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

:root {
    /* Colors */
    --primary: #1A3A52;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --accent: #f59e0b;
    --text-dark: #0f172a;
    --text-medium: #334155;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border: #e2e8f0;
    --success: #10b981;
    
    /* Typography */
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-base);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.menu-open {
    overflow: hidden;
}

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-medium);
}

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

/* ===========================
   LAYOUT
   =========================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-3xl) 0;
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-2xl) 0;
    }
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: #FFFFFF;
    border: 2px solid #FFFFFF;
}

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

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

/* ===========================
   HEADER
   =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: white;
    border-bottom: 1px solid var(--border);
    transition: transform var(--transition-base);
}

.header.scroll-down {
    transform: translateY(-100%);
}

.header.scroll-up {
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: var(--spacing-md);
}

.logo a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-desktop {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-desktop a {
    font-weight: 500;
    color: var(--text-medium);
    position: relative;
}

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

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
}

.lang-btn {
    padding: 0.5rem;
    background: transparent;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.25rem;
    line-height: 1;
}

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

.lang-btn.active {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-mobile {
    display: none;
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: white;
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    overflow-y: auto;
}

.nav-mobile.active {
    display: flex;
}

.nav-mobile a {
    font-size: 1.125rem;
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    color: var(--text-dark);
}

.mobile-lang-divider {
    height: 1px;
    background-color: var(--border);
    margin: var(--spacing-sm) 0;
}

.mobile-lang-switcher {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: transparent;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-base);
}

.mobile-lang-btn:hover {
    border-color: var(--primary);
    background-color: var(--bg-light);
}

.mobile-lang-btn.active {
    border-color: var(--primary);
    background-color: var(--primary-light);
    color: white;
}

@media (max-width: 1024px) {
    .nav-desktop {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 640px) {
    .header-actions .btn {
        display: none;
    }
}

/* ===========================
   HERO SECTION
   =========================== */
.hero {
    padding-top: calc(var(--spacing-3xl) + 73px);
    padding-bottom: var(--spacing-3xl);
    background-image: url("1.jpg");
}

.hero-content {
    max-width: 900px;
}

.hero h1 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--bg-white);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

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

@media (max-width: 640px) {
    .hero {
        padding-top: calc(var(--spacing-2xl) + 73px);
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ===========================
   TRUST STRIP - SECTORS
   =========================== */
.trust-strip {
    background-color: #E8ECF0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 48px 0;
}

.trust-label {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.sector-card {
    background: #fff;
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s;
}

.sector-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    background: rgba(44, 95, 124, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sector-card p {
    font-weight: 500;
    color: var(--text-dark);
    margin: 0;
}

/* ===========================
   INTRO SECTION
   =========================== */
.intro-section {
    background-color: white;
    padding: var(--spacing-3xl) 0;
}

.intro-content {
    max-width: 1000px;
    margin: 0 auto;
}

.intro-content h2 {
    color: var(--primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.intro-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.intro-text p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-medium);
}

@media (max-width: 768px) {
    .intro-text p {
        font-size: 1rem;
    }
}

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

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: 0;
}

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

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

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

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(44, 95, 124, 0.1);
    border-radius: var(--radius-lg);
    color: #2C5F7C;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.service-card p {
    color: var(--text-medium);
    margin-bottom: 0;
    line-height: 1.7;
}

/* ===========================
   APPROACH SECTION
   =========================== */
.approach {
    background-color: white;
}

.approach-content {
    max-width: 1000px;
    margin: 0 auto;
}

.approach-text h2 {
    color: var(--primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.approach-text p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 768px) {
    .approach-text p {
        font-size: 1rem;
    }
}

/* ===========================
   COMMITMENTS SECTION
   =========================== */
.commitments {
    background-color: var(--bg-light);
}

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

.commitment-card {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.commitment-icon {
    color: var(--success);
}

.commitment-card p {
    color: var(--text-medium);
    margin: 0;
    line-height: 1.7;
}

/* ===========================
   CONTACT CTA SECTION
   =========================== */
.contact-cta {
    background-image: url("2.jpg");
    color: white;
    text-align: center;
}

.contact-cta h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.contact-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-cta .btn-primary {
    background-color: white;
    color: var(--primary);
    margin-bottom: var(--spacing-2xl);
}

.contact-cta .btn-primary:hover {
    background-color: var(--bg-light);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-info-item h3 {
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.contact-info-item p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-col h3, .footer-col h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-description, .footer-address {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

.footer-links, .footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a, .footer-contact li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: white;
}

.footer-social a {
    color: var(--primary-light);
    font-weight: 500;
}

.footer-lang {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-lang button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.9375rem;
}

.footer-lang button:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.footer-lang button.active {
    background: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

.footer-legal a:hover {
    color: white;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ===========================
   CLIENTS & PARTNERS PAGE
   =========================== */
.page-hero {
    padding-top: calc(var(--spacing-2xl) + 73px);
    padding-bottom: var(--spacing-2xl);
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    text-align: center;
}

.page-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-hero h1 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.page-hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 0;
}

.content-section {
    padding: var(--spacing-2xl) 0;
}

.content-section.bg-light {
    background-color: var(--bg-light);
}

.content-card {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.content-section.bg-light .content-card {
    background-color: white;
}

.content-card-full {
    max-width: 1000px;
    margin: 0 auto;
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.content-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: var(--spacing-lg);
}

.content-icon-center {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-lg);
    color: white;
    margin: 0 auto var(--spacing-lg);
}

.content-card h2,
.content-card-full h2 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.content-card p,
.content-card-full > p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-medium);
    margin-bottom: 0;
}

.content-card-full h2 {
    text-align: center;
}

.content-card-full > p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.commitments-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.commitments-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
}

.commitments-list li svg {
    flex-shrink: 0;
    color: var(--success);
    margin-top: 2px;
}

.commitments-list li span {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-medium);
}

/* Active navigation link */
.nav-desktop a.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-desktop a.active::after {
    width: 100%;
}

.nav-mobile a.active {
    color: var(--primary);
    font-weight: 600;
}

@media (max-width: 768px) {
    .page-hero {
        padding-top: calc(var(--spacing-xl) + 73px);
        padding-bottom: var(--spacing-xl);
    }
    
    .page-hero-subtitle {
        font-size: 1rem;
    }
    
    .content-section {
        padding: var(--spacing-xl) 0;
    }
    
    .content-card,
    .content-card-full {
        padding: var(--spacing-lg);
    }
    
    .content-card p,
    .content-card-full > p {
        font-size: 1rem;
    }
}