/**
 * Professional UX Enhancements for Epic Prompts
 * Modern, clean, and user-friendly interface styles
 */

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

* {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-up {
    animation: slideUp 0.4s ease-out;
}

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

/* ========================================
   ENHANCED BUTTONS
   ======================================== */

.btn {
    position: relative;
    overflow: hidden;
    font-weight: 600;
    letter-spacing: 0.025em;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* ========================================
   CARD ENHANCEMENTS
   ======================================== */

.prompt-card,
.stat-card,
.widget {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.prompt-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.prompt-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.prompt-card:hover::after {
    opacity: 1;
}

/* ========================================
   IMPROVED FORMS
   ======================================== */

.search-input,
.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
textarea,
select {
    border: 2px solid #E5E7EB;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
}

.search-input:focus,
.form-input:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--ep-primary, #6366F1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

/* ========================================
   BADGES & LABELS
   ======================================== */

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
}

.badge-primary {
    background: #EEF2FF;
    color: #6366F1;
}

.badge-secondary {
    background: #FCE7F3;
    color: #EC4899;
}

.badge-success {
    background: #D1FAE5;
    color: #059669;
}

.badge-warning {
    background: #FEF3C7;
    color: #F59E0B;
}

.badge-info {
    background: #DBEAFE;
    color: #3B82F6;
}

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

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

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: 0.5rem 0.75rem;
    background: #1F2937;
    color: white;
    font-size: 0.875rem;
    border-radius: 0.375rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1000;
}

[data-tooltip]::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: #1F2937;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

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

[data-tooltip]:hover::before {
    transform: translateX(-50%) translateY(-4px);
}

/* ========================================
   NAVIGATION IMPROVEMENTS
   ======================================== */

.site-header {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-menu a {
    position: relative;
    transition: color 0.2s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--ep-primary, #6366F1);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

/* ========================================
   MODAL/DIALOG
   ======================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: white;
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    animation: slideUp 0.3s ease;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #E5E7EB;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #E5E7EB;
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* ========================================
   GRID IMPROVEMENTS
   ======================================== */

.prompts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .prompts-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ========================================
   LEADERBOARD ENHANCEMENTS
   ======================================== */

.leaderboard-row {
    display: grid;
    grid-template-columns: 60px 1fr auto auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #F3F4F6;
    transition: background 0.2s ease;
}

.leaderboard-row:hover {
    background: #F9FAFB;
}

.leaderboard-row:last-child {
    border-bottom: none;
}

.rank-number {
    font-size: 1.25rem;
    font-weight: 700;
    color: #9CA3AF;
    text-align: center;
}

.rank-number.top-3 {
    font-size: 1.5rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.level-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #6366F1;
    color: white;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ========================================
   STATS & METRICS
   ======================================== */

.stat-card {
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--ep-primary, #6366F1), var(--ep-secondary, #EC4899));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover::before {
    opacity: 1;
}

/* ========================================
   FILTERS SECTION
   ======================================== */

.filters-container {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.filter-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #374151;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   REACTIONS BUBBLE
   ======================================== */

.reaction-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    border: 2px solid #E5E7EB;
    border-radius: 9999px;
    background: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.125rem;
}

.reaction-btn:hover {
    transform: scale(1.1);
    border-color: var(--ep-primary, #6366F1);
    background: #F9FAFB;
}

.reaction-btn.active {
    background: #EEF2FF;
    border-color: #6366F1;
}

.reaction-btn:active {
    transform: scale(0.95);
}

/* ========================================
   COPY BUTTON ANIMATION
   ======================================== */

.copy-btn {
    position: relative;
    transition: all 0.2s ease;
}

.copy-btn.copied {
    background: var(--ep-success, #10B981) !important;
    transform: scale(0.95);
}

.copy-btn.copied::after {
    content: '✓ Copied!';
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.25rem 0.5rem;
    background: #1F2937;
    color: white;
    font-size: 0.75rem;
    border-radius: 0.25rem;
    white-space: nowrap;
    animation: fadeIn 0.2s ease;
}

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

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

.float-animation {
    animation: float 3s ease-in-out infinite;
}

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

@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .stat-card {
        padding: 1.5rem 1rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .leaderboard-row {
        grid-template-columns: 40px 1fr auto;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
    }

    .user-avatar {
        width: 40px;
        height: 40px;
    }
}

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

@media print {
    .btn, .filters-container, .reaction-btn, .nav-menu {
        display: none !important;
    }
}

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

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

:focus-visible {
    outline: 2px solid var(--ep-primary, #6366F1);
    outline-offset: 2px;
}

/* ========================================
   GRADIENT BACKGROUNDS
   ======================================== */

.gradient-primary {
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
}

.gradient-secondary {
    background: linear-gradient(135deg, #F093FB 0%, #F5576C 100%);
}

.gradient-success {
    background: linear-gradient(135deg, #4ADE80 0%, #22C55E 100%);
}

/* ========================================
   IMAGE OPTIMIZATIONS
   ======================================== */

img {
    max-width: 100%;
    height: auto;
}

.lazy-image {
    filter: blur(10px);
    transition: filter 0.3s ease;
}

.lazy-image.loaded {
    filter: blur(0);
}

/* ========================================
   PERFORMANCE: Reduce Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}