/* ============================================
   ANALEMMA AI - Animations
   ============================================ */

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* ===== STAGGER DELAYS ===== */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ===== AMBIENT BACKGROUND ===== */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-background);
}

.ambient-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
    animation: ambientPulse 8s ease-in-out infinite;
}

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

/* ===== PARTICLES ===== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: var(--z-background);
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 20s infinite ease-in-out;
    box-shadow: 0 0 10px var(--accent-primary);
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 3s; }
.particle:nth-child(3) { left: 35%; animation-delay: 6s; }
.particle:nth-child(4) { left: 50%; animation-delay: 9s; }
.particle:nth-child(5) { left: 65%; animation-delay: 12s; }
.particle:nth-child(6) { left: 80%; animation-delay: 15s; }
.particle:nth-child(7) { left: 90%; animation-delay: 18s; }

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

/* ===== GLOW EFFECTS ===== */
.glow-pulse {
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px var(--glow-primary), 0 0 40px var(--glow-secondary);
    }
    50% {
        box-shadow: 0 0 30px var(--glow-primary), 0 0 60px var(--glow-secondary);
    }
}

/* ===== HERO VIDEO OVERLAY ===== */
.video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        var(--bg-primary) 0%,
        rgba(10, 10, 10, 0.6) 30%,
        rgba(10, 10, 10, 0.6) 70%,
        var(--bg-primary) 100%
    );
    pointer-events: none;
    z-index: 1;
}

/* ===== FLOATING ANIMATION ===== */
.float {
    animation: float 6s ease-in-out infinite;
}

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

/* ===== SHIMMER EFFECT ===== */
.shimmer {
    position: relative;
    overflow: hidden;
}

.shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* ===== BORDER GLOW ===== */
.border-glow {
    position: relative;
}

.border-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
    filter: blur(8px);
}

.border-glow:hover::before {
    opacity: 1;
}

/* ===== ROTATING GRADIENT BORDER ===== */
.rotating-border {
    position: relative;
    overflow: hidden;
}

.rotating-border::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        transparent,
        var(--accent-primary),
        transparent 120deg
    );
    animation: rotateBorder 4s linear infinite;
}

.rotating-border::after {
    content: '';
    position: absolute;
    inset: 3px;
    background: var(--bg-secondary);
    border-radius: inherit;
}

@keyframes rotateBorder {
    100% { transform: rotate(360deg); }
}

/* ===== TYPEWRITER EFFECT ===== */
.typewriter {
    overflow: hidden;
    border-right: 3px solid var(--accent-primary);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-primary); }
}

/* ===== COUNTER ANIMATION ===== */
.count-up {
    display: inline-block;
}

/* ===== HERO GRADIENT ANIMATION ===== */
.hero-gradient-bg {
    background: 
        radial-gradient(ellipse 100% 60% at 50% 0%, rgba(37, 99, 235, 0.15), transparent 70%),
        radial-gradient(circle at 30% 40%, rgba(6, 182, 212, 0.1), transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(37, 99, 235, 0.08), transparent 40%);
    animation: heroGradient 10s ease-in-out infinite;
}

@keyframes heroGradient {
    0%, 100% {
        background-position: 50% 0%, 30% 40%, 70% 60%;
    }
    50% {
        background-position: 50% 10%, 35% 45%, 65% 55%;
    }
}

/* ===== DIVIDER ANIMATIONS ===== */
.animated-divider {
    position: relative;
    height: 100px;
    overflow: hidden;
}

.divider-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--accent-primary) 20%, 
        var(--accent-secondary) 50%, 
        var(--accent-primary) 80%, 
        transparent 100%);
    transform: translateY(-50%);
}

.divider-orb {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent-primary), 0 0 40px var(--accent-primary);
    animation: orbTravel 5s ease-in-out infinite;
}

.divider-orb:nth-child(2) {
    animation-delay: -2.5s;
    background: var(--accent-tertiary);
    box-shadow: 0 0 20px var(--accent-tertiary), 0 0 40px var(--accent-tertiary);
}

@keyframes orbTravel {
    0% { left: 5%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 95%; opacity: 0; }
}

.divider-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
    opacity: 0.15;
    animation: dividerPulse 3s ease-in-out infinite;
}

@keyframes dividerPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.15; }
    50% { transform: translate(-50%, -50%) scale(1.5); opacity: 0.25; }
}

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