/* Custom styles for the Multimedia Processor application */

/* Minimalist Dark Theme Foundation */
:root {
    /* Deep Dark Theme Colors */
    --dark-primary: #1a1a1a;
    --dark-secondary: #202020;
    --dark-tertiary: #2a2a2a;
    --dark-quaternary: #353535;
    --dark-card: #2a2a2a;
    --dark-card-hover: #353535;
    --dark-surface: #404040;
    
    /* High Contrast Text */
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-muted: #b8b8b8;
    --text-accent: #8e8e8e;
    
    /* Muted Accent Colors */
    --accent-blue: #4a90e2;
    --accent-green: #5cb85c;
    --accent-orange: #f0ad4e;
    --accent-red: #d9534f;
    --accent-purple: #8e44ad;
    
    /* Interface Variables */
    --typography-preview-bg: #f8f9fa;
    --code-bg: var(--dark-quaternary);
    --navbar-height: 80px;
    --border-color: #404040;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --hover-overlay: rgba(255, 255, 255, 0.08);
    --card-border-radius: 8px;
    
    /* Typography System */
    --font-primary: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-secondary: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    
    /* Typography Scale */
    --text-xs: 0.75rem;     /* 12px */
    --text-sm: 0.875rem;    /* 14px */
    --text-base: 1rem;      /* 16px */
    --text-lg: 1.125rem;    /* 18px */
    --text-xl: 1.25rem;     /* 20px */
    --text-2xl: 1.5rem;     /* 24px */
    --text-3xl: 1.875rem;   /* 30px */
    --text-4xl: 2.25rem;    /* 36px */
    --text-5xl: 3rem;       /* 48px */
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Line Heights */
    --leading-tight: 1.2;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;
    
    /* Spacing System */
    --space-1: 0.25rem;     /* 4px */
    --space-2: 0.5rem;      /* 8px */
    --space-3: 0.75rem;     /* 12px */
    --space-4: 1rem;        /* 16px */
    --space-5: 1.25rem;     /* 20px */
    --space-6: 1.5rem;      /* 24px */
    --space-8: 2rem;        /* 32px */
    --space-10: 2.5rem;     /* 40px */
    --space-12: 3rem;       /* 48px */
    --space-16: 4rem;       /* 64px */
    --space-20: 5rem;       /* 80px */
    
    /* Form Elements */
    --input-height: 2.75rem;        /* 44px - accessible touch target */
    --input-padding-x: var(--space-4);
    --input-padding-y: var(--space-3);
    --input-border-width: 1px;
    --input-border-radius: 6px;
    --input-font-size: var(--text-base);
    
    /* Button System */
    --btn-height: 2.75rem;           /* 44px - accessible touch target */
    --btn-padding-x: var(--space-6);
    --btn-padding-y: var(--space-3);
    --btn-font-size: var(--text-base);
    --btn-font-weight: var(--font-medium);
    --btn-border-radius: 6px;
    --btn-border-width: 1px;
    
    /* Button Sizes */
    --btn-sm-height: 2.25rem;        /* 36px */
    --btn-sm-padding-x: var(--space-4);
    --btn-sm-padding-y: var(--space-2);
    --btn-sm-font-size: var(--text-sm);
    
    --btn-lg-height: 3.25rem;        /* 52px */
    --btn-lg-padding-x: var(--space-8);
    --btn-lg-padding-y: var(--space-4);
    --btn-lg-font-size: var(--text-lg);
    
    /* Card System */
    --card-padding: var(--space-6);
    --card-padding-sm: var(--space-4);
    --card-padding-lg: var(--space-8);
    --card-border-radius: 8px;
    --card-shadow: 0 4px 12px var(--shadow-color);
    --card-shadow-hover: 0 12px 32px var(--shadow-color);
    
