/* --- 1. VARIABLES & RESET --- */
:root {
    --ubc-blue: #002145;
    --ubc-gold: #E2A828;
    --dark-text: #333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    line-height: 1.6;
    color: var(--dark-text);
    padding-top: 80px;
}

/* --- 2. BACKGROUND LAYERS (Triple Layer System for Team Page) --- */
#bg-default {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -3;
    background-color: var(--ubc-blue);
    background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('images/hero.jpg');
    background-size: cover;
    background-position: center;
}

#bg-back {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -2;
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
    opacity: 0;
    transition: opacity 0.5s ease-in-out; 
}

#bg-front {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

/* --- 3. NAVIGATION --- */
header {
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 80px;
    display: flex;
    align-items: center;
}

.nav-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--ubc-blue);
    text-decoration: none;
    letter-spacing: 1px;
}

nav ul { list-style: none; display: flex; gap: 25px; }
nav a { text-decoration: none; color: var(--dark-text); font-weight: 600; transition: color 0.3s; }
nav a:hover, nav a.active { color: var(--ubc-gold); }

/* --- 4. HERO SECTION (Restored for Home Page) --- */
.hero {
    background: linear-gradient(rgba(0, 33, 69, 0.8), rgba(0, 33, 69, 0.6)), url('images/RoverMog.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    margin-top: -80px;
    padding-top: 80px;
}

.hero h1 { font-size: 3.5rem; margin-bottom: 1rem; }
.hero p { font-size: 1.3rem; max-width: 700px; margin: 0 auto 2.5rem auto; }

/* Buttons */
.btn {
    background-color: var(--ubc-gold);
    color: var(--ubc-blue);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 50px;
    transition: transform 0.2s;
    display: inline-block;
}
.btn:hover { transform: translateY(-3px); }

.btn-outline {
    border: 2px solid var(--ubc-blue);
    background: transparent;
    color: var(--ubc-blue);
    padding: 13px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 50px;
    margin-left: 10px;
    transition: all 0.3s;
}
.btn-outline:hover { background: var(--ubc-blue); color: white; }

/* --- 5. LAYOUT --- */
.section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    /* This handles both Dark Mode (Team) and Light Mode (Home) */
    color: var(--ubc-blue); 
    margin-bottom: 50px;
}
/* If the section title is inside a dark page (like team page w/ hidden bg), we can override it there, 
   but for now, defaulting to Blue is safer for the Home page white background. */
   
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* --- 6. THE CARD STYLE (Focus Mode Logic) --- */
.card {
    background-color: white; 
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    border-top: 5px solid var(--ubc-blue);
    cursor: pointer;
    transition: all 0.4s ease;
}

.card h3 { color: var(--ubc-blue); margin-bottom: 10px; transition: color 0.3s; }
.card p { color: var(--dark-text); transition: color 0.3s; }

/* Grid Hover State (Everyone fades) */
.grid:hover .card {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(2px);
    border-top-color: rgba(255, 255, 255, 0.5);
    transform: scale(0.98);
}
.grid:hover .card h3 { color: rgba(255,255,255,0.8); }
.grid:hover .card p { color: rgba(255,255,255,0.7); }

/* Specific Card Hover State (The one you touch pops) */
.grid .card:hover {
    background-color: white;
    transform: scale(1.05);
    border-top-color: var(--ubc-gold);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
    z-index: 10;
}
.grid .card:hover h3 { color: var(--ubc-blue); }
.grid .card:hover p { color: var(--dark-text); }


/* --- 7. SPONSORS (Restored for Home Page) --- */
.sponsor-section {
    background-color: #f9f9f9;
    text-align: center;
}

.tier-title {
    color: var(--ubc-blue);
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 50px;
    margin-bottom: 20px;
    opacity: 0.7;
}

.sponsor-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-bottom: 30px;
}

.sponsor-logo {
    width: auto;
    transition: transform 0.3s ease;
}

.sponsor-logo:hover { transform: scale(1.1); }

/* Sponsor Tiers Sizing */
.tier-partner img   { max-height: 100px; }
.tier-champion img  { max-height: 80px; }
.tier-supporter img { max-height: 60px; }
.tier-friend img    { max-height: 40px; }


/* --- 8. FOOTER --- */
footer {
    background-color: var(--ubc-blue);
    color: white;
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
}

/* --- 9. SCROLL ANIMATION --- */
.hidden { opacity: 0; transform: translateY(40px); transition: all 0.8s ease-out; }
.show { opacity: 1; transform: translateY(0); }

/* --- FIX: TEAM PAGE TITLE CONTRAST --- */
/* Target the title ONLY when it's inside the 'team-page' body */
.team-page .section-title {
    /* White provides maximum contrast over dark backgrounds */
    color: white; 
    
    /* Adds a slight shadow to make the text pop over busy images */
    text-shadow: 0 2px 5px rgba(0,0,0,0.5); 
}