/* DuelChamp — landing RSO.
   Palette derivata dal marchio: oro #C27D20 e inchiostro #14161A sono i due
   fill del logo, il fondo #0E1013 viene dal suo preview. Nulla è inventato.

   Due superfici, due mestieri: la landing è un manifesto e resta scura
   sempre; i documenti sono una superficie di lettura e seguono il tema di
   sistema, con un corpo graziato perché sono 470 righe di prosa legale. */

/* ---------------------------------------------------------------- token */

:root {
  --ink:        #0E1013;
  --ink-raised: #171A20;
  --ink-line:   #22262D;
  --gold:       #C27D20;
  --gold-lit:   #E3A64A;
  --bone:       #E8E5DF;
  --bone-dim:   #8A8D95;

  --paper:      #FBFAF8;
  --paper-text: #1A1D22;
  --paper-dim:  #5A6068;
  --paper-rule: #E4E0D8;

  --display: "Archivo", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --body:    "Archivo", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --read:    "Source Serif 4", ui-serif, Georgia, "Times New Roman", serif;
  --mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --measure: 68ch;
  --gutter:  clamp(1.25rem, 5vw, 4rem);
  --shell:   min(72rem, 100% - var(--gutter) * 2);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--gold-lit);
  outline-offset: 3px;
  border-radius: 1px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: .75rem 1rem;
  background: var(--gold);
  color: #12140F;
  font: 600 .875rem/1 var(--body);
  z-index: 10;
}
.skip:focus { left: 0; }

.shell { width: var(--shell); margin-inline: auto; }

/* --------------------------------------------------------------- header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.25rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  font-family: var(--display);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.brand svg, .brand img, .brand picture { display: block; height: 1.65rem; width: auto; }
.wordmark > span { color: var(--gold); }

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(.9rem, 3vw, 1.9rem);
  font-size: .8125rem;
  letter-spacing: .06em;
}
.site-nav a { text-decoration: none; padding-block: .25rem; }
.site-nav a:hover { color: var(--gold-lit); }
.site-nav .locale {
  font-family: var(--mono);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .12em;
}

/* --------------------------------------------------------------- shared */

.eyebrow {
  font-family: var(--mono);
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 1.25rem;
}

/* ------------------------------------------------------------- LANDING */

.landing {
  background: var(--ink);
  color: var(--bone);
  /* un alone d'oro appena percettibile dietro l'hero, non un gradiente decorativo */
  background-image: radial-gradient(90rem 40rem at 15% -10%, rgba(194,125,32,.10), transparent 60%);
  background-repeat: no-repeat;
}

.landing .site-header { border-bottom: 1px solid var(--ink-line); }
.landing .site-nav a { color: var(--bone-dim); }
.landing .brand { color: var(--bone); }

.hero {
  padding-block: clamp(1.75rem, 6.5vh, 5.5rem) clamp(1.25rem, 3vh, 2.25rem);
  display: grid;
  gap: clamp(2.5rem, 6vw, 4.5rem);
  align-items: center;
}
@media (min-width: 62rem) {
  .hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    /* L'hero possiede la prima schermata a prescindere dalla lingua: l'inglese
       è più corto dell'italiano e senza questo lasciava un vuoto in fondo con
       la sezione successiva che faceva capolino. Il contenuto è centrato, così
       lo scarto fra le due lingue si distribuisce invece di accumularsi sotto. */
    min-height: calc(100svh - 5.5rem);
  }
  /* "the champion." è una frase sola: spezzarla lascia l'articolo in oro
     orfano in fondo alla riga. Solo qui, dove è certo che ci stia. */
  .hero h1 em { white-space: nowrap; }
}

/* --- il tabellone: quello che il titolo promette, non un ornamento --- */

/* I grid item hanno min-width:auto, quindi la larghezza min-content della
   targa — che ha il code in nowrap — risalirebbe alla colonna e allargherebbe
   la pagina. min-width:0 la lascia stringere; a quel punto overflow:hidden
   sulla targa e overflow-x:auto sul code fanno il resto. */
.hero-text { min-width: 0; }
.plate { min-width: 0; }

.bracket {
  width: 100%;
  max-width: 27rem;
  height: auto;
  justify-self: center;
  color: var(--gold);
}
.bracket-lines { opacity: .26; }

