/**
 * PMWaves Utilities CSS
 * Scroll button, loading states, and other utilities
 * Optional file - can be merged into components if preferred
 */

/* ========================================
   SCROLL TO TOP BUTTON - FIXED
   ======================================== */

#scrollBtn {
    display: none; /* Start hidden - ONLY display property needed here */
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-8);
    z-index: 200;
    width: 50px;
    height: 50px;
    border: none;
    outline: none;
    background: var(--gradient-primary);
    color: var(--white);
    cursor: pointer;
    padding: 0;
    border-radius: var(--radius-full);
    font-size: var(--text-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
    /* Remove the conflicting display: flex from here */
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
}

#scrollBtn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-primary);
}

#scrollBtn:active {
    transform: scale(0.95);
}

#scrollBtn i {
    font-size: var(--text-xl);
}

/* Show button when scrolled down */
#scrollBtn.show {
    display: flex !important; /* Now this will work properly */
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.3s ease;
}

/* Hide button */
#scrollBtn.hide {
    opacity: 0;
    transform: translateY(20px);
    /* Don't set display: none here, let JavaScript handle it */
}

/* Enhanced hover effects when visible */
#scrollBtn.show:hover {
    transform: translateY(-2px) scale(1.1);
    box-shadow: 0 8px 25px rgba(30, 60, 114, 0.4);
}

/* ========================================
   PAGE LOADER - NEW ADDITION
   ======================================== */

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-max);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    color: var(--white);
    max-width: 300px;
    padding: var(--spacing-6);
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid var(--white);
    border-radius: var(--radius-full);
    animation: loaderSpin 1s linear infinite;
    margin: 0 auto var(--spacing-4);
}

.loader-text {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    opacity: 0.9;
    margin-bottom: var(--spacing-4);
}

.loader-subtext {
    font-size: var(--text-sm);
    opacity: 0.7;
    margin-bottom: var(--spacing-6);
}

.loader-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}

.loader-progress-bar {
    height: 100%;
    background: var(--white);
    border-radius: var(--radius-full);
    width: 0%;
    animation: loadProgress 2s ease-out forwards;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Alternative loader styles for different pages */
.page-loader.minimal {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.page-loader.minimal .loader-content {
    color: var(--primary-color);
}

.page-loader.minimal .loader-spinner {
    border-color: rgba(30, 60, 114, 0.2);
    border-top-color: var(--primary-color);
}

.page-loader.minimal .loader-progress {
    background: rgba(30, 60, 114, 0.1);
}

.page-loader.minimal .loader-progress-bar {
    background: var(--gradient-primary);
}

/* Loader animations */
@keyframes loaderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes loadProgress {
    0% { 
        width: 0%; 
        transform: translateX(-100%);
    }
    20% { 
        width: 30%; 
        transform: translateX(0%);
    }
    50% { 
        width: 60%; 
        transform: translateX(0%);
    }
    80% { 
        width: 85%; 
        transform: translateX(0%);
    }
    100% { 
        width: 100%; 
        transform: translateX(0%);
    }
}

/* Loading dots animation (alternative to spinner) */
.loader-dots {
    display: flex;
    gap: var(--spacing-2);
    justify-content: center;
    margin: var(--spacing-4) 0;
}

.loader-dot {
    width: 8px;
    height: 8px;
    background: var(--white);
    border-radius: var(--radius-full);
    animation: loaderDots 1.4s ease-in-out infinite both;
}

.loader-dot:nth-child(1) { animation-delay: -0.32s; }
.loader-dot:nth-child(2) { animation-delay: -0.16s; }
.loader-dot:nth-child(3) { animation-delay: 0s; }

@keyframes loaderDots {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Page loader for different screen sizes */
@media (max-width: 768px) {
    .loader-content {
        padding: var(--spacing-4);
        max-width: 250px;
    }
    
    .loader-spinner {
        width: 50px;
        height: 50px;
    }
    
    .loader-text {
        font-size: var(--text-lg);
    }
    
    .loader-progress {
        width: 160px;
    }
}

/* ========================================
   LOADING STATES - ENHANCED
   ======================================== */

.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid var(--gray-300);
    border-top: 3px solid var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

/* Form loading states */
.form-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.form-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
    z-index: 10;
}

.form-loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-top: 2px solid var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
    z-index: 11;
}

/* Button loading states */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--white);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    z-index: var(--z-max);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.loading-overlay.dark {
    background: rgba(0, 0, 0, 0.8);
    color: var(--white);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-300);
    border-top: 4px solid var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

.spinner.large {
    width: 80px;
    height: 80px;
    border-width: 6px;
}

.spinner.small {
    width: 30px;
    height: 30px;
    border-width: 3px;
}

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

/* ========================================
   ALERTS & MESSAGES
   ======================================== */

.alert {
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-4);
    font-weight: var(--font-medium);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    animation: slideInDown 0.3s ease;
}

