/* PhotoBrain by CineJera - Exposure Tools Public CSS
 *
 * Sections:
 * 1. Base
 * 2. Layout and cards
 * 3. Tabs and panels
 * 4. Forms and buttons
 * 5. Results and tables
 * 6. Gate overlay and locked state
 */

:root {
  --pbex-bg: #0b0f17;
  --pbex-card: rgba(255, 255, 255, 0.06);
  --pbex-card-2: rgba(255, 255, 255, 0.08);
  --pbex-border: rgba(255, 255, 255, 0.10);
  --pbex-text: rgba(255, 255, 255, 0.92);
  --pbex-muted: rgba(255, 255, 255, 0.70);
  --pbex-muted-2: rgba(255, 255, 255, 0.55);
  --pbex-accent: #6ee7ff;
  --pbex-accent-2: #a78bfa;
  --pbex-good: #34d399;
  --pbex-bad: #fb7185;
  --pbex-warn: #fbbf24;
  --pbex-radius: 16px;
  --pbex-shadow: 0 18px 40px rgba(0,0,0,0.35);
  --pbex-max: 1000px;
  --pbex-gap: 14px;
  --pbex-font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

.pbex-wrap {
  font-family: var(--pbex-font);
  color: var(--pbex-text);
  max-width: var(--pbex-max);
  margin: 0 auto;
  padding: 22px 16px 40px;
  position: relative;
}

.pbex-hero {
  padding: 10px 6px 18px;
}

.pbex-title {
  margin: 0 0 8px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.pbex-sub {
  margin: 0;
  color: var(--pbex-muted);
  font-size: 15px;
  line-height: 1.5;
  max-width: 70ch;
}

/* Card */
.pbex-card {
  background: var(--pbex-card);
  border: 1px solid var(--pbex-border);
  border-radius: var(--pbex-radius);
  box-shadow: var(--pbex-shadow);
  overflow: hidden;
}

.pbex-content {
  display: block;
}

/* Tabs */
.pbex-tabs {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--pbex-border);
  flex-wrap: wrap;
}

.pbex-tab {
  appearance: none;
  border: 1px solid var(--pbex-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--pbex-muted);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  transition: transform 120ms ease, background 120ms ease, color 120ms ease;
}

.pbex-tab:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.06);
  color: var(--pbex-text);
}

.pbex-tab.is-active {
  background: linear-gradient(135deg, rgba(110,231,255,0.18), rgba(167,139,250,0.16));
  border-color: rgba(110,231,255,0.30);
  color: var(--pbex-text);
}

/* Panels */
.pbex-panels {
  padding: 14px;
}

.pbex-panel {
  display: none;
}

.pbex-panel.is-active {
  display: block;
}

.pbex-panel-head {
  margin-bottom: 12px;
}

.pbex-h2 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.2;
}

.pbex-h3 {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.2;
}

.pbex-h4 {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.2;
}

.pbex-note {
  margin: 0;
  color: var(--pbex-muted);
  font-size: 13px;
  line-height: 1.45;
}

.pbex-muted {
  color: var(--pbex-muted);
}

.pbex-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--pbex-gap);
}

@media (max-width: 720px) {
  .pbex-grid {
    grid-template-columns: 1fr;
  }
}

.pbex-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pbex-label {
  font-size: 12px;
  color: var(--pbex-muted);
}

.pbex-input,
.pbex-select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--pbex-border);
  background: rgba(0,0,0,0.22);
  color: var(--pbex-text);
  padding: 10px 12px;
  outline: none;
}

.pbex-input:focus,
.pbex-select:focus {
  border-color: rgba(110,231,255,0.35);
  box-shadow: 0 0 0 4px rgba(110,231,255,0.10);
}

.pbex-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  padding-top: 12px;
}

.pbex-meta {
  font-size: 13px;
  color: var(--pbex-muted);
}

.pbex-btn {
  appearance: none;
  border-radius: 12px;
  border: 1px solid var(--pbex-border);
  background: rgba(255,255,255,0.06);
  color: var(--pbex-text);
  padding: 10px 12px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.pbex-btn:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.08);
}

.pbex-btn-primary {
  background: linear-gradient(135deg, rgba(110,231,255,0.22), rgba(167,139,250,0.20));
  border-color: rgba(110,231,255,0.30);
}

.pbex-btn-primary:hover {
  background: linear-gradient(135deg, rgba(110,231,255,0.28), rgba(167,139,250,0.24));
}

.pbex-btn-ghost {
  background: transparent;
}

.pbex-result {
  margin-top: 14px;
}

.pbex-result-card {
  border: 1px solid var(--pbex-border);
  background: var(--pbex-card-2);
  border-radius: var(--pbex-radius);
  padding: 14px;
}

.pbex-big {
  font-size: 16px;
  margin-bottom: 8px;
}

.pbex-small {
  font-size: 13px;
  color: var(--pbex-muted);
  margin: 6px 0;
}

.pbex-warn {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(251,191,36,0.30);
  background: rgba(251,191,36,0.10);
  color: rgba(255,255,255,0.88);
}

.pbex-ul {
  margin: 10px 0 0;
  padding: 0 0 0 18px;
  color: var(--pbex-muted);
  font-size: 13px;
  line-height: 1.55;
}

.pbex-table-wrap {
  margin-top: 10px;
  overflow: auto;
  border-radius: 12px;
  border: 1px solid var(--pbex-border);
}

.pbex-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.pbex-table th,
.pbex-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--pbex-border);
}

.pbex-table th {
  color: var(--pbex-muted);
  text-align: left;
  background: rgba(0,0,0,0.16);
}

.pbex-cheats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--pbex-gap);
}

@media (max-width: 720px) {
  .pbex-cheats {
    grid-template-columns: 1fr;
  }
}

.pbex-cheat {
  border: 1px solid var(--pbex-border);
  background: rgba(255,255,255,0.05);
  border-radius: var(--pbex-radius);
  padding: 14px;
}

.pbex-footnote {
  margin-top: 14px;
  padding: 10px 6px 0;
  color: var(--pbex-muted-2);
  font-size: 12px;
}

/* Gate overlay and locked state */
.pbex-gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.55);
}

.pbex-gate[aria-hidden="true"] {
  display: none;
}

.pbex-gate-card {
  width: 100%;
  max-width: 520px;
  background: rgba(15, 18, 28, 0.92);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
  padding: 16px;
  backdrop-filter: blur(10px);
}

.pbex-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.pbex-row-tight {
  align-items: flex-start;
}

@media (max-width: 520px) {
  .pbex-row {
    flex-direction: column;
    align-items: stretch;
  }
}

.pbex-gate-status {
  font-size: 13px;
  color: var(--pbex-muted);
  min-height: 18px;
}

.pbex-gate-status.is-ok {
  color: var(--pbex-good);
}

.pbex-gate-status.is-bad {
  color: var(--pbex-bad);
}

/* Blur and disable content when locked, but never hide the gate */
.pbex-locked .pbex-content {
  filter: blur(7px);
  opacity: 0.55;
  pointer-events: none;
  user-select: none;
}