/* CSS Variables */
:root {
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    
    --secondary-500: #f59e0b;
    --secondary-600: #d97706;
    
    --whatsapp: #25d366;
    --whatsapp-dark: #22c55e;
    
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    --white: #ffffff;
    --black: #000000;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;
    
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Icon Styles */
svg {
    stroke-width: 2;
    transition: var(--transition-fast);
}

.icon-star {
    width: 1rem;
    height: 1rem;
    fill: #fbbf24;
    stroke: #fbbf24;
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
    50% { transform: scale(1.1) rotate(5deg); opacity: 0.8; }
}

.icon-check {
    width: 1.25rem;
    height: 1.25rem;
    stroke: #10b981;
    stroke-width: 2.5;
    fill: none;
}

.icon-brain {
    width: 2rem;
    height: 2rem;
    stroke: var(--primary-600);
    fill: none;
    transition: var(--transition);
}

.benefit-card:hover .icon-brain {
    transform: scale(1.1);
    stroke: var(--primary-700);
}

.icon-target {
    width: 2rem;
    height: 2rem;
    stroke: #10b981;
    fill: none;
    transition: var(--transition);
}

.benefit-card:hover .icon-target {
    transform: scale(1.1);
    stroke: #059669;
}

.icon-whatsapp {
    width: 2rem;
    height: 2rem;
    fill: var(--whatsapp);
    transition: var(--transition);
}

.benefit-card:hover .icon-whatsapp {
    transform: scale(1.1);
    fill: var(--whatsapp-dark);
}

.icon-user {
    width: 1rem;
    height: 1rem;
    stroke: var(--gray-600);
    fill: none;
}

.icon-whatsapp-form {
    width: 1rem;
    height: 1rem;
    fill: var(--whatsapp);
}

.icon-warning {
    width: 1rem;
    height: 1rem;
    stroke: var(--error);
    fill: none;
}

.icon-rocket {
    width: 1.125rem;
    height: 1.125rem;
    stroke: white;
    fill: none;
    transition: var(--transition-fast);
}

.submit-btn:hover:not(:disabled) .icon-rocket {
    transform: translateX(2px) translateY(-1px);
}

.icon-success {
    width: 1.5rem;
    height: 1.5rem;
    stroke: white;
    fill: none;
    stroke-width: 2.5;
}

.icon-error {
    width: 1.5rem;
    height: 1.5rem;
    stroke: white;
    fill: none;
    stroke-width: 2.5;
}

.icon-clock {
    width: 1.25rem;
    height: 1.25rem;
    stroke: #991b1b;
    fill: none;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 2rem;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    opacity: 0.5;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--gray-800);
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.hero-badge:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
}

.hero-content {
    max-width: 4xl;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-highlight {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
}

/* Benefits Section */
.benefits {
    padding: 5rem 0;
    background: var(--white);
    position: relative;
}

.benefits::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.benefit-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-3xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: var(--radius-3xl) var(--radius-3xl) 0 0;
}

.benefit-blue::before {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.benefit-green::before {
    background: linear-gradient(135deg, #10b981, #059669);
}

.benefit-yellow::before {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.benefit-icon {
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: var(--primary-600);
    transition: var(--transition);
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.1);
}

.benefit-card h3 {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.benefit-card p {
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 1rem;
}

/* Form Section */
.form-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    position: relative;
}

.form-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23f1f5f9' fill-opacity='0.4'%3E%3Ccircle cx='7' cy='7' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    opacity: 0.5;
}

.form-wrapper {
    max-width: 520px;
    margin: 0 auto;
    background: var(--white);
    padding: 3.5rem;
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--gray-100);
    position: relative;
    z-index: 1;
}

.form-header {
    text-align: center;
    margin-bottom: 3rem;
}

.form-header h2 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.form-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
    line-height: 1.6;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-group {
    position: relative;
}

.input-group label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.input-group input {
    width: 100%;
    padding: 1.25rem 1.5rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    font-size: 1.125rem;
    font-weight: 500;
    background: var(--gray-50);
    transition: var(--transition);
    outline: none;
    line-height: 1.4;
}

