/* Loading Animation Styles */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

/* Main Loading Spinner */
.loading-spinner {
    width: 60px;
    height: 60px;
    position: relative;
    margin-bottom: 1.5rem;
}

.spinner-ring {
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid var(--bs-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    position: absolute;
}

.spinner-ring:nth-child(2) {
    border-top: 3px solid var(--bs-secondary);
    animation-delay: 0.2s;
    opacity: 0.7;
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
}

.spinner-ring:nth-child(3) {
    border-top: 3px solid var(--bs-success);
    animation-delay: 0.4s;
    opacity: 0.5;
    width: 60%;
    height: 60%;
    top: 20%;
    left: 20%;
}

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

/* Loading Content */
.loading-content {
    text-align: center;
}

.loading-text {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--bs-primary);
    margin-bottom: 0.5rem;
}

.loading-subtext {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Progress Bar */
.loading-progress {
    width: 200px;
    height: 4px;
    background: var(--bs-border-color);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-secondary));
    border-radius: 2px;
    animation: progress 2s ease-in-out infinite;
    position: absolute;
    left: -100%;
    right: -100%;
}

@keyframes progress {
    0% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(0%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Dot Pulse Animation */
.dot-pulse {
    position: relative;
    left: -9999px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--bs-primary);
    color: var(--bs-primary);
    box-shadow: 9999px 0 0 -5px;
    animation: dot-pulse 1.5s infinite linear;
    animation-delay: 0.25s;
    margin: 2rem auto;
}

.dot-pulse::before,
.dot-pulse::after {
    content: '';
    display: inline-block;
    position: absolute;
    top: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--bs-primary);
    color: var(--bs-primary);
}

.dot-pulse::before {
    box-shadow: 9984px 0 0 -5px;
    animation: dot-pulse-before 1.5s infinite linear;
    animation-delay: 0s;
}

.dot-pulse::after {
    box-shadow: 10014px 0 0 -5px;
    animation: dot-pulse-after 1.5s infinite linear;
    animation-delay: 0.5s;
}

@keyframes dot-pulse-before {
    0% {
        box-shadow: 9984px 0 0 -5px;
    }
    30% {
        box-shadow: 9984px 0 0 2px;
    }
    60%,
    100% {
        box-shadow: 9984px 0 0 -5px;
    }
}

@keyframes dot-pulse {
    0% {
        box-shadow: 9999px 0 0 -5px;
    }
    30% {
        box-shadow: 9999px 0 0 2px;
    }
    60%,
    100% {
        box-shadow: 9999px 0 0 -5px;
    }
}

@keyframes dot-pulse-after {
    0% {
        box-shadow: 10014px 0 0 -5px;
    }
    30% {
        box-shadow: 10014px 0 0 2px;
    }
    60%,
    100% {
        box-shadow: 10014px 0 0 -5px;
    }
}

/* Logo Loading Animation */
.logo-loading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.logo-loading-icon {
    font-size: 2rem;
    color: var(--bs-primary);
    animation: logo-bounce 2s infinite;
}

.logo-loading-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes logo-bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Skeleton Loading */
.skeleton-loading {
    background: linear-gradient(90deg, var(--bs-border-color) 25%, var(--bs-bg-color) 50%, var(--bs-border-color) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 0.375rem;
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    margin-bottom: 1rem;
}

.skeleton-card {
    padding: 1.5rem;
    border-radius: 0.75rem;
    background: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Page Transition Loader */
.page-transition-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
    z-index: 10000;
    pointer-events: none;
}

.page-transition-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-secondary));
    width: 0%;
    transition: width 0.4s ease;
}

/* Dashboard Specific Loading */
.dashboard-loading {
    padding: 2rem;
}

.dashboard-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.skeleton-card .skeleton-title {
    width: 60%;
}

.skeleton-card .skeleton-text {
    width: 80%;
}

.skeleton-card .skeleton-text:last-child {
    width: 40%;
}