    /* Icon Sizes */
    --icon-xs: 12px;
    --icon-sm: 16px;
    --icon-base: 20px;
    --icon-lg: 24px;
    --icon-xl: 32px;
    --icon-2xl: 48px;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Animation Timing */
    --transition-fast: 150ms;
    --transition-base: 300ms;
    --transition-slow: 500ms;
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-bs-theme="dark"] {
    --typography-preview-bg: #f8f9fa;
    --code-bg: var(--dark-quaternary);
    --bs-body-bg: var(--dark-primary);
    --bs-body-color: var(--text-primary);
    --bs-border-color: var(--border-color);
    --bs-secondary-bg: var(--dark-secondary);
    --bs-tertiary-bg: var(--dark-tertiary);
}

/* Minimalist Navigation Styles */
.navbar {
    background-color: var(--dark-secondary) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 12px var(--shadow-color);
    min-height: var(--navbar-height);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--text-primary) !important;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    color: var(--accent-blue) !important;
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    transition: all 0.3s ease;
    padding: 0.75rem 1.25rem;
    font-weight: 500;
    border-radius: var(--card-border-radius);
}

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

.navbar-nav .dropdown-menu {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 24px var(--shadow-color);
    border-radius: var(--card-border-radius);
    margin-top: 0.5rem;
    padding: 0.5rem;
}

.navbar-nav .dropdown-item {
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    border-radius: calc(var(--card-border-radius) - 2px);
    margin-bottom: 0.25rem;
}

.navbar-nav .dropdown-item:hover {
    background-color: var(--hover-overlay);
    color: var(--text-primary);
    transform: translateX(4px);
}

.navbar-nav .dropdown-item:last-child {
    margin-bottom: 0;
}

.navbar-toggler {
    border-color: var(--border-color);
    padding: 0.5rem 0.75rem;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Search functionality styles */
#search-results {
    z-index: var(--search-z-index);
    border: 1px solid var(--border-color);
    background: var(--dark-card);
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--shadow-color);
}

#search-results a {
    transition: all 0.2s ease-in-out;
    color: var(--text-secondary);
}

#search-results a:hover {
    background-color: var(--hover-overlay);
    color: var(--text-primary);
}

/* Standardized Form Control System */
.form-control,
.form-select {
    /* Base Styles */
    height: var(--input-height);
    padding: var(--input-padding-y) var(--input-padding-x);
    font-family: var(--font-primary);
    font-size: var(--input-font-size);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    
    /* Appearance */
    background-color: var(--dark-tertiary);
    border: var(--input-border-width) solid var(--border-color);
    border-radius: var(--input-border-radius);
    color: var(--text-primary);
    
    /* Interactions */
    transition: all var(--transition-base) var(--ease-out);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--dark-tertiary);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.25rem rgba(74, 144, 226, 0.25);
    outline: none;
    transform: scale(1.01);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 1;
}

.form-control:disabled,
.form-select:disabled {
    background-color: var(--dark-quaternary);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Form Control Sizes */
.form-control-sm,
.form-select-sm {
    height: var(--btn-sm-height);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
}

.form-control-lg,
.form-select-lg {
    height: var(--btn-lg-height);
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-lg);
}

/* Textarea Specific */
textarea.form-control {
    height: auto;
    min-height: calc(var(--input-height) * 2.5);
    resize: vertical;
}

/* File Input */
.form-control[type="file"] {
    padding: var(--space-2) var(--input-padding-x);
    cursor: pointer;
}

.form-control[type="file"]::-webkit-file-upload-button {
    background-color: var(--dark-quaternary);
    border: 1px solid var(--border-color);
    border-radius: calc(var(--input-border-radius) - 1px);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--text-sm);
    margin-right: var(--space-3);
    padding: var(--space-1) var(--space-3);
    transition: all var(--transition-base) var(--ease-out);
}

.form-control[type="file"]::-webkit-file-upload-button:hover {
    background-color: var(--hover-overlay);
    color: var(--text-primary);
}

/* Breadcrumb enhancements */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    font-weight: bold;
    color: var(--bs-secondary);
}

.breadcrumb-item.active {
    font-weight: 500;
}

/* Unified Preview Container System */
.preview-container {
    /* Base Styles */
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-shadow);
    
    /* Layout */
    overflow: hidden;
    position: relative;
    
