/* Variables & Reset */
:root {
    --primary-color: #003366; 
    --secondary-color: #C8102E; 
    --text-color: #333;
    --text-light: #555;
    --bg-color: #fff;
    --bg-light: #f9f9fa;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --transition: all 0.3s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-main); color: var(--text-color); line-height: 1.6; background-color: var(--bg-color); }
.container { width: 90%; max-width: 800px; margin: auto; }
.text-center { text-align: center; }

/* Buttons */
.btn { display: inline-block; padding: 0.8rem 1.5rem; border-radius: 4px; font-weight: bold; text-decoration: none; cursor: pointer; transition: var(--transition); text-align: center; margin: 0.5rem; }
.btn-primary { background-color: var(--primary-color); color: #fff; border: 2px solid var(--primary-color); }
.btn-primary:hover { background-color: #fff; color: var(--primary-color); }
.button-group { display: flex; justify-content: center; flex-wrap: wrap; margin-top: 1.5rem; }

/* Hero */
.hero { background: var(--primary-color); color: white; padding: 4rem 0; margin-bottom: 2rem; }
.hero h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.subtitle { font-size: 1.1rem; opacity: 0.9; font-weight: 300; }

/* Sections & Cards */
.section { padding: 2rem 0; }
.section-title { margin-bottom: 1.5rem; color: var(--primary-color); }
.bg-light { background-color: var(--bg-light); padding: 3rem; border-radius: 8px; margin-top: 2rem;}
.content-card { background: white; padding: 2.5rem; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); border-top: 4px solid var(--secondary-color); }
.content-card h2 { color: var(--primary-color); margin-bottom: 1rem; }
.description { margin-bottom: 2rem; font-size: 1.1rem; }

/* Tracks */
.track-list { display: flex; flex-direction: column; gap: 1.5rem; }
.track { background: var(--bg-light); padding: 1.5rem; border-radius: 8px; border-left: 4px solid var(--primary-color); }
.track-title { margin-bottom: 1rem; font-size: 1.1rem; }
audio { width: 100%; outline: none; }
.embed-placeholder { background: #e0e0e0; padding: 2rem; text-align: center; border-radius: 4px; color: var(--text-light); }

/* Footer */
footer { text-align: center; padding: 2rem 0; margin-top: 3rem; border-top: 1px solid #eaeaea; }
.back-link { display: inline-block; margin-top: 1rem; color: var(--text-light); text-decoration: none; }
.back-link:hover { color: var(--primary-color); }