/* === Layout Shell ===
   Main app-shell grid: sidebar (fixed-width) + viewer stage. */
.app-shell {
    display: grid;
    grid-template-columns: minmax(300px, 380px) 1fr;
    width: 100vw;
    height: 100vh;
    gap: 0;
    padding: 16px;
}

/* === Control Panel ===
   Sidebar styles: scrollable panel, inner flex column, headings,
   scale slider, terrain-scale row, and the panel-actions flex wrapper. */
/* Sidebar control panel styling */
.control-panel {
    width: 100%;
    height: 100%;
    padding: 18px 16px 14px;
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    box-shadow: var(--panel-shadow);
    overflow: auto;
}

.control-panel-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
}

.panel-copy {
    display: none;
}

.panel-intro-card,
.panel-card {
    border: 1px solid rgba(55, 146, 55, 0.14);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(237, 251, 226, 0.82));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.panel-intro-card {
    padding: 16px 16px 14px;
}

.panel-intro-card .panel-copy {
    display: block;
    margin: 10px 0 0;
    font-size: 0.84rem;
    line-height: 1.5;
    color: rgba(47, 59, 64, 0.82);
}

.panel-context-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.panel-context-chip {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 6px 12px;
    border-radius: var(--border-pill);
    background: rgba(55, 146, 55, 0.12);
    border: 1px solid rgba(55, 146, 55, 0.16);
    color: var(--accent-strong);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.panel-context-chip--muted {
    background: rgba(46, 81, 89, 0.08);
    border-color: rgba(46, 81, 89, 0.12);
    color: var(--text-main);
}

.panel-card {
    overflow: clip;
}

.panel-card--compact {
    border-radius: 16px;
}

.panel-card-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 14px 10px;
    border-bottom: 1px solid rgba(55, 146, 55, 0.12);
}

.panel-card--details {
    overflow: clip;
}

.panel-card-summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px 10px;
    border-bottom: 1px solid rgba(55, 146, 55, 0.12);
    user-select: none;
}

.panel-card-summary::-webkit-details-marker {
    display: none;
}

.panel-card-summary::before {
    content: '+';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    border-radius: 999px;
    background: rgba(55, 146, 55, 0.1);
    color: var(--accent-strong);
    font-size: 0.9rem;
    line-height: 1;
}

.panel-card--details[open] > .panel-card-summary::before {
    content: '-';
}

.panel-card--details:not([open]) > .panel-card-summary {
    border-bottom-color: transparent;
}

.panel-section-eyebrow {
    margin: 0;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(46, 81, 89, 0.72);
}

.panel-card-title {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.3;
    color: var(--text-main);
}

.panel-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px 14px 14px;
}

.panel-subsection {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 10px 12px 12px;
    border: 1px solid rgba(55, 146, 55, 0.12);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.46);
}

.panel-subsection--plain {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.panel-subsection-title {
    margin: 0;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(46, 81, 89, 0.76);
}

.panel-heading {
    min-width: 0;
}

.panel-parent-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 0 4px;
    opacity: 0.7;
}

.panel-parent-brand-label {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.panel-parent-brand-link,
.panel-parent-brand-cnpj {
    color: inherit;
    text-decoration: none;
}

.panel-parent-brand-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    transition: transform 140ms ease, opacity 140ms ease;
}

.panel-parent-brand-link:hover,
.panel-parent-brand-link:focus-visible {
    opacity: 1;
    transform: translateY(-1px);
}

.panel-parent-brand-link:focus-visible,
.panel-parent-brand-cnpj:focus-visible {
    outline: 2px solid rgba(67, 160, 71, 0.35);
    outline-offset: 3px;
}

.panel-parent-brand-logo {
    display: block;
    width: auto;
    max-width: 140px;
    height: auto;
    object-fit: contain;
}

.panel-parent-brand-cnpj {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    transition: color 140ms ease, opacity 140ms ease;
}

.panel-parent-brand-cnpj:hover,
.panel-parent-brand-cnpj:focus-visible {
    color: var(--text-strong);
    opacity: 1;
}

.panel-heading-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 12px;
}

.panel-logo-image {
    display: block;
    width: auto;
    max-width: min(100%, 240px);
    height: 110px;
    filter: drop-shadow(0 4px 18px rgba(46, 81, 89, 0.18));
    object-fit: contain;
}

.slider-group {
    min-width: 0;
    padding: 8px 10px;
    border: 1px solid rgba(55, 146, 55, 0.15);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.36);
}

.slider-group--stacked {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.panel-section-title {
    margin: 0;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.terrain-scale-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.terrain-scale-row .slider-input {
    flex: 1;
    min-width: 0;
}

.slider-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
}

.slider-value {
    min-width: 60px;
    padding: 6px 10px;
    border-radius: var(--border-pill);
    background: var(--surface);
    font-size: 0.88rem;
    font-weight: 700;
    text-align: center;
    color: var(--accent-strong);
}

.slider-value--sm {
    min-width: 44px;
    padding: 4px 8px;
    font-size: 0.82rem;
}

.slider-input {
    width: 100%;
    accent-color: var(--accent);
}

.reset-scale-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border: 1px solid rgba(55, 146, 55, 0.25);
    border-radius: 50%;
    background: var(--surface);
    color: var(--accent-strong);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.reset-scale-btn:hover {
    background: var(--accent-strong);
    color: var(--surface-inv);
    border-color: var(--accent-strong);
}

.scale-mode-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 10px;
    font-size: 0.84rem;
    color: var(--text-main);
}

.scale-mode-row select {
    border: 1px solid var(--panel-border);
    border-radius: var(--border-pill);
    padding: 6px 10px;
    background: #edfbe2;
    color: var(--text-main);
    font: inherit;
    cursor: pointer;
}

.panel-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
}

.panel-advanced-section {
    border: 1px solid rgba(55, 146, 55, 0.14);
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(237, 251, 226, 0.78));
    overflow: clip;
}

.panel-advanced-section[hidden] {
    display: none;
}

.panel-advanced-summary {
    list-style: none;
    cursor: pointer;
    padding: 11px 14px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-strong);
    user-select: none;
}

.panel-advanced-summary::-webkit-details-marker {
    display: none;
}

.panel-advanced-summary::before {
    content: '+';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    margin-right: 8px;
    border-radius: 999px;
    background: rgba(55, 146, 55, 0.1);
    color: var(--accent-strong);
    font-size: 0.9rem;
    line-height: 1;
}

.panel-advanced-section[open] .panel-advanced-summary::before {
    content: '-';
}

.panel-advanced-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 12px 12px;
    border-top: 1px solid rgba(55, 146, 55, 0.1);
}

.adjustments-panel-body {
    gap: 10px;
}

.adjustments-panel-section {
    border: 0;
    border-radius: 0;
    background: transparent;
}

.adjustments-panel-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 14px;
    padding: 0;
    border-top: 0;
}

.adjustments-panel-controls .toggle-group {
    padding: 2px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.adjustments-panel-controls .toggle-group--range {
    gap: 4px 10px;
}

.adjustments-panel-controls .toggle-group--range label {
    font-size: 0.76rem;
    font-weight: 600;
    color: rgba(46, 81, 89, 0.82);
}

.adjustments-panel-controls .toggle-group--range input[type="range"] {
    width: 100%;
}

.adjustments-panel-controls .toggle-value {
    min-width: 42px;
    font-size: 0.76rem;
}

.adjustments-panel-toggle {
    align-self: center;
}

.adjustments-panel-controls #reset-lighting {
    align-self: center;
    justify-self: end;
    padding: 6px 10px;
}