/* =============================================
   ACL & Firewall Rule Simulator - Styles
   ============================================= */

:root {
    /* Accent Palette - Cisco Light Blue */
    --primary-color: #049fd9;
    --primary-dark: #0078a8;
    --primary-light: #00bceb;
    
    /* Success - Vibrant green matching Cisco blue saturation */
    --success-color: #2ed573;
    --success-dark: #26ab5f;
    --success-light: #7bed9f;
    --success-bg: #e6f9ed;
    
    /* Danger - Vibrant coral-red matching Cisco blue saturation */
    --danger-color: #ff6b81;
    --danger-dark: #eb4d5c;
    --danger-light: #ff9dad;
    --danger-bg: #ffe8eb;
    
    --warning-color: #ffa502;
    --warning-dark: #e69500;
    --warning-light: #ffcc66;
    --warning-bg: #fff5e0;
    
    --info-color: #00bceb;
    --info-dark: #049fd9;
    --info-light: #5ce1ff;
    
    /* Neutral Tokens (dark default) */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Background & Surface (dark theme) */
    --bg-primary: #000000;
    --bg-secondary: #0d1117;
    --bg-tertiary: #161b22;
    --surface: #0d1117;
    --surface-hover: #1f2933;
    
    /* Text Colors (dark theme) */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Border Colors (dark theme) */
    --border-color: #222831;
    --border-light: #323b46;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius - Sharp edges */
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;
    --radius-xl: 0;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.35), 0 2px 4px -1px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.35), 0 4px 6px -2px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.35), 0 10px 10px -5px rgba(0, 0, 0, 0.25);
    
    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7fb;
    --bg-tertiary: #edf1f7;
    --surface: #ffffff;
    --surface-hover: #f3f5fb;
    
    --text-primary: #0f172a;
    --text-secondary: #1f2937;
    --text-muted: #475569;
    
    --border-color: #e2e8f0;
    --border-light: #cbd5e1;
    
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.12), 0 2px 4px -1px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.14), 0 4px 6px -2px rgba(15, 23, 42, 0.10);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.16), 0 10px 10px -5px rgba(15, 23, 42, 0.12);
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo i {
    color: var(--primary-color);
    font-size: 2rem;
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    object-fit: contain;
}

.animated-title {
    position: relative;
    color: var(--text-primary);
    overflow: hidden;
}

.animated-title::before {
    content: 'ACL & Firewall Rule Simulator';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light), var(--primary-color));
    background-size: 200% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: text-reveal 2s ease-out forwards;
}

@keyframes text-reveal {
    0% {
        background-position: 200% 0;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        background-position: 0% 0;
        opacity: 1;
    }
}

.header-subtitle {
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    font-size: 0.95rem;
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    flex: 1;
    min-width: 0;
    align-items: start;
}

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .panel-header {
        padding: var(--spacing-sm) var(--spacing-md);
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .panel-header h2 {
        font-size: 1rem;
        justify-content: center;
    }
    
    .panel-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .panel-body {
        padding: var(--spacing-md);
    }
    
    .panel-section {
        padding: var(--spacing-md);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.875rem;
    }
    
    .form-row {
        gap: var(--spacing-sm);
    }
    
    .code-editor-container {
        min-height: 300px;
    }
    
    .code-editor {
        min-height: 280px;
        font-size: 0.8rem;
    }
    
    .line-numbers {
        width: 2.5rem;
        padding: var(--spacing-md) var(--spacing-xs);
        font-size: 0.8rem;
    }
}

/* Panel Styles */
.panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.panel-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.panel-header h2 i {
    color: var(--primary-color);
}

.panel-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.panel-body {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: auto;
}

.panel-section {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.panel-section h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--surface-hover);
    border-color: var(--primary-color);
}

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

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

/* Dropdown */
.sample-dropdown {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sample-dropdown:hover {
    border-color: var(--primary-color);
}

.sample-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Code Editor with Syntax Highlighting */
.code-editor-container {
    position: relative;
    min-height: 400px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.code-editor-container:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Line numbers column */
.line-numbers {
    position: absolute;
    top: 0;
    left: 0;
    width: 3rem;
    height: 100%;
    padding: var(--spacing-md) var(--spacing-sm);
    background: var(--bg-tertiary);
    border-right: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-muted);
    text-align: right;
    user-select: none;
    overflow: hidden;
    z-index: 2;
}