.alert i {
    font-size: var(--text-xl);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
    border: 1px solid #b1dfbb;
}

.alert-error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
    border: 1px solid #f1b0b7;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffeeba);
    color: #856404;
    border: 1px solid #ffd98d;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    color: #0c5460;
    border: 1px solid #9ec6d1;
}

/* Form messages */
.form-message {
    margin-top: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    animation: slideInDown 0.3s ease;
}

.form-message-success {
    background: rgba(34, 197, 94, 0.1);
    color: #15803d;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.form-message-error {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Dismissible alerts */
.alert-dismissible {
    position: relative;
    padding-right: var(--spacing-12);
}

.alert-close {
    position: absolute;
    top: 50%;
    right: var(--spacing-4);
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: var(--text-2xl);
    color: inherit;
    opacity: 0.5;
    cursor: pointer;
    transition: var(--transition-fast);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alert-close:hover {
    opacity: 1;
}

/* ========================================
   TOOLTIPS
   ======================================== */

[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before,
[data-tooltip]::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-tooltip);
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--gray-900);
    color: var(--white);
    font-size: var(--text-sm);
    white-space: nowrap;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

[data-tooltip]::after {
    content: '';
    bottom: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--gray-900);
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   BADGES
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--primary-color);
    color: var(--white);
}

.badge-secondary {
    background: var(--secondary-color);
    color: var(--white);
}

.badge-success {
    background: var(--success-color);
    color: var(--white);
}

.badge-warning {
    background: var(--warning-color);
    color: var(--gray-900);
}

.badge-error {
    background: var(--error-color);
    color: var(--white);
}

.badge-info {
    background: var(--info-color);
    color: var(--white);
}

/* ========================================
   PROGRESS BARS
   ======================================== */

.progress {
    width: 100%;
    height: 20px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 0.6s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
}

.progress-bar.animated {
    background: var(--gradient-vibrant);
    background-size: 300% 100%;
    animation: gradient-shift 3s ease infinite;
}

/* ========================================
   DIVIDERS
   ======================================== */

.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--gray-300), transparent);
    margin: var(--spacing-8) 0;
}

.divider-thick {
    height: 3px;
    background: var(--gradient-primary);
    margin: var(--spacing-12) 0;
}

.divider-dashed {
    height: 1px;
    background-image: repeating-linear-gradient(
        to right,
        var(--gray-400),
        var(--gray-400) 10px,
        transparent 10px,
        transparent 20px
    );
}

/* ========================================
   VISIBILITY UTILITIES
   ======================================== */

.visible {
    visibility: visible !important;
}

.invisible {
    visibility: hidden !important;
}

.opacity-0 { opacity: 0 !important; }
.opacity-25 { opacity: 0.25 !important; }
.opacity-50 { opacity: 0.5 !important; }
.opacity-75 { opacity: 0.75 !important; }
.opacity-100 { opacity: 1 !important; }

/* ========================================
   OVERFLOW UTILITIES
   ======================================== */

.overflow-auto { overflow: auto !important; }
.overflow-hidden { overflow: hidden !important; }
.overflow-visible { overflow: visible !important; }
.overflow-scroll { overflow: scroll !important; }
.overflow-x-auto { overflow-x: auto !important; }
.overflow-y-auto { overflow-y: auto !important; }

/* ========================================
   SHADOW UTILITIES
   ======================================== */

.shadow-none { box-shadow: var(--shadow-none) !important; }
.shadow-xs { box-shadow: var(--shadow-xs) !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }
.shadow-2xl { box-shadow: var(--shadow-2xl) !important; }

/* ========================================
   ANIMATION UTILITIES
   ======================================== */

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

.animate-bounce {
    animation: bounce 1s ease-in-out infinite;
}

/* ========================================
   RESPONSIVE UTILITIES
   ======================================== */

/* Hide on mobile */
@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
}

/* Hide on tablet */
@media (min-width: 769px) and (max-width: 1024px) {
    .hide-tablet { display: none !important; }
}

/* Hide on desktop */
@media (min-width: 1025px) {
    .hide-desktop { display: none !important; }
}

/* Show only on mobile */
.show-mobile { display: none !important; }
@media (max-width: 768px) {
    .show-mobile { display: block !important; }
}

/* Show only on tablet */
.show-tablet { display: none !important; }
@media (min-width: 769px) and (max-width: 1024px) {
    .show-tablet { display: block !important; }
}

/* Show only on desktop */
.show-desktop { display: none !important; }
@media (min-width: 1025px) {
    .show-desktop { display: block !important; }
}