/* --- START OF FILE public/css/global.css (CLEAN BLUE THEME) --- */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&family=Roboto:wght@400;700&display=swap');

:root {
    --primary-red: #0088ff;        /* Xanh dương chủ đạo */
    --secondary-red: #0033aa;      /* Xanh dương sẫm */
    --accent-glow: #00d2ff;        /* Xanh cyan sáng phát quang */
    --text-color: #1a1a1a;
    --text-light: #888;
    --border-color: #e0e0e0;
    --shadow-hover: 0 10px 30px rgba(0, 136, 255, 0.4);
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: transparent; 
    color: var(--text-color);
    margin: 0;
    overflow-x: hidden;
}

main { padding: 30px; position: relative; z-index: 5; text-align: center; }

.fadeIn { animation: fadeIn 0.6s ease-in-out; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-15px); }
    to { opacity: 1; transform: translateY(0); }
}

.header { 
    padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; 
    position: sticky; top: 0; z-index: 10; background-color: transparent; 
    border-bottom: 1px solid rgba(0, 136, 255, 0.2);
}

.grid-container { display: grid; gap: 25px; }

.btn-primary { 
    width: 100%; padding: 14px; border: none; border-radius: 10px; cursor: pointer; 
    font-weight: bold; font-size: 1em; text-transform: uppercase; color: white; 
    background: linear-gradient(90deg, var(--secondary-red), var(--primary-red), var(--secondary-red)); 
    background-size: 200% 100%; transition: all 0.4s ease-in-out; 
    animation: animated-gradient 4s linear infinite; 
}
@keyframes animated-gradient { 
    0% { background-position: 200% 0; } 
    100% { background-position: -200% 0; } 
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }

.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5); justify-content: center; align-items: center; }
.modal-content { background-color: #fff; padding: 30px; border-radius: 12px; box-shadow: 0 5px 25px rgba(0,0,0,0.2); width: 90%; max-width: 500px; animation: fadeIn 0.3s; }
.close-btn { color: #aaa; float: right; font-size: 28px; font-weight: bold; cursor: pointer; line-height: 1; padding-bottom: 10px; }
.close-btn:hover { color: #000; }

.floating-support-button { position: fixed; bottom: 25px; right: 25px; z-index: 1000; width: 60px; height: 60px; background: linear-gradient(45deg, #0088ff, #00d2ff); border-radius: 50%; display: flex; justify-content: center; align-items: center; box-shadow: 0 5px 15px rgba(0, 136, 255, 0.5); text-decoration: none; animation: pulse-blue 2s infinite, fadeIn 0.5s ease-out; transition: transform 0.2s ease-in-out; }
.floating-support-button:hover { transform: scale(1.1); }
.floating-support-button svg { width: 32px; height: 32px; fill: #fff; }
@keyframes pulse-blue { 0% { box-shadow: 0 0 0 0 rgba(0, 136, 255, 0.7); } 70% { box-shadow: 0 0 0 20px rgba(0, 136, 255, 0); } 100% { box-shadow: 0 0 0 0 rgba(0, 136, 255, 0); } }

#space-dust-overlay { display: none; }
.video-overlay { display: none; }
/* --- END OF FILE public/css/global.css --- */