/* RFC CURP Calculator Plugin Styles - Complete Fixed Version */

/* Color Scheme Variables */
:root {
    /* website default theme color */
    --global-palette5: #FFF9AF;
    --global-palette1: #006c43;
    --global-palette7: #b70a1e;
    
    
    /* Primary Theme - Mexican Green */
    --primary-bg: #006847;
    --primary-bg-light: #00A86B;
    --primary-bg-dark: #004d35;
    --primary-accent: #FFD700;
    --primary-text: #ffffff;
    --primary-text-dark: #2d4a37;
    
    /* Secondary Theme - Professional Blue */
    --secondary-bg: #1e3a8a;
    --secondary-bg-light: #3b82f6;
    --secondary-bg-dark: #1e40af;
    --secondary-accent: #fbbf24;
    --secondary-text: #ffffff;
    --secondary-text-dark: #1e40af;
    
    /* Accent Theme - Modern Purple */
    --accent-bg: #7c3aed;
    --accent-bg-light: #a855f7;
    --accent-bg-dark: #6d28d9;
    --accent-accent: #fcd34d;
    --accent-text: #ffffff;
    --accent-text-dark: #6d28d9;
    
    /* Validation Theme - Trust Orange */
    --validation-bg: #ea580c;
    --validation-bg-light: #fb923c;
    --validation-bg-dark: #c2410c;
    --validation-accent: #34d399;
    --validation-text: #ffffff;
    --validation-text-dark: #c2410c;
    
    /* Converter Theme - Sophisticated Teal */
    --converter-bg: #0f766e;
    --converter-bg-light: #14b8a6;
    --converter-bg-dark: #115e59;
    --converter-accent: #fde047;
    --converter-text: #ffffff;
    --converter-text-dark: #115e59;
    
    /* Corporate Theme - Executive Navy */
    --corporate-bg: #1e293b;
    --corporate-bg-light: #475569;
    --corporate-bg-dark: #0f172a;
    --corporate-accent: #06d6a0;
    --corporate-text: #ffffff;
    --corporate-text-dark: #1e293b;
    
    /* International Theme - Elegant Red */
    --international-bg: #dc2626;
    --international-bg-light: #ef4444;
    --international-bg-dark: #b91c1c;
    --international-accent: #22d3ee;
    --international-text: #ffffff;
    --international-text-dark: #b91c1c;
    
    /* Common Colors */
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
}

/* Base Calculator Container Styles */
.rfc-calculator-container,
.curp-calculator-container,
.rfc-homoclave-container,
.rfc-validator-container,
.curp-validator-container,
.rfc-curp-converter-container,
.rfc-empresarial-container,
.curp-extranjero-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.rfc-calculator-container:hover,
.curp-calculator-container:hover,
.rfc-homoclave-container:hover,
.rfc-validator-container:hover,
.curp-validator-container:hover,
.rfc-curp-converter-container:hover,
.rfc-empresarial-container:hover,
.curp-extranjero-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 30px -5px rgba(0, 0, 0, 0.15), 0 15px 15px -5px rgba(0, 0, 0, 0.08);
}

/* Decorative Background Pattern */
.rfc-calculator-container::before,
.curp-calculator-container::before,
.rfc-homoclave-container::before,
.rfc-validator-container::before,
.curp-validator-container::before,
.rfc-curp-converter-container::before,
.rfc-empresarial-container::before,
.curp-extranjero-container::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

/* Theme-specific color applications */
.theme-primary {
    --bg-color: var(--primary-bg);
    --bg-light: var(--primary-bg-light);
    --bg-dark: var(--primary-bg-dark);
    --accent-color: var(--primary-accent);
    --text-color: var(--primary-text);
    --text-dark: var(--primary-text-dark);
}

.theme-secondary {
    --bg-color: var(--secondary-bg);
    --bg-light: var(--secondary-bg-light);
    --bg-dark: var(--secondary-bg-dark);
    --accent-color: var(--secondary-accent);
    --text-color: var(--secondary-text);
    --text-dark: var(--secondary-text-dark);
}

.theme-accent {
    --bg-color: var(--accent-bg);
    --bg-light: var(--accent-bg-light);
    --bg-dark: var(--accent-bg-dark);
    --accent-color: var(--accent-accent);
    --text-color: var(--accent-text);
    --text-dark: var(--accent-text-dark);
}

.theme-validation {
    --bg-color: var(--validation-bg);
    --bg-light: var(--validation-bg-light);
    --bg-dark: var(--validation-bg-dark);
    --accent-color: var(--validation-accent);
    --text-color: var(--validation-text);
    --text-dark: var(--validation-text-dark);
}

