/* ============================================
   WORLD-CLASS UX ENHANCEMENTS FOR TRAQUIVA
   ============================================ */

/* ===== PERFORMANCE & OPTIMIZATION ===== */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== SMOOTH SCROLLING & SCROLL BEHAVIOR ===== */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* ===== CUSTOM CURSOR (Premium Feel) ===== */
body {
    cursor: default;
}

a, button, [role="button"] {
    cursor: pointer;
}

/* ===== ADVANCED LOADING STATES ===== */
.skeleton-loader {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

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

/* ===== PREMIUM BUTTON EFFECTS ===== */
.btn-premium {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
    backface-visibility: hidden;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-premium:hover::before {
    width: 300px;
    height: 300px;
}

.btn-premium:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.btn-premium:active {
    transform: translateY(0) scale(0.98);
}

/* ===== MAGNETIC BUTTON EFFECT ===== */
.btn-magnetic {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== GLASSMORPHISM EFFECTS ===== */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.glass-card-dark {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== ADVANCED CARD HOVER EFFECTS ===== */
.card-3d {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.card-3d:hover {
    transform: translateY(-12px) rotateX(2deg);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12),
                0 12px 24px rgba(0, 0, 0, 0.08);
}

/* ===== FLOATING ANIMATION ===== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

/* ===== GRADIENT ANIMATIONS ===== */
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-animated {
    background-size: 200% 200%;
    animation: gradient-shift 8s ease infinite;
}

/* ===== SHIMMER EFFECT ===== */
@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* ===== SMOOTH REVEAL ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* ===== SCROLL PROGRESS BAR ===== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: #111111;
    z-index: 9999;
    transition: width 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== STICKY HEADER ENHANCEMENT ===== */
.sticky-header {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sticky-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* ===== FOCUS STATES (Accessibility) ===== */
*:focus-visible {
    outline: 3px solid #111111;
    outline-offset: 2px;
    border-radius: 4px;
}

button:focus-visible,
a:focus-visible {
    outline: 3px solid #111111;
    outline-offset: 4px;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #111111, #444444);
    border-radius: 6px;
    border: 2px solid #f1f1f1;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #000000, #333333);
}

/* ===== SELECTION COLOR ===== */
::selection {
    background: #111111;
    color: #ffffff;
}

::-moz-selection {
    background: #111111;
    color: #ffffff;
}

/* ===== RIPPLE EFFECT ===== */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ===== SCALE ON HOVER ===== */
.scale-hover {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.scale-hover:hover {
    transform: scale(1.05);
}

/* ===== STAGGER ANIMATIONS ===== */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

/* ===== MOBILE OPTIMIZATIONS ===== */
@media (max-width: 768px) {
    .card-3d:hover {
        transform: translateY(-8px);
    }
    
    .btn-premium:hover {
        transform: translateY(-1px) scale(1.01);
    }
}

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