.bracket-run {
  color: var(--gold-lit);
  stroke-dasharray: 620;
  stroke-dashoffset: 620;
  animation: bracket-run 1.15s .3s cubic-bezier(.65, 0, .35, 1) forwards;
  filter: drop-shadow(0 0 6px rgba(227, 166, 74, .35));
}
.bracket-crown {
  fill: var(--gold-lit);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  animation: crown .5s 1.35s cubic-bezier(.2, 1.5, .4, 1) forwards;
}

@keyframes bracket-run { to { stroke-dashoffset: 0; } }
@keyframes crown {
  from { opacity: 0; transform: scale(.55); }
  to   { opacity: 1; transform: scale(1); }
}

/* sotto i 62rem il tabellone starebbe stretto e illeggibile: si toglie */
@media (max-width: 61.999rem) {
  .bracket { display: none; }
}

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-variation-settings: "wdth" 112;
  font-size: clamp(2.3rem, min(6.6vw, 10.4vh), 5.2rem);
  line-height: .95;
  letter-spacing: -.03em;
  margin: 0;
  max-width: 17ch;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  color: var(--gold-lit);
}

.hero .lede {
  margin: clamp(1rem, 2.2vh, 1.6rem) 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--bone-dim);
}

/* --- firma: la targa incisa col tournament code --- */

.plate-wrap { margin-top: clamp(1.1rem, 3vh, 2.4rem); }

.plate {
  position: relative;
  display: inline-block;
  max-width: 100%;
  padding: clamp(.85rem, 2.2vh, 1.4rem) clamp(1.25rem, 4vw, 2.25rem);
  background: linear-gradient(180deg, #171A20 0%, #101318 100%);
  border: 1px solid rgba(194, 125, 32, .26);
  border-radius: 3px;
  box-shadow:
    inset 0 1px 0 rgba(227, 166, 74, .10),
    inset 0 -1px 0 rgba(0, 0, 0, .5),
    0 24px 64px -32px #000;
  overflow: hidden;
}

/* il filo d'oro sul bordo superiore: la luce che prende un bordo inciso */
.plate::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-lit) 35%, var(--gold-lit) 65%, transparent);
  transform: scaleX(0);
  transform-origin: left center;
  animation: plate-rule 1s .3s cubic-bezier(.19, 1, .22, 1) forwards;
}

.plate-label {
  display: block;
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bone-dim);
  margin-bottom: clamp(.5rem, 1.2vh, .85rem);
}

.plate-code {
  display: block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: clamp(.95rem, min(2.6vw, 3.4vh), 1.4rem);
  letter-spacing: .1em;
  color: var(--gold-lit);
  white-space: nowrap;
  overflow-x: auto;
  opacity: 0;
  animation: plate-code .7s .55s ease-out forwards;
}

.plate-note {
  margin: .9rem 0 0;
  font-size: .8125rem;
  color: var(--bone-dim);
  max-width: 68ch;
}

@keyframes plate-rule { to { transform: scaleX(1); } }
@keyframes plate-code { from { opacity: 0; transform: translateY(.35rem); } to { opacity: 1; transform: none; } }

/* --- sezioni --- */

.band { padding-block: clamp(3.5rem, 9vh, 6rem); }
.band + .band { border-top: 1px solid var(--ink-line); }

.band > h2 {
  font-family: var(--display);
  font-weight: 700;
  font-variation-settings: "wdth" 108;
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: -.015em;
  margin: 0 0 2.5rem;
  max-width: 24ch;
  text-wrap: balance;
}

.band > .band-lede {
  margin: -1.75rem 0 2.5rem;
  max-width: 56ch;
  color: var(--bone-dim);
}

/* il ciclo È una sequenza: la numerazione porta informazione, non decora */
.steps {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr));
  counter-reset: none;
}
.step { border-top: 1px solid var(--ink-line); padding-top: 1.25rem; }
.step-n {
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--gold);
}
.step h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: .01em;
  margin: .55rem 0 .6rem;
}
.step p { margin: 0; color: var(--bone-dim); font-size: .9375rem; }

/* le tre aree NON sono una sequenza: nessun numero */
.cards {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr));
}
.card { border-top: 2px solid var(--gold); padding-top: 1.1rem; }
.card h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.125rem;
  margin: 0 0 .6rem;
}
.card p { margin: 0; color: var(--bone-dim); font-size: .9375rem; }

/* i confini: stessa griglia, superficie diversa. Il contrasto è la superficie,
   non un secondo accento di colore. */
.limits {
  background: var(--ink-raised);
  border-top: 1px solid var(--ink-line);
}
/* quattro voci: due per riga, non tre più un orfano */
.limits .cards { grid-template-columns: repeat(auto-fit, minmax(min(24rem, 100%), 1fr)); }
.limits .card { border-top-color: rgba(194, 125, 32, .45); }
.limits .card h3 { color: var(--gold-lit); }

