/* Material 3 tonal palette generated from one seed hue (--h), swappable like an Android wallpaper */
:root{
  --h:150;
  --primary:oklch(48% .13 var(--h));
  --on-primary:#fff;
  --primary-container:oklch(90% .09 var(--h));
  --on-primary-container:oklch(24% .07 var(--h));
  --secondary-container:oklch(91% .035 var(--h));
  --on-secondary-container:oklch(24% .03 var(--h));
  --tertiary-container:oklch(91% .06 calc(var(--h) + 70));
  --on-tertiary-container:oklch(25% .06 calc(var(--h) + 70));
  --surface:oklch(98.6% .006 var(--h));
  --surface-low:oklch(96.6% .01 var(--h));
  --surface-mid:oklch(94.8% .012 var(--h));
  --surface-high:oklch(92.8% .014 var(--h));
  --on-surface:oklch(21% .012 var(--h));
  --on-surface-variant:oklch(42% .015 var(--h));
  --outline:oklch(60% .015 var(--h));
  --outline-variant:oklch(84% .015 var(--h));
  --inverse-surface:oklch(30% .01 var(--h));
  --inverse-on-surface:oklch(95% .01 var(--h));
  --inverse-primary:oklch(80% .12 var(--h));
  --error:#ba1a1a;
}
[data-theme="dark"]{
  --primary:oklch(80% .12 var(--h));
  --on-primary:oklch(28% .07 var(--h));
  --primary-container:oklch(38% .09 var(--h));
  --on-primary-container:oklch(91% .08 var(--h));
  --secondary-container:oklch(35% .03 var(--h));
  --on-secondary-container:oklch(90% .03 var(--h));
  --tertiary-container:oklch(36% .06 calc(var(--h) + 70));
  --on-tertiary-container:oklch(91% .05 calc(var(--h) + 70));
  --surface:oklch(16% .008 var(--h));
  --surface-low:oklch(19.5% .01 var(--h));
  --surface-mid:oklch(21.5% .011 var(--h));
  --surface-high:oklch(25% .012 var(--h));
  --on-surface:oklch(91% .01 var(--h));
  --on-surface-variant:oklch(78% .014 var(--h));
  --outline:oklch(62% .014 var(--h));
  --outline-variant:oklch(36% .014 var(--h));
  --inverse-surface:oklch(91% .01 var(--h));
  --inverse-on-surface:oklch(25% .01 var(--h));
  --inverse-primary:oklch(48% .13 var(--h));
  --error:#ffb4ab;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:16px}
body{font-family:"Roboto Flex",system-ui,sans-serif;background:var(--surface);color:var(--on-surface);-webkit-font-smoothing:antialiased;transition:background-color .5s,color .5s}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:3px solid var(--primary);outline-offset:2px}
.ms{font-family:"Material Symbols Rounded";font-size:24px;line-height:1;font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24;display:inline-block;user-select:none;flex:none;width:1em;overflow:hidden}
.ms.sm{font-size:18px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}

/* ripple */
.rp{position:relative;overflow:hidden;isolation:isolate}
.rp::before{content:"";position:absolute;inset:0;background:currentColor;opacity:0;transition:opacity .2s;z-index:-1}
.rp:hover::before{opacity:.08}
.ripple{position:absolute;border-radius:50%;background:currentColor;opacity:.2;transform:scale(0);animation:rip .55s ease-out forwards;pointer-events:none}
@keyframes rip{to{transform:scale(1);opacity:0}}

/* navigation rail, which becomes a bottom bar on phones */
.rail{position:fixed;inset:0 auto 0 0;width:88px;display:flex;flex-direction:column;align-items:center;padding:20px 0;z-index:20;background:var(--surface);transition:background-color .5s}
.fab{width:56px;height:56px;border-radius:16px;background:var(--primary-container);color:var(--on-primary-container);display:grid;place-items:center;box-shadow:0 1px 3px rgb(0 0 0/.18),0 4px 10px rgb(0 0 0/.1);margin-bottom:36px}
.nav{display:flex;flex-direction:column;gap:14px}
.nav a{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:12px;font-weight:600;letter-spacing:.3px;color:var(--on-surface-variant);width:72px}
.nav .ind{width:56px;height:32px;border-radius:16px;display:grid;place-items:center;transition:background-color .25s}
.nav a:hover .ind{background:color-mix(in oklch,var(--on-surface) 8%,transparent)}
.nav a.active{color:var(--on-surface)}
.nav a.active .ind{background:var(--secondary-container);color:var(--on-secondary-container)}
.nav a.active .ms{font-variation-settings:'FILL' 1,'wght' 500}

