/* Reset e Variáveis */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e3a5f; /* Azul Escuro */
    --secondary-color: #22c55e; /* Verde */
    --accent-color: #10b981; /* Verde mais escuro */
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-light) 0%, #e0f2fe 100%);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
    border-radius: 20px;
    color: white;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo i {
    font-size: 3rem;
    color: var(--secondary-color);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-top: 10px;
}

/* Main Content */
main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Simulator Form */
.simulator-form {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

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

.input-wrapper {
    position: relative;
    margin-bottom: 15px;
}

.currency {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-weight: 600;
    color: var(--text-light);
}

input[type="number"] {
    width: 100%;
    padding: 15px 15px 15px 45px;
    font-size: 1.2rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    transition: all 0.3s;
}

.form-group:not(:has(.input-wrapper)) input[type="number"] {
    padding: 15px;
}

input[type="number"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

/* Slider */
.slider {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    margin-bottom: 10px;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--secondary-color);
    cursor: pointer;
    transition: all 0.3s;
}

.slider::-webkit-slider-thumb:hover {
    background: var(--accent-color);
    transform: scale(1.2);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--secondary-color);
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.slider::-moz-range-thumb:hover {
    background: var(--accent-color);
    transform: scale(1.2);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Buttons */
.btn-calculate {
    width: 100%;
    padding: 18px;
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s;
    box-shadow: var(--shadow);
}

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

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

/* Quick Options */
.quick-options {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.quick-options h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.quick-options h3 i {
    color: var(--secondary-color);
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
}

.option-card {
    padding: 20px;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s;
}

.option-card:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

/* Results Section */
.results {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.5s;
}

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

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.results h2 {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.results h2 i {
    color: var(--secondary-color);
}

.btn-export {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    box-shadow: var(--shadow);
}

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

/* Summary Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.summary-card {
    background: var(--bg-light);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.summary-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.summary-card i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.summary-card h3 {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 10px;
    font-weight: 500;
}

.summary-card p {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.summary-card.highlight {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    border-color: var(--secondary-color);
}

.summary-card.highlight i,
.summary-card.highlight h3,
.summary-card.highlight p {
    color: white;
}

/* Table */
.table-container {
    margin-top: 30px;
}

.table-container h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.table-container h3 i {
    color: var(--secondary-color);
}

.table-wrapper {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

thead {
    background: var(--primary-color);
    color: white;
}

thead th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

tbody tr:hover {
    background: var(--bg-light);
}

tbody td {
    padding: 15px;
}

tbody tr:nth-child(even) {
    background: #f8fafc;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    color: var(--text-light);
}

footer i {
    color: var(--secondary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 1.8rem;
    }

    .logo i {
        font-size: 2rem;
    }

    .simulator-form {
        padding: 25px;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .options-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .results-header {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-export {
        width: 100%;
        justify-content: center;
    }

    table {
        font-size: 0.9rem;
    }

    thead th,
    tbody td {
        padding: 10px 8px;
    }
}

@media (max-width: 480px) {
    .options-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    header h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }
}