:root {
    --bg-color: #0a0a0a;
    --accent-color: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.05);
}

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

body {
    background-color: var(--bg-color);
    color: white;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: center;
}

/* Header & Logos */
header { padding: 20px; display: flex; justify-content: center; }
.logo-container { display: flex; gap: 20px; align-items: center; }
.logo { height: 50px; width: auto; filter: brightness(0) invert(1); }

/* Main Content */
.content { padding: 40px 20px; flex-grow: 1; display: flex; flex-direction: column; justify-content: center; }
h1 { font-size: 1.5rem; letter-spacing: 5px; margin-bottom: 30px; color: #888; }

/* Countdown Grid */
.countdown-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 2x2 en móviles */
    gap: 15px;
    max-width: 500px;
    margin: 0 auto;
}

.time-block {
    background: var(--glass-bg);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.1);
}

.time-block span { font-size: 2.5rem; font-weight: bold; display: block; }

/* Button */
.btn-play {
    margin-top: 40px;
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    background: white;
    color: black;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s;
}

.btn-play:hover { transform: scale(1.05); background: #ddd; }

/* Footer */
footer { padding: 20px; font-size: 0.8rem; color: #555; background: #050505; }

/* Desktop Adjustments */
@media (min-width: 768px) {
    .countdown-grid { grid-template-columns: repeat(4, 1fr); max-width: 800px; }
    h1 { font-size: 2.5rem; }
}