/* ===================================
   ANIMATIONS
   Wiederverwendbare Animationen für alle One-Page Projekte
   =================================== */

/* ===================================
   FADE IN ANIMATION
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

/* ===================================
   SLIDE ANIMATIONS
   =================================== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

.slide-in-up {
    animation: slideInUp 0.8s ease-out;
}

/* ===================================
   SCALE ANIMATIONS
   =================================== */
@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-up {
    animation: scaleUp 0.5s ease-out;
}

/* ===================================
   GRADIENT SHIFT (für Backgrounds)
   =================================== */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-animated {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

/* ===================================
   PULSE ANIMATION
   =================================== */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

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

.float {
    animation: float 3s ease-in-out infinite;
}

/* ===================================
   ROTATE ANIMATION
   =================================== */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.rotate {
    animation: rotate 10s linear infinite;
}

/* ===================================
   GLOW ANIMATION (für Buttons/Elemente)
   =================================== */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(255, 255, 255, 0.6);
    }
}

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

/* ===================================
   BOUNCE ANIMATION
   =================================== */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-30px);
    }
    60% {
        transform: translateY(-15px);
    }
}

.bounce {
    animation: bounce 2s infinite;
}

/* ===================================
   SHIMMER ANIMATION (für Loading States)
   =================================== */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    background: linear-gradient(
        to right,
        #f0f0f0 0%,
        #e0e0e0 50%,
        #f0f0f0 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* ===================================
   GLITCH EFFECT (für Dark/Modern Designs)
   =================================== */
@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
    100% {
        transform: translate(0);
    }
}

.glitch {
    animation: glitch 0.3s infinite;
}

/* ===================================
   SCROLL REVEAL (für Intersection Observer)
   =================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   DELAY UTILITIES (für gestaffelte Animationen)
   =================================== */
.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;
}

/* ===================================
   HOVER EFFECTS
   =================================== */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

/* ===================================
   LOADING SPINNER
   =================================== */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ===================================
   TEXT TYPING EFFECT (optional)
   =================================== */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

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

.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--primary);
    white-space: nowrap;
    animation: typing 3s steps(40) 1s 1 normal both, blink 0.75s step-end infinite;
}

/* ===================================
   PARALLAX EFFECT (via CSS)
   =================================== */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

@media (max-width: 768px) {
    .parallax {
        background-attachment: scroll;
    }
}

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