static/css/style.css

/* Custom CSS for NLP Ultimate Tutorial */

:root {
    --primary-color: #1976D2;
    --primary-hover: #1565C0;
    --secondary-color: #424242;
    --success-color: #4CAF50;
    --info-color: #2196F3;
    --warning-color: #FF9800;
    --danger-color: #F44336;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gradient-subtle: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

/* Dark theme variables */
[data-theme="dark"] {
    --primary-color: #64B5F6;
    --primary-hover: #42A5F5;
    --secondary-color: #e0e0e0;
    --success-color: #81C784;
    --info-color: #64B5F6;
    --warning-color: #FFB74D;
    --danger-color: #FF8A80;
    --light-color: #2d2d2d;
    --dark-color: #e0e0e0;
    --gradient-subtle: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
}

/* Developer Banner */
.developer-banner {
    margin: 1.5rem 0;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 50px;
    border: 1px solid rgba(25, 118, 210, 0.2);
    max-width: fit-content;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 8px 32px rgba(25, 118, 210, 0.12);
    transition: all 0.3s ease;
}

.developer-banner:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(25, 118, 210, 0.15);
}

[data-theme="dark"] .developer-banner {
    background: rgba(45, 45, 45, 0.95);
    backdrop-filter: blur(20px);
    border-color: rgba(100, 181, 246, 0.3);
    box-shadow: 0 8px 32px rgba(100, 181, 246, 0.15);
}

[data-theme="dark"] .developer-banner:hover {
    box-shadow: 0 8px 30px rgba(100, 181, 246, 0.2);
}

.developer-banner .dev-btn {
    font-size: 0.88rem;
    font-weight: 500 !important;
    padding: 0.42rem 0.85rem;
    border-radius: 6px;
    background: #1976D2;
    border: 1px solid #1565C0;
    color: #ffffff !important;
    transition: background-color 0.15s ease, transform 0.15s ease, color 0.15s ease;
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    box-shadow: none;
    /* ensure clear spacing inside the banner */
    margin-left: 0.5rem;
    margin-top: 2px;
    margin-bottom: 2px;
    line-height: 1.1;
    letter-spacing: 0.2px;
}

.developer-banner .dev-btn:hover {
    background: #1565C0;
    transform: translateY(-1px);
    border-color: #11539d;
    color: #ffffff !important;
    text-decoration: none !important;
}

[data-theme="dark"] .developer-banner .dev-btn {
    background: #42A5F5;
    border-color: #2e8bd6;
}

[data-theme="dark"] .developer-banner .dev-btn:hover {
    background: #2196F3;
    border-color: #1c7ccc;
}

.developer-banner .dev-btn i {
    margin-right: 0.35rem;
    font-size: 0.9rem;
}

.developer-banner strong {
    font-size: 1rem;
    color: var(--secondary-color);
}

[data-theme="dark"] .developer-banner strong {
    color: #e0e0e0;
}

/* Developer Modal Styling */
.developer-hero {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #1976D2 0%, #42A5F5 50%, #64B5F6 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.profile-image-wrapper {
    margin-bottom: 1rem;
}

.profile-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 3px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.profile-image i {
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.hero-name {
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-title {
    opacity: 0.9;
    margin-bottom: 0.5rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-education {
    opacity: 0.8;
    margin-bottom: 0;
    font-size: 0.9rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.modal-content-body {
    background: #ffffff;
}

[data-theme="dark"] .modal-content-body {
    background: #2d2d2d;
    color: #e0e0e0;
}

.info-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: rgba(25, 118, 210, 0.2);
}

[data-theme="dark"] .info-card {
    background: #1a1a1a;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .info-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border-color: rgba(100, 181, 246, 0.3);
}

