/* =============================================
   MELIORO systems - Landing Page Styles
   ============================================= */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #0f2744;
    --color-primary-light: #1a3a5c;
    --color-secondary: #0d9488;
    --color-secondary-light: #14b8a6;
    --color-secondary-dark: #0a7569;
    --color-accent: #f97316;
    --color-accent-hover: #ea580c;
    
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-text-inverse: #ffffff;
    
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #0f2744;
    
    --color-border: #e2e8f0;
    
    /* Typography */
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --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);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    color: var(--color-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p {
    color: var(--color-text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-secondary);
    color: var(--color-text-inverse);
}

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

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn-header {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* =============================================
   HEADER
   ============================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    font-weight: 800;
    text-decoration: none;
}

.logo-melioro {
    font-size: 1.5rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-systems {
    font-size: 1rem;
    color: var(--color-secondary);
    font-weight: 500;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.lang-switcher {
    display: flex;
    gap: var(--space-xs);
    padding: 0.25rem;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.lang-link {
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-link:hover {
    color: var(--color-primary);
}

.lang-link.active {
    background: var(--color-bg);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* =============================================
   HERO
   ============================================= */
.hero {
    position: relative;
    padding: calc(72px + var(--space-4xl)) 0 var(--space-4xl);
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-secondary-light) 0%, var(--color-secondary) 100%);
    color: var(--color-text-inverse);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-lg);
}

.hero-headline {
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    max-width: 540px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.hero-visual {
    position: relative;
    height: 400px;
}

.hero-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.hero-card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.hero-card-2 {
    top: 40%;
    right: 5%;
    animation-delay: -2s;
}

.hero-card-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: -4s;
}

.hero-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.1) 0%, rgba(13, 148, 136, 0.05) 100%);
    color: var(--color-secondary);
    border-radius: var(--radius-md);
}

.hero-card-text {
    font-weight: 600;
    color: var(--color-primary);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, rgba(13, 148, 136, 0.1) 100%);
    border-radius: 0 0 0 40%;
    z-index: -1;
}

/* =============================================
   SECTIONS - General
   ============================================= */
.section {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
}

/* =============================================
   PROBLEM SECTION
   ============================================= */
.problem {
    background: var(--color-bg-alt);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.problem-card {
    padding: var(--space-xl);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.problem-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.1) 0%, rgba(13, 148, 136, 0.05) 100%);
    color: var(--color-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.problem-card h3 {
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.problem-card p {
    font-size: 0.9375rem;
}

/* =============================================
   TEAM SECTION
   ============================================= */
.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.team-card {
    padding: var(--space-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.team-card:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-lg);
}

.team-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.team-avatar {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-inverse);
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: var(--radius-lg);
}

.team-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.team-role {
    color: var(--color-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
}

.team-highlights {
    margin-bottom: var(--space-lg);
}

.team-highlights li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.team-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 6px;
    height: 6px;
    background: var(--color-secondary);
    border-radius: 50%;
}

.team-linkedin {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.team-linkedin:hover {
    color: var(--color-secondary-dark);
}

/* References */
.references {
    text-align: center;
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--color-border);
}

.references-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.references-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2xl);
}

.reference-logo {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text-light);
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.reference-logo:hover {
    opacity: 1;
}

/* =============================================
   SERVICES SECTION
   ============================================= */
.services {
    background: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.service-card {
    padding: var(--space-xl);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.service-number {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-md);
}

.service-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.service-card p {
    font-size: 0.9375rem;
}

/* =============================================
   AUDIT SECTION
   ============================================= */
.audit {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-inverse);
}

.audit-wrapper {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-3xl);
    align-items: center;
}

.audit-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-text-inverse);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-lg);
}

.audit-title {
    color: var(--color-text-inverse);
    margin-bottom: var(--space-md);
}

.audit-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
}

.audit-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    color: rgba(255, 255, 255, 0.9);
}

.check-icon {
    flex-shrink: 0;
    color: var(--color-secondary-light);
    margin-top: 2px;
}

.audit-price-card {
    background: var(--color-bg);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.audit-price {
    margin-bottom: var(--space-md);
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-note {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

.audit-price-description {
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.audit-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

.audit-guarantee svg {
    color: var(--color-secondary);
    flex-shrink: 0;
}

/* =============================================
   FULLSERVICE SECTION
   ============================================= */
.fullservice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.fullservice-card {
    padding: var(--space-xl);
    text-align: center;
}

.fullservice-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.1) 0%, rgba(13, 148, 136, 0.05) 100%);
    color: var(--color-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.fullservice-card h3 {
    margin-bottom: var(--space-sm);
}

.fullservice-card p {
    font-size: 0.9375rem;
}

.fullservice-note {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl);
    background: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    text-align: center;
}

.fullservice-note p {
    font-size: 1rem;
    color: var(--color-text);
}

/* =============================================
   RESULTS SECTION
   ============================================= */
.results {
    background: var(--color-bg-alt);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.result-card {
    padding: var(--space-xl);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.result-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.1) 0%, rgba(13, 148, 136, 0.05) 100%);
    color: var(--color-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.result-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.result-card p {
    font-size: 0.9375rem;
}

/* =============================================
   CTA SECTION
   ============================================= */
.cta {
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, rgba(13, 148, 136, 0.05) 100%);
}

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

.cta-title {
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--space-2xl);
}

.cta-buttons {
    margin-bottom: var(--space-3xl);
}

.cta-contacts {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.contact-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-inverse);
    font-weight: 700;
    border-radius: var(--radius-md);
}

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

.contact-info strong {
    display: block;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.contact-info a {
    display: block;
    color: var(--color-text-light);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.contact-info a:hover {
    color: var(--color-secondary);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-xl);
}

.footer-brand .logo {
    margin-bottom: var(--space-md);
}

.footer-brand .logo-melioro {
    color: var(--color-text-inverse);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
}

.footer-links {
    display: flex;
    gap: var(--space-3xl);
}

.footer-links h4 {
    color: var(--color-text-inverse);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.footer-contact p {
    margin-bottom: var(--space-sm);
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-contact a:hover {
    color: var(--color-secondary-light);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.875rem;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-bg {
        width: 100%;
        border-radius: 0;
        opacity: 0.5;
    }
    
    .problem-grid,
    .services-grid,
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .audit-wrapper {
        grid-template-columns: 1fr;
    }
    
    .fullservice-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }
    
    .header-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        min-height: auto;
        padding: calc(72px + var(--space-2xl)) 0 var(--space-2xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .problem-grid,
    .services-grid,
    .results-grid,
    .team-grid,
    .fullservice-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-contacts {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .contact-card {
        width: 100%;
        justify-content: center;
    }
    
    .footer-inner {
        flex-direction: column;
        gap: var(--space-2xl);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .references-logos {
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .price-amount {
        font-size: 2.5rem;
    }
    
    .lang-switcher {
        gap: 0;
    }
    
    .lang-link {
        padding: 0.25rem 0.5rem;
    }
}

/* =============================================
   MOBILE MENU (for JS toggle)
   ============================================= */
.header-nav.mobile-open {
    display: flex;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: var(--space-2xl);
    gap: var(--space-xl);
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.header-nav.mobile-open .lang-switcher {
    margin-bottom: var(--space-md);
}

.header-nav.mobile-open .btn-header {
    width: 100%;
    max-width: 300px;
    padding: 1rem;
    font-size: 1rem;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}