/* ── PhysiQ Rechner-Styles (ergänzt /styles.css) ─────────────────────────────── */

.bc { font-size: 13px; color: var(--text-3); padding: 16px 0 0; }
.bc a { color: var(--text-2); }
.bc a:hover { color: var(--text); }

.calc-head { text-align: center; padding: 24px 0 8px; }
.calc-head h1 { font-size: clamp(28px, 5vw, 40px); font-weight: 900; letter-spacing: -1px; margin-bottom: 12px; }
.calc-head h1 .grad { background: linear-gradient(120deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.calc-head p { color: var(--text-2); font-size: 16px; max-width: 560px; margin: 0 auto; }

/* Rechner-Box */
.calc-box {
  max-width: 560px; margin: 28px auto 0;
  background: linear-gradient(160deg, var(--surface2), var(--surface));
  border: 1px solid var(--border2); border-radius: 24px;
  padding: clamp(16px, 4.5vw, 24px);
}
.calc-field { margin-bottom: 16px; }
.calc-field label { display: block; font-size: 13px; font-weight: 700; color: var(--text-2); margin-bottom: 7px; }
.calc-field input, .calc-field select {
  width: 100%; background: var(--bg); border: 1px solid var(--border2); border-radius: 12px;
  padding: 13px 15px; color: var(--text); font-size: 16px; outline: none; font-family: var(--font);
}
.calc-field input:focus, .calc-field select:focus { border-color: var(--primary-light); }
.calc-row { display: flex; gap: 12px; }
.calc-row .calc-field { flex: 1; }
.seg { display: flex; gap: 8px; }
.seg button {
  flex: 1; min-width: 0; padding: 12px 8px; border-radius: 12px; cursor: pointer; font-family: var(--font);
  background: var(--bg); border: 1.5px solid var(--border2); color: var(--text-2);
  font-size: 14px; font-weight: 700; transition: all .15s;
}
.seg button.on { background: var(--primary); border-color: var(--primary); color: #fff; }

.calc-btn {
  width: 100%; padding: 16px; border-radius: 14px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: 16px; font-weight: 800; font-family: var(--font); margin-top: 6px;
  box-shadow: 0 12px 28px rgba(124,58,237,.4);
}

/* Ergebnis */
.calc-result { margin-top: 20px; padding: clamp(14px, 4vw, 20px); border-radius: 16px; background: rgba(124,58,237,.10); border: 1px solid var(--border2); text-align: center; display: none; }
.calc-result.show { display: block; }
.calc-result .res-big { font-size: clamp(30px, 8vw, 40px); font-weight: 950; color: var(--primary-light); line-height: 1; }
.calc-result .res-label { font-size: 13px; color: var(--text-2); margin-top: 6px; font-weight: 600; }
.calc-result .res-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(6px, 2vw, 10px); margin-top: 16px; }
.calc-result .res-grid div { background: var(--surface); border-radius: 12px; padding: 12px 4px; min-width: 0; }
.calc-result .res-grid .v { font-size: clamp(12px, 3.3vw, 20px); font-weight: 900; color: var(--text); line-height: 1.2; white-space: nowrap; }
.calc-result .res-grid .l { font-size: clamp(10px, 2.6vw, 11px); color: var(--text-3); margin-top: 3px; line-height: 1.3; }
.calc-result .res-note { font-size: 12.5px; color: var(--text-2); margin-top: 14px; line-height: 1.5; }

/* Sehr schmale Geräte (≤360px): Kacheln & Eingaben untereinander statt gequetscht */
@media (max-width: 360px) {
  .calc-row { flex-direction: column; gap: 0; }
  .calc-result .res-grid { grid-template-columns: 1fr; gap: 8px; }
  .calc-result .res-grid div {
    display: flex; align-items: baseline; justify-content: space-between;
    gap: 12px; text-align: left; padding: 12px 14px;
  }
  .calc-result .res-grid .v { font-size: 17px; flex: 0 0 auto; }
  .calc-result .res-grid .l { margin-top: 0; font-size: 12px; text-align: right; }
}

/* mehrzeilige Segment-Buttons (z. B. Tempo-Auswahl) */
.seg button small { display: block; font-size: 11px; font-weight: 600; opacity: .8; margin-top: 2px; }
.seg.col4 { flex-wrap: wrap; }
.seg.col4 button { flex: 1 1 calc(50% - 4px); }

/* Listen-Ergebnis (mehrere Formeln untereinander) */
.res-list { margin-top: 16px; text-align: left; display: grid; gap: 8px; }
.res-list .row { display: flex; justify-content: space-between; align-items: center; background: var(--surface); border-radius: 10px; padding: 11px 14px; }
.res-list .row span { font-size: 13px; color: var(--text-2); }
.res-list .row b { font-size: 15px; font-weight: 800; color: var(--text); }

/* Content-Blöcke (Erklärung, Wissenschaft) */
.calc-content { max-width: 680px; margin: 48px auto 0; }
.calc-content h2 { font-size: 22px; font-weight: 800; margin: 32px 0 12px; letter-spacing: -.5px; }
.calc-content p { color: var(--text-2); font-size: 15px; line-height: 1.7; margin-bottom: 12px; }
.calc-content .sci { background: var(--surface); border-left: 3px solid var(--primary); border-radius: 0 12px 12px 0; padding: 14px 18px; }
.calc-content .sci p { margin: 0; font-size: 14px; }

/* Rechner-Grid (Übersicht) */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.tool-card {
  display: block; background: linear-gradient(160deg, var(--surface2), var(--surface));
  border: 1px solid var(--border); border-radius: 18px; padding: 22px;
  transition: transform .2s, border-color .2s;
}
.tool-card:hover { transform: translateY(-3px); border-color: var(--border2); }
.tool-card .t-icon { font-size: 28px; margin-bottom: 12px; }
.tool-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 6px; }
.tool-card p { font-size: 13px; color: var(--text-2); }
.tool-card.soon { opacity: .55; pointer-events: none; }
.tool-card .soon-tag { font-size: 10px; font-weight: 800; color: var(--text-3); text-transform: uppercase; letter-spacing: .5px; }