/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    --bg: #0c0c0c;
    --bg-elevated: #151413;
    --bg-glass: rgba(12, 12, 12, 0.92);
    --text: #e8e4df;
    --text-secondary: #8a8580;
    --text-tertiary: #4a4745;
    --border: #2a2725;
    --accent: #c4a35a;
    --accent-hover: #d9bc74;
    --accent-dim: rgba(196, 163, 90, 0.1);
    --font-serif: 'DM Serif Display', Georgia, serif;
    --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
    --bg: #f5f0eb;
    --bg-elevated: #ede8e1;
    --bg-glass: rgba(245, 240, 235, 0.92);
    --text: #1a1815;
    --text-secondary: #6b6560;
    --text-tertiary: #a8a29e;
    --border: #d5cfc8;
    --accent: #a08438;
    --accent-hover: #8a7030;
    --accent-dim: rgba(160, 132, 56, 0.08);
}

/* ============================================
   BASE
   ============================================ */
body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--accent);
    color: var(--bg);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   PRELOADER
   ============================================ */
.preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
}

.preloader-word {
    display: flex;
    gap: 0.05em;
    overflow: hidden;
}

.preloader-letter {
    font-family: var(--font-serif);
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--accent);
    display: inline-block;
    transform: translateY(120%);
    opacity: 0;
}

.preloader-sub {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    opacity: 0;
    transform: translateY(10px);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav.scrolled {
    padding: 0.75rem 0;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: -0.01em;
}

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

.nav-links a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.3s;
    letter-spacing: 0.01em;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.theme-toggle:active {
    transform: scale(0.92);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.icon-sun { display: block; }
.icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

.nav-cta {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    letter-spacing: 0.02em;
}

.nav-cta:hover {
    background: var(--accent);
    color: var(--bg);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 28px;
    height: 18px;
    position: relative;
    z-index: 110;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--text);
    position: absolute;
    left: 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-toggle span:nth-child(1) { top: 0; }
.mobile-toggle span:nth-child(2) { top: 8px; width: 60%; }
.mobile-toggle span:nth-child(3) { top: 16px; }

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

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem;
    gap: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
}

.mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu a {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--text);
    transition: color 0.3s;
}

.mobile-menu a:hover {
    color: var(--accent);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100dvh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 2rem;
    padding-top: 8rem;
    padding-bottom: 4rem;
    position: relative;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(15px);
}

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

.line-wrap {
    overflow: hidden;
    padding-bottom: 0.08em;
}

.line-inner {
    font-family: var(--font-serif);
    font-size: clamp(2.75rem, 5.5vw, 4.75rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    transform: translateY(115%);
}

.line-inner .accent {
    color: var(--accent);
    font-style: italic;
}

@keyframes bylineReveal {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-byline {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: bylineReveal 0.7s cubic-bezier(0.16, 1, 0.3, 1) 3.8s forwards;
}

.hero-byline-name {
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.hero-byline-sep {
    width: 1.5rem;
    height: 1px;
    background: var(--border);
    flex-shrink: 0;
}

.hero-byline-company {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.06em;
}

.hero-description {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 440px;
    line-height: 1.75;
    opacity: 0;
    transform: translateY(20px);
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
    margin-top: 2.5rem;
    opacity: 0;
    transform: translateY(20px);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.9rem 2rem;
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    letter-spacing: 0.01em;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0) scale(0.97);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--text-tertiary);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0) scale(0.97);
}

.btn svg {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn:hover svg {
    transform: translateX(3px);
}

.hero-visual {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 450px;
}

.topo-svg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 110%;
    height: 110%;
    color: var(--accent);
    opacity: 0.35;
}

.topo-path {
    fill: none;
    stroke: currentColor;
    stroke-width: 1;
    stroke-linecap: round;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    height: 70%;
    background: radial-gradient(ellipse at center, var(--accent-dim) 0%, transparent 70%);
    pointer-events: none;
    filter: blur(40px);
}

/* ============================================
   MARQUEE
   ============================================ */
.marquee {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    position: relative;
}

.marquee-track {
    display: flex;
    align-items: center;
    width: max-content;
    will-change: transform;
}

.marquee-item {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    color: var(--text-secondary);
    white-space: nowrap;
    padding: 0 1rem;
    transition: color 0.3s;
}

.marquee-item:hover {
    color: var(--text);
}

.marquee-dot {
    color: var(--accent);
    font-size: 1.5rem;
    padding: 0 1.5rem;
    line-height: 1;
}


/* ============================================
   SECTIONS COMMON
   ============================================ */
.section {
    padding: 8rem 0;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent);
    margin-bottom: 2rem;
    display: block;
}

