:root {
    --bg-dark: #0a0a0c;
    --bg-darker: #050506;
    --text-main: #f0f0f0;
    --text-muted: #a0a0a5;
    --primary-accent: #00ffcc;

    --primary-accent-glow: rgba(0, 255, 204, 0.4);
    --secondary-accent: #7000ff;

    --card-bg: #121217;
    --card-border: rgba(255, 255, 255, 0.05);

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}


html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6,
.navbar-brand {
    font-family: var(--font-heading);
}

.text-primary-accent {
    color: var(--primary-accent) !important;
}

.bg-primary-accent {
    background-color: var(--primary-accent) !important;
}

.bg-primary-dark {
    background-color: rgba(0, 255, 204, 0.1) !important;
}

.section-dark {
    background-color: var(--bg-dark);
}

.section-darker {
    background-color: var(--bg-darker);
}

.text-gradient {
    background: linear-gradient(90deg, var(--primary-accent) 0%, var(--secondary-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.border-secondary {
    border-color: var(--card-border) !important;
}


.navbar {
    background-color: rgba(5, 5, 6, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-main) !important;
    opacity: 0.8;
    transition: opacity 0.3s ease, color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    opacity: 1;
    color: var(--primary-accent) !important;
}


.btn-primary-accent {
    background-color: var(--primary-accent);
    color: #000;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary-accent:hover {
    background-color: #00e6b8;
    color: #000;
    transform: translateY(-2px);
}

.shadow-glow {
    box-shadow: 0 0 20px var(--primary-accent-glow);
}

.btn-primary-accent:hover.shadow-glow {
    box-shadow: 0 0 30px var(--primary-accent-glow);
}


.hero {
    min-height: 100vh;
    padding-top: 100px;
    background: radial-gradient(circle at 80% 20%, rgba(112, 0, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(0, 255, 204, 0.1) 0%, transparent 40%);
}

.hero-image-wrapper {
    position: relative;
    border-radius: 1rem;
    padding: 10px;
    background: linear-gradient(45deg, var(--primary-accent), var(--secondary-accent));
    z-index: 1;
}

.hero-img {
    position: relative;
    z-index: 2;
}

.glow-backdrop {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--primary-accent-glow) 0%, transparent 60%);
    z-index: 0;
    filter: blur(40px);
}


.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: rgba(0, 255, 204, 0.3);
}


.icon-box {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}


.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--card-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding: 0 40px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-icon {
    position: absolute;
    top: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: 0 0 15px var(--primary-accent-glow);
}

.timeline-item:nth-child(odd) .timeline-icon {
    right: -20px;
}

.timeline-item:nth-child(even) .timeline-icon {
    left: -20px;
}

.timeline-content {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    transition: border-color 0.3s ease;
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary-accent);
}

.border-primary-accent {
    border-color: rgba(0, 255, 204, 0.5) !important;
}


.section-cta {
    background: linear-gradient(135deg, var(--bg-darker) 0%, #1a1a24 100%);
    position: relative;
}

.cta-box {
    background: rgba(18, 18, 23, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 1px solid rgba(0, 255, 204, 0.3);
}

.max-w-md {
    max-width: 600px;
}


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


.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}


.animate-on-scroll {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.animate-on-scroll.slide-up {
    transform: translateY(50px);
}

.animate-on-scroll.slide-left {
    transform: translateX(50px);
}

.animate-on-scroll.slide-right {
    transform: translateX(-50px);
}

.animate-on-scroll.fade-in {
    transform: scale(0.95);
}

.animate-on-scroll.zoom-in {
    transform: scale(0.8);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translate(0) scale(1);
}


@media (max-width: 991px) {
    .hero {
        text-align: center;
        padding-top: 120px;
    }

    .hero .d-flex.gap-3 {
        justify-content: center;
    }

    .timeline::before {
        left: 40px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 90px;
        padding-right: 0;
        text-align: left !important;
    }

    .timeline-item:nth-child(odd) {
        left: 0;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-icon,
    .timeline-item:nth-child(even) .timeline-icon {
        left: 20px;
        right: auto;
    }
}