/* Common Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-gray: #666666;
    --accent-darkgray: #333333;
    --accent-lightgray: #999999;
    --accent-navy: #003366;
    --accent-green: #2d5016;
    --accent-burgundy: #800020;
    --accent-silver: #c0c0c0;
    --text-dark: #1a1a1a;
    --text-light: #f5f5f5;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--secondary-color);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
    font-weight: 400;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px; /* reduced from 1rem to make header shorter */
}

.nav-brand a {
            /* tighten vertical space */
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--secondary-color);
    text-decoration: none;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text

}

/* Brand logo image */
.brand-logo {
    height: 44px;
    width: auto;
    display: block;
    border-radius: 6px;                 /* soften hard white edges */
    box-shadow: 0 0 0 1px rgba(255,255,255,0.06); /* subtle outline on dark bg */
}

@media (max-width: 768px) {
    .brand-logo { height: 34px; }
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition);
    letter-spacing: -0.01em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gray);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--accent-lightgray);
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.nav-dropdown .nav-link {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-dropdown .nav-link i {
    font-size: 0.7rem;
    transition: var(--transition);
}

.nav-dropdown:hover .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(10px);
    min-width: 220px;
    list-style: none;
    padding: 0.8rem 0;
    border-radius: 10px;
    margin-top: 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

.dropdown-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--accent-gray);
    transform: scaleY(0);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-lightgray);
    padding-left: 2rem;
}

.dropdown-menu a:hover::before {
    transform: scaleY(1);
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.4rem 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: transparent;
    color: var(--secondary-color);
    cursor: pointer;
    font-weight: 600;
    border-radius: 5px;
    transition: var(--transition);
    font-size: 0.85rem;
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--accent-gray);
    border-color: var(--accent-gray);
    color: var(--secondary-color);
}

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

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

/* Section Styles */
.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
    position: relative;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gray) 0%, var(--accent-darkgray) 100%);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.15rem;
    margin-bottom: 3rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
    color: var(--text-light);
    padding: 4rem 0 2rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-weight: 700;
    letter-spacing: -0.01em;
    font-size: 1.1rem;
}

.footer-section p,
.footer-section ul {
    line-height: 1.8;
    letter-spacing: -0.01em;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-lightgray);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-gray);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px; /* align with slightly shorter header */
        flex-direction: column;
        background: rgba(0, 0, 0, 0.98);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 2rem 0;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.3);
    }

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

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }
}

/* Animation Classes */
/* Scroll Animation Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.85);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(80px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-5deg) translateY(30px);
    }
    to {
        opacity: 1;
        transform: rotate(0) translateY(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.7);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes backgroundExpand {
    from {
        background-size: 0% 100%;
        opacity: 0;
    }
    to {
        background-size: 100% 100%;
        opacity: 1;
    }
}

/* Scroll Animation Classes */
.scroll-animate {
    opacity: 0 !important;
    will-change: opacity, transform;
}

.scroll-animate.animate-in {
    animation-duration: 1s;
    animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    animation-fill-mode: forwards;
    opacity: 1 !important;
}

.scroll-animate.fade-up {
    animation-name: fadeInUp;
}

.scroll-animate.fade-left {
    animation-name: fadeInLeft;
}

.scroll-animate.fade-right {
    animation-name: fadeInRight;
}

.scroll-animate.fade-in {
    animation-name: fadeIn;
}

.scroll-animate.scale-in {
    animation-name: scaleIn;
}

.scroll-animate.slide-up-fade {
    animation-name: slideUpFade;
    animation-duration: 1.2s;
}

.scroll-animate.rotate-in {
    animation-name: rotateIn;
}

.scroll-animate.zoom-in {
    animation-name: zoomIn;
}

/* Background animation on scroll */
.animate-background {
    transition: all 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-background.bg-active {
    background: linear-gradient(135deg, #f8f8f8 0%, #ffffff 100%) !important;
    transform: scale(1.02);
}

/* Stagger animation delays */
.scroll-animate.delay-100 { animation-delay: 0.1s; }
.scroll-animate.delay-200 { animation-delay: 0.2s; }
.scroll-animate.delay-300 { animation-delay: 0.3s; }
.scroll-animate.delay-400 { animation-delay: 0.4s; }
.scroll-animate.delay-500 { animation-delay: 0.5s; }
.scroll-animate.delay-600 { animation-delay: 0.6s; }
.scroll-animate.delay-700 { animation-delay: 0.7s; }
.scroll-animate.delay-800 { animation-delay: 0.8s; }

/* Legacy support for data-aos */
[data-aos="fade-up"] {
    animation: fadeInUp 0.8s ease-out forwards;
}

[data-aos="fade-up"][data-delay="100"] {
    animation-delay: 0.1s;
    opacity: 0;
}

[data-aos="fade-up"][data-delay="200"] {
    animation-delay: 0.2s;
    opacity: 0;
}

[data-aos="fade-up"][data-delay="300"] {
    animation-delay: 0.3s;
    opacity: 0;
}

[data-aos="fade-up"][data-delay="400"] {
    animation-delay: 0.4s;
    opacity: 0;
}

[data-aos="fade-up"][data-delay="500"] {
    animation-delay: 0.5s;
    opacity: 0;
}

/* Mobile optimizations for animations */
@media (max-width: 768px) {
    .scroll-animate.animate-in {
        animation-duration: 0.7s;
    }
    
    .scroll-animate.slide-up-fade {
        animation-duration: 0.8s;
    }
    
    /* Simplify parallax on mobile */
    .company-card::after,
    .animate-background::before {
        display: none;
    }
    
    /* Reduce motion for better mobile performance */
    @media (prefers-reduced-motion: reduce) {
        .scroll-animate,
        .scroll-animate.animate-in,
        [data-aos] {
            animation: none !important;
            opacity: 1 !important;
            transform: none !important;
        }
        
        .timeline::before {
            transform: translateX(-50%) scaleY(1) !important;
        }
    }
}