/* ============================================================
   GOLDEN KEY HOLDING — ANIMATIONS CSS
   Description: All keyframe animations, scroll reveals, transitions
   ============================================================ */

/* ─── KEYFRAME ANIMATIONS ─── */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

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

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

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(1deg); }
    75% { transform: translateY(5px) rotate(-1deg); }
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

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

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes rotateSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

@keyframes borderGlow {
    0%, 100% { border-color: rgba(var(--color-gold-rgb), 0.3); box-shadow: 0 0 20px rgba(var(--color-gold-rgb), 0.1); }
    50% { border-color: rgba(var(--color-gold-rgb), 0.8); box-shadow: 0 0 40px rgba(var(--color-gold-rgb), 0.3); }
}

@keyframes particleFloat {
    0% { transform: translateY(100vh) translateX(0) scale(0); opacity: 0; }
    10% { opacity: 1; transform: translateY(90vh) translateX(10px) scale(1); }
    90% { opacity: 0.8; }
    100% { transform: translateY(-10vh) translateX(-10px) scale(0.5); opacity: 0; }
}

@keyframes ripple {
    0% { transform: scale(0); opacity: 1; }
    100% { transform: scale(4); opacity: 0; }
}

@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

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

@keyframes morphShape {
    0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    50% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); opacity: 0.8; }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes spinIn {
    from { transform: rotate(-180deg) scale(0); opacity: 0; }
    to { transform: rotate(0) scale(1); opacity: 1; }
}

@keyframes waveText {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

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

@keyframes progressBar {
    from { width: 0; }
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 5px rgba(var(--color-gold-rgb), 0.3), 0 0 10px rgba(var(--color-gold-rgb), 0.1); }
    50% { box-shadow: 0 0 20px rgba(var(--color-gold-rgb), 0.5), 0 0 40px rgba(var(--color-gold-rgb), 0.2); }
}

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

@keyframes expandWidth {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes heroParticle {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    20% { opacity: 0.6; }
    100% { transform: translateY(-120vh) translateX(50px); opacity: 0; }
}

/* ─── SCROLL REVEAL CLASSES ─── */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

.reveal-rotate {
    opacity: 0;
    transform: rotate(-5deg) scale(0.9);
    transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

.reveal-rotate.active {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Staggered delays */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }
.delay-6 { transition-delay: 0.6s !important; }
.delay-7 { transition-delay: 0.7s !important; }
.delay-8 { transition-delay: 0.8s !important; }

/* ─── LOADING ANIMATION ─── */

.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--color-primary);
    z-index: var(--z-loading);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-logo {
    font-size: 3rem;
    color: var(--color-gold);
    margin-bottom: 2rem;
    animation: pulse 1.5s ease-in-out infinite;
}

.loading-bar {
    width: 200px;
    height: 3px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    overflow: hidden;
}

.loading-bar::after {
    content: '';
    display: block;
    height: 100%;
    width: 40%;
    background: var(--gradient-gold);
    border-radius: 10px;
    animation: loadingProgress 1.5s ease-in-out infinite;
}

@keyframes loadingProgress {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(350%); }
}

/* ─── HOVER ANIMATIONS ─── */

.hover-lift {
    transition: transform var(--duration-normal) var(--ease-spring), box-shadow var(--duration-normal) var(--ease-default);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.hover-lift-sm {
    transition: transform var(--duration-normal) var(--ease-spring), box-shadow var(--duration-normal) var(--ease-default);
}

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

.hover-scale {
    transition: transform var(--duration-normal) var(--ease-spring);
}

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

.hover-glow:hover {
    box-shadow: var(--shadow-gold);
}

/* ─── MAGNETIC BUTTON EFFECT ─── */

.magnetic-btn {
    position: relative;
    transition: transform 0.3s var(--ease-spring);
    will-change: transform;
}

/* ─── CARD TILT ─── */

.tilt-card {
    transform-style: preserve-3d;
    transition: transform var(--duration-normal) var(--ease-default);
}

.tilt-card .tilt-content {
    transform: translateZ(30px);
}

/* ─── ANIMATED BORDER ─── */

.animated-border {
    position: relative;
    overflow: hidden;
}

.animated-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: conic-gradient(from 0deg, transparent, var(--color-gold), transparent, var(--color-gold), transparent);
    animation: rotate 4s linear infinite;
    border-radius: inherit;
    z-index: -1;
}

.animated-border::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: var(--color-surface);
    border-radius: inherit;
    z-index: -1;
}

/* ─── GOLD PARTICLES ─── */

.gold-particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.gold-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-gold);
    border-radius: 50%;
    opacity: 0;
    animation: heroParticle 8s linear infinite;
}

/* ─── SKELETON LOADING ─── */

.skeleton {
    background: linear-gradient(90deg, var(--color-surface-alt) 25%, var(--color-surface) 50%, var(--color-surface-alt) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* ─── PROGRESS BAR (TOP) ─── */

.progress-bar-top {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-gold);
    z-index: calc(var(--z-fixed) + 1);
    transition: width 0.1s linear;
    border-radius: 0 2px 2px 0;
}

/* ─── REDUCED MOTION ─── */

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

    .reveal, .reveal-left, .reveal-right, .reveal-scale, .reveal-rotate {
        opacity: 1;
        transform: none;
    }
}

/* ─── PAGE TRANSITION ─── */

.page-transition {
    position: fixed;
    inset: 0;
    background: var(--color-primary);
    z-index: var(--z-loading);
    transform: translateY(100%);
    transition: transform 0.6s var(--ease-smooth);
}

.page-transition.active {
    transform: translateY(0);
}

/* ─── NOTIFICATION TOAST ─── */

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    background: var(--color-surface);
    color: var(--color-text);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-toast);
    transition: transform 0.4s var(--ease-spring);
    border: 1px solid var(--color-gold-glow);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* ─── CURSOR FOLLOWER ─── */

.cursor-follower {
    position: fixed;
    width: 30px;
    height: 30px;
    border: 2px solid var(--color-gold);
    border-radius: 50%;
    pointer-events: none;
    z-index: var(--z-tooltip);
    transition: transform 0.15s var(--ease-out), width 0.3s, height 0.3s, border-color 0.3s;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
}

.cursor-follower.active {
    width: 50px;
    height: 50px;
    border-color: var(--color-gold);
    background: rgba(var(--color-gold-rgb), 0.1);
}

@media (max-width: 1024px) {
    .cursor-follower { display: none; }
}