    /* Animation */
    animation: slideInUp 0.5s ease;
    transition: all var(--transition-base) var(--ease-out);
}

.preview-container:hover {
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-blue);
}

/* Typography Preview Override */
.preview-container.typography-preview {
    background-color: var(--typography-preview-bg) !important;
}

.preview-text {
    padding: var(--space-4);
    text-align: center;
    background-color: var(--typography-preview-bg);
    color: #212529;
    border-radius: calc(var(--card-border-radius) - 1px);
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

/* Font Preview Cards */
.font-preview {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-border-radius);
    transition: all var(--transition-base) var(--ease-out);
    cursor: pointer;
    overflow: hidden;
}

.font-preview:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-blue);
}

.font-preview .font-sample {
    padding: var(--space-6);
    text-align: center;
    background-color: var(--typography-preview-bg);
    color: #212529;
    font-size: var(--text-2xl);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    border-bottom: 1px solid var(--border-color);
}

.font-preview .font-info {
    padding: var(--space-4);
    background-color: var(--dark-card);
}

.font-preview .font-name {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.font-preview .font-category {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin: 0;
}

/* Code and monospace styling */
.font-monospace {
    background-color: var(--code-bg);
    border: 1px solid var(--bs-border-color);
}

/* Enhanced File Upload and Drag & Drop Styling */
.form-control[type="file"] {
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control[type="file"]:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 0.25rem rgba(74, 144, 226, 0.25);
}

/* Universal Drag and Drop Zone */
.file-drop-zone,
.file-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--card-border-radius);
    background-color: var(--dark-tertiary);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.file-drop-zone:hover,
.file-upload-zone:hover {
    border-color: var(--accent-blue);
    background-color: var(--hover-overlay);
    transform: scale(1.01);
}

.file-drop-zone.drag-over,
.file-upload-zone.drag-over {
    border-color: var(--accent-blue);
    background-color: var(--hover-overlay);
    transform: scale(1.02);
    box-shadow: 0 8px 25px var(--shadow-color);
}

.file-drop-zone .upload-content,
.file-upload-zone .upload-content {
    pointer-events: none;
}

.file-drop-zone .upload-content i,
.file-upload-zone .upload-content i {
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.file-drop-zone:hover .upload-content i,
.file-upload-zone:hover .upload-content i {
    color: var(--accent-blue);
    transform: scale(1.1);
}

.file-selected {
    animation: fadeIn 0.5s ease;
}

.file-selected i {
    color: var(--accent-green);
}

/* Processing indicator styling */
.processing-indicator {
    display: none;
    padding: 1rem;
    background-color: var(--dark-card);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--border-color);
}

.processing-indicator.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.processing-indicator .spinner-border {
    color: var(--accent-blue);
}

/* Preview container styling */
.preview-container {
    background-color: var(--dark-card);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow-color);
    overflow: hidden;
    animation: slideInUp 0.5s ease;
}

.preview-container .card-header {
    background-color: var(--dark-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.preview-container img {
    max-width: 100%;
    height: auto;
    border-radius: calc(var(--card-border-radius) - 1px);
}

/* Error message styling */
.error-message {
    animation: slideInDown 0.3s ease;
    border-left: 4px solid var(--accent-red);
}

/* Standardized Range Input (Slider) System */
.form-range {
    width: 100%;
    height: 1.5rem;
    padding: 0;
    background-color: transparent;
    appearance: none;
    cursor: pointer;
}

.form-range:focus {
    outline: none;
}

.form-range::-webkit-slider-track {
    width: 100%;
    height: 6px;
    background-color: var(--dark-quaternary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background-color: var(--accent-blue);
    border: 2px solid var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-base) var(--ease-out);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.form-range::-webkit-slider-thumb:hover {
    background-color: #3a7bd5;
    transform: scale(1.1);
}

.form-range::-moz-range-track {
    width: 100%;
    height: 6px;
    background-color: var(--dark-quaternary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    cursor: pointer;
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background-color: var(--accent-blue);
    border: 2px solid var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-base) var(--ease-out);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.form-range::-moz-range-thumb:hover {
    background-color: #3a7bd5;
    transform: scale(1.1);
}

