/* ============================================================
   DevExpo 2026 — Check-in / Inscription
   Aesthetic: editorial-tech. Near-black ink, engineered grid,
   single acid accent, monospace utility type. Built to read as
   studio-made, not template-made.
   ============================================================ */

:root{
  --ink:        #0a0b0d;
  --ink-2:      #0f1115;
  --surface:    rgba(20, 22, 28, 0.72);
  --surface-2:  rgba(28, 31, 38, 0.66);
  --line:       rgba(255, 255, 255, 0.085);
  --line-2:     rgba(255, 255, 255, 0.15);
  --text:       #ecedee;
  --text-dim:   #b6bac0;
  --muted:      #7e848d;
  --acid:       #c6f24e;
  --acid-deep:  #a6d827;
  --cyan:       #61e7e0;
  --danger:     #ff6b5e;
  --radius:     14px;
  --radius-sm:  10px;
  --maxw:       940px;

  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body:    "Hanken Grotesk", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }

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

body{
  font-family:var(--font-body);
  background:var(--ink);
  color:var(--text);
  line-height:1.55;
  font-size:16px;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* ---- Atmospheric background: grid + glows + grain --------- */
.bg{
  position:fixed; inset:0; z-index:-2; background:var(--ink);
  background-image:
    radial-gradient(900px 600px at 12% -8%, rgba(198,242,78,0.10), transparent 60%),
    radial-gradient(800px 700px at 100% 110%, rgba(97,231,224,0.07), transparent 55%);
}
.bg::before{ /* engineered grid */
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
.bg::after{ /* grain */
  content:""; position:absolute; inset:0; opacity:0.5; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

/* ---------------- Shell -------------------------------------- */
.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 clamp(20px,5vw,40px); }

/* ---- Top bar ------------------------------------------------ */
.topbar{
  position:sticky; top:0; z-index:20;
  backdrop-filter:saturate(140%) blur(12px);
  -webkit-backdrop-filter:saturate(140%) blur(12px);
  background:rgba(10,11,13,0.66);
  border-bottom:1px solid var(--line);
}
.topbar .wrap{ display:flex; align-items:center; justify-content:space-between; height:62px; }
.brand{ display:flex; align-items:baseline; gap:10px; text-decoration:none; color:var(--text); }
.brand b{ font-family:var(--font-display); font-weight:800; letter-spacing:-.02em; font-size:19px; }
.brand .yr{ font-family:var(--font-mono); font-size:12px; color:var(--acid); letter-spacing:.05em; }
.topbar .meta{ font-family:var(--font-mono); font-size:11.5px; color:var(--muted); letter-spacing:.08em; text-transform:uppercase; }
.topbar .meta b{ color:var(--text-dim); font-weight:500; }

/* ---- Hero --------------------------------------------------- */
.hero{ padding:clamp(48px,9vh,92px) 0 28px; }
.eyebrow{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--acid); display:inline-flex; gap:9px; align-items:center;
}
.eyebrow::before{ content:""; width:26px; height:1px; background:var(--acid); display:inline-block; }
h1.title{
  font-family:var(--font-display); font-weight:800; letter-spacing:-.035em;
  font-size:clamp(38px,6.4vw,68px); line-height:0.98; margin:18px 0 0;
  max-width:14ch;
}
h1.title em{ font-style:normal; color:var(--acid); }
.lede{ color:var(--text-dim); font-size:clamp(15px,1.6vw,18px); max-width:48ch; margin-top:20px; }

/* ---- Step heading ------------------------------------------ */
.step{ display:flex; align-items:center; gap:14px; margin:54px 0 22px; }
.step .num{
  font-family:var(--font-mono); font-size:12px; color:var(--ink); background:var(--acid);
  padding:3px 9px; border-radius:999px; letter-spacing:.04em; font-weight:700;
}
.step h2{ font-family:var(--font-display); font-weight:700; font-size:clamp(20px,2.6vw,26px); letter-spacing:-.02em; }
.step .hint{ font-family:var(--font-mono); font-size:11.5px; color:var(--muted); margin-left:auto; letter-spacing:.05em; }

