/* ========================================
   VIHAIR LANDING PAGE - ENHANCEMENTS
   Micro-interactions, Preloader, Navigation
   ======================================== */

/* ----------------------------------------
   ENHANCED CTA BUTTON — More Contrast
   ---------------------------------------- */
.btn--primary {
    box-shadow: 
        var(--shadow-md), 
        0 0 50px var(--accent-dim),
        0 0 80px var(--accent-subtle),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.btn--primary:hover {
    box-shadow: 
        var(--shadow-glow-intense), 
        var(--shadow-lg),
        0 0 100px var(--accent-dim),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transform: translateY(-5px) scale(1.03);
}

.btn--primary:active {
    box-shadow: 
        var(--shadow-glow), 
        var(--shadow-md),
        inset 0 2px 4px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px) scale(1.01);
}

/* Form CTA — Extra Emphasis */
.form__submit.btn--primary {
    box-shadow: 
        var(--shadow-lg), 
        0 0 60px var(--accent-dim),
        0 0 100px var(--accent-subtle),
        0 0 150px var(--accent-micro),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
    animation: cta-glow 2s ease-in-out infinite;
}

@keyframes cta-glow {
    0%, 100% {
        box-shadow: 
            var(--shadow-lg), 
            0 0 60px var(--accent-dim),
            0 0 100px var(--accent-subtle),
            0 0 150px var(--accent-micro),
            inset 0 1px 0 rgba(255, 255, 255, 0.25);
    }
    50% {
        box-shadow: 
            var(--shadow-lg), 
            0 0 80px var(--accent-glow),
            0 0 120px var(--accent-dim),
            0 0 180px var(--accent-subtle),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
}

.form__submit.btn--primary:hover {
    box-shadow: 
        var(--shadow-glow-intense), 
        var(--shadow-lg),
        0 0 120px var(--accent-glow),
        0 0 180px var(--accent-dim),
        inset 0 1px 0 rgba(255, 255, 255, 0.35);
    animation: none;
}

/* ----------------------------------------
   FOOTER LINKS — Privacy & Terms
   ---------------------------------------- */
.footer__links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
}

.footer__link {
    color: var(--text-muted);
    font-size: 0.8125rem;
    transition: color var(--duration-fast) var(--ease-out-expo);
}

.footer__link:hover {
    color: var(--accent-primary);
}

.footer__divider {
    color: var(--text-dim);
    font-size: 0.75rem;
}

/* ----------------------------------------
   CLEANER BACKGROUNDS — Reduce Visual Noise
   ---------------------------------------- */
/* Reduce leaves texture opacity */
.audience__bg {
    opacity: 0.03 !important;
}

/* Reduce hex pattern opacity on mobile */
@media (max-width: 767px) {
    .problems__bg {
        opacity: 0.04 !important;
    }
    
    .audience__bg {
        opacity: 0.02 !important;
    }
}

/* ----------------------------------------
   PRELOADER
   ---------------------------------------- */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-void);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.preloader[hidden] {
    display: none;
}

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

.preloader__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

.preloader__logo {
    width: 140px;
    height: auto;
    animation: preloader-pulse 1.5s ease-in-out infinite;
}

.preloader__text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: var(--ls-wider);
    color: var(--text-white);
    text-transform: uppercase;
}

.preloader__bar {
    width: 200px;
    height: 3px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.preloader__progress {
    height: 100%;
    background: var(--gradient-btn);
    border-radius: var(--radius-full);
    animation: preloader-progress 1.5s ease-out forwards;
}

@keyframes preloader-pulse {
    0%, 100% { 
        transform: scale(1);
        filter: drop-shadow(0 0 20px var(--accent-subtle));
    }
    50% { 
        transform: scale(1.1);
        filter: drop-shadow(0 0 40px var(--accent-dim));
    }
}

@keyframes preloader-progress {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* ----------------------------------------
   RIPPLE EFFECT
   ---------------------------------------- */
.ripple-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
    border-radius: inherit;
    pointer-events: none;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple-effect 0.6s ease-out forwards;
    pointer-events: none;
}

@keyframes ripple-effect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ----------------------------------------
   3D TILT CARDS
   ---------------------------------------- */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: transform 0.3s ease;
}

.tilt-card__inner {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

.tilt-card:hover .tilt-card__inner {
    transform: translateZ(20px);
}

.tilt-card__shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.1) 0%,
        transparent 50%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    border-radius: inherit;
}

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

/* ----------------------------------------
   CTA PULSE ANIMATION
   ---------------------------------------- */
.btn--pulse {
    animation: cta-pulse 2s ease-in-out infinite;
}

.btn--pulse::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    background: var(--gradient-btn);
    opacity: 0;
    z-index: -1;
    animation: cta-pulse-ring 2s ease-in-out infinite;
}

@keyframes cta-pulse {
    0%, 100% {
        box-shadow: var(--shadow-md), 0 0 40px var(--accent-subtle);
    }
    50% {
        box-shadow: var(--shadow-glow), 0 0 60px var(--accent-dim);
    }
}

/* ----------------------------------------
   MOBILE PERFORMANCE REDUCTIONS
   ---------------------------------------- */
@media (max-width: 767px) {
    .btn--pulse,
    .form__submit.btn--primary {
        animation: none;
        box-shadow: var(--shadow-md);
    }

