/* ========================================
   PlanningHUB Neon Glow Utilities
   ======================================== */

/* --- Neon Border Glow --- */
.neon-border-mint {
    border-color: rgba(92, 198, 195, 0.3) !important;
    box-shadow: 0 0 15px -3px var(--ph-mint-glow),
                inset 0 0 15px -8px var(--ph-mint-glow);
}

.neon-border-purple {
    border-color: rgba(139, 111, 168, 0.3) !important;
    box-shadow: 0 0 15px -3px var(--ph-purple-glow),
                inset 0 0 15px -8px var(--ph-purple-glow);
}

/* --- Neon Text Glow --- */
.neon-text-mint {
    color: var(--ph-mint-light);
    text-shadow: 0 0 10px var(--ph-mint-glow),
                 0 0 40px rgba(92, 198, 195, 0.15);
}

.neon-text-purple {
    color: var(--ph-purple-light);
    text-shadow: 0 0 10px var(--ph-purple-glow),
                 0 0 40px rgba(139, 111, 168, 0.15);
}

/* --- Neon Hover Card --- */
.neon-card {
    position: relative;
    background: var(--ph-bg-surface);
    border: 1px solid var(--ph-border);
    border-radius: var(--ph-radius-lg);
    transition: all 0.4s var(--ph-ease);
    overflow: hidden;
}

.neon-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--ph-mint), var(--ph-purple));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.neon-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    box-shadow: 0 0 20px -5px var(--ph-mint-glow),
                inset 0 0 20px -10px var(--ph-mint-glow);
}

.neon-card:hover {
    transform: translateY(-4px);
    border-color: rgba(92, 198, 195, 0.25);
    background: var(--ph-bg-surface-hover);
}

.neon-card:hover::before {
    opacity: 1;
}

.neon-card:hover::after {
    opacity: 1;
}

/* --- Neon Ring (for avatars) --- */
.neon-ring {
    position: relative;
}

.neon-ring::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ph-mint), var(--ph-purple));
    z-index: -1;
    opacity: 0.6;
}

.neon-ring::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ph-mint), var(--ph-purple));
    z-index: -1;
    filter: blur(8px);
    opacity: 0.4;
}

/* --- Neon Input Focus --- */
.neon-input:focus {
    border-color: var(--ph-mint) !important;
    box-shadow: 0 0 0 3px rgba(92, 198, 195, 0.1),
                0 0 15px -5px var(--ph-mint-glow) !important;
}

/* --- Neon Button --- */
.neon-btn {
    position: relative;
    background: linear-gradient(135deg, var(--ph-mint), var(--ph-purple));
    border: none;
    color: #fff;
    transition: all 0.3s ease;
}

.neon-btn:hover {
    box-shadow: 0 0 20px -5px var(--ph-mint-glow),
                0 8px 25px -8px var(--ph-mint-glow);
    transform: translateY(-2px);
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(135deg, var(--ph-mint-light), var(--ph-purple-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Neon Pulse Animation --- */
@keyframes neonPulse {
    0%, 100% {
        box-shadow: 0 0 5px var(--ph-mint-glow);
    }
    50% {
        box-shadow: 0 0 20px var(--ph-mint-glow),
                    0 0 40px rgba(92, 198, 195, 0.1);
    }
}

.neon-pulse {
    animation: neonPulse 3s ease-in-out infinite;
}

/* ========================================
   Glass Card
   ======================================== */
.glass-card {
    position: relative;
    background: var(--ph-glass-bg);
    border: 1px solid var(--ph-glass-border);
    border-radius: var(--ph-radius-lg);
    backdrop-filter: var(--ph-glass-blur);
    -webkit-backdrop-filter: var(--ph-glass-blur);
    box-shadow: var(--ph-shadow-glass);
    transition: all 0.5s var(--ph-ease);
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(92, 198, 195, 0.3), transparent 40%, transparent 60%, rgba(139, 111, 168, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.glass-card:hover {
    background: var(--ph-glass-bg-hover);
    box-shadow: var(--ph-shadow-glass-hover);
    transform: translateY(-8px) scale(1.02);
}

.glass-card:hover::before {
    opacity: 1;
    animation: shimmerBorder 3s linear infinite;
}

@keyframes shimmerBorder {
    0% {
        background: linear-gradient(135deg, rgba(92, 198, 195, 0.4), transparent 40%, transparent 60%, rgba(139, 111, 168, 0.4));
    }
    50% {
        background: linear-gradient(135deg, rgba(139, 111, 168, 0.4), transparent 40%, transparent 60%, rgba(92, 198, 195, 0.4));
    }
    100% {
        background: linear-gradient(135deg, rgba(92, 198, 195, 0.4), transparent 40%, transparent 60%, rgba(139, 111, 168, 0.4));
    }
}

/* ========================================
   Shimmer Text
   ======================================== */
.shimmer-text {
    background: linear-gradient(
        90deg,
        var(--ph-mint-light) 0%,
        var(--ph-purple-light) 33%,
        #ffffff 50%,
        var(--ph-mint-light) 66%,
        var(--ph-purple-light) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmerText 4s linear infinite;
}

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

/* ========================================
   Scroll Reveal
   ======================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ph-ease), transform 0.7s var(--ph-ease);
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Reading Progress Bar
   ======================================== */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--ph-mint), var(--ph-purple));
    box-shadow: 0 0 10px var(--ph-mint-glow), 0 0 5px var(--ph-purple-glow);
    z-index: 9999;
    transition: width 0.1s linear;
    pointer-events: none;
}