/* numbered steps */
.steps{list-style:none;display:grid;gap:14px}
.steps li{display:flex;gap:16px;align-items:center;background:var(--surface);border:2px solid var(--line);border-radius:18px;padding:14px 20px 14px 16px;font-family:var(--display);font-weight:600;font-size:clamp(16.5px,1.5vw,19px);line-height:1.38;box-shadow:var(--shadow-sm)}
.steps li > i{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-family:var(--display);font-weight:800;font-size:16px;color:#fff;background:var(--c,var(--brand))}
.steps li b{color:var(--ink);font-weight:800}
.steps li.ok{border-color:color-mix(in srgb,var(--mint) 55%,transparent);background:color-mix(in srgb,var(--mint) 8%,var(--surface))}
.steps li.ok > i{background:var(--mint-deep)}
.steps code,.d-slide code{font-family:ui-monospace,Consolas,Menlo,monospace;font-size:.92em;font-weight:700;background:color-mix(in srgb,var(--brand) 9%,var(--surface));color:var(--brand-deep);padding:1px 6px;border-radius:6px}

/* level roadmap */
.road{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:r}
.road li{--c:var(--brand);position:relative;background:var(--surface);border:2px solid var(--line);border-top:6px solid var(--c);border-radius:20px;padding:20px 20px 18px;box-shadow:var(--shadow-sm)}
.road li b{display:block;font-family:var(--display);font-size:20px}
.road li span{display:block;font-size:15px;color:var(--ink-soft);line-height:1.5;margin-top:6px}
.road li small{display:inline-block;margin-top:12px;font-weight:800;font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--c)}
@media (max-width:820px){.road{grid-template-columns:1fr 1fr}}

/* big maths sum */
.sum{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.25em;font-family:var(--display);font-weight:800;font-size:clamp(40px,6vw,74px);line-height:1;color:var(--ink)}
.sum .op{color:var(--muted)}
.sum .ans{color:var(--cta)}
.sum .q{color:var(--brand)}
.digits{display:inline-flex;gap:.08em}
.digits span{display:inline-grid;place-items:center;min-width:.9em;padding:.08em .14em;border-radius:.18em;background:color-mix(in srgb,var(--c,var(--brand)) 10%,transparent)}
.digits span.mid{background:var(--sun);color:var(--ink)}
.digits span.l{background:color-mix(in srgb,var(--brand) 18%,transparent)}
.digits span.r{background:color-mix(in srgb,var(--mint) 25%,transparent)}
.split{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap;margin-top:24px}
.split .part{text-align:center;background:var(--surface);border:2px solid var(--line);border-radius:20px;padding:14px 24px;min-width:150px;box-shadow:var(--shadow-sm)}
.split .part small{display:block;font-weight:800;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.split .part b{font-family:var(--display);font-size:clamp(28px,3.4vw,40px);line-height:1.1}
.split .part.l b{color:var(--brand-deep)} .split .part.r b{color:var(--mint-deep)}
.split .bar{font-family:var(--display);font-size:40px;font-weight:800;color:var(--line-2)}
.card{background:var(--surface);border:2px solid var(--line);border-radius:24px;padding:clamp(22px,2.8vw,36px);box-shadow:var(--shadow-sm)}
.card.tint{background:var(--surface);border-color:color-mix(in srgb,var(--c,var(--brand)) 26%,transparent)}
.answer{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:clamp(22px,2.6vw,30px);color:#fff;background:linear-gradient(135deg,var(--mint),var(--brand));padding:8px 22px;border-radius:var(--r-pill);box-shadow:var(--shadow-brand)}
.center{text-align:center}

/* Sanskrit word cards */
.words{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.word{background:var(--surface);border:2px solid var(--line);border-radius:20px;padding:14px 22px;text-align:center;box-shadow:var(--shadow-sm)}
.word .dv{display:block;font-family:var(--display);font-weight:800;font-size:clamp(30px,3.6vw,42px);line-height:1.1;color:var(--cta)}
.word b{font-family:var(--display);font-size:18px}
.word span{display:block;color:var(--muted);font-size:14px;font-weight:800}
.word-op{font-family:var(--display);font-weight:800;font-size:32px;color:var(--muted)}

/* sutra list */
.sutras{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px}
.sutras li{display:flex;gap:10px;align-items:center;background:var(--surface);border:2px solid var(--line);border-radius:14px;padding:7px 12px;font-size:14.5px;line-height:1.25}
.sutras li i{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-style:normal;font-family:var(--display);font-weight:800;font-size:13px;color:#fff;background:var(--violet)}
.sutras li b{display:block;font-family:var(--display);font-size:15.5px}
.sutras li span{color:var(--muted);font-weight:700}
@media (max-width:560px){.sutras{grid-template-columns:1fr}}

