.demo {
    min-height: 240px;
}

.demo-layout {
    display: flex;
    gap: 0;
    height: 260px;
}

@media (min-width: 640px) {
    .demo-layout {
        height: 300px;
    }
}

/* Barn view - left panel */
.barn-view {
    position: relative;
    flex: 1 1 65%;
    overflow: hidden;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.barn-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 1;
}

/* Bird dots */
.bird {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(107, 143, 113, 0.8);
    transition: left 1.5s cubic-bezier(0.4, 0, 0.2, 1),
                top 1.5s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.6s ease,
                box-shadow 0.6s ease;
}

/* Piling zone highlight */
.piling-zone {
    position: absolute;
    left: 15%;
    top: 20%;
    width: 35%;
    height: 45%;
    border: 2px solid transparent;
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.6s ease, border-color 0.6s ease, background 0.6s ease;
}

/* LED emitters — radial light pulses from ceiling */
.led-emitter {
    position: absolute;
    width: 0;
    height: 0;
    pointer-events: none;
}

.led-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
    border-radius: 50%;
    border: 2px solid rgba(107, 143, 113, 0.7);
    box-shadow: 0 0 6px rgba(107, 143, 113, 0.4);
    opacity: 0;
    transform: scale(0.5);
    pointer-events: none;
}

/* Speaker emitters — concentric sound wave arcs */
.speaker-emitter {
    position: absolute;
    width: 0;
    height: 0;
    pointer-events: none;
}

.sound-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    margin: -5px 0 0 -5px;
    border-radius: 50%;
    border: 1.5px solid rgba(250, 247, 242, 0.6);
    box-shadow: 0 0 4px rgba(250, 247, 242, 0.3);
    opacity: 0;
    transform: scale(0.5);
    pointer-events: none;
}

/* Alert badge */
.alert-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    background: #E85D4C;
    color: white;
    font-size: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Metrics panel - right side */
.metrics-panel {
    flex: 0 0 35%;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    justify-content: center;
}

@media (min-width: 640px) {
    .metrics-panel {
        padding: 20px;
        gap: 12px;
    }
}

.status-pill {
    display: inline-block;
    align-self: flex-start;
    padding: 4px 12px;
    border-radius: 9999px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(107, 143, 113, 0.2);
    color: #6B8F71;
    transition: background 0.5s ease, color 0.5s ease;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
}

.metric-label {
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 9px;
}

.metric-value {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 700;
    font-size: 12px;
    transition: color 0.4s ease;
}

.demo-step {
    margin-top: auto;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

/* ========================================
   PHASE: MONITORING (default)
   ======================================== */
[data-phase="monitoring"] .bird {
    background: rgba(107, 143, 113, 0.8);
    box-shadow: 0 0 4px rgba(107, 143, 113, 0.3);
}

/* ========================================
   PHASE: PILING
   ======================================== */
[data-phase="piling"] .bird {
    background: rgba(232, 93, 76, 0.7);
    box-shadow: 0 0 6px rgba(232, 93, 76, 0.4);
}

[data-phase="piling"] .piling-zone {
    opacity: 1;
    border-color: rgba(232, 93, 76, 0.7);
    background: rgba(232, 93, 76, 0.08);
}

[data-phase="piling"] .alert-badge {
    opacity: 1;
    transform: translateY(0);
}

[data-phase="piling"] .status-pill {
    background: rgba(232, 93, 76, 0.2);
    color: #E85D4C;
}

/* ========================================
   PHASE: CLASSIFY
   ======================================== */
[data-phase="classify"] .bird {
    background: rgba(232, 93, 76, 0.7);
    box-shadow: 0 0 6px rgba(232, 93, 76, 0.4);
}

[data-phase="classify"] .piling-zone {
    opacity: 1;
    border-color: rgba(232, 93, 76, 0.9);
    background: rgba(232, 93, 76, 0.12);
    animation: pulse-zone 0.8s ease-in-out infinite;
}