.form-range:focus::-webkit-slider-thumb {
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.25);
}

.form-range:focus::-moz-range-thumb {
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.25);
}

/* Range Input Labels */
.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-1);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Input Group Styling */
.input-group {
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group .form-control {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
}

.input-group .form-control:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    margin-left: -1px;
}

.input-group .form-control:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--input-padding-y) var(--input-padding-x);
    font-size: var(--input-font-size);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--text-secondary);
    text-align: center;
    background-color: var(--dark-quaternary);
    border: var(--input-border-width) solid var(--border-color);
    border-radius: var(--input-border-radius);
}

.input-group > .input-group-text:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group > .input-group-text:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    margin-left: -1px;
}

/* Sticky sidebar for typography controls */
.sticky-top {
    top: 0rem !important;
}

/* Complete Dark Card System */
.card {
    background-color: var(--dark-card) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: 0 4px 12px var(--shadow-color) !important;
    transition: all 0.3s ease;
    border-radius: var(--card-border-radius) !important;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px var(--shadow-color) !important;
    background-color: var(--dark-card-hover) !important;
    border-color: var(--accent-blue) !important;
}

.card-body {
    color: var(--text-primary);
    padding: 1.5rem;
}

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

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

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

/* Tool card specific styling */
.tool-card {
    transition: all 0.3s ease;
    background-color: var(--dark-card) !important;
}

.tool-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px var(--shadow-color) !important;
    background-color: var(--dark-card-hover) !important;
}

/* Eliminate ALL bright elements */
.bg-white {
    background-color: var(--dark-card) !important;
}

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

.bg-secondary {
    background-color: var(--dark-quaternary) !important;
}

.badge {
    border: none !important;
    font-weight: 500;
}

.badge.bg-danger {
    background-color: var(--accent-red) !important;
    color: var(--text-primary) !important;
}

.badge.bg-success {
    background-color: var(--accent-green) !important;
    color: var(--text-primary) !important;
}

.badge.bg-warning {
    background-color: var(--accent-orange) !important;
    color: var(--text-primary) !important;
}

.badge.bg-info {
    background-color: var(--accent-purple) !important;
    color: var(--text-primary) !important;
}

.badge.bg-primary {
    background-color: var(--accent-blue) !important;
    color: var(--text-primary) !important;
}

/* Force dark backgrounds on all potential light elements */
.bg-gradient {
    background: linear-gradient(135deg, var(--dark-tertiary) 0%, var(--dark-quaternary) 100%) !important;
}

.alert {
    background-color: var(--dark-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

.table-dark {
    background-color: var(--dark-card) !important;
}

.modal-content {
    background-color: var(--dark-card) !important;
    border-color: var(--border-color) !important;
}

/* Custom alert styles for better visibility */
.alert {
    border: none;
    border-left: 4px solid;
}

.alert-info {
    border-left-color: var(--bs-info);
}

.alert-warning {
    border-left-color: var(--bs-warning);
}

.alert-success {
    border-left-color: var(--bs-success);
}

.alert-danger {
    border-left-color: var(--bs-danger);
}

/* Standardized Button System */
.btn {
    /* Base Button Styles */
    height: var(--btn-height);
    padding: var(--btn-padding-y) var(--btn-padding-x);
    font-family: var(--font-primary);
    font-size: var(--btn-font-size);
    font-weight: var(--btn-font-weight);
    line-height: 1;
    border-radius: var(--btn-border-radius);
    border-width: var(--btn-border-width);
    
    /* Interactions */
    transition: all var(--transition-base) var(--ease-out);
    cursor: pointer;
    user-select: none;
    
    /* Layout */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    text-decoration: none;
    
    /* Accessibility */
    min-width: 44px;
    min-height: 44px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
}

.btn:active {
    transform: translateY(0);
    transition: all var(--transition-fast) var(--ease-in-out);
}

