/* ============================================
   MyWhatsAppQR - Landing Page Styles
   ============================================ */

/* CSS Variables */
:root {
    --primary: #25D366;
    --primary-dark: #128C7E;
    --primary-light: #34eb7d;
    --secondary: #075E54;
    --dark: #111827;
    --dark-lighter: #1f2937;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border-color: var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-white {
    background: var(--white);
    color: var(--primary-dark);
    border-color: var(--white);
}

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
}

.logo-icon {
    font-size: 28px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.hero-title .highlight {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 19px;
    color: var(--gray-600);
    margin-bottom: 36px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Code Preview */
.code-preview {
    background: var(--gray-900);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: var(--gray-800);
    border-bottom: 1px solid var(--gray-700);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27ca40; }

.code-title {
    margin-left: auto;
    font-size: 13px;
    color: var(--gray-500);
}

.code-content {
    padding: 24px;
    margin: 0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.7;
    overflow-x: auto;
}

.code-content code {
    color: var(--gray-300);
}

.code-comment { color: #6b7280; }
.code-keyword { color: #f472b6; }
.code-key { color: #60a5fa; }
.code-string { color: #34d399; }
.code-boolean { color: #fbbf24; }

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--gray-50);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-slow);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* API Section */
.api-section {
    padding: 100px 0;
    background: var(--gray-50);
}

.api-endpoints {
    max-width: 800px;
    margin: 0 auto 48px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.endpoint {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--white);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.endpoint:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.method {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 6px;
    text-transform: uppercase;
}

.method.get {
    background: #dbeafe;
    color: #1d4ed8;
}

.method.post {
    background: #d1fae5;
    color: #047857;
}

.path {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 14px;
    color: var(--gray-900);
    font-weight: 600;
}

.desc {
    margin-left: auto;
    font-size: 14px;
    color: var(--gray-500);
}

.api-cta {
    text-align: center;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--white);
}

.pricing-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-main {
    position: relative;
    padding: 48px 40px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-xl);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 24px;
    background: var(--primary);
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
    border-radius: 20px;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-header h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price .currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-600);
}

.price .amount {
    font-size: 56px;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1;
}

.price .period {
    font-size: 16px;
    color: var(--gray-500);
}

.price-additional {
    text-align: center;
    margin-top: 16px;
    padding: 16px;
    background: var(--white);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--gray-200);
}

.price-additional .extra-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary);
}

.price-additional span {
    display: block;
    font-size: 14px;
    color: var(--gray-500);
    margin-top: 4px;
}

.pricing-features {
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: "✓";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
}

/* Account Calculator */
.calculator-card {
    padding: 40px 32px;
    background: var(--gray-900);
    border-radius: var(--border-radius-lg);
    color: var(--white);
}

.calculator-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    text-align: center;
}

.calculator-card > p {
    text-align: center;
    color: var(--gray-400);
    margin-bottom: 32px;
}

.calculator-input {
    margin-bottom: 24px;
}

.calculator-input label {
    display: block;
    font-size: 14px;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.account-selector {
    display: flex;
    align-items: center;
    gap: 16px;
    justify-content: center;
}

.account-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.account-btn:hover {
    background: var(--primary);
    color: var(--white);
}

.account-count {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    min-width: 80px;
    text-align: center;
}

.calculator-breakdown {
    background: var(--gray-800);
    border-radius: var(--border-radius-sm);
    padding: 20px;
    margin-bottom: 24px;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-400);
}

.breakdown-row.total {
    border-top: 2px solid var(--gray-700);
    margin-top: 12px;
    padding-top: 16px;
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
}

.breakdown-row.total .breakdown-value {
    color: var(--primary);
    font-size: 24px;
}

/* Registration Form */
.registration-section {
    padding: 100px 0;
    background: var(--gray-50);
}

.registration-container {
    max-width: 700px;
    margin: 0 auto;
}

.registration-form {
    background: var(--white);
    padding: 48px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.form-header p {
    color: var(--gray-500);
}

.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.1);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.form-summary {
    background: var(--gray-50);
    padding: 24px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
}

.form-summary h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-600);
}

.summary-row.total {
    border-top: 2px solid var(--gray-200);
    margin-top: 12px;
    padding-top: 12px;
    font-weight: 700;
    font-size: 18px;
    color: var(--gray-900);
}

.summary-row.total span:last-child {
    color: var(--primary-dark);
}

.stripe-element {
    padding: 14px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    transition: var(--transition);
}

.stripe-element.StripeElement--focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.1);
}

.form-terms {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 24px;
}

.form-terms input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--primary);
}

.form-terms label {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.5;
}

.form-terms a {
    color: var(--primary);
    text-decoration: underline;
}

.form-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
    display: none;
}

.form-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #16a34a;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
    display: none;
}

