:root {
    /* Rich blacks - not flat */
    --black-900: #0a0a0a;
    --black-800: #141414;
    --black-700: #1a1a1a;

    /* Sophisticated greys */
    --grey-900: #2a2a2a;
    --grey-800: #3a3a3a;
    --grey-700: #4a4a4a;
    --grey-600: #5a5a5a;
    --grey-500: #737373;
    --grey-400: #8c8c8c;
    --grey-300: #a5a5a5;
    --grey-200: #c4c4c4;
    --grey-100: #e3e3e3;
    --grey-50: #f4f4f4;

    /* Pure white */
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 18px;
    line-height: 1.6;
    color: var(--black-900);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    opacity: 0;
    transition: opacity 0.4s ease;
}

body.loaded {
    opacity: 1;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 28px 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid rgba(10, 10, 10, 0.05);
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    padding-left: 0;
}

.header-name {
    font-size: 26px;
    font-weight: 900;
    letter-spacing: -0.02em;
}

.header-separator {
    display: inline-block;
    width: 2px;
    height: 28px;
    background: var(--grey-300);
}

.header-tagline {
    font-family: 'Inter', sans-serif;
    line-height: 1.15;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tagline-line1,
.tagline-line2 {
    font-size: 18px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--black-900);
}

.header-border {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--grey-200) 20%, var(--grey-200) 80%, transparent 100%);
}

.header-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--black-900);
    text-decoration: none;
    padding: 10px 24px;
    border: 2px solid var(--black-900);
    border-radius: 4px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.header-link:hover {
    background: var(--black-900);
    color: var(--white);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    margin-top: 140px;
    padding: 120px 0 100px;
}

.hero-title {
    font-size: clamp(3.5rem, 9vw, 6rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 0.9;
    margin-bottom: 40px;
    color: var(--black-900);
    white-space: nowrap;
}

.hero-title::after {
    content: '';
    display: block;
    height: 3px;
    width: 120px;
    background: var(--black-900);
    margin-top: 40px;
}

.hero-image-wrapper {
    width: 100%;
    margin: 0 auto;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    box-shadow: 0 25px 100px rgba(10, 10, 10, 0.15);
    border-radius: 4px;
    filter: contrast(1.05);
}

/* Tagline Bridge */
.tagline-bridge {
    padding: 140px 0;
    background-image:
        linear-gradient(135deg, var(--black-900) 0%, var(--black-800) 100%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 100px,
            rgba(255, 255, 255, 0.01) 100px,
            rgba(255, 255, 255, 0.01) 200px
        );
    position: relative;
    color: var(--white);
}

.bridge-text {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    max-width: 900px;
    position: relative;
}

.bridge-text::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--white);
    margin-top: 40px;
    opacity: 0.3;
}

/* Services Section */
.services {
    padding: 120px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.service-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 48px;
    background: var(--white);
    border: 2px solid var(--grey-50);
    border-radius: 8px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 4px 24px rgba(10, 10, 10, 0.06);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 40px 100px rgba(10, 10, 10, 0.15);
    border-color: var(--grey-100);
}

.service-title {
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-bottom: 3px solid var(--black-900);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.service-subtitle {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--black-900);
}

.service-text {
    font-size: 17px;
    line-height: 1.7;
    color: var(--grey-700);
}

.service-result {
    font-size: 17px;
    line-height: 1.7;
    color: var(--black-900);
    margin-top: 12px;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-list li {
    font-size: 17px;
    line-height: 1.7;
    color: var(--grey-700);
    padding-left: 24px;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 4px;
    height: 4px;
    background: var(--grey-400);
    border-radius: 50%;
}

/* Experience Section */
.experience {
    padding: 140px 0;
    background: linear-gradient(180deg, var(--grey-50) 0%, var(--white) 100%);
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.3;
    margin-bottom: 32px;
}

.section-text {
    font-size: 19px;
    line-height: 1.8;
    color: var(--grey-700);
    margin-bottom: 24px;
}

