/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', sans-serif;
    background: #fefefe;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.page-content { flex: 1 0 auto; }

/* ========== FIXED HEADER ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.18);
    z-index: 1000;
    padding: 0.6rem 1rem;
}
.header-container {
    max-width: 1500px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-container a { text-decoration: none; }
.logo-link {
    display: flex;
    align-items: center;
    gap: 5px;
    text-decoration: none;
    margin-left: 0;
}
.logo-img { height: 35px; }
.logo-text {
    font-weight: 800;
    font-size: 1.4rem;
    background: rgb(0, 0, 109);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.sign { height: 40px; width: 100px; vertical-align: middle; }

.desktop-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
}
.desktop-nav a {
    text-decoration: none;
    font-weight: 600;
    color: #1e2a47;
    padding-bottom: 4px;
    position: relative;
    transition: color 0.3s ease;
}
.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #1e38a8;
    transition: width 0.3s ease-in-out;
}
.desktop-nav a:hover::after { width: 100%; }
.desktop-nav a:hover { color: #1e38a8; }

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 24px;
    flex-direction: column;
    justify-content: space-between;
}
.hamburger-line {
    height: 3px;
    width: 100%;
    background: rgb(0, 0, 109);
    border-radius: 3px;
}

/* ========== MOBILE DRAWER ========== */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    max-width: 80%;
    height: 100%;
    background: white;
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    transition: right 0.3s ease;
    padding: 1.5rem;
    overflow-y: auto;
}
.mobile-drawer.open { right: 0; }
.drawer-header { text-align: right; }
.close-drawer {
    font-size: 2.2rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #0066cc;
}
.drawer-nav { list-style: none; margin-top: 2rem; }
.drawer-nav li { margin-bottom: 1.5rem; }
.drawer-nav a {
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    color: rgb(0, 0, 109);
    display: block;
    padding: 0.5rem 0;
}
.drawer-nav a:hover { color: #0066cc; }
.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
    z-index: 1500;
}
.drawer-overlay.active { opacity: 1; visibility: visible; }

/* ========== PAGE CONTENT SPACING ========== */
.page-content {
    margin-top: 90px;
    padding: 2rem 5%;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991px) {
    .desktop-nav { display: none; }
    .mobile-menu-btn { display: flex; }
    .page-content { margin-top: 75px; }
    .site-header { padding: 0.4rem 2rem; box-shadow: 0 2px 20px rgba(0, 0, 0, 0.18); }
    .logo-link { margin-left: 0; }
    .logo-img { height: 35px; }
    .logo-text { font-size: 1.4rem; }
}
@media (min-width: 1025px) and (max-width: 1440px) {
    .header-container { padding: 0 5%; }
}