app/static/base_enhanced.css

/* ===============================
   THEME & COLOR VARIABLES - EXTENDED
   =============================== */

:root {
    --primary-color: #3b82f6; /* Modern Blue */
    --secondary-color: #10b981; /* Emerald */
    --danger-color: #ef4444; /* Red */
    --warning-color: #f59e0b; /* Amber */
    --dark-color: #1f2937; /* Gray 800 */
    --light-color: #ecf0f5; /* Light Blue Gray */
    --body-bg: #f5f7fa; /* Soft Gray Blue */
    --text-color: #2d3748; /* Deep Gray */
    --card-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.08), 0 1px 3px 0 rgba(0, 0, 0, 0.04);
    --card-shadow-hover: 0 12px 24px -4px rgba(0, 0, 0, 0.12), 0 6px 12px -4px rgba(0, 0, 0, 0.08);
    --navbar-bg: #ffffff;
    --navbar-text: #2d3748;
    --card-bg: #ffffff;
    --card-border: #dce4ed;
    --footer-bg: #f8f9fb;
    --footer-border: #dce4ed;
    --heading-color: #1a202c;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
}

/* Dark mode colors */
[data-theme="dark"] {
    --body-bg: #0f1419; /* Very Deep Dark */
    --text-color: #e0e8f0; /* Light Blue Gray */
    --navbar-bg: #1a2332;
    --navbar-text: #e0e8f0;
    --card-bg: #252f3f;
    --card-border: #3a4557;
    --footer-bg: #1a2332;
    --footer-border: #3a4557;
    --heading-color: #f0f4f8;
    --light-color: #3a4557;
    --glass-bg: rgba(37, 47, 63, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* ===============================
   GLOBAL ANIMATIONS
   =============================== */

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.6;
    }
    100% {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

/* ===============================
   GLOBAL STYLES
   =============================== */

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 700;
    letter-spacing: -0.025em;
    transition: color 0.3s ease;
}

p {
    color: var(--text-color);
}

small {
    color: var(--text-color);
}

/* ===============================
   NAVBAR STYLES - PREMIUM 3D
   =============================== */

.navbar {
    background: linear-gradient(135deg, var(--navbar-bg) 0%, var(--navbar-bg) 100%);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    padding-top: 1rem;
    padding-bottom: 1rem;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--card-border);
}

.navbar-brand {
    color: var(--primary-color) !important;
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    color: var(--navbar-text) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

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

/* ===============================
   CARD STYLES - GLASSMORPHISM
   =============================== */

.card {
    border: 1px solid var(--card-border);
    background: linear-gradient(135deg, var(--glass-bg) 0%, rgba(255,255,255,0.5) 100%);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border-radius: 1.25rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-bottom: none;
    border-radius: 1.25rem 1.25rem 0 0;
    color: white !important;
}

.card-title {
    color: var(--heading-color);
    font-weight: 700;
}

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

/* ===============================
   BUTTON STYLES - RIPPLE & 3D
   =============================== */

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-color: transparent;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #059669 100%);
    border-color: transparent;
    color: white;
}

.btn-secondary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(16, 185, 129, 0.3);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-4px);
}

/* ===============================
   FORM STYLES - 3D FOCUS EFFECTS
   =============================== */

.form-control, 
.form-select {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 2px solid var(--card-border);
    border-radius: 0.75rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
}

.form-control:focus, 
.form-select:focus {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.3rem rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

.form-label {
    color: var(--heading-color);
    font-weight: 600;
    transition: color 0.3s ease;
    margin-bottom: 0.5rem;
}

.form-check-label {
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.3s ease;
}

.form-check-input {
    border: 2px solid var(--card-border);
    border-radius: 0.25rem;
    cursor: pointer;
    transition: all 0.3s ease;
    accent-color: var(--primary-color);
}

.form-check-input:checked {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.form-check-input:hover {
    transform: scale(1.1);
}

