/* ==========================================================================
   Long Exposure / ND Filter Calculator — Styles
   ========================================================================== */

.le-page {
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

/* --------------------------------------------------------------------------
   Calculator Layout
   -------------------------------------------------------------------------- */
.le-calc-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
}

@media (max-width: 900px) {
  .le-calc-layout {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Inputs
   -------------------------------------------------------------------------- */
.le-calc-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.input-hint {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  font-weight: var(--font-weight-normal);
}

select,
input[type="number"] {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-mono);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  color: var(--color-gray-900);
  transition: border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--space-10);
}

select:focus,
input[type="number"]:focus {
  outline: none;
  border-color: var(--color-black);
}

.le-stops-total {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  font-family: var(--font-mono);
}

.le-stops-total strong {
  color: var(--color-black);
}

/* Preset buttons */
.input-presets {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.input-presets button {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: var(--font-weight-medium);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.input-presets button:hover {
  border-color: var(--color-gray-400);
  color: var(--color-black);
}

.input-presets button.active {
  background: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Result Card
   -------------------------------------------------------------------------- */
.le-result-card {
  background: var(--color-gray-900);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
}

.le-result-eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-gray-400);
  margin-bottom: var(--space-2);
}

.le-result-value {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-5);
}

/* --------------------------------------------------------------------------
   Effect Zone Visualization
   -------------------------------------------------------------------------- */
.le-effect-zone {
  margin-bottom: var(--space-5);
}

.le-effect-bar {
  display: flex;
  height: 8px;
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
  margin-bottom: var(--space-2);
}

.le-effect-segment {
  flex: 1;
  opacity: 0.25;
  transition: opacity var(--transition-fast);
}

.le-effect-segment.active {
  opacity: 1;
}

.le-effect-segment[data-zone="freeze"] { background: #a3a3a3; }
.le-effect-segment[data-zone="silk"]   { background: #60a5fa; }
.le-effect-segment[data-zone="smooth"] { background: #34d399; }
.le-effect-segment[data-zone="streak"] { background: #fbbf24; }
.le-effect-segment[data-zone="erase"]  { background: #f87171; }

.le-effect-marker {
  position: absolute;
  top: -4px;
  width: 3px;
  height: 16px;
  background: var(--color-white);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: left 0.3s ease-out;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.le-effect-labels {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gray-500);
}

.le-effect-current {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  margin-top: var(--space-2);
  font-weight: var(--font-weight-medium);
}

/* --------------------------------------------------------------------------
   Result Meta & Timer
   -------------------------------------------------------------------------- */
.le-result-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.le-result-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
}

.le-result-row span:first-child {
  color: var(--color-gray-500);
}

.le-result-row span:last-child {
  font-family: var(--font-mono);
  color: var(--color-gray-300);
}

.le-timer-section {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.le-timer-btn {
  width: 100%;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  font-family: inherit;
  background: var(--color-white);
  color: var(--color-black);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.le-timer-btn:hover:not(:disabled) {
  background: var(--color-gray-200);
}

.le-timer-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.le-timer-btn.running {
  background: #ef4444;
  color: var(--color-white);
}

.le-timer-display {
  text-align: center;
  font-size: var(--text-2xl);
  font-family: var(--font-mono);
  font-weight: var(--font-weight-bold);
  margin-top: var(--space-4);
  display: none;
}

.le-timer-display.visible {
  display: block;
}

.le-timer-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  margin-top: var(--space-3);
  overflow: hidden;
}

.le-timer-progress {
  height: 100%;
  background: var(--color-white);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 0.1s linear;
}

/* --------------------------------------------------------------------------
   ND Reference Table
   -------------------------------------------------------------------------- */
.nd-ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.nd-ref-table th,
.nd-ref-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
}

.nd-ref-table th {
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gray-500);
  background: var(--color-gray-100);
}

.nd-ref-table tbody tr:last-child td {
  border-bottom: none;
}

.nd-ref-table tbody tr {
  transition: background var(--transition-fast);
}

.nd-ref-table tbody tr:hover {
  background: var(--color-gray-50);
}

.nd-ref-table tbody tr.active-row {
  background: rgba(0, 0, 0, 0.04);
}

.nd-ref-table tbody tr.active-row td:first-child {
  border-left: 3px solid var(--color-black);
  font-weight: var(--font-weight-semibold);
}

.nd-ref-table .mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* --------------------------------------------------------------------------
   Scenario Cards Grid
   -------------------------------------------------------------------------- */
.le-scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

@media (max-width: 1024px) {
  .le-scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .le-scenario-grid {
    grid-template-columns: 1fr;
  }
}

