@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #0ea5e9; /* Sky Blue */
    --accent-color: #10b981;  /* Emerald Green */
    --text-dark: #0f172a;     /* Slate 900 */
    --text-light: #64748b;    /* Slate 500 */
    --bg-light: #f1f5f9;      /* Slate 100 */
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

/* --- The Modern "Aurora" Background --- */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
    background-image: 
        radial-gradient(at 27% 37%, hsla(215, 98%, 61%, 1) 0px, transparent 50%),
        radial-gradient(at 97% 21%, hsla(135, 98%, 61%, 1) 0px, transparent 50%),
        radial-gradient(at 52% 99%, hsla(355, 98%, 61%, 1) 0px, transparent 50%),
        radial-gradient(at 10% 29%, hsla(256, 96%, 61%, 1) 0px, transparent 50%),
        radial-gradient(at 97% 96%, hsla(38, 60%, 74%, 1) 0px, transparent 50%),
        radial-gradient(at 33% 50%, hsla(222, 67%, 73%, 1) 0px, transparent 50%),
        radial-gradient(at 79% 53%, hsla(343, 68%, 79%, 1) 0px, transparent 50%);
    filter: blur(80px);
}

/* --- "Glassmorphism" Card Style --- */
.glass-card {
    background-color: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem; 
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
}

/* --- Bottom Navigation Bar --- */
.bottom-nav {
    position: fixed;
    bottom: 1rem; 
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 300px;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 9999px; 
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    z-index: 1000;
}

.nav-link.active {
    color: var(--primary-color);
}
.nav-link.active .nav-icon-bg {
    background-color: var(--primary-color);
    color: white;
}

/* --- Animations --- */
.fade-in-subtle {
    animation: fadeInAnimation 0.7s ease-in-out forwards;
}
.slide-in-up-fast {
    animation: slideInUpAnimation 0.5s ease-out forwards;
    opacity: 0;
}
@keyframes fadeInAnimation { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideInUpAnimation {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}