/**
 * SPDX-FileCopyrightText: 2026 Priya Vijai Kalyan <priyavijai.kalyan2007@proton.me>
 * SPDX-License-Identifier: MIT
 */

/* ========================================================================
   Studio Shell — shared layout for studio applications
   Full-viewport, three-column layout with header and collapsible sidebars
   ======================================================================== */

/* Reset & base — inherits Bootstrap's font-size from custom.css */
html, body
{
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

/* ========================================================================
   LAYOUT GRID
   ======================================================================== */

.studio-root
{
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.studio-header
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    min-height: 42px;
    flex-shrink: 0;
    z-index: 100;
}

.studio-header-left
{
    display: flex;
    align-items: center;
    gap: 8px;
}

.studio-header-right
{
    display: flex;
    align-items: center;
    gap: 8px;
}

.studio-title
{
    font-size: 15px;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.studio-title i
{
    font-size: 18px;
    opacity: 0.7;
}

.studio-filename
{
    font-size: 12px;
    color: var(--bs-secondary-color, #6c757d);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.studio-autosave-indicator
{
    font-size: 11px;
    color: var(--bs-success, #198754);
    opacity: 0;
    transition: opacity 0.3s;
}

.studio-autosave-indicator.visible
{
    opacity: 1;
}

/* ========================================================================
   THREE-COLUMN BODY
   ======================================================================== */

.studio-body
{
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Left sidebar */
.studio-sidebar-left
{
    width: 240px;
    min-width: 200px;
    border-right: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.studio-sidebar-left.collapsed
{
    width: 0;
    min-width: 0;
    border-right: none;
}

/* Right sidebar */
.studio-sidebar-right
{
    width: 280px;
    min-width: 240px;
    border-left: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.studio-sidebar-right.collapsed
{
    width: 0;
    min-width: 0;
    border-left: none;
}

/* Center content */
.studio-center
{
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* ========================================================================
   SIDEBAR INTERNALS
   ======================================================================== */

.studio-sidebar-header
{
    padding: 8px 12px;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--bs-secondary-color, #6c757d);
    flex-shrink: 0;
}

.studio-sidebar-body
{
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.studio-sidebar-search
{
    padding: 8px;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    flex-shrink: 0;
}

.studio-sidebar-search input
{
    width: 100%;
    font-size: 12px;
    padding: 4px 8px;
    border: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    color: var(--bs-body-color, #212529);
}

/* ========================================================================
   CATEGORY GROUPS (for palette)
   ======================================================================== */

.studio-category
{
    margin-bottom: 4px;
}

.studio-category-header
{
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--bs-secondary-color, #6c757d);
    cursor: pointer;
    user-select: none;
}

.studio-category-header:hover
{
    background: var(--bs-tertiary-bg, #f8f9fa);
}

.studio-category-header i
{
    font-size: 10px;
    transition: transform 0.15s;
}

.studio-category.collapsed .studio-category-header i
{
    transform: rotate(-90deg);
}

.studio-category.collapsed .studio-category-items
{
    display: none;
}

.studio-category-items
{
    padding: 0 4px;
}

.studio-palette-item
{
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    font-size: 12px;
    cursor: grab;
    user-select: none;
}

.studio-palette-item:hover
{
    background: var(--bs-tertiary-bg, #f8f9fa);
}

.studio-palette-item:active
{
    cursor: grabbing;
}

.studio-palette-item i
{
    font-size: 14px;
    opacity: 0.6;
    width: 18px;
    text-align: center;
}

.studio-palette-item .item-size
{
    font-size: 10px;
    color: var(--bs-secondary-color, #6c757d);
    margin-left: auto;
}

/* ========================================================================
   PAGE TABS
   ======================================================================== */

.studio-tabs
{
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    min-height: 32px;
    flex-shrink: 0;
    overflow-x: auto;
    padding: 0 4px;
}

.studio-tab
{
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    font-size: 12px;
    cursor: pointer;
    user-select: none;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.studio-tab:hover
{
    background: var(--bs-tertiary-bg, #f8f9fa);
}

.studio-tab.active
{
    border-bottom-color: var(--bs-primary, #0d6efd);
    font-weight: 600;
}

.studio-tab .tab-close
{
    font-size: 10px;
    opacity: 0.4;
    cursor: pointer;
    padding: 0 2px;
}

.studio-tab .tab-close:hover
{
    opacity: 1;
}

.studio-tab-add
{
    padding: 4px 8px;
    font-size: 14px;
    cursor: pointer;
    opacity: 0.4;
}

