/* Photoshop Web — main layout & resets */
* { box-sizing: border-box; }
html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    font-family: "Adobe Clean", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    font-size: 11px;
    line-height: 1.3;
    user-select: none;
    -webkit-user-select: none;
    color: var(--text);
    background: var(--app-bg);
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

button {
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 0;
}

input[type="text"], input[type="number"], select {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text);
    padding: 3px 6px;
    border-radius: 2px;
    outline: none;
    height: 22px;
}
input[type="text"]:focus, input[type="number"]:focus, select:focus {
    border-color: var(--accent);
    background: var(--input-bg-focus);
}

.hidden { display: none !important; }

body {
    display: grid;
    grid-template-rows: 28px 28px 36px 28px 1fr 22px;
    grid-template-areas:
        "titlebar"
        "menubar"
        "optionsbar"
        "doctabs"
        "workspace"
        "statusbar";
    height: 100vh;
}

#app-titlebar { grid-area: titlebar; }
#menubar { grid-area: menubar; }
#options-bar { grid-area: optionsbar; }
#doc-tabs { grid-area: doctabs; }
#workspace { grid-area: workspace; }
#statusbar { grid-area: statusbar; }

/* Title bar */
#app-titlebar {
    display: flex;
    align-items: center;
    padding: 0 8px;
    background: var(--titlebar-bg);
    border-bottom: 1px solid var(--border);
    -webkit-app-region: drag;
}
.tb-app { display: flex; align-items: center; gap: 8px; }
.tb-app-icon {
    width: 18px; height: 18px;
    background: linear-gradient(135deg, #001e36, #31a8ff);
    color: #99e2ff;
    font-weight: 700;
    font-size: 11px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 2px;
    font-family: "Adobe Clean", sans-serif;
}
.tb-app-name { font-weight: 600; font-size: 11px; }
.tb-app-version { color: var(--text-muted); font-size: 10px; }
.tb-center { flex: 1; }
.tb-right { display: flex; gap: 2px; }
.tb-icon-btn {
    width: 28px; height: 22px;
    color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    border-radius: 2px;
}
.tb-icon-btn:hover { background: var(--hover-bg); color: var(--text); }
.tb-icon-btn.tb-close:hover { background: #e81123; color: #fff; }
.tb-icon-btn svg { display: block; }

/* Iconified state: hide everything except the title bar; show floating restore widget */
body.ps-iconified > *:not(#app-titlebar):not(.ps-restore-pill):not(.dialog-overlay) {
    display: none !important;
}
body.ps-iconified {
    grid-template-rows: 28px;
    grid-template-areas: "titlebar";
    background: transparent;
}
body.ps-iconified #app-titlebar {
    background: var(--titlebar-bg);
    border-bottom: 1px solid var(--border);
}
.ps-restore-pill {
    position: fixed;
    left: 50%;
    bottom: 16px;
    transform: translateX(-50%);
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 6px 14px 6px 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 6px 20px rgba(0,0,0,.4);
    cursor: pointer;
    color: var(--text);
    z-index: 9999;
    font-size: 11px;
    font-weight: 600;
}
.ps-restore-pill:hover { background: var(--button-bg-hover); }
.ps-restore-pill .ps-mini-logo {
    width: 22px; height: 22px;
    border-radius: 4px;
    background: linear-gradient(135deg, #001e36, #31a8ff);
    color: #99e2ff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 12px;
}

/* Close screen */
.ps-closed-screen {
    position: fixed;
    inset: 0;
    background: var(--app-bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 10001;
    text-align: center;
    font-size: 13px;
}
.ps-closed-screen .logo {
    width: 80px; height: 80px;
    border-radius: 12px;
    background: linear-gradient(135deg, #001e36, #31a8ff);
    color: #99e2ff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 36px;
}
.ps-closed-screen h2 { margin: 0; font-size: 18px; font-weight: 600; }
.ps-closed-screen p { margin: 0; color: var(--text-muted); max-width: 380px; line-height: 1.6; }
.ps-closed-screen button {
    margin-top: 4px;
    padding: 8px 18px;
    border-radius: 18px;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}
.ps-closed-screen button:hover { background: var(--accent-hover); }

/* Document tabs */
#doc-tabs {
    background: var(--doctabs-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: flex-end;
    padding: 0 4px;
    overflow-x: auto;
    overflow-y: hidden;
}
.doc-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 26px;
    padding: 0 8px 0 10px;
    background: var(--doctab-bg);
    border: 1px solid var(--border);
    border-bottom: 0;
    border-top-left-radius: 2px;
    border-top-right-radius: 2px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 11px;
    margin-right: 1px;
    white-space: nowrap;
}
.doc-tab.active {
    background: var(--workspace-bg);
    color: var(--text);
    border-color: var(--border);
}
.doc-tab-close {
    width: 14px; height: 14px;
    color: var(--text-muted);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    line-height: 1;
}
.doc-tab-close:hover { background: var(--hover-bg); color: var(--text); }

/* Workspace */
#workspace {
    display: grid;
    grid-template-columns: 38px 1fr 280px;
    grid-template-areas: "tools viewport panels";
    background: var(--workspace-bg);
    overflow: hidden;
    min-height: 0;
}

#tools-panel { grid-area: tools; }
#viewport-area { grid-area: viewport; }
#panels-area { grid-area: panels; }

/* Scrollbar styling Photoshop-like */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border: 2px solid var(--scrollbar-track);
    border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }
::-webkit-scrollbar-corner { background: var(--scrollbar-track); }

/* Tooltip floating */
.ps-tooltip {
    position: fixed;
    background: var(--tooltip-bg);
    color: var(--tooltip-text);
    padding: 4px 8px;
    border-radius: 2px;
    font-size: 11px;
    pointer-events: none;
    z-index: 10000;
    box-shadow: 0 2px 8px rgba(0,0,0,.3);
    white-space: nowrap;
}
.ps-tooltip .shortcut { color: var(--text-muted); margin-left: 8px; }

/* Demo banner (GitHub Pages) */
#demo-banner {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 10002;
    background: linear-gradient(90deg, #1473e6, #31a8ff);
    color: #fff;
    padding: 6px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    box-shadow: 0 2px 6px rgba(0,0,0,.3);
}
#demo-banner b { font-weight: 700; }
#demo-banner code {
    background: rgba(0,0,0,.25);
    padding: 1px 6px;
    border-radius: 3px;
    font-family: monospace;
}
#demo-banner .demo-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #aaff80;
    box-shadow: 0 0 8px #aaff80;
    animation: demo-pulse 1.8s ease-in-out infinite;
}
@keyframes demo-pulse {
    0%,100% { opacity: 1; }
    50% { opacity: .4; }
}
#demo-banner span { flex: 1; }
#demo-banner button {
    width: 22px; height: 22px;
    color: #fff;
    border-radius: 50%;
    font-size: 16px;
    line-height: 1;
}
#demo-banner button:hover { background: rgba(0,0,0,.2); }
body.has-demo-banner {
    grid-template-rows: 28px 28px 28px 36px 28px 1fr 22px;
    grid-template-areas:
        "demo"
        "titlebar"
        "menubar"
        "optionsbar"
        "doctabs"
        "workspace"
        "statusbar";
}
body.has-demo-banner #demo-banner { position: static; grid-area: demo; }

/* Generic icon button */
.icon-btn {
    width: 22px; height: 22px;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    border-radius: 2px;
    cursor: pointer;
}
.icon-btn:hover { background: var(--hover-bg); color: var(--text); }
.icon-btn.active { color: var(--accent); }