.whatsapp-support {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.whatsapp-support p {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.whatsapp-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.whatsapp-btn svg {
    width: 20px;
    height: 20px;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary) 100%);
    text-align: center;
}

.cta h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    background: var(--gray-900);
    color: var(--gray-400);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 15px;
    max-width: 280px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    font-size: 15px;
    color: var(--gray-400);
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    margin-bottom: 8px;
}

.disclaimer {
    font-size: 12px;
    color: var(--gray-600);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-container {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .calculator-card {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 17px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .endpoint {
        flex-wrap: wrap;
    }
    
    .desc {
        width: 100%;
        margin-left: 0;
        margin-top: 8px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta h2 {
        font-size: 32px;
    }
    
    .registration-form {
        padding: 32px 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .pricing-main {
        padding: 40px 24px;
    }
    
    .registro-container {
        grid-template-columns: 1fr;
    }
    
    .registro-benefits {
        order: -1;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn-lg {
        width: 100%;
    }
    
    .code-content {
        font-size: 12px;
        padding: 16px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .price .amount {
        font-size: 40px;
    }
    
    .account-count {
        font-size: 36px;
    }
}

/* ============================================
   Landing Page Additional Styles
   ============================================ */

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: 50px;
    font-size: 14px;
    color: var(--gray-600);
    margin-top: 24px;
}

/* Pricing Card Large */
.pricing-card.large {
    max-width: 500px;
    margin: 0 auto;
}

.pricing-card .price-note {
    font-size: 14px;
    color: var(--gray-500);
    margin-top: 8px;
}

/* Pricing Calculator */
.pricing-calculator {
    max-width: 600px;
    margin: 60px auto 0;
    padding: 40px;
    background: var(--gray-900);
    border-radius: var(--border-radius-lg);
    color: var(--white);
    text-align: center;
}

.pricing-calculator h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.calculator-subtitle {
    color: var(--gray-400);
    margin-bottom: 32px;
}

.calculator-subtitle strong {
    color: var(--primary);
}

.calculator-controls {
    margin-bottom: 32px;
}

.calculator-controls label {
    display: block;
    color: var(--gray-400);
    font-size: 14px;
    margin-bottom: 12px;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 20px;
    justify-content: center;
}

.accounts-slider {
    width: 200px;
    height: 8px;
    -webkit-appearance: none;
    background: var(--gray-700);
    border-radius: 4px;
    outline: none;
}

.accounts-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.accounts-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.accounts-count {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    min-width: 50px;
}

.calculator-result {
    margin-bottom: 24px;
}

.result-breakdown {
    background: var(--gray-800);
    border-radius: var(--border-radius-sm);
    padding: 20px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-400);
}

.breakdown-total {
    display: flex;
    justify-content: space-between;
    padding: 16px 0 0;
    margin-top: 12px;
    border-top: 2px solid var(--gray-700);
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
}

.breakdown-total span:last-child {
    color: var(--primary);
}

/* Pricing Note */
.pricing-note {
    max-width: 600px;
    margin: 48px auto 0;
    text-align: center;
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--border-radius);
}

.pricing-note p {
    color: var(--gray-600);
    margin-bottom: 16px;
}

.btn-whatsapp {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-whatsapp:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-whatsapp svg {
    width: 20px;
    height: 20px;
}

/* Registro Section */
.registro {
    padding: 100px 0;
    background: var(--gray-50);
}

.registro-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: start;
}

.registro-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.form-section {
    margin-bottom: 32px;
}

.form-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.1);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-note {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.stripe-element {
    padding: 14px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    transition: var(--transition);
}

.stripe-element.StripeElement--focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.1);
}

.form-error {
    color: var(--error);
    font-size: 14px;
    margin-top: 8px;
}

.form-summary {
    background: var(--gray-50);
    padding: 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-600);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    padding: 12px 0 0;
    margin-top: 12px;
    border-top: 2px solid var(--gray-200);
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
}

.summary-total span:last-child {
    color: var(--primary-dark);
}

.form-terms {
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--primary);
    flex-shrink: 0;
}

.checkbox-label span {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.5;
}

.checkbox-label a {
    color: var(--primary);
    text-decoration: underline;
}

.form-secure {
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 16px;
}

/* Registro Benefits */
.registro-benefits {
    position: sticky;
    top: 100px;
}

.registro-benefits h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
}

.registro-benefits ul {
    margin-bottom: 32px;
}

.registro-benefits li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-200);
}

.registro-benefits li:last-child {
    border-bottom: none;
}

.support-box {
    background: var(--gray-100);
    padding: 24px;
    border-radius: var(--border-radius);
    text-align: center;
}

.support-box h4 {
    margin-bottom: 8px;
}

.support-box p {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

/* Spinner */
.spinner {
    animation: spin 1s linear infinite;
}

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