@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&display=swap');

:root {
    --color-navy: #0A192F;
    --color-navy-light: #112240;
    --color-gold: #B89742;
    --color-gold-hover: #D4AF37;
    --color-slate: #475569;
    --color-gray-light: #F3F4F6;
    --color-gray-dark: #1E293B;
    --color-white: #FFFFFF;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-gray-dark);
    line-height: 1.7;
    background-color: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-navy);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 600; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 600; }
h4 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }

p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    color: var(--color-slate);
}

a {
    color: var(--color-gold);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-navy);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 6rem 0;
}

@media (max-width: 768px) {
    .section {
        padding: 4rem 0;
    }
}

.section-dark {
    background-color: var(--color-navy);
    color: var(--color-white);
}

.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 {
    color: var(--color-white);
}

.section-dark p {
    color: #94A3B8;
}

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

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

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

.btn-gold:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-gray-light);
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 0.2rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    transition: padding 0.3s ease;
}

.header.scrolled .nav-container {
    padding: 0.5rem 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.01em;
}

.logo span {
    color: var(--color-gold);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-navy);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold);
    transition: width 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 30px;
    height: 2px;
    background-color: var(--color-navy);
    transition: all 0.3s;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.hero {
    padding: 10rem 0 6rem;
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--color-navy);
    color: var(--color-white);
    overflow: hidden;
}

.hero-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    mix-blend-mode: overlay;
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.hero p {
    color: #CBD5E1;
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    max-width: 700px;
    margin-bottom: 2.5rem;
}

.hero-divider {
    width: 60px;
    height: 3px;
    background-color: var(--color-gold);
    margin-bottom: 2rem;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }

.service-card {
    background: var(--color-white);
    padding: 3rem 2rem;
    border-top: 3px solid var(--color-navy);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
    border-top-color: var(--color-gold);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.service-card p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    font-weight: 500;
    color: var(--color-navy);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: auto;
}

.link-arrow::after {
    content: '→';
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.link-arrow:hover::after {
    transform: translateX(5px);
}

.methodology-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2rem;
    background: var(--color-white);
    padding: 2.5rem;
    border-left: 4px solid var(--color-navy);
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gray-light);
    line-height: 1;
    transition: color 0.3s ease;
}

.step-item:hover .step-number {
    color: var(--color-gold);
}

.insight-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.3s ease;
}

.insight-card:hover {
    transform: translateY(-5px);
}

.insight-img {
    height: 240px;
    width: 100%;
    object-fit: cover;
}

.insight-content {
    background: var(--color-white);
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-gray-light);
    border-top: none;
}

.insight-meta {
    font-size: 0.85rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    font-weight: 600;
}

.page-hero {
    padding: 12rem 0 6rem;
    background-color: var(--color-navy);
    color: var(--color-white);
    position: relative;
}

.page-hero h1 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.page-hero p {
    color: #CBD5E1;
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    max-width: 800px;
}

.article-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
}

.article-content h2 {
    margin: 3rem 0 1.5rem;
    font-size: 2rem;
}

.article-content blockquote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-navy);
    border-left: 4px solid var(--color-gold);
    padding-left: 2rem;
    margin: 3rem 0;
}

.drop-cap::first-letter {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-navy);
    float: left;
    margin-right: 0.5rem;
    line-height: 1;
    padding-top: 0.2rem;
}

.footer {
    background-color: #050C17;
    color: var(--color-white);
    padding: 5rem 0 2rem;
}

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

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: 1.5rem;
    display: inline-block;
}

.footer p {
    color: #94A3B8;
    font-size: 0.95rem;
}

.footer h4 {
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

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

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

.footer-links a {
    color: #94A3B8;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #64748B;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Optimizations */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-white);
        flex-direction: column;
        padding: 2rem;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }

    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    
    .hero {
        padding: 8rem 0 4rem;
        text-align: center;
    }
    
    .hero-divider {
        margin: 0 auto 2rem;
    }
    
    .page-hero {
        padding: 8rem 0 4rem;
        text-align: center;
    }

    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    
    .step-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
        border-left: none;
        border-top: 4px solid var(--color-navy);
        text-align: center;
    }
    .step-number {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}