/* Reset and basic styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

/* Header with logo */
header {
    background: #0a5;
    color: #fff;
    padding: 20px 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.header-container img.logo {
    height: 70px;
    width: auto;
    border-radius: 8px;
    border: 2px solid #fff;
}

.header-text h1 {
    font-size: 2em;
}

.header-text p {
    font-size: 1em;
    margin-top: 5px;
}

/* Navigation Menu */
:root{
    --accent: #0a5;
    --accent-dark: #083;
    --nav-bg: rgba(255,255,255,0.6);
    --nav-text: #083;
}

.navbar{
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(6px);
    background: linear-gradient(180deg, rgba(255,255,255,0.55), rgba(255,255,255,0.45));
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

.nav-container{
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 20px;
}

.brand{
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--nav-text);
}

.nav-logo{height: 40px; width: auto; border-radius: 6px; border: 1px solid rgba(0,0,0,0.06);}

.brand-text{font-weight: 700; font-size: 1.1rem;}

.nav-links{
    display: flex;
    align-items: center;
    gap: 18px;
}

.nav-links a{
    color: var(--nav-text);
    text-decoration: none;
    font-weight: 600;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.22s, color 0.22s, transform 0.15s;
}

.nav-links a:hover{background: rgba(10,85,85,0.06); transform: translateY(-2px);}

.nav-links a.active{
    background: var(--accent);
    color: #fff;
    box-shadow: 0 6px 14px rgba(10,85,85,0.12);
}

.btn.primary{
    background: var(--accent);
    color: #fff;
    padding: 8px 14px;
    border-radius: 8px;
    text-decoration: none;
}

.nav-toggle{
    display: none;
    background: none;
    border: 0;
    padding: 8px;
    cursor: pointer;
}

.hamburger{
    width: 22px;
    height: 2px;
    background: var(--nav-text);
    display: block;
    position: relative;
    transition: all 0.25s ease;
}

.hamburger::before,
.hamburger::after{
    content: '';
    position: absolute;
    left: 0;
    width: 22px;
    height: 2px;
    background: var(--nav-text);
    transition: all 0.25s ease;
}

.hamburger::before{top: -6px;}
.hamburger::after{top: 6px;}

.nav-toggle[aria-expanded="true"] .hamburger{background: transparent;}
.nav-toggle[aria-expanded="true"] .hamburger::before{transform: rotate(45deg) translate(5px,5px);} 
.nav-toggle[aria-expanded="true"] .hamburger::after{transform: rotate(-45deg) translate(5px,-5px);} 

/* Mobile */
@media (max-width: 768px){
    .nav-toggle{display: block;}
    .nav-links{
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        margin: 0;
        flex-direction: column;
        gap: 0;
        background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.96));
        overflow: hidden;
        max-height: 0;
        transition: max-height 0.28s ease;
        box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    }
    .nav-links.open{max-height: 400px; padding: 12px 20px;}
    .nav-links a{padding: 12px 8px; border-radius: 6px;}
    .brand-text{display: none;}
    .nav-logo{height: 36px;}
}

/* Footer */
footer {
    background: #ff0000;
    color: #fff;
    text-align: center;
    padding: 15px 0;
    margin-top: 40px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        text-align: center;
    }

    nav a {
        margin: 0 10px;
    }
}