.line-numbers span {
    display: block;
}

/* Syntax highlight overlay - positioned behind textarea */
.code-editor-highlight {
    position: absolute;
    top: 0;
    left: 3rem;
    right: 0;
    bottom: 0;
    padding: var(--spacing-md);
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: auto;
    pointer-events: none;
    z-index: 1;
    background: transparent;
}

.code-editor-highlight code {
    display: block;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    background: transparent;
    margin: 0;
    padding: 0;
}

/* Textarea - transparent text, visible caret */
.code-editor {
    position: absolute;
    top: 0;
    left: 3rem;
    right: 0;
    bottom: 0;
    width: calc(100% - 3rem);
    height: 100%;
    min-height: 400px;
    padding: var(--spacing-md);
    margin: 0;
    background: transparent;
    border: none;
    color: transparent;
    caret-color: var(--primary-color);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    resize: none;
    overflow: auto;
    z-index: 3;
}

.code-editor:focus {
    outline: none;
}

.code-editor::placeholder {
    color: var(--text-muted);
}

/* Syntax Highlighting Token Colors */
.hl-comment { color: #6a737d; font-style: italic; }
.hl-keyword { color: #ff7b72; font-weight: 500; }
.hl-action-permit { color: #7ee787; font-weight: 600; }
.hl-action-deny { color: #ff7b72; font-weight: 600; }
.hl-protocol { color: #79c0ff; }
.hl-ip { color: #ffa657; }
.hl-port { color: #d2a8ff; }
.hl-number { color: #a5d6ff; }
.hl-acl-name { color: #7ee787; font-weight: 500; }
.hl-object-group { color: #f778ba; }
.hl-time-range { color: #ffc857; }
.hl-any { color: #79c0ff; font-style: italic; }
.hl-host { color: #ffa657; font-weight: 500; }
.hl-log { color: #8b949e; }
.hl-established { color: #a371f7; }
.hl-operator { color: #79c0ff; }

/* Light theme syntax colors */
[data-theme="light"] .hl-comment { color: #6a737d; }
[data-theme="light"] .hl-keyword { color: #cf222e; }
[data-theme="light"] .hl-action-permit { color: #116329; }
[data-theme="light"] .hl-action-deny { color: #cf222e; }
[data-theme="light"] .hl-protocol { color: #0550ae; }
[data-theme="light"] .hl-ip { color: #953800; }
[data-theme="light"] .hl-port { color: #8250df; }
[data-theme="light"] .hl-number { color: #0550ae; }
[data-theme="light"] .hl-acl-name { color: #116329; }
[data-theme="light"] .hl-object-group { color: #a475f9; }
[data-theme="light"] .hl-time-range { color: #9a6700; }
[data-theme="light"] .hl-any { color: #0550ae; }
[data-theme="light"] .hl-host { color: #953800; }
[data-theme="light"] .hl-log { color: #57606a; }
[data-theme="light"] .hl-established { color: #8250df; }
[data-theme="light"] .hl-operator { color: #0550ae; }

/* Shadowed Rule Styles */
.rule-item.shadowed {
    opacity: 0.6;
    background: rgba(255, 213, 128, 0.15);
    border-left-color: #f5c77e !important;
    position: relative;
}

.rule-item.shadowed::after {
    content: 'SHADOWED';
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.65rem;
    padding: 2px 6px;
    background: #fde8c4;
    color: #8b6914;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.shadowed-badge {
    color: #d4a24a !important;
}

.shadowed-rules-warning {
    margin-bottom: var(--spacing-lg);
    border: 1px solid #f5d89a;
    border-radius: var(--radius-md);
    background: rgba(253, 245, 230, 0.95);
    overflow: hidden;
}

.shadowed-rules-warning .warning-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: #fde8c4;
    color: #8b6914;
    font-weight: 600;
}

.shadowed-rules-warning .warning-body {
    padding: var(--spacing-md);
}

.shadowed-rules-warning p {
    margin-bottom: var(--spacing-sm);
    color: #6b5a2e;
    font-size: 0.875rem;
}

.shadowed-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.shadowed-list li {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background: #fff8ed;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    border: 1px solid #f5e6c8;
}

