/* ==========================================================
   SPEED DISTANCE TIME CALCULATOR
   Extracted from calculator-tools.css (lines 5294-5831)
   ========================================================== */
/* ----------------------------------------------------------
   SPEED DISTANCE TIME — PREMIUM PROFESSIONAL STYLES
   FULLY RESPONSIVE — checked at all breakpoints
   ---------------------------------------------------------- */

/* ===== MODE SELECTOR ===== */
.ct-spd-modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: var(--ct-sp-xl);
}

.ct-spd-mode {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 10px 14px;
  background: var(--ct-input-bg);
  border: 2px solid var(--ct-input-border);
  border-radius: var(--ct-r-lg);
  cursor: pointer;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  font-family: var(--ct-font);
  user-select: none;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ct-spd-mode::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,.07), rgba(236,72,153,.04));
  opacity: 0;
  transition: opacity .3s ease;
}

.ct-spd-mode:hover {
  border-color: var(--ct-primary-light);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(99,102,241,.14);
}

.ct-spd-mode:hover::before { opacity: 1; }

.ct-spd-mode-active,
.ct-spd-mode-active:hover {
  border-color: var(--ct-primary) !important;
  background: rgba(99,102,241,.04) !important;
  box-shadow: 0 8px 28px var(--ct-primary-glow),
              inset 0 0 0 1px rgba(99,102,241,.08) !important;
  transform: translateY(-4px) !important;
}

.ct-spd-mode-active::before { opacity: 1 !important; }

.ct-spd-mode-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(99,102,241,.1), rgba(99,102,241,.04));
  font-size: 22px;
  position: relative;
  z-index: 1;
  transition: all .3s ease;
}

.ct-spd-mode-active .ct-spd-mode-icon {
  background: linear-gradient(135deg, var(--ct-primary), var(--ct-primary-hover));
  box-shadow: 0 4px 14px var(--ct-primary-glow);
  transform: scale(1.05);
}

.ct-spd-mode-name {
  font-size: 13px;
  font-weight: 800;
  color: var(--ct-text-secondary);
  position: relative;
  z-index: 1;
}

.ct-spd-mode-active .ct-spd-mode-name {
  color: var(--ct-primary);
}

.ct-spd-mode-formula {
  font-size: 11px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--ct-text-muted);
  background: rgba(0,0,0,.04);
  padding: 3px 10px;
  border-radius: 12px;
  position: relative;
  z-index: 1;
}

.ct-spd-mode-active .ct-spd-mode-formula {
  background: rgba(99,102,241,.08);
  color: var(--ct-primary);
}

/* ===== PANELS ===== */
.ct-spd-panel { display: none; }
.ct-spd-panel-active { display: block; animation: ctFadeUp .3s var(--ct-ease); }

.ct-spd-panel-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(99,102,241,.06), rgba(236,72,153,.03));
  border: 1px solid rgba(99,102,241,.12);
  border-left: 4px solid var(--ct-primary);
  border-radius: var(--ct-r-md);
  margin-bottom: var(--ct-sp-lg);
  box-shadow: 0 4px 14px rgba(99,102,241,.05);
}

.ct-spd-panel-head span:first-child { font-size: 28px; flex-shrink: 0; }
.ct-spd-panel-head strong { display: block; font-size: 15px; color: var(--ct-text); }
.ct-spd-panel-head small { display: block; font-size: 12px; color: var(--ct-text-secondary); margin-top: 2px; }

/* ===== INPUT PAIR (input + unit select) ===== */
.ct-spd-input-pair {
  display: flex;
  gap: 0;
}

.ct-spd-input-pair .ct-input {
  flex: 1;
  min-width: 0;
  border-radius: var(--ct-r-md) 0 0 var(--ct-r-md) !important;
  border-right: none !important;
}

.ct-spd-unit-sel {
  width: 100px !important;
  flex-shrink: 0;
  border-radius: 0 var(--ct-r-md) var(--ct-r-md) 0 !important;
  border-left: 1px solid var(--ct-input-border) !important;
  font-size: 13px !important;
  font-weight: 700 !important;
  padding: 10px 28px 10px 10px !important;
  background-position: right 8px center !important;
}

/* ===== ANSWER DISPLAY ===== */
.ct-spd-answer {
  text-align: center;
  padding: 20px var(--ct-sp-md);
  word-break: break-word;
  overflow-wrap: break-word;
  background: linear-gradient(180deg, rgba(99,102,241,.03), transparent);
  border-radius: var(--ct-r-lg);
  margin-bottom: var(--ct-sp-md);
}

