/* ==========================================================================
   PHOTOSHOP WEB STUDIO - DARK THEME & LAYOUT STYLES
   ========================================================================== */

:root {
    --ps-bg-darkest: #181818;
    --ps-bg-dark: #202020;
    --ps-bg-panel: #262626;
    --ps-bg-panel-light: #323232;
    --ps-border: #383838;
    --ps-border-light: #484848;
    --ps-accent: #0078d4;
    --ps-accent-hover: #1084d8;
    --ps-text-main: #e0e0e0;
    --ps-text-muted: #999999;
    --ps-text-dim: #707070;
}

/* Modal Wrapper */
#photoStudioModal {
    user-select: none;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

#photoStudioModal.hidden,
#photoStudioModal .hidden,
.ps-hidden {
    display: none !important;
}

/* Main Studio Window */
.ps-window {
    background-color: var(--ps-bg-dark);
    color: var(--ps-text-main);
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

/* Scrollbar Styling for Studio Panels */
.ps-scrollbar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.ps-scrollbar::-webkit-scrollbar-track {
    background: var(--ps-bg-dark);
}
.ps-scrollbar::-webkit-scrollbar-thumb {
    background: var(--ps-border-light);
    border-radius: 3px;
}
.ps-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #606060;
}

/* Top Menu Dropdowns */
.ps-menu-item {
    position: relative;
}
.ps-menu-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 120;
    min-width: 220px;
    background-color: var(--ps-bg-panel);
    border: 1px solid var(--ps-border-light);
    border-radius: 4px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    padding: 4px 0;
}
.ps-menu-item:hover .ps-menu-dropdown,
.ps-menu-item.active .ps-menu-dropdown {
    display: block;
}
.ps-menu-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 6px 14px;
    font-size: 12px;
    color: var(--ps-text-main);
    text-align: left;
    transition: background-color 0.1s;
    background: transparent;
    border: none;
    cursor: pointer;
}
.ps-menu-action:hover {
    background-color: var(--ps-accent);
    color: #ffffff;
}
.ps-menu-divider {
    height: 1px;
    background-color: var(--ps-border);
    margin: 4px 0;
}

/* Toolbar Buttons */
.ps-tool-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: #c4c4c4;
    transition: all 0.15s;
    position: relative;
    background: transparent;
    border: 1px solid transparent;
}
.ps-tool-btn:hover {
    background-color: var(--ps-bg-panel-light);
    color: #ffffff;
    border-color: var(--ps-border-light);
}
.ps-tool-btn.active {
    background-color: #3b3b3b;
    color: #38bdf8;
    border-color: #0284c7;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* Tooltip on hover */
.ps-tool-btn[data-tip]:hover::after {
    content: attr(data-tip);
    position: absolute;
    left: 42px;
    top: 50%;
    transform: translateY(-50%);
    background-color: #111111;
    color: #ffffff;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    z-index: 150;
    pointer-events: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    border: 1px solid var(--ps-border-light);
}

/* Checkerboard Background for Transparent Canvas */
.ps-checkerboard {
    background-color: #1a1a1a;
    background-image: 
        linear-gradient(45deg, #222222 25%, transparent 25%), 
        linear-gradient(-45deg, #222222 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #222222 75%), 
        linear-gradient(-45deg, transparent 75%, #222222 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

/* Canvas Viewport */
.ps-canvas-viewport {
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: default;
}
.ps-canvas-viewport.tool-hand {
    cursor: grab;
}
.ps-canvas-viewport.tool-hand:active {
    cursor: grabbing;
}
.ps-canvas-viewport.tool-crosshair {
    cursor: crosshair;
}
.ps-canvas-viewport.tool-eyedropper {
    cursor: cell;
}
.ps-canvas-viewport.tool-text {
    cursor: text;
}

/* Canvas Container with drop shadow */
.ps-canvas-container {
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05);
    background-color: transparent;
    transform-origin: center center;
}

/* Brush Cursor Ring */
#ps-brush-cursor {
    position: absolute;
    border: 1.5px solid rgba(255, 255, 255, 0.85);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 2px rgba(0,0,0,0.8);
    display: none;
    z-index: 100;
}

