/* ── shared.css — itr.saschamerken.de ── */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=DM+Sans:wght@300;400;500&display=swap');

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

:root {
  --bg:           #fafaf8;
  --bg-2:         #f2f0eb;
  --bg-3:         #e8e5de;
  --text:         #1a1916;
  --text-2:       #6b6860;
  --text-3:       #9e9b95;
  --border:       rgba(0,0,0,0.10);
  --border-2:     rgba(0,0,0,0.20);

  --blue-bg:      #E6F1FB; --blue-text:    #0C447C; --blue-acc: #378ADD;
  --purple-bg:    #EEEDFE; --purple-text:  #3C3489; --purple-acc: #7F77DD;
  --green-bg:     #EAF3DE; --green-text:   #27500A; --green-acc: #639922;
  --amber-bg:     #FAEEDA; --amber-text:   #633806; --amber-acc: #BA7517;
  --coral-bg:     #FAECE7; --coral-text:   #712B13; --coral-acc: #D85A30;
  --teal-bg:      #E1F5EE; --teal-text:    #085041; --teal-acc:  #1D9E75;
  --pink-bg:      #FBEAF0; --pink-text:    #72243E; --pink-acc:  #D4537E;

  --radius:    10px;
  --radius-lg: 14px;
  --mono: 'DM Mono', monospace;
  --sans: 'DM Sans', sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:  #181816; --bg-2: #222220; --bg-3: #2c2c29;
    --text: #f0ede6; --text-2: #a09d96; --text-3: #6b6860;
    --border: rgba(255,255,255,0.09); --border-2: rgba(255,255,255,0.20);
    --blue-bg: #0C447C;   --blue-text: #B5D4F4;
    --purple-bg: #3C3489; --purple-text: #CECBF6;
    --green-bg: #27500A;  --green-text: #C0DD97;
    --amber-bg: #633806;  --amber-text: #FAC775;
    --coral-bg: #712B13;  --coral-text: #F5C4B3;
    --teal-bg:  #085041;  --teal-text:  #9FE1CB;
    --pink-bg:  #72243E;  --pink-text:  #F4C0D1;
  }
}

body {
  background: var(--bg); color: var(--text);
  font-family: var(--sans); min-height: 100vh;
}

/* ── Nav ── */
.topnav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem; height: 52px;
  border-bottom: 0.5px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 100;
}
.topnav-brand {
  font-family: var(--mono); font-size: 13px; font-weight: 500;
  color: var(--text); text-decoration: none; letter-spacing: 0.02em;
}
.topnav-brand span { color: var(--text-3); }
.topnav-back {
  font-family: var(--mono); font-size: 11px; color: var(--text-3);
  text-decoration: none; letter-spacing: 0.06em;
  padding: 4px 12px; border: 0.5px solid var(--border);
  border-radius: 999px; transition: all 0.15s;
}
.topnav-back:hover { border-color: var(--border-2); color: var(--text); }

/* ── Page wrapper ── */
.page { padding: 3rem 1.5rem 6rem; display: flex; flex-direction: column; align-items: center; }

/* ── Page header ── */
.page-header { text-align: center; margin-bottom: 3rem; }
.page-header .badge {
  display: inline-block; font-size: 9px; font-weight: 500;
  padding: 3px 10px; border-radius: 999px; letter-spacing: 0.1em;
  text-transform: uppercase; font-family: var(--mono); margin-bottom: 0.8rem;
}
.page-header h1 {
  font-size: 1.9rem; font-weight: 400; letter-spacing: -0.03em;
  font-family: var(--mono); margin-bottom: 0.3rem;
}
.page-header p { font-size: 13px; color: var(--text-3); }

/* ── Content width ── */
.content { width: 100%; max-width: 860px; }

/* ── Cards ── */
.card {
  background: var(--bg); border: 0.5px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.5rem;
}
.card + .card { margin-top: 14px; }
.card-title { font-size: 11px; color: var(--text-3); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1rem; }

/* ── Form elements ── */
label { font-size: 12px; color: var(--text-2); display: block; margin-bottom: 5px; }
input[type=text], input[type=number], select {
  width: 100%; background: var(--bg-2); border: 0.5px solid var(--border);
  border-radius: var(--radius); padding: 10px 12px;
  font-family: var(--mono); font-size: 15px; color: var(--text); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, select:focus { border-color: var(--border-2); box-shadow: 0 0 0 3px rgba(128,128,128,0.07); }
input.error { border-color: #E24B4A; }
.error-msg { font-size: 11px; color: #E24B4A; min-height: 14px; margin-top: 4px; }

input[type=range] {
  width: 100%; accent-color: var(--blue-acc);
  background: transparent; height: 20px; cursor: pointer;
}

/* ── Result chips ── */
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-top: 1rem; }
.result-chip { background: var(--bg-2); border-radius: var(--radius); padding: 12px 14px; }
.result-chip .rc-label { font-size: 10px; color: var(--text-3); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
.result-chip .rc-value { font-family: var(--mono); font-size: 16px; color: var(--text); word-break: break-all; }
.result-chip .rc-value.small { font-size: 13px; }
.result-chip.highlight { background: var(--blue-bg); }
.result-chip.highlight .rc-label { color: var(--blue-text); opacity: 0.7; }
.result-chip.highlight .rc-value { color: var(--blue-text); }

/* ── Separator ── */
hr.sep { border: none; border-top: 0.5px solid var(--border); margin: 1.5rem 0; }

/* ── Info box ── */
.info-box {
  background: var(--bg-2); border-radius: var(--radius); padding: 12px 14px;
  font-size: 12px; color: var(--text-2); line-height: 1.7; margin-top: 1rem;
}
.info-box code { font-family: var(--mono); font-size: 11px; background: var(--bg-3); padding: 1px 5px; border-radius: 4px; }

/* ── Footer (für Tool-Unterseiten) ── */
.page-footer {
  border-top: 0.5px solid var(--border); padding: 1.5rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 11px; color: var(--text-3); font-family: var(--mono);
  flex-wrap: wrap; gap: 10px; width: 100%;
}
.page-footer a { color: var(--text-3); text-decoration: none; transition: color 0.15s; }
.page-footer a:hover { color: var(--text); }

/* ── Presets row (shared across tools) ── */
.presets-row { display: flex; flex-wrap: wrap; gap: 6px; }
.preset-btn {
  font-family: var(--mono); font-size: 11px; padding: 4px 12px;
  border-radius: 6px; border: 0.5px solid var(--border);
  background: transparent; color: var(--text-2); cursor: pointer; transition: all 0.15s;
}
.preset-btn:hover { background: var(--bg-2); }

/* ── Responsive ── */
@media (max-width: 600px) {
  .topnav { padding: 0 1rem; }
  .page { padding: 2rem 1rem 5rem; }
  .page-header h1 { font-size: 1.4rem; }
}