/* Premium Executive Design System */
:root {
    --bg-color: #0B0F14;
    --surface-color: #14191F;
    --accent-color: #00D1FF; /* Electric Blue */
    --accent-teal: #00F5D4;
    --text-high: #FFFFFF;
    --text-med: #94A3B8;
    --text-low: #475569;
    --nav-height: 100px;
    --container-width: 1200px;
    --font-main: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-med);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    opacity: 0.03;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3%3Cfilter id='noiseFilter'%3%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

h1, h2, h3, h4 {
    color: var(--text-high);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 100px; /* Slightly taller for the dual-line logo */
    background: rgba(11, 15, 20, 0.9);
    backdrop-filter: blur(15px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: var(--container-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.logo-main {
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: 0.35em;
    color: var(--text-high);
    text-transform: uppercase;
    line-height: 1;
}

.logo-main span {
    color: var(--text-high); /* Keep A same color as rest */
    font-weight: 300;
    margin: 0 -0.05em;
}

.logo-sub {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.logo-sub .line {
    flex-grow: 1;
    height: 1px;
    background: var(--accent-color);
}

.logo-sub .text {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--accent-color);
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.btn-contact {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color) !important;
}

.btn-contact:hover {
    background: var(--accent-color);
    color: var(--bg-color) !important;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
    background: linear-gradient(rgba(11, 15, 20, 0.92), rgba(11, 15, 20, 0.85)), url('hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.tagline {
    text-transform: uppercase;
    letter-spacing: 0.4em;
    color: var(--accent-color);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.1;
    max-width: 900px;
    margin-bottom: 32px;
}

.subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    max-width: 650px;
    margin-bottom: 24px;
    color: var(--text-high);
    font-weight: 400;
}

.proof-line {
    font-size: 0.9rem;
    color: var(--text-med);
    margin-bottom: 48px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.cta-group {
    display: flex;
    gap: 20px;
}

.btn-primary {
    padding: 18px 40px;
    background: var(--accent-color);
    color: var(--bg-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-secondary {
    padding: 18px 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-high);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary:hover, .btn-secondary:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 209, 255, 0.15);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 40px;
    width: 1px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: var(--accent-color);
    animation: scrollMove 2s infinite ease-in-out;
}

@keyframes scrollMove {
    0% { transform: translateY(0); }
    100% { transform: translateY(200%); opacity: 0; }
}

/* Sections Common */
section {
    padding: 160px 0;
}

.section-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--text-low);
    margin-bottom: 60px;
    display: block;
}

/* About Section */
.about .grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
}

.sticky-title {
    position: sticky;
    top: 140px;
    height: fit-content;
}

.lead {
    font-size: 1.8rem;
    color: var(--text-high);
    margin-bottom: 80px;
    line-height: 1.4;
}

.mindset-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px 40px;
}

.mindset-item h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--accent-teal);
}

/* Expertise Section */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.expertise-card {
    background: var(--surface-color);
    padding: 60px 40px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.expertise-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-10px);
}

.card-num {
    font-family: serif;
    font-style: italic;
    font-size: 0.9rem;
    color: var(--accent-color);
    margin-bottom: 32px;
}

.expertise-card h3 {
    margin-bottom: 20px;
    font-size: 1.4rem;
}

/* Work Section */
.work-list {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.work-item {
    display: grid;
    grid-template-columns: 1fr 3fr;
    padding: 60px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.work-item:hover {
    padding-left: 20px;
}

.work-meta {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-low);
}

.work-content h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

/* Approach Section */
.approach .large-text {
    font-size: 2.2rem;
    color: var(--text-high);
    max-width: 800px;
    margin-bottom: 80px;
    line-height: 1.3;
}

.approach-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.approach-item {
    background: rgba(255, 255, 255, 0.02);
    padding: 48px;
    border-left: 2px solid var(--accent-color);
}

.approach-item h4 {
    font-size: 1.2rem;
    margin-bottom: 16px;
    color: var(--text-high);
}

/* Contact Section */
.contact-box {
    max-width: 800px;
}

.contact-text {
    font-size: 1.5rem;
    color: var(--text-med);
    margin-bottom: 32px;
}

.contact-email {
    font-size: clamp(1.5rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--text-high);
    display: block;
    margin-bottom: 60px;
    border-bottom: 2px solid var(--accent-color);
    width: fit-content;
}

.contact-email:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 20px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.sep {
    color: var(--text-low);
}

/* Footer */
.footer {
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-low);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Responsive */
@media (max-width: 968px) {
    .about .grid, .work-item {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .sticky-title {
        position: static;
    }
    
    .mindset-grid, .approach-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
}