@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Outfit:wght@300;400;600;700&display=swap');

:root {
    --primary: #3a86ff;
    --primary-glow: rgba(58, 134, 255, 0.4);
    --secondary: #8338ec;
    --accent: #ff006e;
    --bg-dark: #050505;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #f8f9fa;
    --text-muted: #9ba3af;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* --- Base Styling --- */
body {
    background-color: var(--bg-dark) !important;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(58, 134, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(131, 56, 236, 0.05) 0%, transparent 40%);
    color: var(--text-main);
    font-family: var(--font-body);
    margin: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* Fix for default link styling in Dash/Bootstrap */
a {
    text-decoration: none !important;
    transition: all 0.2s ease;
}

/* --- Navbar Overhaul --- */
.navbar-modern {
    background: rgba(5, 5, 5, 0.75) !important;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border) !important;
    padding: 0.8rem 0 !important;
}

.navbar-brand {
    font-size: 1.4rem;
    background: linear-gradient(135deg, #fff 0%, var(--primary) 50%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    letter-spacing: 1px;
}

.nav-link {
    color: var(--text-muted) !important;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1.2rem !important;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-main) !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 20px;
}

/* Dropdown Customization */
.dropdown-menu {
    background: rgba(15, 15, 15, 0.95) !important;
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border) !important;
    border-radius: 12px !important;
    padding: 0.5rem !important;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5) !important;
    margin-top: 10px !important;
}

.dropdown-item {
    color: var(--text-muted) !important;
    border-radius: 8px !important;
    padding: 0.6rem 1rem !important;
    font-size: 0.85rem !important;
}

.dropdown-item:hover {
    background: var(--glass) !important;
    color: var(--text-main) !important;
}

/* --- Hero Section Enhancement --- */
.hero-section {
    position: relative;
    padding: 140px 0 120px;
    background-image: url('/assets/hero_bg.png');
    background-size: cover;
    background-position: center;
    border-radius: 0 0 60px 60px;
    margin-top: -85px; /* Pull up under transparent navbar */
    overflow: hidden;
    box-shadow: inset 0 -100px 100px var(--bg-dark);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-dark) 90%);
    opacity: 0.8;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 25px;
    line-height: 1;
    background: linear-gradient(to right, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    max-width: 600px;
    font-weight: 400;
}

/* --- Premium Cards --- */
.glass-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%) !important;
    backdrop-filter: blur(15px) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 24px !important;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-glow) !important;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 20px var(--primary-glow);
}

.feature-card-icon {
    font-size: 2.2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Dash DataTables Fix --- */
.dash-spreadsheet-container table {
    border-collapse: separate !important;
    border-spacing: 0 8px !important;
}

.dash-spreadsheet-container .dash-spreadsheet-inner td {
    background-color: var(--glass) !important;
    color: var(--text-main) !important;
    border: none !important;
    border-top: 1px solid var(--glass-border) !important;
    border-bottom: 1px solid var(--glass-border) !important;
    padding: 12px !important;
}

/* --- Utilities --- */
.mt-4 { margin-top: 2rem !important; }
.pb-5 { padding-bottom: 4rem !important; }
.small { font-size: 0.8rem !important; }

/* Scrollbar styling */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { 
    background: #333; 
    border-radius: 10px; 
}
::-webkit-scrollbar-thumb:hover { background: #444; }