* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

:root {
    --main-bg: #07111f;
    --card-bg: rgba(15, 23, 42, 0.92);
    --border: #23344f;
    --white: #ffffff;
    --text: #cbd5e1;
    --blue: #38bdf8;
    --blue-dark: #0ea5e9;
    --hover: #1e293b;
    --shadow: 0 0 25px rgba(56, 189, 248, 0.25);
}

.light-theme {
    --main-bg:   #f0f4f8;
    --card-bg:   #ffffff;
    --border:    #18323e;
    --white:     #18323e;
    --text:      #18323e;
    --blue:      #18323e;
    --blue-dark: #0f2530;
    --hover:     #e2eef2;
    --shadow:    0 0 25px rgba(24, 50, 62, 0.2);
    background-color: #f0f4f8;
    background-image: none;
}

.light-theme .navbar {
    background: #18323e;
    border-bottom: 2px solid #0f2530;
}

.light-theme .nav-brand {
    color: #ffffff;
}

.light-theme .nav-brand span {
    color: #7ec8d8;
}

.light-theme .nav-links a {
    color: #a8c8d4;
}

.light-theme .nav-links a:hover {
    color: #ffffff;
}

.light-theme .btn-login {
    background: linear-gradient(to right, #7ec8d8, #18323e);
}

.light-theme .theme-btn {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    border: 1px solid #18323e;
    background: #e2eef2;
    color: #18323e;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
}

.light-theme .theme-btn:hover {
    transform: translateY(-3px);
    border-color: #18323e;
    box-shadow: 0 0 15px rgba(24, 50, 62, 0.3);
}

.light-theme header {
    background: #e8f4f8;
    border-bottom: 2px solid #18323e;
}

.light-theme .edit-profile-section h2 {
    color: #18323e;
    border-left-color: #18323e;
}

.light-theme .edit-profile-form {
    background: #18323e;
    border: 2px solid #18323e;
}

.light-theme .card {
    background: #18323e;
    border: 2px solid #18323e;
    box-shadow: 0 2px 12px rgba(24, 50, 62, 0.15);
    backdrop-filter: none;
}

.light-theme .card h3 {
    color: #ffffff;
}

.light-theme .card p {
    color: #ffffff;
}
.light-theme footer {
    background: #18323e;
    border-top: 2px solid #0f2530;
}

.light-theme .footer-box h3 {
    color: #7ec8d8;
}

.light-theme .footer-box p,
.light-theme .footer-box a {
    color: #a8c8d4;
}

.light-theme .footer-box a:hover {
    color: #ffffff;
}

.light-theme .social-links a {
    border-color: #2c4a56;
    color: #a8c8d4;
}

.light-theme .social-links a:hover {
    border-color: #7ec8d8;
    color: #ffffff;
    background: rgba(126, 200, 216, 0.15);
}

.light-theme .copyright {
    color: #a8c8d4;
    border-top-color: #2c4a56;
}

.light-theme hr {
    border-top: 1px solid #18323e;
}

body {
    background-image: url(img1/digital-art-men-city-futuristic-night-hd-wallpaper-01b69d213afe95f35634472bcdf74a70.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    color: var(--white);
}

.navbar {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    padding: 16px 30px;
    background: rgba(7, 17, 31, 0.96);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.45);
}

.nav-brand {
    font-size: 24px;
    font-weight: bold;
    color: var(--white);
}

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

.nav-links {
    text-align: center;
}

.nav-links a {
    margin: 0 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    transition: 0.3s;
}

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

.btn-login {
    background: linear-gradient(to right, var(--blue), var(--blue-dark));
    border: none;
    padding: 10px 22px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    color: white;
    transition: 0.3s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-btn {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--white);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.3s;
}

