@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&display=swap');

:root {
    --primary-color: #2c3e50;
    --accent-color: #1abc9c;
    --bg-color: #ecf0f1;
    --font-color: #34495e;
    --font-family: 'Open Sans', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
/* Header Banner */
.banner {
    background-color: #E7BF1F;
    padding: 20px;
    text-align: center;
}
.banner img {
    max-width: 100px;
    height: 60px;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--font-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    flex: 1;
    width: 100%;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    text-align: center;
}

.subtitle {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--font-color);
}

h2 {
    font-size: 1.75rem;
    margin: 1.5rem 0 1rem;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

details {
    background: #fff;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
    padding: 1rem;
    margin-bottom: 1rem;
    transition: border-color 0.3s;
}

details[open] {
    border-color: var(--accent-color);
}

summary {
    font-weight: 600;
    cursor: pointer;
    outline: none;
}
/* Remove all native markers */
summary::marker,
summary::-webkit-details-marker,
summary::-moz-list-bullet {
    display: none;
}

summary::before {
    display: none;
}

details[open] summary::before {
    transform: rotate(90deg);
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}
/* Footer */
.footer {
    font-size: 12px;
    text-align: center;
    padding: 20px;
    background: #f4f4f4;
    margin-top: 30px;
}
.signin-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.g_id_signin {
    max-width: 300px;
    width: 100%;
}
.search-bar {
    width: 100%;
    max-width: 400px;
    margin: 20px auto;
    display: block;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}



.category-heading {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 1.5rem 0 1rem;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    cursor: pointer;

    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
}

.category-heading::after {
    content: '+';
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-color);
    transition: content 0.2s ease;
}


details[open] > .category-heading::after {
    content: '−';
}