/* Pixelbridge — HMI-optimized remote desktop client */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-tertiary: #252836;
    --text-primary: #e4e6ed;
    --text-secondary: #8b8fa3;
    --accent: #4a7dff;
    --accent-hover: #5e8eff;
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #f87171;
    --border: #2d3042;
    --radius: 6px;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
}

/* --- Layout --- */

#app {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

#toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 10;
}

#toolbar .brand {
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.5px;
    color: var(--accent);
    margin-right: 8px;
    white-space: nowrap;
}

#toolbar .separator {
    width: 1px;
    height: 24px;
    background: var(--border);
}

#viewport {
    flex: 1;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

/* noVNC canvas container */
#vnc-container {
    position: relative;
    width: 100%;
    height: 100%;
}

/* noVNC canvas — invisible, only used for keyboard/mouse input */
#vnc-container canvas:not(#video-overlay) {
    opacity: 0 !important;
}

#vnc-container canvas {
    display: block;
}

/* Connection overlay shown before connecting */
#connect-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(15, 17, 23, 0.95);
    z-index: 5;
    gap: 20px;
    transition: opacity 0.3s ease;
}

#connect-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

#connect-overlay h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

#connect-overlay p {
    color: var(--text-secondary);
    font-size: 14px;
    max-width: 400px;
    text-align: center;
    line-height: 1.5;
}

/* --- Form inputs --- */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 300px;
}

.form-group label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus {
    border-color: var(--accent);
}

/* --- Buttons --- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.btn:hover {
    background: var(--border);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    font-weight: 500;
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-danger {
    border-color: var(--danger);
    color: var(--danger);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.15);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* --- Status indicator --- */

#status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

#status .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    transition: background 0.3s;
}

#status.connected .dot {
    background: var(--success);
}

#status.error .dot {
    background: var(--danger);
}

/* --- Audio level meter --- */

#audio-meter {
    display: flex;
    align-items: center;
    gap: 4px;
}

#audio-meter .bar {
    width: 3px;
    height: 14px;
    background: var(--border);
    border-radius: 2px;
    transition: background 0.1s;
}

#audio-meter .bar.active {
    background: var(--success);
}

/* --- Spacer for toolbar layout --- */

.spacer {
    flex: 1;
}

/* --- Fullscreen adjustments --- */

:fullscreen #toolbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0;
    transition: opacity 0.3s;
}

:fullscreen #toolbar:hover {
    opacity: 1;
}

:fullscreen #viewport {
    width: 100vw;
    height: 100vh;
}

/* --- Notification toast --- */

#toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 20px;
    color: var(--text-primary);
    font-size: 13px;
    z-index: 100;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
}

#toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}