*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* header  {
    width: 100%;
    height: 70px;
    background: linear-gradient(90deg, #DAEAF8 0%, #C0D9F0 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 5px 20px;
} */

header {
    width: 100%;
    height: 70px;
    background: linear-gradient(90deg, #DAEAF8 0%, #C0D9F0 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 5px 20px;
    display: flex;
    /* align-items: center; */
    justify-content: space-between;
}


.header_1 {
    display: flex; 
    justify-content: space-between;
    width: 100%;
}
.nav {
    display: flex;
}

#logo {
    height: 60px;
    transition: opacity 0.2s;
    float: left
}

.logo-link {
    display: flex;
    align-items: center;
}

#logo:hover {
  opacity: 0.8;
}


button {
    width: auto;
    height: auto;
    border-radius: 10px;
    padding: 5px 30px;
    margin: 10px;
    background: linear-gradient(135deg, #4A90E2, #2C6BBD);
    box-shadow: 0 8px 24px rgba(50, 100, 150, 0.15);
    color: white;
    border: none;
}


a {
    text-decoration: none;
    color: white;
}



#header_2{
    width: 100%;
    height: 600px;
    top: 0;
    display: flex;
    
    background: linear-gradient(90deg, #DAEAF8 0%, #C0D9F0 100%);
    
}

.hero{
    margin-left: auto;
    margin-right: auto;

    margin-bottom: 15;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.hero-container{
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-items: auto;
    gap: 50px;
    
}

.hero-text {
    flex: 1;
    max-width: 590px;
}
.hero-title{
    font-family: "Ubuntu Sans", sans-serif;
    font-optical-sizing: auto;
    font-weight: 850;
    font-style: normal;
    font-variation-settings: "wdth" 100;
}

.hero-description {
    font-family: "Ubuntu Sans", sans-serif;
    font-optical-sizing: auto;
    font-weight: 300;
    font-style: normal;
    font-variation-settings: "wdth" 100;
    font-size: 25px;
}

.hero-image {
    height: auto;
    width: auto;
    flex: 1;
    display: flex;
    justify-content: center; 
    min-width: 0;
}

.hero-img {
    max-width: 100%;
    height: auto;
    width: 100%;
    object-fit: contain;
    max-width: 500px;
}


main{
    /* width: 1300px; */
    width: 1000px;
    max-width: 100%;
    height: 100%;
    background: #FFFFFF;
    box-shadow: 0 8px 24px rgba(50, 100, 150, 0.15);
    border-radius:40px;
    /* margin-left: auto;
    margin-right: auto;
    margin-top: 150px; */
    margin: 150px 0 0 0;
    transition: all 0.3s ease;
}

.main-wrapper {
    display: flex;
    justify-content: center;
    gap: 30px;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

body{
    background: linear-gradient(145deg, #E8F0FE 0%, #D4E4FC 100%);
    background-position: center;
    background-attachment: fixed;
    height: auto;
    /* height: 18000px; */
    /* min-height: 100px; */
    position: relative;
    margin: 0;
}

@media (max-width: 1040px) {
    main{
        width: auto;
        margin-left: 20px;
        margin-right: 20px;
    }
}

@media (max-width: 1400px) {
    .sidebar-nav {
        display: none;
    }
    
    .main-wrapper {
        justify-content: center;
    }
    
    main {
        margin-left: auto;
        margin-right: auto;
    }
}


.sidebar-nav {
    width: 280px;
    flex-shrink: 0;
    margin-top: 150px;
    position: sticky;
    top: 90px;
    align-self: flex-start;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-radius: 20px;
    padding: 20px 16px;
    box-shadow: 0 8px 24px rgba(50, 100, 150, 0.12);
    border: 1px solid rgba(74, 144, 226, 0.2);
    transition: all 0.3s ease;
    z-index: 90;
}

.sidebar-nav-inner h4 {
    font-family: "Ubuntu Sans", sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    color: #1A2B3C;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid #4A90E2;
    text-align: center;
}

.sidebar-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}


.sidebar-nav-list li {
    margin-bottom: 8px;
}



.sidebar-link {
    display: block;
    font-family: "Ubuntu Sans", sans-serif;
    font-size: 0.85rem;
    color: #2C4056;
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 8px;
    transition: all 0.2s ease;
}


.sidebar-link:hover {
    background: linear-gradient(135deg, #4A90E2, #2C6BBD);
    color: white;
    transform: translateX(4px);
}



.sidebar-link.active {
    background: linear-gradient(135deg, #4A90E2, #2C6BBD);
    color: white;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: #E8F0FE;
    border-radius: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: #4A90E2;
    border-radius: 4px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    box-shadow: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    border: none;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background: #1E6DF2;
    border-radius: 3px;
    transition: all 0.3s ease;
    float: right
}


.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #E8F0FE 0%, #D4E4FC 100%);
    backdrop-filter: blur(10px);
    z-index: 2000;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.open {
    transform: translateY(0);
}

.mobile-menu-inner {
    padding: 70px 20px 40px;
    position: relative;
}

.mobile-menu-close {
    position: absolute;
    top: 15px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 28px;
    background: linear-gradient(135deg, #4A90E2, #2C6BBD);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: none;
}

.mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-list li {
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(74, 144, 226, 0.2);
}

.mobile-nav-link {
    display: block;
    font-family: "Ubuntu Sans", sans-serif;
    font-size: 1.2rem;
    padding: 12px 0;
    color: #1A2B3C;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.mobile-nav-link:hover {
    color: #1E6DF2;
}


@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
        /* display: block; */
    }
    
    #logo {
        height: 45px;
    }
}