.btn:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Button Sizes */
.btn-sm {
    height: var(--btn-sm-height);
    padding: var(--btn-sm-padding-y) var(--btn-sm-padding-x);
    font-size: var(--btn-sm-font-size);
    min-width: 36px;
    min-height: 36px;
}

.btn-lg {
    height: var(--btn-lg-height);
    padding: var(--btn-lg-padding-y) var(--btn-lg-padding-x);
    font-size: var(--btn-lg-font-size);
    min-width: 52px;
    min-height: 52px;
}

/* Button Variants */
.btn-primary {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.btn-primary:hover {
    background-color: #3a7bd5;
    border-color: #3a7bd5;
    color: var(--text-primary);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn-outline-primary:hover {
    background-color: var(--accent-blue);
    color: var(--text-primary);
    border-color: var(--accent-blue);
}

.btn-success {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
    color: var(--text-primary);
}

.btn-success:hover {
    background-color: #4a9a4a;
    border-color: #4a9a4a;
    color: var(--text-primary);
}

.btn-warning {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
    color: var(--text-primary);
}

.btn-warning:hover {
    background-color: #e8983e;
    border-color: #e8983e;
    color: var(--text-primary);
}

.btn-info {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.btn-info:hover {
    background-color: #7d3c98;
    border-color: #7d3c98;
    color: var(--text-primary);
}

.btn-danger {
    background-color: var(--accent-red);
    border-color: var(--accent-red);
    color: var(--text-primary);
}

.btn-danger:hover {
    background-color: #c7443f;
    border-color: #c7443f;
    color: var(--text-primary);
}

.btn-secondary {
    background-color: var(--dark-tertiary);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background-color: var(--dark-quaternary);
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.btn-outline-secondary {
    background-color: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-outline-secondary:hover {
    background-color: var(--dark-tertiary);
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.btn-light {
    background-color: var(--text-secondary);
    border-color: var(--text-secondary);
    color: var(--dark-primary);
}

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

.btn-outline-light {
    background-color: transparent;
    color: var(--text-secondary);
    border-color: var(--text-secondary);
}

.btn-outline-light:hover {
    background-color: var(--text-secondary);
    color: var(--dark-primary);
    border-color: var(--text-secondary);
}

/* Loading states */
.btn.loading {
    position: relative;
    color: transparent !important;
}

.btn.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Smooth Transitions and Micro-interactions */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Page load animation */
.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* Staggered animations for cards */
.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }

/* Smooth icon transitions */
i[data-feather] {
    transition: all 0.3s ease;
}

.card:hover i[data-feather] {
    transform: scale(1.1);
}

/* Button press effect */
.btn:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

/* Dropdown slide animation */
.dropdown-menu {
    transform: translateY(-10px);
    opacity: 0;
    transition: all 0.3s ease;
}

.dropdown-menu.show {
    transform: translateY(0);
    opacity: 1;
}

/* Search results animation */
#search-results {
    transition: all 0.3s ease;
    transform: translateY(-10px);
}

#search-results:not(.d-none) {
    transform: translateY(0);
}

/* Navbar brand hover effect */
.navbar-brand:hover {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

/* Loading states with smooth transitions */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 26, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Tooltip-like hover effects */
.tooltip-hover {
    position: relative;
    overflow: visible;
}

.tooltip-hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-card);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.tooltip-hover:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* Enhanced form interactions */
.form-control {
    transition: all 0.3s ease;
}

.form-control:focus {
    transform: scale(1.02);
}

/* Ripple effect for buttons */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* Responsive adjustments with smooth transitions */
@media (max-width: 768px) {
    .sticky-top {
        position: relative !important;
        top: auto !important;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem !important;
    }
    
    /* Mobile-optimized animations */
    .card:hover {
        transform: translateY(-2px);
    }
    
    .tool-card:hover {
        transform: translateY(-2px);
    }
    
    /* Reduce animation intensity on mobile */
    .btn:hover {
        transform: translateY(-1px);
    }
}

/* Dark mode specific adjustments */
[data-bs-theme="dark"] .preview-container {
    background-color: var(--typography-preview-bg) !important;
    color: #212529 !important;
}