.shadowed-list li code {
    display: block;
    margin: var(--spacing-xs) 0;
    padding: var(--spacing-xs);
    background: #fffdf8;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #4a3f1f;
    border: 1px solid #f0ddb8;
}

.shadowed-list li small {
    color: #a07d2e;
    font-style: italic;
}

/* Dark theme adjustments for shadowed rules */
[data-theme="dark"] .shadowed-rules-warning {
    background: rgba(50, 42, 25, 0.95);
    border-color: #5c4d2a;
}

[data-theme="dark"] .shadowed-rules-warning .warning-header {
    background: #4a3f24;
    color: #f5d89a;
}

[data-theme="dark"] .shadowed-rules-warning p {
    color: #d4c9a8;
}

[data-theme="dark"] .shadowed-list li {
    background: #3a3220;
    border-color: #4a4028;
}

[data-theme="dark"] .shadowed-list li code {
    background: #2a2518;
    color: #e8dfc8;
    border-color: #4a4028;
}

[data-theme="dark"] .shadowed-list li small {
    color: #d4b86a;
}

/* Validation Result */
.validation-result {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.validation-result.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
}

.validation-result.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
}

.validation-result .validation-icon {
    font-size: 1.25rem;
}

.validation-result.success .validation-icon::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--success-color);
}

.validation-result.error .validation-icon::before {
    content: '\f057';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--danger-color);
}

/* Parsed Rules Container */
.parsed-rules-container {
    min-height: 150px;
    overflow-y: auto;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
    text-align: center;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ACL Group */
.acl-group {
    margin-bottom: var(--spacing-lg);
}

.acl-group-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--primary-light);
}

.acl-type-badge {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    background: var(--primary-color);
    color: white;
    text-transform: uppercase;
}

.platform-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    background: var(--accent-purple);
    color: white;
    text-transform: uppercase;
    margin-left: 4px;
}

.ipv6-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    background: var(--accent-orange);
    color: white;
    text-transform: uppercase;
    margin-left: 4px;
}

.rule-badge {
    font-size: 0.75rem;
    padding: 0 4px;
    cursor: help;
    opacity: 0.8;
}

.rule-badge:hover {
    opacity: 1;
}

.platform-dropdown {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.platform-dropdown:hover {
    border-color: var(--primary-color);
}

.platform-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(4, 159, 217, 0.2);
}

/* Object groups and time ranges sections */
.object-groups-section .acl-group-header i,
.time-ranges-section .acl-group-header i {
    color: var(--accent-purple);
}

.time-ranges-section .acl-group-header i {
    color: var(--accent-orange);
}

/* Rule Item */
.rule-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.rule-item:hover {
    background: var(--bg-tertiary);
}

.rule-item.permit {
    border-left-color: var(--success-color);
}

.rule-item.deny {
    border-left-color: var(--danger-color);
}

.rule-number {
    min-width: 30px;
    color: var(--text-muted);
    font-weight: 600;
}

.rule-text {
    flex: 1;
    word-break: break-word;
}

.rule-action {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.rule-action.permit {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-light);
}

.rule-action.deny {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-light);
}

/* Packet Form */
.packet-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-section h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:invalid {
    border-color: var(--danger-color);
}

/* Checkbox Group */
.checkbox-group {
    grid-column: span 2;
    margin-top: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* Simulation Result */
.simulation-result {
    margin-top: var(--spacing-xl);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.result-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
}

.result-badge.permit {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-light);
    border: 2px solid var(--success-color);
}

.result-badge.deny {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-light);
    border: 2px solid var(--danger-color);
}

.matching-rule {
    flex: 1;
    min-width: 200px;
}

.matching-rule code {
    display: block;
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    word-break: break-word;
}

.result-body {
    padding: var(--spacing-lg);
}

.result-section {
    margin-bottom: var(--spacing-lg);
}

.result-section:last-child {
    margin-bottom: 0;
}

.result-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.result-section h4 i {
    color: var(--primary-color);
}

/* Explanation Content */
.explanation-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    font-size: 0.9rem;
    line-height: 1.8;
    white-space: pre-wrap;
}

.explanation-content code {
    display: block;
    background: var(--bg-tertiary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    margin: var(--spacing-sm) 0;
}

/* Evaluation Steps */
.evaluation-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.eval-step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.eval-step:hover {
    border-color: var(--border-light);
}

