/* Custom CSS for IP Tools Suite */

/* Variables */
:root {
    --primary-color: #2c5aa0;
    --secondary-color: #1e8bc3;
    --accent-color: #17a2b8;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #2c3e50;
    --light-color: #f8f9fa;
    --border-color: #e9ecef;
    --text-muted: #6c757d;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --box-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Light theme specific */
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    --body-bg: #f8f9fa;
    --surface-bg: white;
    --header-bg: rgba(255, 255, 255, 0.1);
    --nav-bg: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --table-bg: white;
    --table-hover: rgba(44, 90, 160, 0.02);
    --ranges-bg: #f8f9fa;
    --input-bg: white;
    --footer-bg: rgba(0, 0, 0, 0.8);
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --text-on-gradient: white;
}

/* Dark theme */
[data-theme="dark"] {
    --primary-color: #4a90e2;
    --secondary-color: #5ba2f0;
    --dark-color: #e9ecef;
    --light-color: #2a2d3a;
    --border-color: #404654;
    --text-muted: #9ca3af;
    
    /* Dark theme specific */
    --bg-gradient-start: #1a1d29;
    --bg-gradient-end: #2a2d3a;
    --body-bg: #1a1d29;
    --surface-bg: #2a2d3a;
    --header-bg: rgba(0, 0, 0, 0.3);
    --nav-bg: linear-gradient(135deg, #2a2d3a 0%, #1f2937 100%);
    --table-bg: #2a2d3a;
    --table-hover: rgba(74, 144, 226, 0.1);
    --ranges-bg: #1f2937;
    --input-bg: #374151;
    --footer-bg: rgba(0, 0, 0, 0.9);
    --text-primary: #e9ecef;
    --text-secondary: #9ca3af;
    --text-on-gradient: #e9ecef;
    
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --box-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    margin: 0;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header Section */
.header-section {
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.main-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-on-gradient);
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.main-title i {
    margin-right: 1rem;
    color: #ffd700;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-on-gradient);
    opacity: 0.9;
    margin: 0;
    font-weight: 300;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle */
.theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-on-gradient);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    color: var(--text-on-gradient);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.website-link {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    white-space: nowrap;
    width: auto;
    font-size: 0.95rem;
}

.website-link:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.website-link i {
    margin-right: 0.5rem;
    color: #ffd700;
}

/* Main Container */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 4rem;
}

/* Tool Container */
.tool-container {
    background: var(--surface-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    overflow: hidden;
    transition: var(--transition);
}

/* Navigation Tabs */
.nav-wrapper {
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border-color);
}

.custom-tabs {
    border: none;
    padding: 0;
    margin: 0;
}

.custom-tabs .nav-item {
    margin: 0;
}

.custom-tabs .nav-link {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 1.5rem 2rem;
    border-radius: 0;
    transition: var(--transition);
    position: relative;
    font-weight: 500;
}

.custom-tabs .nav-link:hover {
    color: var(--primary-color);
    background: rgba(44, 90, 160, 0.05);
}

.custom-tabs .nav-link.active {
    color: var(--primary-color);
    background: var(--surface-bg);
    border-bottom: 3px solid var(--primary-color);
    font-weight: 600;
}

.tab-content-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tab-content-wrapper i {
    font-size: 1.1rem;
}

/* Tool Content */
.tool-content {
    padding: 2.5rem;
}

.tool-header {
    margin-bottom: 2rem;
    text-align: center;
}

.tool-header h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tool-header h3 i {
    margin-right: 0.75rem;
}

.tool-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin: 0;
}

/* Form Styles */
.calculation-form {
    margin-bottom: 2rem;
}

.form-section {
    background: var(--ranges-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.input-group-custom {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-label i {
    color: var(--primary-color);
    width: 16px;
}

.custom-input,
.custom-textarea {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: 'Monaco', 'Consolas', monospace;
}

.custom-input:focus,
.custom-textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
    outline: none;
}

.input-hint {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-style: italic;
}

/* Button Styles */
.btn-calculate {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    color: white;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-width: 180px;
}

.btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.3);
}

.btn-calculate:active {
    transform: translateY(0);
}

.btn-calculate:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-loading {
    display: none;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.btn-calculate span {
    transition: var(--transition);
}

/* Input Method Tabs */
.input-method-tabs {
    margin-bottom: 2rem;
}

.custom-pills .nav-link {
    background: var(--border-color);
    color: var(--text-muted);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    margin-right: 0.5rem;
    transition: var(--transition);
    font-weight: 500;
}