[data-bs-theme="dark"] .preview-text {
    color: inherit !important;
}

/* Global dark theme enforcement */
body {
    background-color: var(--dark-primary) !important;
    color: var(--text-primary) !important;
}

/* Ensure no bright backgrounds exist */
.bg-primary {
    background-color: var(--accent-blue) !important;
}

.bg-success {
    background-color: var(--accent-green) !important;
}

.bg-warning {
    background-color: var(--accent-orange) !important;
}

.bg-info {
    background-color: var(--accent-purple) !important;
}

.bg-danger {
    background-color: var(--accent-red) !important;
}

.text-primary {
    color: var(--accent-blue) !important;
}

.text-success {
    color: var(--accent-green) !important;
}

.text-warning {
    color: var(--accent-orange) !important;
}

.text-info {
    color: var(--accent-purple) !important;
}

.text-danger {
    color: var(--accent-red) !important;
}

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

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

/* Override any Bootstrap light backgrounds */
.bg-light,
.bg-white,
.bg-transparent {
    background-color: var(--dark-card) !important;
}

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

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

/* Remove bright subtle backgrounds */
.bg-primary-subtle,
.bg-secondary-subtle,
.bg-success-subtle,
.bg-danger-subtle,
.bg-warning-subtle,
.bg-info-subtle,
.bg-light-subtle,
.bg-dark-subtle {
    background-color: var(--dark-tertiary) !important;
}

/* Fix any remaining light elements */
.list-group-item {
    background-color: var(--dark-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

.breadcrumb {
    background-color: transparent !important;
}

.breadcrumb-item a {
    color: var(--text-secondary) !important;
}

.breadcrumb-item a:hover {
    color: var(--text-primary) !important;
}

/* Enhanced Accessibility and High Contrast Support */
.form-control:focus,
.form-select:focus,
.form-range:focus {
    outline: 2px solid var(--accent-blue) !important;
    outline-offset: 2px;
    box-shadow: 0 0 0 0.25rem rgba(74, 144, 226, 0.25);
    border-color: var(--accent-blue) !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid var(--text-primary) !important;
        background-color: #000000 !important;
    }
    
    .btn {
        border-width: 2px;
    }
    
    .text-muted {
        color: var(--text-primary) !important;
    }
    
    .navbar {
        background-color: #000000 !important;
    }
    
    body {
        background-color: #000000 !important;
    }
    
    .card-body {
        color: var(--text-primary) !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .card,
    .btn,
    .font-preview,
    .tool-card {
        transition: none;
    }
    
    .btn.loading::after {
        animation: none;
    }
    
    .card:hover,
    .tool-card:hover {
        transform: none;
    }
    
    .fade-in {
        animation: none;
    }
}

/* Enhanced responsive design with accessibility */
@media (max-width: 991px) {
    .navbar-nav .dropdown-menu {
        background-color: var(--dark-secondary);
        border: 1px solid var(--border-color);
        box-shadow: 0 4px 12px var(--shadow-color);
        margin-top: 0;
        border-radius: var(--card-border-radius);
    }
    
    .navbar-collapse {
        background-color: var(--dark-secondary);
        border-top: 1px solid var(--border-color);
        margin-top: 1rem;
        padding-top: 1rem;
        border-radius: 0 0 var(--card-border-radius) var(--card-border-radius);
    }
    
    .navbar-nav .nav-link {
        padding: 1rem 1.25rem;
        font-size: 1.1rem;
    }
}

@media (max-width: 767px) {
    .display-4 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1.1rem;
        min-height: 48px;
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    .tool-card .card-body {
        padding: 1.5rem 1.25rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}

@media (max-width: 575px) {
    .container {
        padding: 0 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
        min-height: 44px;
    }
    
    .navbar-nav .nav-link {
        padding: 0.875rem 1rem;
        font-size: 1rem;
    }
    
