/* =============================================
   Surakschit Nirman — Animations
   Keyframes, scroll reveals, transitions
   ============================================= */

/* ─── Page Loader ────────────────────────────────────────── */
@keyframes loaderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes loaderPulse {
    0%, 100% { opacity: 0.4; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1); }
}

@keyframes loaderFadeOut {
    0% { opacity: 1; visibility: visible; }
    100% { opacity: 0; visibility: hidden; }
}

/* ─── Scroll Reveal Animations ───────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(60px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Staggered delays for grid items */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }
.reveal-delay-7 { transition-delay: 0.7s; }
.reveal-delay-8 { transition-delay: 0.8s; }

/* ─── Floating Animation ─────────────────────────────────── */
@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-15px) rotate(1deg); }
    75% { transform: translateY(-8px) rotate(-1deg); }
}

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

@keyframes floatReverse {
    0%, 100% { transform: translateY(-15px); }
    50% { transform: translateY(0); }
}

.float { animation: float 6s ease-in-out infinite; }
.float-slow { animation: floatSlow 8s ease-in-out infinite; }
.float-reverse { animation: floatReverse 7s ease-in-out infinite; }

/* ─── Pulse / Glow ───────────────────────────────────────── */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(212, 160, 23, 0.4); }
    50% { box-shadow: 0 0 0 20px rgba(212, 160, 23, 0); }
}

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

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

/* ─── Slide In ───────────────────────────────────────────── */
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

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

/* ─── Fade ───────────────────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

@keyframes scaleUp {
    from { transform: scale(1); }
    to { transform: scale(1.05); }
}

/* ─── Rotate ─────────────────────────────────────────────── */
@keyframes rotateSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.rotate-slow { animation: rotateSlow 30s linear infinite; }

/* ─── Geometric Shape Animations ─────────────────────────── */
@keyframes morphShape {
    0%, 100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    25% { border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%; }
    50% { border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%; }
    75% { border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%; }
}

.morph-shape {
    animation: morphShape 8s ease-in-out infinite;
}

/* ─── Gradient Move ──────────────────────────────────────── */
@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-animate {
    background-size: 200% 200%;
    animation: gradientMove 6s ease infinite;
}

/* ─── Text Reveal ────────────────────────────────────────── */
@keyframes textReveal {
    from {
        clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
    }
    to {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}

/* ─── Counter Number Animation ───────────────────────────── */
.counter-number {
    font-variant-numeric: tabular-nums;
}

/* ─── Decorative Shapes ──────────────────────────────────── */
.floating-shape {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.shape-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 1px solid rgba(212, 160, 23, 0.1);
    animation: float 8s ease-in-out infinite;
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 40px solid transparent;
    border-right: 40px solid transparent;
    border-bottom: 70px solid rgba(212, 160, 23, 0.05);
    animation: floatSlow 10s ease-in-out infinite;
}

.shape-hexagon {
    width: 100px;
    height: 57px;
    background: rgba(212, 160, 23, 0.04);
    position: relative;
    animation: float 12s ease-in-out infinite;
}

.shape-hexagon::before,
.shape-hexagon::after {
    content: '';
    position: absolute;
    width: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
}

.shape-hexagon::before {
    bottom: 100%;
    border-bottom: 28px solid rgba(212, 160, 23, 0.04);
}

.shape-hexagon::after {
    top: 100%;
    border-top: 28px solid rgba(212, 160, 23, 0.04);
}

.shape-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold-500);
    opacity: 0.3;
    animation: loaderPulse 3s ease-in-out infinite;
}

/* ─── Parallax Layers ────────────────────────────────────── */
.parallax-layer {
    position: absolute;
    will-change: transform;
}

/* ─── Image Reveal ───────────────────────────────────────── */
.image-reveal {
    position: relative;
    overflow: hidden;
}

.image-reveal::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--navy-800);
    z-index: 2;
    transform-origin: right;
    transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

/* ─── Gold Line Scroll Reveal ───────────────────────────── */
.gold-line {
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.gold-line.revealed,
.revealed .gold-line {
    transform: scaleX(1);
}

/* ─── 3D Tilt Card Effects & Light Glare ─────────────────── */
.tilt-card {
    position: relative;
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: transform 0.15s cubic-bezier(0.2, 0, 0.4, 1), box-shadow 0.3s ease;
    will-change: transform;
}

.tilt-glare {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    border-radius: inherit;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 75%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.tilt-card:hover .tilt-glare {
    opacity: 1;
}

/* ─── Magnetic Pull Container & Dynamic Ripple ───────────── */
.magnetic-btn {
    display: inline-block;
    transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform;
}

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

.btn-ripple .ripple-wave {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    transform: scale(0);
    animation: rippleWave 0.6s linear;
    pointer-events: none;
}

@keyframes rippleWave {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ─── Icon Hover Animations ──────────────────────────────── */
.feature-icon, .service-icon, .btn i, .nav-link i {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
}

.card:hover .feature-icon,
.card:hover .service-icon,
.feature-item:hover .feature-icon {
    transform: scale(1.18) rotate(6deg);
}

.btn:hover i {
    transform: translateX(4px);
}

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

    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale {
        opacity: 1;
        transform: none;
    }

    html { scroll-behavior: auto; }
}