/* reset & base */
:root {
    --col-bg: #f9f8f6;
    --col-text: #1a1b1e;
    --col-text-muted: #6b6b70;
    --col-primary: #111a24;
    --col-accent: #c4a173; /* Gold/Champagne */
    --col-accent-hover: #b08e60;
    --col-white: #ffffff;
    --col-border: rgba(17, 26, 36, 0.1);
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
    
    --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 4px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--col-text);
    background-color: var(--col-bg);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--col-primary);
    line-height: 1.2;
}

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

img, svg {
    max-width: 100%;
    display: block;
}

/* layout utils */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--col-text-muted);
    max-width: 600px;
    margin-bottom: 3rem;
}

.dark-bg {
    background-color: var(--col-primary);
    color: var(--col-white);
}

.dark-bg .section-title,
.dark-bg h3,
.dark-bg h4 {
    color: var(--col-white);
}

.dark-bg .section-subtitle,
.dark-bg p {
    color: rgba(255,255,255,0.7);
}

.italic {
    font-style: italic;
    font-weight: 400;
}

/* buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--col-accent-hover);
}

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

.btn-secondary:hover {
    background-color: #f0f0f0;
}

.btn-outline {
    border-color: var(--col-border);
    color: var(--col-primary);
}

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

/* header */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(249, 248, 246, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--col-border);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo .accent {
    font-weight: 400;
    font-style: italic;
    color: var(--col-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a:not(.btn) {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--col-accent);
    transition: var(--transition);
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--col-primary);
    transition: var(--transition);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--col-primary) 0%, rgba(17,26,36,0.9) 100%), url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg" stroke="rgba(255,255,255,0.03)"%3E%3Cg fill="none" fill-rule="evenodd"%3E%3Cpath d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/%3E%3C/g%3E%3C/svg%3E');
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    max-width: 800px;
    color: var(--col-white);
    text-align: center;
    margin: 0 auto;
}

.hero-eyebrow {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--col-accent);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    color: var(--col-white);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-desc {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* about */
.outline-container {
    position: relative;
    padding: 4rem 0;
}

.outline-container::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    right: 20px;
    border: 1px solid var(--col-accent);
    opacity: 0.3;
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 0 3rem;
}

.about-text p {
    color: var(--col-text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.stats-row {
    display: flex;
    gap: 3rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--col-border);
}

.stat-number {
    font-size: 2.5rem;
    color: var(--col-accent);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--col-text-muted);
}

.visual-box {
    background-color: var(--col-primary);
    color: var(--col-white);
    padding: 4rem 3rem;
    position: relative;
}

.ornament {
    width: 40px;
    height: 40px;
    border-top: 2px solid var(--col-accent);
    border-left: 2px solid var(--col-accent);
    margin-bottom: 2rem;
}

.quote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    line-height: 1.4;
    color: var(--col-white) !important;
}

/* services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    background-color: rgba(255,255,255,0.02);
    transition: var(--transition);
}

.service-card:hover {
    background-color: rgba(255,255,255,0.05);
    border-color: var(--col-accent);
    transform: translateY(-5px);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--col-accent);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* umbrella structure */
.umbrella-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
}

.umbrella-info p {
    font-size: 1.25rem;
    color: var(--col-text-muted);
}

.subsidiaries-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.subsidiary-item {
    padding: 2rem;
    background-color: var(--col-white);
    border-left: 4px solid var(--col-accent);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: var(--transition);
}

.subsidiary-item:hover {
    transform: translateX(10px);
}

.subsidiary-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.subsidiary-item p {
    color: var(--col-text-muted);
    font-size: 0.95rem;
}

/* contact */
.contact-card {
    background-color: var(--col-white);
    padding: 5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.contact-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(196, 161, 115, 0.05));
}

.contact-header p {
    color: var(--col-text-muted);
    margin-top: 1rem;
    font-size: 1.125rem;
}

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

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

.info-icon {
    width: 24px;
    height: 24px;
    color: var(--col-accent);
    margin-top: 0.25rem;
}

.contact-info-block h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.contact-info-block p,
.contact-info-block a {
    color: var(--col-text-muted);
    font-size: 1.125rem;
}

.contact-info-block a:hover {
    color: var(--col-accent);
}

/* footer */
.footer {
    background-color: var(--col-primary);
    color: var(--col-white);
    padding-top: 5rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.logo-footer {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--col-white);
    display: block;
    margin-bottom: 1rem;
}

.logo-footer span {
    font-style: italic;
    font-weight: 400;
    color: var(--col-accent);
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    max-width: 300px;
}

.footer h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    color: var(--col-white);
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
}

.footer-links a:hover {
    color: var(--col-accent);
    padding-left: 5px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    color: var(--col-white);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.social-link:hover {
    background-color: var(--col-accent);
    border-color: var(--col-accent);
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.875rem;
    color: rgba(255,255,255,0.5);
}

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

.legal-links {
    display: flex;
    gap: 1.5rem;
}

.legal-links a:hover {
    color: var(--col-white);
}

/* Animations */
.reveal {
    opacity: 0;
    visibility: hidden;
}

.fade-up {
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease, visibility 0.8s ease;
}

.fade-in {
    transition: opacity 1s ease, visibility 1s ease;
}

.reveal.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 991px) {
    .about-grid,
    .umbrella-layout,
    .contact-card,
    .footer-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-grid {
        padding: 0;
    }

    .contact-card {
        padding: 3rem 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--col-white);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: var(--transition);
        z-index: 999;
    }

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

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .stats-row {
        flex-direction: column;
        gap: 1.5rem;
    }

    .flex-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}