@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap');

:root {
    color-scheme: light;
    --ink: #15241d;
    --muted: #5f6f67;
    --brand: #12664c;
    --brand-dark: #0a4d38;
    --brand-bright: #17c084;
    --brand-soft: #dcebe4;
    --mint: #eff7f3;
    --cream: #fbfaf5;
    --line: #d5dfda;
    --white: #fff;
    --orange: #c87832;
    --gold: #FFE49A;
    --outline-green: #0C684C;
    --rust: #B5651D;
    --surface-dark: #0b1e16;
    --on-dark: #f4faf7;
    --on-dark-muted: #9dc2ac;
    --thread-given: var(--brand-dark);
    --thread-coral: #e2685a;
    --thread-teal: #1fa6ac;
    --thread-forest: #3aa855;
    --thread-honey: #e3a52a;
    --thread-plum: #9a7bdb;
    font-family: 'DM Sans', system-ui, sans-serif;
    font-synthesis: none;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--cream);line-height:1.55}
h1,h2,h3,.brand{font-family:'Manrope',system-ui,sans-serif}
a{color:inherit}
h1[tabindex="-1"]:focus{outline:none}

.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Floating nav (no top bar) */
.floating-nav{position:fixed;top:18px;left:18px;z-index:60}
.floating-nav-toggle{width:52px;height:52px;padding:0;border:0;border-radius:50%;background:var(--surface-dark);display:grid;place-items:center;cursor:pointer;box-shadow:0 12px 28px -10px rgba(0,0,0,.4);transition:transform .2s ease,background .2s ease}
.floating-nav-toggle:hover{transform:scale(1.06)}
.floating-nav-toggle img{border-radius:50%;display:block}
.floating-nav-toggle.is-open{background:var(--brand-bright)}
.nav-overlay{position:fixed;inset:0;z-index:55;background:var(--surface-dark);display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity .4s ease}
.nav-overlay.is-open{opacity:1;pointer-events:auto}
.nav-overlay nav{display:flex;flex-direction:column;gap:10px;text-align:center}
.nav-overlay a{font-family:'Manrope';font-size:clamp(1.9rem,7vw,3.2rem);font-weight:800;color:var(--on-dark-muted);text-decoration:none;letter-spacing:-.03em;opacity:0;transform:translateY(18px);transition:opacity .35s ease,transform .35s ease,color .2s ease}
.nav-overlay.is-open a{opacity:1;transform:none}
.nav-overlay a:hover,.nav-overlay a.active{color:var(--brand-bright)}
.nav-overlay a:nth-child(1){transition-delay:.06s}
.nav-overlay a:nth-child(2){transition-delay:.11s}
.nav-overlay a:nth-child(3){transition-delay:.16s}
.nav-overlay a:nth-child(4){transition-delay:.21s}
.nav-overlay a:nth-child(5){transition-delay:.26s}
.nav-overlay a:nth-child(6){transition-delay:.31s}

/* Buttons / actions */
.button{min-height:50px;padding:13px 22px;border:1px solid var(--brand);border-radius:8px;background:var(--brand);color:#fff;text-decoration:none;font-weight:750;display:inline-flex;align-items:center;justify-content:center;transition:background .2s ease,border-color .2s ease,transform .2s ease}
.button:hover{background:var(--brand-dark);border-color:var(--brand-dark);transform:translateY(-2px)}
.button.secondary{background:transparent;color:var(--brand);border-color:#98b3a7}
.button.light{background:#fff;color:var(--brand-dark);border-color:#fff}
.button.disabled{background:#dfe6e2;color:#65746c;border-color:#dfe6e2;cursor:not-allowed}
.text-action{font-weight:750;color:var(--brand);text-decoration:none}

