:root {
    --primary: #4a7c59; /* Forest Green */
    --accent: #f8c630;
    --dark-bg: #0a0c10;
    --text: #ffffff;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text);
    overflow-x: hidden;
}

/* Video Background Container */
.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.video-background video {
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
    filter: brightness(30%) grayscale(20%); /* Dims video for text readability */
}

/* Floating Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
}

.logo { font-weight: 800; font-size: 1.4rem; color: #fff; text-decoration: none; }
.logo span { color: var(--primary); }

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 900;
    background: linear-gradient(to bottom, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Sleek Tracking Input */
.track-container {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px;
    border-radius: 50px;
    display: flex;
    width: 100%;
    max-width: 600px;
    backdrop-filter: blur(20px);
    margin-top: 30px;
}

.track-container input {
    background: transparent;
    border: none;
    padding: 15px 25px;
    color: white;
    flex: 1;
    font-size: 1rem;
    outline: none;
}

.btn-track {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 40px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

.btn-track:hover {
    background: #5c9e6f;
    box-shadow: 0 0 20px rgba(74, 124, 89, 0.5);
}