html,
body {
    min-height: 100%;
    transition: background-color 0.2s ease, color 0.2s ease;
}

body {
    min-height: 100vh;
}

html[data-theme="light"] {
    background-color: #f8f9fa;
}

html[data-theme="dark"] {
    background-color: #121212;
}

.theme-navbar,
.theme-card,
.theme-toggle-btn,
.form-control,
.btn {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

body[data-theme="light"] {
    background-color: #f8f9fa;
    color: #212529;
}

body[data-theme="dark"] {
    background-color: #121212;
    color: #f8f9fa;
}

body[data-theme="light"] .theme-navbar {
    background-color: #ffffff;
    border-bottom: 1px solid #dee2e6;
}

body[data-theme="dark"] .theme-navbar {
    background-color: #000000;
    border-bottom: 1px solid #343a40;
}

body[data-theme="light"] .theme-card {
    background-color: #ffffff;
    color: #212529;
}

body[data-theme="dark"] .theme-card {
    background-color: #1f1f1f;
    color: #f8f9fa;
}

body[data-theme="dark"] .form-control {
    background-color: #2b2b2b;
    border-color: #444;
    color: #f8f9fa;
}

body[data-theme="dark"] .form-control::placeholder {
    color: #adb5bd;
}

.auth-card {
    max-width: 480px;
}

.auth-helper-text {
    margin-top: 1.5rem;
}

.auth-link {
    font-weight: 600;
    text-decoration: none;
}

.auth-link:hover {
    text-decoration: underline;
}

body[data-theme="light"] .auth-card p,
body[data-theme="light"] .auth-helper-text {
    color: #495057;
}

body[data-theme="dark"] .auth-card p,
body[data-theme="dark"] .auth-helper-text {
    color: #ffffff;
}

body[data-theme="light"] .auth-link {
    color: #0d6efd;
}

body[data-theme="dark"] .auth-link {
    color: #8ab4ff;
}

.theme-toggle-btn {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 1030;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    padding: 0;
    border-radius: 999px;
    border: 1px solid transparent;
    box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.18);
}

.theme-toggle-icon {
    display: inline-flex;
    width: 1.5rem;
    height: 1.5rem;
}

.theme-toggle-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

body[data-theme="light"] .theme-toggle-btn {
    background-color: #ffffff;
    border-color: #dee2e6;
    color: #212529;
}

body[data-theme="light"] .theme-toggle-btn:hover,
body[data-theme="light"] .theme-toggle-btn:focus {
    background-color: #f1f3f5;
    color: #212529;
}

body[data-theme="dark"] .theme-toggle-btn {
    background-color: #1f1f1f;
    border-color: #343a40;
    color: #f8f9fa;
}

body[data-theme="dark"] .theme-toggle-btn:hover,
body[data-theme="dark"] .theme-toggle-btn:focus {
    background-color: #2b2b2b;
    color: #ffffff;
}

.nav-logout-form {
    margin: 0;
}

.nav-action-btn {
    margin-top: 0.5rem;
    border-radius: 9px;
    padding: 0.2rem 1.25rem;
    text-align: center;
    border: 1px solid transparent;
}

.nav-action-btn + .nav-action-btn {
    margin-left: 0.5rem;
}

.nav-action-btn:hover {
    text-decoration: none;
}

.nav-logout-btn {
    width: 100%;
    background: none;
    text-align: center;
}

.nav-logout-btn:hover {
    text-decoration: none;
}

body[data-theme="light"] .nav-action-btn-secondary {
    background-color: #ffffff;
    border-color: #ced4da;
    color: #212529;
}

body[data-theme="light"] .nav-action-btn-secondary:hover,
body[data-theme="light"] .nav-action-btn-secondary:focus {
    background-color: #f1f3f5;
    color: #212529;
}

body[data-theme="light"] .nav-action-btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
    color: #ffffff;
}

body[data-theme="light"] .nav-action-btn-primary:hover,
body[data-theme="light"] .nav-action-btn-primary:focus {
    background-color: #0b5ed7;
    border-color: #0a58ca;
    color: #ffffff;
}

body[data-theme="dark"] .nav-action-btn-secondary {
    background-color: #1f1f1f;
    border-color: #495057;
    color: #f8f9fa;
}

body[data-theme="dark"] .nav-action-btn-secondary:hover,
body[data-theme="dark"] .nav-action-btn-secondary:focus {
    background-color: #2b2b2b;
    color: #ffffff;
}

body[data-theme="dark"] .nav-action-btn-primary {
    background-color: #8ab4ff;
    border-color: #8ab4ff;
    color: #0b172a;
}

body[data-theme="dark"] .nav-action-btn-primary:hover,
body[data-theme="dark"] .nav-action-btn-primary:focus {
    background-color: #a6c8ff;
    border-color: #a6c8ff;
    color: #0b172a;
}

@media (min-width: 992px) {
    .nav-action-btn {
        margin-top: 0;
    }
}