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

:root {
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --secondary: #10B981;
    --dark: #1F2937;
    --gray: #6B7280;
    --light-gray: #F3F4F6;
    --white: #FFFFFF;
    --gradient: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

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

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--dark);
    text-decoration: none;
}

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

.nav__menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

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

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

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
}

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

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

.btn--secondary {
    background: var(--light-gray);
    color: var(--dark);
}

.btn--secondary:hover {
    background: var(--dark);
    color: var(--white);
}

.btn--outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero__cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary);
}

.stat__label {
    font-size: 0.9rem;
    color: var(--gray);
}

.hero__mockup {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mockup-phone {
    width: 300px;
    padding: 20px;
    background: var(--dark);
    border-radius: 40px;
    box-shadow: var(--shadow-lg);
}

.mockup-screen {
    background: var(--white);
    border-radius: 30px;
    overflow: hidden;
    aspect-ratio: 9/16;
}

.mockup-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mockup-qr {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--white);
    padding: 10px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.mockup-qr img {
    width: 100%;
    height: 100%;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 1rem;
}

.section__subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    text-align: center;
    margin-bottom: 4rem;
}

/* Features Section */
.features {
    background: var(--light-gray);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card__description {
    color: var(--gray);
    line-height: 1.8;
}

/* How It Works Section */
.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.step__number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
}

.step__title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.step__description {
    color: var(--gray);
    line-height: 1.8;
}

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

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: scale(1.05);
}

.pricing-card--featured {
    border: 3px solid var(--primary);
    transform: scale(1.05);
}

.pricing-card__badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card__name {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pricing-card__price {
    margin-bottom: 1rem;
}

.price-amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
}

.price-period {
    color: var(--gray);
}

.pricing-card__description {
    color: var(--gray);
    margin-bottom: 2rem;
}

.pricing-card__features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-card__features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--light-gray);
}

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

/* Demo Section */
.demo {
    background: var(--dark);
    color: var(--white);
}

.demo .section__title,
.demo .section__subtitle {
    color: var(--white);
}

.demo__cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.demo-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
}

.demo-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.demo-link {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 1.2rem;
    margin: 1rem 0;
}

.qr-code {
    margin: 2rem auto;
    width: 200px;
    height: 200px;
    background: var(--white);
    border-radius: 20px;
    padding: 20px;
}

.demo-credentials {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
}

/* CTA Section */
.cta {
    background: var(--gradient);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

.cta__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta__subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.footer__description {
    color: var(--gray);
    line-height: 1.8;
}

.footer__col h4 {
    margin-bottom: 1rem;
}

.footer__col ul {
    list-style: none;
}

.footer__col a {
    color: var(--gray);
    text-decoration: none;
    display: block;
    padding: 0.5rem 0;
    transition: color 0.3s;
}

.footer__col a:hover {
    color: var(--white);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--gray);
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social a {
    font-size: 1.5rem;
    text-decoration: none;
    transition: transform 0.3s;
}

.footer__social a:hover {
    transform: scale(1.2);
}

/* Responsive */
@media (max-width: 768px) {
    .nav__menu {
        display: none;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__cta {
        flex-direction: column;
    }
    
    .hero__stats {
        grid-template-columns: 1fr;
    }
    
    .features__grid {
        grid-template-columns: 1fr;
    }
    
    .pricing__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
    }
}