@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #6366f1; /* Indigo 500 */
    --primary-dark: #4f46e5;
    --secondary: #10b981; /* Emerald 500 */
    --accent: #f43f5e; /* Rose 500 */
    --dark: #0f172a; /* Slate 900 */
    --light: #f8fafc; /* Slate 50 */
    --surface: #ffffff;
    --text-main: #1e293b; /* Slate 800 */
    --text-muted: #64748b; /* Slate 500 */
    --border-radius: 1rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f1f5f9;
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    line-height: 1.6;
}

/* Navbar Glassmorphism */
.navbar {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--dark) !important;
    font-weight: 800;
    letter-spacing: -0.025em;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary) !important;
    background: rgba(99, 102, 241, 0.1);
}

/* Modern Cards */
.card {
    background: var(--surface);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(99, 102, 241, 0.3);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid #f1f5f9;
    padding: 1.5rem;
    font-weight: 700;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    border-radius: 2rem;
    padding: 5rem 3rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    margin-bottom: 3rem;
    color: white;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    transform: rotate(-15deg);
}

.hero-content {
    position: relative;
    z-index: 1;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--primary);
    border: none;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.5);
}

.btn-success {
    background: var(--secondary);
    border: none;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }

/* Footer */
footer {
    background: var(--surface);
    border-top: 1px solid #e2e8f0;
    margin-top: 5rem;
    padding: 4rem 0;
    color: var(--text-muted);
}

/* Inputs */
.form-control {
    border-radius: 0.75rem;
    padding: 0.875rem 1rem;
    border-color: #e2e8f0;
    background-color: #f8fafc;
    transition: all 0.2s;
}

.form-control:focus {
    background-color: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Badges */
.badge {
    padding: 0.5em 1em;
    border-radius: 2rem;
    font-weight: 600;
}