/* ============================================
   SAMRIDHI CLASSES — ANIMATIONS
   ============================================ */

/* ── Fade Animations ── */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

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

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

    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 fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

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

/* ── Float / Levitate ── */
@keyframes float {

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

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

@keyframes floatSlow {

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

    50% {
        transform: translateY(-8px) rotate(1deg);
    }
}

/* ── Gold Shimmer ── */
@keyframes shimmer {
    0% {
        background-position: -200% center;
    }

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

@keyframes goldPulse {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(212, 175, 55, 0.1);
    }

    50% {
        box-shadow: 0 0 40px rgba(212, 175, 55, 0.3);
    }
}

@keyframes goldGlow {

    0%,
    100% {
        text-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
    }

    50% {
        text-shadow: 0 0 30px rgba(212, 175, 55, 0.5);
    }
}

/* ── Rotate ── */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes spinSlow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ── Scroll Indicator ── */
@keyframes scrollBounce {

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

    50% {
        transform: translateY(10px);
        opacity: 0.5;
    }
}

/* ── Line Draw ── */
@keyframes drawLine {
    from {
        width: 0;
    }

    to {
        width: 60px;
    }
}

/* ── Scale Pop ── */
@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }

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

/* ── Particle Drift ── */
@keyframes drift {
    0% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0;
    }

    20% {
        opacity: 1;
    }

    80% {
        opacity: 1;
    }

    100% {
        transform: translate(var(--drift-x, 100px), var(--drift-y, -200px)) rotate(360deg);
        opacity: 0;
    }
}

/* ── Stagger Classes ── */
.stagger-1 {
    animation-delay: 0.1s;
}

.stagger-2 {
    animation-delay: 0.2s;
}

.stagger-3 {
    animation-delay: 0.3s;
}

.stagger-4 {
    animation-delay: 0.4s;
}

.stagger-5 {
    animation-delay: 0.5s;
}

.stagger-6 {
    animation-delay: 0.6s;
}

/* ── Reveal Classes (used by Intersection Observer) ── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-luxury), transform 0.8s var(--ease-luxury);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: opacity 0.8s var(--ease-luxury), transform 0.8s var(--ease-luxury);
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(60px);
    transition: opacity 0.8s var(--ease-luxury), transform 0.8s var(--ease-luxury);
}

.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.8s var(--ease-luxury), transform 0.8s var(--ease-luxury);
}

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

/* ── Parallax Layers ── */
.parallax-slow {
    will-change: transform;
}

.parallax-medium {
    will-change: transform;
}

.parallax-fast {
    will-change: transform;
}

/* ── Card Tilt 3D ── */
.tilt-card {
    transform-style: preserve-3d;
    transition: transform 0.3s var(--ease-smooth);
}

.tilt-card .tilt-card__inner {
    transform: translateZ(30px);
}

/* ── Hover Glow Effect ── */
.hover-glow {
    position: relative;
    overflow: hidden;
}

.hover-glow::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%),
            rgba(212, 175, 55, 0.12) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.hover-glow:hover::after {
    opacity: 1;
}

/* ── Button Hover Effects ── */
.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.6s ease;
}

.btn-shimmer:hover::before {
    left: 100%;
}