.info-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: white;
}

.info-icon.education {
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
}

.info-icon.vision {
    background: linear-gradient(135deg, #FF9800, #FFB74D);
}

.info-icon.plans {
    background: linear-gradient(135deg, #9C27B0, #BA68C8);
}

.info-icon.thanks {
    background: linear-gradient(135deg, #F44336, #EF5350);
}

.info-card h6 {
    color: #2d2d2d;
    font-weight: 600;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

[data-theme="dark"] .info-card h6 {
    color: #e0e0e0;
}

.info-card p {
    color: #666666;
    line-height: 1.6;
    margin-bottom: 0;
}

[data-theme="dark"] .info-card p {
    color: #cccccc;
}

.social-section {
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .social-section {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.social-btn.linkedin {
    background: linear-gradient(135deg, #0077B5, #00A0DC);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 119, 181, 0.3);
}

.social-btn.linkedin:hover {
    background: linear-gradient(135deg, #005885, #0077B5);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 119, 181, 0.4);
    color: white;
}

.social-btn.github {
    background: linear-gradient(135deg, #333333, #555555);
    color: white;
    box-shadow: 0 4px 15px rgba(51, 51, 51, 0.3);
}

.social-btn.github:hover {
    background: linear-gradient(135deg, #1a1a1a, #333333);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(51, 51, 51, 0.4);
    color: white;
}

.social-btn i {
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

.social-btn span {
    font-size: 1rem;
}


.modal-content {
    border: none;
    border-radius: 15px;
    overflow: hidden;
}

.modal-header {
    border-bottom: none;
    background: linear-gradient(135deg, var(--primary-color), #42A5F5) !important;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
}

[data-theme="dark"] .modal-content {
    background-color: #2d2d2d;
    color: #e0e0e0;
}

[data-theme="dark"] .modal-footer {
    background-color: #1a1a1a;
    border-top-color: #404040;
}

/* Body and background */
body {
    background: var(--gradient-subtle);
    transition: all 0.3s ease;
    overflow-x: hidden;
    max-width: 100%;
}

/* Navbar styling */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1030 !important;
}

/* Ensure navbar container spans full width comfortably */
.navbar .container {
    max-width: 100% !important;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
}

/* Dropdown menus should overlay the page and scroll internally if too tall */
.navbar-nav .dropdown-menu {
    z-index: 2000 !important; /* stay above navbar */
    max-height: 70vh !important; /* avoid pushing page */
    overflow-y: auto !important; /* scroll inside menu when needed */
    margin-top: 0.5rem !important; /* small gap below trigger */
    border-radius: 12px !important;
    box-shadow: 0 12px 28px rgba(0,0,0,0.22) !important;
}

/* Navbar dropdown visual style */
.navbar-nav .dropdown-menu {
    background: #ffffff !important;
    border: 1px solid rgba(0,0,0,0.08) !important;
    border-radius: 12px !important;
    padding: 0.5rem 0 !important;
    box-shadow: 0 12px 28px rgba(0,0,0,0.18) !important;
    min-width: 220px !important;
}

.navbar-nav .dropdown-item {
    padding: 0.6rem 1rem !important;
    font-weight: 500 !important;
    color: #2b2b2b !important;
    border-radius: 8px !important;
    margin: 0.1rem 0.5rem !important;
}

.navbar-nav .dropdown-item:hover,
.navbar-nav .dropdown-item:focus {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover)) !important;
    color: #ffffff !important;
}

/* Dark mode dropdown contrast */
[data-theme="dark"] .navbar-nav .dropdown-menu {
    background: #1f1f1f !important;
    border-color: rgba(255,255,255,0.12) !important;
}

[data-theme="dark"] .navbar-nav .dropdown-item { color: #e0e0e0 !important; }
[data-theme="dark"] .navbar-nav .dropdown-item:hover, [data-theme="dark"] .navbar-nav .dropdown-item:focus { color: #ffffff !important; }