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

.input-group input:focus {
    border-color: var(--primary-600);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
    transform: translateY(-1px);
}

.input-group input.valid {
    border-color: var(--success);
    background: #f0fdf4;
}

.input-group input.invalid {
    border-color: var(--error);
    background: #fef2f2;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 0.75rem;
    display: none;
    align-items: center;
    gap: 0.5rem;
}

.error-message.show {
    display: flex;
}

.submit-btn {
    background: linear-gradient(135deg, var(--whatsapp), var(--whatsapp-dark));
    color: var(--white);
    padding: 1.25rem 2rem;
    border: none;
    border-radius: var(--radius-xl);
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
    margin-top: 1.5rem;
    letter-spacing: -0.01em;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.8s ease;
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(-1px);
}

.submit-btn:disabled {
    opacity: 0.8;
    cursor: not-allowed;
    transform: none;
}

.loading-state {
    display: none;
    align-items: center;
    gap: 0.75rem;
}

.loading-state.show {
    display: flex;
}

.spinner {
    width: 22px;
    height: 22px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top: 2.5px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Messages */
.success-message,
.error-message-box {
    display: none;
    align-items: flex-start;
    gap: 1rem;
    padding: 2rem;
    border-radius: var(--radius-xl);
    margin-top: 2rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.success-message {
    background: linear-gradient(135deg, var(--whatsapp), var(--whatsapp-dark));
    color: var(--white);
}

.error-message-box {
    background: linear-gradient(135deg, var(--error), #dc2626);
    color: var(--white);
}

.success-message.show,
.error-message-box.show {
    display: flex;
    animation: slideIn 0.4s ease-out;
}

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

/* Social Proof Section */
.social-proof {
    background: linear-gradient(135deg, var(--gray-900) 0%, #0c0a09 100%);
    color: var(--white);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.social-proof::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(147, 51, 234, 0.1) 0%, transparent 50%);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--white);
    position: relative;
    z-index: 1;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.testimonial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.testimonial:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.avatar {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.avatar-blue {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.avatar-green {
    background: linear-gradient(135deg, #10b981, #059669);
}

.avatar-purple {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.testimonial-info {
    text-align: left;
}

.name {
    font-weight: 700;
    color: var(--white);
    font-size: 1.125rem;
}

.role {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.testimonial p {
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    font-size: 1rem;
}

/* Urgency Section */
.urgency {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    padding: 3rem 0;
    border-top: 4px solid var(--error);
    position: relative;
}

.urgency::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(239, 68, 68, 0.03) 10px,
        rgba(239, 68, 68, 0.03) 20px
    );
}

.urgency-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.urgency h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #991b1b;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.urgency p {
    color: #b91c1c;
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--gray-900), #0c0a09);
    color: var(--gray-400);
    padding: 2.5rem 0;
    text-align: center;
    border-top: 1px solid var(--gray-800);
}

.footer p {
    font-size: 0.95rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.show {
    display: flex !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
    
    .form-wrapper {
        padding: 2.5rem;
        margin: 0 1rem;
    }
    
    .benefits {
        padding: 4rem 0;
    }
    
    .social-proof {
        padding: 4rem 0;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .hero-badge {
        padding: 0.875rem 1.5rem;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .form-wrapper {
        padding: 2rem;
    }
    
    .input-group input {
        padding: 1.125rem 1.25rem;
        font-size: 1rem;
    }
    
    .submit-btn {
        padding: 1.125rem 1.5rem;
        font-size: 1.125rem;
    }
}

/* Performance optimizations */
* {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .hero,
    .social-proof {
        background: var(--white) !important;
        color: var(--black) !important;
    }
    
    svg {
        display: none;
    }
}

/* Additional modern touches */
.benefit-card,
.form-wrapper,
.testimonial {
    backdrop-filter: blur(8px);
}

/* Smooth scrolling enhancement */
@supports (scroll-behavior: smooth) {
    html {
        scroll-behavior: smooth;
    }
}