/* ===============================
   Music Section
================================ */
.upload-area {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
}

.upload-area i {
    color: #6fa8ff;
    font-size: 16px;
}

.upload-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 14px;
    color: #e6f1ff;
}

.upload-input::placeholder {
    color: #8aa3d6;
}

.upload-button {
    padding: 8px 14px;
    border-radius: 8px;
    border: none;
    background: #2f6fbb;
    color: white;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s ease;
}

.upload-button:hover {
    background: #255a99;
}

.upload-button:disabled {
    background: #4a4f5e;
    cursor: not-allowed;
    opacity: 0.6;
}

/* ===============================
   Upload Info
================================ */
.upload-info {
    margin-top: 15px;
    min-height: 20px;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 1;
    transform: translateY(0);
    color: #8aa3d6;
    font-size: 13px;
}

.upload-info.fade-out {
    opacity: 0;
    transform: translateY(-5px);
}

.upload-info.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(5px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Стили для разных типов сообщений */
.upload-info.success {
    color: #4caf50;
}

.upload-info.error {
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.1);
    padding: 8px 12px;
    border-radius: 8px;
    border-left: 3px solid #ff6b6b;
    border-right: 3px solid #ff6b6b;
    animation: shake 0.3s ease;
    text-align: center;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.upload-info.info {
    color: #6fa8ff;
}

.upload-info.warning {
    color: #ffd966;
}

/* ===============================
   Progress Bar Styles
================================ */
.progress-container {
    margin-top: 15px;
    padding: 10px 16px;
    border-radius: 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    display: none; /* Скрыт по умолчанию */
}

.progress-container.active {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2f6fbb, #4a9eff);
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.progress-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #e6f1ff;
}

.progress-text {
    color: #8aa3d6;
}

.progress-percent {
    font-weight: 600;
    color: #2f6fbb;
}

/* Стили для завершения загрузки */
.progress-container.completed .progress-fill {
    background: linear-gradient(90deg, #4caf50, #6fbf73);
}

.progress-container.completed .progress-percent {
    color: #4caf50;
}

.progress-container.completed .progress-fill::after {
    animation: none;
}

/* Анимация для успешного завершения */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
    }
}

.progress-container.completed {
    animation: pulse 0.5s ease;
}

/* Стили для ошибки в прогрессе (на случай если ошибка всё же покажется в прогрессе) */
.progress-container.error .progress-fill {
    background: linear-gradient(90deg, #ff6b6b, #ff8a8a);
}

.progress-container.error .progress-percent {
    color: #ff6b6b;
}

.progress-container.error .progress-fill::after {
    animation: none;
}


/* ===============================
   Fact Animation
================================ */

.progress-text {
    color: #8aa3d6;
    display: inline-block;
}

.fact-fade-out {
    animation: factFadeOut 0.25s ease forwards;
}

.fact-fade-in {
    animation: factFadeIn 0.35s ease forwards;
}

@keyframes factFadeOut {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-6px);
    }
}

@keyframes factFadeIn {
    0% {
        opacity: 0;
        transform: translateY(6px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}