/* ==========================================================================
   HIPMI Karanganyar Run 2026 - "Athletic Civic Momentum"
   base.css : design tokens, reset, typography, layout primitives, chrome
   --------------------------------------------------------------------------
   COLOR LOCK  navy = structure/ink | gold = podium, prize, primary action
               green = live telemetry, confirmed state, go
   SHAPE LOCK  buttons + inputs 8px | cards, panels, media 12px | nothing else
   THEME LOCK  one theme for the whole page; follows prefers-color-scheme,
               manual override via [data-theme] on <html>
   ========================================================================== */

/* ---------- tokens : light (default) ----------
   Disampel langsung dari berkas identitas: hijau hutan #1c4130 pada logo,
   emas antik pada medali, dan merah #950101 pada nomor dada 5K. Dasar putih
   mengikuti jersey.

   PERAN WARNA  hijau hutan = struktur dan teks
                emas        = podium, medali, hadiah, aksi utama
                hijau terang= status langsung dan konfirmasi
                merah       = peringatan dan penanda kategori 5K
   ---------------------------------------------------------------------- */
:root{
  --brand-ink:#1c4130;        /* permukaan gelap: kartu, tombol, footer */
  --brand-black:#0e2119;      /* paling gelap: gradasi dan latar medali */
  --brand-ink-2:#2a5a42;      /* hover di atas permukaan gelap */
  --brand-accent:#3f7f57;     /* aksen interaktif: fokus, terpilih, bilah */

  --gold:#b8924a;
  --gold-bright:#d9b667;
  --gold-deep:#7a5c22;
  --gold-wash:rgba(184,146,74,.16);

  --lime:#4ea96b;             /* status langsung, bukan hijau logo */
  --lime-bright:#6fc98a;
  --lime-deep:#2f6b43;
  --lime-wash:rgba(78,169,107,.16);

  --silver:#dfe4e0;

  --danger:#9a1b16;
  --danger-wash:rgba(154,27,22,.10);

  --bg:#fbfcfa;
  --bg-2:#f0f4ef;
  --surface:#ffffff;
  --surface-2:#f5f8f4;
  --line:#e0e7df;
  --line-strong:#c3cec2;

  --ink:#13211a;
  --ink-2:#45544c;
  --ink-3:#66746b;
  --on-dark:#f3f8f2;
  --on-dark-2:#a9bcae;

  --r-ui:8px;      /* tombol, input, pil, chip */
  --r-card:12px;   /* kartu, panel, media, modal */

  --shadow-1:0 1px 2px rgba(14,33,25,.07), 0 8px 22px -14px rgba(14,33,25,.32);
  --shadow-2:0 2px 4px rgba(14,33,25,.08), 0 26px 52px -26px rgba(14,33,25,.42);

  --ease:cubic-bezier(.16,1,.3,1);
  --shell:1280px;

  color-scheme:light;
}

/* ---------- tokens : dark ---------- */
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0b1710; --bg-2:#0f1d15; --surface:#152219; --surface-2:#1c2c22;
    --line:#293a30; --line-strong:#3b5044;
    --ink:#e9f2e9; --ink-2:#adbcb1; --ink-3:#86968b;
    --brand-ink:#152219; --brand-black:#070f0b; --brand-accent:#5fb277;
    --gold-wash:rgba(184,146,74,.2); --lime-wash:rgba(78,169,107,.2);
    --danger:#e8837c; --danger-wash:rgba(232,131,124,.14);
    --shadow-1:0 1px 2px rgba(0,0,0,.4), 0 8px 22px -14px rgba(0,0,0,.7);
    --shadow-2:0 2px 4px rgba(0,0,0,.45), 0 26px 52px -26px rgba(0,0,0,.8);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0b1710; --bg-2:#0f1d15; --surface:#152219; --surface-2:#1c2c22;
  --line:#293a30; --line-strong:#3b5044;
  --ink:#e9f2e9; --ink-2:#adbcb1; --ink-3:#86968b;
  --brand-ink:#152219; --brand-black:#070f0b; --brand-accent:#5fb277;
  --gold-wash:rgba(184,146,74,.2); --lime-wash:rgba(78,169,107,.2);
  --danger:#e8837c; --danger-wash:rgba(232,131,124,.14);
  --shadow-1:0 1px 2px rgba(0,0,0,.4), 0 8px 22px -14px rgba(0,0,0,.7);
  --shadow-2:0 2px 4px rgba(0,0,0,.45), 0 26px 52px -26px rgba(0,0,0,.8);
  color-scheme:dark;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;display:block}
img{height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
a:not([class]){text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:var(--r-ui)}
::selection{background:var(--lime-bright);color:var(--brand-black)}
[hidden]{display:none !important}

