/* Q4 media AG // tool library — Shared Stylesheet
   Siehe STYLEGUIDE.md für Regeln & Tokens. */

:root{
  --c-accent:       #059669;
  --c-accent-dark:  #047857;
  --c-accent-light: #10b981;
  --c-accent-bg:    #ecfdf5;

  --c-text:         #0f172a;
  --c-muted:        #475569;

  --c-bg:           #f8fafc;
  --c-panel:        #ffffff;
  --c-panel-2:      #f1f5f9;
  --c-border:       #e2e8f0;

  --c-danger:       #ef4444;
  --c-danger-light: #f87171;
  --c-ok:           #10b981;

  --r-sm: 10px;
  --r-md: 16px;
  --r-pill: 999px;

  --sh-card: 0 10px 30px rgba(0,0,0,.08);
  --sh-hover: 0 14px 40px rgba(5,150,105,.18);
}

@media (prefers-color-scheme: dark){
  :root{
    --c-text:    #e2e8f0;
    --c-muted:   #94a3b8;
    --c-bg:      #0f172a;
    --c-panel:   #1e293b;
    --c-panel-2: #334155;
    --c-border:  #334155;
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--c-text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(5,150,105,.18), transparent 60%),
    radial-gradient(900px 500px at 110% 10%, rgba(16,185,129,.12), transparent 60%),
    var(--c-bg);
  min-height:100vh;
  display:flex; flex-direction:column;
  line-height: 1.55;
}
a{ color: var(--c-accent); text-decoration:none; }
a:hover{ color: var(--c-accent-dark); text-decoration:underline; }

/* Header */
.site-header{
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding: clamp(.6rem, 2vw, 1rem) clamp(.8rem, 3vw, 1.5rem);
  border-bottom:1px solid var(--c-border);
  background: color-mix(in oklab, var(--c-panel) 75%, transparent);
  backdrop-filter: blur(10px);
  position: sticky; top:0; z-index:50;
}
.brand{ display:flex; align-items:center; gap:.6rem; font-weight:600; font-size:1rem; color: var(--c-text); }
.brand-mark{
  width:30px; height:30px; border-radius:8px;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-light));
  display:inline-flex; align-items:center; justify-content:center;
  color:#fff; font-weight:700; font-size:.85rem; letter-spacing:.02em;
  box-shadow: 0 4px 12px rgba(5,150,105,.35);
}
.brand small{ color: var(--c-muted); font-weight:400; margin-left:.4rem; }
.header-right{ display:flex; align-items:center; gap:.8rem; font-size:.9rem; color: var(--c-muted); }
.header-right a{ color: var(--c-muted); }
.header-right a:hover{ color: var(--c-accent); }

/* Main */
main{
  flex:1; width:100%;
  max-width: 1100px; margin: 0 auto;
  padding: clamp(.8rem, 3vw, 1.5rem);
}

/* Page header */
.page-head{ margin: .5rem 0 1.5rem; }
.page-head h1{ margin:0 0 .35rem; font-size: clamp(1.4rem, 2.4vw, 1.9rem); font-weight:600; letter-spacing: -.01em; }
.page-head p{ margin:0; color: var(--c-muted); }

/* Card */
.card{
  background: var(--c-panel);
  border:1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: clamp(.9rem, 2.5vw, 1.25rem);
  box-shadow: var(--sh-card);
}

/* Button */
.btn{
  border:0; border-radius: var(--r-pill); cursor:pointer;
  padding:.7rem 1.1rem; font-size:.95rem; font-weight:500;
  display:inline-flex; align-items:center; gap:.5rem;
  font-family: inherit;
  transition: transform .05s ease, background .2s, box-shadow .2s, color .2s;
}
.btn:active{ transform: scale(.97); }
.btn-primary{ background: var(--c-accent); color:#fff; box-shadow: 0 6px 16px rgba(5,150,105,.3); }
.btn-primary:hover{ background: var(--c-accent-dark); }
.btn-ghost{ background: var(--c-panel-2); color: var(--c-text); }
.btn-ghost:hover{ background: var(--c-border); }
.btn-danger{ background: var(--c-danger); color:#fff; }
.btn-danger:hover{ background: var(--c-danger-light); }

/* Input */
.input, input[type=text], input[type=password], input[type=email], textarea, select{
  background: var(--c-panel-2); color: var(--c-text);
  border:1px solid var(--c-border); border-radius: var(--r-sm);
  padding:.7rem 1rem; font-size: 1rem; font-family: inherit;
  outline:none; transition: border-color .15s;
  width:100%;
}
.input:focus, input:focus, textarea:focus, select:focus{ border-color: var(--c-accent); }

/* Tool Grid */
.tool-grid{
  display:grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.tool-card{
  display:flex; flex-direction:column; gap:.6rem;
  background: var(--c-panel);
  border:1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 1.2rem;
  text-decoration:none; color: var(--c-text);
  transition: transform .15s, box-shadow .15s, border-color .15s;
  min-height: 160px;
  position:relative; overflow:hidden;
}
.tool-card:hover{
  transform: translateY(-3px);
  box-shadow: var(--sh-hover);
  border-color: var(--c-accent);
  text-decoration:none; color: var(--c-text);
}
.tool-card .icon{
  width:48px; height:48px; border-radius: 12px;
  background: var(--c-accent-bg);
  color: var(--c-accent);
  display:inline-flex; align-items:center; justify-content:center;
}
@media (prefers-color-scheme: dark){
  .tool-card .icon{ background: rgba(5,150,105,.15); }
}
.tool-card h3{ margin:.2rem 0 0; font-size:1.05rem; font-weight:600; }
.tool-card p{ margin:0; font-size:.9rem; color: var(--c-muted); flex:1; }
.tool-card .tag{
  align-self:flex-start;
  font-size:.72rem; text-transform:uppercase; letter-spacing:.04em;
  color: var(--c-accent); background: var(--c-accent-bg);
  padding:.2rem .55rem; border-radius: var(--r-pill);
}
@media (prefers-color-scheme: dark){
  .tool-card .tag{ background: rgba(5,150,105,.15); }
}
.tool-card.disabled{ opacity:.55; pointer-events:none; }

/* Footer */
.site-footer{
  padding: 1.2rem clamp(.8rem, 3vw, 1.5rem);
  border-top:1px solid var(--c-border);
  color: var(--c-muted); font-size:.85rem;
  text-align:center;
}

/* Login */
.login-wrap{
  flex:1; display:flex; align-items:center; justify-content:center;
  padding: 1.5rem;
}
.login-card{
  width: 100%; max-width: 380px;
  background: var(--c-panel);
  border:1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 1.75rem;
  box-shadow: var(--sh-card);
}
.login-card h1{ margin:0 0 .3rem; font-size:1.3rem; }
.login-card p.sub{ margin:0 0 1.2rem; color: var(--c-muted); font-size:.9rem; }
.field{ margin-bottom: .9rem; }
.field label{ display:block; margin-bottom:.3rem; font-size:.85rem; color: var(--c-muted); }
.login-card .btn{ width:100%; justify-content:center; }
.alert{
  padding:.7rem .9rem; border-radius: var(--r-sm);
  background: rgba(239,68,68,.12); color: var(--c-danger);
  font-size:.9rem; margin-bottom: 1rem;
  border:1px solid rgba(239,68,68,.25);
}