.store-badge{display:inline-flex;align-items:center;gap:10px;min-height:46px;padding:6px 16px;border-radius:9px;background:#1c1c1c;color:#fff;cursor:not-allowed;user-select:none}
.store-badge-icon{width:21px;height:21px;fill:#fff;flex:none;opacity:.9}
.store-badge-text{display:flex;flex-direction:column;line-height:1.2;text-align:left}
.store-badge-eyebrow{font-size:.6rem;text-transform:uppercase;letter-spacing:.09em;color:#c9c9c9}
.store-badge-name{font-family:'Manrope';font-weight:700;font-size:1.02rem;color:#fff}
.eyebrow{color:var(--brand);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.16em;margin:0 0 18px}
.lead{font-size:clamp(1.08rem,2vw,1.3rem);line-height:1.6;color:var(--muted);max-width:560px;margin:0 auto}
.actions{display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:22px}

/* ---- Home: one big auto-animating canvas, fit to one screen ---- */
.hero-canvas{height:100svh;display:grid;justify-items:center;align-content:center;gap:clamp(10px,2svh,20px);padding:clamp(16px,4svh,40px) 24px;text-align:center;min-width:0;overflow:hidden}
.hero-canvas>.eyebrow{margin:0}
.canvas-wrap{width:100%;display:grid;justify-items:center;min-width:0}
.canvas-wrap .stitch-stage{width:min(90vw,calc(40svh * 34 / 12),1300px);text-align:left}
.intro-copy{max-width:640px;display:grid;gap:6px;min-width:0}
.intro-copy .eyebrow{margin:0;justify-self:center}
.intro-copy h1{font-size:clamp(1.3rem,3vw,2.1rem);line-height:1.15;letter-spacing:-.03em;margin:0}
.intro-copy .lead{margin:0 auto;font-size:clamp(.92rem,1.5vw,1.05rem)}
.hero-canvas .actions{margin-top:0}

.cell.auto-cell{opacity:0;transform:scale(.55);transition:opacity .4s ease,transform .4s cubic-bezier(.2,.8,.2,1.2)}
.cell.auto-cell.is-revealed{opacity:1;transform:none}

/* Demo engine: glyphs */
.glyph-defs{position:absolute;width:0;height:0;overflow:hidden}
.glyph{width:64%;height:64%}
.glyph-stroke{fill:none;stroke:currentColor;stroke-width:.1;stroke-linecap:round;stroke-linejoin:round}
.glyph-stroke-fill{fill:currentColor;stroke:none}

/* Demo engine: thread palette */
.thread-palette{margin-bottom:10px}
.palette-hint{margin:0 0 8px;color:var(--muted);font-size:.78rem}
.palette-controls{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.palette-search{flex:1 1 180px;min-height:34px;padding:0 12px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.85rem;color:var(--ink)}
.palette-sort{min-height:34px;padding:0 10px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.85rem;color:var(--ink);background:#fff}
.palette-direction{min-height:34px;min-width:34px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:1rem;line-height:1}
.palette-count{margin:0 0 8px;color:var(--muted);font-size:.78rem}
.palette-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.swatch{display:inline-flex;align-items:center;gap:6px;min-height:30px;padding:4px 10px 4px 5px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:600;font-size:.78rem;transition:transform .15s ease}
.swatch:hover{transform:translateY(-1px)}
.swatch-chip{width:14px;height:14px;border-radius:4px;background:var(--thread,var(--muted));flex:none}
.swatch.thread-given{--thread:var(--thread-given)}
.swatch.thread-coral{--thread:var(--thread-coral)}
.swatch.thread-teal{--thread:var(--thread-teal)}
.swatch.thread-forest{--thread:var(--thread-forest)}
.swatch.thread-honey{--thread:var(--thread-honey)}
.swatch.thread-plum{--thread:var(--thread-plum)}
.swatch{border-color:color-mix(in srgb,var(--thread,var(--line)) 45%,var(--line))}
.swatch .swatch-dmc{color:var(--muted);font-weight:500;font-size:.7rem}
.swatch .swatch-count{color:var(--muted);font-weight:500;font-size:.7rem}
.swatch.is-selected{background:var(--gold);border-color:var(--outline-green);color:var(--ink)}
.swatch.is-selected .swatch-chip{box-shadow:0 0 0 2px var(--outline-green)}
.swatch.is-thread-complete{border-color:var(--outline-green)}
.swatch.is-thread-complete .swatch-chip{box-shadow:0 0 0 2px var(--gold)}
.swatch.just-completed{animation:thread-flash .75s cubic-bezier(.25,.8,.3,1)}
.swatch.just-completed .swatch-chip{animation:thread-flash-chip .75s cubic-bezier(.25,.8,.3,1)}
@keyframes thread-flash{
    0%{transform:scale(1);box-shadow:0 0 0 0 color-mix(in srgb,var(--gold) 70%,transparent)}
    28%{transform:scale(1.16);box-shadow:0 0 0 7px color-mix(in srgb,var(--gold) 45%,transparent)}
    60%{transform:scale(.96);box-shadow:0 0 0 2px color-mix(in srgb,var(--gold) 20%,transparent)}
    100%{transform:scale(1);box-shadow:0 0 0 0 transparent}
}
@keyframes thread-flash-chip{
    0%,100%{filter:none}
    30%{filter:brightness(1.7) saturate(1.4)}
}