.custom-pills .nav-link:hover {
    background: var(--primary-color);
    color: white;
}

.custom-pills .nav-link.active {
    background: var(--primary-color);
    color: white;
}

.input-content {
    background: var(--ranges-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* File Upload */
.file-upload-section {
    text-align: center;
}

.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    background: var(--input-bg);
    transition: var(--transition);
    cursor: pointer;
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(44, 90, 160, 0.05);
}

.file-upload-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.file-upload-area h5 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.file-upload-area p {
    color: var(--text-secondary);
    margin: 0;
}

.file-upload-area input[type="file"] {
    display: none;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Results Section */
.results-section {
    animation: slideIn 0.5s ease-out;
}

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

.results-header {
    margin-bottom: 1.5rem;
}

.results-header h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.results-header h4 i {
    color: var(--primary-color);
}

/* Table Styles */
.table-container {
    background: var(--table-bg);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.table-modern {
    margin: 0;
    font-size: 0.95rem;
}

.table-modern th {
    background: var(--nav-bg);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1rem 1.25rem;
    border: none;
    white-space: nowrap;
}

.table-modern th i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

.table-modern td {
    padding: 1rem 1.25rem;
    border: none;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table-modern tbody tr:hover {
    background: var(--table-hover);
}

.table-modern tbody tr:last-child td {
    border-bottom: none;
}

/* Value Display */
.value-display {
    line-height: 1.4;
}

.primary-value {
    font-family: 'Monaco', 'Consolas', monospace;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.binary-value {
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.cidr-badge {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: 'Monaco', 'Consolas', monospace;
}

.hosts-count {
    color: var(--success-color);
    font-weight: 600;
}

.class-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Ranges Display */
.complement-ranges,
.consolidated-ranges {
    background: var(--ranges-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.ranges-header {
    background: var(--surface-bg);
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.ranges-label {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ranges-label i {
    color: var(--primary-color);
}

.ranges-content {
    padding: 1.25rem;
    max-height: 300px;
    overflow-y: auto;
}

.range-item {
    background: var(--surface-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    font-family: 'Monaco', 'Consolas', monospace;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

.range-item:hover {
    border-color: var(--primary-color);
    background: rgba(44, 90, 160, 0.02);
}

.range-item:last-child {
    margin-bottom: 0;
}

.no-ranges {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 2rem;
}

/* Copy Button */
.copy-btn {
    border: 1px solid var(--border-color);
    background: var(--surface-bg);
    color: var(--text-secondary);
    transition: var(--transition);
}

.copy-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(44, 90, 160, 0.05);
}

/* Consolidation Stats */
.consolidation-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.stat-card {
    background: var(--surface-bg);
    border-radius: var(--border-radius-sm);
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    min-width: 150px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card.efficiency {
    border-color: var(--success-color);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.stat-icon.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
}

.stat-content {
    text-align: left;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.stat-arrow {
    color: var(--text-secondary);
    font-size: 1.5rem;
}

/* Footer */
.footer-section {
    background: var(--footer-bg);
    color: var(--text-on-gradient);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
}

.footer-badge i {
    margin-right: 0.5rem;
    color: #28a745;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-section {
        padding: 1.5rem 0;
        text-align: center;
    }
    
    .main-title {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .tool-content {
        padding: 1.5rem;
    }
    
    .custom-tabs .nav-link {
        padding: 1rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .tab-content-wrapper {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .form-section {
        padding: 1.5rem;
    }
    
    .consolidation-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-card {
        min-width: auto;
        width: 100%;
        max-width: 280px;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .ranges-content {
        max-height: 200px;
    }
}

@media (max-width: 576px) {
    .main-container {
        padding: 0 1rem;
    }
    
    .tool-content {
        padding: 1rem;
    }
    
    .custom-tabs .nav-link {
        padding: 0.75rem 1rem;
    }
    
    .form-section,
    .input-content {
        padding: 1rem;
    }
}

/* Custom scrollbar */
.ranges-content::-webkit-scrollbar {
    width: 6px;
}

.ranges-content::-webkit-scrollbar-track {
    background: var(--light-color);
}

.ranges-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

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

/* Print styles */
@media print {
    body {
        background: white;
    }
    
    .header-section,
    .footer-section {
        background: white;
        color: black;
    }
    
    .tool-container {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
    
    .btn-calculate,
    .copy-btn {
        display: none;
    }
}