/* ── NAV ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6%;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 20px rgba(59, 91, 219, 0.06);
}

.logo {
    font-size: 20px;
    font-weight: 700;
    text-decoration: none;
    color: var(--ink);
    letter-spacing: -0.5px;
    transition: color 0.3s;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink-mid);
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--blue);
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    border-radius: 100px;
    transition: all 0.2s;
    font-size: 14px;
    padding: 10px 22px;
}

.btn-ghost-dark {
    background: transparent;
    color: var(--ink);
    border: 1.5px solid var(--border-mid);
    font-size: 13px;
    padding: 9px 20px;
}

.btn-ghost-dark:hover {
    background: var(--bg-soft);
    border-color: var(--ink);
}

.btn-primary {
    background: var(--blue);
    color: var(--bg);
    font-size: 13px;
    padding: 9px 20px;
}

.btn-primary:hover {
    background: var(--blue-dark);
}


.btn-white-outline {
    background: #ffffff;
    color: #333333;
    border: 1.5px solid rgba(0, 0, 0, 0.12);
}

.btn-white-outline:hover {
    background: #f5f7ff;
    border-color: var(--blue);
    color: var(--blue);
}

.btn-outline-dark {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--border-mid);
}

.btn-outline-dark:hover {
    background: var(--bg-soft);
    border-color: var(--blue);
    color: var(--blue);
}

.btn-lg {
    padding: 13px 28px;
    font-size: 15px;
}

.btn-cta {
    background: var(--bg);
    color: var(--blue);
    padding: 14px 32px;
    font-size: 15px;
    border-radius: 100px;
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
}