/* Demo engine: grid stage */
.stitch-stage{width:100%;min-width:0}
.stitch-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:12px}
.stitch-scroll.celebrate{animation:canvas-celebrate 1.1s cubic-bezier(.3,1.4,.35,1)}
@keyframes canvas-celebrate{
    0%{transform:scale(1) translateY(0);filter:brightness(1);box-shadow:0 0 0 0 transparent}
    16%{transform:scale(1.045) translateY(-10px);filter:brightness(1.4);box-shadow:0 0 0 12px color-mix(in srgb,var(--gold) 55%,transparent)}
    38%{transform:scale(.98) translateY(4px);filter:brightness(1.05);box-shadow:0 0 0 4px color-mix(in srgb,var(--gold) 25%,transparent)}
    58%{transform:scale(1.02) translateY(-4px);filter:brightness(1.18)}
    78%{transform:scale(.995) translateY(1px);filter:brightness(1.02)}
    100%{transform:scale(1) translateY(0);filter:brightness(1);box-shadow:0 0 0 0 transparent}
}
.stitch-scroll-hint{display:none;margin:8px 0 0;color:var(--muted);font-size:.8rem}
.stitch-grid{position:relative;display:grid;gap:2px;background:var(--line);border:2px solid var(--line);border-radius:6px;overflow:hidden}
.variant-hero .stitch-grid{grid-template-columns:repeat(34,1fr);aspect-ratio:34/12;min-width:480px}
.variant-showcase .stitch-grid{grid-template-columns:repeat(86,1fr);aspect-ratio:86/10;min-width:760px}
.stitch-grid.at-row-count-5{grid-template-rows:repeat(5,1fr)}
.stitch-grid.at-row-count-10{grid-template-rows:repeat(10,1fr)}
.stitch-grid.at-row-count-12{grid-template-rows:repeat(12,1fr)}
.cell,.cell-empty{aspect-ratio:1;display:grid;place-items:center;padding:0;border:0}
.cell-empty{background:var(--cream)}
.cell{--thread:#8fae9c;background:color-mix(in srgb,var(--thread) 16%,var(--cream));color:var(--thread);cursor:pointer}
.cell.thread-given{--thread:var(--thread-given)}
.cell.thread-coral{--thread:var(--thread-coral)}
.cell.thread-teal{--thread:var(--thread-teal)}
.cell.thread-forest{--thread:var(--thread-forest)}
.cell.thread-honey{--thread:var(--thread-honey)}
.cell.thread-plum{--thread:var(--thread-plum)}
.cell .glyph{color:inherit}
.cell.is-complete{background:var(--thread)}
.cell.is-complete .glyph{color:#fff}
.cell.is-selected{background:var(--gold);box-shadow:inset 0 0 0 2px var(--outline-green)}
.cell.is-selected .glyph{color:var(--outline-green)}
.cell.is-dimmed{opacity:.3}
.cell.just-marked{animation:snap-pop .18s ease}
button.cell:focus-visible{outline:2px solid var(--brand-dark);outline-offset:-2px;z-index:2}
@keyframes snap-pop{0%{transform:scale(.65)}60%{transform:scale(1.15)}100%{transform:scale(1)}}
.row-band{pointer-events:none;background:var(--rust);opacity:.2}
.row-band.at-row-1{grid-row:1}.row-band.at-row-2{grid-row:2}.row-band.at-row-3{grid-row:3}.row-band.at-row-4{grid-row:4}
.row-band.at-row-5{grid-row:5}.row-band.at-row-6{grid-row:6}.row-band.at-row-7{grid-row:7}.row-band.at-row-8{grid-row:8}
.row-band.at-row-9{grid-row:9}.row-band.at-row-10{grid-row:10}.row-band.at-row-11{grid-row:11}.row-band.at-row-12{grid-row:12}
.row-band{grid-column:1/-1}
.stitch-progress{margin:8px 0 0;font-weight:650;color:var(--ink);font-size:.92rem}