/* Mobile: let dropdowns be part of the flow inside the collapse */
@media (max-width: 991.98px) {
    .navbar-nav .dropdown-menu {
        position: static !important;
        max-height: none !important;
        overflow: visible !important;
        width: 100% !important;
        margin: 0.25rem 0 !important;
        box-shadow: 0 6px 18px rgba(0,0,0,0.18) !important;
    }
    .navbar-collapse {
        max-height: 80vh !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        padding-bottom: 1rem !important;
    }
}

/* Anchor dropdowns directly under their toggles (desktop) */
.navbar-nav .dropdown { position: relative !important; }
.navbar-nav .dropdown-menu {
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: auto !important;
    transform: none !important;
}

/ * Respect Bootstrap end-aligned menus */
.navbar-nav .dropdown-menu-end { left: auto !important; right: 0 !important; }

/* Constrain dropdown height so page doesn't vertically scroll when open */
.navbar-nav .dropdown-menu { max-height: 70vh !important; overflow-y: auto !important; }

.navbar-nav .dropdown-menu { overflow-x: hidden !important; }

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

/* Modern Footer Styling */
.modern-footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #ffffff;
    padding: 3rem 0 2rem;
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
}

.modern-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.footer-brand h5 {
    color: #64B5F6;
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.footer-description {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.footer-credit {
    display: flex;
    justify-content: center;
    align-items: center;
}

.credit-badge {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.credit-badge:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.credit-text {
    display: block;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.25rem;
}

.developer-name {
    display: block;
    font-size: 1.1rem;
    color: #64B5F6;
    font-weight: 700;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    align-items: center;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.05);
    color: #ffffff;
    font-weight: 500;
}

.social-link:hover {
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.github-link:hover {
    background: #333333;
    border-color: #333333;
}

.linkedin-link:hover {
    background: #0077B5;
    border-color: #0077B5;
}

.social-link i {
    font-size: 1.2rem;
}

/* Dark mode footer adjustments */
[data-theme="dark"] .modern-footer {
    background: #0d1117 !important; /* solid dark, no glassy gradient */
}

[data-theme="dark"] .modern-footer::before {
    background: transparent !important; /* remove glossy top line */
}

[data-theme="dark"] .credit-badge {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}

[data-theme="dark"] .social-link {
    background: rgba(255,255,255,0.03);
    border-color: rgba(255,255,255,0.15);
}

/* Responsive footer */
@media (max-width: 768px) {
    .modern-footer {
        padding: 2rem 0 1.5rem;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
        margin-top: 1rem;
    }
    
    .footer-credit {
        margin: 1.5rem 0;
    }
}

/* Card styling */
.card {
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-radius: 10px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-radius: 10px 10px 0 0 !important;
    border: none;
}

/* Button styling */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #388E3C 100%);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #1976D2 100%);
}

/* Form styling */
.form-control, .form-select {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(25, 118, 210, 0.25);
}

/* Alert styling */
.alert {
    border-radius: 10px;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.alert-info {
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    color: #1565C0;
    border-left: 5px solid var(--primary-color);
}

.alert-warning {
    background: linear-gradient(135deg, #FFF8E1 0%, #FFECB3 100%);
    color: #E65100;
    border-left: 5px solid var(--warning-color);
}

.alert-success {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    color: #2E7D32;
    border-left: 5px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, #FFEBEE 0%, #FFCDD2 100%);
    color: #C62828;
    border-left: 5px solid var(--danger-color);
}

/* Tab styling */
.nav-tabs {
    border-bottom: 2px solid #e0e0e0;
}

.nav-tabs .nav-link {
    border: none;
    border-radius: 8px 8px 0 0;
    margin-right: 5px;
    color: var(--secondary-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    background-color: rgba(25, 118, 210, 0.1);
}

.nav-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-color: transparent;
}

/* Statistics cards */
.card.text-center {
    background: white;
    border: 2px solid #e0e0e0;
}

.card.text-center:hover {
    border-color: var(--primary-color);
    transform: scale(1.02);
}

/* Footer styling */
footer {
    background: linear-gradient(135deg, var(--dark-color) 0%, #1a1a1a 100%) !important;
    margin-top: auto;
}