    .lead {
        font-size: 1.1rem;
    }
}

/* Focus indicators for better accessibility */
.btn:focus,
.nav-link:focus,
.dropdown-item:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent-blue);
    color: var(--text-primary);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    font-weight: 600;
    border: 2px solid var(--text-primary);
}

.skip-link:focus {
    top: 6px;
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

/* Ensure all interactive elements have proper focus indicators */
a:focus,
button:focus,
.btn:focus,
.nav-link:focus,
.dropdown-item:focus,
.card:focus {
    outline: 2px solid var(--accent-blue) !important;
    outline-offset: 2px;
}

/* Ensure text remains readable at all zoom levels */
@media (max-width: 320px) {
    .card-body {
        padding: 0.75rem;
    }
    
    .btn {
        font-size: 0.875rem;
        padding: 0.5rem 0.75rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}

/* Ensure minimum touch target size */
.btn,
.nav-link,
.dropdown-item {
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* High contrast text for better readability */
.card-title,
.card-text,
.nav-link,
.dropdown-item {
    text-shadow: 0 0 1px rgba(0, 0, 0, 0.5);
}

/* Additional Dark Theme Overrides */
.alert {
    background-color: var(--dark-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

.modal-content {
    background-color: var(--dark-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

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

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

.table-dark {
    background-color: var(--dark-card) !important;
    border-color: var(--border-color) !important;
}

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

.bg-white {
    background-color: var(--dark-card) !important;
}

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

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

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

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

.breadcrumb-item a {
    color: var(--text-secondary) !important;
}

.breadcrumb-item a:hover {
    color: var(--text-primary) !important;
}

/* Remove bright backgrounds and ensure dark theme consistency */
.bg-gradient {
    background: linear-gradient(135deg, var(--dark-tertiary) 0%, var(--dark-quaternary) 100%) !important;
}

.bg-primary-subtle {
    background-color: rgba(74, 144, 226, 0.1) !important;
}

.bg-success-subtle {
    background-color: rgba(92, 184, 92, 0.1) !important;
}

.bg-warning-subtle {
    background-color: rgba(240, 173, 78, 0.1) !important;
}

.bg-info-subtle {
    background-color: rgba(142, 68, 173, 0.1) !important;
}

.bg-danger-subtle {
    background-color: rgba(217, 83, 79, 0.1) !important;
}

/* Print styles */
@media print {
    .navbar,
    .btn,
    footer,
    .sticky-top {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        box-shadow: none !important;
    }
    
    .preview-container {
        background: white !important;
        color: black !important;
    }
}

/* ==================================================
   UNIFIED DESIGN SYSTEM - FINAL ADDITIONS
   ================================================== */

/* Standardized Typography Hierarchy */
h1, .h1 {
    font-family: var(--font-primary);
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--text-primary) !important;
    margin-bottom: var(--space-6);
}

h2, .h2 {
    font-family: var(--font-primary);
    font-size: var(--text-4xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--text-primary) !important;
    margin-bottom: var(--space-5);
}

h3, .h3 {
    font-family: var(--font-primary);
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--text-primary) !important;
    margin-bottom: var(--space-4);
}

h4, .h4 {
    font-family: var(--font-primary);
    font-size: var(--text-2xl);
    font-weight: var(--font-medium);
    line-height: var(--leading-normal);
    color: var(--text-primary) !important;
    margin-bottom: var(--space-4);
}

h5, .h5 {
    font-family: var(--font-primary);
    font-size: var(--text-xl);
    font-weight: var(--font-medium);
    line-height: var(--leading-normal);
    color: var(--text-primary) !important;
    margin-bottom: var(--space-3);
}

h6, .h6 {
    font-family: var(--font-primary);
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    line-height: var(--leading-normal);
    color: var(--text-primary) !important;
    margin-bottom: var(--space-3);
}

/* Enhanced Paragraph Styling */
p {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

p:last-child {
    margin-bottom: 0;
}

/* Enhanced Link Styling */
a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: all var(--transition-base) var(--ease-out);
}

a:hover {
    color: #3a7bd5;
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
    border-radius: var(--space-1);
}