.eval-step.matched {
    border-color: var(--success-color);
    background: rgba(16, 185, 129, 0.05);
}

.eval-step.not-matched {
    opacity: 0.6;
}

.eval-step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 0;
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.eval-step.matched .eval-step-number {
    background: var(--success-color);
    color: white;
}

.eval-step-content {
    flex: 1;
    min-width: 0;
}

.eval-step-rule {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    word-break: break-word;
}

.eval-step-reason {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.eval-step-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    flex-shrink: 0;
}

.eval-step.matched .eval-step-status {
    color: var(--success-color);
}

.eval-step.not-matched .eval-step-status {
    color: var(--text-muted);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-xl);
}

.footer-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-top {
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    font-size: 0.8rem;
    color: var(--text-muted);
    gap: var(--spacing-sm);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.footer-logo {
    width: 1.25rem;
    height: 1.25rem;
    opacity: 0.8;
}

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

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

.footer-author a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.footer-author a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-center {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-muted);
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.portfolio-link:hover {
    color: var(--primary-light);
}

.portfolio-link i {
    font-size: 0.7rem;
    opacity: 0.7;
}

.footer-content .separator {
    color: var(--border-color);
}

/* Theme Toggle - Beautiful Sun/Moon Toggle */
.theme-toggle-container {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.toggle-checkbox {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.toggle-slot {
    position: relative;
    height: 32px;
    width: 64px;
    border: 2px solid var(--border-light);
    border-radius: 32px;
    background-color: #f1f5f9;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
    transition: background-color 300ms ease, border-color 300ms ease;
}

.toggle-checkbox:checked ~ .toggle-slot {
    background-color: #1e293b;
    border-color: #475569;
}

.toggle-button {
    position: absolute;
    top: 3px;
    left: 34px;
    height: 22px;
    width: 22px;
    border-radius: 50%;
    background-color: #ffeccf;
    box-shadow: inset 0px 0px 0px 3px #ffbb52;
    transition: background-color 300ms ease, box-shadow 300ms ease, left 400ms cubic-bezier(.26, 2, .46, .71);
}

.toggle-checkbox:checked ~ .toggle-slot .toggle-button {
    background-color: #485367;
    box-shadow: inset 0px 0px 0px 3px white;
    left: 3px;
}

/* Iconify icon sizing */
.sun-icon,
.moon-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.sun-icon-wrapper {
    position: absolute;
    height: 20px;
    width: 20px;
    top: 4px;
    left: 6px;
    opacity: 1;
    transform: rotate(15deg);
    transform-origin: center center;
    transition: opacity 200ms ease, transform 400ms cubic-bezier(.26, 2, .46, .71);
    color: #ffbb52;
}

.toggle-checkbox:checked ~ .toggle-slot .sun-icon-wrapper {
    opacity: 0;
    transform: rotate(0deg) translateX(8px);
}

.moon-icon-wrapper {
    position: absolute;
    height: 20px;
    width: 20px;
    top: 4px;
    right: 6px;
    opacity: 0;
    transform: rotate(0deg);
    transform-origin: center center;
    transition: opacity 200ms ease, transform 400ms cubic-bezier(.26, 2.5, .46, .71);
    color: white;
}

.toggle-checkbox:checked ~ .toggle-slot .moon-icon-wrapper {
    opacity: 1;
    transform: rotate(-15deg);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-primary);
}

.loading-spinner i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: toastSlideIn 0.3s ease;
    min-width: 280px;
    max-width: 400px;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}

.toast.info {
    border-left: 4px solid var(--info-color);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast.success .toast-icon {
    color: var(--success-color);
}

.toast.error .toast-icon {
    color: var(--danger-color);
}

.toast.warning .toast-icon {
    color: var(--warning-color);
}

.toast.info .toast-icon {
    color: var(--info-color);
}

.toast-message {
    flex: 1;
    font-size: 0.875rem;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* Hidden Utility */
.hidden {
    display: none !important;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
    border-radius: 0;
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 0;
}

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

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .header {
        padding: var(--spacing-md);
        text-align: center;
    }
    
    .logo {
        font-size: 1.25rem;
        justify-content: center;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .logo-icon {
        width: 2rem;
        height: 2rem;
    }
    
    .header-subtitle {
        font-size: 0.85rem;
    }
    
    .main-content {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .panel-header {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .panel-header h2 {
        font-size: 1rem;
    }
    
    .panel-actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }
    
    .sample-dropdown {
        width: 100%;
        max-width: 100%;
    }
    
    .panel-body {
        padding: var(--spacing-md);
    }
    
    .code-editor {
        min-height: 200px;
        font-size: 0.8rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .result-badge {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .footer {
        padding: var(--spacing-md);
    }
    
    .footer-top {
        justify-content: center;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .footer-divider {
        display: none;
    }
    
    .footer-left {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .footer-content .separator {
        display: none;
    }
    
    .toggle-slot {
        height: 28px;
        width: 56px;
    }
    
    .toggle-button {
        height: 18px;
        width: 18px;
        top: 3px;
        left: 30px;
    }
    
    .toggle-checkbox:checked ~ .toggle-slot .toggle-button {
        left: 3px;
    }
    
    .sun-icon-wrapper,
    .moon-icon-wrapper {
        height: 16px;
        width: 16px;
        top: 4px;
    }
    
    .sun-icon-wrapper {
        left: 5px;
    }
    
    .moon-icon-wrapper {
        right: 5px;
    }
}

@media (max-width: 480px) {
    .logo span {
        font-size: 1rem;
    }
    
    .header-subtitle {
        font-size: 0.75rem;
    }
    
    .main-content {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .panel {
        border-radius: var(--radius-md);
    }
    
    .panel-header h2 {
        font-size: 0.9rem;
    }
    
    .panel-body {
        padding: var(--spacing-sm);
    }
    
    .panel-section {
        padding: var(--spacing-sm);
    }
    
    .code-editor-container {
        min-height: 250px;
    }
    
    .code-editor {
        min-height: 230px;
        font-size: 0.75rem;
        padding: var(--spacing-sm);
        padding-left: calc(2.5rem + var(--spacing-sm));
    }
    
    .line-numbers {
        width: 2.5rem;
        padding: var(--spacing-sm) var(--spacing-xs);
        font-size: 0.75rem;
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.8rem;
    }
    
    .sample-dropdown,
    .platform-dropdown {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .form-group input,
    .form-group select {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .rule-item {
        padding: var(--spacing-sm);
        font-size: 0.8rem;
    }
    
    .rule-number {
        min-width: 2rem;
        font-size: 0.75rem;
    }
    
    .rule-text {
        font-size: 0.8rem;
    }
    
    .validation-result {
        padding: var(--spacing-sm);
        font-size: 0.8rem;
    }
    
    .toast {
        font-size: 0.8rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Touch device improvements */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .sample-dropdown,
    .platform-dropdown,
    .form-group select,
    .form-group input {
        min-height: 44px;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .code-editor {
        min-height: 300px;
    }
}

/* Landscape mobile improvements */
@media (max-width: 768px) and (orientation: landscape) {
    .code-editor-container {
        min-height: 200px;
    }
    
    .code-editor {
        min-height: 180px;
    }
    
    .parsed-rules-container {
        max-height: 250px;
    }
    
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .logo {
        font-size: 1.1rem;
    }
}

/* Extra small screens */
@media (max-width: 360px) {
    .main-content {
        padding: var(--spacing-xs);
    }
    
    .panel-body {
        padding: var(--spacing-xs);
    }
    
    .panel-section {
        padding: var(--spacing-xs);
    }
    
    .code-editor-container {
        min-height: 200px;
    }
    
    .code-editor {
        min-height: 180px;
        font-size: 0.7rem;
        padding: var(--spacing-xs);
        padding-left: calc(2.5rem + var(--spacing-xs));
    }
    
    .line-numbers {
        width: 2rem;
        padding: var(--spacing-xs);
        font-size: 0.7rem;
    }
    
    .btn {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        min-height: 36px;
    }
    
    .sample-dropdown,
    .platform-dropdown {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        min-height: 36px;
    }
    
    .form-group label {
        font-size: 0.8rem;
    }
    
    .form-group input,
    .form-group select {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        min-height: 36px;
    }
    
    .eval-step {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .eval-step-rule {
        font-size: 0.7rem;
    }
    
    .footer-brand span {
        font-size: 0.85rem;
    }
}

/* Ensure proper box-sizing */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Prevent horizontal overflow */
html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

.app-container {
    max-width: 100%;
    overflow-x: hidden;
}