.theme-converter {
    --bg-color: var(--converter-bg);
    --bg-light: var(--converter-bg-light);
    --bg-dark: var(--converter-bg-dark);
    --accent-color: var(--converter-accent);
    --text-color: var(--converter-text);
    --text-dark: var(--converter-text-dark);
}

.theme-corporate {
    --bg-color: var(--corporate-bg);
    --bg-light: var(--corporate-bg-light);
    --bg-dark: var(--corporate-bg-dark);
    --accent-color: var(--corporate-accent);
    --text-color: var(--corporate-text);
    --text-dark: var(--corporate-text-dark);
}

.theme-international {
    --bg-color: var(--international-bg);
    --bg-light: var(--international-bg-light);
    --bg-dark: var(--international-bg-dark);
    --accent-color: var(--international-accent);
    --text-color: var(--international-text);
    --text-dark: var(--international-text-dark);
}

/* Header Styles */
.calculator-header {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.calculator-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    color: var(--global-palette5);
}

.calculator-subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 0;
    font-weight: 400;
}

/* Form Styles - FIXED VERSION */
.rfc-calculator-form,
.curp-calculator-form,
.rfc-homoclave-form,
.rfc-validator-form,
.curp-validator-form,
.converter-form,
.rfc-empresarial-form,
.curp-extranjero-form,
.rfc-curp-combined-form {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 100%;
    box-sizing: border-box;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
    box-sizing: border-box;
}

/* FIXED: Desktop Form Row Layout */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    box-sizing: border-box;
}

/* Better spacing for larger screens */
@media (min-width: 1200px) {
    .form-row {
        gap: 2rem;
    }
    
    .rfc-curp-combined-form,
    .rfc-calculator-form,
    .curp-calculator-form {
        padding: 2.5rem;
    }
}

/* Fix overlap on medium screens */
@media (min-width: 769px) and (max-width: 1199px) {
    .form-row {
        gap: 1.5rem;
    }
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--global-palette1);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* FIXED: Input Field Sizing */
.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #ffffff;
    color: var(--gray-900) !important;
    box-sizing: border-box;
    min-height: 48px;
}

/* Better spacing for desktop */
@media (min-width: 768px) {
    .form-group input,
    .form-group select {
        padding: 1rem 1.25rem;
        font-size: 1.1rem;
        min-height: 52px;
    }
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--bg-color);
    box-shadow: 0 0 0 3px rgba(0, 108, 67, 0.1);
    transform: translateY(-1px);
}

.form-help {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
    font-style: italic;
}

/* Button Styles */
.btn-calculate,
.btn-validate,
.btn-convert {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--global-palette5);
    border: solid 2px var(--global-palette1);
    border-bottom: solid 7px var(--global-palette1);
    border-radius: 10px;
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    color: var(--global-palette1);
    min-height: 56px;
    box-sizing: border-box;
}

.btn-calculate:hover,
.btn-validate:hover,
.btn-convert:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    background: linear-gradient(135deg, var(--global-palette5) 0%, var(--accent-color) 100%);
    color: var(--global-palette3);
}

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

/* Result Styles */
.calculator-result,
.validator-result,
.converter-result {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideUp 0.5s ease;
}

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

.result-header h4 {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.result-code,
.result-code-full {
    background: var(--bg-color);
    color: var(--text-color);
    padding: 1.5rem;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.result-code::before,
.result-code-full::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* RFC Breakdown for Homoclave */
.result-breakdown {
    text-align: center;
}

.rfc-segments {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.rfc-segment {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-weight: 700;
    font-size: 1.125rem;
}

.rfc-letters {
    background: var(--accent-color);
    color: var(--text-dark);
}

.rfc-numbers {
    background: var(--bg-light);
    color: var(--text-color);
}

.rfc-homoclave {
    background: var(--bg-dark);
    color: var(--text-color);
}

/* Action Buttons */
.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.btn-copy,
.btn-share {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--bg-color);
    background: transparent;
    color: var(--bg-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-copy:hover,
.btn-share:hover {
    background: var(--bg-color);
    color: var(--text-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Validation Results */
.validation-status {
    text-align: center;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.125rem;
}

.validation-status.valid {
    background: linear-gradient(135deg, var(--success-color), #34d399);
    color: white;
}

.validation-status.invalid {
    background: linear-gradient(135deg, var(--error-color), #f87171);
    color: white;
}

.validation-details {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--bg-color);
}

.validation-details h5 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 600;
}

.validation-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.validation-details li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

