/* =========================================================
   Surveillance Storage Calculator — Material Design 3
   ========================================================= */

/* ---------- Tokens ---------- */
.ssc-wrap {
  --md-primary:        #1A73E8;
  --md-primary-dark:   #1557B0;
  --md-secondary:      #00BFA5;
  --md-error:          #B3261E;
  --md-surface:        #FFFFFF;
  --md-surface-1:      #F8F9FC;
  --md-surface-2:      #EEF2FB;
  --md-outline:        #C4C7CF;
  --md-on-surface:     #1C1B1F;
  --md-on-surface-var: #49454F;
  --md-shadow-1: 0 1px 2px rgba(0,0,0,.12), 0 1px 3px rgba(0,0,0,.08);
  --md-shadow-2: 0 2px 6px rgba(0,0,0,.10), 0 1px 4px rgba(0,0,0,.08);
  --md-shadow-3: 0 4px 12px rgba(0,0,0,.12), 0 2px 6px rgba(0,0,0,.08);
  --md-radius-sm: 8px;
  --md-radius-md: 12px;
  --md-radius-lg: 16px;

  font-family: 'Roboto', system-ui, sans-serif;
  color: var(--md-on-surface);
  background: transparent;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Icon system (inline SVG, no external font dependency) ---------- */
.ssc-wrap .ssc-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}
.ssc-wrap .ssc-icon svg { width: 100%; height: 100%; display: block; stroke: currentColor; }

/* ---------- App Shell ---------- */
.ssc-wrap .ssc-card {
  background: var(--md-surface);
  border-radius: var(--md-radius-lg);
  box-shadow: var(--md-shadow-2);
  overflow: hidden;
  max-width: 860px;
  margin: 0 auto;
}

/* ---------- Header ---------- */
.ssc-wrap .ssc-header {
  background: var(--md-primary);
  padding: 28px 32px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.ssc-wrap .ssc-header-icon {
  background: rgba(255,255,255,.18);
  border-radius: 50%;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.ssc-wrap .ssc-header-icon .ssc-icon { color: #fff; width: 26px; height: 26px; }
.ssc-wrap .ssc-header-text h2 {
  margin: 0 0 2px;
  font-size: 1.375rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: .01em;
}
.ssc-wrap .ssc-header-text p {
  margin: 0;
  font-size: .875rem;
  color: rgba(255,255,255,.80);
  font-weight: 300;
}

/* ---------- Body ---------- */
.ssc-wrap .ssc-body {
  padding: 28px 32px 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 32px;
}

/* ---------- Section Labels ---------- */
.ssc-wrap .ssc-section {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: -8px;
  margin-top: 4px;
}
.ssc-wrap .ssc-section:first-child { margin-top: 0; }
.ssc-wrap .ssc-section .ssc-icon {
  width: 18px;
  height: 18px;
  color: var(--md-primary);
}
.ssc-wrap .ssc-section span:last-child {
  font-size: .8125rem;
  font-weight: 500;
  color: var(--md-primary);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.ssc-wrap .ssc-section-line {
  flex: 1;
  height: 1px;
  background: var(--md-surface-2);
  margin-left: 4px;
}

/* ---------- Field Groups ---------- */
.ssc-wrap .ssc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ssc-wrap .ssc-field-full {
  grid-column: 1 / -1;
}

.ssc-wrap .ssc-field label {
  font-size: .8125rem;
  font-weight: 500;
  color: var(--md-on-surface-var);
  letter-spacing: .02em;
}

/* ---------- Inputs ---------- */
.ssc-wrap .ssc-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.ssc-wrap .ssc-input-wrap .ssc-icon {
  position: absolute;
  left: 12px;
  width: 18px;
  height: 18px;
  color: var(--md-on-surface-var);
  pointer-events: none;
}
.ssc-wrap .ssc-input-wrap input,
.ssc-wrap .ssc-input-wrap select {
  width: 100%;
  box-sizing: border-box;
  height: 44px;
  border: 1.5px solid var(--md-outline);
  border-radius: var(--md-radius-sm);
  background: var(--md-surface);
  font-family: inherit;
  font-size: .9375rem;
  color: var(--md-on-surface);
  padding: 0 12px 0 40px;
  outline: none;
  transition: border-color .18s, box-shadow .18s;
  -webkit-appearance: none;
  appearance: none;
}
.ssc-wrap .ssc-input-wrap input:focus,
.ssc-wrap .ssc-input-wrap select:focus {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,.12);
}
.ssc-wrap .ssc-input-wrap select {
  padding-right: 36px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2349454F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 18px;
  cursor: pointer;
}
.ssc-wrap .ssc-input-wrap .ssc-unit {
  position: absolute;
  right: 12px;
  font-size: .8125rem;
  color: var(--md-on-surface-var);
  font-weight: 500;
  pointer-events: none;
}
.ssc-wrap .ssc-input-wrap input[type="number"] { padding-right: 44px; }

/* ---------- Range Slider ---------- */
.ssc-wrap .ssc-slider-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ssc-wrap .ssc-slider-wrap input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 4px;
  background: var(--md-surface-2);
  outline: none;
  cursor: pointer;
  border: none;
  padding: 0;
}
.ssc-wrap .ssc-slider-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--md-primary);
  box-shadow: var(--md-shadow-1);
  transition: transform .15s;
}
.ssc-wrap .ssc-slider-wrap input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}
.ssc-wrap .ssc-slider-val {
  min-width: 48px;
  text-align: right;
  font-size: .9rem;
  font-weight: 500;
  color: var(--md-primary);
  font-family: 'Roboto Mono', monospace;
}

