:root {
    --bg-color: #ffffff;
    --bg-alt: #f4f6f8;
    --text-color: #111827;
    --text-muted: #6b7280;
    --obpc-blue: #002776;
    --obpc-green: #009c3b;
    --obpc-yellow: #ffdf00;
    --primary-color: var(--obpc-blue); 
    --primary-hover: #001e5c;
    --secondary-color: var(--obpc-green);
    --secondary-hover: #007a2e;
    --border-color: #e5e7eb;
    --card-bg: #ffffff;
    --font-family: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #0a0a0a;
    --bg-alt: #121212;
    --text-color: #ffffff;
    --text-muted: #9ca3af;
    --primary-color: var(--obpc-blue);
    --primary-hover: #003ab0;
    --secondary-color: var(--obpc-green);
    --secondary-hover: #00bd48;
    --border-color: #27272a;
    --card-bg: #18181b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-family); background-color: var(--bg-color); color: var(--text-color); line-height: 1.6; transition: var(--transition); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.text-center { text-align: center; }
.section { padding: 6rem 0; }
.bg-alt { background-color: var(--bg-alt); }

.header { background-color: rgba(var(--bg-color), 0.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1000; padding: 1rem 0; }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.header::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--obpc-green) 0%, var(--obpc-yellow) 50%, var(--obpc-blue) 100%); }
.logo-img { height: 50px; width: auto; }
#theme-toggle { background: none; border: none; cursor: pointer; color: var(--text-color); padding: 0.5rem; }

.hero { min-height: 85vh; display: flex; align-items: center; justify-content: center; text-align: center; background-color: #000; background-size: cover; background-position: center; color: #ffffff; padding: 2rem 0; }
.hero h1 { font-size: clamp(3rem, 8vw, 6rem); font-weight: 900; letter-spacing: -0.05em; line-height: 1; margin-bottom: 1rem; text-transform: uppercase; }
.hero .slogan { font-size: clamp(1.2rem, 3vw, 1.8rem); font-weight: 400; margin-bottom: 3rem; color: #e5e7eb; }
.hero-buttons { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; }

.btn { padding: 1rem 2.5rem; border-radius: 4px; font-weight: 600; font-size: 1rem; letter-spacing: 0.05em; text-transform: uppercase; transition: var(--transition); cursor: pointer; border: 2px solid transparent; }
.btn-primary { background-color: var(--text-color); color: var(--bg-color); }
[data-theme="dark"] .btn-primary { background-color: #ffffff; color: #000000; }
.btn-primary:hover { background-color: var(--primary-color); color: #ffffff; }
.btn-outline { background-color: transparent; border-color: #ffffff; color: #ffffff; }
.btn-outline:hover { background-color: rgba(255, 255, 255, 0.1); }

.grid { display: grid; gap: 2rem; margin-top: 3rem; }
.cards { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background-color: var(--card-bg); border: 1px solid var(--border-color); padding: 2.5rem 1.5rem; border-radius: 8px; text-align: center; transition: var(--transition); border-bottom: 4px solid var(--border-color); }
.card:hover { border-bottom-color: var(--obpc-blue); transform: translateY(-5px); }
.card .time { font-size: 2.5rem; font-weight: 800; color: var(--obpc-blue); margin: 1rem 0; }
[data-theme="dark"] .card .time { color: var(--obpc-green); }

.transmissions { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card-hover { padding: 0; overflow: hidden; cursor: pointer; border-bottom: none; }
.card-hover:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); }
[data-theme="dark"] .card-hover:hover { box-shadow: 0 15px 30px rgba(0,0,0,0.5); }
.card-hover .thumb { width: 100%; height: 220px; object-fit: cover; display: block; border-bottom: 3px solid var(--obpc-blue); }
.card-content { padding: 1.5rem; text-align: left; }

.map-container { border-radius: 8px; overflow: hidden; border: 1px solid var(--border-color); margin-top: 2rem; }

.social-links { display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap; margin-top: 3rem; }
.social-btn { background-color: var(--card-bg); border: 1px solid var(--border-color); padding: 1rem 2rem; border-radius: 50px; font-weight: 600; display: flex; align-items: center; gap: 0.5rem; transition: var(--transition); }
.social-btn:hover { background-color: var(--obpc-blue); color: #ffffff; border-color: var(--obpc-blue); }
.social-btn.insta:hover { background-color: #E1306C; border-color: #E1306C; }
.social-btn.yt:hover { background-color: #FF0000; border-color: #FF0000; }

.footer { background-color: var(--card-bg); border-top: 1px solid var(--border-color); padding: 4rem 0 2rem; }
.footer-logo { width: 120px; margin-bottom: 1.5rem; }
.footer .disclaimer { font-size: 0.85rem; color: var(--text-muted); margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border-color); }

.whatsapp-float { position: fixed; bottom: 30px; right: 30px; background-color: #25d366; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); z-index: 1000; transition: var(--transition); }
.whatsapp-float:hover { transform: scale(1.1) translateY(-5px); }