:root {
    --accent: #00f2ff;
    --bg-dark: #0a0a0a;
    --glass: #ffffff08;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.special-text{
    color : #00f2ff;
}

/* Typography Strategy */
body,p,small,span,label,li {
    font-family: Poppins, sans-serif;
}

h1,h2,h3,h4,h5,.syne-font {
    font-family: Syne, sans-serif;
    text-transform: uppercase;
    letter-spacing: -1px;
}

body {
    background-color: var(--bg-dark);
    color: #fff;
    line-height: 1.6;
}

/* Navigation */

.navbar {
    background: #000000d9;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #ffffff14;
    padding: 15px 0;
}

.navbar-brand {
    font-size: 1.8rem;
}

.nav-link {
    font-weight: 500;
    font-size: 0.9rem;
    margin-left: 25px;
    transition: 0.3s;
    color: white;
}

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

/* Hero Video Section */

#bg-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
    filter: grayscale(40%);
}

.video-overlay {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, #000000e6 20%, #0006 100%);
    z-index: 1;
}

.hero-content {
    z-index: 2;
    padding-top: 80px;
}

.hero-title {
    font-size: 65px;
    line-height: 1.05;
    margin-bottom: 30px;
}

.hero-subtitle {
    max-width: 600px;
    font-weight: 300;
}

/* Formula Section */

.formula-card {
    background: #fff;
    color: #000;
    padding: 50px;
    border-radius: 4px;
    border-bottom: 8px solid var(--accent);
}

/* Challenge Cards */

.challenge-card {
    background: #ffffff05;
    border: 1px solid #ffffff1a;
    padding: 35px;
    height: 100%;
    transition: var(--transition);
}

.challenge-card:hover {
    background: var(--accent);
    color: #000;
    transform: translateY(-8px);
}

.challenge-card:hover p,
.challenge-card:hover .solution-tag {
    color: #000 !important;
}

.challenge-card i {
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 25px;
    transition: 0.3s;
}

.challenge-card:hover i {
    color: #000;
}

.solution-tag {
    font-size: 0.65rem;
    letter-spacing: 1px;
    border: 1px solid currentcolor;
    padding: 2px 10px;
    border-radius: 2px;
    font-weight: 600;
}

/* UI Elements */

.btn-accent {
    background: var(--accent);
    color: #000;
    font-weight: 700;
    border-radius: 4px;
    padding: 18px 40px;
    border: none;
    font-size: 0.9rem;
}

.btn-outline-white {
    border: 2px solid #fff;
    color: #fff;
    border-radius: 4px;
    padding: 18px 40px;
    font-weight: 700;
    font-size: 0.9rem;
}

.stat-num {
    font-family: Syne, sans-serif;
    font-size: 2.8rem;
    font-weight: 600;
    color: var(--accent);
    line-height: 1;
}

/* Portfolio Items */

.portfolio-group h4 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: var(--accent);
}

.product-item {
    padding: 15px 0;
    border-bottom: 1px solid #ffffff14;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer {
    background: #000;
    padding: 100px 0 40px;
}