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

:root {
    --font-primary: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --color-primary: #4f46e5;
    --color-primary-dark: #4338ca;
    --color-primary-light: #6366f1;
    --color-secondary: #ec4899;
    --color-accent: #0891b2;
    
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-bg-card: #ffffff;
    
    --color-text-primary: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
    
    --color-border: #e2e8f0;
    --color-border-light: #cbd5e1;
    
    --color-success: #059669;
    --color-warning: #d97706;
    --color-danger: #dc2626;
    --color-info: #0891b2;
    
    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --gradient-hero: linear-gradient(135deg, rgba(79, 70, 229, 0.95) 0%, rgba(124, 58, 237, 0.9) 100%);
    --gradient-bg: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f8fafc 100%);
    --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafb 100%);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
    
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

body {
    font-family: var(--font-primary);
    background-color: #f8fafc;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(236, 72, 153, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.02) 0%, transparent 50%);
    color: var(--color-text-primary);
    min-height: 100vh;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--color-border);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    z-index: 10000;
    position: relative;
}

.navbar-toggler {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}

.navbar-brand {
    font-weight: 800;
    color: var(--color-primary) !important;
    font-size: 1.75rem;
}

.nav-link {
    color: var(--color-text-secondary) !important;
    margin: 0 10px;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link:hover {
    color: var(--color-primary) !important;
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link.active {
    color: var(--color-primary) !important;
    font-weight: 600;
}

.btn-demo {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-light);
    margin-right: 10px;
    transition: all var(--transition-normal);
}

.btn-demo:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-signup {
    background: var(--gradient-primary);
    color: #ffffff;
    font-weight: 600;
    border: none;
    transition: all var(--transition-normal);
}

.btn-signup:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.hero-content .btn-dark {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: #ffffff;
    backdrop-filter: blur(5px);
}

.hero-content .btn-dark:hover {
    background-color: #ffffff;
    border-color: #ffffff;
    color: var(--color-primary);
}

.btn-dark:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-light {
    background-color: var(--color-bg-primary);
    border-color: var(--color-border);
    color: var(--color-text-primary);
    transition: all var(--transition-normal);
}

.btn-light:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.profile-dropdown .btn-light.dropdown-toggle {
    background-color: #ffffff !important;
    border-color: #e2e8f0 !important;
    color: #1e293b !important;
    box-shadow: none !important;
}

.profile-dropdown .btn-light.dropdown-toggle:hover,
.profile-dropdown .btn-light.dropdown-toggle:focus,
.profile-dropdown .btn-light.dropdown-toggle:active {
    background-color: #ffffff !important;
    border-color: #e2e8f0 !important;
    color: #1e293b !important;
}

.profile-dropdown .btn-light.dropdown-toggle::after {
    display: none;
}

.profile-dropdown .dropdown-item.active {
    color: var(--color-primary);
    font-weight: 600;
    background-color: var(--color-bg-secondary);
}

.profile-dropdown .profile-avatar {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #ffffff;
    font-size: 1rem;
}

.profile-dropdown .profile-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.profile-dropdown .dropdown-menu {
    min-width: 200px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    z-index: 10001;
}

.profile-dropdown .dropdown-item {
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.profile-dropdown .dropdown-item:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

.profile-dropdown .dropdown-divider {
    border-color: var(--color-border);
}

.card {
    border: 1px solid var(--color-border);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    margin: 0;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.card-title {
    color: var(--color-text-primary);
    font-weight: 600;
}

.card-text {
    color: var(--color-text-secondary);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.hero-banner {
    background: 
        radial-gradient(circle at 20% 80%, rgba(79, 70, 229, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.25) 0%, transparent 50%),
        radial-gradient(circle at 60% 60%, rgba(6, 182, 212, 0.2) 0%, transparent 50%),
        linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    z-index: auto;
}

.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(79, 70, 229, 0.3) 0%, rgba(124, 58, 237, 0.2) 50%, rgba(236, 72, 153, 0.1) 100%);
}

.hero-content {
    position: relative;
    background: transparent;
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: var(--radius-lg);
    color: #ffffff;
}

.hero-content h1 {
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.hero-content .lead {
    color: rgba(255, 255, 255, 0.9);
}

footer {
    background: 
        radial-gradient(circle at 15% 30%, rgba(79, 70, 229, 0.15) 0%, transparent 45%),
        radial-gradient(circle at 85% 60%, rgba(236, 72, 153, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 50% 100%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, #e2e8f0 0%, #cbd5e1 100%) !important;
    padding: 2rem 0;
    margin-top: 2rem;
    border-top: none;
}

footer.card {
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    border: none;
}

footer .border-bottom {
    border-color: var(--color-border) !important;
}

footer a {
    text-decoration: none !important;
    color: var(--color-text-secondary) !important;
    transition: all var(--transition-fast);
}

footer a:hover {
    color: var(--color-primary) !important;
    transform: translateY(-2px);
}

footer h6 {
    color: var(--color-text-primary);
    font-weight: 600;
}

footer p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

footer .text-muted {
    color: var(--color-text-muted) !important;
}

footer .fab, footer .fas {
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

footer .fab:hover {
    color: var(--color-primary) !important;
    transform: scale(1.2);
}

