/* KSN TECHZONE — Transitions, Animations & 3D Motion */

/* Page loader */
.page-loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

body:not(.loaded) {
    overflow: hidden;
}

.loader-logo {
    height: 80px;
    animation: logoFloat3d 2s ease-in-out infinite;
    filter: drop-shadow(0 8px 24px rgba(0, 180, 216, 0.4));
}

.loader-bar {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    margin-top: 1.5rem;
    overflow: hidden;
}

.loader-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--cyan), var(--orange));
    border-radius: 4px;
    animation: loaderProgress 1.2s ease forwards;
}

.loader-text {
    color: var(--cyan);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    margin-top: 1rem;
    animation: pulse 1.5s ease infinite;
}

/* Scroll progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--cyan), var(--orange));
    z-index: 10001;
    transition: width 0.1s linear;
    box-shadow: 0 0 12px rgba(0, 180, 216, 0.6);
}

/* Header scroll state */
.site-header {
    transition: padding 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.4s ease,
                background 0.4s ease;
}

.site-header.scrolled {
    box-shadow: 0 8px 32px rgba(11, 30, 61, 0.25);
}

.site-header.scrolled .header-inner {
    padding: 0.5rem 0;
}

.site-header.scrolled .logo-img {
    height: 40px;
    transition: height 0.4s ease;
}

.logo-img {
    transition: transform 0.4s ease, height 0.4s ease;
}

.logo-link:hover .logo-img {
    transform: perspective(400px) rotateY(-8deg) scale(1.05);
}

/* Hero 3D layer */
.hero {
    perspective: 1200px;
    overflow: hidden;
}

.hero-3d-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    transform-style: preserve-3d;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    will-change: transform;
}

.hero-orb-1 {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, var(--cyan), transparent 70%);
    top: -80px;
    right: 10%;
    animation: orbFloat1 8s ease-in-out infinite;
}

.hero-orb-2 {
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, var(--orange), transparent 70%);
    bottom: -60px;
    left: 5%;
    animation: orbFloat2 10s ease-in-out infinite;
}

.hero-orb-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--blue), transparent 70%);
    top: 40%;
    left: 50%;
    animation: orbFloat3 12s ease-in-out infinite;
}

.hero-circuit {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.08;
}

.hero-circuit line,
.hero-circuit circle {
    stroke: var(--navy);
    stroke-width: 1;
    fill: none;
}

.hero-circuit circle {
    fill: var(--cyan);
    stroke: none;
}

.hero-grid-3d {
    position: absolute;
    inset: -50%;
    background-image:
        linear-gradient(rgba(30, 111, 217, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 111, 217, 0.06) 1px, transparent 1px);
    background-size: 48px 48px;
    transform: perspective(800px) rotateX(60deg) translateZ(-100px);
    animation: gridDrift 20s linear infinite;
}

/* Hero content reveals */
.hero-badge,
.hero h1,
.hero-lead,
.hero-actions,
.hero-stats .stat {
    opacity: 0;
    transform: translateY(40px) rotateX(10deg);
    transform-origin: center bottom;
}

.hero-loaded .hero-badge {
    animation: heroReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}

.hero-loaded .hero h1 {
    animation: heroReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.25s forwards;
}

.hero-loaded .hero-lead {
    animation: heroReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
}

.hero-loaded .hero-actions {
    animation: heroReveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.55s forwards;
}

.hero-loaded .hero-stats .stat:nth-child(1) {
    animation: heroReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.7s forwards;
}

.hero-loaded .hero-stats .stat:nth-child(2) {
    animation: heroReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.85s forwards;
}

.hero-loaded .hero-stats .stat:nth-child(3) {
    animation: heroReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1s forwards;
}

.gradient-text {
    display: inline-block;
    animation: gradientShift 4s ease infinite;
    background-size: 200% auto;
}

/* Marquee */
.marquee-section {
    background: var(--navy);
    padding: 1rem 0;
    overflow: hidden;
    border-top: 2px solid var(--cyan);
    border-bottom: 2px solid var(--orange);
}

.marquee-wrap {
    overflow: hidden;
    width: 100%;
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marqueeScroll 35s linear infinite;
}

.marquee-track:hover {
    animation-play-state: paused;
}

.marquee-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 2rem;
    white-space: nowrap;
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.marquee-dot {
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, var(--cyan), var(--orange));
    border-radius: 50%;
    flex-shrink: 0;
    animation: dotPulse 2s ease infinite;
}

/* Scroll reveal */
.reveal,
.reveal-left,
.reveal-right,
.reveal-scale,
.reveal-rotate {
    opacity: 0;
    transition: none;
}

.reveal {
    transform: translateY(60px);
}

.reveal-left {
    transform: translateX(-60px);
}

.reveal-right {
    transform: translateX(60px);
}

.reveal-scale {
    transform: scale(0.85);
}

.reveal-rotate {
    transform: perspective(800px) rotateY(-15deg) translateY(40px);
}

.reveal.active,
.reveal-left.active,
.reveal-right.active,
.reveal-scale.active,
.reveal-rotate.active {
    opacity: 1;
    transform: none;
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(40px);
}

.stagger-children.active > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children.active > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children.active > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children.active > *:nth-child(4) { transition-delay: 0.2s; }
.stagger-children.active > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children.active > *:nth-child(6) { transition-delay: 0.3s; }
.stagger-children.active > *:nth-child(7) { transition-delay: 0.35s; }
.stagger-children.active > *:nth-child(8) { transition-delay: 0.4s; }
.stagger-children.active > *:nth-child(9) { transition-delay: 0.45s; }

.stagger-children.active > * {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 3D tilt cards */
.tilt-3d {
    transform-style: preserve-3d;
    transition: transform 0.15s ease-out, box-shadow 0.3s ease;
    will-change: transform;
}

.tilt-3d .tilt-shine {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.25) 0%,
        transparent 50%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 2;
}

.tilt-3d:hover .tilt-shine {
    opacity: 1;
}

.feature-card,
.service-card,
.dashboard-card,
.mission-card,
.info-card,
.auth-card,
.highlight-card {
    position: relative;
    overflow: hidden;
}

.feature-card::after,
.service-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 40%, rgba(0, 180, 216, 0.08) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    pointer-events: none;
}

.feature-card:hover::after,
.service-card:hover::after {
    transform: translateX(100%);
}

/* 3D flip on feature numbers */
.feature-num {
    display: inline-block;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-style: preserve-3d;
}

.feature-card:hover .feature-num {
    transform: perspective(500px) rotateY(360deg) scale(1.1);
    color: var(--blue);
}

/* Buttons enhanced */
.btn {
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease,
                background 0.3s ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    animation: btnGlow 3s ease infinite;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
}

.btn:active {
    transform: translateY(0) scale(0.98);
}

/* CTA 3D box */
.cta-box {
    transform-style: preserve-3d;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.cta-box.parallax-active {
    will-change: transform;
}

/* Parallax layers */
.parallax-slow,
.parallax-medium,
.parallax-fast {
    will-change: transform;
    transition: transform 0.1s linear;
}

/* Floating call pulse */
.floating-call {
    animation: callPulse 2.5s ease infinite;
}

.floating-call::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--orange);
    animation: ringExpand 2.5s ease infinite;
}

/* Page hero animations */
.page-hero h1,
.page-hero .section-label,
.page-hero-lead {
    opacity: 0;
    transform: translateY(30px);
}

.page-hero-loaded .section-label {
    animation: heroReveal 0.7s ease 0.1s forwards;
}

.page-hero-loaded h1 {
    animation: heroReveal 0.8s ease 0.2s forwards;
}

.page-hero-loaded .page-hero-lead {
    animation: heroReveal 0.8s ease 0.35s forwards;
}

/* Nav toggle animation */
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-toggle span {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Spec tags pop */
.spec-tags span {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                background 0.3s ease,
                box-shadow 0.3s ease;
}

.spec-tags span:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 6px 16px rgba(30, 111, 217, 0.2);
}

/* Process steps 3D */
.process-step {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-style: preserve-3d;
}

.process-step:hover {
    transform: perspective(600px) translateZ(20px) translateY(-8px);
}

.process-step:hover .step-num {
    transform: perspective(400px) rotateY(180deg);
    transition: transform 0.6s ease;
}

/* Footer reveal */
.site-footer .footer-brand,
.site-footer .footer-links,
.site-footer .footer-contact {
    opacity: 0;
    transform: translateY(30px);
}

.site-footer.footer-visible .footer-brand {
    animation: heroReveal 0.7s ease 0.1s forwards;
}

.site-footer.footer-visible .footer-links {
    animation: heroReveal 0.7s ease 0.2s forwards;
}

.site-footer.footer-visible .footer-contact {
    animation: heroReveal 0.7s ease 0.3s forwards;
}

/* Counter stat glow */
.stat strong {
    transition: text-shadow 0.3s ease;
}

.stat.counted strong {
    text-shadow: 0 0 20px rgba(30, 111, 217, 0.4);
}

/* Form focus glow */
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    box-shadow: 0 0 0 4px rgba(0, 180, 216, 0.2);
    transform: translateY(-2px);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

/* Link arrow slide */
.link-arrow {
    display: inline-block;
    transition: transform 0.3s ease, color 0.3s ease;
}

.link-arrow:hover {
    transform: translateX(8px);
}

/* Fade-in legacy upgrade */
.fade-in {
    animation: fadeInUp3d 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Keyframes */
@keyframes logoFloat3d {
    0%, 100% { transform: perspective(500px) rotateY(0deg) translateY(0); }
    50% { transform: perspective(500px) rotateY(10deg) translateY(-12px); }
}

@keyframes loaderProgress {
    to { width: 100%; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-30px, 40px) scale(1.1); }
    66% { transform: translate(20px, -20px) scale(0.95); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(40px, -30px) scale(1.15); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

@keyframes gridDrift {
    0% { transform: perspective(800px) rotateX(60deg) translateZ(-100px) translateY(0); }
    100% { transform: perspective(800px) rotateX(60deg) translateZ(-100px) translateY(48px); }
}

@keyframes heroReveal {
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 100% center; }
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes dotPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.7; }
}

@keyframes btnGlow {
    0%, 100% { box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4); }
    50% { box-shadow: 0 4px 24px rgba(245, 158, 11, 0.65); }
}

@keyframes callPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

@keyframes ringExpand {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.5); opacity: 0; }
}

@keyframes fadeInUp3d {
    from {
        opacity: 0;
        transform: perspective(800px) translateY(40px) rotateX(8deg);
    }
    to {
        opacity: 1;
        transform: perspective(800px) translateY(0) rotateX(0);
    }
}

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

    .marquee-track {
        animation: none;
    }

    .reveal, .reveal-left, .reveal-right, .reveal-scale, .reveal-rotate,
    .stagger-children > * {
        opacity: 1;
        transform: none;
    }

    .hero-badge, .hero h1, .hero-lead, .hero-actions, .hero-stats .stat {
        opacity: 1;
        transform: none;
    }
}