/* ==========================================
   SETELOC INTERNATIONAL - MAIN STYLES
   Modern, Clean, DiDi-inspired Design
   ========================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #ce6400;
    --primary-dark: #a45000;
    --primary-light: #e87b1a;
    --secondary: #00D4AA;
    --dark: #0A0A0A;
    --dark-gray: #1A1A1A;
    --medium-gray: #333333;
    --light-gray: #666666;
    --lighter-gray: #999999;
    --border-gray: #E5E5E5;
    --bg-light: #F5F7FA;
    --white: #FFFFFF;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
}

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

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

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

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

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

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-full {
    width: 100%;
}

/* ==========================================
   HEADER
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: 12px 0;
}

.header.scrolled .logo-img {
    filter: brightness(0) saturate(100%) invert(33%) sepia(96%) saturate(1542%) hue-rotate(360deg) brightness(94%) contrast(95%);
}

.header.scrolled .nav-links a {
    color: var(--dark);
}

.header.scrolled .logo-text {
    color: var(--dark);
}

.header.scrolled .lang-switch {
    color: var(--dark);
    border-color: var(--border-gray);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--white);
    transition: color var(--transition-normal);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.lang-switch:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

.lang-icon {
    width: 18px;
    height: 18px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.header.scrolled .mobile-menu-btn span {
    background: var(--dark);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0A0A0A 0%, #1A1A2E 50%, #0A0A0A 100%);
    z-index: -2;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 212, 170, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(0, 102, 255, 0.1) 0%, transparent 40%);
}

.hero-content {
    max-width: 700px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    max-width: 560px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 4px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.5);
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ==========================================
   SECTIONS COMMON
   ========================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--dark);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--light-gray);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-content {
    padding-right: 40px;
}

.about-text {
    font-size: 1.1rem;
    color: var(--light-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--primary);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

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

.feature-card h3 {
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--light-gray);
}

/* ==========================================
   SERVICES SECTION
   ========================================== */
.services {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    padding: 40px 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.service-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--white);
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--light-gray);
    line-height: 1.6;
}

/* ==========================================
   FLEET SECTION
   ========================================== */
.fleet {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.fleet-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.fleet-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.fleet-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.fleet-image {
    height: 200px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #E8EEF5 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.fleet-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.fleet-image-placeholder {
    width: 80px;
    height: 80px;
    color: var(--primary);
}

.fleet-image-placeholder svg {
    width: 100%;
    height: 100%;
}

.fleet-card h3 {
    font-size: 1.25rem;
    color: var(--dark);
    padding: 24px 24px 8px;
}

.fleet-card p {
    font-size: 0.95rem;
    color: var(--light-gray);
    padding: 0 24px 24px;
}

/* ==========================================
   INDUSTRIES SECTION
   ========================================== */
.industries {
    padding: var(--section-padding) 0;
    background: var(--dark);
}

.industries .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.industries .section-title {
    color: var(--white);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.industry-card {
    padding: 48px 32px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.industry-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.industry-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.industry-card h3 {
    font-size: 1.25rem;
    color: var(--white);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 16px;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.contact-text {
    font-size: 1.1rem;
    color: var(--light-gray);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--primary);
    margin-top: 4px;
}

.contact-item strong {
    display: block;
    font-size: 0.9rem;
    color: var(--lighter-gray);
    margin-bottom: 4px;
}

.contact-item span {
    font-size: 1.1rem;
    color: var(--dark);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--white);
    border-radius: 50%;
    color: var(--light-gray);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-4px);
}

.social-links svg {
    width: 22px;
    height: 22px;
}

/* Contact Map & Clients */
.contact-map-wrapper {
    background: var(--white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.clients-section h3 {
    font-size: 1.75rem;
    color: var(--dark);
    margin-bottom: 32px;
}

.clients-stats {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.client-stat {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.client-stat:hover {
    background: rgba(206, 100, 0, 0.05);
    transform: translateX(8px);
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

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

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--light-gray);
    margin-top: 4px;
}

.brazil-map {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.brazil-map img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    padding: 80px 0 40px;
    background: var(--dark);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    margin-bottom: 16px;
}

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

.footer-tagline {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    gap: 80px;
    justify-content: flex-end;
}

.footer-column h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 32px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ==========================================
   MOBILE RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-content {
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        color: var(--dark);
        font-size: 1.1rem;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 32px;
    }
    
    .stat-item {
        flex: 1 1 45%;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .fleet-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-map-wrapper {
        padding: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-links {
        justify-content: flex-start;
        gap: 48px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        flex: 1 1 100%;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scroll offset for fixed header */
html {
    scroll-padding-top: 100px;
}