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

:root {
    --primary-color: #ff0000;
    --primary-hover: #cc0000;
    --secondary-color: #282828;
    --background-color: #f5f5f5;
    --text-color: #333;
    --text-light: #666;
    --border-color: #ddd;
    --success-color: #28a745;
    --error-color: #dc3545;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.header__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.header__content {
    flex: 1;
    text-align: center;
}

.header__title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.header__subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
}

.header__logout {
    padding: 10px 20px;
    background: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.header__logout:hover {
    background: #1a1a1a;
    transform: translateY(-2px);
}

.header__logout:active {
    transform: translateY(0);
}

.header__logout:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Main */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Form */
.form {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form__group {
    margin-bottom: 20px;
}

.form__label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
    font-size: 1rem;
}

.form__input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    font-family: inherit;
}

.form__input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.1);
}

.form__input::placeholder {
    color: #999;
}

.form__error {
    background: #fee;
    color: var(--error-color);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--error-color);
    font-size: 0.95rem;
    font-weight: 500;
}

.login-form {
    max-width: 400px;
    margin: 0 auto;
}

.form__button {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: inherit;
}

.form__button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.form__button:active:not(:disabled) {
    transform: translateY(0);
}

.form__button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form__button-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.form__button.loading .form__button-text {
    display: none;
}

.form__button.loading .form__button-loader {
    display: block;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Result */
.result {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: none;
}

.result.show {
    display: block;
}

.result__success {
    border-left: 4px solid var(--success-color);
}

.result__error {
    border-left: 4px solid var(--error-color);
}

.result__header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.result__title {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.result__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.result__meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.result__meta-label {
    font-weight: 600;
}

.result__content {
    margin-top: 20px;
}

.result__transcript {
    background: var(--background-color);
    padding: 20px;
    border-radius: 8px;
    white-space: pre-wrap;
    word-wrap: break-word;
    line-height: 1.8;
    max-height: 500px;
    overflow-y: auto;
    font-size: 0.95rem;
}

.result__error-message {
    color: var(--error-color);
    font-size: 1.1rem;
    padding: 15px;
    background: #fee;
    border-radius: 8px;
}

.result__video-info {
    margin-bottom: 20px;
    padding: 15px;
    background: var(--background-color);
    border-radius: 8px;
}

.result__video-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-color);
}

.result__video-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.result__copy-button {
    margin-top: 15px;
    padding: 10px 20px;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
    font-family: inherit;
}

.result__copy-button:hover {
    background: #1a1a1a;
}

.result__copy-button:active {
    transform: scale(0.98);
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: white;
    opacity: 0.9;
}

.footer__text {
    font-size: 0.9rem;
}

/* Адаптивность */
@media (max-width: 768px) {
    .header__top {
        flex-direction: column;
        align-items: stretch;
    }

    .header__content {
        text-align: center;
    }

    .header__logout {
        width: 100%;
        text-align: center;
    }

    .header__title {
        font-size: 2rem;
    }

    .header__subtitle {
        font-size: 1rem;
    }

    .form {
        padding: 20px;
    }

    .result {
        padding: 20px;
    }

    .result__video-details {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .header__title {
        font-size: 1.75rem;
    }

    .form__input {
        font-size: 16px; /* Предотвращает зум на iOS */
    }
}