/* ========================================
   NEXTLABOR - MODERN CSS
   Inspired by Micromed.health
   ======================================== */

/* ========================================
   RESET & BASE
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Professional palette */
    --primary-blue: #0066ff;
    --primary-dark: #0052cc;
    --navy: #1e293b;
    --navy-dark: #0f172a;
    --charcoal: #32373c;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-600: #475569;
    --gray-800: #1e293b;
    --white: #ffffff;
    --black: #000000;

    /* Spacing tokens (from Micromed) */
    --spacing-20: 0.44rem;
    --spacing-30: 0.67rem;
    --spacing-40: 1rem;
    --spacing-50: 1.5rem;
    --spacing-60: 2.25rem;
    --spacing-70: 3.38rem;
    --spacing-80: 5.06rem;

    /* Typography */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Font sizes */
    --text-sm: 13px;
    --text-base: 16px;
    --text-md: 20px;
    --text-lg: 36px;
    --text-xl: 42px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    color: var(--charcoal);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-50);
}

/* ========================================
   HEADER - STICKY NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-40) var(--spacing-50);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-50);
}

/* Logo */
.logo-text {
    font-family: var(--font-primary);
    font-size: 28px;
    font-weight: 600;
    color: var(--navy-dark);
    text-decoration: none;
}

.logo-text strong {
    color: var(--primary-blue);
    font-weight: 800;
}

.logo a {
    text-decoration: none;
}

/* Navigation */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-60);
    align-items: center;
}

.nav-menu a {
    color: var(--charcoal);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition);
}

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

.nav-menu a:hover::after {
    width: 100%;
}

/* Header Actions */
.btn-header {
    background: var(--primary-blue);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-header:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 102, 255, 0.3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--charcoal);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-50);
}

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

.hero h1 {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: var(--spacing-50);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: var(--spacing-60);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-40);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-secondary);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 16px;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--charcoal);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-block {
    width: 100%;
}

.whatsapp-icon {
    width: 20px;
    height: 20px;
}

/* ========================================
   PROBLEMS SECTION
   ======================================== */
.problems {
    padding: var(--spacing-80) 0;
    background: var(--gray-100);
}

.section-title {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--navy-dark);
    text-align: center;
    margin-bottom: var(--spacing-60);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    text-align: center;
    margin-bottom: var(--spacing-60);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-50);
    margin-bottom: var(--spacing-60);
}

.problem-card {
    background: var(--white);
    padding: var(--spacing-50);
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
    border-top: 4px solid var(--primary-blue);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.problem-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-40);
}

.problem-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-blue);
}

.problem-card h3 {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin-bottom: var(--spacing-30);
    line-height: 1.3;
}

.problem-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

.solution-highlight {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    padding: var(--spacing-60);
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.3);
}

.solution-highlight p {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    color: var(--white);
    font-weight: 500;
    line-height: 1.5;
}

.solution-highlight strong {
    font-weight: 800;
}

/* ========================================
   HOW IT WORKS SECTION
   ======================================== */
.how-it-works {
    padding: var(--spacing-80) 0;
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-50);
}

.step-card {
    background: var(--gray-100);
    padding: var(--spacing-60) var(--spacing-50);
    border-radius: 16px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.step-card:hover::before {
    transform: scaleX(1);
}

.step-card:hover {
    background: var(--white);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    transform: translateY(-8px);
}

.step-number {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: var(--spacing-30);
}

.step-icon {
    width: 64px;
    height: 64px;
    background: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-40);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.step-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-blue);
}

.step-card h3 {
    font-family: var(--font-primary);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin-bottom: var(--spacing-30);
    line-height: 1.3;
}

.step-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   PRODUCTS SECTION
   ======================================== */
.products {
    padding: var(--spacing-80) 0;
    background: var(--gray-100);
}

.products-grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-50);
}

.product-category {
    background: var(--white);
    padding: var(--spacing-60) var(--spacing-50);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 2px solid transparent;
}

.product-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-blue);
}

.category-icon-large {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-40);
}

.category-icon-large svg {
    width: 40px;
    height: 40px;
    color: var(--primary-blue);
}

.product-category h3 {
    font-family: var(--font-primary);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin-bottom: var(--spacing-30);
    line-height: 1.3;
}

.product-category p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-40);
    line-height: 1.6;
}

.link-arrow {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
}

.link-arrow:hover {
    color: var(--primary-dark);
    gap: 8px;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    padding: var(--spacing-80) 0;
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
}

.contact h2 {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-40);
    line-height: 1.2;
}

.contact p {
    color: var(--gray-300);
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-60);
    align-items: center;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-50);
    margin-top: var(--spacing-50);
}

.contact-method {
    display: flex;
    gap: var(--spacing-40);
    align-items: flex-start;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 102, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.contact-method h4 {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.contact-method a {
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--charcoal);
    padding: var(--spacing-70) 0 var(--spacing-50);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-60);
    margin-bottom: var(--spacing-60);
}

.footer-logo {
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-40);
}

.footer-logo strong {
    color: var(--primary-blue);
    font-weight: 800;
}

.footer-col p {
    color: var(--gray-400);
    line-height: 1.7;
}

.footer-col h4 {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-40);
}

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

.footer-col li {
    margin-bottom: var(--spacing-30);
}

.footer-col a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
    font-size: 15px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-50);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 14px;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .header-container {
        padding: var(--spacing-40);
    }

    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 0 60px;
    }

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

    .btn {
        width: 100%;
    }

    .problems-grid,
    .steps-grid,
    .products-grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-50);
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: var(--spacing-40) var(--spacing-40);
    }

    .logo-text {
        font-size: 24px;
    }

    .section-title {
        font-size: 1.875rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Scroll animations handled by JavaScript */