/* Universal Loader Styles - Optimized */
.loader-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    will-change: opacity, visibility;
}

.loader-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid #e5e7eb;
    border-top-color: #6366f1;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    will-change: transform;
}

.loader-text {
    color: #6366f1;
    font-weight: 600;
    font-size: 0.95rem;
}

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

/* Fast Submit Loader */
.submit-loader-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.submit-loader-overlay.active {
    display: flex;
    opacity: 1;
}

.submit-loader-content {
    text-align: center;
    padding: 2rem;
    max-width: 380px;
}

.submit-loader-spinner {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
}

.spinner-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
    animation: spin 1.2s linear infinite;
    will-change: transform;
}

.spinner-ring:nth-child(1) { border-top-color: #6366f1; }
.spinner-ring:nth-child(2) {
    inset: 10%;
    border-right-color: #8b5cf6;
    animation-duration: 1.5s;
    animation-direction: reverse;
}
.spinner-ring:nth-child(3) {
    inset: 20%;
    border-bottom-color: #a78bfa;
    animation-duration: 0.9s;
}

.spinner-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 28px;
    color: #6366f1;
    animation: pulse 0.8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

.submit-loader-title {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.submit-loader-text {
    color: #94a3b8;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.submit-loader-progress {
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.progress-bar-animated {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #6366f1, #8b5cf6, #a78bfa);
    border-radius: 3px;
    animation: progress 2s ease-in-out infinite;
}

@keyframes progress {
    0% { width: 0; }
    50% { width: 70%; }
    100% { width: 100%; }
}

.submit-loader-steps {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    text-align: left;
}

.submit-loader-steps .step {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #64748b;
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

.submit-loader-steps .step.active {
    color: #10b981;
}

.submit-loader-steps .step i {
    font-size: 1rem;
    width: 18px;
    text-align: center;
}

/* Button loader states */
.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.85;
}

.btn-loading .btn-text { opacity: 0; }

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.btn-submit {
    min-width: 160px;
    transition: all 0.2s ease;
}

.btn-submit:disabled {
    opacity: 0.8;
    cursor: not-allowed;
}

.btn-submit.loading .btn-text { display: none; }
.btn-submit.loading .btn-loading { display: inline-flex; align-items: center; }

/* Mobile optimizations */
@media (max-width: 480px) {
    .submit-loader-content { padding: 1.5rem; }
    .submit-loader-spinner { width: 80px; height: 80px; }
    .spinner-icon { font-size: 22px; }
    .submit-loader-title { font-size: 1.2rem; }
    .submit-loader-text { font-size: 0.85rem; }
}