/* ============================================
   SERVICES
   ============================================ */
.services-header {
    margin-bottom: 5rem;
}

.services-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.5vw, 3rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.service-block {
    padding: 3.5rem 0;
    position: relative;
}

.service-line {
    overflow: hidden;
    height: 1px;
    margin-bottom: 3rem;
}

.service-line-inner {
    width: 100%;
    height: 100%;
    background: var(--border);
    transform: scaleX(0);
    transform-origin: left center;
}

.service-content {
    display: grid;
    grid-template-columns: 5rem 1fr;
    gap: 3rem;
    align-items: start;
}

.service-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    padding-top: 0.35rem;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-block:hover .service-number {
    transform: translateX(4px);
}

.service-text h3 {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.service-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    max-width: 50ch;
}

/* ============================================
   APPROACH
   ============================================ */
.approach-inner {
    display: grid;
    grid-template-columns: 0.45fr 0.55fr;
    gap: 5rem;
    align-items: center;
}

.greek-display {
    text-align: center;
    position: relative;
}

.greek-word {
    display: flex;
    gap: 0.05em;
    justify-content: center;
}

.greek-letter {
    font-family: var(--font-serif);
    font-size: clamp(4.5rem, 9vw, 8rem);
    font-weight: 400;
    line-height: 1;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover), var(--accent));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0;
    transform: translateY(40px);
    animation: shimmer-bg 4s ease-in-out infinite;
}

@keyframes shimmer-bg {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.greek-sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-top: 1.5rem;
    opacity: 0;
}

.approach-content h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 2.8vw, 2.25rem);
    line-height: 1.25;
    margin-bottom: 1.75rem;
    letter-spacing: -0.01em;
}

.approach-content p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.85;
    max-width: 50ch;
}

.approach-content p + p {
    margin-top: 1.25rem;
}

.approach-content em {
    color: var(--accent);
    font-style: normal;
    font-family: var(--font-mono);
    font-size: 0.92em;
}

/* ============================================
   EXPERIENCE
   ============================================ */
.experience-header {
    margin-bottom: 4rem;
}

.experience-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.5vw, 3rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.experience-subtitle {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.75;
    max-width: 520px;
    margin-top: 1.25rem;
}

.exp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.exp-item {
    padding: 2.5rem;
    border-top: 1px solid var(--border);
    transition: background 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.exp-item:nth-child(odd):not(:last-child) {
    border-right: 1px solid var(--border);
}

.exp-item:last-child:nth-child(odd) {
    grid-column: 1 / -1;
}

.exp-item:hover {
    background: var(--bg-elevated);
}

.exp-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.exp-item h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    margin-bottom: 0.375rem;
}

.exp-role {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.exp-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.75;
}

/* ============================================
   CONTACT
   ============================================ */
.contact-inner {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 4rem;
    align-items: end;
    padding: 6rem 0;
    border-top: 1px solid var(--border);
}

.contact-title {
    font-family: var(--font-serif);
    font-size: clamp(2.25rem, 4.5vw, 3.75rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.contact-title .accent {
    color: var(--accent);
    font-style: italic;
}

.contact-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.75;
    max-width: 440px;
    margin-bottom: 2.5rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    align-items: flex-end;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all 0.3s;
    position: relative;
}

.contact-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.contact-link:hover::after {
    width: 100%;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
}

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

.footer-brand {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.footer-text {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ============================================
   MAGNETIC WRAPPER
   ============================================ */
.magnetic {
    will-change: transform;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 968px) {
    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 7rem;
    }

    .hero-visual {
        min-height: 280px;
        order: -1;
    }

    .topo-svg {
        width: 140%;
        opacity: 0.2;
    }

    .approach-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .greek-display { margin-bottom: 1rem; }

    .exp-grid {
        grid-template-columns: 1fr;
    }

    .exp-item:nth-child(1) {
        border-right: none;
    }

    .contact-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .contact-links { align-items: flex-start; }
}

@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }

    .nav-links, .nav-cta { display: none; }
    .mobile-toggle { display: block; }

    .section { padding: 5rem 0; }

    .hero { padding-top: 6rem; padding-bottom: 2rem; }
    .hero-visual { min-height: 200px; }

    .service-content {
        grid-template-columns: 3rem 1fr;
        gap: 1.5rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .marquee-item { font-size: 1.125rem; }
}

@media (max-width: 480px) {
    .line-inner { font-size: 2.25rem; }

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

    .btn { width: 100%; justify-content: center; }

    .greek-letter { font-size: 3.5rem; }
}