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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1e1e2e 0%, #2d2d44 100%);
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.app-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.screen {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    padding: 20px;
}

.screen.active {
    display: flex;
}

.header {
    text-align: center;
    margin-bottom: 20px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1rem;
    color: #a0a0a0;
    font-weight: 300;
}

/* Komut Gösterimi */
.command-display {
    width: 100%;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    margin: 20px 0;
}

.command-text {
    font-size: 4rem;
    font-weight: 900;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.command-text.active {
    transform: scale(1.1);
    color: #ff6b6b;
    text-shadow: 0 0 30px rgba(255, 107, 107, 0.8);
}

.command-text.combination {
    font-size: 2.5rem;
    line-height: 1.6;
}

/* Round Bilgisi */
.round-info {
    text-align: center;
    width: 100%;
}

.round-number {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #ffd93d;
}

.timer {
    font-size: 3rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: #6bcf7f;
    text-shadow: 0 0 10px rgba(107, 207, 127, 0.5);
}

/* Kontrol Butonları */
.controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
}

.btn {
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    min-width: 120px;
}

.btn-primary {
    background: linear-gradient(135deg, #6bcf7f 0%, #4ec575 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(107, 207, 127, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(107, 207, 127, 0.6);
}

.btn-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Ayarlar */
.settings-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-group label {
    font-size: 0.9rem;
    color: #a0a0a0;
    font-weight: 500;
}

.setting-group select {
    padding: 12px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.setting-group select:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.setting-group select:focus {
    outline: none;
    border-color: #6bcf7f;
    box-shadow: 0 0 0 3px rgba(107, 207, 127, 0.2);
}

.setting-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 10px;
    cursor: pointer;
}

.setting-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 600px) {
    .command-text {
        font-size: 3rem;
    }

    .command-text.combination {
        font-size: 2rem;
    }

    .timer {
        font-size: 2.5rem;
    }

    .header h1 {
        font-size: 2rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 1rem;
        min-width: 100px;
    }
}

/* Animasyonlar */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.command-text.pulse {
    animation: pulse 0.5s ease-in-out;
}