:root {
    --color-bg: #fef6e4;
    --color-primary: #3e2c74;
    --color-accent: #f2c94c;
    --color-accent-hover: #f7d94c;
    --color-about-bg: #b9a6d9;
    --color-footer-bg: #8a7bc1;
    --color-progress: #8a7bc1;
    --color-overlay: rgba(0, 0, 0, 0.3);

    --alert-success-bg: #e0d4f7;
    --alert-success-text: #155724;
    --alert-success-border: #c3e6cb;

    --alert-error-bg: #ffe0e0;
    --alert-error-text: #721c24;
    --alert-error-border: #f5c6cb;

    --alert-warning-bg: #fff3cd;
    --alert-warning-text: #856404;
    --alert-warning-border: #ffeeba;

    --alert-info-bg: #d1ecf1;
    --alert-info-text: #0c5460;
    --alert-info-border: #bee5eb;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin: 0;
    padding: 0;
}

.font-poppins {
    font-family: 'Poppins', sans-serif;
}

.messages {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-family: Arial, sans-serif;
}

.alert-success {
    background-color: var(--alert-success-bg);
    border-color: var(--alert-success-border);
    color: var(--alert-success-text);
}

.alert-error {
    background-color: var(--alert-error-bg);
    border-color: var(--alert-error-border);
    color: var(--alert-error-text);
}

.alert-warning {
    background-color: var(--alert-warning-bg);
    border-color: var(--alert-warning-border);
    color: var(--alert-warning-text);
}

.alert-info {
    background-color: var(--alert-info-bg);
    border-color: var(--alert-info-border);
    color: var(--alert-info-text);
}

header {
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-circle {
    background-color: var(--color-primary);
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.025em;
}

nav.desktop-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    font-weight: 500;
    font-size: 1rem;
}

nav.desktop-nav a {
    color: var(--color-primary);
    text-decoration: none;
    cursor: pointer;
}

nav.desktop-nav a:hover {
    text-decoration: underline;
}

nav.desktop-nav .sign-in-btn {
    background-color: var(--color-accent);
    color: var(--color-primary);
    border-radius: 0.5rem;
    padding: 0.5rem 1.25rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

nav.desktop-nav .sign-in-btn:hover {
    background-color: var(--color-accent-hover);
}

button#menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1.25rem;
    cursor: pointer;
    z-index: 30;
}

#sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 16rem;
    background-color: var(--color-bg);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.15);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    z-index: 40;
    display: flex;
    flex-direction: column;
}

#sidebar.open {
    transform: translateX(0);
}

#sidebar .sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-primary);
}

#close-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1.5rem;
    padding: 1rem;
    align-self: flex-end;
    cursor: pointer;
}

#sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem;
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-primary);
}

#sidebar nav a {
    color: var(--color-primary);
    text-decoration: none;
    cursor: pointer;
}

#sidebar nav a:hover {
    text-decoration: underline;
}

#sidebar nav .sign-in-btn {
    background-color: var(--color-accent);
    color: var(--color-primary);
    border-radius: 0.5rem;
    padding: 0.5rem 1.25rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    width: max-content;
    transition: background-color 0.3s ease;
}

#sidebar nav .sign-in-btn:hover {
    background-color: var(--color-accent-hover);
}

#overlay {
    position: fixed;
    inset: 0;
    background-color: var(--color-overlay);
    z-index: 30;
    display: none;
}

#overlay.active {
    display: block;
}

footer {
    background-color: var(--color-footer-bg);
    color: #fff;
    padding: 0.5rem;
    text-align: center;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    position: sticky;
    bottom: 0;
    left: 0;
    width: 100;
    z-index: 10;
    margin-top: 20px;
}

.footer-content a {
    color: #fff;
    margin: 0 0.5rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-content a:hover {
    color: var(--color-accent);
}

.footer-content i {
    font-size: 1.2rem;
    vertical-align: middle;
}


@media (min-width: 640px) {
    nav.desktop-nav {
        display: flex !important;
    }

    button#menu-btn {
        display: none !important;
    }

    #sidebar,
    #overlay {
        display: none !important;
    }
}

@media (max-width: 639px) {
    nav.desktop-nav {
        display: none !important;
    }

    button#menu-btn {
        display: block !important;
    }
}