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

body {
    background: #191923;
    color: #fff;
    font-family: 'Consolas', 'Courier New', monospace;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

/* -- Start Screen -- */
#start-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: opacity 0.3s ease;
}

#start-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

#particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.start-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 20px;
}

.title {
    font-size: 52px;
    color: #00ffc8;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

/* -- Step Wizard -- */
.step-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 24px;
}

.step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #3c3c46;
    transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}

.step-dot.active {
    background: #00ffc8;
    transform: scale(1.3);
    box-shadow: 0 0 8px #00ffc880;
}

.step-viewport {
    overflow: hidden;
    width: 100%;
    max-width: 800px;
}

.step-track {
    display: flex;
    width: 300%;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.step {
    width: calc(100% / 3);
    flex-shrink: 0;
    padding: 0 10px;
    box-sizing: border-box;
}

.step-heading {
    font-size: 22px;
    color: #b4b4b4;
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.step-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
}

.step-btn {
    font-family: inherit;
    font-size: 18px;
    font-weight: bold;
    padding: 10px 32px;
    border: 2px solid #00ffc8;
    border-radius: 6px;
    background: transparent;
    color: #00ffc8;
    cursor: pointer;
    letter-spacing: 1px;
    transition: background 0.15s, color 0.15s;
}

.step-btn:hover {
    background: #00ffc8;
    color: #191923;
}

.back-btn {
    border-color: #5a5a6e;
    color: #8c8c8c;
}

.back-btn:hover {
    background: #5a5a6e;
    color: #fff;
}

.start-btn-final {
    font-size: 22px;
    padding: 12px 50px;
    letter-spacing: 2px;
}

.section-label {
    font-size: 20px;
    color: #b4b4b4;
    text-align: left;
    margin-bottom: 12px;
}

/* -- Theme Cards -- */
.card-row {
    display: flex;
    gap: 50px;
    justify-content: center;
    margin-bottom: 30px;
}

.theme-card {
    width: 340px;
    height: 200px;
    background: #1e2032;
    border: 1px solid #3c3c46;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: border-color 0.15s, background 0.15s;
    outline: none;
}

.theme-card:hover,
.theme-card:focus {
    border-color: #00ffc8;
    background: #282d3c;
}

.theme-card.selected {
    border: 2px solid #00ffc8;
    background: #282d3c;
}

.card-icon {
    margin-bottom: 8px;
}

.card-title {
    font-size: 26px;
    font-weight: bold;
}

.card-sub {
    font-size: 14px;
    color: #8c8c8c;
}

/* -- Mode Cards -- */
.mode-row {
    gap: 20px;
}

.mode-card {
    width: 200px;
    height: 130px;
    background: #1e2032;
    border: 1px solid #3c3c46;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: border-color 0.15s, background 0.15s;
    outline: none;
}

.mode-card:hover,
.mode-card:focus {
    border-color: #00ffc8;
    background: #282d3c;
}

.mode-card.selected {
    border: 2px solid #00ffc8;
    background: #282d3c;
}

.mode-icon {
    font-size: 32px;
    margin-bottom: 4px;
}

.mode-card .card-title {
    font-size: 16px;
}

.mode-card .card-sub {
    font-size: 12px;
}

/* -- Source Toggle -- */
.source-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.source-row .section-label {
    margin-bottom: 0;
    white-space: nowrap;
}

.source-toggle {
    display: flex;
    border: 1px solid #3c3c46;
    border-radius: 4px;
    overflow: hidden;
}

.source-btn {
    font-family: inherit;
    font-size: 14px;
    padding: 8px 18px;
    background: #23273a;
    color: #8c8c8c;
    border: none;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.source-btn + .source-btn {
    border-left: 1px solid #3c3c46;
}

.source-btn:hover {
    color: #ddd;
}

.source-btn.selected {
    background: #00ffc8;
    color: #191923;
    font-weight: bold;
}

/* -- Camera Selector -- */
.camera-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.camera-row .section-label {
    margin-bottom: 0;
    white-space: nowrap;
}

#camera-select {
    flex: 1;
    font-family: inherit;
    font-size: 16px;
    padding: 8px 12px;
    background: #23273a;
    color: #ddd;
    border: 1px solid #3c3c46;
    border-radius: 4px;
    outline: none;
    cursor: pointer;
}

#camera-select:focus {
    border-color: #00ffc8;
}

#camera-ip {
    flex: 1;
    font-family: inherit;
    font-size: 16px;
    padding: 8px 12px;
    background: #23273a;
    color: #ddd;
    border: 1px solid #3c3c46;
    border-radius: 4px;
    outline: none;
}

#camera-ip:focus {
    border-color: #00ffc8;
}

/* -- Snapshot Canvas (IP camera display) -- */
#snapshot-canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* -- High Scores -- */
.high-scores {
    font-size: 13px;
    color: #8c8c8c;
    margin-bottom: 16px;
    min-height: 20px;
}

.high-scores .hs-title {
    color: #b4b4b4;
    font-weight: bold;
    margin-bottom: 4px;
}

/* -- Start Button (inside step-nav) -- */
#start-btn:hover {
    background: #00ffc8;
    color: #191923;
}

.error-msg {
    color: #ff5050;
    font-size: 14px;
    min-height: 20px;
}

.hints {
    font-size: 14px;
    color: #646464;
    margin-top: 8px;
}

/* -- Game Container -- */
#game-container {
    position: fixed;
    inset: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

#camera-video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    touch-action: none;
}

#ptz-banner {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.7);
    color: #ffcc00;
    padding: 6px 18px;
    border-radius: 4px;
    font-size: 13px;
    z-index: 10;
    pointer-events: none;
}