/* ---------- Chip Group (Resolution) ---------- */
.ssc-wrap .ssc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
}
.ssc-wrap .ssc-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--md-outline);
  background: var(--md-surface);
  font-size: .8125rem;
  font-weight: 500;
  color: var(--md-on-surface-var);
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
  user-select: none;
}
.ssc-wrap .ssc-chip:hover {
  background: var(--md-surface-2);
  border-color: var(--md-primary);
  color: var(--md-primary);
}
.ssc-wrap .ssc-chip.active {
  background: var(--md-primary);
  border-color: var(--md-primary);
  color: #fff;
}

/* ---------- Calculate Button ---------- */
.ssc-wrap .ssc-btn-row {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  margin-top: 8px;
}
.ssc-wrap .ssc-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--md-primary);
  color: #fff;
  border: none;
  border-radius: var(--md-radius-sm);
  padding: 0 32px;
  height: 48px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  box-shadow: var(--md-shadow-2);
  transition: background .18s, box-shadow .18s, transform .12s;
}
.ssc-wrap .ssc-btn:hover {
  background: var(--md-primary-dark);
  box-shadow: var(--md-shadow-3);
}
.ssc-wrap .ssc-btn:active { transform: scale(.97); }
.ssc-wrap .ssc-btn .ssc-icon { width: 20px; height: 20px; }

/* ---------- Results Panel ---------- */
.ssc-wrap .ssc-results {
  display: none;
  grid-column: 1 / -1;
  background: var(--md-surface-1);
  border-radius: var(--md-radius-md);
  border: 1.5px solid var(--md-surface-2);
  overflow: hidden;
  animation: ssc-fadein .3s ease;
}
.ssc-wrap .ssc-results.visible { display: block; }

@keyframes ssc-fadein {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ssc-wrap .ssc-results-header {
  background: var(--md-secondary);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.ssc-wrap .ssc-results-header .ssc-icon { color: #fff; width: 20px; height: 20px; }
.ssc-wrap .ssc-results-header span {
  font-size: .9375rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: .02em;
}

.ssc-wrap .ssc-result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.ssc-wrap .ssc-result-item {
  padding: 20px 20px 18px;
  border-right: 1px solid var(--md-surface-2);
  border-bottom: 1px solid var(--md-surface-2);
}
.ssc-wrap .ssc-result-item:nth-child(3n) { border-right: none; }
.ssc-wrap .ssc-result-item:nth-last-child(-n+3) { border-bottom: none; }
.ssc-wrap .ssc-result-label {
  font-size: .75rem;
  font-weight: 500;
  color: var(--md-on-surface-var);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.ssc-wrap .ssc-result-label .ssc-icon { width: 14px; height: 14px; color: var(--md-primary); }
.ssc-wrap .ssc-result-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--md-primary);
  font-family: 'Roboto Mono', monospace;
  line-height: 1.1;
}
.ssc-wrap .ssc-result-sub {
  font-size: .75rem;
  color: var(--md-on-surface-var);
  margin-top: 3px;
}

/* ---------- Breakdown Bar ---------- */
.ssc-wrap .ssc-breakdown {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--md-surface-2);
}
.ssc-wrap .ssc-breakdown-title {
  font-size: .8125rem;
  font-weight: 500;
  color: var(--md-on-surface-var);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.ssc-wrap .ssc-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.ssc-wrap .ssc-bar-label {
  width: 120px;
  font-size: .8125rem;
  color: var(--md-on-surface-var);
  flex-shrink: 0;
}
.ssc-wrap .ssc-bar-track {
  flex: 1;
  height: 8px;
  background: var(--md-surface-2);
  border-radius: 4px;
  overflow: hidden;
}
.ssc-wrap .ssc-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--md-primary);
  transition: width .5s cubic-bezier(.34,1.56,.64,1);
}
.ssc-wrap .ssc-bar-val {
  width: 92px;
  text-align: right;
  font-size: .8125rem;
  font-weight: 500;
  color: var(--md-on-surface);
  font-family: 'Roboto Mono', monospace;
  flex-shrink: 0;
}

/* ---------- Tip Box ---------- */
.ssc-wrap .ssc-tip {
  margin: 0 20px 20px;
  padding: 12px 16px;
  background: rgba(26,115,232,.06);
  border-left: 3px solid var(--md-primary);
  border-radius: 0 var(--md-radius-sm) var(--md-radius-sm) 0;
  font-size: .8125rem;
  color: var(--md-on-surface-var);
  line-height: 1.5;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.ssc-wrap .ssc-tip .ssc-icon { width: 16px; height: 16px; color: var(--md-primary); flex-shrink:0; margin-top: 1px; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .ssc-wrap .ssc-body { grid-template-columns: 1fr; padding: 20px 18px 24px; gap: 18px; }
  .ssc-wrap .ssc-header { padding: 20px 18px 18px; }
  .ssc-wrap .ssc-result-grid { grid-template-columns: 1fr 1fr; }
  .ssc-wrap .ssc-result-item:nth-child(3n) { border-right: 1px solid var(--md-surface-2); }
  .ssc-wrap .ssc-result-item:nth-child(2n) { border-right: none; }
}
@media (max-width: 380px) {
  .ssc-wrap .ssc-result-grid { grid-template-columns: 1fr; }
  .ssc-wrap .ssc-result-item { border-right: none !important; }
}