:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #f59e0b;
    /* Un color ámbar/dorado para dinero/préstamo */
    --accent-glow: rgba(245, 158, 11, 0.3);
    --input-bg: rgba(15, 23, 42, 0.6);
    --border-color: rgba(148, 163, 184, 0.2);
    --font-family: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
    position: relative;
}

.main-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 40px);
    width: 100%;
}

.background-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    pointer-events: none;
}

.calculator-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    width: 100%;
    max-width: 800px;
    /* Aumentado de 480px a 800px */
    /* Un poco más ancho para caber dos inputs de interés */
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.6s ease-out;
    transition: max-width 0.3s ease;
    /* Transición suave si cambiara dinámicamente */
}

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

header h1 {
    font-weight: 600;
    font-size: 1.8rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

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

.input-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.input-wrapper:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.currency-symbol,
.unit-symbol {
    padding-left: 1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.unit-symbol {
    padding-left: 0;
    padding-right: 1rem;
}

input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 1.25rem;
    padding: 1rem;
    outline: none;
    text-align: right;
    font-weight: 600;
}

/* Estilos para fila doble (Interés) */
.double-input-row {
    display: flex;
    gap: 15px;
}

.double-input-container {
    flex: 1;
}

.btn-reset {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-color), #d97706);
    border: none;
    border-radius: 12px;
    color: white;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 1rem;
}

.btn-reset:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px var(--accent-glow);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Botón Principal (Tabla) */
.btn-submit {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-color), #d97706);
    border: none;
    border-radius: 12px;
    color: white;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 1rem;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px var(--accent-glow);
}

/* Utilidad para ocultar */
.hidden-section {
    display: none;
}

/* Table Container (Inline) */
.table-container {
    width: 100%;
    margin-top: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow-x: auto;
    /* max-height removido para mostrar todas las filas */
}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

th,
td {
    padding: 0.75rem;
    text-align: right;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

th {
    background-color: rgba(15, 23, 42, 0.9);
    color: var(--accent-color);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    text-align: right;
    border-bottom: 2px solid var(--accent-color);
}

tbody tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.02);
}

tbody tr:hover {
    background-color: rgba(245, 158, 11, 0.1);
}

/* Scrollbar */
.table-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Footer de Tabla (Totales) */
tfoot tr {
    background-color: rgba(245, 158, 11, 0.2) !important;
    font-weight: 700;
    color: var(--accent-color);
}

tfoot td {
    padding: 1rem;
    text-align: right;
    border-top: 2px solid var(--accent-color);
}