* {
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 50%, #d4d4d4 100%);
    min-height: 100vh;
    margin: 0;
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background: #fff9e6;
    border: 8px solid #8b4513;
    border-radius: 0;
    padding: clamp(15px, 4vw, 30px);
    box-shadow:
        0 0 0 4px #daa520,
        0 0 0 8px #8b4513,
        0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 700px;
    width: 100%;
    position: relative;
}

h1 {
    text-align: center;
    color: #8b4513;
    margin: 0 0 clamp(15px, 3vw, 20px) 0;
    font-size: clamp(1.5em, 5vw, 2em);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.controls {
    display: flex;
    gap: 10px;
    margin-bottom: clamp(15px, 3vw, 20px);
    align-items: stretch;
    flex-wrap: wrap;
}

label {
    font-weight: 600;
    color: #8b4513;
    font-size: clamp(14px, 3vw, 16px);
    display: none;
}

select {
    flex: 1;
    min-width: 200px;
    padding: clamp(10px, 2.5vw, 12px) clamp(12px, 3vw, 16px);
    font-size: clamp(14px, 3.5vw, 16px);
    border: 3px solid #8b4513;
    border-radius: 0;
    background: #fff;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    color: #8b4513;
}

select:hover {
    background: #fff9e6;
    border-color: #daa520;
}

select:focus {
    outline: none;
    border-color: #daa520;
    box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.3);
}

.reset-button {
    padding: clamp(10px, 2.5vw, 12px) clamp(15px, 3vw, 20px);
    font-size: clamp(12px, 3vw, 14px);
    background: #f44336;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
    white-space: nowrap;
}

.reset-button:hover {
    background: #d32f2f;
}

.bingo-card {
    display: none;
    gap: clamp(4px, 1vw, 6px);
}

.bingo-card.active {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    position: relative;
}

.bingo-card.active::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 3px;
    background: #8b4513;
    transform: translateY(-50%);
}

.bingo-card.active::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #8b4513;
    transform: translateX(-50%);
}

.bingo-cell {
    aspect-ratio: 1;
    background: #fff;
    border: 3px solid #8b4513;
    border-radius: 0;
    padding: clamp(4px, 1vw, 8px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: clamp(9px, 2.2vw, 13px);
    font-weight: 600;
    color: #8b4513;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1.1;
    min-height: 0;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.bingo-cell-text {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    overflow-wrap: break-word;
    max-height: 100%;
}

@media (hover: hover) {
    .bingo-cell:hover {
        transform: scale(1.05);
        box-shadow: 0 4px 12px rgba(139, 69, 19, 0.3);
        z-index: 10;
    }
}

.bingo-cell.marked {
    background: radial-gradient(circle, #4ade80 0%, #22c55e 50%, #16a34a 100%);
    color: white;
    border-color: #8b4513;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
}

.bingo-cell.marked::before {
    content: "✓";
    position: absolute;
    top: 2px;
    right: 4px;
    font-size: clamp(12px, 2.5vw, 16px);
    color: white;
    font-weight: 900;
}

.bingo-cell.disqualified {
    background: radial-gradient(circle, #f87171 0%, #ef4444 50%, #dc2626 100%);
    color: white;
    border-color: #8b4513;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
}

.bingo-cell.disqualified::before {
    content: "✗";
    position: absolute;
    top: 2px;
    right: 4px;
    font-size: clamp(12px, 2.5vw, 16px);
    color: white;
    font-weight: 900;
}

@media (hover: hover) {
    .bingo-cell.marked:hover {
        transform: scale(1.05);
        box-shadow:
            inset 0 0 10px rgba(0, 0, 0, 0.3),
            0 4px 12px rgba(139, 69, 19, 0.3);
    }

    .bingo-cell.disqualified:hover {
        transform: scale(1.05);
        box-shadow:
            inset 0 0 10px rgba(0, 0, 0, 0.3),
            0 4px 12px rgba(139, 69, 19, 0.3);
    }
}

