/* Reset y variables CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #24934e 0%, #1c952e 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #5739b1 100%);
    --dark-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    
    /* Colores de fondo */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.25);
    
    /* Colores de texto */
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-white: #ffffff;
    
    /* Sombras */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
    
    /* Bordes */
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.3rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

/* Configuración general */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(245, 87, 108, 0.1) 0%, transparent 50%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
    overflow-x: hidden;
}

/* Controles flotantes (reset y tema) */
.ui-controls {
    position: fixed;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 10px;
    z-index: 9999;
}

.icon-btn {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 2px solid rgba(102, 126, 234, 0.25);
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: grid;
    place-items: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.icon-btn:hover {
    transform: translateY(-2px);
    border-color: #667eea;
    box-shadow: var(--shadow-lg);
}

/* (removido) estilos de menú de apps */

/* Botones laterales de scroll */
.side-btn {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 2px solid rgba(102,126,234,0.25);
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: grid;
    place-items: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    z-index: 9998;
}

.side-btn.left { left: 12px; }
.side-btn.right { right: 12px; }

.side-btn:hover { box-shadow: var(--shadow-lg); }

.theme-toggle {
    position: relative;
    width: 64px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    padding: 6px;
    border-radius: 999px;
    background: var(--bg-secondary);
    border: 2px solid rgba(102, 126, 234, 0.25);
    box-shadow: var(--shadow-md);
}

.theme-toggle input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.toggle-track {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px;
    color: var(--text-primary);
}

.toggle-track i {
    font-size: 14px;
    opacity: 0.8;
}

/* Tema oscuro */
.dark {
    --bg-primary: #0f172a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.9);
    --bg-glass: rgba(17, 24, 39, 0.25);
    --text-primary: #e5e7eb;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --shadow-glow: 0 0 24px rgba(102, 126, 234, 0.25);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.45);
    --shadow-lg: 0 14px 28px rgba(0,0,0,0.55);
    --shadow-xl: 0 18px 40px rgba(0,0,0,0.6);
}

.dark .header,
.dark .freebet-header {
    filter: saturate(0.9) brightness(0.95);
}

.dark .modern-table thead { filter: brightness(0.9); }
.dark .freebet-table thead { filter: brightness(0.9); }

.dark .beneficio { -webkit-text-fill-color: #76b9ff; color: #76b9ff; }
.dark .apuesta-calculada { background: rgba(79, 172, 254, 0.12); color: #8cc5ff; }
.dark .ganancia-value { background: rgba(72, 187, 120, 0.12); color: #7ae6a6; }
.dark .ganancia-final { background: rgba(72, 187, 120, 0.18); color: #9af0bf; }

/* Container principal */
.container {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    min-height: 100vh;
    align-items: stretch;
}

/* Sección de la calculadora (lado izquierdo) */
.calculator-section {
    position: relative;
    z-index: 1;
}

.calculator-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.calculator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    z-index: 1;
}

.calculator-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

/* Header de la calculadora */
.header {
    background: var(--primary-gradient);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.header::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.header-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.header-icon i {
    font-size: 24px;
    color: var(--text-white);
}

.header-content h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

/* Contenido de la calculadora */
.calculator-content {
    padding: var(--spacing-xl);
}

/* Tarjeta de partido (nombres de equipos) */
.match-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.match-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: end;
}

.team-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
}

.team-input {
    text-align: center;
}

.vs {
    font-weight: 800;
    color: var(--text-muted);
    align-self: center;
}

@media (max-width: 768px) {
    .match-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        align-items: stretch;
    }
    .vs { text-align: center; }
}

.table-container {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

/* Tabla moderna */
.modern-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.modern-table thead {
    background: var(--dark-gradient);
}

.modern-table thead th {
    padding: var(--spacing-lg);
    font-weight: 600;
    color: var(--text-white);
    text-align: center;
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: none;
    position: relative;
}

.resultado-header { width: 140px; }

.modern-table thead th i {
    margin-right: var(--spacing-sm);
    opacity: 0.8;
}

.modern-table tbody .table-row {
    transition: all 0.2s ease;
    background: var(--bg-secondary);
}

.modern-table tbody .table-row:nth-child(even) {
    background: rgba(102, 126, 234, 0.02);
}

.modern-table tbody .table-row:hover {
    background: rgba(102, 126, 234, 0.08);
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.modern-table td {
    padding: var(--spacing-lg);
    text-align: center;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    min-width: 120px;
}

