/* =================================================================
   BENDLESS TECH - ANIMATIONS CSS
   Beam nodes, traveling particles, scroll reveals, constellation
   ================================================================= */

/* ── Keyframes ─────────────────────────────────────────────────── */
@keyframes bt-load { 0% { width: 0; } 100% { width: 100%; } }
@keyframes bt-fadeIn { 0% { opacity: 0; transform: translateY(10px); } 100% { opacity: 1; transform: translateY(0); } }
@keyframes bt-noodleFloat {
    0%, 100% { transform: translateY(0) scaleY(1); opacity: 0.3; }
    50% { transform: translateY(-20px) scaleY(1.1); opacity: 0.6; }
}
@keyframes bt-pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2.5); opacity: 0; }
}
@keyframes bt-typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.3; }
    30% { transform: translateY(-6px); opacity: 1; }
}
@keyframes bt-beamRotate {
    0% { --bt-beam-angle: 0deg; }
    100% { --bt-beam-angle: 360deg; }
}
@keyframes bt-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes bt-particle {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}
@keyframes bt-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(108, 92, 231, 0.1); }
    50% { box-shadow: 0 0 40px rgba(108, 92, 231, 0.3); }
}
@keyframes bt-slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes bt-slideLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes bt-slideRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes bt-scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes bt-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
@keyframes bt-beamTravel {
    0% { top: -20%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 120%; opacity: 0; }
}
@keyframes bt-nodeGlow {
    0%, 100% { box-shadow: 0 0 8px var(--bt-gradient-1), 0 0 16px rgba(108,92,231,0.2); }
    50% { box-shadow: 0 0 16px var(--bt-gradient-2), 0 0 32px rgba(0,206,201,0.3); }
}

/* ── Trust Circle Keyframes ────────────────────────────────────── */
@keyframes bt-trustSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@keyframes bt-particleOrbit {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.6); }
    100% { opacity: 1; transform: scale(1); }
}
@keyframes bt-tickPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); filter: drop-shadow(0 0 12px var(--bt-gradient-1)); }
    50% { transform: translate(-50%, -50%) scale(1.15); filter: drop-shadow(0 0 24px var(--bt-gradient-2)); }
}

/* ── Scroll Reveal Base ────────────────────────────────────────── */
.bt-scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 600ms ease-in-out, transform 600ms ease-in-out;
}
.bt-scroll-reveal.bt-revealed {
    opacity: 1;
    transform: translateY(0) translateX(0);
}

/* Directional scroll reveal variants */
.bt-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 600ms ease-in-out, transform 600ms ease-in-out;
}
.bt-reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 600ms ease-in-out, transform 600ms ease-in-out;
}
.bt-reveal-center {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 600ms ease-in-out, transform 600ms ease-in-out;
}
.bt-reveal-left.bt-revealed,
.bt-reveal-right.bt-revealed,
.bt-reveal-center.bt-revealed {
    opacity: 1;
    transform: translateX(0) translateY(0);
}

/* ── Loading Dots Animation ────────────────────────────────────── */
.bt-loading-dots {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.bt-loading-dots .bt-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bt-gradient-2, #00cec9);
    animation: bt-loadingDot 1.2s ease-in-out infinite;
}
.bt-loading-dots .bt-dot:nth-child(2) { animation-delay: 200ms; }
.bt-loading-dots .bt-dot:nth-child(3) { animation-delay: 400ms; }
@keyframes bt-loadingDot {
    0%, 100% { transform: scale(0.5); opacity: 0.2; }
    50%      { transform: scale(1.2); opacity: 1; }
}

/* ── Page Transition Effect ────────────────────────────────────── */
.bt-page-transition-out {
    animation: bt-pageOut 350ms ease-in-out forwards;
}
.bt-page-transition-in {
    animation: bt-pageIn 350ms ease-in-out forwards;
}
@keyframes bt-pageOut {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(-20px); }
}
@keyframes bt-pageIn {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ── Unique Section Transitions ────────────────────────────────── */
.bt-hero.bt-revealed .bt-hero-inner { animation: bt-slideUp 0.8s ease forwards; }
.bt-hero.bt-revealed .bt-trust-circle-wrap { animation: bt-scaleIn 1s ease forwards 0.5s; opacity: 0; }
.bt-hero.bt-revealed .bt-hero-content { animation: bt-slideUp 0.8s ease forwards 0.2s; }
.bt-services .bt-bento-card.bt-revealed { animation: bt-scaleIn 0.6s ease forwards; }
.bt-brief-builder.bt-revealed .bt-brief-panel { animation: bt-slideUp 0.7s ease forwards; }
.bt-social-proof .bt-stat-card.bt-revealed { animation: bt-scaleIn 0.5s ease forwards; }
.bt-why-us .bt-bento-card.bt-revealed { animation: bt-slideUp 0.6s ease forwards; }
.bt-timeline .bt-timeline-step.bt-revealed { animation: bt-slideLeft 0.6s ease forwards; }
.bt-pricing .bt-pricing-card.bt-revealed { animation: bt-scaleIn 0.6s ease forwards; }
.bt-contact-section.bt-revealed .bt-chat-panel { animation: bt-slideUp 0.7s ease forwards; }
.bt-final-cta.bt-revealed .bt-cta-panel { animation: bt-scaleIn 0.7s ease forwards; }
.bt-portfolio-showcase .bt-portfolio-slide.bt-revealed { animation: bt-slideRight 0.6s ease forwards; }
.bt-case-node.bt-revealed { animation: bt-slideUp 0.6s ease forwards; }
.bt-case-node:nth-child(odd).bt-revealed { animation: bt-slideLeft 0.6s ease forwards; }
.bt-case-node:nth-child(even).bt-revealed { animation: bt-slideRight 0.6s ease forwards; }
.bt-journey-section.bt-revealed { animation: bt-slideUp 0.7s ease forwards; }

/* ── Traveling Particle Styles ─────────────────────────────────── */
.bt-particle {
    position: fixed;
    width: 3px; height: 3px;
    background: var(--bt-gradient-2);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    box-shadow: 0 0 6px var(--bt-gradient-2);
    animation: bt-particle 8s linear infinite;
}

/* ── Timeline Beam Animation ───────────────────────────────────── */
.bt-timeline-beam {
    overflow: hidden;
}
.bt-timeline-beam::after {
    content: "";
    position: absolute;
    width: 6px; height: 20px;
    background: linear-gradient(180deg, transparent, var(--bt-gradient-2), transparent);
    border-radius: 3px;
    animation: bt-beamTravel 3s linear infinite;
    left: -2px;
}

/* ── Node Glow ─────────────────────────────────────────────────── */
.bt-timeline-node {
    animation: bt-nodeGlow 3s ease-in-out infinite;
}

/* ── Glassmorphic Transitions ──────────────────────────────────── */
.bt-glass-panel {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.bt-glass-panel:hover {
    box-shadow: 0 8px 32px rgba(108, 92, 231, 0.08);
    border-color: rgba(108, 92, 231, 0.15);
}

/* ── Counter Animation ─────────────────────────────────────────── */
.bt-counter { transition: all 0.05s ease; }

/* ── 3D Tilt Hover ─────────────────────────────────────────────── */
.bt-tilt-card {
    transition: transform 0.15s ease, box-shadow 0.3s ease;
    will-change: transform;
}

/* ── Beam noodles on portfolio ─────────────────────────────────── */
.bt-beam-connector {
    animation: bt-shimmer 3s linear infinite;
    background-size: 200% 100%;
    background-image: linear-gradient(180deg, transparent 30%, var(--bt-gradient-1), var(--bt-gradient-2), transparent 70%);
}

/* ── Reduce motion ─────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .bt-scroll-reveal,
    .bt-reveal-left,
    .bt-reveal-right,
    .bt-reveal-center { opacity: 1; transform: none; transition: none; }
    .bt-page-transition-out,
    .bt-page-transition-in { animation: none; }
    .bt-loading-dots .bt-dot { animation: none; opacity: 1; transform: scale(1); }
}