body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #6AA8FF, #8FE9FF);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

html, body {
    height: 100%;
    margin: 0;
}

main {
    flex: 1;
}
.container-centered {
    max-width: 700px;
    margin: auto;
    padding: 20px;
}
.navbar {
    background: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid #dfe6ee;
    backdrop-filter: blur(6px);
}

    .navbar a {
        color: #006CFF;
        font-weight: 600;
    }

        .navbar a:hover {
            color: #003f9e;
        }
.btn-primary {
    background-color: #006CFF;
    border-color: #006CFF;
    color: white;
    font-weight: 600;
    border-radius: 8px;
    padding: 10px 20px;
    transition: 0.15s ease;
}

    .btn-primary:hover {
        background-color: #0052C9;
        border-color: #0052C9;
    }

.btn-danger {
    background-color: #dc3545;
    border-radius: 8px;
    padding: 10px 20px;
    color: white;
    border: none;
}

    .btn-danger:hover {
        background-color: #b51f2d;
    }
.btn-secondary {
    background-color: #6c757d;
    color: white;
    border-radius: 8px;
    padding: 10px 20px;
}

    .btn-secondary:hover {
        background-color: #565e64;
    }

input[type="text"], input[type="email"], input[type="password"], textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #cfd8e3;
    border-radius: 8px;
    margin-bottom: 14px;
    transition: 0.2s;
}

    input:focus, textarea:focus {
        border-color: #006CFF;
        box-shadow: 0 0 4px rgba(0, 108, 255, 0.3);
        outline: none;
    }

form label {
    font-weight: 600;
    margin-bottom: 5px;
    color: #212529;
}

.login-card {
    max-width: 400px;
    margin: 80px auto;
    background: white;
    padding: 35px;
    border-radius: 14px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}

.card {
    background: white;
    border: 1px solid #e7edf3;
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    margin-bottom: 25px;
    position: relative;
    overflow: hidden;
}

    .card h2 {
        margin-top: 0;
        font-size: 22px;
        color: #212529;
    }

    .card p {
        color: #444;
    }

.card-date {
    color: #6c757d;
    font-size: 14px;
}
.card img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    object-fit: contain;
    margin-top: 10px;
}

.profile-container {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    max-width: 600px;
    margin: auto;
}

.profile-header {
    text-align: center;
    margin-bottom: 25px;
}

.profile-pic {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #006CFF;
    margin-bottom: 12px;
}

.profile-name {
    font-size: 24px;
    font-weight: bold;
}

.profile-bio {
    font-size: 16px;
    color: #555;
    margin-top: 10px;
}

.input-file {
    border: 2px dashed #8fb9ff;
    padding: 20px;
    border-radius: 10px;
    background: #f8faff;
    cursor: pointer;
    text-align: center;
    color: #006CFF;
    font-weight: 600;
    margin-bottom: 20px;
}

    .input-file:hover {
        background: #edf4ff;
    }

@media (max-width: 600px) {
    .login-card, .profile-container {
        margin: 20px;
        padding: 20px;
    }

    .card {
        padding: 15px;
    }

    .profile-pic {
        width: 110px;
        height: 110px;
    }
}