main{margin-left:88px;padding:16px 48px 96px;display:flex;flex-direction:column;align-items:center;gap:56px}
main > *{width:100%;max-width:1440px}
section{display:flex;flex-direction:column;gap:20px}
h2.title{font-size:32px;font-weight:500;letter-spacing:-.3px;display:flex;align-items:center;gap:12px}
h2.title .ms{font-size:28px;color:var(--primary)}

/* hero */
.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.card{background:var(--surface-low);border-radius:28px;padding:28px;transition:background-color .5s}
.hero-main{background:var(--surface-mid);padding:44px;display:flex;flex-direction:column;justify-content:center;gap:20px;min-height:420px}
.assist{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px 0 10px;border:1px solid var(--outline-variant);border-radius:8px;font-size:14px;font-weight:500;color:var(--on-surface-variant);width:max-content}
.assist .ms{color:var(--primary);font-size:18px}
h1{font-size:clamp(52px,7.4vw,104px);line-height:.92;font-weight:800;font-variation-settings:'wdth' 112,'opsz' 144;letter-spacing:-2px}
h1 span{color:var(--primary)}
.lead{font-size:20px;line-height:1.5;color:var(--on-surface-variant);max-width:34ch}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.btn{height:48px;padding:0 24px 0 18px;border-radius:24px;display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;letter-spacing:.1px}
.btn.filled{background:var(--primary);color:var(--on-primary)}
.btn.tonal{background:var(--secondary-container);color:var(--on-secondary-container)}
.btn.outlined{border:1px solid var(--outline);color:var(--primary)}
.btn .ms{font-size:20px}
.btn[disabled]{opacity:.7;pointer-events:none}

.hero-side{display:grid;grid-template-rows:1fr auto;gap:16px}
.portrait{background:var(--primary-container);display:grid;place-items:center;overflow:hidden;position:relative;padding:20px}
.portrait svg{width:min(300px,80%);aspect-ratio:1;overflow:visible}
.portrait .tag{position:absolute;padding:8px 14px;border-radius:12px;background:var(--surface);color:var(--on-surface);font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px;box-shadow:0 2px 8px rgb(0 0 0/.08)}
.portrait .tag .ms{font-size:18px;color:var(--primary)}
.t1{top:22px;left:22px}.t2{bottom:24px;right:20px}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{padding:20px 22px}
.stat b{display:block;font-size:34px;font-weight:700;font-variation-settings:'wdth' 110;color:var(--primary)}
.stat span{font-size:13px;color:var(--on-surface-variant)}

/* theme tools: bottom of the rail on desktop, top-right corner on phones */
.theme-tools{position:fixed;left:0;bottom:20px;width:88px;z-index:21;display:flex;flex-direction:column;align-items:center;gap:8px}
.icon-btn{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;color:var(--on-surface-variant);transition:background-color .2s,color .2s}
.icon-btn[aria-expanded="true"]{background:var(--secondary-container);color:var(--on-secondary-container)}
.palette{position:absolute;left:80px;bottom:0;width:300px;padding:20px;border-radius:16px;background:var(--surface-high);color:var(--on-surface);box-shadow:0 2px 6px rgb(0 0 0/.15),0 8px 24px rgb(0 0 0/.12);transform-origin:left bottom;animation:pop .18s cubic-bezier(.2,.9,.3,1.2)}
.palette[hidden]{display:none}
.palette h3{font-size:16px;font-weight:600;margin-bottom:4px}
.palette p{font-size:13px;line-height:1.45;color:var(--on-surface-variant);margin-bottom:14px}
@keyframes pop{from{opacity:0;transform:scale(.92)}}
.swatches{display:flex;gap:6px}
.sw{width:44px;height:44px;border-radius:50%;padding:3px;border:2px solid transparent;transition:border-color .2s,transform .2s}
.sw:hover{transform:scale(1.06)}
.sw[aria-pressed="true"]{border-color:var(--on-surface)}
.sw i{display:block;width:100%;height:100%;border-radius:50%}
@media (min-width:761px) and (max-height:640px){.theme-tools{flex-direction:row;gap:2px}.icon-btn{width:40px;height:40px}}

