/* ============================================================
   ANIMATIONS.CSS — Keyframes, Scroll Reveals, Hover Effects
   Refined with smooth cubic-bezier easing and new effects
   ============================================================ */

/* --- Custom easing curves --- */
:root {
    --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-decel: cubic-bezier(0, 0, 0.2, 1);
    --ease-accel: cubic-bezier(0.4, 0, 1, 1);
    --ease-butter: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-25px);
    }

    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(0.92);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes blurIn {
    from {
        opacity: 0;
        filter: blur(12px);
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        filter: blur(0);
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(60px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    25% {
        transform: translateY(-6px);
    }

    50% {
        transform: translateY(-12px);
    }

    75% {
        transform: translateY(-4px);
    }
}

@keyframes floatSlow {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    25% {
        transform: translateY(-5px) rotate(0.5deg);
    }

    50% {
        transform: translateY(-10px) rotate(0deg);
    }

    75% {
        transform: translateY(-3px) rotate(-0.5deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes pulseDot {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(var(--accent-2-rgb), 0.4);
    }

    50% {
        transform: scale(1.1);
        box-shadow: 0 0 0 8px rgba(var(--accent-2-rgb), 0);
    }
}

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

    100% {
        background-position: 200% center;
    }
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

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

    100% {
        transform: translateX(-50%);
    }
}

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.5;
    }

    100% {
        transform: scale(4);
        opacity: 0;
    }
}

@keyframes borderGlow {

    0%,
    100% {
        border-color: rgba(var(--accent-rgb), 0.2);
    }

    50% {
        border-color: rgba(var(--accent-rgb), 0.5);
    }
}

@keyframes expandWidth {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

@keyframes gentlePulse {

    0%,
    100% {
        opacity: 0.6;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.03);
    }
}

@keyframes drawLine {
    from {
        stroke-dashoffset: 100%;
    }

    to {
        stroke-dashoffset: 0;
    }
}

/* --- Scroll Reveal System (refined timing) --- */
.reveal {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s var(--ease-smooth),
        transform 0.8s var(--ease-smooth);
    will-change: opacity, transform;
}

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

.reveal--left {
    transform: translateX(-40px);
}

.reveal--left.revealed {
    transform: translateX(0);
}

.reveal--right {
    transform: translateX(40px);
}

.reveal--right.revealed {
    transform: translateX(0);
}

.reveal--scale {
    transform: scale(0.88);
}

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

.reveal--blur {
    filter: blur(10px);
    transform: translateY(15px);
}

.reveal--blur.revealed {
    filter: blur(0);
    transform: translateY(0);
}

/* Stagger children with smoother offsets */
.reveal--stagger>* {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.7s var(--ease-smooth),
        transform 0.7s var(--ease-smooth);
}

.reveal--stagger.revealed>* {
    opacity: 1;
    transform: translateY(0);
}

.reveal--stagger.revealed>*:nth-child(1) {
    transition-delay: 0ms;
}

.reveal--stagger.revealed>*:nth-child(2) {
    transition-delay: 100ms;
}

.reveal--stagger.revealed>*:nth-child(3) {
    transition-delay: 200ms;
}

.reveal--stagger.revealed>*:nth-child(4) {
    transition-delay: 300ms;
}

.reveal--stagger.revealed>*:nth-child(5) {
    transition-delay: 400ms;
}

.reveal--stagger.revealed>*:nth-child(6) {
    transition-delay: 500ms;
}

.reveal--stagger.revealed>*:nth-child(7) {
    transition-delay: 600ms;
}

.reveal--stagger.revealed>*:nth-child(8) {
    transition-delay: 700ms;
}

.reveal--stagger.revealed>*:nth-child(9) {
    transition-delay: 800ms;
}

.reveal--stagger.revealed>*:nth-child(10) {
    transition-delay: 900ms;
}

/* --- Continuous Loops (smoother) --- */
.anim-float {
    animation: float 7s var(--ease-butter) infinite;
}

.anim-float-slow {
    animation: floatSlow 10s var(--ease-butter) infinite;
}

.anim-pulse {
    animation: pulse 2.5s var(--ease-butter) infinite;
}

.anim-pulse-dot {
    animation: pulseDot 2.5s var(--ease-butter) infinite;
}

.anim-shimmer {
    background-size: 200% 100%;
    animation: shimmer 3.5s var(--ease-smooth) infinite;
}

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

.anim-marquee {
    animation: marquee 30s linear infinite;
}

.anim-border-glow {
    animation: borderGlow 4s var(--ease-butter) infinite;
}

.anim-gentle-pulse {
    animation: gentlePulse 3s var(--ease-butter) infinite;
}

/* --- Hover Effects (smoother) --- */
.hover-lift {
    transition: transform 0.4s var(--ease-smooth),
        box-shadow 0.4s var(--ease-smooth);
}

.hover-lift:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), var(--shadow-glow);
}

.hover-glow {
    transition: box-shadow 0.4s var(--ease-smooth),
        border-color 0.4s var(--ease-smooth);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
    border-color: rgba(var(--accent-rgb), 0.4);
}

.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.4s var(--ease-smooth);
    border-radius: var(--radius-full);
}

.hover-underline:hover::after {
    width: 100%;
}

.hover-shine {
    position: relative;
    overflow: hidden;
}

.hover-shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transition: left 0.6s var(--ease-smooth);
}

.hover-shine:hover::after {
    left: 100%;
}

/* --- 3D Tilt effect (applied via JS) --- */
.tilt-card {
    transition: transform 0.15s var(--ease-decel);
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* --- Page Transition --- */
.page-transition {
    animation: blurIn 0.6s var(--ease-smooth);
}

/* --- Gradient Text Animated --- */
.gradient-text-animated {
    background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-glow));
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
}

/* --- Background Particles --- */
.bg-particles {
    position: relative;
    overflow: hidden;
}

.bg-particles::before,
.bg-particles::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    opacity: 0.07;
    pointer-events: none;
}

.bg-particles::before {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: -200px;
    right: -100px;
    animation: floatSlow 14s var(--ease-butter) infinite;
}

.bg-particles::after {
    width: 300px;
    height: 300px;
    background: var(--accent-2);
    bottom: -150px;
    left: -100px;
    animation: floatSlow 12s var(--ease-butter) infinite reverse;
}