/* timeline */
.tline{list-style:none;display:grid;gap:18px;border-left:3px dashed var(--line-2);margin-left:10px;padding-left:24px}
.tline li{position:relative}
.tline li::before{content:"";position:absolute;left:-33px;top:6px;width:15px;height:15px;border-radius:50%;background:var(--cta);border:3px solid var(--surface);box-shadow:0 0 0 2px var(--cta)}
.tline b{font-family:var(--display);font-size:18.5px;color:var(--cta-deep)}
.tline span{display:block;font-size:16px;color:var(--ink-soft);line-height:1.5;margin-top:2px}

/* quick check (interactive) */
.check{display:grid;gap:16px}
.qq{background:var(--surface);border:2px solid var(--line);border-radius:20px;padding:18px 22px 20px;box-shadow:var(--shadow-sm)}
.qq p{font-family:var(--display);font-weight:800;font-size:20px;line-height:1.3}
.qq .opts{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.qq .opts button{font-family:var(--display);font-weight:700;font-size:17px;padding:9px 20px;border-radius:var(--r-pill);border:2px solid var(--line-2);background:var(--bg);cursor:pointer;transition:transform .15s,background .15s,border-color .15s}
.qq .opts button:hover{border-color:var(--brand);transform:translateY(-1px)}
.qq .opts button.right{background:var(--mint);border-color:var(--mint);color:#fff}
.qq .opts button.wrong{background:color-mix(in srgb,var(--coral) 18%,var(--surface));border-color:var(--coral);animation:shake .4s}
.qq .why{display:none;margin-top:10px;font-size:15.5px;color:var(--ink-soft)}
.qq.done .why{display:block}
.qq.done .why b{color:var(--mint-deep)}
@keyframes shake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}

/* scale wide mock-ups (Excel sheets) to the available width */
.fit{width:100%;overflow:hidden}
.fit > *{transform-origin:top left}

/* compare table */
.ctab{width:100%;border-collapse:separate;border-spacing:0;background:var(--surface);border:2px solid var(--line);border-radius:20px;overflow:hidden;font-size:15.5px;box-shadow:var(--shadow-sm)}
.ctab th,.ctab td{padding:12px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.45}
.ctab th{font-family:var(--display);font-size:15.5px;background:color-mix(in srgb,var(--brand) 8%,var(--surface))}
.ctab tr:last-child td{border-bottom:0}
.ctab code{white-space:nowrap}

/* ---------- contact slide ---------- */
.contact{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(26px,4vw,52px);align-items:start}
.contact > *{min-width:0}
@media (max-width:860px){.contact{grid-template-columns:1fr}}
.c-list{list-style:none;display:grid;gap:14px}
.c-list li{display:flex;gap:16px;align-items:flex-start;background:var(--surface);border:2px solid var(--line);border-radius:20px;padding:16px 20px;box-shadow:var(--shadow-sm)}
.c-list .ico{flex:none;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--c,var(--brand));color:#fff}
.c-list .ico svg{width:22px;height:22px}
.c-list small{display:block;font-weight:800;font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.c-list b,.c-list a{font-family:var(--display);font-weight:700;font-size:17.5px;line-height:1.3;color:var(--ink);text-decoration:none}
.c-list a:hover{color:var(--brand-deep);text-decoration:underline}
.c-list address{font-style:normal;font-size:16px;line-height:1.55;color:var(--ink);margin-top:2px}
.c-list .sub{display:block;font-size:14.5px;color:var(--ink-soft);margin-top:4px}
.c-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.c-social{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.c-social a{display:inline-flex;align-items:center;gap:6px;font-weight:800;font-size:14px;text-decoration:none;color:var(--ink-soft);background:var(--surface);border:2px solid var(--line);border-radius:var(--r-pill);padding:6px 12px}
.c-social a:hover{border-color:var(--brand);color:var(--ink)}
.c-social svg{width:16px;height:16px}
.incl{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.incl div{text-align:center;background:color-mix(in srgb,var(--c,var(--brand)) 8%,var(--surface));border:2px solid color-mix(in srgb,var(--c,var(--brand)) 20%,transparent);border-radius:18px;padding:14px 8px}
.incl b{display:block;font-family:var(--display);font-weight:800;font-size:30px;line-height:1;color:var(--c,var(--brand-deep))}
.incl span{font-size:13px;font-weight:800;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}

