/* Importazione font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

* { box-sizing: border-box; margin: 0; padding: 0; }

/* Variabili Colore Base (Tema Scuro) */
:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --border-color: #333;
    --accent-color: #3b82f6;
    --navbar-bg: #1e1e1e;
}

/* Variabili Tema Chiaro */
body.light-theme {
    --bg-color: #ffffff;
    --card-bg: #f9f9f9;
    --text-color: #121212;
    --border-color: #ddd;
    --navbar-bg: #f1f1f1;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

/* NAVBAR */
.navbar {
    background-color: var(--navbar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo { font-size: 26px; font-weight: 800; color: var(--text-color); letter-spacing: -1px; }
.logo span { color: var(--accent-color); }

/* CONTROLLI SLIDER */
.controls-container { display: flex; gap: 20px; align-items: center; }
.switch-group { display: flex; align-items: center; gap: 8px; }
.switch-label { font-size: 16px; }

.switch { position: relative; display: inline-block; width: 44px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background-color: #444; transition: .4s; border-radius: 34px;
}
.slider:before {
    position: absolute; content: ""; height: 16px; width: 16px; left: 3px; bottom: 3px;
    background-color: white; transition: .4s; border-radius: 50%;
}
input:checked + .slider { background-color: var(--accent-color); }
input:checked + .slider:before { transform: translateX(22px); }

/* RICERCA */
.search-container { flex-grow: 1; max-width: 400px; margin-left: 30px; }
#search-input {
    width: 100%; padding: 10px 20px; 
    background: var(--card-bg); 
    border: 1px solid var(--border-color);
    border-radius: 25px; color: var(--text-color); outline: none;
}

/* GRIGLIA HOME */
.container { max-width: 1200px; margin: 40px auto; padding: 0 20px; }
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 25px; }

.card {
    background: var(--card-bg); 
    border: 1px solid var(--border-color); 
    border-radius: 12px;
    overflow: hidden; transition: 0.3s; cursor: pointer;
}
.card:hover { transform: translateY(-5px); border-color: var(--accent-color); }
.card-image { height: 200px; background-size: cover; background-position: center; }
.card-content { padding: 20px; }
.card h2 { font-size: 20px; margin-bottom: 10px; color: var(--text-color); }
.card p { font-size: 14px; color: #888; line-height: 1.5; }

/* VISTA ARTICOLO */
#article-view { max-width: 800px; margin: 0 auto; padding-bottom: 50px; }
#article-view button {
    background: transparent; color: var(--accent-color); border: 1px solid var(--accent-color);
    padding: 8px 20px; border-radius: 20px; cursor: pointer; margin-bottom: 20px;
}
#full-article-content img {
    display: block; max-width: 100%; height: auto; margin: 20px auto;
    border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.testo-articolo { font-size: 18px; line-height: 1.8; color: var(--text-color); }

/* SOCIAL */
.share-bar { display: flex; gap: 15px; margin: 20px 0; align-items: center; border-bottom: 1px solid var(--border-color); padding-bottom: 20px; }
.share-btn {
    width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; 
    justify-content: center; background: #222; border: 1px solid #444; transition: 0.3s;
}
.share-btn svg { width: 18px; height: 18px; fill: #fff; }
.share-btn:hover { background: var(--accent-color); transform: translateY(-3px); }

@media (max-width: 768px) {
    .navbar { flex-direction: column; gap: 15px; }
    .search-container { width: 100%; margin: 0; }
}