/* ===== SCROLL ANIMATIONS ===== */
@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 fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== LOADING ANIMATIONS ===== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }
    40%, 43% {
        transform: translateY(-30px);
    }
    70% {
        transform: translateY(-15px);
    }
    90% {
        transform: translateY(-4px);
    }
}

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

.animated-gradient {
    background: linear-gradient(-45deg, #1677ff, #0958d9, #40a9ff, #1890ff, #69c0ff, #40a9ff);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
}

/* ===== TYPING ANIMATION ===== */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    from, to {
        border-color: transparent;
    }
    50% {
        border-color: var(--text-primary);
    }
}

.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--text-primary);
    white-space: nowrap;
    animation: 
        typing 3.5s steps(40, end),
        blink 0.75s step-end infinite;
}

/* ===== MORPHING ANIMATIONS ===== */
@keyframes morphing {
    0% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
    100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
}

.morphing-shape {
    animation: morphing 8s ease-in-out infinite;
}

/* ===== PARALLAX EFFECTS ===== */
.parallax-element {
    transform: translateZ(0);
    will-change: transform;
}

/* ===== HOVER ANIMATIONS ===== */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

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

.hover-rotate {
    transition: transform var(--transition-normal);
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

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

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(22, 119, 255, 0.4);
}

/* ===== STAGGER ANIMATIONS ===== */
.stagger-animation > * {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

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

/* ===== REVEAL ANIMATIONS ===== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== LOADING SPINNER ===== */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(22, 119, 255, 0.1);
    border-left: 4px solid #1677ff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ===== PROGRESS ANIMATIONS ===== */
@keyframes progressFill {
    from {
        width: 0%;
    }
    to {
        width: var(--progress-width, 100%);
    }
}

.progress-bar {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    height: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    animation: progressFill 2s ease-out forwards;
}

/* ===== FLOATING ELEMENTS ===== */
@keyframes floatUp {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

.floating-particle {
    position: absolute;
    pointer-events: none;
    animation: floatUp 3s ease-out forwards;
}

/* ===== RIPPLE EFFECT ===== */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::before {
    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-effect:active::before {
    width: 300px;
    height: 300px;
}

/* ===== SLIDE ANIMATIONS ===== */
@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

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

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

/* ===== UTILITY CLASSES ===== */
.animate-fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease forwards;
}

.animate-fade-in-scale {
    animation: fadeInScale 0.8s ease forwards;
}

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

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

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}