/*  variables  */
:root {
    --red: #e4002b;
    --red-dark: #b0001f;
    --yellow: #f6c300;
    --black: #0d0d0d;
    --dark: #1a1a1a;
    --mid: #2a2a2a;
    --light: #f0e8d8;
    --text: #f5f5f5;
    --muted: #ffffff;
    --radius: 8px;
    --timer-color: var(--yellow);
}

/*  reset*/
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--black);
    color: var(--text);
    font-family: 'Courier New', monospace;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('./assets/cashier.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-size: 150%;
}

/* screens*/
.screen {
    display: none;
    width: 100%;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 2rem;
}

.screen--active {
    display: flex;
}

/* intro*/
.intro-box {
    max-width: 30rem;
    width: 100%;
    text-align: center;
}

.intro-label {
    color: var(--yellow);
    font-size: 2rem;
    animation: blink 2s infinite;
    background-color: #0d0d0d;
}

.intro-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    line-height: 1.1;
    color: var(--yellow);
    text-shadow: 3px 3px 0 var(--red);
    margin-bottom: 1rem;
}

.intro-sub {
    color: var(--muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

#form-name {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

#form-name input {
    background: var(--mid);
    border: 2px solid var(--red);
    color: var(--text);
    padding: 0.75rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    border-radius: var(--radius);
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}

#form-name input:focus {
    border-color: var(--yellow);
}

.name-error {
    color: var(--red);
    font-size: 0.85rem;
    min-height: 1.2rem;
}

/* leaderboard*/
.leaderboard-wrap {
    margin-top: 1.5rem;
    border-top: 1px solid var(--mid);
    padding-top: 1rem;
}

.leaderboard-title {
    color: var(--yellow);
    font-size: 0.85rem;
    letter-spacing: 3px;
    margin-bottom: 0.75rem;
}

.leaderboard-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.3rem 0;
    font-size: 0.9rem;
    gap: 1rem;
}

.leaderboard-row img {
    width: 30px;
    height: 30px;
    object-fit: contain;
    vertical-align: middle;
}

.leaderboard-name {
    flex: 1;
    text-align: left;
}

.leaderboard-time {
    color: var(--yellow);
}

.leaderboard-empty {
    color: var(--muted);
    font-size: 0.85rem;
}

/* buttons */
.btn {
    background: var(--red);
    color: var(--text);
    border: none;
    padding: 0.75rem 1.5rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: var(--radius);
    transition: background 0.15s, transform 0.1s;
}

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

.btn:active {
    transform: scale(0.97);
}

.btn--small {
    font-size: 0.8rem;
    padding: 0.4rem 0.9rem;
}

.hidden {
    display: none !important;
}

/* topbar*/
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--dark);
    border-bottom: 2px solid var(--red);
}

.topbar-timer {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--timer-color);
    letter-spacing: 2px;
    transition: color 0.3s;
}

.topbar-timer.warn {
    color: orange;
}

.topbar-timer.danger {
    color: var(--red);
    animation: blink 0.5s infinite;
}

/*status bar */
.status-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 2rem;
    background-color: #0d0d0d;

}

.status-item {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    border: 2px solid var(--muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--muted);
    transition: all 0.3s;
}

.status-item.active {
    border-color: var(--yellow);
    color: var(--yellow);
    background: rgba(246, 195, 0, 0.1);
}

.status-item.done {
    border-color: var(--red);
    background: var(--red);
    color: white;
}

.status-divider {
    width: 2rem;
    height: 2px;
    background: var(--mid);
}

/* hints overlay */
.hint-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.hint-box {
    background: var(--dark);
    border: 2px solid var(--yellow);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* challanges*/
.challenge {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    padding: 0 1rem;
    gap: 0.5rem;
}



.challenge-title {
    color: var(--yellow);
    letter-spacing: 2px;
    font-size: 1rem;
    background-color: #0d0d0d;
    margin-bottom: -0.5rem;
}

.challenge-desc {
    color: var(--muted);
    line-height: 1.5;
    padding: 2rem;
    background-color: #0d0d0d;
}

.challenge-status {
    font-size: 0.85rem;
    color: var(--muted);
    min-height: 1.2rem;
}

.challenge-status.success {
    color: #4caf50;
}

.challenge-status.error {
    color: var(--red);
}

/* challange 1 drag n drop*/
.order-target {
    background: var(--mid);
    border: 2px solid var(--yellow);
    border-radius: var(--radius);
    padding: 1rem;
}

.order-target-label {
    font-size: 0.9rem;
    color: var(--yellow);
}

.order-hint-text {
    color: var(--muted);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.tray-zone {
    min-height: 80px;
    border: 2px dashed var(--muted);
    border-radius: var(--radius);
    padding: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    transition: border-color 0.2s, background 0.2s;
}

.tray-zone.drag-over {
    border-color: var(--yellow);
    background: rgba(246, 195, 0, 0.05);
}

