/* ===== VARIABLES ===== */
:root {
    --primary-color: #001a66;
    --primary-dark: #000d33;
    --primary-light: #002b99;
    --accent-color: #0047AB;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --text-white: #ffffff;
    --bg-white: #ffffff;
    --bg-gray: #f8f9fa;
    --bg-dark: #0a0a0a;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Roboto', 'San Francisco', 'Segoe UI', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    padding: 0;
}

.navbar.scrolled .nav-content {
    padding: 10px 0;
}

.navbar.scrolled .logo {
    font-size: 20px;
}

.navbar.scrolled .logo-image {
    width: 30px;
    height: 30px;
}

.navbar.scrolled .nav-menu a {
    font-size: 14px;
}

.navbar.scrolled .lang-btn {
    padding: 4px 8px;
    font-size: 11px;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    font-size: 28px;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

.logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    color: var(--primary-color);
    letter-spacing: -1px;
}

.logo-sub {
    color: var(--text-dark);
    font-size: 16px;
    font-weight: 400;
    margin-left: -8px;
}

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

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

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

.nav-menu a:not(.btn-contact)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:not(.btn-contact):hover::after {
    width: 100%;
}

.btn-contact {
    padding: 10px 24px;
    background: var(--primary-color);
    color: var(--text-white) !important;
    border-radius: 8px;
    transition: var(--transition);
}

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

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 8px;
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
    color: var(--text-dark);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

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

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 50%, #e8eef7 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(0, 26, 102, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 71, 171, 0.05) 0%, transparent 50%);
}

.hero-content {
    max-width: 900px;
    padding: 80px 0;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.hero-title-main {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1.1;
    letter-spacing: -2px;
}

.hero-title-sub {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    color: var(--text-dark);
    line-height: 1.2;
}

.hero-slogan {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-weight: 600;
    color: var(--primary-color);
    font-style: italic;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.hero-description {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 700px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.btn {
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== SECTION COMMON ===== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 26, 102, 0.1);
    color: var(--primary-color);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.15rem;
    color: var(--text-light);
    line-height: 1.7;
}

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

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

.service-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 24px 20px;
    transition: var(--transition);
}

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

.service-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 26, 102, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary-color);
    color: var(--text-white);
    transform: scale(1.1);
}

.service-icon svg {
    width: 26px;
    height: 26px;
}

.service-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.service-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 14px;
    font-size: 0.9rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 6px 0;
    color: var(--text-light);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-features li::before {
    content: '→';
    color: var(--primary-color);
    font-weight: bold;
}

/* ===== APPROACH SECTION ===== */
.approach {
    background: var(--bg-gray);
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 60px;
    position: relative;
}

.approach-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.approach-card:not(:last-child)::after {
    content: '→';
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    z-index: 2;
}

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

.approach-card:hover .approach-number {
    color: var(--primary-color);
}

.approach-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(0, 26, 102, 0.15);
    line-height: 1;
    margin-bottom: 16px;
    transition: var(--transition);
}

.approach-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.approach-description {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== PARTNERS/BRANDS SECTION ===== */
.partners {
    background: var(--bg-white);
    overflow: hidden;
    padding-top: 0;
}

.brands-slider {
    width: 100%;
    overflow: hidden;
    padding: 40px 0;
}

.brands-track {
    display: flex;
    gap: 80px;
    animation: scroll 30s linear infinite;
}

.brand-logo {
    flex-shrink: 0;
    width: 180px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    transition: var(--transition);
}

.brand-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.brand-logo:hover img {
    transform: scale(1.05);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-180px * 10 - 80px * 10));
    }
}

/* ===== WHY CHOOSE SECTION ===== */
.why-choose {
    background: var(--bg-gray);
}

.why-choose-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

.feature-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feature-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.feature-content h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.feature-content p {
    color: var(--text-light);
    line-height: 1.6;
}

.why-choose-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.why-choose-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    object-fit: contain;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 20px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    background: rgba(0, 26, 102, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.contact-details p {
    color: var(--text-light);
    line-height: 1.6;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 26, 102, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== ABOUT PAGE ===== */
.about-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    text-align: center;
}

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

.page-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.page-subtitle {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 300;
    opacity: 0.9;
}

.about-content {
    padding: 100px 0 60px;
    background: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.about-intro .section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 30px;
    color: var(--primary-color);
}

.lead-text {
    font-size: clamp(1.2rem, 2vw, 1.4rem);
    font-weight: 500;
    line-height: 1.7;
    color: var(--text-dark);
    margin-bottom: 20px;
}

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

.about-values {
    background: var(--bg-gray);
    padding: 50px;
    border-radius: 16px;
}

.values-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 40px;
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.value-item {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.value-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
}

.value-icon svg {
    width: 28px;
    height: 28px;
}

.value-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
}

.value-item p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-light);
}

.about-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.expertise-card,
.experience-card,
.certifications-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.expertise-card:hover,
.experience-card:hover,
.certifications-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.expertise-card h3,
.experience-card h3,
.certifications-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.expertise-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.expertise-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.expertise-list svg {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.experience-stats {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    background: var(--bg-gray);
    border-radius: 12px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 8px;
}

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

.cert-list li {
    padding: 12px 16px;
    background: var(--bg-gray);
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-dark);
    border-left: 3px solid var(--primary-color);
}

.about-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
}

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

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.2rem;
    line-height: 1.7;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.about-cta .btn-primary,
.about-cta .btn-secondary {
    background: var(--text-white);
    color: var(--primary-color);
    border: 2px solid var(--text-white);
}

.about-cta .btn-primary:hover,
.about-cta .btn-secondary:hover {
    background: transparent;
    color: var(--text-white);
    border-color: var(--text-white);
}

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

/* Responsive About Page */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .approach-card:not(:last-child)::after {
        display: none;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-hero {
        padding: 120px 0 60px;
    }

    .about-content {
        padding: 60px 0;
    }

    .about-values {
        padding: 30px 20px;
    }

    .about-cta {
        padding: 60px 0;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-buttons .btn {
        width: 100%;
    }
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 20px 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.footer-left {
    flex: 1;
    max-width: 500px;
    display: flex;
    align-items: center;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-weight: 900;
    font-size: 24px;
    flex-shrink: 0;
}

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

.footer-logo .logo-sub {
    color: rgba(255, 255, 255, 0.7);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    font-size: 13px;
}

.footer-nav {
    display: flex;
    gap: 30px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-size: 14px;
}

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

.footer-copyright {
    text-align: right;
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .why-choose-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

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

@media (max-width: 768px) {
    .navbar {
        height: 80px;
    }

    .navbar.scrolled {
        height: 60px;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 80px);
        background: var(--bg-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 24px;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    body.navbar-scrolled .nav-menu {
        top: 60px;
        height: calc(100vh - 60px);
    }

    .lang-switcher {
        width: 100%;
        justify-content: center;
        padding-top: 20px;
        border-top: 1px solid var(--border-color);
    }

    .hamburger {
        display: flex;
    }

    .hero-stats {
        gap: 20px;
        justify-content: space-between;
    }

    .stat {
        flex: 1;
        min-width: 80px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

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

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

    .footer {
        padding: 20px 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .footer-left {
        max-width: 100%;
        flex-direction: column;
        gap: 10px;
    }

    .footer-description {
        display: none;
    }

    .footer-logo {
        font-size: 20px;
        justify-content: center;
    }

    .footer-nav {
        gap: 20px;
    }

    .footer-nav a {
        font-size: 13px;
    }

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

    .footer-copyright p {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}