/* ═══════════════════════════════
       HEADER
    ═══════════════════════════════ */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 168, 255, 0.2);
    transition: all 0.3s ease;
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--blue), var(--blue2));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    font-size: 1rem;
    color: white;
    box-shadow: var(--glow);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-name {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--white);
    letter-spacing: 2px;
}

.logo-tagline {
    font-size: 0.6rem;
    color: var(--cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-top: 2px;
}

nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    right: 50%;
    height: 2px;
    background: var(--blue);
    transition: all 0.3s;
    border-radius: 1px;
}

nav a:hover {
    color: var(--cyan);
}

nav a:hover::after {
    left: 1rem;
    right: 1rem;
}

.btn-nav {
    background: linear-gradient(135deg, var(--blue), var(--blue2));
    color: white !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    box-shadow: var(--glow);
    transition: all 0.3s !important;
}

.btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px rgba(0, 168, 255, 0.6) !important;
}

.btn-nav::after {
    display: none !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--blue);
    border-radius: 2px;
    transition: all 0.3s;
}