/* experience */
.list{background:var(--surface-low);border-radius:28px;overflow:hidden;list-style:none}
.item{display:flex;align-items:center;gap:18px;padding:18px 24px;border-bottom:1px solid var(--outline-variant)}
.item:last-child{border-bottom:0}
.avatar{width:48px;height:48px;border-radius:50%;background:var(--secondary-container);color:var(--on-secondary-container);display:grid;place-items:center;font-weight:700;flex:none}
.item.now .avatar{background:var(--primary);color:var(--on-primary)}
.item .body{flex:1;min-width:0}
.item h3{font-size:17px;font-weight:600}
.item p{font-size:14px;color:var(--on-surface-variant);margin-top:2px}
.item p.dates{font-size:13px;margin-top:4px;font-variant-numeric:tabular-nums}
.badge{font-size:12px;font-weight:600;padding:6px 12px;border-radius:8px;background:var(--surface-high);color:var(--on-surface-variant);white-space:nowrap}
.item.now .badge{background:var(--tertiary-container);color:var(--on-tertiary-container)}

/* projects */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:1100px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid{grid-template-columns:1fr}}
.proj{background:var(--surface-low);border-radius:24px;padding:22px;display:flex;flex-direction:column;gap:14px;transition:background-color .3s,transform .3s cubic-bezier(.2,.9,.3,1.2)}
.proj:hover{background:var(--surface-mid);transform:translateY(-3px)}
.proj .top{display:flex;align-items:center;gap:14px}
.icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-weight:800;font-size:20px;flex:none;background:oklch(88% .09 calc(var(--h) + var(--o)));color:oklch(28% .08 calc(var(--h) + var(--o)))}
.proj h3{font-size:17px;font-weight:600;word-break:break-word}
.proj .meta{font-size:13px;color:var(--on-surface-variant);display:flex;align-items:center;gap:4px}
.proj p{font-size:15px;line-height:1.5;color:var(--on-surface-variant);flex:1}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.chip{height:32px;padding:0 14px;border-radius:8px;border:1px solid var(--outline-variant);font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:6px;color:var(--on-surface-variant)}
.chip.sel{background:var(--secondary-container);border-color:transparent;color:var(--on-secondary-container)}
.chip.sel .ms{font-size:18px}

/* writing / education / languages */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cols h3{font-size:18px;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.cols h3 .ms{color:var(--primary)}
.row{padding:10px 0;border-top:1px solid var(--outline-variant)}
.row:first-of-type{border-top:0}
.row b{display:block;font-weight:600;font-size:15px}
.row span{font-size:13px;color:var(--on-surface-variant)}
.prog{height:6px;border-radius:3px;background:var(--secondary-container);margin-top:8px;overflow:hidden}
.prog i{display:block;height:100%;border-radius:3px;background:var(--primary)}
.writing a{display:flex;align-items:center;gap:16px;padding:16px 4px;border-top:1px solid var(--outline-variant)}
.writing a:first-of-type{border-top:0}
.writing a .ms{color:var(--on-surface-variant)}
.writing b{flex:1;font-weight:500;font-size:16px;line-height:1.35}


/* contact */
.contact-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:16px}
.contact{background:var(--primary);color:var(--on-primary);padding:48px;display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.contact h2{font-size:clamp(36px,5vw,56px);font-weight:800;font-variation-settings:'wdth' 110;line-height:1}
.contact p{font-size:18px;opacity:.9;max-width:40ch;line-height:1.5}
.contact .btn.filled{background:var(--on-primary);color:var(--primary)}
.contact .btn.outlined{border-color:color-mix(in oklch,var(--on-primary) 60%,transparent);color:var(--on-primary)}