.validation-details li:last-child {
    border-bottom: none;
}

.validation-details li strong {
    color: var(--text-dark);
    display: inline-block;
    min-width: 120px;
}

/* Converter Tabs */
.converter-tabs {
    display: flex;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    padding: 0.25rem;
    backdrop-filter: blur(10px);
}

.tab-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-dark);
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tab-btn.active {
    background: var(--bg-color);
    color: var(--text-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Form Notice */
.form-notice {
    background: rgba(255, 255, 255, 0.9);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--accent-color);
}

.form-notice p {
    margin: 0;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Result Info */
.result-info {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
}

.result-info p {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Loading States */
.btn-loading {
    display: none;
}

.loading .btn-text {
    display: none;
}

.loading .btn-loading {
    display: inline;
}

.loading .btn-calculate,
.loading .btn-validate,
.loading .btn-convert {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

/* Combined Calculator Specific Styles */
.rfc-curp-combined-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    min-height: 500px;
    box-sizing: border-box;
}

.combined-input-section,
.combined-results-section {
    transition: all 0.5s ease;
}

.combined-results-section {
    animation: slideInUp 0.6s ease;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* User Data Summary */
.user-data-summary {
    background: var(--global-palette5);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.user-data-summary h4 {
    color: var(--text-dark);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 600;
}

.data-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.data-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.data-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-value {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Result Cards */
.result-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: transform 0.3s ease;
}

.result-card:hover {
    transform: translateY(-2px);
}

.result-card .result-header h4 {
    color: var(--text-dark);
    font-size: 1rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 600;
}

.result-code-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    position: relative;
}

.result-code-container .result-code {
    flex: 1;
    background: transparent;
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 1.25rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 2px;
    margin: 0;
}

.btn-copy-small {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    padding: 0.5rem;
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
}

.btn-copy-small:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* Print Button Styling */
.btn-print {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--bg-color);
    background: var(--bg-color);
    color: var(--text-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-print:hover {
    background: var(--bg-dark);
    border-color: var(--bg-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Updated Share Button */
.btn-share {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--bg-color);
    background: transparent;
    color: var(--bg-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-share:hover {
    background: var(--bg-color);
    color: var(--text-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Action Buttons */
.result-actions-combined {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* New Calculate Button Section */
.result-new-calculation {
    margin-bottom: 2rem;
}

.btn-calculate-new {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-color, #FFD700), #FFA500);
    border: 2px solid var(--accent-color, #FFD700);
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    color: var(--text-dark, #2d4a37);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    min-height: 56px;
    box-sizing: border-box;
}

.btn-calculate-new:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
    background: linear-gradient(135deg, #FFA500, var(--accent-color, #FFD700));
}

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

/* Shimmer effect for the new button */
.btn-calculate-new::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmerNew 3s infinite;
}

@keyframes shimmerNew {
    0% { left: -100%; }
    50% { left: -100%; }
    100% { left: 100%; }
}

/* Button Icons */
.btn-print svg,
.btn-share svg,
.btn-calculate-new svg {
    flex-shrink: 0;
}

/* Info Section */
.result-info-combined {
    background: rgba(255, 255, 255, 0.9);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.info-icon {
    font-size: 1.125rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.info-text p {
    margin: 0;
    color: var(--gray-700);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--text-color);
    animation: spin 1s ease-in-out infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes shareNotification {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    15% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    85% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* Error States */
.form-group.error input,
.form-group.error select {
    border-color: var(--error-color);
    background: rgba(239, 68, 68, 0.05);
}

.form-group.error label {
    color: var(--error-color);
}

.error-message {
    color: var(--error-color);
    font-size: 0.75rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* Success States */
.form-group.success input,
.form-group.success select {
    border-color: var(--success-color);
    background: rgba(16, 185, 129, 0.05);
}

/* Copy Success Animation */
.copy-success {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--success-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    z-index: 1000;
    animation: copyNotification 2s ease;
}

@keyframes copyNotification {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    15% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    85% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* Accessibility Improvements */
.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;
}

/* Focus indicators for keyboard navigation */
*:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* RESPONSIVE DESIGN - MOBILE UX IMPROVEMENTS */

/* Mobile-first improvements */
@media (max-width: 768px) {
    .rfc-calculator-container,
    .curp-calculator-container,
    .rfc-homoclave-container,
    .rfc-validator-container,
    .curp-validator-container,
    .rfc-curp-converter-container,
    .rfc-empresarial-container,
    .curp-extranjero-container,
    .rfc-curp-combined-container {
        padding: 1.5rem;
        margin: 1rem;
        min-height: auto;
    }
    