/* ---------- typography ---------- */
.display{
  font-family:"Chivo","Inter",sans-serif;font-weight:900;
  letter-spacing:-.035em;line-height:1.02;text-wrap:balance;
}
.h-xl{font-size:clamp(2.4rem,1.3rem + 4.4vw,4.4rem)}
.h-lg{font-size:clamp(2rem,1.25rem + 2.9vw,3.2rem)}
.h-md{font-size:clamp(1.5rem,1.15rem + 1.5vw,2.2rem)}
.h-sm{font-size:clamp(1.15rem,1rem + .6vw,1.45rem);letter-spacing:-.02em}
.mono{font-family:"Space Mono","SFMono-Regular",ui-monospace,monospace;font-variant-numeric:tabular-nums}
.tel{font-family:"Space Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.lede{font-size:clamp(1.02rem,.96rem + .3vw,1.18rem);color:var(--ink-2);max-width:62ch}
.muted{color:var(--ink-2)}
.dim{color:var(--ink-3)}
.eyebrow{
  font-family:"Space Mono",monospace;font-size:.72rem;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3);
}
.num{font-variant-numeric:tabular-nums lining-nums}

/* ---------- layout primitives ---------- */
.shell{width:min(100% - 2.5rem,var(--shell));margin-inline:auto}
@media (max-width:640px){.shell{width:calc(100% - 2rem)}}
.band{padding-block:clamp(3.5rem,2rem + 6vw,6.5rem)}
.band-tight{padding-block:clamp(2.5rem,1.6rem + 3.6vw,4rem)}
.stack{display:grid;gap:1rem}
.stack-lg{display:grid;gap:2rem}
.row{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}
.between{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;flex-wrap:wrap}
.rule{height:1px;background:var(--line);border:0;margin:0}
.section-head{max-width:64ch;display:grid;gap:.85rem;margin-bottom:clamp(1.75rem,1rem + 2.4vw,3rem)}

/* ---------- surfaces ---------- */
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.panel-flat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card)}
.panel-ink{
  background:var(--brand-ink);color:var(--on-dark);
  border:1px solid rgba(255,255,255,.09);border-radius:var(--r-card);
}
.panel-ink .muted,.panel-ink .dim{color:var(--on-dark-2)}
.pad{padding:clamp(1.15rem,.85rem + 1.1vw,1.75rem)}
.pad-lg{padding:clamp(1.5rem,1rem + 1.8vw,2.5rem)}

/* ---------- buttons (8px lock) ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  white-space:nowrap;padding:.8rem 1.3rem;border-radius:var(--r-ui);
  font-weight:700;font-size:.95rem;letter-spacing:-.01em;
  border:1px solid transparent;
  transition:transform .16s var(--ease),background-color .18s,border-color .18s,color .18s,box-shadow .18s;
}
.btn i{font-size:1.15em}
.btn:active{transform:translateY(1px) scale(.985)}
.btn-gold{background:var(--gold);color:#1a1205;box-shadow:0 1px 0 rgba(255,255,255,.3) inset}
.btn-gold:hover{background:var(--gold-bright)}
.btn-ink{background:var(--brand-ink);color:var(--on-dark)}
.btn-ink:hover{background:var(--brand-ink-2)}
.btn-live{background:var(--lime);color:#04240f}
.btn-live:hover{background:var(--lime-bright)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink-3);background:var(--surface-2)}
.btn-on-dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.26);color:#fff}
.btn-on-dark:hover{background:rgba(255,255,255,.16)}
.btn-sm{padding:.55rem .9rem;font-size:.85rem}
.btn-lg{padding:1rem 1.7rem;font-size:1.02rem}
.btn-block{width:100%}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.btn-link{
  display:inline-flex;align-items:center;gap:.4rem;font-weight:700;font-size:.92rem;
  color:var(--ink);text-decoration:none;border-bottom:1.5px solid var(--gold);padding-bottom:2px;
  transition:gap .18s var(--ease);
}
.btn-link:hover{gap:.7rem}

