/* 4devs.eu - base: reset, design tokens, typography, buttons, top bar, hero */

/* ============================================================
   4DEVS.EU  ·  design tokens
   ============================================================ */
:root{
  --ink:        #12262B;
  --ink-2:      #1B383F;
  --ink-3:      #27494F;
  --plaster:    #E7E5DD;
  --paper:      #F7F6F2;
  --sea:        #0F5C74;
  --sea-lift:   #17758F;
  --sun:        #E0A526;
  --credit:     #E6B444;
  --debit:      #E58A6F;
  --muted:      #5C6E72;
  --muted-dark: #9DB0B3;
  --rule:       rgba(18,38,43,.15);
  --rule-strong:rgba(18,38,43,.32);
  --rule-dark:  rgba(231,229,221,.16);

  --display: 'Commissioner', system-ui, sans-serif;
  --serif:   'Literata', Georgia, serif;
  --mono:    'JetBrains Mono', ui-monospace, monospace;

  --gut: clamp(20px, 5vw, 56px);
  --band: clamp(64px, 8vw, 116px);
}

*{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior: smooth;
  overflow-x:clip;
}
body{
  overflow-x:clip;
  margin:0;
  background:var(--plaster);
  color:var(--ink);
  font-family:var(--display);
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
::selection{background:var(--sun);color:var(--ink)}

.wrap{max-width:1240px;margin:0 auto;padding-inline:var(--gut)}
.wrap-narrow{max-width:880px;margin:0 auto;padding-inline:var(--gut)}

h1,h2,h3,h4{font-family:var(--display);margin:0;font-weight:700;letter-spacing:-.025em;line-height:1.03}
h1{font-size:clamp(2.5rem,5.6vw,4.35rem);font-weight:750;letter-spacing:-.038em;line-height:.99}
h2{font-size:clamp(1.9rem,3.6vw,3rem);letter-spacing:-.032em}
h3{font-size:clamp(1.15rem,1.7vw,1.42rem);letter-spacing:-.02em}
p{margin:0}

.prose{font-family:var(--serif);font-size:1.03rem;line-height:1.68;color:#2B4348}
.prose-lg{font-family:var(--serif);font-size:clamp(1.06rem,1.5vw,1.24rem);line-height:1.62;color:#2B4348}
.on-ink .prose,.on-ink .prose-lg{color:#C6D5D6}

.eyebrow{
  text-transform:uppercase;color:var(--sea);
  display:flex;align-items:center;
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;flex:none}
.on-ink .eyebrow{color:var(--sun)}

.tnum{font-variant-numeric:tabular-nums}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--display);font-weight:600;font-size:.94rem;letter-spacing:-.01em;
  padding:13px 22px;border-radius:6px;border:1px solid transparent;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:opacity .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover{opacity:.94}
.btn:active{opacity:.8}

.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--ink-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--rule-strong)}
.btn-flash-ok{background:var(--sea) !important;color:#fff !important;border-color:var(--sea) !important;transition:background-color .15s ease,color .15s ease,border-color .15s ease}
.btn-ghost:hover{background:rgba(18,38,43,.05);border-color:var(--rule-strong)}
.on-ink .btn-primary{background:var(--sun);color:var(--ink)}
.on-ink .btn-primary:hover{background:#EDC459}
.on-ink .btn-ghost{color:var(--plaster);border-color:var(--rule-dark)}
.on-ink .btn-ghost:hover{background:rgba(231,229,221,.06)}
.btn-block{width:100%}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--sea);outline-offset:3px;border-radius:3px;
}
.on-ink a:focus-visible,.on-ink button:focus-visible,.on-ink input:focus-visible,.on-ink select:focus-visible{outline-color:var(--sun)}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(231,229,221,.55);backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);
  border-bottom:1px solid var(--rule);
  transition:background .35s ease, border-color .35s ease;
}
.topbar.on-dark{
  background:rgba(18,38,43,.55);backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);
  border-bottom-color:rgba(255,255,255,.08);
}
.topbar.on-dark .mark,.topbar.on-dark .nav a,.topbar.on-dark .nav .nav-link-btn{color:var(--paper)}
.topbar.on-dark .mark b{color:var(--sun)}
.topbar.on-dark .mark-dot{background:var(--sun)}
.topbar.on-dark .nav a:hover,.topbar.on-dark .nav .nav-link-btn:hover{color:var(--sun)}
.topbar.on-dark .lang-toggle{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.06)}
.topbar.on-dark .lang-opt{color:rgba(231,229,221,.7)}
.topbar.on-dark .menu-btn{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.25);color:var(--paper)}
.verified-banner{
  position:sticky;top:0;z-index:59;text-align:center;
  background:var(--ink);color:var(--paper);font-family:var(--display);font-weight:600;font-size:.85rem;
  padding:10px var(--gut);
}
.topbar-in{display:flex;align-items:center;gap:24px;height:62px}
.mark{font-family:var(--mono);font-weight:700;font-size:.95rem;letter-spacing:-.02em;text-decoration:none;display:flex;align-items:center;gap:8px}
.mark b{color:var(--sea);transition:color .3s ease}
.mark-dot{width:7px;height:7px;border-radius:50%;background:var(--sea);display:inline-block;transition:background .3s ease}
.nav{display:flex;gap:26px;margin-left:14px}
.nav a{font-size:.9rem;font-weight:500;text-decoration:none;color:#31494E;padding:4px 0}
.nav a:hover{color:var(--sea)}
.nav .nav-link-btn{appearance:none;background:none;border:none;font-family:inherit;cursor:pointer;
  font-size:.9rem;font-weight:500;color:#31494E;padding:4px 0;line-height:inherit}
.nav .nav-link-btn:hover{color:var(--sea)}
.topbar-end{margin-left:auto;display:flex;align-items:center;gap:16px}

