header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-dark);
    padding: 18px 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, #0284c7, #38bdf8);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 16px;
    box-shadow: 0 0 15px rgba(2, 132, 199, 0.4);
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: #ffffff;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

nav a {
    color: #94a3b8;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
}

nav a:hover {
    color: #38bdf8;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -6px;
    left: 0;
    background: #38bdf8;
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

.header-cta {
    padding: 10px 22px;
    background: #38bdf8;
    border-radius: 30px;
    color: #0f172a;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.header-cta:hover {
    background: #7dd3fc;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
}

footer {
    background: #0b0f19;
    border-top: 1px solid var(--border-dark);
    padding: 80px 8% 30px;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    max-width: 1200px;
    margin: 0 auto 60px;
}

.footer-brand p {
    color: #64748b;
    font-size: 14px;
    margin-top: 15px;
    max-width: 320px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 12px;
}

.footer-col a {
    color: #64748b;
    font-size: 14px;
}

.footer-col a:hover {
    color: #38bdf8;
}

.newsletter-box input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    color: #fff;
    font-size: 14px;
    margin-bottom: 10px;
    outline: none;
}

.newsletter-box button {
    width: 100%;
    padding: 12px;
    background: #0284c7;
    border: none;
    border-radius: 6px;
    color: #ffffff;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

.newsletter-box button:hover {
    background: #0369a1;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #475569;
    font-size: 13px;
}