/* ---------- Excel bits ---------- */
.fx-line{display:flex;align-items:center;gap:12px;font-family:ui-monospace,Consolas,Menlo,monospace;font-size:clamp(17px,2vw,22px);font-weight:700;background:var(--surface);border:2px solid var(--line);border-radius:18px;padding:14px 22px;overflow-x:auto;box-shadow:var(--shadow-sm)}
.fx-line i{font-style:italic;font-family:Georgia,serif;color:var(--muted);font-weight:700}
.fx-line .fn{color:#107c41}
.fx-line .a1{color:#0b62c4} .fx-line .a2{color:#b4009e} .fx-line .a3{color:#c55a11}
.args{list-style:none;display:grid;gap:12px;margin-top:14px}
.args li{display:flex;gap:12px;align-items:baseline;font-size:16.5px;line-height:1.45;color:var(--ink-soft)}
.args li code{flex:none}
.args .a1 code{color:#0b62c4;background:#e8f1fc} .args .a2 code{color:#b4009e;background:#fbe9f8} .args .a3 code{color:#c55a11;background:#fdf0e7}

/* ---------- prompt engineering bits ---------- */
.d-slide .chat{max-width:100%}
.ptag{display:inline-block;font-weight:800;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:#fff;padding:2px 10px;border-radius:var(--r-pill);background:var(--coral);vertical-align:middle}
.ptag.good{background:var(--mint-deep)}
.blocks7{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:14px}
.blocks7 li{--c:var(--brand);background:var(--surface);border:2px solid var(--line);border-top:6px solid var(--c);border-radius:18px;padding:16px 12px 14px;text-align:center;box-shadow:var(--shadow-sm)}
.blocks7 li i{display:grid;place-items:center;width:30px;height:30px;margin:0 auto 8px;border-radius:50%;font-style:normal;font-family:var(--display);font-weight:800;font-size:14px;color:#fff;background:var(--c)}
.blocks7 b{display:block;font-family:var(--display);font-size:16.5px;line-height:1.2}
.blocks7 span{display:block;font-size:13px;color:var(--muted);font-weight:700;line-height:1.35;margin-top:5px}
.pbuild{font-family:ui-monospace,Consolas,Menlo,monospace;font-size:16px;line-height:1.95;background:#f4f4f6;border:1px solid #dcdce3;border-radius:20px;padding:22px 26px;color:#1f1f27;box-shadow:0 10px 30px rgba(29,39,66,.1)}
.pbuild .k{display:inline}
.struct{font-family:ui-monospace,Consolas,Menlo,monospace;font-weight:700;font-size:16px;background:var(--surface);border:2px dashed var(--line-2);border-radius:14px;padding:12px 16px;margin-top:14px}
.struct .slot{color:var(--muted);font-weight:600}

/* Nikhilam layout: two numbers with their differences, then left | right parts */
.nik{display:inline-grid;grid-template-columns:auto auto;gap:6px 22px;align-items:center;font-family:var(--display);font-weight:800;font-size:clamp(40px,5.4vw,66px);line-height:1.05}
.nik .dev{color:var(--coral);font-size:.8em}
.nik .line{grid-column:1/-1;height:4px;border-radius:4px;background:var(--ink)}
.nik .lp{color:var(--brand-deep)} .nik .rp{color:var(--mint-deep)}

