/* ── WebEngine Control Panel — Dark Theme ─────────────────────────────── */

:root {
    --bg-primary:    #0d1117;
    --bg-secondary:  #161b22;
    --bg-tertiary:   #1c2128;
    --bg-input:      #0d1117;
    --border:        #30363d;
    --border-active: #58a6ff;
    --text-primary:  #e6edf3;
    --text-secondary:#8b949e;
    --text-muted:    #484f58;
    --accent:        #58a6ff;
    --accent-hover:  #79c0ff;
    --success:       #3fb950;
    --warning:       #d29922;
    --danger:        #f85149;
    --radius:        6px;
    --font-mono:     'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
    --font-sans:     -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-primary);
}

/* ── Layout ───────────────────────────────────────────────────────────── */

#app {
    display: grid;
    grid-template-rows: auto 1fr auto;
    grid-template-columns: 200px 1fr 300px;
    grid-template-areas:
        "header  header  header"
        "sidebar main   panel"
        "status  status  status";
    height: 100vh;
    overflow: hidden;
}

/* ── Header / URL bar ─────────────────────────────────────────────────── */

header {
    grid-area: header;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

header .logo {
    font-weight: 700;
    font-size: 15px;
    color: var(--accent);
    white-space: nowrap;
    letter-spacing: -0.3px;
}

#url-bar {
    flex: 1;
    display: flex;
    gap: 6px;
    align-items: center;
}

#url-input {
    flex: 1;
    padding: 7px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: border-color .15s;
}
#url-input:focus { border-color: var(--accent); }

/* ── Buttons ──────────────────────────────────────────────────────────── */

.btn {
    padding: 7px 16px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s;
    white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

/* ── Sidebar — sessions ───────────────────────────────────────────────── */

#sidebar {
    grid-area: sidebar;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#sidebar h3 {
    padding: 12px 14px 8px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--text-secondary);
}

#session-list {
    flex: 1;
    overflow-y: auto;
    padding: 0 8px 8px;
}

.session-item {
    padding: 8px 10px;
    margin-bottom: 4px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px solid transparent;
    transition: all .15s;
    display: flex;
    align-items: center;
    gap: 8px;
}
.session-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.session-item.active { border-color: var(--accent); color: var(--text-primary); background: var(--bg-tertiary); }
.session-item .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--success);
    flex-shrink: 0;
}
.session-item .label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-item .close-btn {
    opacity: 0;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}
.session-item:hover .close-btn { opacity: 1; }
.session-item .close-btn:hover { color: var(--danger); }

/* ── Main — browser view ──────────────────────────────────────────────── */

#main {
    grid-area: main;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

#toolbar {
    display: flex;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

#browser-view {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    position: relative;
    background: #000;
}

#browser-view img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    cursor: crosshair;
}

#browser-view .placeholder {
    color: var(--text-muted);
    font-size: 15px;
    text-align: center;
    line-height: 1.7;
}

/* ── Right panel — log + terminal ─────────────────────────────────────── */

#panel {
    grid-area: panel;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#panel .tab-bar {
    display: flex;
    border-bottom: 1px solid var(--border);
}

#panel .tab {
    flex: 1;
    padding: 8px 0;
    text-align: center;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .6px;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all .15s;
}
#panel .tab:hover { color: var(--text-primary); }
#panel .tab.active { color: var(--accent); border-bottom-color: var(--accent); }

#action-log, #terminal-panel, #screenshots-panel {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ── Screenshots panel ────────────────────────────────────────────────── */

.screenshot-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 8px;
    overflow: hidden;
    background: var(--bg-tertiary);
    transition: border-color .15s;
}
.screenshot-card:hover { border-color: var(--accent); }

.screenshot-card img {
    width: 100%;
    display: block;
    cursor: pointer;
}

.screenshot-card .meta {
    padding: 6px 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
}

.screenshot-card .meta .ts {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.screenshot-card .meta .actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.screenshot-card .meta .actions a,
.screenshot-card .meta .actions button {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    padding: 2px 4px;
    border-radius: 3px;
    text-decoration: none;
}
.screenshot-card .meta .actions a:hover,
.screenshot-card .meta .actions button:hover { color: var(--accent); background: var(--bg-input); }
.screenshot-card .meta .actions button.delete-btn:hover { color: var(--danger); }

#log-entries {
    flex: 1;
    overflow-y: auto;
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
}

.log-entry {
    padding: 4px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 8px;
}
.log-entry .ts {
    color: var(--text-muted);
    flex-shrink: 0;
    font-size: 11px;
    min-width: 60px;
}
.log-entry .msg { color: var(--text-secondary); word-break: break-word; }
.log-entry .msg.ok { color: var(--success); }
.log-entry .msg.err { color: var(--danger); }

#terminal-output {
    flex: 1;
    overflow-y: auto;
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
}

#terminal-input-row {
    display: flex;
    align-items: center;
    border-top: 1px solid var(--border);
}

#terminal-input-row span {
    padding: 8px 4px 8px 12px;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 13px;
}

#terminal-input {
    flex: 1;
    padding: 8px 12px 8px 0;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    outline: none;
}

/* ── Status bar ───────────────────────────────────────────────────────── */

#status-bar {
    grid-area: status;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 4px 16px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-secondary);
}

#status-bar .indicator {
    display: flex;
    align-items: center;
    gap: 5px;
}
.dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    display: inline-block;
}
.dot-green  { background: var(--success); }
.dot-yellow { background: var(--warning); }
.dot-red    { background: var(--danger); }

/* ── Select dropdown ──────────────────────────────────────────────────── */

select {
    padding: 7px 8px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 12px;
    outline: none;
    cursor: pointer;
}
select:focus { border-color: var(--accent); }

/* ── Scrollbar ────────────────────────────────────────────────────────── */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Hidden helper ────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Responsive ───────────────────────────────────────────────────────── */

@media (max-width: 900px) {
    #app {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr 260px auto;
        grid-template-areas:
            "header"
            "main"
            "panel"
            "status";
    }
    #sidebar { display: none; }
}