.form{--field-bg:var(--surface-low);display:flex;flex-direction:column;gap:22px;padding:36px;position:relative}
.form h3{font-size:24px;font-weight:600}
.form .hint{color:var(--on-surface-variant);font-size:14px;margin-top:-14px;line-height:1.5;display:flex;gap:8px;align-items:flex-start}
.form .hint .ms{font-size:18px;color:var(--primary);margin-top:1px}
.field{position:relative}
.field input,.field textarea{display:block;width:100%;font:inherit;font-size:16px;line-height:24px;color:var(--on-surface);background:transparent;border:1px solid var(--outline);border-radius:8px;padding:15px 16px;outline:0;caret-color:var(--primary);transition:border-color .2s}
.field textarea{min-height:168px;resize:vertical}
.field :is(input,textarea):hover{border-color:var(--on-surface)}
.field :is(input,textarea):focus{border:2px solid var(--primary);padding:14px 15px}
.field label{position:absolute;left:12px;top:16px;padding:0 4px;font-size:16px;line-height:24px;color:var(--on-surface-variant);background:var(--field-bg);pointer-events:none;transition:top .15s,font-size .15s,color .15s,background-color .5s;border-radius:4px}
.field :is(input,textarea):is(:focus,:not(:placeholder-shown)) + label{top:-12px;font-size:12px}
.field :is(input,textarea):focus + label{color:var(--primary)}
.field input:-webkit-autofill{-webkit-text-fill-color:var(--on-surface);transition:background-color 9999s}
.support{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--on-surface-variant);padding:4px 16px 0}
.field.invalid :is(input,textarea),.field.invalid :is(input,textarea):focus{border-color:var(--error)}
.field.invalid label,.field.invalid .support{color:var(--error)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form .btn{align-self:flex-start}
.spinner{width:18px;height:18px;border-radius:50%;border:2.5px solid currentColor;border-right-color:transparent;animation:spin .8s linear infinite;display:none}
.btn.loading .spinner{display:inline-block}
.btn.loading .ms{display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.sent{display:none;flex-direction:column;align-items:flex-start;gap:14px}
.sent .ms{font-size:44px;color:var(--primary);font-variation-settings:'FILL' 1}
.sent h3{font-size:24px}
.sent p{color:var(--on-surface-variant);line-height:1.5}
.form.done > :not(.sent){display:none}
.form.done .sent{display:flex}

.snack{position:fixed;left:50%;bottom:24px;transform:translate(-50%,24px);opacity:0;visibility:hidden;background:var(--inverse-surface);color:var(--inverse-on-surface);padding:14px 16px 14px 20px;border-radius:8px;display:flex;gap:20px;align-items:center;font-size:14px;box-shadow:0 4px 14px rgb(0 0 0/.25);transition:transform .35s cubic-bezier(.2,.9,.3,1.1),opacity .2s,visibility .35s;z-index:50;max-width:min(560px,calc(100% - 32px))}
.snack.show{transform:translate(-50%,0);opacity:1;visibility:visible}
.snack button{color:var(--inverse-primary);font-weight:600;white-space:nowrap}
footer{font-size:13px;color:var(--on-surface-variant);text-align:center}

@media (max-width:980px){
  .hero,.contact-wrap{grid-template-columns:1fr}
  .cols{grid-template-columns:1fr}
}
@media (max-width:760px){
  .rail{inset:auto 0 0 0;width:auto;height:80px;flex-direction:row;padding:0;background:var(--surface-mid);justify-content:center}
  .rail .fab{position:fixed;right:16px;bottom:96px;margin:0}
  .theme-tools{position:absolute;left:auto;bottom:auto;top:40px;right:24px;width:auto;flex-direction:row;gap:4px;z-index:15}
  .icon-btn{width:40px;height:40px}
  .palette{left:auto;bottom:auto;right:0;top:calc(100% + 8px);width:min(300px,calc(100vw - 48px));transform-origin:right top}
  .nav{flex-direction:row;gap:0;width:100%;justify-content:space-around}
  .nav a{width:auto;flex:1}
  main{margin-left:0;padding:16px 16px 120px;gap:44px}
  .hero-main{padding:28px;min-height:0}
  .stats{gap:8px}
  .stat{padding:16px}
  .stat b{font-size:26px}
  .lead{font-size:18px}
  .contact{padding:32px 24px}
  .form{padding:28px 20px}
  .item{padding:16px 18px;gap:14px}
  .snack{bottom:96px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}