.resultado-col {
    font-weight: 700;
    color: var(--text-primary);
    text-align: left;
    white-space: nowrap;
}

/* Inputs modernos */
.input-wrapper {
    position: relative;
}

.modern-input {
    width: 100%;
    min-width: 100px;
    padding: 14px 20px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--border-radius);
    font-size: 18px;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    text-align: center;
}

/* Ocultar flechitas de input number */
.modern-input::-webkit-outer-spin-button,
.modern-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.modern-input[type=number] {
    -moz-appearance: textfield;
}

.modern-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.modern-input:hover {
    border-color: rgba(102, 126, 234, 0.4);
}

.modern-input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

/* Radio buttons modernos */
.radio-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modern-radio {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    background: var(--bg-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.modern-radio:checked {
    border-color: #667eea;
    background: var(--primary-gradient);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.modern-radio:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    background: var(--text-white);
    border-radius: 50%;
}

.modern-radio:hover {
    border-color: #667eea;
    transform: scale(1.1);
}

.radio-label {
    cursor: pointer;
}

/* Beneficio wrapper */
.beneficio-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.beneficio {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    background: var(--success-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    background-color: rgba(79, 172, 254, 0.1);
    -webkit-text-fill-color: #4facfe;
}

/* Tarjeta de resumen */
.summary-card {
    background: var(--success-gradient);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.summary-card:hover::before {
    opacity: 1;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.summary-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.summary-icon i {
    font-size: 20px;
    color: var(--text-white);
}

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

.summary-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.summary-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Sección derecha - Calculadora FREEBET */
.right-section {
    position: relative;
    z-index: 1;
}

.freebet-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(245, 87, 108, 0.2);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.freebet-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--secondary-gradient);
    z-index: 1;
}

.freebet-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 0 20px rgba(245, 87, 108, 0.3);
}

/* Header FREEBET */
.freebet-header {
    background: var(--secondary-gradient);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.freebet-header::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

/* Contenido FREEBET */
.freebet-content {
    padding: var(--spacing-xl);
}

/* Porcentaje destacado arriba */
.percentage-display {
    background: linear-gradient(135deg, #62896d 0%, #61b06e 100%);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(255, 217, 61, 0.3);
}

.percentage-value {
    font-size: 24px;
    font-weight: 700;
    color: #2D3748;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}

/* Input section FREEBET */
.freebet-input-section {
    margin-bottom: var(--spacing-xl);
}

.market-name-selects {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.market-text-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(245, 87, 108, 0.2);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    outline: none;
    text-align: center;
}

.market-text-input:focus {
    border-color: #f5576c;
    box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.1);
}

@media (max-width: 768px) {
    .market-name-selects {
        grid-template-columns: 1fr;
    }
}

.freebet-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 16px;
}

.freebet-label i {
    color: #b8ba10;
}

.freebet-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.freebet-input {
    width: 100%;
    padding: 16px 50px 16px 16px;
    border: 2px solid rgba(245, 87, 108, 0.2);
    border-radius: var(--border-radius);
    font-size: 18px;
    font-weight: 600;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
}

.freebet-input:focus {
    border-color: #4c4849;
    box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.1);
    transform: translateY(-1px);
}

.currency-symbol {
    position: absolute;
    right: 16px;
    font-weight: 600;
    color: #767474;
    font-size: 18px;
}

/* Ocultar flechitas de input FREEBET */
.freebet-input::-webkit-outer-spin-button,
.freebet-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.freebet-input[type=number] {
    -moz-appearance: textfield;
}

.freebet-cuota::-webkit-outer-spin-button,
.freebet-cuota::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.freebet-cuota[type=number] {
    -moz-appearance: textfield;
}

/* Tabla FREEBET */
.freebet-table-container {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(0, 0, 0, 0.05);
    margin-bottom: 5px;
}

.freebet-table {
    width: 100%;
    margin-top: 5px;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.freebet-table thead {
    background: linear-gradient(135deg, #26853b 0%, #92b872 100%);
}

.freebet-table thead th {
    padding: var(--spacing-lg);
    font-weight: 600;
    color: var(--text-white);
    text-align: center;
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border: none;
}

.freebet-row {
    transition: all 0.2s ease;
    background: var(--bg-secondary);
}