.footer-bottom {
    background-color: transparent;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    border-radius: 0;
}

.text-muted {
    color: var(--color-text-muted) !important;
}

.border-primary {
    border-color: var(--color-primary) !important;
}

.border-success {
    border-color: var(--color-success) !important;
}

.border-warning {
    border-color: var(--color-warning) !important;
}

.border-danger {
    border-color: var(--color-danger) !important;
}

.border-info {
    border-color: var(--color-info) !important;
}

.border-dark {
    border-color: var(--color-text-secondary) !important;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

code, pre, .font-mono {
    font-family: var(--font-mono);
}

.btn {
    font-weight: 500;
    letter-spacing: 0.01em;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: -0.03em;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
}

img {
    border-radius: var(--radius-md);
}

@media (max-width: 991px) {
    .navbar-collapse {
        background-color: var(--color-bg-primary);
        padding: 1rem;
        border-radius: var(--radius-md);
        margin-top: 0.5rem;
        box-shadow: var(--shadow-lg);
    }
    
    .navbar-nav {
        margin-bottom: 1rem;
    }
    
    .nav-link {
        padding: 0.75rem 0;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-link:hover {
        background: transparent;
    }

    .d-flex.align-items-center {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch !important;
    }
    
    .d-flex.align-items-center .nav-link {
        text-align: center;
        border: none;
    }
    
    .d-flex.align-items-center .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .profile-dropdown {
        width: 100%;
    }
    
    .profile-dropdown .btn {
        width: 100%;
        justify-content: center;
        background-color: var(--color-bg-primary);
        border: 1px solid var(--color-border);
        padding: 0.75rem 1rem;
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
    }
    
    .profile-dropdown .btn:hover {
        border-color: var(--color-primary);
    }
    
    .profile-dropdown .profile-avatar {
        width: 36px;
        height: 36px;
        background: var(--gradient-primary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 0.9rem;
    }
    
    .profile-dropdown .profile-name {
        color: var(--color-text-primary);
        font-weight: 600;
        margin-left: 0.75rem;
    }
    
    .profile-dropdown .dropdown-toggle::after {
        margin-left: auto;
    }
    
    .profile-dropdown .dropdown-menu {
        width: 100%;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-lg);
        margin-top: 0.5rem;
    }
}

@media (max-width: 768px) {
    .hero-banner {
        min-height: 60vh;
        border-radius: var(--radius-md);
        padding: 1rem;
    }
    
    .hero-content {
        padding: 1.5rem;
        margin: 0.5rem;
    }
    
    .hero-content h1 {
        font-size: 1.5rem !important;
    }
    
    .hero-content .lead {
        font-size: 0.9rem;
    }
    
    .hero-content .btn {
        width: 100%;
    }
    
    .container-fluid {
        padding: 1rem !important;
    }
    
    .container-fluid h1 {
        font-size: 1.25rem !important;
    }
    
    .container-fluid img {
        margin-top: 1.5rem;
    }
    
    .footer-cards-section {
        margin-top: 2rem !important;
        margin-bottom: 2rem !important;
    }
    
    .footer-cards-section .card {
        margin-bottom: 1rem;
    }
    
    .footer-cards-section .col-12.col-md-4 {
        margin-bottom: 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    footer .col-md-3, 
    footer .col-md-2, 
    footer .col-md-4 {
        margin-bottom: 1.5rem;
        text-align: center;
    }
    
    footer .text-md-start {
        text-align: center !important;
    }
    
    footer .d-flex.justify-content-lg-between {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.25rem !important;
    }
    
    .display-4 {
        font-size: 1.75rem !important;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .stat-card {
        margin-bottom: 0.75rem;
    }
    
    .account-header {
        padding: 1.5rem 1rem;
    }
    
    .account-header h1 {
        font-size: 1.5rem !important;
    }
}

.display-4 {
    font-weight: 700;
}

.img-transparent {
    background-color: transparent !important;
    mix-blend-mode: multiply;
}

.img-blend {
    mix-blend-mode: multiply;
    opacity: 0.95;
}

.container-fluid {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.font-weight-normal {
    font-weight: 400;
}

.form-control {
    background-color: var(--color-bg-primary);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

.form-control:focus {
    background-color: var(--color-bg-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

@media (max-width: 768px) {
    .hero-content {
        padding: 2rem;
        margin: 1rem;
    }
    
    .hero-banner {
        border-radius: var(--radius-md);
    }
}