/* ============================================================
   Catalogue page (/demo-courses)
   ============================================================ */
.btns{display:flex;flex-wrap:wrap;gap:12px}
.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center;background:var(--bg-blue);border-radius:28px;box-shadow:var(--shadow-lg);padding:clamp(32px,5.4vw,80px) clamp(24px,5.6vw,80px);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0 0 auto;height:7px;background:linear-gradient(90deg,var(--brand),var(--mint),var(--sun),var(--cta))}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(38px,5.6vw,66px);line-height:1.05;margin:22px 0 18px}
.hero h1 em{font-style:normal;color:var(--cta)}
.hero .d-kick{--c:var(--brand)}
.hero .btns{margin-top:32px}
.hero-mavi{display:flex;flex-direction:column;align-items:center;gap:6px}
.hero-mavi mavi-mascot{width:clamp(130px,16vw,200px)}
.hero-mavi .d-say{margin:0;border-radius:20px 20px 20px 6px}
.hero-mavi .d-say::after{display:none}
@media (max-width:760px){.hero{grid-template-columns:1fr}.hero-mavi{flex-direction:row}.hero-mavi mavi-mascot{width:110px}}
.dcs{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px;scroll-margin-top:90px}
@media (max-width:1000px){.dcs{grid-template-columns:1fr}}
.dc{--c:var(--brand);display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}
.dc:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.dc-art{height:170px;display:grid;place-items:center;background:linear-gradient(135deg,color-mix(in srgb,var(--c) 16%,var(--surface)),color-mix(in srgb,var(--c) 4%,var(--surface)));border-bottom:4px solid var(--c)}
.dc-body{display:flex;flex-direction:column;gap:10px;padding:28px 30px 30px;flex:1}
.dc-tag{font-weight:800;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--c)}
.dc h2{font-family:var(--display);font-weight:800;font-size:25px;line-height:1.2}
.dc h2 a{color:var(--ink);text-decoration:none}
.dc h2 a:hover{color:var(--c)}
.dc-body > p{color:var(--ink-soft);font-size:15.5px;line-height:1.6}
.dc .d-lessons{list-style:none;margin:10px 0 8px}
.dc .d-lessons li{position:relative;padding:5px 0 5px 36px;font-size:15.5px;line-height:1.45}
.dc .d-lessons li::before{position:absolute;background:var(--c)}
.dc .d-lessons a{color:var(--ink-soft);text-decoration:none}
.dc .d-lessons a:hover{color:var(--ink);text-decoration:underline}
.dc-stats{font-size:13.5px;color:var(--muted)}
.dc-stats span{margin-right:8px}
.dc-stats b{color:var(--ink)}
.dc .btns{margin-top:auto;padding-top:16px}
.sumart{display:flex;gap:12px;align-items:center;font-family:var(--display);font-weight:800;font-size:46px;color:var(--ink)}
.sumart b{color:var(--muted)} .sumart .ans{color:var(--cta);background:var(--surface);padding:0 16px;border-radius:16px;box-shadow:var(--shadow-sm)}
.gridart{display:grid;grid-template-columns:repeat(4,64px);border:1px solid #c8c8c8;background:#fff;box-shadow:var(--shadow-sm);font-family:"Segoe UI",system-ui,sans-serif;font-size:15px;transform:rotate(-3deg)}
.gridart i{font-style:normal;border:1px solid #e1e1e1;padding:5px 8px;text-align:right;color:#222}
.gridart i:nth-child(-n+4){background:#f3f3f3;text-align:center;color:#555;font-weight:600}
.gridart i.f{background:#e6f4ea;color:#107c41;font-weight:700;outline:2px solid #107c41;outline-offset:-2px}
.chatart{display:flex;flex-direction:column;gap:8px;width:250px;font-family:"Segoe UI",system-ui,sans-serif;font-size:14.5px}
.chatart span{padding:7px 12px;border-radius:14px;box-shadow:var(--shadow-sm)}
.chatart .u{align-self:flex-end;background:#e6f2ff;border:1px solid #c9e2ff;border-radius:14px 14px 4px 14px}
.chatart .a{align-self:flex-start;background:#fff;border:1px solid #e4e4ea;border-radius:14px 14px 14px 4px}
.how{margin-top:72px}
.how h2{font-family:var(--display);font-weight:800;font-size:clamp(26px,3vw,34px);margin-bottom:20px}
.how ol{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:h}
.how li{counter-increment:h;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px 26px 24px 78px;box-shadow:var(--shadow-sm)}
.how li::before{content:counter(h);position:absolute;left:24px;top:24px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-family:var(--display);font-weight:800;color:#fff;background:var(--cta)}
.how b{display:block;font-family:var(--display);font-size:19px}
.how span{color:var(--ink-soft);font-size:15.5px;line-height:1.55;display:block;margin-top:4px}
@media (max-width:820px){.how ol{grid-template-columns:1fr}}
.faq details{border-top:1px solid var(--line);padding:16px 0}
.faq details:first-of-type{border-top:0}
.faq summary{cursor:pointer;font-family:var(--display);font-weight:700;font-size:18.5px;color:var(--ink)}
.faq details p{margin-top:8px}
.no-anim *,.no-anim *::before,.no-anim *::after{animation-delay:0s!important;animation-duration:0s!important;transition:none!important}
ol.d-lessons{list-style:none}
@media (max-width:560px){.d-ctrl .d-stepbar{display:none}}

/* slide backgrounds, as in the full courses: <article data-bg="blue|peach|mint|violet|cream"> */
.d-slide[data-bg="blue"]{--slide-bg:var(--bg-blue)} .d-slide[data-bg="peach"]{--slide-bg:var(--bg-peach)}
.d-slide[data-bg="mint"]{--slide-bg:var(--bg-mint)} .d-slide[data-bg="violet"]{--slide-bg:var(--bg-violet)}
.d-slide[data-bg="cream"]{--slide-bg:var(--surface-2)}
/* floating symbols in the background */
.floaters{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0!important}
.floaters span{position:absolute;font-family:var(--display);font-weight:800;color:var(--c);opacity:.12;animation:float-drift var(--t,14s) ease-in-out var(--fd,0s) infinite alternate}
@keyframes float-drift{from{transform:translate(0,0) rotate(-10deg)}to{transform:translate(var(--fx,20px),var(--fy,-40px)) rotate(12deg)}}
@media (max-width:640px){
  .d-slide{border-radius:24px;padding-bottom:190px;min-height:0}
  .d-kick{letter-spacing:.05em;font-size:12.5px}
  .d-top .logo img{height:28px}
  .d-top nav{gap:4px}
  .d-top nav a{padding:6px 8px}
  .d-say{font-size:16px;padding:11px 16px}
  .steps li{padding:12px 16px 12px 12px}
  .floaters span:nth-child(n+5){display:none}
}