/* ===============================
   TAB STYLES - PREMIUM
   =============================== */

.nav-tabs {
    border-bottom: 2px solid var(--card-border);
    background: linear-gradient(135deg, var(--glass-bg) 0%, rgba(255,255,255,0.3) 100%);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    padding: 0.75rem;
    margin-bottom: 1.5rem;
}

.nav-tabs .nav-link {
    color: var(--text-color) !important;
    border-color: transparent;
    border-radius: 0.75rem;
    transition: all 0.4s ease;
    position: relative;
}

.nav-tabs .nav-link:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.nav-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-color: transparent;
    color: white !important;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
    transform: scale(1.05);
}

/* ===============================
   ALERT STYLES - ENHANCED
   =============================== */

.alert {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--body-bg) 100%);
    border: 2px solid var(--card-border);
    border-radius: 1rem;
    color: var(--text-color);
    animation: slideInDown 0.4s ease-out;
    backdrop-filter: blur(10px);
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: #059669;
}

[data-theme="dark"] .alert-success {
    background: rgba(34, 197, 94, 0.15);
    color: #86efac;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: #dc2626;
}

[data-theme="dark"] .alert-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: #b45309;
}

/* ===============================
   RISK BADGE STYLES - GRADIENT
   =============================== */

.risk-badge {
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
    transition: all 0.3s ease;
}

.risk-badge:hover {
    transform: scale(1.1);
}

.risk-low {
    background: linear-gradient(135deg, #d1f2e8 0%, #a7f3d0 100%);
    color: #0d6e4f;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.2);
}

[data-theme="dark"] .risk-low {
    background: linear-gradient(135deg, #145a47 0%, #1d7a6e 100%);
    color: #a7f3d0;
}

.risk-medium {
    background: linear-gradient(135deg, #fef3c7 0%, #fcd34d 100%);
    color: #b45309;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

[data-theme="dark"] .risk-medium {
    background: linear-gradient(135deg, #78350f 0%, #a16207 100%);
    color: #fcd34d;
}

.risk-high {
    background: linear-gradient(135deg, #fee2e2 0%, #fca5a5 100%);
    color: #b91c1c;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .risk-high {
    background: linear-gradient(135deg, #7f1d1d 0%, #991b1b 100%);
    color: #fca5a5;
}

.risk-very-high {
    background: linear-gradient(135deg, #f87171 0%, #dc2626 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

[data-theme="dark"] .risk-very-high {
    background: linear-gradient(135deg, #7f1d1d 0%, #991b1b 100%);
    color: #fecaca;
}

/* ===============================
   UTILITY CLASSES
   =============================== */

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

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
    color: white;
}

.bg-light {
    background-color: var(--light-color) !important;
}

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

.text-muted {
    color: #718096 !important;
}

.spinner-border {
    color: var(--primary-color);
    animation: spin 1s linear infinite;
}

.shadow-lg {
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.15) !important;
}

.shadow-sm {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}

/* ===============================
   FOOTER STYLES
   =============================== */

footer {
    margin-top: 4rem;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--footer-bg) 0%, var(--body-bg) 100%);
    color: #6b7280;
    border-top: 1px solid var(--footer-border);
    transition: all 0.3s ease;
    animation: slideInUp 1s ease-out;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

/* ===============================
   THEME TOGGLE BUTTON - PREMIUM
   =============================== */

.theme-toggle {
    background: linear-gradient(135deg, var(--glass-bg) 0%, rgba(255,255,255,0.5) 100%);
    backdrop-filter: blur(10px);
    border: 2px solid var(--card-border);
    color: var(--text-color);
    padding: 0.65rem 0.85rem;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: scale(1.1);
}

/* ===============================
   RESPONSIVE & MOBILE
   =============================== */

@media (max-width: 768px) {
    .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.9rem;
    }

    .card {
        border-radius: 1rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }
}