/* Individual scenario card */
.le-sc {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-left: 3px solid var(--color-gray-300);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.le-sc:hover {
  border-color: var(--color-gray-300);
  background: var(--color-gray-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.le-sc.active {
  border-left-width: 4px;
  background: var(--color-gray-50);
}

/* Zone-colored left border */
.le-sc[data-zone="freeze"] { border-left-color: #a3a3a3; }
.le-sc[data-zone="silk"]   { border-left-color: #60a5fa; }
.le-sc[data-zone="smooth"] { border-left-color: #34d399; }
.le-sc[data-zone="streak"] { border-left-color: #fbbf24; }
.le-sc[data-zone="erase"]  { border-left-color: #f87171; }

/* Card header */
.le-sc-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.le-sc-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
}

.le-sc-zone {
  font-size: 10px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-gray-100);
  color: var(--color-gray-500);
}

.le-sc[data-zone="silk"]   .le-sc-zone { background: rgba(96,165,250,0.12); color: #3b82f6; }
.le-sc[data-zone="smooth"] .le-sc-zone { background: rgba(52,211,153,0.12); color: #059669; }
.le-sc[data-zone="streak"] .le-sc-zone { background: rgba(251,191,36,0.12); color: #d97706; }
.le-sc[data-zone="erase"]  .le-sc-zone { background: rgba(248,113,113,0.12); color: #dc2626; }

/* Settings data */
.le-sc-data {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: var(--space-3);
}

.le-sc-datum {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-gray-700);
}

.le-sc-datum em {
  font-style: normal;
  color: var(--color-gray-400);
  display: inline-block;
  width: 60px;
  font-family: var(--font-family);
}

/* Pro tip */
.le-sc-tip {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  line-height: var(--leading-relaxed);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-gray-100);
}

/* --------------------------------------------------------------------------
   Night Vision Mode
   -------------------------------------------------------------------------- */
body.night-vision .le-result-card {
  background: var(--nv-bg-card);
  border: 1px solid var(--nv-border);
}

body.night-vision .le-result-value {
  color: var(--nv-text);
}

body.night-vision .le-result-eyebrow,
body.night-vision .le-effect-current {
  color: var(--nv-text-dim);
}

body.night-vision .le-result-meta,
body.night-vision .le-timer-section {
  border-top-color: var(--nv-border);
}

body.night-vision .le-result-row span:first-child {
  color: var(--nv-text-dim);
}

body.night-vision .le-result-row span:last-child {
  color: var(--nv-text-muted);
}

body.night-vision select,
body.night-vision input[type="number"] {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text);
}

body.night-vision select:focus,
body.night-vision input[type="number"]:focus {
  border-color: var(--nv-text-dim);
}

body.night-vision .input-presets button {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
  color: var(--nv-text-muted);
}

body.night-vision .input-presets button.active {
  background: var(--nv-text);
  border-color: var(--nv-text);
  color: var(--nv-bg);
}

body.night-vision .le-stops-total {
  color: var(--nv-text-dim);
}

body.night-vision .le-stops-total strong {
  color: var(--nv-text);
}

body.night-vision .nd-ref-table th {
  background: var(--nv-bg-elevated);
  color: var(--nv-text-dim);
}

body.night-vision .nd-ref-table td {
  border-bottom-color: var(--nv-border-subtle);
  color: var(--nv-text);
}

body.night-vision .nd-ref-table tbody tr:hover {
  background: var(--nv-bg-card);
}

/* Scenario cards in night vision */
body.night-vision .le-sc {
  background: var(--nv-bg-card);
  border-color: var(--nv-border);
}

body.night-vision .le-sc:hover {
  background: var(--nv-bg-elevated);
  border-color: var(--nv-border);
  box-shadow: none;
}

body.night-vision .le-sc-title {
  color: var(--nv-text);
}

body.night-vision .le-sc-zone {
  background: rgba(204, 51, 51, 0.15);
  color: var(--nv-text-muted);
}

body.night-vision .le-sc-datum {
  color: var(--nv-text-muted);
}

body.night-vision .le-sc-datum em {
  color: var(--nv-text-dim);
}

body.night-vision .le-sc-tip {
  color: var(--nv-text-dim);
  border-top-color: var(--nv-border-subtle);
}

body.night-vision .le-timer-btn {
  background: var(--nv-text);
  color: var(--nv-bg);
}

body.night-vision .le-timer-btn.running {
  background: var(--nv-accent);
}

body.night-vision .le-effect-marker {
  background: var(--nv-text);
  box-shadow: 0 0 6px rgba(204, 51, 51, 0.5);
}