/* ===== CRT EFFECTS ===== */
.crt-monitor {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    visibility: hidden;
    opacity: 0;
}

body.terminal-ready .crt-monitor {
    visibility: visible;
    opacity: 1;
}

.crt-monitor::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, transparent 60%, rgba(0,0,0,0.15) 80%, rgba(0,0,0,0.4) 100%);
    pointer-events: none;
    z-index: 101;
}

body.low-power .glow,
body.effects-low .glow {
    text-shadow: 0 0 1px currentColor;
}

/* ===== MAIN LAYOUT ===== */
.screen-content {
    position: relative;
    z-index: 1;
    height: 100%;
    padding: 15px;
    display: flex;
    flex-direction: column;
    transform: translateZ(0);
    contain: layout paint style;
}

/* ===== HEADER ===== */
.header-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    height: 90px;
    flex-shrink: 0;
}

.header-panel {
    flex: 1;
    border: 1px solid var(--phosphor-dim);
    background:
        linear-gradient(90deg, rgba(32,194,14,0.08), transparent 22%),
        linear-gradient(180deg, rgba(255,255,255,0.025), transparent 36%),
        var(--panel-bg);
    padding: 10px 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow:
        inset 0 0 30px rgba(32, 194, 14, 0.055),
        0 0 0 1px rgba(32, 194, 14, 0.02);
    min-width: 0;
    overflow: hidden;
    contain: layout paint style;
}

.system-title {
    font-size: var(--font-size-title);
    letter-spacing: 2px;
    color: var(--phosphor-glow);
    text-shadow: 0 0 10px var(--phosphor), 0 0 20px var(--phosphor-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-info {
    text-align: right;
    font-size: var(--font-size-small);
    opacity: 0.7;
    flex-shrink: 0;
    margin-left: 15px;
}
.header-info .hl { color: var(--amber); }

.status-bar {
    display: flex;
    gap: 15px;
    font-size: var(--font-size-tiny);
    opacity: 0.6;
}
.status-item { display: flex; align-items: center; gap: 4px; }
.status-button {
    font: inherit;
    cursor: pointer;
    appearance: none;
}
.status-button:focus-visible {
    outline: 1px solid var(--amber);
    outline-offset: 2px;
}
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--phosphor); box-shadow: 0 0 4px var(--phosphor); }
.status-dot.warn { background: var(--amber); box-shadow: 0 0 4px var(--amber); }
.status-dot.err { background: var(--red); box-shadow: 0 0 4px var(--red); }

/* ===== HOLOGRAM PANEL ===== */
.hologram-panel {
    width: 140px;
    border: 1px solid var(--phosphor-dim);
    background:
        radial-gradient(circle at 50% 35%, rgba(0,212,170,0.08), transparent 58%),
        var(--panel-bg-deep);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    contain: layout paint style;
}
.hologram-title {
    font-size: var(--font-size-tiny);
    text-align: center;
    padding: 3px;
    border-bottom: 1px solid var(--phosphor-dim);
    letter-spacing: 1px;
    opacity: 0.6;
}
.hologram-container {
    flex: 1;
    position: relative;
    min-height: 0;
}
#hologramCanvas {
    width: 100%;
    height: 100%;
}
@media (max-width: 1000px) {
    .hologram-panel { display: none; }
}
@media (max-width: 800px) {
    .header-info { display: none; }
}

/* ===== MAIN CONTAINER ===== */
.main-container {
    flex: 1;
    display: flex;
    gap: 15px;
    min-height: 0;
}

/* ===== LEFT MENU ===== */
.menu-panel {
    width: 280px;
    border: 1px solid var(--phosphor-dim);
    background:
        linear-gradient(180deg, rgba(255,176,0,0.025), transparent 22%),
        var(--panel-bg);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    box-shadow:
        inset 0 0 30px rgba(32, 194, 14, 0.035),
        0 0 18px rgba(0, 0, 0, 0.28);
    contain: layout paint style;
}

.menu-title {
    padding: 10px 15px;
    border-bottom: 1px solid var(--phosphor-dim);
    font-size: var(--font-size-small);
    color: var(--amber);
    letter-spacing: 2px;
    text-align: center;
    background: rgba(0, 20, 0, 0.3);
}

.menu-list {
    flex: 1;
    padding: clamp(2px, 0.8vh, 8px) 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.menu-item {
    appearance: none;
    width: 100%;
    height: clamp(28px, calc((var(--viewport-height) - 260px) / 13), 42px);
    min-height: clamp(28px, calc((var(--viewport-height) - 260px) / 13), 42px);
    padding: 0 clamp(10px, 1.2vw, 16px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 7px;
    position: relative;
    /* Capped below --font-size-base: the DOS bitmap font has square glyphs,
       so 16px labels overflow the fixed-width panel. 13.5px keeps the longest
       label (/LOAD DATABASE) inside 280px with room to spare. */
    font-size: clamp(10px, 1.5vh, 13.5px);
    letter-spacing: 0;
    transition:
        background-color 0.14s var(--ui-ease),
        color 0.14s var(--ui-ease),
        border-color 0.14s var(--ui-ease);
    background: transparent;
    color: inherit;
    font-family: inherit;
    text-align: left;
    outline: none;
    border: 0;
    border-left: 3px solid transparent;
    touch-action: manipulation;
}

.menu-item::after {
    content: "";
    position: absolute;
    top: 8px;
    bottom: 8px;
    right: 10px;
    width: 1px;
    background: var(--panel-edge);
    opacity: 0;
    transform: scaleY(0.4);
    transition: opacity 0.14s var(--ui-ease), transform 0.14s var(--ui-ease);
}

.menu-item:hover {
    background: rgba(32, 194, 14, 0.1);
}

.menu-item:focus-visible {
    background: rgba(0, 212, 170, 0.12);
    box-shadow: inset 0 0 0 1px var(--cyan);
}

.menu-item.selected {
    background: rgba(32, 194, 14, 0.2);
    border-left-color: var(--phosphor);
    color: var(--phosphor-glow);
    text-shadow: 0 0 5px var(--phosphor);
}

.menu-item.selected::after {
    opacity: 1;
    transform: scaleY(1);
}

.menu-item .icon {
    width: 16px;
    text-align: center;
    color: var(--cyan);
    flex-shrink: 0;
}

.menu-item span:not(.icon) {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.menu-item.admin-cmd {
    color: var(--red);
}
.menu-item.admin-cmd .icon {
    color: var(--red);
}
.menu-item.admin-cmd.locked {
    opacity: 0.4;
    color: #444;
}
.menu-item.admin-cmd.locked .icon {
    color: #444;
}

.menu-separator {
    height: 1px;
    background: var(--phosphor-dim);
    margin: clamp(2px, 0.8vh, 8px) 15px;
    flex-shrink: 0;
}

.menu-footer {
    padding: clamp(6px, 0.9vh, 10px) 15px;
    border-top: 1px solid var(--phosphor-dim);
    font-size: var(--font-size-tiny);
    color: #555;
    text-align: center;
    flex-shrink: 0;
}

.admin-badge {
    display: none;
    color: var(--red);
    text-shadow: 0 0 6px var(--red);
    animation: pulse 2s ease-in-out infinite;
    font-size: var(--font-size-tiny);
    text-align: center;
    padding: clamp(5px, 0.75vh, 8px);
    border-top: 1px solid var(--phosphor-dim);
    flex-shrink: 0;
}
.admin-badge.active { display: block; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }