/* ============================================
   ANIMATIONS & KEYFRAMES
   ============================================ */

/* ============================================
   FADE ANIMATIONS
   ============================================ */

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

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

@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);
    }
}

/* ============================================
   FLOATING & MOVEMENT ANIMATIONS
   ============================================ */

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(10deg);
    }
}

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

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

/* ============================================
   BOUNCE ANIMATIONS
   ============================================ */

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

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

/* ============================================
   SCALE ANIMATIONS
   ============================================ */

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

@keyframes scaleUp {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.05);
    }
}

/* ============================================
   ROTATION ANIMATIONS
   ============================================ */

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

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

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* ============================================
   PULSE ANIMATIONS
   ============================================ */

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

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

/* ============================================
   GRADIENT ANIMATIONS
   ============================================ */

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

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

/* ============================================
   SHIMMER ANIMATION
   ============================================ */

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

/* ============================================
   WAVE ANIMATION
   ============================================ */

@keyframes wave {
    0%, 100% {
        transform: translateY(0);
    }
    25% {
        transform: translateY(-10px);
    }
    75% {
        transform: translateY(10px);
    }
}

/* ============================================
   FLIP ANIMATION
   ============================================ */

@keyframes flipX {
    0% {
        transform: rotateX(0deg);
    }
    100% {
        transform: rotateX(360deg);
    }
}

@keyframes flipY {
    0% {
        transform: rotateY(0deg);
    }
    100% {
        transform: rotateY(360deg);
    }
}

/* ============================================
   TYPOGRAPHY ANIMATIONS
   ============================================ */

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

@keyframes blink {
    0%, 49%, 100% {
        border-right-color: transparent;
    }
    50%, 99% {
        border-right-color: currentColor;
    }
}

/* ============================================
   COUNTER ANIMATION
   ============================================ */

@keyframes countUp {
    from {
        counter-increment: count 0;
    }
    to {
        counter-increment: count var(--target);
    }
}

/* ============================================
   ATTENTION SEEKERS
   ============================================ */

@keyframes heartBeat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.3);
    }
    50% {
        transform: scale(1.1);
    }
}

@keyframes swing {
    20% {
        transform: rotate(15deg);
    }
    40% {
        transform: rotate(-10deg);
    }
    60% {
        transform: rotate(5deg);
    }
    80% {
        transform: rotate(-5deg);
    }
    100% {
        transform: rotate(0deg);
    }
}

@keyframes wobble {
    0%, 100% {
        transform: translateX(0);
    }
    15% {
        transform: translateX(-5px) rotate(-5deg);
    }
    30% {
        transform: translateX(5px) rotate(3deg);
    }
    45% {
        transform: translateX(-5px) rotate(-3deg);
    }
    60% {
        transform: translateX(3px) rotate(2deg);
    }
    75% {
        transform: translateX(-2px) rotate(-1deg);
    }
}

/* ============================================
   UTILITY ANIMATIONS
   ============================================ */

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s ease-out;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

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

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

.animate-float {
    animation: float 4s ease-in-out infinite;
}

.animate-bounce {
    animation: bounce 2s ease-in-out infinite;
}

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

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

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

/* ============================================
   AOS (ANIMATE ON SCROLL) OVERRIDES
   ============================================ */

[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
    transition-duration: 0.6s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-left"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"] {
    transform: translateX(30px);
}

[data-aos="zoom-in"] {
    transform: scale(0.8);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: none !important;
}

/* Staggered animations */
[data-aos-delay="100"] {
    transition-delay: 100ms;
}

[data-aos-delay="150"] {
    transition-delay: 150ms;
}

[data-aos-delay="200"] {
    transition-delay: 200ms;
}

[data-aos-delay="250"] {
    transition-delay: 250ms;
}

[data-aos-delay="300"] {
    transition-delay: 300ms;
}

[data-aos-delay="350"] {
    transition-delay: 350ms;
}

[data-aos-delay="400"] {
    transition-delay: 400ms;
}

[data-aos-delay="450"] {
    transition-delay: 450ms;
}

[data-aos-delay="500"] {
    transition-delay: 500ms;
}

[data-aos-delay="550"] {
    transition-delay: 550ms;
}

/* ============================================
   BUTTON ANIMATIONS
   ============================================ */

.btn {
    position: relative;
    overflow: hidden;
}

.btn::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;
}

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

/* ============================================
   CARD ANIMATIONS
   ============================================ */

.service-card,
.feature-card,
.portfolio-card,
.testimonial-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    opacity: 0;
}

/* ============================================
   LINK ANIMATIONS
   ============================================ */

a {
    position: relative;
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
}

a:hover::after {
    width: 100%;
}

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

.loading {
    animation: spin 1s linear infinite;
}

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

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

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

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

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

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

/* ============================================
   FORM ANIMATIONS
   ============================================ */

input:focus,
textarea:focus {
    animation: scaleUp 0.3s ease;
}

input::placeholder,
textarea::placeholder {
    transition: opacity 0.3s ease;
}

input:focus::placeholder,
textarea:focus::placeholder {
    opacity: 0.5;
}

/* ============================================
   TEXT ANIMATIONS
   ============================================ */

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

.text-gradient {
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--primary));
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: highlightText 3s ease infinite;
}

/* ============================================
   MOBILE-SPECIFIC ANIMATIONS
   ============================================ */

@media (max-width: 640px) {
    [data-aos] {
        transition-duration: 0.4s;
    }

    .btn {
        transition-duration: 0.2s;
    }

    /* Reduce animation complexity on mobile */
    @media (prefers-reduced-motion: no-preference) {
        .blob {
            animation: float 8s ease-in-out infinite;
        }
    }
}

/* ============================================
   TRANSITION UTILITIES
   ============================================ */

.transition-all {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-colors {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.transition-transform {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-opacity {
    transition: opacity 0.3s ease;
}