/* ===== Coffee Table Size Calculator — designingidea.com ===== */

.ctsc {
  --ctsc-bg: #faf8f5;
  --ctsc-card: #ffffff;
  --ctsc-ink: #2b2825;
  --ctsc-muted: #6d6660;
  --ctsc-line: #e6ded3;
  --ctsc-accent: #8a6446;
  --ctsc-accent-soft: #f3ece3;
  --ctsc-radius: 10px;

  box-sizing: border-box;
  max-width: 760px;
  margin: 2em auto;
  padding: 1.75em;
  background: var(--ctsc-bg);
  border: 1px solid var(--ctsc-line);
  border-radius: var(--ctsc-radius);
  color: var(--ctsc-ink);
  font-family: inherit;
  line-height: 1.55;
  font-size: 16px;
}

.ctsc *,
.ctsc *::before,
.ctsc *::after { box-sizing: border-box; }

/* ---- Header ---- */

.ctsc__title {
  margin: 0 0 .4em;
  font-size: 1.45em;
  line-height: 1.25;
  color: var(--ctsc-ink);
}

.ctsc__intro {
  margin: 0;
  color: var(--ctsc-muted);
  font-size: .95em;
}

/* ---- Inputs ---- */

.ctsc__form {
  margin: 1.5em 0;
  padding: 1.25em;
  background: var(--ctsc-card);
  border: 1px solid var(--ctsc-line);
  border-radius: var(--ctsc-radius);
}

.ctsc__field + .ctsc__field {
  margin-top: 1.4em;
  padding-top: 1.4em;
  border-top: 1px solid var(--ctsc-line);
}

.ctsc__label {
  display: block;
  font-weight: 700;
  font-size: 1em;
  margin: 0 0 .15em;
}

.ctsc__hint {
  margin: 0 0 .7em;
  font-size: .85em;
  color: var(--ctsc-muted);
}

.ctsc__inputrow {
  display: flex;
  align-items: center;
  gap: 1em;
  flex-wrap: wrap;
}

.ctsc__numwrap {
  position: relative;
  flex: 0 0 auto;
  width: 108px;
}

.ctsc__num {
  width: 100%;
  padding: .55em 2.1em .55em .7em;
  font-size: 1.05em;
  font-family: inherit;
  font-variant-numeric: tabular-nums;
  color: var(--ctsc-ink);
  background: #fff;
  border: 1px solid #cfc5b8;
  border-radius: 6px;
  -moz-appearance: textfield;
  appearance: textfield;
}

.ctsc__num::-webkit-outer-spin-button,
.ctsc__num::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

.ctsc__num:focus {
  outline: 2px solid var(--ctsc-accent);
  outline-offset: 1px;
  border-color: var(--ctsc-accent);
}

.ctsc__unit {
  position: absolute;
  right: .7em;
  top: 50%;
  transform: translateY(-50%);
  font-size: .85em;
  color: var(--ctsc-muted);
  pointer-events: none;
}

.ctsc__range {
  flex: 1 1 180px;
  min-width: 150px;
  height: 22px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.ctsc__range:focus { outline: none; }
.ctsc__range:focus-visible { outline: 2px solid var(--ctsc-accent); outline-offset: 4px; border-radius: 4px; }

.ctsc__range::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 3px;
  background: var(--ctsc-line);
}
.ctsc__range::-moz-range-track {
  height: 5px;
  border-radius: 3px;
  background: var(--ctsc-line);
}
.ctsc__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  margin-top: -7.5px;
  border-radius: 50%;
  background: var(--ctsc-accent);
  border: 3px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.25);
}
.ctsc__range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--ctsc-accent);
  border: 3px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.25);
}

.ctsc__error {
  margin: 1em 0 0;
  padding: .6em .8em;
  font-size: .88em;
  color: #8a3a2c;
  background: #fbeeea;
  border-left: 3px solid #b5503c;
  border-radius: 4px;
}

/* ---- Results ---- */

.ctsc__resultslead {
  margin: 0 0 .9em;
  font-size: .98em;
  color: var(--ctsc-muted);
}
.ctsc__resultslead strong { color: var(--ctsc-ink); }

.ctsc__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .85em;
}

.ctsc__card {
  display: flex;
  flex-direction: column;
  padding: 1.05em .95em;
  background: var(--ctsc-card);
  border: 1px solid var(--ctsc-line);
  border-top: 3px solid var(--ctsc-accent);
  border-radius: var(--ctsc-radius);
}

.ctsc__cardlabel {
  font-size: .78em;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ctsc-muted);
}
.ctsc__cardlabel em { font-style: normal; font-weight: 400; text-transform: none; letter-spacing: 0; }

.ctsc__cardvalue {
  margin: .2em 0 .1em;
  font-size: 1.75em;
  font-weight: 700;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  color: var(--ctsc-ink);
}

.ctsc__cardrange {
  font-size: .86em;
  font-weight: 600;
  color: var(--ctsc-accent);
}

.ctsc__cardnote {
  margin-top: .55em;
  font-size: .82em;
  line-height: 1.45;
  color: var(--ctsc-muted);
}

/* ---- Clearance ---- */

.ctsc__clearance {
  margin-top: 1.4em;
  padding: 1.15em 1.25em;
  background: var(--ctsc-accent-soft);
  border-radius: var(--ctsc-radius);
}

.ctsc__subhead {
  margin: 0 0 .7em;
  font-size: 1em;
  font-weight: 700;
}

.ctsc__clist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ctsc__clist li {
  display: flex;
  gap: .9em;
  padding: .55em 0;
  border-top: 1px solid rgba(138,100,70,.18);
}
.ctsc__clist li:first-child { border-top: 0; padding-top: 0; }

.ctsc__cnum {
  flex: 0 0 88px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ctsc-accent);
}

.ctsc__ctext {
  flex: 1 1 auto;
  font-size: .9em;
  color: var(--ctsc-ink);
}

/* ---- Flags ---- */

.ctsc__flags { margin-top: 1.1em; }

.ctsc__flag {
  margin: 0 0 .55em;
  padding: .7em .9em;
  font-size: .88em;
  background: #fff;
  border: 1px solid var(--ctsc-line);
  border-left: 3px solid var(--ctsc-accent);
  border-radius: 5px;
}
.ctsc__flag:last-child { margin-bottom: 0; }
.ctsc__flag strong { color: var(--ctsc-accent); }

/* ---- Actions / footer ---- */

.ctsc__actions { margin-top: 1.2em; }

.ctsc__btn {
  padding: .5em 1.1em;
  font-family: inherit;
  font-size: .9em;
  font-weight: 600;
  color: var(--ctsc-accent);
  background: #fff;
  border: 1px solid var(--ctsc-accent);
  border-radius: 6px;
  cursor: pointer;
}
.ctsc__btn:hover { background: var(--ctsc-accent); color: #fff; }
.ctsc__btn:focus-visible { outline: 2px solid var(--ctsc-accent); outline-offset: 2px; }

.ctsc__foot {
  margin: 1.4em 0 0;
  padding-top: 1.1em;
  border-top: 1px solid var(--ctsc-line);
  font-size: .85em;
  color: var(--ctsc-muted);
}

/* ---- Mobile ---- */

@media (max-width: 640px) {
  .ctsc { padding: 1.15em; margin: 1.25em auto; }
  .ctsc__form { padding: 1em; }
  .ctsc__cards { grid-template-columns: 1fr; }
  .ctsc__card { border-top-width: 3px; }
  .ctsc__cardvalue { font-size: 1.6em; }
  .ctsc__clist li { flex-direction: column; gap: .15em; }
  .ctsc__cnum { flex: none; }
}