/* --- documenti --- */

.doc-links {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(19rem, 100%), 1fr));
}
.doc-link {
  display: block;
  text-decoration: none;
  padding: 1.5rem;
  border: 1px solid var(--ink-line);
  border-radius: 3px;
  transition: border-color .18s ease, background-color .18s ease;
}
.doc-link:hover { border-color: rgba(194,125,32,.5); background: rgba(194,125,32,.05); }
.doc-link h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.0625rem;
  margin: 0 0 .55rem;
}
.doc-link p { margin: 0 0 1rem; color: var(--bone-dim); font-size: .9375rem; }
.doc-link .cue {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

/* --------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--ink-line);
  padding-block: 2.5rem 3.5rem;
  font-size: .8125rem;
  line-height: 1.6;
}
.landing .site-footer { color: var(--bone-dim); }
.riot-disclaimer { margin: 0; }

/* ----------------------------------------------------------- DOCUMENTI */

.doc {
  background: var(--paper);
  color: var(--paper-text);
}
.doc .site-header { border-bottom: 1px solid var(--paper-rule); }
.doc .brand { color: var(--paper-text); }
.doc .site-nav a { color: var(--paper-dim); }
.doc .site-footer { border-top-color: var(--paper-rule); color: var(--paper-dim); }

.doc-body {
  width: min(var(--measure), 100% - var(--gutter) * 2);
  margin-inline: auto;
  padding-block: clamp(2.5rem, 6vh, 4rem) clamp(3rem, 8vh, 5rem);
  font-family: var(--read);
  font-size: 1.0625rem;
  line-height: 1.72;
}

.doc-body h1 {
  font-family: var(--display);
  font-weight: 700;
  font-variation-settings: "wdth" 108;
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: 0 0 1.5rem;
  text-wrap: balance;
}
.doc-body h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3125rem;
  line-height: 1.25;
  letter-spacing: -.005em;
  margin: 3.25rem 0 1rem;
  padding-top: 1.25rem;
  border-top: 2px solid var(--gold);
}
.doc-body h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.0625rem;
  margin: 2.25rem 0 .75rem;
}
.doc-body p { margin: 0 0 1.15rem; }
.doc-body ul { margin: 0 0 1.4rem; padding-left: 1.15rem; }
.doc-body li { margin-bottom: .5rem; }
.doc-body li::marker { color: var(--gold); }
.doc-body hr { display: none; }
.doc-body strong { font-weight: 600; }
.doc-body a { color: inherit; text-decoration-color: var(--gold); text-underline-offset: .15em; }
.doc-body code {
  font-family: var(--mono);
  font-size: .875em;
  padding: .1em .35em;
  border-radius: 2px;
  background: rgba(194,125,32,.10);
}

.table-scroll { overflow-x: auto; margin: 0 0 1.6rem; }
.doc-body table {
  border-collapse: collapse;
  width: 100%;
  font-family: var(--body);
  font-size: .875rem;
  line-height: 1.5;
}
.doc-body th, .doc-body td {
  text-align: left;
  vertical-align: top;
  padding: .7rem .9rem .7rem 0;
  border-bottom: 1px solid var(--paper-rule);
}
.doc-body th {
  font-weight: 600;
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--paper-dim);
  border-bottom-width: 2px;
}
.doc-body tbody tr:last-child td { border-bottom: none; }

.doc-notice {
  margin: 0 0 2rem;
  padding: .85rem 1rem;
  border-left: 2px solid var(--gold);
  background: rgba(194,125,32,.07);
  font-family: var(--body);
  font-size: .875rem;
  color: var(--paper-dim);
}

/* i documenti seguono il tema di sistema: leggerli è il loro mestiere */
@media (prefers-color-scheme: dark) {
  .doc {
    --paper:      #101317;
    --paper-text: #DFDCD6;
    --paper-dim:  #8A8D95;
    --paper-rule: #262A31;
  }
  .doc-body code { background: rgba(194,125,32,.16); }
  .doc-notice { background: rgba(194,125,32,.10); }
}

/* ------------------------------------------------------------ movimento */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .plate::before { transform: scaleX(1); }
  .plate-code { opacity: 1; }
  .bracket-run { stroke-dashoffset: 0; }
  .bracket-crown { opacity: 1; transform: none; }
}