/* --- Root Styles & Variables --- */
:root {
    --bg-white: #ffffff;
    --gold: #d4af37;
    --cream: #fef4c0;
    --dark-grey: #4a4d50;
    --text-black: #1a1a1a;
    --shadow: 4px 4px 0px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    /* Sun-burst radial background */
    background: radial-gradient(circle at 50% 42%, #ffffff 0%, #fff9e6 45%, #fcf4db 100%);
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* --- Global Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 60px;
    background: rgba(255, 255, 255, 0.98);
    z-index: 100;
    border-bottom: 1px solid #f2f2f2;
}

.nav-container {
    display: flex;
    justify-content: space-between; /* Keeps logo left, button right */
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-svg {
    height: 60px; /* High-resolution scale */
    width: auto;
    display: block;
}

/* --- Flight Canvas & Atmospheric Masking --- */
#canvas-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.9;
    mask-image: linear-gradient(to bottom, transparent 0%, black 30%, black 85%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 30%, black 85%, transparent 100%);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    z-index: 10;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    pointer-events: none;
}

.hero-box {
    background: var(--dark-grey);
    padding: 20px 45px;
    color: white;
    margin-bottom: 12px;
    pointer-events: auto;
}

.hero-box h1 {
    font-size: 52px;
    font-weight: 500;
}

.subtitle-box {
    background: #3a3d40;
    color: white;
    padding: 8px 18px;
    font-size: 14px;
    margin-bottom: 35px;
    pointer-events: auto;
}

/* --- Signature Buttons --- */
.btn-cream {
    background: var(--cream);
    border: 1px solid #e8dfac;
    padding: 12px 28px;
    border-radius: 4px;
    box-shadow: var(--shadow);
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.1s ease;
    pointer-events: auto;
}

.btn-cream:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px rgba(0,0,0,0.1);
}

/* --- Registration Modal --- */
.modal {
    display: none;
    position: fixed;
    z-index: 200;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background: rgba(255, 255, 255, 0.98);
}

.modal-content {
    background: white;
    margin: 10% auto;
    padding: 50px;
    width: 90%;
    max-width: 420px;
    border: 1px solid #eee;
    text-align: center;
    position: relative;
    box-shadow: 0 40px 100px rgba(0,0,0,0.05);
}

.modal-content input {
    width: 100%;
    padding: 14px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #fafafa;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: var(--dark-grey);
    color: white;
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
}

.close {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 30px;
    color: #ccc;
    cursor: pointer;
}

/* --- Mobile Styling --- */
@media (max-width: 768px) {
    .navbar { padding: 15px 25px; }
    .logo-svg { height: 45px; }
    .hero-box h1 { font-size: 30px; }
    .hero-box { padding: 15px 30px; }
}