body {
    background: linear-gradient(135deg, #0a0e17 0%, #1a1f2e 100%);
    color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    max-width: 1900px;
    width: 90%;
    margin: 0 auto;
    background: rgba(22, 26, 39, 0.9);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(15, 19, 30, 0.95);
    border-bottom: 3px solid #ff4d94;
}

.hz_logo {
    height: auto;
    width: 300px;
}

.hobby_video {
    width: 3000px;
    height: 500px;
}

.welcome_text {
    font-size: 100px;
    font-weight: 1000;
    color: #ff4d94;
    text-shadow: 0 0 15px rgba(255, 77, 148, 0.6);
    text-align: center;
    flex: 1;
}

nav {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 20px;
    background: rgba(15, 19, 30, 0.8);
    height: 50px;
}

nav a {
    color: #a0a8c3;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    margin-top: 30px;
    margin-bottom: 150px;
}

nav a:hover {
    color: #ff4d94;
}

nav a.active {
    color: #ff4d94;
    font-weight: 600;
}

main {
    padding: 40px;
}

.profile_container {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.profile_left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    min-width: 220px;
}

.profile_img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #ff4d94;
    box-shadow: 0 0 20px rgba(255, 77, 148, 0.4);
}

.personal_details {
    background: rgba(15, 19, 30, 0.5);
    padding: 15px;
    border-radius: 10px;
    text-align: left;
    width: 100%;
}

.personal_details p {
    margin: 5px 0;
    color: #a0a8c3;
}

.personal_details strong {
    color: #6fe4ff;
}

h2 {
    color: #6fe4ff;
    font-size: 40px;
    margin-bottom: 15px;
    text-shadow: 0 0 10px rgba(111, 228, 255, 0.6);
}

.profile_info p {
    color: #a0a8c3;
    line-height: 1.6;
    font-size: 25px;
    font-style: italic;
}

.ict_motivation {
    background: rgba(15, 19, 30, 0.5);
    padding: 30px;
    border-radius: 15px;
    margin-top: 40px;
}

.ict_motivation h2 {
    color: #6fe4ff;
    font-size: 32px;
    margin-bottom: 20px;
    text-align: center;
}

.motivation_content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.motivation_text {
    flex: 2;
    color: #a0a8c3;
    font-size: 25px;
    font-style: italic;
    line-height: 1.6;
}

.motivation_text ul {
    color: #a0a8c3;
    margin: 15px 0 15px 20px;
}

.motivation_text li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.motivation_image_space {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-width: 250px;
}

.image_ict {
    width: 100%;
    height: 450px;
    background: rgba(111, 228, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6fe4ff;
    font-size: 16px;
    text-align: center;
    object-fit: cover;
}

.image_links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    width: 100%;
}

.image_links a {
    color: #6fe4ff;
    text-decoration: none;
    padding: 8px 15px;
    border: 1px solid #6fe4ff;
    border-radius: 5px;
    transition: all 0.3s;
    font-size: 14px;
}

.image_links a:hover {
    background-color: rgba(111, 228, 255, 0.1);
    color: #ff4d94;
    border-color: #ff4d94;
}


footer {
    text-align: center;
    padding: 20px;
    background: rgba(15, 19, 30, 0.95);
    color: #a0a8c3;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer_button {
    transition: 1s;
    text-align: center;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    color: rgb(255, 255, 255);
    text-decoration: none;
    background-color: rgb(119, 32, 131);
    font-style: bold;
    border: solid;
    border-color: rgb(119, 32, 131);
    border-width: 15px;
    box-shadow: 5px 10px rgb(14, 52, 156);
    display: inline-block;
    margin-bottom: 15px;
}

.footer_button:hover {
    color: rgb(53, 28, 73);
    background-color: white;
    border-color: white;
    transition: 1s;
    box-shadow: 5px 10px rgb(141, 94, 129);
}

.scroll-indicator {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    cursor: pointer;
    transition: opacity 0.3s ease;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
}

.scroll-indicator svg {
    display: block;
    overflow: visible;
}

.scroll-indicator.hidden {
    opacity: 0;
    pointer-events: none;
}

.neon-circle {
    fill: none;
    stroke: #00d4ff;
    stroke-width: 2;
    filter: drop-shadow(0 0 8px #00d4ff) drop-shadow(0 0 15px #00d4ff);
}

.arrow {
    fill: none;
    stroke: #00d4ff;
    stroke-width: 2;
    animation: arrowBounce 2s ease-in-out infinite;
    filter: drop-shadow(0 0 5px #00d4ff);
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(5px);
    }
}


.menu-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, rgba(20, 11, 81, 0.9), rgba(44, 48, 48, 0.9));
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    padding: 12px 18px;
    border-radius: 10px;
    cursor: pointer;
    z-index: 1001;
    font-weight: bold;
    font-size: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 77, 148, 0.4);
}

.menu-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 77, 148, 0.6);
}

.side-menu {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: rgba(10, 14, 23, 0.97);
    backdrop-filter: blur(10px);
    padding: 60px 20px 20px 20px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    border-left: 3px solid #ff4d94;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.8);
    overflow-y: auto;
}

.side-menu.active {
    right: 0;
}


.side-menu-header {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(111, 228, 255, 0.4);
}

.side-menu-header h3 {
    color: #ff4d94;
    font-size: 18px;
    margin: 0;
    text-align: center;
    text-shadow: 0 0 20px rgba(255, 77, 148, 0.8);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 700;
}


.side-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
}


.side-link {
    color: #cbd5e1;
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 6px;
    transition: all 0.3s ease;
    background: rgba(22, 26, 39, 0.5);
    border: 1px solid rgba(111, 228, 255, 0.2);
    display: block;
    line-height: 1.2;
    font-size: 13px;
    min-height: auto;
}

.side-link:hover {
    color: #fff;
    background: rgba(255, 77, 148, 0.15);
    border-color: rgba(255, 77, 148, 0.5);
    transform: translateX(-3px);
}

.link-text {
    font-size: 12px;
    line-height: 1.2;
    font-weight: 500;
    display: block;
    margin: 0;
    padding: 0;
}


.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.side-menu::-webkit-scrollbar {
    width: 6px;
}

.side-menu::-webkit-scrollbar-track {
    background: rgba(15, 19, 30, 0.5);
}

.side-menu::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #ff4d94, #6fe4ff);
    border-radius: 10px;
}

.side-menu::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #6fe4ff, #ff4d94);
}

.auth_links {
    display: flex;
    gap: 12px;
    align-items: center;
}
.auth_links a {
    color: #6fe4ff;
    text-decoration: none;
    padding: 6px 14px;
    border: 1px solid #6fe4ff;
    border-radius: 6px;
    font-size: 14px;
    transition: 0.3s;
}
.auth_links a:hover {
    background: #ff4d94;
    border-color: #ff4d94;
    color: #fff;
}

.flash {
    max-width: 600px;
    margin: 0 auto 20px;
    padding: 14px 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    animation: flash_in 0.3s ease;
}

.flash_success {
    background: rgba(31, 122, 77, 0.2);
    border: 1px solid #1f7a4d;
    color: #6effae;
}

.flash_error {
    background: rgba(192, 57, 43, 0.2);
    border: 1px solid #c0392b;
    color: #ff7575;
}

@keyframes flash_in {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}