    .btn--primary:hover,
    .btn--secondary:hover,
    .problem-card:hover,
    .audience-card:hover,
    .how-it-works__image:hover img {
        transform: none;
        box-shadow: none;
    }

    .tilt-card,
    .tilt-card__shine,
    .ripple-container,
    .ripple {
        display: none;
    }
    
    /* ----------------------------------------
       MOBILE PERFORMANCE — Disable Heavy Effects
       ---------------------------------------- */
    
    /* Disable backdrop-filter for better performance */
    .problem-card,
    .usage-card,
    .audience-card,
    .lead-form__wrapper {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
    
    /* Simplify backgrounds */
    .problem-card,
    .usage-card,
    .audience-card {
        background: var(--bg-card) !important;
    }
    
    /* Disable glow effects */
    .usage__glow,
    .for-whom__bg,
    .problems__bg,
    .hero__ambient {
        display: none !important;
    }
    
    /* Simplify shadows */
    .problem-card,
    .usage-card,
    .audience-card {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    }
    
    /* Disable pseudo-element decorations */
    .usage::before,
    .usage::after,
    .for-whom::before,
    .for-whom::after,
    .problem-card::before,
    .usage-card::before,
    .audience-card::before {
        display: none !important;
    }
    
    /* Simplify usage card media */
    .usage-card__media::after {
        display: none !important;
    }
    
    /* Disable image zoom on hover */
    .usage-card:hover .usage-card__media img {
        transform: none !important;
    }
    
    /* Simplify badge */
    .usage-card__badge {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background: rgba(0, 229, 255, 0.2) !important;
    }
    
    /* Disable title color change on hover */
    .usage-card:hover .usage-card__title {
        color: var(--text-white) !important;
    }
    
    /* Simplify disclaimer */
    .usage__disclaimer {
        background: transparent !important;
        border: none !important;
        padding: var(--space-2) 0 !important;
    }
}

@keyframes cta-pulse-ring {
    0%, 100% {
        transform: scale(1);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.3;
    }
}

/* ----------------------------------------
   ICON HOVER ANIMATIONS
   ---------------------------------------- */
.icon-animate {
    transition: transform 0.3s var(--ease-out-expo), 
                color 0.3s ease;
}

.icon-animate:hover {
    transform: scale(1.2) rotate(5deg);
    color: var(--accent-primary);
}

.icon-bounce:hover {
    animation: icon-bounce 0.5s ease;
}

@keyframes icon-bounce {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(-8px); }
    50% { transform: translateY(-4px); }
    75% { transform: translateY(-6px); }
}

/* ----------------------------------------
   SECTION DOTS NAVIGATION
   ---------------------------------------- */
.section-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: none;
    flex-direction: column;
    gap: var(--space-4);
}

.section-nav__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-subtle);
    cursor: pointer;
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
}

.section-nav__dot::before {
    content: attr(data-label);
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.section-nav__dot:hover::before {
    opacity: 1;
}

.section-nav__dot:hover {
    background: var(--accent-subtle);
    border-color: var(--accent-primary);
    transform: scale(1.2);
}

.section-nav__dot.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* ----------------------------------------
   PROGRESS INDICATOR
   ---------------------------------------- */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-btn);
    z-index: 1001;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px var(--accent-glow);
}

/* ----------------------------------------
   IMAGE LAZY LOADING WITH BLUR
   ---------------------------------------- */
.lazy-image {
    position: relative;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.lazy-image__placeholder {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: blur(20px);
    transform: scale(1.1);
    transition: opacity 0.5s ease;
}

.lazy-image__img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-image__img.loaded {
    opacity: 1;
}

.lazy-image__img.loaded + .lazy-image__placeholder {
    opacity: 0;
}

/* ----------------------------------------
   SKELETON LOADING
   ---------------------------------------- */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 25%,
        var(--bg-elevated) 50%,
        var(--bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ----------------------------------------
   MAGNETIC BUTTON EFFECT
   ---------------------------------------- */
.btn-magnetic {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}

/* ----------------------------------------
   HOVER GLOW EFFECT
   ---------------------------------------- */
.hover-glow {
    position: relative;
}

.hover-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-btn);
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    filter: blur(15px);
    transition: opacity 0.3s ease;
}

.hover-glow:hover::before {
    opacity: 0.5;
}

/* ----------------------------------------
   TEXT REVEAL ANIMATION
   ---------------------------------------- */
.text-reveal {
    overflow: hidden;
}

.text-reveal__inner {
    transform: translateY(100%);
    animation: text-reveal 0.8s var(--ease-out-expo) forwards;
}

@keyframes text-reveal {
    to { transform: translateY(0); }
}

/* ----------------------------------------
   STAGGER ANIMATION DELAYS
   ---------------------------------------- */
.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; }

/* ----------------------------------------
   RESPONSIVE SECTION NAV
   ---------------------------------------- */
@media (min-width: 1024px) {
    .section-nav {
        display: flex;
    }
}

/* ----------------------------------------
   REDUCED MOTION
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .preloader__logo,
    .preloader__progress,
    .ripple,
    .btn--pulse,
    .btn--pulse::after,
    .icon-bounce,
    .skeleton {
        animation: none;
    }
    
    .tilt-card:hover .tilt-card__inner {
        transform: none;
    }
}