.bingo-cell.free-space {
    font-weight: 900;
    font-size: clamp(10px, 2.5vw, 14px);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: radial-gradient(circle, #ffd700 0%, #ffb700 50%, #e6a400 100%);
    border-color: #8b4513;
    border-width: 4px;
}

.bingo-cell.free-space::before {
    content: none;
}

.bingo-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
    padding: 10px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.bingo-modal {
    background: #fff9e6;
    border: 6px solid #8b4513;
    border-radius: 0;
    padding: clamp(20px, 5vw, 40px);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow:
        0 0 0 4px #daa520,
        0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease-out;
    position: relative;
}

.bingo-modal::before {
    content: "";
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: #daa520;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.bingo-modal h2 {
    margin: 0 0 clamp(20px, 4vw, 30px) 0;
    text-align: center;
    color: #8b4513;
    font-size: clamp(1.3em, 5vw, 1.8em);
    line-height: 1.3;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-buttons {
    display: flex;
    gap: clamp(10px, 2vw, 15px);
    flex-direction: column;
}

@media (min-width: 480px) {
    .modal-buttons {
        flex-direction: row;
    }
}

.modal-btn {
    flex: 1;
    padding: clamp(12px, 3vw, 15px) clamp(15px, 3vw, 20px);
    font-size: clamp(14px, 3.5vw, 16px);
    font-weight: 700;
    border: 3px solid #8b4513;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    background: #fff;
    color: #8b4513;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-btn:hover {
    transform: scale(1.02);
}

.modal-btn.mark-btn:hover {
    background: #22c55e;
    color: white;
    border-color: #16a34a;
}

.modal-btn.disqualify-btn:hover {
    background: #ef4444;
    color: white;
    border-color: #dc2626;
}

.modal-btn.reset-btn:hover {
    background: #f59e0b;
    color: white;
    border-color: #d97706;
}

.close-btn:hover {
    background: #8b4513;
    color: #fff;
}

.empty-message {
    text-align: center;
    color: #8b4513;
    padding: 40px;
    font-style: italic;
    font-size: clamp(14px, 3vw, 16px);
    font-weight: 600;
}

.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

@keyframes confetti-fall {
    0% {
        top: -10px;
        transform: translateX(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        top: 110vh;
        transform: translateX(var(--sway)) rotate(var(--rotation));
        opacity: 1;
    }
}

.confetti {
    position: absolute;
    top: -10px;
    width: 10px;
    height: 10px;
    animation: confetti-fall linear infinite;
    opacity: 1;
    --sway: calc((var(--random-x) - 0.5) * 100px);
    --rotation: calc((var(--random-x) - 0.5) * 360deg);
}

.confetti.circle {
    border-radius: 50%;
}

.confetti.square {
    border-radius: 0;
}

.confetti.rectangle {
    width: 6px;
    height: 14px;
    border-radius: 2px;
}

.win-text {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: clamp(3em, 10vw, 6em);
    font-weight: 900;
    color: #ffd700;
    text-shadow:
        4px 4px 0 #ff6b6b,
        -4px -4px 0 #4ade80,
        4px -4px 0 #667eea,
        -4px 4px 0 #ff69b4;
    animation: win-flash 0.5s ease-in-out infinite alternate;
    z-index: 10000;
    pointer-events: none;
    text-transform: uppercase;
    letter-spacing: 4px;
    white-space: nowrap;
}

@keyframes win-flash {
    0% {
        transform: translate(-50%, -50%) scale(1) rotate(-2deg);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.1) rotate(2deg);
        opacity: 1;
    }
}

@keyframes confetti-fall {
    0% {
        top: -10px;
        transform: translateX(0) rotate(0deg) translateY(0);
        opacity: 1;
    }
    25% {
        transform: translateX(100px) rotate(180deg) translateY(25vh);
    }
    50% {
        transform: translateX(-100px) rotate(360deg) translateY(50vh);
    }
    75% {
        transform: translateX(100px) rotate(540deg) translateY(75vh);
    }
    100% {
        top: 110vh;
        transform: translateX(-50px) rotate(720deg) translateY(100vh);
        opacity: 0;
    }
}