body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f7f8fa; /* light neutral grey */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Top bar */
.top-bar {
    position: fixed;
    top: 15px;
    right: 20px;
    z-index: 100;
}

.profile-icon {
    display: inline-block;
    background-color: transparent;
    border: 2px solid #006d77; /* deep teal */
    padding: 6px;
    border-radius: 50%;
    text-decoration: none;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.profile-icon:hover {
    background-color: #006d77;
    border-color: #004f52;
}

.profile-icon svg {
    fill: #006d77;
    transition: fill 0.3s ease;
}

.profile-icon:hover svg {
    fill: white;
}

/* Main content centered */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100vh; /* Ensures vertical centering */
}

.main-content h1 {
    font-size: 36px;
    font-weight: 600;
    color: #1b1f23; /* near black */
    margin-bottom: 10px;
}

.main-content p {
    font-size: 18px;
    color: #4a4a4a;
    margin-bottom: 30px;
}

/* Button styling */
.button-row {
    display: flex;
    gap: 18px; /* space between buttons */
}

.button-link {
    background-color: transparent;
    border: 2px solid #006d77;
    color: #006d77;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 17px;
    font-weight: 500;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.button-link:hover {
    background-color: #006d77;
    color: white;
    border-color: #004f52;
}

/* Shared container style for forms and profile */
.signup-container,
.login-container,
.profile-container,
.generic-container {
    background: #ffffff;
    padding: 40px 50px;
    border-radius: 8px;
    box-shadow: 0px 4px 20px rgba(0,0,0,0.06);
    text-align: center;
    width: 380px;
    margin: auto;
}

/* Headings for all pages */
.signup-container h2,
.login-container h2,
.profile-container h2,
.generic-container h2 {
    font-size: 28px;
    font-weight: 600;
    color: #1b1f23;
    margin-bottom: 25px;
}

/* Profile-specific text */
.profile-container p {
    font-size: 16px;
    color: #4a4a4a;
    margin-bottom: 10px;
}

/* Form inputs */
input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 14px;
    margin: 12px 0;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    background: #fafafa;
}

input::placeholder {
    font-size: 15px;
    color: #888;
}

/* Form buttons (outlined style) */
button,
input[type="submit"] {
    background-color: transparent;
    border: 2px solid #006d77;
    color: #006d77;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 500;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

button:hover,
input[type="submit"]:hover {
    background-color: #006d77;
    color: white;
    border-color: #004f52;
}

/* Back button (consistent across pages) */
.back-link {
    position: absolute;
    top: 15px;
    left: 20px;
    background-color: transparent;
    border: 2px solid #006d77;
    color: #006d77;
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.back-link:hover {
    background-color: #006d77;
    color: white;
    border-color: #004f52;
}