.ct-spd-answer:empty { display: none; }

.ct-spd-answer-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--ct-text-muted);
  margin-bottom: 10px;
  padding: 4px 16px;
  background: rgba(0,0,0,.03);
  border-radius: 20px;
}

.ct-spd-answer-value {
  display: block;
  font-size: clamp(22px, 4.5vw, 30px);
  font-weight: 900;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--ct-primary), var(--ct-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  word-break: break-word;
}

.ct-spd-answer-sub {
  display: block;
  font-size: clamp(13px, 2.5vw, 16px);
  font-weight: 600;
  color: var(--ct-text-secondary);
  margin-top: 8px;
  word-break: break-word;
}

/* ===== SPEED GAUGE ===== */
.ct-spd-gauge-wrap {
  margin: var(--ct-sp-lg) 0;
  padding: var(--ct-sp-lg);
  background: var(--ct-input-bg);
  border: 1px solid var(--ct-input-border);
  border-radius: var(--ct-r-md);
}

.ct-spd-gauge-wrap[hidden] { display: none; }

.ct-spd-gauge {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ct-spd-gauge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--ct-r-sm);
  transition: background .2s ease;
}

.ct-spd-gauge-row:hover {
  background: rgba(0,0,0,.02);
}

.ct-spd-gauge-row-you {
  background: linear-gradient(135deg, rgba(99,102,241,.08), rgba(99,102,241,.04)) !important;
  border: 2px solid rgba(99,102,241,.2);
  border-radius: var(--ct-r-md);
  padding: 10px 12px;
}

.ct-spd-gauge-icon {
  font-size: 18px;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}

.ct-spd-gauge-name {
  font-size: clamp(11px, 2vw, 13px);
  font-weight: 700;
  color: var(--ct-text-secondary);
  min-width: 80px;
  flex-shrink: 0;
}

.ct-spd-gauge-row-you .ct-spd-gauge-name {
  color: var(--ct-primary);
  font-weight: 800;
}

.ct-spd-gauge-bar-wrap {
  flex: 1;
  height: 10px;
  background: var(--ct-input-border);
  border-radius: 5px;
  overflow: hidden;
  min-width: 40px;
}

.ct-spd-gauge-bar {
  height: 100%;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--ct-input-border), #94a3b8);
  transition: width .8s cubic-bezier(.4,0,.2,1);
}

.ct-spd-gauge-row-you .ct-spd-gauge-bar {
  background: linear-gradient(90deg, var(--ct-primary), var(--ct-primary-light)) !important;
}

.ct-spd-gauge-val {
  font-size: clamp(10px, 1.8vw, 12px);
  font-weight: 800;
  color: var(--ct-text-muted);
  min-width: 70px;
  text-align: right;
  flex-shrink: 0;
  word-break: break-word;
}

.ct-spd-gauge-row-you .ct-spd-gauge-val {
  color: var(--ct-primary);
}

/* ===== CONVERSION GRID ===== */
.ct-spd-conv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
}

.ct-spd-conv-card {
  padding: 14px 12px;
  background: var(--ct-card-bg);
  border: 1px solid var(--ct-input-border);
  border-radius: var(--ct-r-sm);
  text-align: center;
  transition: transform .2s ease, box-shadow .2s ease;
  word-break: break-word;
  overflow: hidden;
}

.ct-spd-conv-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0,0,0,.06);
}

.ct-spd-conv-card-active {
  border-color: var(--ct-primary) !important;
  background: rgba(99,102,241,.04) !important;
}

.ct-spd-conv-val {
  display: block;
  font-size: clamp(15px, 3vw, 20px);
  font-weight: 800;
  color: var(--ct-text);
  line-height: 1.2;
  word-break: break-word;
}

.ct-spd-conv-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--ct-text-muted);
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-top: 4px;
}

/* ===== STEP NUMBERS ===== */
.ct-spd-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ct-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
  margin-right: 6px;
}

/* ===== RESULT OVERRIDES ===== */
.ct-tool-section[data-tool="speed"] .ct-result-value {
  font-size: clamp(14px, 3vw, 20px);
  word-break: break-word;
  overflow-wrap: break-word;
  line-height: 1.2;
  max-width: 100%;
  padding: 0 2px;
}

.ct-tool-section[data-tool="speed"] .ct-result-card {
  min-width: 0;
  overflow: hidden;
  padding: var(--ct-sp-md) var(--ct-sp-sm);
  word-break: break-word;
}

.ct-tool-section[data-tool="speed"] .ct-result-summary {
  word-break: break-word;
  overflow-wrap: break-word;
  font-size: clamp(12px, 2.5vw, 15px);
  line-height: 1.7;
}

