:root {
    --color-brand: #3b82f6;      /* Electric Blue */
    --color-brand-dark: #1d4ed8; /* Darker Indigo/Blue */
    --color-brand-glow: rgba(59, 130, 246, 0.35);
    --color-accent: #06b6d4;     /* Neon Cyan */
    --color-accent-glow: rgba(6, 182, 212, 0.35);
}

/* Custom Premium Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0f172a;
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
    border: 1px solid var(--color-brand-glow);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-brand);
}

/* Glassmorphism Classes */
.glass-panel {
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.04);
}
.glass-panel-hover {
    transition: border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.glass-panel-hover:hover {
    border-color: rgba(6, 182, 212, 0.25);
    box-shadow: 0 15px 35px -10px var(--color-brand-glow), 0 0 15px -5px var(--color-accent-glow);
    transform: translateY(-6px);
}

/* Glow Accents */
.glow-accent {
    filter: drop-shadow(0 0 12px var(--color-brand-glow)) drop-shadow(0 0 4px var(--color-accent-glow));
}

/* Hero gradient backgrounds */
.radial-glow {
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.06) 0%, rgba(6, 182, 212, 0.04) 40%, rgba(0,0,0,0) 70%);
}

/* Animated typing mock */
.typing-cursor::after {
    content: '|';
    animation: cursorBlink 1s step-end infinite;
}
@keyframes cursorBlink {
    from, to { color: transparent }
    50% { color: var(--color-brand) }
}

/* Speed audit ring stroke animation styling */
.audit-ring {
    transition: stroke-dashoffset 1s ease-in-out;
}

/* Preloader Screen Styling */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #070b15;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}
.loader-glow-circle {
    position: relative;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    display: flex;
    align-items: center;
    justify-content: center;
}
.loader-spinner {
    box-sizing: border-box;
    width: 100px;
    height: 100px;
    border: 3px solid transparent;
    border-top-color: var(--color-brand);
    border-bottom-color: var(--color-accent);
    border-radius: 50%;
    animation: loader-spin 1.2s cubic-bezier(0.5, 0.2, 0.3, 0.8) infinite;
}
@keyframes loader-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.loader-logo {
    position: absolute;
    font-size: 18px;
    font-weight: 950;
    color: #fff;
    letter-spacing: 3px;
    text-shadow: 0 0 10px var(--color-brand-glow);
    font-family: 'Outfit', sans-serif;
}
.loader-text {
    margin-top: 28px;
    font-family: 'Outfit', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: #64748b;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
    min-height: 20px;
}
.loader-bar-bg {
    width: 240px;
    height: 2px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 2px;
    margin-top: 16px;
    overflow: hidden;
}
.loader-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-brand), var(--color-accent));
    transition: width 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 3D Tilt Transitions */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: transform 0.15s ease-out, box-shadow 0.3s ease;
}

/* Scroll Reveal Classes */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}
.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}