/* Demo engine: minimap */
.minimap{position:relative;margin-top:18px;height:96px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--cream)}
.minimap-art{position:absolute;inset:0;width:100%;height:100%;opacity:.45;transition:opacity .2s ease}
.minimap.is-active .minimap-art{opacity:1}
.mm-idle{opacity:.55}
.mm-complete{opacity:.9}
.mm-selected{fill:var(--rust)}
.mm-row-band{fill:var(--rust);opacity:.35}
.minimap-rows{position:absolute;inset:0;display:grid}
.minimap-rows.at-row-count-5{grid-template-rows:repeat(5,1fr)}
.minimap-rows.at-row-count-10{grid-template-rows:repeat(10,1fr)}
.minimap-rows.at-row-count-12{grid-template-rows:repeat(12,1fr)}
.mm-row{border:0;background:transparent;padding:0;cursor:pointer}
.minimap-hint{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-size:.82rem;background:rgba(251,250,245,.6);pointer-events:none}

/* Demo engine: row counter */
.row-counter{display:flex;align-items:center;gap:10px;margin-top:14px}
.row-step{width:36px;height:36px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:1.1rem;line-height:1}
.row-step:disabled{opacity:.4;cursor:not-allowed}
.row-counter-field input{width:64px;min-height:36px;text-align:center;border:1px solid var(--line);border-radius:8px;font:inherit}
.row-counter-total{color:var(--muted);font-size:.9rem}

/* Secondary pages */
.content{max-width:1100px;margin:auto;padding:96px 28px}
.content.narrow{max-width:830px}
.page-hero{background:var(--mint);border-bottom:1px solid var(--line)}
.page-hero .content{padding-top:110px;padding-bottom:70px}
.page-hero h1,.content>h1{font-size:clamp(2.7rem,6vw,5rem);line-height:1;letter-spacing:-.055em;margin:.2em 0}
.section{padding:54px 0;border-bottom:1px solid var(--line)}
.section h2{font-size:clamp(1.55rem,3vw,2.3rem);letter-spacing:-.025em}
.section p,.section li{color:var(--muted);font-size:1.04rem}
.platform-list{border-top:1px solid var(--line)}
.platform{display:grid;grid-template-columns:1fr auto;align-items:center;gap:28px;padding:34px 0;border-bottom:1px solid var(--line)}
.platform h2{margin:0 0 5px}
.platform p{margin:0;color:var(--muted)}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{cursor:pointer;font-family:'Manrope';font-weight:700;font-size:1.1rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::after{content:'+';color:var(--brand);font-size:1.4rem}
.faq details[open] summary::after{content:'−'}
.faq details p{color:var(--muted);max-width:740px}
.notice{border-left:4px solid var(--brand);background:var(--mint);padding:16px 18px;margin:30px 0;border-radius:0 8px 8px 0}