    .rfc-calculator-form,
    .curp-calculator-form,
    .rfc-homoclave-form,
    .rfc-validator-form,
    .curp-validator-form,
    .converter-form,
    .rfc-empresarial-form,
    .curp-extranjero-form,
    .rfc-curp-combined-form {
        padding: 1.5rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .form-group input,
    .form-group select {
        padding: 0.875rem 1rem;
        font-size: 1rem;
        min-height: 50px;
    }
    
    .form-group label {
        margin-bottom: 0.75rem;
        font-size: 0.9rem;
    }
    
    .data-grid {
        grid-template-columns: 1fr;
    }

    .result-actions-combined {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .btn-print,
    .btn-share {
        width: 100%;
    }
    
    .btn-calculate-new {
        padding: 0.875rem 1.5rem;
        font-size: 0.875rem;
    }

    .result-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .btn-copy,
    .btn-share {
        width: 100%;
    }
    
    .converter-tabs {
        flex-direction: column;
    }
    
    .rfc-segments {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .calculator-title {
        font-size: 1.5rem;
        line-height: 1.2;
    }
    
    .calculator-subtitle {
        font-size: 0.9rem;
    }
    
    .result-code,
    .result-code-full {
        font-size: 1.25rem;
        letter-spacing: 1px;
        word-break: break-all;
    }

    .result-code-container {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .result-code-container .result-code {
        font-size: 1rem;
        word-break: break-all;
    }
    
    .btn-calculate,
    .btn-validate,
    .btn-convert {
        padding: 1.125rem 1.5rem;
        font-size: 1rem;
        min-height: 52px;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .rfc-calculator-container,
    .curp-calculator-container,
    .rfc-homoclave-container,
    .rfc-validator-container,
    .curp-validator-container,
    .rfc-curp-converter-container,
    .rfc-empresarial-container,
    .curp-extranjero-container,
    .rfc-curp-combined-container {
        padding: 1rem;
        margin: 0.5rem;
    }
    
    .rfc-calculator-form,
    .curp-calculator-form,
    .rfc-homoclave-form,
    .rfc-validator-form,
    .curp-validator-form,
    .converter-form,
    .rfc-empresarial-form,
    .curp-extranjero-form,
    .rfc-curp-combined-form {
        padding: 1rem;
    }
    
    .result-actions-combined {
        gap: 0.5rem;
    }
    
    .btn-print,
    .btn-share,
    .btn-calculate-new {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
    
    .btn-calculate-new {
        letter-spacing: 0.25px;
    }
    
    .btn-calculate,
    .btn-validate,
    .btn-convert {
        padding: 1rem;
        font-size: 0.95rem;
        min-height: 48px;
    }
}

/* Loading State for New Button */
.btn-calculate-new.loading {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.btn-calculate-new.loading::before {
    animation: none;
}

/* Focus States for Accessibility */
.btn-print:focus,
.btn-share:focus,
.btn-calculate-new:focus {
    outline: 2px solid var(--accent-color, #FFD700);
    outline-offset: 2px;
}

/* Print Button Icon Animation */
.btn-print:hover svg {
    animation: printBounce 0.6s ease;
}

@keyframes printBounce {
    0%, 20%, 60%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-3px);
    }
    80% {
        transform: translateY(-1px);
    }
}

/* Share Button Icon Animation */
.btn-share:hover svg {
    animation: shareRotate 0.5s ease;
}

@keyframes shareRotate {
    0% { transform: rotate(0deg); }
    50% { transform: rotate(5deg); }
    100% { transform: rotate(0deg); }
}

/* Calculate New Button Icon Animation */
.btn-calculate-new:hover svg {
    animation: refreshSpin 0.6s ease;
}

@keyframes refreshSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(180deg); }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .rfc-calculator-container,
    .curp-calculator-container,
    .rfc-homoclave-container,
    .rfc-validator-container,
    .curp-validator-container,
    .rfc-curp-converter-container,
    .rfc-empresarial-container,
    .curp-extranjero-container,
    .rfc-curp-combined-container {
        border: 3px solid var(--bg-color);
    }
    
    .form-group input,
    .form-group select {
        border-width: 3px;
    }
    
    .btn-print,
    .btn-share,
    .btn-calculate-new {
        border-width: 3px;
    }
    
    .btn-calculate-new {
        background: var(--accent-color, #FFD700);
        color: #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .btn-print svg,
    .btn-share svg,
    .btn-calculate-new svg {
        animation: none !important;
    }
    
    .btn-calculate-new::before {
        animation: none !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .btn-calculate-new {
        background: linear-gradient(135deg, #FFA500, #FF8C00);
        color: #000;
    }
}