@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;700;800&display=swap');

:root {
    --bg: #f8fafc;
    --accent: #0033ff;
    --text: #0f172a;
    --text-dim: #64748b;
    --border: rgba(15, 23, 42, 0.08);
}

body, html {
    margin: 0;
    padding: 0;
    color: var(--text) !important;
    font-family: 'JetBrains Mono', monospace !important;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ATMOSPHERIC LIFT ANIMATION */
.sky-visual {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: linear-gradient(to bottom, rgba(0, 51, 255, 0.03) 0%, transparent 40%);
}

.vapor-trail {
    position: absolute;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    height: 1px;
    width: 300px;
    opacity: 0.2;
    animation: moveVapor 4s infinite linear;
}

@keyframes moveVapor {
    0%   { left: -400px; opacity: 0; }
    20%  { opacity: 0.3; }
    80%  { opacity: 0.3; }
    100% { left: 110%;   opacity: 0; }
}

/* NAVIGATION */
.ozavia-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 6%;
    border-bottom: 1px solid var(--border);
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text) !important;
}

.logo span {
    color: var(--accent);
}

.nav-cta {
    text-decoration: none;
    color: var(--text);
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 10px 25px;
    border: 1px solid var(--text);
    transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    letter-spacing: 1px;
}

.nav-cta:hover {
    background: var(--accent);
    color: #ffffff !important;
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(0, 51, 255, 0.2);
}

/* HERO */
.hero {
    padding: 80px 6% 70px 6%;
    max-width: 1100px;
    position: relative;
    z-index: 1;
}

.tag {
    font-size: 0.65rem;
    color: #fff;
    background: var(--text);
    padding: 4px 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 25px;
    display: inline-block;
    font-weight: 700;
}

h1 {
    font-size: clamp(2.8rem, 9vw, 5.5rem) !important;
    font-weight: 400 !important;
    margin: 0 !important;
    letter-spacing: -3px !important;
    line-height: 1.05 !important;
    text-transform: uppercase !important;
    color: var(--text) !important;
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: var(--text) !important;
}

.hero-desc {
    margin-top: 40px;
    max-width: 540px;
    color: var(--text-dim);
    font-size: 1.1rem;
    border-left: 2px solid var(--accent);
    padding-left: 30px;
}

/* INFRASTRUCTURE GRID */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1px;
    background: var(--border);
    margin: 40px 6% 60px 6%;
    border: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.node {
    background: #ffffff;
    padding: 30px 35px;
    transition: background 0.4s;
    position: relative;
    overflow: hidden;
}

.node:hover {
    background: #fafbfc;
}

.node::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: 0.4s;
    transform-origin: left;
}

.node:hover::after {
    transform: scaleX(1);
}

.id-num {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 25px;
    display: block;
}

h3 {
    font-size: 1.2rem !important;
    font-weight: 700 !important;
    margin-bottom: 15px !important;
    text-transform: uppercase !important;
    letter-spacing: 1px !important;
    color: var(--text) !important;
}

p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin: 0;
}

/* FOOTER / SHARED LAYOUT OVERRIDES */
footer, .footer, .site-footer {
    border-top: 1px solid var(--border) !important;
    background: transparent !important;
    color: var(--text-dim) !important;
}

footer a, .footer a, .site-footer a {
    color: var(--text-dim) !important;
}

/* SHARED NAV OVERRIDE */
nav:not(.ozavia-nav), .navbar, header {
    display: none !important;
}

.ozavia-nav, main, footer, .site-footer {
    position: relative;
    z-index: 1;
}

/* ── Signal Line ─────────────────────────────────── */
.signal-line {
    padding: 0px 8% 120px;
    text-align: center;
    position: relative;
    z-index: 5;
    /* background: var(--bg); */
    /* border-top: 1px solid var(--border); */
}
.signal-inner { max-width: 600px; margin: 0 auto; }
.signal-status {
    font-size: 0.7rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 900;
    opacity: 0.9;
    margin-bottom: 30px;
}
.signal-cta {
    display: inline-block;
    text-decoration: none;
    color: var(--text);
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.75rem;
    padding: 14px 32px;
    border: 1px solid var(--text);
    font-family: 'JetBrains Mono', monospace;
    transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.signal-cta:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(0, 51, 255, 0.2);
}
.signal-sub {
    margin-top: 20px;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
}