* {
    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, #0f0f1e 0%, #1a1a2e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 900px;
    width: 100%;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: -1px;
}

.subtitle {
    color: #a0a0b0;
    font-size: 1.1rem;
}

.screen {
    animation: fadeIn 0.4s ease-in;
}

.screen.hidden {
    display: none;
}

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

.info-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
}

.info-box h2 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.info-box ul {
    list-style: none;
    margin-bottom: 20px;
}

.info-box li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    line-height: 1.6;
    color: #c0c0d0;
}

.info-box li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: #6b8afd;
    font-weight: bold;
}

.privacy-note {
    background: rgba(107, 138, 253, 0.1);
    border-left: 3px solid #6b8afd;
    padding: 15px;
    border-radius: 6px;
    color: #b0c4ff;
}

.primary-btn,
.secondary-btn {
    width: 100%;
    padding: 18px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.primary-btn {
    background: linear-gradient(135deg, #6b8afd 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(107, 138, 253, 0.3);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(107, 138, 253, 0.4);
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.status-bar {
    display: flex;
    justify-content: space-around;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
}

.status-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.label {
    color: #a0a0b0;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-item span:last-child {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.status-active {
    color: #4ade80 !important;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.waveform-container {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    overflow: hidden;
}

#waveform {
    width: 100%;
    height: 200px;
    display: block;
    background: rgba(0, 0, 0, 0.5);
}

.capture-area {
    margin-bottom: 30px;
}

#capture-input {
    width: 100%;
    min-height: 150px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    color: transparent;
    caret-color: #6b8afd;
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
    resize: vertical;
    transition: border-color 0.3s ease;
}

#capture-input:focus {
    outline: none;
    border-color: #6b8afd;
}

#capture-input::placeholder {
    color: #606070;
}

.text-preview {
    margin-bottom: 30px;
}

.text-preview label {
    display: block;
    margin-bottom: 10px;
    color: #a0a0b0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
}

#output-text {
    width: 100%;
    min-height: 300px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    color: #e0e0e0;
    font-size: 1rem;
    font-family: 'Courier New', monospace;
    line-height: 1.6;
    resize: vertical;
}

#output-text:focus {
    outline: none;
    border-color: #6b8afd;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin: 20px 0;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: #6b8afd;
    line-height: 1;
}

.stat-label {
    margin-top: 8px;
    color: #a0a0b0;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.button-group button {
    flex: 1;
}

.feedback {
    text-align: center;
    padding: 15px;
    background: rgba(74, 222, 128, 0.2);
    border: 1px solid rgba(74, 222, 128, 0.3);
    border-radius: 8px;
    color: #4ade80;
    font-weight: 600;
    animation: slideIn 0.3s ease;
}

.feedback.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.settings-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.settings-header {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #808090;
    margin-bottom: 20px;
    font-weight: 600;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #a0a0b0;
    font-size: 0.95rem;
}

.setting-item label {
    color: #c0c0d0;
}

.setting-item input[type="number"] {
    width: 70px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s ease;
}

.setting-item input[type="number"]:focus {
    outline: none;
    border-color: #6b8afd;
    background: rgba(107, 138, 253, 0.1);
}

.setting-item input[type="number"]:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.setting-item select {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #c0c0d0;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.setting-item select:focus {
    outline: none;
    border-color: #6b8afd;
    background: rgba(107, 138, 253, 0.1);
}

.setting-item select:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.setting-unit {
    color: #808090;
}

/* Hide number input spinner arrows in Chrome/Safari */
.setting-item input[type="number"]::-webkit-inner-spin-button,
.setting-item input[type="number"]::-webkit-outer-spin-button {
    opacity: 0.5;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .status-bar {
        flex-direction: column;
        gap: 15px;
    }

    .stats {
        gap: 40px;
    }

    .stat-value {
        font-size: 2rem;
    }

    .button-group {
        flex-direction: column;
    }

    .settings-section {
        margin-top: 30px;
        padding-top: 20px;
    }
}