:root {
    /* Base colors */
    --color-white: #ffffff;
    --color-primary: #00aafd;
    --color-danger: #e94560;
    --color-dark: #080e26;
    --color-black: #1a1a1a;
    --color-green: #1db954;

    /* Transparent variants */
    --color-white-60: #ffffff99;
    --color-white-50: #ffffff80;
    --color-white-08: #ffffff14;
    --color-white-05: #ffffff0d;
    --color-primary-20: #00aafd33;
    --color-danger-50: #e9456080;
    --color-danger-20: #e9456033;
}

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

body {
    touch-action: pan-x pan-y;
    font-family: 'Fredoka', -apple-system, BlinkMacSystemFont, sans-serif;
    background: url('../images/bg-big.png') var(--color-dark) no-repeat center center / cover;
    min-height: 100vh;
    color: var(--color-white);
}

body, html {
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 40px;
    padding: 20px 0;
}

.logo {
    display: block;
    margin-right: 20px;
}

.subtitle {
    font-size: 18px;
    color: var(--color-white-60);
}

.scanner-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hidden {
    display: none !important;
}

.scanner-container {
    width: 100%;
    max-width: 350px;
    aspect-ratio: 1;
    background: var(--color-white-05);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    border: 2px solid var(--color-primary);
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 310px;
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-white);
    border: none;
    border-radius: 50px;
    cursor: pointer;
}

.start-scan-btn {
    background: var(--color-primary);
    margin-bottom: 20px;
}

.scan-next-btn {
    margin-top: 24px;
    background: var(--color-primary);
}

.end-game-btn {
    margin-top: 16px;
    background: var(--color-danger);
}

#reader, #reader video {
    width: 100% !important;
    height: 100% !important;
}

#reader video {
    object-fit: cover !important;
    border-radius: 22px;
    position: absolute !important;
    inset: 0 !important;
}

#reader__scan_region {
    background: transparent !important;
    position: absolute !important;
    inset: 0 !important;
}

#reader__scan_region > img,
#reader__scan_region > br,
#reader > img[alt="Info icon"],
#reader__dashboard {
    display: none !important;
}

.scanner-hint {
    margin-top: 20px;
    font-size: 18px;
    color: var(--color-white-50);
}

.instructions {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.instruction-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.instruction-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary-20);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 18px;
}

.instruction-item h3 {
    font-size: 18px;
    font-weight: 600;
}

.player-section {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
}

.player-section.active {
    display: flex;
}

.player-section.active iframe {
    visibility: hidden;
    height: 0 !important;
}

.player-card {
    background: var(--color-black);
    border-radius: 24px;
    padding: 40px 30px;
    width: 100%;
    max-width: 350px;
    height: 350px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.player-card h2 {
    font-size: 24px;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 50px;
}

.play-btn-wrapper {
    position: relative;
    width: 64px;
    height: 64px;
}

.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    pointer-events: none;
}

.progress-ring-progress {
    transition: stroke-dashoffset 1s linear;
}

.play-btn {
    position: absolute;
    top: 0;
    left: 0;
    width: 64px;
    height: 64px;
    background: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.play-btn::after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-left: 20px solid var(--color-black);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 25px;
}

.play-btn.playing::after {
    border: none;
    width: 20px;
    height: 20px;
    margin-left: 22px;
    background: linear-gradient(to right, var(--color-black) 35%, transparent 35%, transparent 65%, var(--color-black) 65%);
}

.error-message {
    background: var(--color-danger-20);
    border: 1px solid var(--color-danger-50);
    padding: 16px;
    border-radius: 12px;
    margin-top: 20px;
    display: none;
}

.error-message.show {
    display: block;
}