/* ---- Type cards (editorial list) --------------------------- */
.types{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
@media(max-width:680px){ .types{ grid-template-columns:1fr; } }
.type{
  position:relative; display:flex; align-items:flex-start; gap:16px;
  padding:20px 20px 20px 18px; border:1px solid var(--line);
  border-radius:var(--radius); background:var(--surface);
  cursor:pointer; text-decoration:none; color:inherit;
  transition:border-color .18s ease, transform .18s ease, background .18s ease;
  isolation:isolate; overflow:hidden;
}
.type::after{ /* corner arrow */
  content:"↗"; position:absolute; top:16px; right:18px; color:var(--muted);
  font-size:15px; transition:color .18s ease, transform .18s ease;
}
.type:hover{ transform:translateY(-2px); border-color:var(--line-2); background:var(--surface-2); }
.type:hover::after{ color:var(--acid); transform:translate(2px,-2px); }
.type .idx{
  font-family:var(--font-mono); font-size:12px; color:var(--muted);
  border:1px solid var(--line); border-radius:8px; padding:6px 9px; line-height:1;
  margin-top:2px; min-width:34px; text-align:center; transition:all .18s ease;
}
.type .body h3{ font-family:var(--font-display); font-weight:700; font-size:18px; letter-spacing:-.01em; }
.type .body p{ font-size:13px; color:var(--muted); margin-top:3px; }
.type.is-selected{ border-color:var(--acid); background:rgba(198,242,78,0.055); }
.type.is-selected .idx{ background:var(--acid); color:var(--ink); border-color:var(--acid); font-weight:700; }
.type.is-selected::after{ content:"✓"; color:var(--acid); }
/* dev card flag */
.type .tag{
  display:inline-block; margin-top:9px; font-family:var(--font-mono); font-size:10.5px;
  letter-spacing:.06em; color:var(--cyan); border:1px solid rgba(97,231,224,0.4);
  border-radius:999px; padding:3px 9px;
}
.type.dev{ border-color:rgba(97,231,224,0.28); }
.type.dev:hover{ border-color:rgba(97,231,224,0.6); }
.type.dev::after{ color:var(--cyan); }

/* ---- Form panel -------------------------------------------- */
.panel{
  border:1px solid var(--line); border-radius:var(--radius);
  background:var(--surface); padding:clamp(22px,3.5vw,34px);
  backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
}
.panel + .panel{ margin-top:16px; }
.panel-head{ display:flex; align-items:baseline; gap:12px; margin-bottom:22px; padding-bottom:16px; border-bottom:1px solid var(--line); }
.panel-head .k{ font-family:var(--font-mono); font-size:11px; color:var(--acid); letter-spacing:.1em; }
.panel-head h3{ font-family:var(--font-display); font-weight:700; font-size:18px; letter-spacing:-.01em; }

.field{ margin-bottom:20px; }
.field:last-child{ margin-bottom:0; }
.field > label, .field > .lbl{
  display:block; font-family:var(--font-mono); font-size:11.5px; letter-spacing:.05em;
  text-transform:uppercase; color:var(--text-dim); margin-bottom:9px;
}
.field .req{ color:var(--acid); }
.field .opt{ color:var(--muted); text-transform:none; letter-spacing:0; }

.row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media(max-width:600px){ .row{ grid-template-columns:1fr; } }

input[type=text], input[type=tel], input[type=email], textarea, select{
  width:100%; font-family:var(--font-body); font-size:15.5px; color:var(--text);
  background:var(--ink-2); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:13px 14px; transition:border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
textarea{ resize:vertical; min-height:84px; }
input::placeholder, textarea::placeholder{ color:#5a6068; }
input:focus, textarea:focus, select:focus{
  outline:none; border-color:var(--acid);
  box-shadow:0 0 0 3px rgba(198,242,78,0.16); background:#0c0e12;
}
select{
  appearance:none; -webkit-appearance:none; cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237e848d' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 14px center; padding-right:38px;
}

/* ---- Chips (segmented single + multi) ---------------------- */
.chips{ display:flex; flex-wrap:wrap; gap:9px; }
.chip{
  position:relative; cursor:pointer; user-select:none;
  font-family:var(--font-body); font-size:14px; color:var(--text-dim);
  background:var(--ink-2); border:1px solid var(--line); border-radius:999px;
  padding:9px 15px; transition:all .15s ease;
}
.chip input{ position:absolute; opacity:0; pointer-events:none; }
.chip:hover{ border-color:var(--line-2); color:var(--text); }
.chip:has(input:checked){
  background:var(--acid); border-color:var(--acid); color:var(--ink); font-weight:600;
}
.chip:has(input:focus-visible){ box-shadow:0 0 0 3px rgba(198,242,78,0.22); }
/* mono variant for skills */
.chips.mono .chip{ font-family:var(--font-mono); font-size:12.5px; letter-spacing:.01em; padding:8px 13px; }

/* "Autre" reveal field */
.other-field{ display:none; margin-top:11px; }
.other-field.show{ display:block; animation:slideDown .2s ease; }