.freebet-row:nth-child(even) {
    background: rgba(245, 87, 108, 0.02);
}

.freebet-row:hover {
    background: rgba(245, 87, 108, 0.08);
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.freebet-main {
    background: rgba(245, 87, 108, 0.1) !important;
    border-left: 4px solid #f5576c;
}

.freebet-table td {
    padding: var(--spacing-lg);
    text-align: center;
    border: none;
    border-bottom: 1px solid rgba(201, 12, 12, 0.05);
}

.market-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.market-label i {
    color: #d4df05;
}

.freebet-cuota {
    width: 100%;
    min-width: 80px;
    padding: 12px 16px;
    border: 2px solid rgba(245, 87, 108, 0.2);
    border-radius: var(--border-radius);
    font-size: 18px;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s ease;
    outline: none;
    text-align: center;
}

.freebet-cuota:focus {
    border-color: #f5576c;
    box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.1);
}

.freebet-amount-display,
.apuesta-calculada,
.ganancia-value,
.ganancia-final {
    font-weight: 600;
    font-size: 16px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
}

.freebet-amount-display {
    background: rgba(245, 87, 108, 0.1);
    color: #f5576c;
}

.apuesta-calculada {
    background: rgba(79, 172, 254, 0.1);
    color: #4facfe;
}

.ganancia-value {
    background: rgba(72, 187, 120, 0.1);
    color: #48bb78;
}

.ganancia-final {
    background: rgba(72, 187, 120, 0.15);
    color: #2F855A;
    font-weight: 700;
}

/* Resumen FREEBET */
.freebet-summary {
    margin-bottom: var(--spacing-xl);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.summary-metric {
    background: linear-gradient(135deg, rgba(245, 87, 108, 0.1) 0%, rgba(240, 147, 251, 0.1) 100%);
    border: 1px solid rgba(245, 87, 108, 0.2);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all 0.3s ease;
}

.summary-metric:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(245, 87, 108, 0.4);
}

.metric-icon {
    width: 40px;
    height: 40px;
    background: var(--secondary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.metric-icon i {
    color: var(--text-white);
    font-size: 16px;
}

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

.metric-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Firma del desarrollador */
.developer-signature {
    background: linear-gradient(135deg, #2D3748 0%, #4A5568 100%);
    border-top: 3px solid #667eea;
    padding: var(--spacing-lg) var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.signature-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.signature-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: #E2E8F0;
    font-size: 14px;
}

.signature-text i {
    color: #667eea;
    font-size: 16px;
}

.signature-text strong {
    color: #F7FAFC;
    font-weight: 600;
}

.year {
    color: #A0AEC0;
    font-size: 12px;
}

.signature-tech {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: #CBD5E0;
    font-size: 12px;
    font-style: italic;
}

.signature-tech i {
    color: #48bb78;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        padding: var(--spacing-lg);
    }
    
    .calculator-section {
        order: 1;
    }
    
    .right-section {
        order: 2;
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
        gap: var(--spacing-lg);
    }
    
    .header {
        padding: var(--spacing-lg);
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .header-content h1 {
        font-size: 24px;
    }
    
    .calculator-content {
        padding: var(--spacing-lg);
    }
    
    .table-container {
        padding: var(--spacing-md);
        overflow-x: auto;
    }
    
    .modern-table {
        min-width: 500px;
    }
    
    .modern-table td {
        padding: var(--spacing-md);
    }
    
    .modern-input {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    .summary-card {
        padding: var(--spacing-lg);
    }
    
    .summary-value {
        font-size: 24px;
    }
    
    .placeholder-card {
        padding: var(--spacing-xl);
        min-height: 200px;
    }
    
    .placeholder-content i {
        font-size: 36px;
    }
    
    .placeholder-content h3 {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .header-content h1 {
        font-size: 20px;
    }
    
    .modern-table {
        min-width: 400px;
    }
    
    .summary-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .signature-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .signature-text, .signature-tech {
        justify-content: center;
    }
}

/* Animaciones adicionales */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.calculator-card {
    animation: fadeInUp 0.6s ease-out;
}

.placeholder-card {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* Efectos de scroll */
@media (prefers-reduced-motion: no-preference) {
    .table-row {
        opacity: 0;
        animation: fadeInUp 0.4s ease-out forwards;
    }
    
    .table-row:nth-child(1) { animation-delay: 0.1s; }
    .table-row:nth-child(2) { animation-delay: 0.2s; }
    .table-row:nth-child(3) { animation-delay: 0.3s; }
}