/* ---------- chips, tags, badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.32rem .68rem;border-radius:var(--r-ui);
  font-family:"Space Mono",monospace;font-size:.7rem;font-weight:700;
  letter-spacing:.11em;text-transform:uppercase;
  border:1px solid var(--line-strong);color:var(--ink-2);background:var(--surface);
}
.chip-gold{background:var(--gold-wash);border-color:rgba(245,158,11,.4);color:var(--gold-deep)}
.chip-live{background:var(--lime-wash);border-color:rgba(34,197,94,.42);color:var(--lime-deep)}
.chip-danger{background:var(--danger-wash);border-color:rgba(209,68,59,.35);color:var(--danger)}
.chip-on-dark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25);color:#fff}
:root[data-theme="dark"] .chip-gold,
:root[data-theme="dark"] .chip-live{color:var(--ink)}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .chip-gold{color:var(--gold-bright)}
  :root:not([data-theme="light"]) .chip-live{color:var(--lime-bright)}
}
/* live pulse : real semantic state only (RFID feed is actually streaming) */
.pulse{width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;position:relative}
.pulse::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;
  border:1.5px solid var(--lime);opacity:.55;animation:ping 1.9s var(--ease) infinite;
}
@keyframes ping{0%{transform:scale(.6);opacity:.65}70%,100%{transform:scale(1.5);opacity:0}}
@media (prefers-reduced-motion:reduce){.pulse::after{animation:none;opacity:.4}}

/* ---------- header / nav (single line, 68px) ---------- */
.masthead{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  border-bottom:1px solid transparent;
  transition:border-color .25s,background-color .25s,box-shadow .25s;
}
@supports (backdrop-filter:blur(1px)){
  .masthead{backdrop-filter:blur(14px) saturate(160%)}
}
.masthead[data-stuck="true"]{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.masthead-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:1.25rem}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;flex:none}
.brand-mark{
  height:40px;width:auto;flex:none;display:block;
  /* lambang logo sudah punya garis luar hitam, jadi tidak perlu bingkai lagi */
}
@media (max-width:520px){.brand-mark{height:34px}}
.brand-text{display:grid;line-height:1.15}
.brand-text b{font-family:"Chivo",sans-serif;font-weight:900;font-size:1rem;letter-spacing:-.02em}
.brand-text span{font-family:"Space Mono",monospace;font-size:.62rem;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase}

