/* IP Calculator System - Shared Styles */

:root {
    /* Brand Colors */
    --primary-color: #ff3679;
    --primary-light: #ff5c8d;
    --primary-dark: #e6185f;
    --background-color: #fbf5f2;
    
    /* Additional Colors */
    --text-dark: #2d3748;
    --text-light: #718096;
    --white: #ffffff;
    --success: #48bb78;
    --error: #f56565;
    --warning: #ed8936;
    --info: #4299e1;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    --gradient-hero: linear-gradient(135deg, #ff3679 0%, #ff5c8d 50%, #ff7ba3 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(255, 54, 121, 0.1);
    --shadow-md: 0 4px 12px rgba(255, 54, 121, 0.15);
    --shadow-lg: 0 8px 24px rgba(255, 54, 121, 0.2);
    --shadow-xl: 0 12px 32px rgba(255, 54, 121, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Input Field Styling */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
    font-size: 0.95rem;
}

.input-field {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: var(--white);
    color: var(--text-dark);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 54, 121, 0.1);
}

.input-field::placeholder {
    color: #cbd5e0;
}

.input-field.error {
    border-color: var(--error);
}

/* Select Dropdown Styling */
.select-field {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: var(--white);
    color: var(--text-dark);
    cursor: pointer;
}

.select-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 54, 121, 0.1);
}

/* Slider Styling */
.slider-container {
    margin: var(--spacing-md) 0;
}

.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #e2e8f0;
    outline: none;
    transition: background var(--transition-normal);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.slider-value {
    display: inline-block;
    margin-left: var(--spacing-sm);
    font-weight: 600;
    color: var(--primary-color);
}

/* Button Styles */
.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    justify-content: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

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

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

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

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border: 2px solid #e2e8f0;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-large {
    padding: 1.125rem 2rem;
    font-size: 1.125rem;
}

.btn-icon {
    padding: 0.75rem;
    border-radius: 50%;
}

/* Result Card Templates */
.result-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
}

.result-card:hover {
    box-shadow: var(--shadow-lg);
}

.result-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid #f7fafc;
}

.result-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.result-card-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.result-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f7fafc;
}

.result-row:last-child {
    border-bottom: none;
}

.result-label {
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.95rem;
}

.result-value {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1rem;
    font-family: 'Courier New', monospace;
}

/* Loading States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 600;
}

/* Error/Success Messages */
.message {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

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

.message-success {
    background: #c6f6d5;
    color: #22543d;
    border-left: 4px solid var(--success);
}

.message-error {
    background: #fed7d7;
    color: #742a2a;
    border-left: 4px solid var(--error);
}

.message-warning {
    background: #feebc8;
    color: #7c2d12;
    border-left: 4px solid var(--warning);
}

.message-info {
    background: #bee3f8;
    color: #2c5282;
    border-left: 4px solid var(--info);
}

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

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 300px;
    animation: toastSlide 0.3s ease;
}

@keyframes toastSlide {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

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

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

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

/* Binary Display Formatter */
.binary-display {
    font-family: 'Courier New', monospace;
    background: #f7fafc;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-size: 0.95rem;
}

.binary-octet {
    display: inline-block;
    margin: 0 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.binary-network {
    background: #c6f6d5;
    color: #22543d;
}

.binary-host {
    background: #bee3f8;
    color: #2c5282;
}

.binary-separator {
    color: var(--primary-color);
    font-weight: bold;
}

/* Table Styles */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table thead {
    background: var(--gradient-primary);
    color: var(--white);
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid #f7fafc;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.data-table tbody tr:hover {
    background: #f7fafc;
}

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

/* Modal/Tooltip Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

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

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip-text {
    visibility: hidden;
    background-color: var(--text-dark);
    color: var(--white);
    text-align: center;
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--transition-normal);
    font-size: 0.875rem;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Navigation Between Calculators */
.nav-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.nav-breadcrumb a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-breadcrumb a:hover {
    color: var(--primary-color);
}

.nav-breadcrumb-separator {
    color: var(--text-light);
}

.nav-breadcrumb-current {
    color: var(--text-dark);
    font-weight: 600;
}

.quick-nav {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.quick-nav-item {
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.quick-nav-item:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Copy Button */
.copy-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
    padding: 0.25rem;
}

.copy-btn:hover {
    transform: scale(1.1);
}

.copy-btn.copied {
    color: var(--success);
}

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

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

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.shake {
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }
    
    .result-card {
        padding: var(--spacing-md);
    }
    
    .result-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .modal {
        width: 95%;
        padding: var(--spacing-lg);
    }
    
    .toast-container {
        left: 10px;
        right: 10px;
        top: 10px;
    }
    
    .toast {
        min-width: auto;
        width: 100%;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

.text-right {
    text-align: right;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }