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

:root {
    /* Color Palette */
    --color-primary: #1e3a8a;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-accent: #60a5fa;
    --color-bg-dark: #0f172a;
    --color-bg-light: #f8fafc;
    --color-bg-gray: #f1f5f9;
    --color-text-dark: #1e293b;
    --color-text-gray: #64748b;
    --color-text-light: #94a3b8;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --color-whatsapp: #25D366;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-2xl: 3rem;
    --font-size-3xl: 4rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    position: relative;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.logo-container {
    margin-bottom: var(--spacing-md);
    animation: logoFloat 3s ease-in-out infinite;
}

.logo {
    width: 180px;
    height: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: var(--font-size-xl);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.hero-description {
    font-size: var(--font-size-md);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-bg-gray);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

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

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

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-bg-gray);
    font-size: var(--font-size-xs);
    animation: fadeIn 2s ease-out 1s both;
}

.scroll-indicator {
    width: 30px;
    height: 50px;
    border: 2px solid var(--color-bg-gray);
    border-radius: 20px;
    margin: var(--spacing-xs) auto 0;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background-color: var(--color-bg-gray);
    border-radius: 50%;
    animation: scrollDot 2s infinite;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: var(--font-size-md);
    color: var(--color-text-gray);
}

/* Services Section */
.services {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid var(--color-border);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.service-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-gray);
    line-height: 1.7;
}

.services-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.highlight {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-success);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-md);
    display: inline-block;
}

/* Use Cases Section */
.use-cases {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
    position: relative;
}

.use-cases-nav {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.use-case-nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-primary);
    background-color: var(--color-white);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.use-case-nav-btn:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: scale(1.1);
}

.use-case-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.use-case-nav-btn svg {
    width: 24px;
    height: 24px;
}

.use-cases-carousel-container {
    overflow: hidden;
    position: relative;
    max-width: 100%;
}

.use-cases-carousel {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--spacing-md);
}

.use-cases-carousel::-webkit-scrollbar {
    display: none;
}

.use-case-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    flex: 0 0 calc(100% - var(--spacing-lg) * 2);
    scroll-snap-align: center;
    max-width: 800px;
    margin: 0 var(--spacing-lg);
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.use-case-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.use-case-icon svg {
    width: 36px;
    height: 36px;
    color: var(--color-white);
}

.use-case-tag {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.use-case-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.use-case-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.challenge,
.solution,
.result {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid;
}

.challenge {
    background-color: #fef3c7;
    border-left-color: #f59e0b;
}

.challenge h4 {
    color: #92400e;
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.challenge p {
    color: #78350f;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin: 0;
}

.solution {
    background-color: #dbeafe;
    border-left-color: var(--color-primary-light);
}

.solution h4 {
    color: #1e3a8a;
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.solution p {
    color: #1e40af;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin: 0;
}

.result {
    background-color: #d1fae5;
    border-left-color: var(--color-success);
}

.result h4 {
    color: #065f46;
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result p {
    color: #047857;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin: 0;
}

/* About Section */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: var(--font-size-md);
    color: var(--color-text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-text .lead {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-dark);
}

.about-features {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background-color: var(--color-bg-gray);
    border-radius: var(--radius-lg);
}

.about-features h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.feature-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.feature-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: var(--font-size-lg);
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.feature-text p {
    font-size: var(--font-size-xs);
    color: var(--color-text-gray);
    margin: 0;
}

.about-closing {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
}

.contact .section-header h2,
.contact .section-header p {
    color: var(--color-white);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-card:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.contact-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-white);
}

.contact-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.contact-card a {
    color: var(--color-white);
    text-decoration: none;
    font-size: var(--font-size-md);
    display: block;
    margin-top: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.contact-card a:hover {
    color: var(--color-accent);
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-whatsapp);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    margin-top: var(--spacing-sm);
    transition: all var(--transition-base);
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: scale(1.05);
    color: var(--color-white);
}

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

.contact-cta {
    display: flex;
    align-items: center;
}

.cta-box {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cta-box h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.cta-box p {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* Footer */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-footer {
    width: 100px;
    height: auto;
    opacity: 0.8;
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.footer-info p {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    margin: 0.25rem 0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes scrollDot {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 0.5;
        transform: translateX(-50%) translateY(20px);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(30px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2.5rem;
        --font-size-2xl: 2rem;
        --font-size-xl: 1.5rem;
        --font-size-lg: 1.25rem;
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-tagline {
        font-size: var(--font-size-lg);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

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

    .logo {
        width: 140px;
    }

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

    .use-case-card {
        flex: 0 0 calc(100% - var(--spacing-md) * 2);
        max-width: 100%;
        margin: 0 var(--spacing-md);
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
        --font-size-xl: 1.25rem;
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }

    .service-card,
    .contact-card,
    .cta-box {
        padding: var(--spacing-md);
    }

    .use-case-card {
        flex: 0 0 calc(100% - var(--spacing-sm) * 2);
        max-width: 100%;
        padding: var(--spacing-md);
        margin: 0 var(--spacing-sm);
    }

    .use-case-icon {
        width: 60px;
        height: 60px;
    }

    .use-case-icon svg {
        width: 30px;
        height: 30px;
    }

    .use-case-nav-btn {
        width: 40px;
        height: 40px;
    }

    .use-case-nav-btn svg {
        width: 20px;
        height: 20px;
    }
}

/* Print Styles */
@media print {
    .hero-scroll,
    .btn-whatsapp {
        display: none;
    }
}

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

    html {
        scroll-behavior: auto;
    }
}

/* Focus Styles */
a:focus,
button:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}