.lang-toggle{
  position:relative;display:inline-flex;align-items:center;height:32px;padding:2px;
  border:1px solid var(--rule-strong);border-radius:100px;background:var(--paper);
}
.lang-toggle-thumb{
  position:absolute;top:2px;left:2px;width:calc(50% - 2px);height:calc(100% - 4px);
  background:var(--ink);border-radius:100px;
  box-shadow:0 1px 3px rgba(18,38,43,.15);
  transition:transform .28s cubic-bezier(.2,.8,.2,1);z-index:0;
}
.lang-toggle.pos-1 .lang-toggle-thumb{transform:translateX(100%)}
.lang-opt{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:center;
  width:36px;height:100%;text-decoration:none;font-family:var(--display);font-weight:600;
  font-size:.74rem;letter-spacing:.05em;color:var(--muted);transition:color .2s ease;
}
.lang-opt:hover{color:var(--ink)}
.lang-opt[aria-current="page"]{color:var(--paper)}

.menu-btn{
  display:none;align-items:center;justify-content:center;width:34px;height:34px;
  background:var(--paper);border:1px solid var(--rule-strong);border-radius:100px;
  color:var(--ink);cursor:pointer;transition:background-color .2s ease, opacity .2s ease;
}
.menu-btn:hover{background:rgba(18,38,43,.05)}
.menu-icon{transition:transform .25s cubic-bezier(.2,.8,.2,1)}
.topbar.open .menu-icon{transform:rotate(90deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding-top:clamp(48px,6vw,84px);padding-bottom:clamp(48px,6vw,80px);
  border-bottom:1px solid var(--rule);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(to bottom, transparent 0 31px, rgba(18,38,43,.055) 31px 32px);
  -webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.9), transparent 78%);
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.9), transparent 78%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,4.5vw,64px);align-items:start}
.hero h1{margin:0;max-width:15ch}

.hero h1 em {
  font-style: normal;
  color: var(--ink);
  position: relative;
  display: inline-block;
  white-space: nowrap;
  z-index: 1;
}
.hero h1 em::after {
  content: "";
  position: absolute;
  left: -5px;
  right: -5px;
  top: 4%;
  bottom: 4%;
  background: var(--sun);
  opacity: 0.85;
  border-radius: 4px;
  z-index: -1;
  transform: rotate(-1.2deg);
}

.hero-deck{margin-top:22px;max-width:52ch}
.hero-form{margin-top:30px;max-width:520px;width:100%;box-sizing:border-box}
.field-row{display:flex;gap:10px;max-width:100%}
.field-row .btn{flex:none;min-width:0}
.input{
  flex:1;min-width:0;font-family:var(--display);font-size:.95rem;color:var(--ink);
  background:var(--paper);border:1px solid var(--rule-strong);border-radius:6px;padding:13px 15px;
}
.input::placeholder{color:#8B9B9E}
.input:focus{border-color:var(--sea);outline:none;box-shadow:0 0 0 3px rgba(15,92,116,.14)}
.gh-btn{margin-top:9px;width:100%;max-width:100%;box-sizing:border-box;background:var(--paper);border:1px solid var(--rule-strong);color:var(--ink);transition:opacity .2s ease, background-color .2s ease;white-space:normal;text-align:center;height:auto;min-height:44px;overflow-wrap:break-word}
.gh-btn-label{white-space:normal;overflow-wrap:break-word;word-break:break-word}
.gh-btn:hover{opacity:1;background:#FBFAF7}
.microcopy{margin-top:14px;font-family:var(--mono);font-size:.72rem;line-height:1.7;color:var(--muted)}
.hero-editors{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px}
.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}
.logo-chip{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:34px;border-radius:8px;border:1px solid var(--rule-strong);
  background:var(--paper);color:#34494E;text-decoration:none;cursor:pointer;
  transition:opacity .2s ease, background-color .2s ease, border-color .2s ease;
}
.logo-chip:hover{background:rgba(18,38,43,.045);border-color:rgba(18,38,43,.5)}
.logo-chip svg{fill:currentColor}
.logo-chip.off{filter:grayscale(1);opacity:.42;cursor:default}