/* ---- Submit / buttons -------------------------------------- */
.actions{ margin-top:28px; display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
.btn{
  font-family:var(--font-display); font-weight:700; font-size:16px; letter-spacing:-.01em;
  background:var(--acid); color:var(--ink); border:none; border-radius:999px;
  padding:14px 28px; cursor:pointer; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  display:inline-flex; align-items:center; gap:10px;
}
.btn:hover{ background:var(--acid-deep); transform:translateY(-1px); box-shadow:0 8px 30px -10px rgba(198,242,78,0.5); }
.btn:active{ transform:translateY(0); }
.btn .arr{ font-family:var(--font-mono); font-weight:400; }
.btn.ghost{ background:transparent; color:var(--text-dim); border:1px solid var(--line); }
.btn.ghost:hover{ background:var(--surface-2); color:var(--text); box-shadow:none; }
.note{ font-family:var(--font-mono); font-size:11px; color:var(--muted); letter-spacing:.03em; }

/* hidden form, revealed on type select */
#participant-form[hidden]{ display:none; }
.reveal{ animation:slideUp .35s cubic-bezier(.2,.7,.2,1) both; }

/* ---- Thank-you / ticket ------------------------------------ */
.merci{ padding:clamp(60px,12vh,120px) 0; text-align:center; }
.merci .seal{
  width:74px; height:74px; border-radius:50%; margin:0 auto 26px;
  display:grid; place-items:center; background:rgba(198,242,78,0.1);
  border:1px solid var(--acid); color:var(--acid); font-size:32px;
}
.merci h1{ font-family:var(--font-display); font-weight:800; font-size:clamp(30px,5vw,46px); letter-spacing:-.03em; }
.merci p{ color:var(--text-dim); max-width:42ch; margin:16px auto 0; }
.ticket{
  margin:34px auto 0; max-width:380px; border:1px dashed var(--line-2); border-radius:var(--radius);
  background:var(--surface); padding:20px 22px; text-align:left; font-family:var(--font-mono);
  font-size:12.5px; color:var(--text-dim);
}
.ticket .tline{ display:flex; justify-content:space-between; padding:6px 0; border-bottom:1px dotted var(--line); }
.ticket .tline:last-child{ border-bottom:none; }
.ticket .tline span:first-child{ color:var(--muted); letter-spacing:.06em; text-transform:uppercase; font-size:10.5px; }
.ticket .tline span:last-child{ color:var(--text); }

/* ---- Footer ------------------------------------------------- */
footer{ border-top:1px solid var(--line); margin-top:72px; padding:30px 0 56px; }
footer .wrap{ display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.powered{ display:flex; align-items:flex-start; }
.powered-link{
  display:inline-flex; flex-direction:column; gap:7px;
  text-decoration:none; width:fit-content;
}
.powered-link:hover .pw-text{ color:var(--text); }
.powered .pw-text{ font-family:var(--font-mono); font-size:11.5px; color:var(--muted); letter-spacing:.04em; transition:color .15s ease; }
.powered .pw-text b{ color:var(--text-dim); font-weight:500; }
.powered-img{ width:100%; height:auto; opacity:.88; border-radius:4px; display:block; }
footer .fmeta{ font-family:var(--font-mono); font-size:11px; color:var(--muted); letter-spacing:.05em; text-align:right; }
footer .fmeta a{ color:var(--text-dim); text-decoration:none; }
footer .fmeta a:hover{ color:var(--acid); }

/* ---- Flash / errors ---------------------------------------- */
.flash{
  border:1px solid var(--danger); background:rgba(255,107,94,0.08); color:#ffb3ac;
  border-radius:var(--radius-sm); padding:12px 15px; font-size:14px; margin-bottom:20px;
  font-family:var(--font-mono); font-size:13px;
}

/* ---- Admin table ------------------------------------------- */
.adminbar{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px; margin:30px 0 18px; }
.stat{ font-family:var(--font-mono); font-size:13px; color:var(--text-dim); }
.stat b{ color:var(--acid); }
.tablewrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); }
table{ border-collapse:collapse; width:100%; font-size:13px; }
th,td{ text-align:left; padding:11px 14px; border-bottom:1px solid var(--line); white-space:nowrap; }
th{ font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); background:var(--ink-2); }
td{ color:var(--text-dim); }
tr:hover td{ background:rgba(255,255,255,0.02); }

/* ---- Animations -------------------------------------------- */
@keyframes slideUp{ from{ opacity:0; transform:translateY(16px); } to{ opacity:1; transform:translateY(0); } }
@keyframes slideDown{ from{ opacity:0; transform:translateY(-6px); } to{ opacity:1; transform:translateY(0); } }
.stagger > *{ animation:slideUp .5s cubic-bezier(.2,.7,.2,1) both; }
.stagger > *:nth-child(1){ animation-delay:.02s; }
.stagger > *:nth-child(2){ animation-delay:.08s; }
.stagger > *:nth-child(3){ animation-delay:.14s; }
.stagger > *:nth-child(4){ animation-delay:.20s; }

@media(prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto; }
}