/* Footer */
.site-footer{border-top:1px solid var(--line);background:var(--cream)}
.footer-shell{max-width:1180px;min-height:90px;margin:auto;padding:24px 28px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;color:var(--muted);font-size:.9rem}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-family:'Manrope';font-weight:800;color:var(--ink);margin-right:auto}
.footer-avatar{border-radius:50%;object-fit:cover;flex:none}
.footer-tag{color:var(--muted)}
.footer-shell nav{display:flex;gap:20px}
.footer-shell a{color:var(--muted);text-decoration:none}
.footer-shell a:hover{color:var(--brand)}

/* Boot */
.boot{position:fixed;inset:0;z-index:999;min-height:100svh;display:grid;place-content:center;justify-items:center;gap:14px;background:var(--cream)}
.boot-mark{width:72px;height:72px}
.boot-stroke{fill:none;stroke:var(--brand);stroke-width:10;stroke-linecap:round;stroke-dasharray:80;stroke-dashoffset:80}
.boot-stroke-a{animation:stitch-draw .4s ease forwards}
.boot-stroke-b{animation:stitch-draw .4s .25s ease forwards}
.boot-wordmark{font-family:'Manrope';font-size:1.3rem;font-weight:700;margin:0;opacity:0;transform:translateY(6px);color:var(--ink);animation:boot-copy .3s .55s ease forwards}
.boot-wordmark strong{color:var(--brand)}
@keyframes boot-copy{to{opacity:1;transform:none}}
@keyframes stitch-draw{to{stroke-dashoffset:0}}

#blazor-error-ui{display:none;position:fixed;inset:auto 16px 16px;background:#fff3cd;border:1px solid #d6b556;padding:14px;z-index:100}

@media(max-width:780px){
    .floating-nav{top:14px;left:14px}
    .floating-nav-toggle{width:46px;height:46px}

    .content{padding:68px 20px}
    .stitch-scroll-hint{display:block;margin-top:6px;font-size:.7rem}
    .variant-hero .stitch-grid{min-width:620px}
    .variant-showcase .stitch-grid{min-width:640px}

    .hero-canvas{height:100svh;overflow:hidden;padding:clamp(12px,3svh,22px) 16px;gap:clamp(10px,2.2svh,20px)}
    .hero-canvas>.eyebrow{font-size:.7rem}
    .canvas-wrap .stitch-stage{width:100%}
    .thread-palette{margin-bottom:8px}
    .palette-hint{display:none}
    .palette-list{gap:6px}
    .swatch{min-height:28px;padding:4px 9px 4px 5px;font-size:.72rem}
    .swatch-chip{width:13px;height:13px}
    .stitch-progress{font-size:.86rem;margin-top:6px}
    .intro-copy{gap:5px}
    .intro-copy .eyebrow{font-size:.68rem;margin:0}
    .intro-copy h1{font-size:clamp(1.3rem,5.6vw,1.75rem);line-height:1.16}
    .intro-copy .lead{font-size:.86rem;line-height:1.45}

    .footer-shell{padding:24px 20px}
    .actions{gap:10px;flex-wrap:nowrap}
    .actions .button{width:100%}
    .actions .text-action{width:100%;text-align:center}
    .actions .store-badge{width:auto;min-height:42px;padding:6px 12px;gap:8px;border-radius:9px}
    .actions .store-badge-icon{width:18px;height:18px}
    .actions .store-badge-eyebrow{font-size:.54rem}
    .actions .store-badge-name{font-size:.76rem}
}

@media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
    .boot-stroke{stroke-dashoffset:0}
    .boot-wordmark{opacity:1;transform:none}
    .cell.just-marked{animation:none}
    .cell.auto-cell{transition:none}
    .swatch.just-completed,.swatch.just-completed .swatch-chip{animation:none}
    .stitch-scroll.celebrate{animation:none}
}