/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.slide-down {
    animation: slideDown 0.4s ease-out;
}

/* ============================================
   HOVER EFFECTS
   ============================================ */

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(217, 70, 166, 0.4);
}

.hover-scale:hover {
    transform: scale(1.02);
}

/* ============================================
   BADGE STYLES
   ============================================ */

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
}

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

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

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

.badge-danger {
    background-color: #ef4444;
    color: white;
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }
.fade-in:nth-child(5) { animation-delay: 0.5s; }
.fade-in:nth-child(6) { animation-delay: 0.6s; }

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--gray-200) 25%,
        var(--gray-100) 50%,
        var(--gray-200) 75%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* ============================================
   MODAL & OVERLAY
   ============================================ */

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    animation: fadeInUp 0.3s ease-out;
}

.modal-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-2xl);
    animation: slideDown 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: var(--spacing-lg);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
}

.modal-close:hover {
    color: var(--gray-900);
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumb {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    font-size: 0.875rem;
}

.breadcrumb-item {
    color: var(--gray-600);
}

.breadcrumb-item a {
    color: var(--primary-color);
}

.breadcrumb-item.active {
    color: var(--gray-900);
}

.breadcrumb-item::after {
    content: '/';
    margin-left: var(--spacing-md);
    color: var(--gray-400);
}

.breadcrumb-item:last-child::after {
    content: '';
}

/* ============================================
   PAGINATION
   ============================================ */

.pagination {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    padding: var(--spacing-2xl) 0;
}

.pagination-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    color: var(--gray-700);
}

.pagination-item:hover:not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-item.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ============================================
   TABS
   ============================================ */

.tabs {
    display: flex;
    gap: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: var(--spacing-2xl);
}

.tab {
    padding: var(--spacing-md) 0;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--gray-600);
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
    margin-bottom: -2px;
}

.tab:hover {
    color: var(--primary-color);
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.alert-success {
    background-color: #d1fae5;
    border: 1px solid #6ee7b7;
    color: #047857;
}

.alert-error {
    background-color: #fee2e2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border: 1px solid #fcd34d;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border: 1px solid #93c5fd;
    color: #1e40af;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .navbar-menu {
        display: none;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .navbar,
    footer,
    .btn,
    .icon-button {
        display: none;
    }
    
    body {
        background-color: white;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

button:focus,
a:focus,
input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ============================================
   DARK MODE (FUTURE SUPPORT)
   ============================================ */

@media (prefers-color-scheme: dark) {
    :root {
        --dark-bg: #0f172a;
        --light-bg: #1f2937;
        --gray-900: #f9fafb;
        --gray-700: #d1d5db;
    }
}