/* logo sponsor utama, berdampingan dengan lambang lomba di masthead */
.brand-group{display:flex;align-items:center;gap:.9rem;flex:none;min-width:0}
.brand-co{
  display:flex;align-items:center;flex:none;text-decoration:none;
  padding-inline-start:.9rem;border-inline-start:1px solid var(--line-strong);
  opacity:.92;transition:opacity .18s;
}
.brand-co:hover{opacity:1}
.brand-co img{display:block;height:40px;width:auto}
:root[data-theme="dark"] .brand-co img{filter:brightness(0) invert(1)}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .brand-co img{filter:brightness(0) invert(1)}
}
@media (max-width:520px){
  .brand-group{gap:.55rem}
  .brand-co{padding-inline-start:.55rem}
  .brand-co img{height:34px}
}
/* Layar sempit: kedua lambang berdiri sama besar tanpa tulisan di antaranya.
   Nama lomba sudah terbaca besar di hero, jadi yang dilepas hanya tulisannya. */
@media (max-width:430px){
  .brand-text{display:none}
}
/* jaring pengaman: bila tetap kurang ruang, teks lomba yang mengalah,
   logo sponsor tidak pernah menyusut */
@media (max-width:520px){
  .brand-group{flex:0 1 auto;min-width:0}
  .brand{flex:0 1 auto;min-width:0}
  .brand-text{min-width:0}
  .brand-text b,.brand-text span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}
.nav{display:flex;align-items:center;gap:.25rem}
.nav a{
  text-decoration:none;font-size:.9rem;font-weight:600;color:var(--ink-2);
  padding:.5rem .7rem;border-radius:var(--r-ui);transition:color .18s,background-color .18s;
}
.nav a:hover{color:var(--ink);background:var(--surface-2)}
.nav a[aria-current="page"]{color:var(--ink);background:var(--surface-2)}
.masthead-actions{display:flex;align-items:center;gap:.5rem;flex:none}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-ui);display:grid;place-items:center;
  border:1px solid var(--line);color:var(--ink-2);background:var(--surface);
  transition:color .18s,border-color .18s,background-color .18s;
}
.icon-btn:hover{color:var(--ink);border-color:var(--line-strong)}
.icon-btn i{font-size:1.15rem}
.nav-toggle{display:none}
@media (max-width:1040px){
  .nav{
    display:none;position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:.15rem;
    background:var(--surface);border-bottom:1px solid var(--line);
    padding:.75rem 1.25rem 1.15rem;box-shadow:var(--shadow-2);
  }
  .masthead[data-open="true"] .nav{display:flex}
  .nav a{padding:.75rem .65rem;font-size:1rem}
  .nav-toggle{display:grid}
  .masthead-inner{position:relative}
}
.nav [data-nav-cta]{display:none}
@media (max-width:520px){
  .hide-xs{display:none}
  .nav [data-nav-cta]{
    display:block;color:var(--brand-black);background:var(--gold);
    font-weight:700;text-align:center;margin-top:.5rem;
  }
  :root[data-theme="dark"] .nav [data-nav-cta],
  .nav [data-nav-cta]:hover{color:var(--brand-black);background:var(--gold-bright)}
}

/* ---------- footer ---------- */
.footer{background:var(--brand-black);color:var(--on-dark);padding-block:clamp(3rem,2rem + 3vw,4.5rem) 2rem}
.footer a{color:var(--on-dark-2);text-decoration:none;transition:color .18s}
.footer a:hover{color:#fff}
.footer-grid{display:grid;gap:2.5rem;grid-template-columns:1.5fr 1fr 1fr 1fr}
@media (max-width:880px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer h4{font-family:"Chivo",sans-serif;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:1rem}
.footer li{margin-bottom:.6rem;font-size:.92rem}
.footer-base{
  margin-top:3rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-size:.82rem;color:var(--on-dark-2);
}

