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

body {
    font-family: 'Montserrat', sans-serif;
    background: #000000;
    min-height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

input, button, textarea, select, label {
    font-family: 'Montserrat', sans-serif;
}

.app-container {
    background: #1a1a1a;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(255, 196, 7, 0.2);
    border: 1px solid #333;
    padding: 40px;
    max-width: 800px;
    width: 100%;
    animation: fadeIn 0.5s ease-in;
}

.dev-mode-banner {
    background: #ff9800;
    color: #000;
    padding: 10px 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 20px;
    border: 2px solid #f57c00;
}

.user-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: #0a0a0a;
    border-radius: 12px;
    border: 1px solid #333;
    margin-bottom: 25px;
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.user-name {
    color: #FFC407;
    font-weight: 600;
    font-size: 15px;
}

.user-email {
    color: #999;
    font-size: 13px;
}

.logout-btn {
    padding: 8px 20px;
    background: transparent;
    color: #FFC407;
    border: 2px solid #FFC407;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: #FFC407;
    color: #000;
    transform: translateY(-1px);
}

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

.logo {
    width: 400px;
    height: auto;
    display: block;
    margin: 0 auto 30px;
    filter: invert(1) brightness(2);
}

.initial-instruction {
    text-align: center;
    font-size: 16px;
    color: #999;
    margin-bottom: 30px;
    font-weight: 400;
    line-height: 1.6;
}

.format-selection {
    background: #0a0a0a;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    border: 1px solid #333;
}

.format-selection label {
    font-weight: 600;
    color: #FFC407;
    font-size: 15px;
}

.format-selection select {
    padding: 10px 20px;
    border: 2px solid #333;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: #FFC407;
    background: #000;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 200px;
}

.format-selection select:hover {
    border-color: #FFC407;
}

.format-selection select:focus {
    outline: none;
    border-color: #FFC407;
    box-shadow: 0 0 0 3px rgba(255, 196, 7, 0.2);
}

.translation-section {
    background: #0a0a0a;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    border: 1px solid #333;
}

.translation-toggle {
    margin-bottom: 15px;
}

.toggle-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.toggle-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    margin-right: 10px;
    accent-color: #FFC407;
}

.toggle-text {
    color: #FFC407;
    font-weight: 600;
    font-size: 15px;
}

.language-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px solid #333;
}

.language-selector label {
    font-weight: 600;
    color: #999;
    font-size: 14px;
}

.language-selector select {
    padding: 10px 20px;
    border: 2px solid #333;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #FFC407;
    background: #000;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 220px;
}

.language-selector select:hover {
    border-color: #FFC407;
}

.language-selector select:focus {
    outline: none;
    border-color: #FFC407;
    box-shadow: 0 0 0 3px rgba(255, 196, 7, 0.2);
}

.file-upload-container {
    text-align: center;
    margin-bottom: 25px;
}

.file-upload-label {
    display: inline-block;
    padding: 15px 40px;
    cursor: pointer;
    background: #FFC407;
    color: #000;
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 196, 7, 0.4);
}

.file-upload-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 196, 7, 0.6);
    background: #ffcd2e;
}

.file-upload-label:active {
    transform: translateY(0);
}

.file-upload-label.disabled {
    background: #333;
    color: #666;
    cursor: not-allowed;
    box-shadow: none;
}

.chat-area {
    min-height: 200px;
    max-height: 400px;
    border: 2px solid #333;
    border-radius: 12px;
    overflow-y: auto;
    padding: 20px;
    background: #0a0a0a;
    margin-bottom: 20px;
}

.chat-area:empty {
    display: none;
}

.message {
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 12px;
    line-height: 1.6;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.bot-message {
    background: rgba(255, 196, 7, 0.1);
    border-left: 4px solid #FFC407;
    color: #fff;
}

.bot-message a {
    color: #FFC407;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid #FFC407;
    transition: all 0.2s ease;
}

.bot-message a:hover {
    color: #ffcd2e;
    border-bottom-color: #ffcd2e;
}

.download-link {
    display: inline-block;
    padding: 12px 30px;
    background: #FFC407;
    color: #000 !important;
    text-decoration: none !important;
    border-radius: 50px;
    font-weight: 700;
    font-size: 15px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 196, 7, 0.4);
}

.download-link:hover {
    background: #ffcd2e;
    color: #000 !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 196, 7, 0.6);
    text-decoration: none !important;
}

.transcription-section {
    margin: 10px 0;
}

.transcription-section h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 16px;
    font-weight: 600;
}

.transcription-section pre {
    background: #000;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #333;
    font-size: 13px;
    line-height: 1.6;
    max-height: 400px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
}

.error-message {
    background: rgba(255, 0, 0, 0.1);
    border-left: 4px solid #ff3333;
    color: #ff6666;
}

.processing-container {
    padding: 30px;
    text-align: center;
}

.processing-text {
    color: #FFC407;
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 20px;
    animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #333;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #FFC407, #ffcd2e, #FFC407);
    background-size: 200% 100%;
    border-radius: 10px;
    animation: progressAnimation 1.5s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255, 196, 7, 0.5);
}

@keyframes progressAnimation {
    0% {
        width: 0%;
        background-position: 0% 0%;
    }
    50% {
        width: 70%;
        background-position: 100% 0%;
    }
    100% {
        width: 100%;
        background-position: 200% 0%;
    }
}

button {
    padding: 12px 30px;
    cursor: pointer;
    background: #FFC407;
    color: #000;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 196, 7, 0.4);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 196, 7, 0.6);
    background: #ffcd2e;
}

button:active {
    transform: translateY(0);
}

#downloadButton {
    display: none;
    margin: 0 auto;
}

/* Responsive design */
@media screen and (max-width: 768px) {
    .app-container {
        padding: 25px;
    }

    .logo {
        width: 300px;
    }

    .initial-instruction {
        font-size: 14px;
    }

    .format-selection {
        flex-direction: column;
        gap: 10px;
    }

    .format-selection select {
        width: 100%;
    }

    .file-upload-label {
        padding: 12px 30px;
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    body {
        padding: 10px;
    }

    .app-container {
        padding: 20px;
    }

    .logo {
        width: 250px;
    }
}