.tray-empty {
    color: var(--muted);
    font-size: 0.85rem;
}

.shelf {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.shelf-item {
    background: var(--mid);
    border: 2px solid var(--mid);
    border-radius: var(--radius);
    padding: 0.5rem 0.8rem;
    cursor: grab;
    font-size: 1.1rem;
    transition: border-color 0.15s, transform 0.15s;
    user-select: none;
}

.shelf-item img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.shelf-item:hover {
    border-color: var(--yellow);
    transform: scale(1.05);
}

.shelf-item.dragging {
    opacity: 0.5;
}

.tray-chip {
    background: var(--red);
    border-radius: 4px;
    padding: 0.3rem 0.6rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.tray-chip img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

/* challange 2 keypad */
.keypad-target {
    background: var(--mid);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.keypad-target strong {
    color: var(--yellow);
    letter-spacing: 4px;
}

.scramble-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.scramble-cell {
    background: var(--mid);
    border-radius: var(--radius);
    padding: 0.5rem;
    text-align: center;
    font-size: 0.8rem;
    line-height: 1.6;
}

.scramble-printed {
    color: var(--yellow);
    font-size: 1rem;
    font-weight: bold;
}

.scramble-arrow {
    color: var(--muted);
}

.scramble-actual {
    color: var(--red);
    font-size: 1rem;
    font-weight: bold;
}

.keypad-display {
    font-size: 2rem;
    letter-spacing: 8px;
    text-align: center;
    color: var(--yellow);
    transition: color 0.2s;
}

.keypad-display.ok {
    color: #4caf50;
}

.keypad-display.err {
    color: var(--red);
}

.keypad-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.keypad-key {
    background: var(--mid);
    border: 2px solid var(--mid);
    color: var(--text);
    font-family: inherit;
    font-size: 1.2rem;
    font-weight: bold;
    padding: 0.75rem;
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.keypad-key:hover {
    border-color: var(--yellow);
    background: rgba(246, 195, 0, 0.1);
}


/* challange 3 lights */
.lights-row {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.light-btn {
    font-size: 3rem;
    background: none;
    border: 3px solid var(--mid);
    border-radius: 50%;
    width: 5rem;
    height: 5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.light-btn:hover {
    border-color: var(--yellow);
    transform: scale(1.08);
}

.light-btn.flash {
    background: rgba(255, 255, 255, 0.25);
    border-color: white;
    transform: scale(1.15);
}

.light-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.light-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}



/* challange 4 buckets*/
.buckets-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.bucket-btn {
    background: var(--mid);
    border: 2px solid var(--mid);
    color: var(--text);
    font-family: inherit;
    font-size: 1.1rem;
    padding: 0.75rem 1.2rem;
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.bucket-btn:hover {
    border-color: var(--yellow);
}

.bucket-btn.done {
    background: var(--red);
    border-color: var(--red);
    cursor: default;
}

.bucket-btn img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.bucket-btn p {
    font-size: 0.9rem;
    color: var(--text);
}

/* challange 5 recipe*/
.recipe-card {
    background: var(--mid);
    border: 2px solid var(--yellow);
    border-radius: var(--radius);
    padding: 1rem;
    line-height: 2;
}

#form-recipe {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem;
    align-items: center;
    margin-top: 0.5rem;
}

#form-recipe label {
    color: var(--muted);
    font-size: 0.9rem;
}

.recipe-input {
    background: var(--mid);
    border: 2px solid var(--mid);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius);
    outline: none;
    width: 100%;
    transition: border-color 0.2s;
}

.recipe-input:focus {
    border-color: var(--yellow);
}

#form-recipe button {
    grid-column: 1 / -1;
    margin-top: 0.25rem;
}

/* challange 6 the word */
.secret-word {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--yellow);
    letter-spacing: 6px;
    text-align: center;
    text-shadow: 2px 2px 0 var(--red);
}

#form-word {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

#input-word {
    background: var(--mid);
    border: 2px solid var(--mid);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    outline: none;
    text-align: center;
    letter-spacing: 4px;
    transition: border-color 0.2s;
}

#input-word:focus {
    border-color: var(--yellow);
}


.shake {
    animation: shake 0.3s ease;
}

/* notification */
.notification {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(6rem);
    background: var(--dark);
    border: 2px solid var(--yellow);
    color: var(--text);
    padding: 0.6rem 1.4rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    transition: transform 0.3s ease;
    z-index: 300;
    white-space: nowrap;
}

.notification.show {
    transform: translateX(-50%) translateY(0);
}

.notification.error {
    border-color: var(--red);
}

.notification.success {
    border-color: #4caf50;
}

/* end screen*/
.end-box {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    max-width: 400px;
}

.end-emoji {
    font-size: 4rem;
    animation: pop 0.4s ease;
}

.end-title {
    font-size: 2rem;
    color: var(--yellow);
    letter-spacing: 4px;
}

.end-sub {
    color: var(--muted);
}