/* Standardized Spacing Utilities */
.m-1 { margin: var(--space-1) !important; }
.m-2 { margin: var(--space-2) !important; }
.m-3 { margin: var(--space-3) !important; }
.m-4 { margin: var(--space-4) !important; }
.m-5 { margin: var(--space-5) !important; }
.m-6 { margin: var(--space-6) !important; }
.m-8 { margin: var(--space-8) !important; }

.p-1 { padding: var(--space-1) !important; }
.p-2 { padding: var(--space-2) !important; }
.p-3 { padding: var(--space-3) !important; }
.p-4 { padding: var(--space-4) !important; }
.p-5 { padding: var(--space-5) !important; }
.p-6 { padding: var(--space-6) !important; }
.p-8 { padding: var(--space-8) !important; }

/* Margin utilities */
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-5) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mt-8 { margin-top: var(--space-8) !important; }

.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }

/* Padding utilities */
.pt-1 { padding-top: var(--space-1) !important; }
.pt-2 { padding-top: var(--space-2) !important; }
.pt-3 { padding-top: var(--space-3) !important; }
.pt-4 { padding-top: var(--space-4) !important; }
.pt-5 { padding-top: var(--space-5) !important; }
.pt-6 { padding-top: var(--space-6) !important; }
.pt-8 { padding-top: var(--space-8) !important; }

.pb-1 { padding-bottom: var(--space-1) !important; }
.pb-2 { padding-bottom: var(--space-2) !important; }
.pb-3 { padding-bottom: var(--space-3) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }
.pb-5 { padding-bottom: var(--space-5) !important; }
.pb-6 { padding-bottom: var(--space-6) !important; }
.pb-8 { padding-bottom: var(--space-8) !important; }

/* Gap utilities */
.gap-1 { gap: var(--space-1) !important; }
.gap-2 { gap: var(--space-2) !important; }
.gap-3 { gap: var(--space-3) !important; }
.gap-4 { gap: var(--space-4) !important; }
.gap-5 { gap: var(--space-5) !important; }
.gap-6 { gap: var(--space-6) !important; }
.gap-8 { gap: var(--space-8) !important; }

/* Text utilities */
.text-xs { font-size: var(--text-xs) !important; }
.text-sm { font-size: var(--text-sm) !important; }
.text-base { font-size: var(--text-base) !important; }
.text-lg { font-size: var(--text-lg) !important; }
.text-xl { font-size: var(--text-xl) !important; }
.text-2xl { font-size: var(--text-2xl) !important; }
.text-3xl { font-size: var(--text-3xl) !important; }

.font-light { font-weight: var(--font-light) !important; }
.font-normal { font-weight: var(--font-normal) !important; }
.font-medium { font-weight: var(--font-medium) !important; }
.font-semibold { font-weight: var(--font-semibold) !important; }
.font-bold { font-weight: var(--font-bold) !important; }

/* Enhanced Container System */
.container-fluid {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.section-padding {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.section-padding-sm {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
}

/* Enhanced Grid System */
.row {
    margin-left: calc(-1 * var(--space-3));
    margin-right: calc(-1 * var(--space-3));
}

.row > * {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
}

/* Page-specific Responsive Design */
@media (max-width: 768px) {
    h1, .h1 {
        font-size: var(--text-4xl);
    }
    
    h2, .h2 {
        font-size: var(--text-3xl);
    }
    
    h3, .h3 {
        font-size: var(--text-2xl);
    }
    
    .section-padding {
        padding-top: var(--space-8);
        padding-bottom: var(--space-8);
    }
    
    .card-body {
        padding: var(--card-padding-sm);
    }
}

@media (max-width: 480px) {
    .container-fluid {
        padding-left: var(--space-3);
        padding-right: var(--space-3);
    }
    
    h1, .h1 {
        font-size: var(--text-3xl);
    }
    
    h2, .h2 {
        font-size: var(--text-2xl);
    }
    
    .section-padding {
        padding-top: var(--space-6);
        padding-bottom: var(--space-6);
    }
}

/* Design System Complete - All elements now follow consistent styling */