/* Стили для страницы загрузки */
:root {
    --primary-pink: #FFD1DC;
    --accent-pink: #FFB6C1;
    --dark-pink: #FF69B4;
    --soft-blue: #B5EAD7;
    --light-blue: #C7CEEA;
    --text-dark: #000000;
    --text-light: #6c757d;
    --background: #FFFFFF;
    --card-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

/* Герой-секция */
.hero-section {
    background: linear-gradient(135deg, var(--primary-pink) 0%, var(--soft-blue) 100%);
    border-radius: 20px;
    padding: 50px 30px;
    margin-bottom: 40px;
    box-shadow: var(--card-shadow);
}

.hero-title {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 0;
}

/* Секции */
.upload-section,
.features-section {
    background: var(--background);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 28px;
    box-shadow: var(--card-shadow);
    border: 1px solid #f0f0f0;
}

.section-title {
    color: var(--text-dark);
    border-bottom: 2px solid var(--primary-pink);
    padding-bottom: 12px;
    margin-bottom: 24px;
    font-weight: 300;
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

/* Карточка загрузки */
.upload-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    border: 2px dashed var(--accent-pink);
    transition: all 0.3s ease;
}

.upload-card:hover {
    border-color: var(--dark-pink);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.upload-icon {
    font-size: 3rem;
    color: var(--accent-pink);
    margin-bottom: 20px;
}

.upload-icon i {
    background: linear-gradient(135deg, var(--primary-pink) 0%, var(--accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Форма загрузки */
.upload-form {
    max-width: 400px;
    margin: 0 auto;
}

.file-input-wrapper {
    position: relative;
    margin-bottom: 20px;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: -9999px;
}

.file-input-label {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-pink) 0%, var(--accent-pink) 100%);
    color: var(--text-dark);
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    box-shadow: 0 4px 15px rgba(255, 182, 193, 0.3);
}

.file-input-label:hover {
    background: linear-gradient(135deg, var(--accent-pink) 0%, var(--dark-pink) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 182, 193, 0.4);
}

.file-name {
    display: block;
    margin-top: 10px;
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    color: var(--text-light);
    font-size: 0.9rem;
}

.file-name.file-selected {
    color: var(--text-dark);
    font-weight: 400;
}

/* Кнопка загрузки */
.btn-upload {
    background: linear-gradient(135deg, var(--soft-blue) 0%, #95D5B2 100%);
    border: none;
    color: var(--text-dark);
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 400;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(181, 234, 215, 0.3);
    cursor: pointer;
}

.btn-upload:hover {
    background: linear-gradient(135deg, #95D5B2 0%, #74C69D 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(181, 234, 215, 0.4);
}

.btn-upload:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Поддерживаемые форматы */
.supported-formats {
    margin-top: 20px;
    color: var(--text-light);
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: 0.85rem;
}

/* Карточки возможностей */
.feature-card {
    background: var(--background);
    border-radius: 16px;
    padding: 25px;
    height: 100%;
    box-shadow: var(--card-shadow);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
    border-color: var(--primary-pink);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-pink) 0%, var(--accent-pink) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--text-dark);
}

.feature-content h4 {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.feature-content p {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .upload-card {
        padding: 30px 20px;
    }
    
    .feature-card {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .feature-icon {
        margin: 0 auto;
    }
}

/* Анимации */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.upload-icon {
    animation: pulse 2s ease-in-out infinite;
}

/* Состояние загрузки */
.uploading .btn-upload {
    position: relative;
}

.uploading .btn-upload::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}