[data-phase="classify"] .alert-badge {
    opacity: 1;
    transform: translateY(0);
    animation: pulse-badge 0.6s ease-in-out infinite;
}

[data-phase="classify"] .status-pill {
    background: rgba(232, 93, 76, 0.25);
    color: #E85D4C;
}

/* ========================================
   PHASE: INTERVENE
   ======================================== */
[data-phase="intervene"] .bird {
    background: rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 8px rgba(107, 143, 113, 0.5);
}

[data-phase="intervene"] .piling-zone {
    opacity: 0.4;
    border-color: rgba(107, 143, 113, 0.5);
    background: transparent;
}

[data-phase="intervene"] .led-ring {
    opacity: 1;
    animation: led-pulse 1.6s ease-out infinite;
}

[data-phase="intervene"] .led-ring:nth-child(2) {
    animation-delay: 0.4s;
}

[data-phase="intervene"] .led-ring:nth-child(3) {
    animation-delay: 0.8s;
}

[data-phase="intervene"] .led-emitter:nth-child(4) .led-ring {
    animation-delay: 0.2s;
}

[data-phase="intervene"] .led-emitter:nth-child(5) .led-ring {
    animation-delay: 0.5s;
}

[data-phase="intervene"] .sound-ring {
    opacity: 1;
    animation: sound-wave 1.4s ease-out infinite;
}

[data-phase="intervene"] .sound-ring:nth-child(2) {
    animation-delay: 0.35s;
}

[data-phase="intervene"] .sound-ring:nth-child(3) {
    animation-delay: 0.7s;
}

[data-phase="intervene"] .speaker-emitter:nth-child(7) .sound-ring {
    animation-delay: 0.2s;
}

[data-phase="intervene"] .alert-badge {
    opacity: 0.6;
    transform: translateY(0);
}

[data-phase="intervene"] .status-pill {
    background: rgba(107, 143, 113, 0.25);
    color: #6B8F71;
}

/* ========================================
   PHASE: RESOLVED
   ======================================== */
[data-phase="resolved"] .bird {
    background: rgba(107, 143, 113, 0.85);
    box-shadow: 0 0 4px rgba(107, 143, 113, 0.4);
}

[data-phase="resolved"] .piling-zone {
    opacity: 0;
}

[data-phase="resolved"] .alert-badge {
    opacity: 0;
    transform: translateY(-4px);
}

[data-phase="resolved"] .status-pill {
    background: rgba(107, 143, 113, 0.2);
    color: #6B8F71;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes led-pulse {
    0% {
        transform: scale(0.5);
        opacity: 0.9;
        border-color: rgba(107, 143, 113, 0.9);
        box-shadow: 0 0 8px rgba(107, 143, 113, 0.6);
    }
    70% {
        opacity: 0.3;
    }
    100% {
        transform: scale(6);
        opacity: 0;
        border-color: rgba(107, 143, 113, 0.1);
        box-shadow: 0 0 2px rgba(107, 143, 113, 0);
    }
}

@keyframes sound-wave {
    0% {
        transform: scale(0.5);
        opacity: 0.85;
        border-color: rgba(250, 247, 242, 0.8);
        box-shadow: 0 0 6px rgba(250, 247, 242, 0.5);
    }
    60% {
        opacity: 0.35;
    }
    100% {
        transform: scale(5);
        opacity: 0;
        border-color: rgba(250, 247, 242, 0.05);
        box-shadow: 0 0 1px rgba(250, 247, 242, 0);
    }
}

@keyframes pulse-zone {
    0%, 100% { border-color: rgba(232, 93, 76, 0.9); }
    50% { border-color: rgba(232, 93, 76, 0.4); }
}

@keyframes pulse-badge {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ========================================
   REDUCED MOTION
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .bird {
        transition: none !important;
    }
    .led-ring,
    .sound-ring {
        animation: none !important;
        opacity: 0 !important;
    }
    .piling-zone {
        animation: none !important;
        transition: none !important;
    }
    .alert-badge {
        animation: none !important;
        transition: none !important;
    }
    .status-pill {
        transition: none !important;
    }
}