/* Rulers */
.ps-ruler-top {
    height: 18px;
    background: #232323;
    border-bottom: 1px solid #333333;
    font-size: 9px;
    color: #777777;
    overflow: hidden;
    position: relative;
}
.ps-ruler-left {
    width: 18px;
    background: #232323;
    border-right: 1px solid #333333;
    font-size: 9px;
    color: #777777;
    overflow: hidden;
    position: relative;
}

/* Crop Box Overlay */
.ps-crop-overlay {
    position: absolute;
    border: 1.5px dashed #38bdf8;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.65);
    display: none;
    z-index: 90;
    pointer-events: all;
    cursor: move;
}
.ps-crop-grid {
    position: absolute;
    inset: 0;
    pointer-events: none;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
}
.ps-crop-grid div {
    border: 0.5px solid rgba(255, 255, 255, 0.25);
}
.ps-crop-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #ffffff;
    border: 1.5px solid #0284c7;
    border-radius: 2px;
}
.ps-crop-handle.tl { top: -5px; left: -5px; cursor: nwse-resize; }
.ps-crop-handle.tr { top: -5px; right: -5px; cursor: nesw-resize; }
.ps-crop-handle.bl { bottom: -5px; left: -5px; cursor: nesw-resize; }
.ps-crop-handle.br { bottom: -5px; right: -5px; cursor: nwse-resize; }
.ps-crop-handle.tc { top: -5px; left: calc(50% - 5px); cursor: ns-resize; }
.ps-crop-handle.bc { bottom: -5px; left: calc(50% - 5px); cursor: ns-resize; }
.ps-crop-handle.ml { top: calc(50% - 5px); left: -5px; cursor: ew-resize; }
.ps-crop-handle.mr { top: calc(50% - 5px); right: -5px; cursor: ew-resize; }

/* Custom Sliders */
.ps-range {
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: #404040;
    border-radius: 2px;
    outline: none;
    transition: background 0.15s;
}
.ps-range:hover {
    background: #505050;
}
.ps-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #0ea5e9;
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.5);
    transition: transform 0.1s;
}
.ps-range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

/* Right Panel Tabs */
.ps-tab-btn {
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--ps-text-muted);
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
    background: transparent;
    border-top: none;
    border-left: none;
    border-right: none;
    cursor: pointer;
}
.ps-tab-btn:hover {
    color: var(--ps-text-main);
}
.ps-tab-btn.active {
    color: #38bdf8;
    border-bottom-color: #38bdf8;
}

/* Preset Card in Filters */
.ps-filter-card {
    background-color: #2b2b2b;
    border: 1px solid #3c3c3c;
    border-radius: 6px;
    padding: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s;
}
.ps-filter-card:hover {
    background-color: #383838;
    border-color: #0284c7;
    transform: translateY(-1px);
}
.ps-filter-card.active {
    border-color: #38bdf8;
    background-color: #1e3a5f;
    box-shadow: 0 0 0 1px #38bdf8;
}

/* Layers item in Layers panel */
.ps-layer-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: #2a2a2a;
    border: 1px solid #383838;
    border-radius: 4px;
    margin-bottom: 4px;
    font-size: 12px;
    transition: background 0.1s;
}
.ps-layer-item:hover {
    background: #333333;
}
.ps-layer-item.active {
    background: #1e3a5f;
    border-color: #0284c7;
    color: #ffffff;
}

/* History log item */
.ps-history-item {
    padding: 5px 10px;
    font-size: 11px;
    color: #b0b0b0;
    cursor: pointer;
    border-left: 2px solid transparent;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.1s;
}
.ps-history-item:hover {
    background: #323232;
    color: #ffffff;
}
.ps-history-item.active {
    background: #2b3a4a;
    border-left-color: #38bdf8;
    color: #ffffff;
    font-weight: 600;
}
.ps-history-item.undone {
    opacity: 0.45;
    text-decoration: line-through;
}

/* Draggable on-canvas Text Object */
.ps-text-element {
    position: absolute;
    user-select: none;
    cursor: move;
    padding: 4px 8px;
    border: 1px dashed transparent;
    transition: border-color 0.15s;
    line-height: 1.2;
}
.ps-text-element:hover,
.ps-text-element.selected {
    border-color: #38bdf8;
    background: rgba(56, 189, 248, 0.08);
}