/* Loading spinner */
.spinner-border {
    color: var(--primary-color);
}

/* Results container */
#resultsContainer {
    min-height: 200px;
}

/* Dark theme styles */
[data-theme="dark"] {
    background: var(--gradient-subtle);
    color: var(--dark-color);
}

[data-theme="dark"] .card {
    background-color: #2d2d2d;
    color: var(--dark-color);
}

[data-theme="dark"] .card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: #2d2d2d;
    color: var(--dark-color);
    border-color: #555;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: #2d2d2d;
    color: var(--dark-color);
    border-color: var(--primary-color);
}

[data-theme="dark"] .nav-tabs {
    border-bottom-color: #555;
}

[data-theme="dark"] .nav-tabs .nav-link {
    color: var(--dark-color);
}

[data-theme="dark"] .nav-tabs .nav-link:hover {
    background-color: rgba(100, 181, 246, 0.1);
}

[data-theme="dark"] .card.text-center {
    background-color: #2d2d2d;
    border-color: #555;
    color: var(--dark-color);
}

[data-theme="dark"] .alert-info {
    background: linear-gradient(135deg, #1a3c5a 0%, #0d2a3f 100%);
    color: var(--primary-color);
}

[data-theme="dark"] .alert-warning {
    background: linear-gradient(135deg, #3e2e00 0%, #2a1f00 100%);
    color: var(--warning-color);
}

[data-theme="dark"] .alert-success {
    background: linear-gradient(135deg, #1b3525 0%, #0f1f15 100%);
    color: var(--success-color);
}

[data-theme="dark"] .alert-danger {
    background: linear-gradient(135deg, #4A1515 0%, #2a0a0a 100%);
    color: var(--danger-color);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .container-fluid {
        padding: 10px;
    }
    
    .card {
        margin-bottom: 15px;
    }
    
    .btn {
        margin-bottom: 10px;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
}

/* Animation classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: #2d2d2d;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--primary-color);
}

/* Table styling */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border: none;
    font-weight: 600;
}

.table tbody tr:hover {
    background-color: rgba(25, 118, 210, 0.1);
}

[data-theme="dark"] .table {
    color: var(--dark-color);
}

[data-theme="dark"] .table tbody tr:hover {
    background-color: rgba(100, 181, 246, 0.1);
}

/* Chart container */
.chart-container {
    position: relative;
    height: 400px;
    margin: 20px 0;
}

/* Code blocks */
pre {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    overflow-x: auto;
}

[data-theme="dark"] pre {
    background-color: #2d2d2d;
    border-color: #555;
    color: var(--dark-color);
}

/* Badge styling */
.badge {
    font-size: 0.8em;
    padding: 0.5em 0.75em;
    border-radius: 6px;
}

/* Progress bar */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
}

.progress-bar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    border-radius: 4px;
}

[data-theme="dark"] .progress {
    background-color: #555;
}

/* Tooltip styling */
.tooltip {
    font-size: 0.875rem;
}

.tooltip-inner {
    background-color: var(--dark-color);
    border-radius: 6px;
}

/* Modal styling */
.modal-content {
    border-radius: 10px;
    border: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-radius: 10px 10px 0 0;
}

[data-theme="dark"] .modal-content {
    background-color: #2d2d2d;
    color: var(--dark-color);
}

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

.shadow-custom {
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.border-gradient {
    border: 2px solid;
    border-image: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%) 1;
}

/***** Global horizontal scroll guards *****/
html, body { overflow-x: hidden !important; max-width: 100% !important; }
.container-fluid, .container { overflow-x: hidden !important; max-width: 100% !important; }

/* Reset dropdown positioning to Bootstrap defaults */
.navbar-nav .dropdown { position: static !important; }
.navbar-nav .dropdown-menu { position: absolute !important; top: auto !important; left: auto !important; right: auto !important; }