.studio-tab-add:hover
{
    opacity: 1;
}

/* ========================================================================
   CANVAS AREA
   ======================================================================== */

.studio-canvas
{
    flex: 1;
    overflow: hidden;
}

/* ========================================================================
   PROPERTY PANEL
   ======================================================================== */

.studio-prop-group
{
    margin-bottom: 12px;
}

.studio-prop-group-title
{
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--bs-secondary-color, #6c757d);
    padding: 4px 0;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    margin-bottom: 6px;
}

.studio-prop-row
{
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.studio-prop-label
{
    font-size: 11px;
    color: var(--bs-secondary-color, #6c757d);
    width: 40px;
    flex-shrink: 0;
}

.studio-prop-input
{
    flex: 1;
    font-size: 12px;
    padding: 2px 6px;
    border: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    color: var(--bs-body-color, #212529);
}

.studio-prop-input:focus
{
    outline: 1px solid var(--bs-primary, #0d6efd);
    border-color: var(--bs-primary, #0d6efd);
}

/* ========================================================================
   FILE DIALOG (modal overlay)
   ======================================================================== */

.studio-dialog-overlay
{
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.studio-dialog
{
    background: var(--bs-body-bg, #fff);
    border: 1px solid var(--bs-border-color, #dee2e6);
    width: 480px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.studio-dialog-header
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
    font-weight: 600;
}

.studio-dialog-close
{
    cursor: pointer;
    font-size: 18px;
    opacity: 0.5;
    background: none;
    border: none;
    color: var(--bs-body-color, #212529);
}

.studio-dialog-close:hover
{
    opacity: 1;
}

.studio-dialog-body
{
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
}

.studio-dialog-footer
{
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--bs-border-color, #dee2e6);
}

/* File list in dialog */
.studio-file-list
{
    list-style: none;
    margin: 0;
    padding: 0;
}

.studio-file-item
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--bs-border-color, #dee2e6);
}

.studio-file-item:hover
{
    background: var(--bs-tertiary-bg, #f8f9fa);
}

.studio-file-item.selected
{
    background: rgba(13, 110, 253, 0.08);
}

.studio-file-name
{
    font-weight: 500;
}

.studio-file-meta
{
    font-size: 11px;
    color: var(--bs-secondary-color, #6c757d);
}

.studio-file-actions
{
    display: flex;
    gap: 4px;
}

.studio-file-delete
{
    font-size: 12px;
    opacity: 0.4;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--bs-danger, #dc3545);
    padding: 2px 4px;
}

.studio-file-delete:hover
{
    opacity: 1;
}

/* ========================================================================
   BUTTONS
   ======================================================================== */

.studio-btn
{
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 12px;
    border: 1px solid var(--bs-border-color, #dee2e6);
    background: var(--bs-body-bg, #fff);
    color: var(--bs-body-color, #212529);
    cursor: pointer;
    white-space: nowrap;
}

.studio-btn:hover
{
    background: var(--bs-tertiary-bg, #f8f9fa);
}

.studio-btn.primary
{
    background: var(--bs-primary, #0d6efd);
    color: #fff;
    border-color: var(--bs-primary, #0d6efd);
}

.studio-btn.primary:hover
{
    opacity: 0.9;
}

.studio-btn.danger
{
    color: var(--bs-danger, #dc3545);
}

.studio-btn.active
{
    background: var(--bs-primary, #0d6efd);
    color: #fff;
    border-color: var(--bs-primary, #0d6efd);
}

.studio-btn i
{
    font-size: 13px;
}

/* Tool button (for shape/shape studio) */
.studio-tool-btn
{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid transparent;
    background: none;
    cursor: pointer;
    font-size: 16px;
    color: var(--bs-body-color, #212529);
    opacity: 0.6;
}

.studio-tool-btn:hover
{
    background: var(--bs-tertiary-bg, #f8f9fa);
    opacity: 1;
}

.studio-tool-btn.active
{
    background: var(--bs-primary, #0d6efd);
    color: #fff;
    opacity: 1;
}

/* ========================================================================
   UTILITY
   ======================================================================== */

.studio-separator
{
    width: 1px;
    height: 20px;
    background: var(--bs-border-color, #dee2e6);
    margin: 0 4px;
}

.studio-empty
{
    text-align: center;
    padding: 40px 20px;
    color: var(--bs-secondary-color, #6c757d);
    font-size: 13px;
}

.studio-empty i
{
    font-size: 32px;
    display: block;
    margin-bottom: 8px;
    opacity: 0.3;
}