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

:root {
    --primary-color: #1e3a8a;
    --secondary-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    background-color: #2c4a7c;
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-text-large {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    letter-spacing: 0.05em;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.intro-box {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.intro-box p {
    margin: 0;
    font-size: 1.125rem;
}

/* Calculator Section */
.calculator-section {
    padding: 3rem 0;
}

.calculator-form {
    background-color: var(--bg-white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

.form-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.section-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.btn-calculate {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

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

/* Results Section */
.results-section {
    animation: fadeIn 0.5s ease;
}

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

.results-card {
    background-color: var(--bg-white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.results-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.price-display {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
    color: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    margin-bottom: 2rem;
}

.price-label {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.price-value {
    font-size: 3rem;
    font-weight: 700;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.result-item {
    background-color: var(--bg-light);
    padding: 1.25rem;
    border-radius: 0.75rem;
    text-align: center;
}

.result-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

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

.result-value.success {
    color: var(--success-color);
}

.result-value.warning {
    color: var(--warning-color);
}

.breakdown {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: 0.75rem;
}

.breakdown-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.breakdown-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background-color: white;
    border-radius: 0.5rem;
}

.breakdown-item-label {
    font-weight: 600;
}

.breakdown-item-value {
    font-weight: 700;
    color: var(--primary-color);
}

.insights {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #eff6ff;
    border-left: 4px solid var(--secondary-color);
    border-radius: 0.5rem;
}

.insights-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.insight-item {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.insight-item:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

.cta-section {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: 1rem;
}

.cta-text {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    line-height: 1.6;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--success-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

.btn-cta:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Responsive */
@media (max-width: 768px) {
    .logo-text-large {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .price-value {
        font-size: 2.5rem;
    }

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

    .calculator-form,
    .results-card {
        padding: 1.5rem;
    }
}

/* Tooltips */
.tooltip-icon {
    display: inline-block;
    margin-left: 0.5rem;
    cursor: help;
    font-size: 1rem;
    opacity: 0.7;
    transition: opacity 0.2s;
    position: relative;
}

.tooltip-icon:hover {
    opacity: 1;
}

.tooltip-icon::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 0.5rem;
    padding: 0.75rem 1rem;
    background-color: var(--text-dark);
    color: white;
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.4;
    border-radius: 0.5rem;
    white-space: normal;
    width: 300px;
    max-width: 90vw;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    pointer-events: none;
}

.tooltip-icon::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--text-dark);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 1000;
}

.tooltip-icon:hover::after,
.tooltip-icon:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Mobile tooltips */
@media (max-width: 768px) {
    .tooltip-icon::after {
        width: 250px;
        font-size: 0.8125rem;
    }
}

/* Radio Group */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.radio-option {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s;
    background-color: white;
}

.radio-option:hover {
    border-color: var(--secondary-color);
    background-color: #f0f9ff;
}

.radio-option input[type="radio"] {
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--secondary-color);
}

.radio-option input[type="radio"]:checked + .radio-content {
    color: var(--primary-color);
}

.radio-option:has(input[type="radio"]:checked) {
    border-color: var(--secondary-color);
    background-color: #eff6ff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.radio-content {
    flex: 1;
}

.radio-title {
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.radio-description {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* Campos condicionais */
.modo-unico,
.modo-multiplos {
    transition: all 0.3s ease;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .radio-option {
        padding: 1rem;
    }
    
    .radio-title {
        font-size: 1rem;
    }
    
    .radio-description {
        font-size: 0.875rem;
    }
}

/* Calculation Explanation */
.calculation-explanation {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-left: 4px solid var(--success-color);
    border-radius: 0.5rem;
}

.explanation-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.explanation-intro {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.calculation-step {
    background-color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    border: 1px solid #d1fae5;
}

.calculation-step:last-child {
    margin-bottom: 0;
    border: 2px solid var(--success-color);
    background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
}

.step-title {
    font-weight: 700;
    color: var(--success-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.step-formula {
    font-family: 'Courier New', monospace;
    background-color: #f9fafb;
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin: 0.5rem 0;
    border-left: 3px solid var(--success-color);
    line-height: 1.8;
    font-size: 0.9375rem;
}

.step-result {
    font-weight: 700;
    color: var(--success-color);
    margin-top: 0.5rem;
}