/* 🎨 Paleta Oficial KAREO - Clean App System */
:root {
    /* Primary Brand Colors */
    --primary-teal: #0F5F5C;
    --primary-teal-light: #17827A;
    --soft-green-accent: #3ECF8E;

    /* Background System */
    --app-background: #F7FAFA;
    --card-background: #FFFFFF;
    --secondary-background: #EEF4F4;

    /* Neutrals */
    --dark-graphite: #1F2A2E;
    --medium-gray: #5C6B70;
    --light-gray: #DCE5E6;
    --ultra-light-border: #EDF2F3;

    /* Legacy aliases for compatibility */
    --primary-color: var(--primary-teal);
    --primary-dark: var(--primary-teal);
    --primary-light: var(--primary-teal-light);
    --secondary-color: var(--soft-green-accent);
    --text-dark: var(--dark-graphite);
    --text-light: var(--medium-gray);
    --bg-light: var(--app-background);
    --bg-white: var(--card-background);
    --border-color: var(--light-gray);
    --success-color: var(--soft-green-accent);
    --error-color: #EF4444;

    /* Shadows (subtle, clean) */
    --shadow-sm: 0 1px 2px 0 rgba(31, 42, 46, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(31, 42, 46, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(31, 42, 46, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(31, 42, 46, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--dark-graphite);
    background-color: var(--app-background);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: var(--card-background);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--ultra-light-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo {
    height: 80px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-graphite);
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-link-login {
    color: var(--text-light) !important;
}

.nav-link-cta {
    background: var(--primary-teal);
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
    transition: background 0.3s;
}

.nav-link-cta:hover {
    background: var(--primary-teal-light);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s;
}

/* Hero */
.hero {
    background: var(--app-background);
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-teal);
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-teal);
    color: white;
    border: none;
}

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

.btn-secondary {
    background: var(--secondary-background);
    color: var(--primary-teal);
    border: 1px solid var(--light-gray);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-teal);
    border: 1px solid var(--light-gray);
}

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

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 60px;
}

/* Features */
.features {
    background: var(--card-background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.feature-card {
    background: var(--card-background);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--ultra-light-border);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--light-gray);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Pricing */
.pricing {
    background: var(--bg-light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.pricing-card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 40px 32px;
    border: 1px solid var(--ultra-light-border);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border: 2px solid var(--primary-teal);
    transform: scale(1.02);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--soft-green-accent);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

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

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

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

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-teal);
}

.period {
    color: var(--text-light);
    font-size: 1rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--ultra-light-border);
    color: var(--dark-graphite);
}

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

.pricing-card .btn {
    width: 100%;
    text-align: center;
}

/* CTA */
.cta {
    background: var(--primary-teal);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: white;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.9;
}

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

.cta .btn-primary:hover {
    background: var(--secondary-background);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    height: 80px;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
}

.footer-section h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 32px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .pricing-card.featured {
        transform: scale(1);
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        gap: 40px;
    }
}