/**
 * Form Loader - Circular Progress Animation
 * تصميم حركة تفاعلية احترافية للنماذج
 */

/* Overlay Container */
.form-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.2s ease-out;
}

/* Main Container */
.form-loader-container {
    background: white;
    border-radius: 16px;
    padding: 2.5rem 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    min-width: 200px;
    animation: slideUp 0.3s ease-out;
    position: relative;
}

/* Spinner Container */
.form-loader-spinner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Size Variants */
.form-loader-spinner[data-size="sm"] {
    width: 40px;
    height: 40px;
}

.form-loader-spinner[data-size="md"] {
    width: 60px;
    height: 60px;
}

.form-loader-spinner[data-size="lg"] {
    width: 80px;
    height: 80px;
}

/* SVG Spinner */
.spinner-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    animation: rotate 2s linear infinite;
}

.spinner-track {
    stroke: #e5e7eb;
    opacity: 0.3;
}

.spinner-fill {
    stroke-dasharray: 125.6;
    stroke-dashoffset: 125.6;
    stroke-linecap: round;
    animation: drawCircle 1.5s ease-in-out infinite;
    transform-origin: center;
}

/* Color Variants */
.form-loader-spinner[data-color="primary"] .spinner-fill {
    stroke: #6366f1;
}

.form-loader-spinner[data-color="success"] .spinner-fill {
    stroke: #10b981;
}

.form-loader-spinner[data-color="danger"] .spinner-fill {
    stroke: #ef4444;
}

.form-loader-spinner[data-color="warning"] .spinner-fill {
    stroke: #f59e0b;
}

/* Loading Text */
.form-loader-text {
    text-align: center;
}

.loader-message {
    font-size: 1rem;
    font-weight: 500;
    color: #374151;
    animation: pulse 1.5s ease-in-out infinite;
}

/* Success/Error Icons */
.form-loader-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.success-icon {
    background: #10b981;
    color: white;
}

.success-icon svg {
    width: 32px;
    height: 32px;
}

.error-icon {
    background: #ef4444;
    color: white;
}

.error-icon svg {
    width: 32px;
    height: 32px;
}

/* Button Loading State */
.form-loader-button {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.form-loader-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes rotate {
    from {
        transform: rotate(-90deg);
    }
    to {
        transform: rotate(270deg);
    }
}

@keyframes drawCircle {
    0% {
        stroke-dashoffset: 125.6;
        opacity: 1;
    }
    50% {
        stroke-dashoffset: 31.4;
        opacity: 0.8;
    }
    100% {
        stroke-dashoffset: 125.6;
        opacity: 1;
    }
}

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

@keyframes scaleIn {
    from {
        transform: translate(-50%, -50%) scale(0);
    }
    to {
        transform: translate(-50%, -50%) scale(1);
    }
}

@keyframes spin {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Hide spinner when showing icon */
.form-loader-container.show-icon .form-loader-spinner {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s, transform 0.3s;
}

.form-loader-container.show-icon .form-loader-text {
    opacity: 0;
    transition: opacity 0.3s;
}

/* Responsive Design */
@media (max-width: 640px) {
    .form-loader-container {
        padding: 2rem 2.5rem;
        min-width: 180px;
    }

    .form-loader-spinner[data-size="md"] {
        width: 50px;
        height: 50px;
    }

    .loader-message {
        font-size: 0.9rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .form-loader-container {
        background: #1f2937;
    }

    .loader-message {
        color: #f3f4f6;
    }

    .spinner-track {
        stroke: #4b5563;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .form-loader-overlay,
    .form-loader-container,
    .spinner-svg,
    .spinner-fill,
    .loader-message,
    .form-loader-icon {
        animation: none;
    }

    .spinner-svg {
        animation: rotate 3s linear infinite;
    }
}