.ct-tool-section[data-tool="speed"] .ct-detail-val {
  word-break: break-word;
  overflow-wrap: break-word;
}

/* ===== RESPONSIVE: 768px ===== */
@media (max-width: 768px) {
  .ct-spd-modes {
    gap: 8px;
  }

  .ct-spd-mode {
    padding: 14px 6px 10px;
    gap: 5px;
  }

  .ct-spd-mode-icon {
    width: 38px;
    height: 38px;
    font-size: 18px;
    border-radius: 10px;
  }

  .ct-spd-mode-name { font-size: 11px; }
  .ct-spd-mode-formula { font-size: 10px; padding: 2px 8px; }

  .ct-spd-panel-head {
    padding: 12px 14px;
    gap: 10px;
  }

  .ct-spd-panel-head span:first-child { font-size: 22px; }
  .ct-spd-panel-head strong { font-size: 14px; }

  .ct-spd-unit-sel {
    width: 85px !important;
    font-size: 11px !important;
    padding: 10px 22px 10px 8px !important;
  }

  .ct-tool-section[data-tool="speed"] .ct-result-grid {
    grid-template-columns: 1fr !important;
    gap: var(--ct-sp-sm);
  }

  .ct-tool-section[data-tool="speed"] .ct-detail-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .ct-tool-section[data-tool="speed"] .ct-detail-val {
    text-align: left;
    padding-left: 28px;
  }

  .ct-spd-conv-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 6px;
  }

  .ct-spd-gauge-name { min-width: 65px; }
  .ct-spd-gauge-val { min-width: 55px; }

  .ct-spd-gauge-wrap {
    padding: var(--ct-sp-md);
  }
}

/* ===== RESPONSIVE: 480px ===== */
@media (max-width: 480px) {
  .ct-spd-modes {
    gap: 6px;
  }

  .ct-spd-mode {
    padding: 10px 4px 8px;
    gap: 4px;
  }

  .ct-spd-mode-icon {
    width: 32px;
    height: 32px;
    font-size: 15px;
    border-radius: 8px;
  }

  .ct-spd-mode-name { font-size: 10px; }
  .ct-spd-mode-formula { font-size: 9px; padding: 2px 6px; }

  .ct-spd-input-pair {
    flex-direction: column;
    gap: 0;
  }

  .ct-spd-input-pair .ct-input {
    border-radius: var(--ct-r-md) var(--ct-r-md) 0 0 !important;
    border-right: 2px solid var(--ct-input-border) !important;
    border-bottom: none !important;
  }

  .ct-spd-unit-sel {
    width: 100% !important;
    border-radius: 0 0 var(--ct-r-md) var(--ct-r-md) !important;
    border-left: 2px solid var(--ct-input-border) !important;
    border-top: 1px solid var(--ct-input-border) !important;
  }

  .ct-spd-panel-head {
    padding: 10px 12px;
    gap: 8px;
  }

  .ct-spd-panel-head span:first-child { font-size: 20px; }
  .ct-spd-panel-head strong { font-size: 13px; }
  .ct-spd-panel-head small { font-size: 11px; }

  .ct-spd-conv-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 5px;
  }

  .ct-spd-conv-card { padding: 10px 8px; }
  .ct-spd-conv-val { font-size: 14px; }
  .ct-spd-conv-label { font-size: 9px; }

  .ct-spd-gauge-row { gap: 6px; padding: 6px 8px; }
  .ct-spd-gauge-icon { font-size: 14px; width: 22px; }
  .ct-spd-gauge-name { min-width: 55px; font-size: 10px; }
  .ct-spd-gauge-val { min-width: 50px; font-size: 10px; }
  .ct-spd-gauge-bar-wrap { height: 8px; }

  .ct-spd-gauge-wrap { padding: 10px; }
}

/* ===== RESPONSIVE: 360px ===== */
@media (max-width: 360px) {
  .ct-spd-mode {
    padding: 8px 3px 6px;
  }

  .ct-spd-mode-icon {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .ct-spd-mode-name { font-size: 9px; }
  .ct-spd-mode-formula { font-size: 8px; }

  .ct-spd-conv-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4px;
  }

  .ct-spd-gauge-name { min-width: 45px; font-size: 9px; }
  .ct-spd-gauge-val { min-width: 40px; font-size: 9px; }
  .ct-spd-gauge-icon { font-size: 12px; width: 18px; }
  .ct-spd-gauge-bar-wrap { height: 6px; }
}