* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f4f5f7;
    color: #1f2933;
}

h1, h3 {
    margin: 0 0 1rem;
}

a {
    color: #2563eb;
}

button {
    font-family: inherit;
    font-size: 1rem;
}

/* Auth forms (index.html, registration.html) */

.form-container {
    max-width: 360px;
    margin: 4rem auto;
    padding: 2rem;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.form-header {
    text-align: center;
}

.input-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.login-form,
.registration-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.login-form input,
.registration-form input {
    padding: 0.6rem 0.75rem;
    border: 1px solid #cbd2d9;
    border-radius: 4px;
    font-size: 1rem;
}

.button {
    display: flex;
}

.submit {
    flex: 1;
    padding: 0.6rem 0.75rem;
    background-color: #2563eb;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
}

.submit:hover {
    background-color: #1d4ed8;
}

.signup {
    text-align: center;
    font-size: 0.9rem;
    color: #52606d;
}

/* Bookmarks page */

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: #ffffff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.navbar h1 {
    margin: 0;
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    margin-right: auto;
    margin-left: 2rem;
}

.nav-links a {
    color: #52606d;
    text-decoration: none;
    font-weight: 500;
}

.nav-links a:hover {
    color: #1f2933;
}

.nav-links a.active {
    color: #2563eb;
}

#signout-btn {
    padding: 0.5rem 1rem;
    background-color: #e12d39;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#signout-btn:hover {
    background-color: #cf1124;
}

#create-bookmark-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-width: 900px;
    margin: 2rem auto 1rem;
    padding: 0 1rem;
}

#create-bookmark-form input,
#create-bookmark-form select {
    padding: 0.5rem 0.6rem;
    border: 1px solid #cbd2d9;
    border-radius: 4px;
    font-size: 1rem;
}

#create-bookmark-form input {
    flex: 1;
    min-width: 160px;
}

#create-bookmark-form button {
    padding: 0.5rem 1rem;
    background-color: #2563eb;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#create-bookmark-form button:hover {
    background-color: #1d4ed8;
}

#manage-categories-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background-color: #52606d;
    color: #ffffff;
    border-radius: 4px;
    text-decoration: none;
}

#manage-categories-link:hover {
    background-color: #3e4c59;
}

#bookmarks-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.bookmark-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: #ffffff;
    border-radius: 6px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.bookmark-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.bookmark_url {
    text-decoration: none;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bookmark_url:hover {
    text-decoration: underline;
}

.bookmark-url-text {
    font-size: 0.8rem;
    color: #52606d;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bookmark-category-select {
    padding: 0.4rem 0.5rem;
    border: 1px solid #cbd2d9;
    border-radius: 4px;
}

.bookmark-delete-btn {
    padding: 0.4rem 0.75rem;
    background-color: #e12d39;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.bookmark-delete-btn:hover {
    background-color: #cf1124;
}

/* Categories page */

.add-category-section {
    max-width: 600px;
    margin: 2rem auto 1.5rem;
    padding: 1.25rem 1.5rem;
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    border-radius: 8px;
}

.add-category-section h3 {
    margin: 0 0 0.75rem;
    color: #2563eb;
}

.add-category-section #create-category-form {
    margin: 0;
    padding: 0;
    max-width: none;
}

#categories-container {
    max-width: 600px;
    margin: 2rem auto 1rem;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: #ffffff;
    border-radius: 6px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.category-name-input {
    flex: 1;
    padding: 0.4rem 0.6rem;
    border: 1px solid #cbd2d9;
    border-radius: 4px;
}

.category-row button {
    padding: 0.4rem 0.75rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: #ffffff;
    background-color: #2563eb;
}

.category-row button:last-of-type {
    background-color: #e12d39;
}

.category-row button:disabled {
    background-color: #cbd2d9;
    cursor: not-allowed;
}

.category-global-badge {
    font-size: 0.8rem;
    color: #52606d;
}

#create-category-form {
    display: flex;
    gap: 0.5rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    padding: 0 1rem;
}

#create-category-form input {
    flex: 1;
    padding: 0.5rem 0.6rem;
    border: 1px solid #cbd2d9;
    border-radius: 4px;
}

#create-category-form button {
    padding: 0.5rem 1rem;
    background-color: #2563eb;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#create-category-form button:hover {
    background-color: #1d4ed8;
}

/* Mobile */

@media (max-width: 640px) {
    .navbar {
        flex-wrap: wrap;
        row-gap: 0.75rem;
        padding: 1rem;
    }

    .nav-links {
        order: 3;
        width: 100%;
        margin: 0;
        justify-content: center;
    }

    .form-container {
        margin: 2rem 1rem;
        padding: 1.5rem;
    }

    #create-bookmark-form {
        flex-direction: column;
    }

    #create-bookmark-form input,
    #create-bookmark-form select {
        width: 100%;
        min-width: 0;
    }

    #create-bookmark-form button {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    #manage-categories-link {
        display: none;
    }

    .bookmark-row,
    .category-row {
        flex-wrap: wrap;
    }

    .bookmark-info,
    .category-name-input {
        flex-basis: 100%;
    }

    .bookmark-category-select,
    .bookmark-delete-btn,
    .category-row button {
        flex: 1;
    }
}