.theme-btn:hover {
    transform: translateY(-3px);
    border-color: var(--blue);
    box-shadow: var(--shadow);
}

header {
    text-align: center;
    padding: 80px 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(4px);
}

header h1 {
    font-size: 48px;
    margin-bottom: 12px;
    color: var(--white);
}

header span {
    color: var(--blue);
}

header p {
    color: var(--text);
    font-size: 17px;
}

section {
    padding: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

section h2 {
    grid-column: 1 / -1;
    border-left: 5px solid var(--blue);
    padding-left: 12px;
    margin-bottom: 10px;
    color: var(--white);
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 18px;
    text-align: center;
    transition: 0.3s;
    position: relative;
    backdrop-filter: blur(8px);
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--blue);
    box-shadow: var(--shadow);
}

.card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 12px;
}

.card h3 {
    margin-bottom: 10px;
    color: var(--white);
}

.card p {
    color: var(--text);
}

section:first-of-type {
    display: flex;
    justify-content: flex-start;
    padding-left: 30px;
}

section:first-of-type .card {
    max-width: 330px;
    margin: auto;
}

section:first-of-type .card img {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 4px solid var(--blue);
    margin: 10px auto;
    display: block;
}

.profile-info p {
    margin: 8px 0;
}

section:nth-of-type(4) {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.edit-profile-section {
    padding: 40px;
    display: flex;
    justify-content: center;
    flex-direction: column;
}

.edit-profile-section h2 {
    font-size: 24px;
    margin-bottom: 20px;
    border-left: 5px solid var(--blue);
    padding-left: 10px;
    color: var(--white);
}

.edit-profile-form {
    width: 100%;
    background: rgba(15, 23, 42, 0.88);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 50px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.4);
}

.edit-profile-form div {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.edit-profile-form div:last-child {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: flex-end;
    gap: 15px;
}

.edit-profile-form label {
    font-size: 13px;
    color: var(--text);
    letter-spacing: 1px;
}

.edit-profile-form input,
.edit-profile-form select {
    padding: 15px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--hover);
    color: var(--white);
    font-size: 14px;
    outline: none;
    transition: 0.3s;
}

.edit-profile-form input:focus,
.edit-profile-form select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 18px rgba(56, 189, 248, 0.25);
    transform: translateY(-2px);
}

.edit-profile-form input[type="submit"] {
    padding: 16px 45px;
    background: linear-gradient(to right, var(--blue), var(--blue-dark));
    color: white;
    font-weight: bold;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: 0.3s;
    letter-spacing: 2px;
}

.edit-profile-form input[type="submit"]:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.edit-profile-form button {
    padding: 14px 30px;
    background: var(--hover);
    color: var(--white);
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: 0.3s;
}

.edit-profile-form button:hover {
    background: #334155;
    transform: translateY(-2px);
}

footer {
    background: rgba(7, 17, 31, 0.96);
    border-top: 1px solid var(--border);
    padding: 3rem;
    margin-top: 4rem;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.footer-box h3 {
    color: var(--blue);
    margin-bottom: 15px;
}

.footer-box p,
.footer-box a {
    color: var(--text);
    text-decoration: none;
    display: block;
    margin-bottom: 5px;
    transition: 0.3s;
}

.footer-box a:hover {
    color: var(--blue);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.social-links a {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    font-size: 1rem;
    transition: 0.3s;
}

.social-links a:hover {
    color: white;
    border-color: var(--blue);
    background: rgba(56, 189, 248, 0.15);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    margin-top: 35px;
    color: var(--text);
    border-top: 1px solid var(--border);
    padding-top: 20px;
}

hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 10px 0;
}

@media (max-width: 900px) {

    .navbar {
        grid-template-columns: 1fr;
        gap: 15px;
        text-align: center;
    }

    .nav-brand {
        text-align: center;
    }

    .nav-buttons {
        justify-content: center;
    }

    .edit-profile-form {
        grid-template-columns: 1fr;
        padding: 25px;
    }

    .edit-profile-form div:last-child {
        flex-direction: column;
        align-items: stretch;
    }

    header h1 {
        font-size: 38px;
    }
}