/* Cap dropdown width to viewport and allow wrapping */
.navbar-nav .dropdown-menu { max-width: calc(100vw - 2rem) !important; overflow-wrap: anywhere; }

/* Ensure quick-nav and badges shadows don't trigger scroll */
.quick-nav, .entity-text-container, .card { overflow: visible !important; }

/* --- Dark mode global text legibility --- */
[data-theme="dark"] body,
[data-theme="dark"] .container,
[data-theme="dark"] .container-fluid {
    color: #e6e6e6 !important;
}

/* Links in dark mode */
[data-theme="dark"] a { color: #82b1ff !important; }
[data-theme="dark"] a:hover { color: #b3c8ff !important; }

/* Cards */
[data-theme="dark"] .card { background-color: #1f1f1f !important; color: #e8e8e8 !important; border-color: rgba(255,255,255,0.08) !important; }
[data-theme="dark"] .card-header { background-color: #242424 !important; color: #e8e8e8 !important; border-bottom-color: rgba(255,255,255,0.08) !important; }
[data-theme="dark"] .card .text-muted { color: #b0b0b0 !important; }

/* Alerts */
[data-theme="dark"] .alert { background-color: #262626 !important; color: #f0f0f0 !important; border-color: rgba(255,255,255,0.12) !important; }
[data-theme="dark"] .alert-info { background-color: rgba(33,150,243,0.12) !important; color: #dbe9ff !important; border-color: rgba(33,150,243,0.35) !important; }
[data-theme="dark"] .alert-warning { background-color: rgba(255,193,7,0.12) !important; color: #ffe6a3 !important; border-color: rgba(255,193,7,0.35) !important; }

/* Forms */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] textarea.form-control {
    background-color: #1e1e1e !important;
    color: #f0f0f0 !important;
    border-color: rgba(255,255,255,0.15) !important;
}
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus { box-shadow: 0 0 0 0.25rem rgba(100,181,246,0.25) !important; border-color: #64B5F6 !important; }
[data-theme="dark"] ::placeholder { color: #b8b8b8 !important; opacity: 1 !important; }

/* Tables */
[data-theme="dark"] .table { color: #e6e6e6 !important; }
[data-theme="dark"] .table-striped>tbody>tr:nth-of-type(odd) { --bs-table-accent-bg: rgba(255,255,255,0.04) !important; color: #e6e6e6 !important; }
[data-theme="dark"] .table-hover tbody tr:hover { background-color: rgba(255,255,255,0.06) !important; }

/* Badges and small chips */
[data-theme="dark"] .badge { filter: brightness(1.05) contrast(1.05); }

/* Home route: improve dark mode contrast for CHOOSE AN OPERATION header */
[data-theme="dark"] .card-header.bg-primary,
[data-theme="dark"] .card-header.bg-primary * {
    color: #ffffff !important;
}

[data-theme="dark"] .card-header.bg-primary { filter: brightness(1.05) contrast(1.1); }

/* Dark mode navbar text visibility */
[data-theme="dark"] .navbar .navbar-brand,
[data-theme="dark"] .navbar .nav-link,
[data-theme="dark"] .navbar .dropdown-toggle,
[data-theme="dark"] .navbar .navbar-toggler-icon::after {
    color: #ffffff !important;
}

/* Strengthen gradient navbar contrast in dark mode */
[data-theme="dark"] .navbar { filter: brightness(1.05) contrast(1.15); }

/* Home: CHOOSE AN OPERATION title contrast in dark mode */
[data-theme="dark"] .card-header.bg-primary h2,
[data-theme="dark"] .card-header.bg-primary .mb-0 {
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0,0,0,0.35);
}

/* Dark mode: ensure button text is readable */
[data-theme="dark"] .btn,
[data-theme="dark"] .btn * {
    color: #ffffff !important;
}
[data-theme="dark"] .btn { text-shadow: 0 1px 2px rgba(0,0,0,0.35); }