/* ---------- forms ---------- */
.field{display:grid;gap:.45rem}
.field > label,.field-label{
  font-size:.82rem;font-weight:700;letter-spacing:.01em;color:var(--ink);
}
.field-label .req{color:var(--danger);margin-left:.15rem}
.field .hint{font-size:.78rem;color:var(--ink-3);line-height:1.45}
.field .err{
  font-size:.79rem;font-weight:600;color:var(--danger);
  display:flex;align-items:center;gap:.35rem;
}
.field .err i{font-size:1rem}
.input,.select,.textarea{
  width:100%;padding:.72rem .85rem;border-radius:var(--r-ui);
  background:var(--surface);border:1.5px solid var(--line-strong);color:var(--ink);
  font-size:.95rem;transition:border-color .18s,box-shadow .18s,background-color .18s;
}
.input::placeholder,.textarea::placeholder{color:var(--ink-3);opacity:1}
.input:hover,.select:hover,.textarea:hover{border-color:var(--ink-3)}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--brand-accent);box-shadow:0 0 0 3px rgba(29,67,128,.18);
}
:root[data-theme="dark"] .input:focus,
:root[data-theme="dark"] .select:focus,
:root[data-theme="dark"] .textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(245,158,11,.22)}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .input:focus,
  :root:not([data-theme="light"]) .select:focus,
  :root:not([data-theme="light"]) .textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(245,158,11,.22)}
}
.field[data-invalid="true"] .input,
.field[data-invalid="true"] .select,
.field[data-invalid="true"] .textarea{border-color:var(--danger);box-shadow:0 0 0 3px var(--danger-wash)}
.select{appearance:none;padding-right:2.4rem;
  background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);
  background-position:calc(100% - 18px) 52%,calc(100% - 12px) 52%;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.textarea{resize:vertical;min-height:88px}
.grid-2{display:grid;gap:1.15rem;grid-template-columns:1fr 1fr}
.grid-3{display:grid;gap:1.15rem;grid-template-columns:repeat(3,1fr)}
@media (max-width:720px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* checkbox / radio blocks */
.check{
  display:flex;gap:.75rem;align-items:flex-start;
  padding:.9rem 1rem;border:1.5px solid var(--line-strong);border-radius:var(--r-ui);
  background:var(--surface);cursor:pointer;transition:border-color .18s,background-color .18s;
}
.check:hover{border-color:var(--ink-3)}
.check input{margin-top:.22rem;accent-color:var(--brand-accent);width:17px;height:17px;flex:none}
.check-text{display:grid;gap:.2rem;font-size:.9rem}
.check-text b{font-weight:700}
.check-text span{color:var(--ink-3);font-size:.82rem;line-height:1.5}
.check:has(input:checked){border-color:var(--brand-accent);background:var(--surface-2)}

/* ---------- skeleton / empty / error shared states ---------- */
.skel{
  border-radius:var(--r-ui);
  background:linear-gradient(100deg,var(--surface-2) 30%,var(--line) 50%,var(--surface-2) 70%);
  background-size:220% 100%;animation:shimmer 1.35s linear infinite;
}
@keyframes shimmer{to{background-position:-220% 0}}
@media (prefers-reduced-motion:reduce){.skel{animation:none}}
.empty{
  display:grid;gap:.6rem;justify-items:center;text-align:center;
  padding:clamp(2rem,1.4rem + 2.4vw,3.5rem) 1.5rem;
  border:1.5px dashed var(--line-strong);border-radius:var(--r-card);color:var(--ink-2);
}
.empty i{font-size:2rem;color:var(--ink-3)}
.empty b{font-family:"Chivo",sans-serif;font-size:1.05rem;color:var(--ink)}
.empty p{font-size:.9rem;max-width:44ch}
.inline-error{
  display:flex;gap:.6rem;align-items:flex-start;
  padding:.85rem 1rem;border-radius:var(--r-ui);
  background:var(--danger-wash);border:1px solid rgba(209,68,59,.3);
  color:var(--danger);font-size:.88rem;font-weight:600;
}
.inline-error i{font-size:1.15rem;flex:none}

/* ---------- motion : reveal on scroll (IntersectionObserver driven) ---------- */
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal][data-delay="1"]{transition-delay:.07s}
[data-reveal][data-delay="2"]{transition-delay:.14s}
[data-reveal][data-delay="3"]{transition-delay:.21s}
[data-reveal][data-delay="4"]{transition-delay:.28s}
[data-reveal][data-delay="5"]{transition-delay:.35s}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}

/* ---------- utilities ---------- */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:1rem;top:-100px;z-index:100;
  background:var(--gold);color:var(--brand-black);font-weight:700;
  padding:.7rem 1.1rem;border-radius:var(--r-ui);transition:top .2s var(--ease);text-decoration:none;
}
.skip-link:focus{top:1rem}
.scroll-x{
  display:flex;gap:1rem;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:.5rem;scrollbar-width:thin;
}
.scroll-x > *{scroll-snap-align:start;flex:none}

/* anchored sections must clear the sticky masthead */
section[id],div[id],h2[id],h3[id]{scroll-margin-top:88px}