.section-text:last-child {
    margin-bottom: 0;
}

/* Results Section */
.results {
    padding: 140px 0;
    background: var(--white);
    position: relative;
}

.results::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 1px;
    background: var(--grey-200);
}

/* Call to Action Section */
.cta {
    padding: 140px 0;
    background-image:
        linear-gradient(135deg, var(--black-900) 0%, var(--black-800) 100%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 100px,
            rgba(255, 255, 255, 0.01) 100px,
            rgba(255, 255, 255, 0.01) 200px
        );
    position: relative;
    overflow: hidden;
    color: var(--white);
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

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

.cta .section-text {
    color: var(--grey-200);
}

.cta-info {
    margin-top: 48px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cta-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--white);
}

.cta-email {
    font-size: 18px;
    color: var(--grey-300);
    margin-bottom: 32px;
}

.cta-button {
    display: inline-block;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--black-900);
    background-color: var(--white);
    padding: 22px 52px;
    text-decoration: none;
    border: 2px solid var(--white);
    border-radius: 6px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    align-self: flex-start;
}

.cta-button:hover {
    background-color: transparent;
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

/* Footer */
.footer {
    padding: 60px 0;
    border-top: 2px solid var(--grey-50);
    background: var(--white);
}

.footer-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--grey-600);
    letter-spacing: 0.01em;
    text-align: center;
}

.footer-link {
    color: var(--grey-500);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    text-decoration-color: transparent;
    transition: all 0.2s ease;
}

.footer-link:hover {
    color: var(--black-900);
    text-decoration-color: var(--black-900);
}

/* Selection Colors */
::selection {
    background: var(--black-900);
    color: var(--white);
}

::-moz-selection {
    background: var(--black-900);
    color: var(--white);
}

/* Text Links */
a:not(.header-link):not(.cta-button):not(.footer-link) {
    color: var(--black-900);
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 3px;
    text-decoration-color: var(--grey-300);
    transition: all 0.2s ease;
}

a:not(.header-link):not(.cta-button):not(.footer-link):hover {
    text-decoration-color: var(--black-900);
    text-decoration-thickness: 2px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .header {
        padding: 20px 0;
    }

    .header-content {
        flex-direction: column;
        gap: 20px;
    }

    .header-brand {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .header-separator {
        display: none;
    }

    .header-name {
        font-size: 20px;
    }

    .header-tagline {
        font-size: 14px;
    }

    .tagline-line1,
    .tagline-line2 {
        font-size: 14px;
    }

    .header-link {
        font-size: 14px;
    }

    .hero {
        margin-top: 100px;
        padding: 80px 0 60px;
    }

    .hero-title {
        white-space: normal;
        font-size: clamp(3rem, 9vw, 5rem);
    }

    .hero-image {
        box-shadow: 0 15px 60px rgba(10, 10, 10, 0.12);
    }

    .tagline-bridge {
        padding: 80px 0;
    }

    .services {
        padding: 80px 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .service-card {
        padding: 36px;
    }

    .service-title {
        font-size: 13px;
        padding-bottom: 14px;
    }

    .service-subtitle {
        font-size: 18px;
    }

    .service-text {
        font-size: 16px;
    }

    .service-result {
        font-size: 16px;
    }

    .service-list li {
        font-size: 16px;
        padding-left: 20px;
    }

    .service-list li::before {
        top: 11px;
    }

    .experience,
    .results,
    .cta {
        padding: 80px 0;
    }

    .section-text {
        font-size: 17px;
    }

    .cta-info {
        margin-top: 32px;
    }

    .cta-name {
        font-size: 18px;
    }

    .cta-email {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .cta-button {
        font-size: 16px;
        padding: 16px 32px;
        width: 100%;
        text-align: center;
    }

    .footer {
        padding: 32px 0;
    }

    .footer-text {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .service-card {
        padding: 28px;
    }

    .hero-title::after {
        width: 80px;
        margin-top: 30px;
    }
}