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

:root {
    --black: #0b1220;
    --white: #ffffff;
    --gray-light: #f5f7fb;
    --gray-medium: #697386;
    --gray-dark: #263244;
    --brand-blue: #113f67;
    --brand-teal: #0f8b8d;
    --brand-gold: #f4b860;
    --surface: #ffffff;
    --border: #dfe6ef;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--black);
    background-color: var(--gray-light);
    line-height: 1.6;
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.is-loaded {
    opacity: 1;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(5, 15, 28, 0.18);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    z-index: 1000;
    padding: 0.85rem 0;
    transition: box-shadow 0.25s ease, background 0.25s ease;
}

.navbar.is-scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: rgba(17, 63, 103, 0.12);
    box-shadow: 0 12px 30px rgba(17, 63, 103, 0.12);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand,
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand-mark {
    width: 52px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.24);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    flex-shrink: 0;
}

.brand-logo {
    width: 42px;
    height: auto;
    display: block;
    filter: invert(1);
}

.brand-text {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0;
}

.navbar.is-scrolled .brand-mark {
    background: var(--white);
    border-color: rgba(17, 63, 103, 0.16);
    box-shadow: 0 10px 24px rgba(17, 63, 103, 0.12);
}

.navbar.is-scrolled .brand-logo {
    filter: none;
}

.navbar.is-scrolled .brand-text {
    color: var(--brand-blue);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar.is-scrolled .nav-menu a {
    color: var(--gray-dark);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 680px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        linear-gradient(90deg, rgba(5, 15, 28, 0.14), rgba(5, 15, 28, 0.02) 45%, rgba(5, 15, 28, 0.16)),
        url('assets/glass-building-final.png');
    background-position: center center, center calc(50% + var(--hero-shift, 0px));
    background-size: cover, cover;
    background-repeat: no-repeat, no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(0deg, rgba(3, 9, 18, 0.2) 0%, transparent 46%, rgba(255,255,255,0.04) 100%);
    pointer-events: none;
    z-index: 2;
}

/* Tall Glass Buildings Background */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 42%, rgba(234, 247, 255, 0.18), transparent 22%);
    pointer-events: none;
    z-index: 1;
}

/* Glass Building Grid Lines with Illuminated Windows */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(3, 10, 19, 0.08), rgba(3, 10, 19, 0.16));
    pointer-events: none;
    z-index: 1;
}

/* Building Reflection Effect */
.building-reflection {
    position: absolute;
    inset: 0;
    height: 100%;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(0,0,0,0.58) 0%, transparent 22%, transparent 76%, rgba(0,0,0,0.5) 100%);
    z-index: 3;
}

/* Company Name on Buildings */
.building-name {
    display: none;
}

.hero-content {
    display: none;
}

.hero-logo {
    margin-bottom: 0;
}

.logo-large {
    display: inline-block;
    position: relative;
    width: min(820px, 86vw);
    padding: 0;
    border-radius: 0;
    text-align: center;
    background: transparent;
    border: 0;
    box-shadow: none;
    backdrop-filter: none;
    overflow: visible;
}

.logo-large::before {
    content: none;
}

.logo-large::after {
    content: none;
}

.logo-image {
    position: relative;
    z-index: 1;
    width: clamp(300px, 34vw, 560px);
    height: auto;
    margin-bottom: 1.5rem;
    color: var(--white);
    filter: invert(1) drop-shadow(0 0 4px rgba(234, 248, 255, 0.86)) drop-shadow(0 0 20px rgba(178, 224, 255, 0.42));
    opacity: 0.82;
}

.logo-main-text {
    position: relative;
    z-index: 1;
    display: block;
    font-size: clamp(1.35rem, 2.35vw, 2.8rem);
    font-weight: 300;
    color: var(--white);
    letter-spacing: clamp(6px, 0.9vw, 16px);
    text-transform: uppercase;
    text-shadow: 0 0 7px rgba(230, 246, 255, 0.68), 0 0 22px rgba(138, 201, 255, 0.3);
    opacity: 0.9;
}

.logo-sub {
    display: block;
    font-size: 1.05rem;
    font-weight: 300;
    letter-spacing: 5px;
    color: rgba(255,255,255,0.95);
    margin-top: 0.5rem;
    text-transform: uppercase;
    font-family: 'Arial', sans-serif;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 4.4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 0;
    text-shadow: 0 18px 45px rgba(0,0,0,0.42);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: rgba(255,255,255,0.84);
    text-shadow: 0 12px 30px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    background: var(--brand-gold);
    color: var(--black);
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.cta-button:hover {
    background: #ffd178;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255,255,255,0.2);
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: var(--gray-light);
    overflow: hidden;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--black);
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    color: var(--gray-medium);
    margin-bottom: 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-teal) 0%, var(--brand-gold) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--gray-medium);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--brand-blue), var(--brand-teal));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--black);
}

.service-card p {
    color: var(--gray-dark);
    line-height: 1.8;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--white);
    overflow: hidden;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--gray-dark);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-medium);
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.building-graphic {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-teal) 100%);
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.building-graphic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(90deg, 
            rgba(255,255,255,0.1) 1px, 
            transparent 1px),
        linear-gradient(rgba(255,255,255,0.1) 1px, 
            transparent 1px);
    background-size: 50px 100px;
}

.building-graphic::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10%;
    width: 15%;
    height: 80%;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--black), var(--brand-blue));
    color: var(--white);
    overflow: hidden;
}

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

.contact .section-subtitle {
    color: rgba(255,255,255,0.7);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: rgba(255,255,255,0.7);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 1rem;
    border-radius: 5px;
    color: var(--white);
    font-size: 1rem;
    font-family: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255,255,255,0.5);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--white);
}

.submit-button {
    background: var(--brand-gold);
    color: var(--black);
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    background: #ffd178;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--black);
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 2rem 0;
    overflow: hidden;
}

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

.footer-logo {
    margin-bottom: 1rem;
    justify-content: center;
}

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

.footer p {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero {
        min-height: 720px;
    }

    .hero::before,
    .hero::after {
        left: 0;
        right: 0;
    }

    .hero-content {
        margin-top: 2.5rem;
    }

    .hero-logo {
        margin-bottom: 2rem;
    }

    .logo-image {
        width: min(78vw, 360px);
    }

    .logo-main-text {
        font-size: 1.25rem;
        letter-spacing: 5px;
    }

    .building-name {
        top: 49%;
        font-size: 1.35rem;
        letter-spacing: 4px;
    }

    .cta-button {
        padding: 0.9rem 1.4rem;
    }

    .brand-logo {
        width: 34px;
    }

    .brand-mark {
        width: 42px;
        height: 34px;
    }

    .brand-text {
        font-size: 1.15rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    

    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--scroll-progress, 0%);
    height: 3px;
    background: linear-gradient(90deg, var(--brand-teal), var(--brand-gold));
    z-index: 1200;
    transition: width 0.08s linear;
}

.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition:
        opacity 0.75s ease,
        transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--reveal-delay, 0ms);
    will-change: opacity, transform;
}

.reveal-left {
    transform: translateX(-42px);
}

.reveal-right {
    transform: translateX(42px);
}

.reveal-zoom {
    transform: scale(0.96);
}

.reveal.is-visible {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    body,
    .navbar,
    .reveal,
    .service-card,
    .cta-button,
    .submit-button {
        transition: none;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Glass effect for cards */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}