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

/* Gradient Shift Animation */
@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Float Animation for Shapes */
@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(5deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }
}

/* Pulse Animation for Orbs */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
}

/* Scroll Bounce Animation */
@keyframes scroll-bounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(10px);
        opacity: 0.5;
    }
}

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Up Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scale In Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Slide In From Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In From Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Rotate In */
@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-10deg) scale(0.9);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

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

/* ========================================
   UTILITY ANIMATION CLASSES
   ======================================== */

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

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

.animate-scale-in {
    animation: scaleIn 0.5s ease-out forwards;
}

.animate-slide-left {
    animation: slideInLeft 0.7s ease-out forwards;
}

.animate-slide-right {
    animation: slideInRight 0.7s ease-out forwards;
}

/* Stagger Delay Classes */
.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

/* ========================================
   SMOOTH SCROLLING & TRANSITIONS
   ======================================== */

/* Smooth transitions for all interactive elements */
a, button, .btn-primary, .btn-secondary, .project-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========================================
   PAGE LOAD ANIMATIONS
   ======================================== */

/* Initial state - elements hidden */
.hero-title .title-line {
    opacity: 0;
}

.hero-subtitle,
.hero-cta {
    opacity: 0;
}

/* Animate on load */
.hero-title .title-line:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero-title .title-line:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.hero-title .title-line:nth-child(3) {
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.hero-subtitle {
    animation: fadeIn 0.8s ease-out 0.8s forwards;
}

.hero-cta {
    animation: fadeInUp 0.8s ease-out 1s forwards;
}

/* ========================================
   SCROLL REVEAL (can be enhanced with JS)
   ======================================== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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