/* Base Variables & Settings */
:root {
    --color-black: #050505;
    --color-white: #ffffff;
    --color-gray-dark: #1f1f1f;
    --color-gray-light: #e0e0e0;
    --color-gray: #888888;
    
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

html {
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-white);
    color: var(--color-black);
    line-height: 1.7;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-black);
}

.dark-bg h1, .dark-bg h2, .dark-bg h3, .dark-bg h4, .dark-bg h5, .dark-bg h6 {
    color: var(--color-white);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
}

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

.section-header {
    margin-bottom: 5rem;
    text-align: center;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: currentColor;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    z-index: 1000;
    border-bottom: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.06);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
    transition: height var(--transition);
}

header.scrolled .header-container {
    height: 70px;
}

.logo a {
    font-size: 1.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -1.5px;
}

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

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 5px 0;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--color-black);
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 5rem;
    background-color: var(--color-white);
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem 0;
}

.hero-text {
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-kicker {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 5px;
    color: var(--color-gray);
    margin-bottom: 1.5rem;
    display: block;
}

.hero-title {
    font-size: 6.5rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -3px;
    text-transform: uppercase;
    color: var(--color-black);
}

.hero-subtitle {
    font-size: 1.45rem;
    font-weight: 400;
    color: var(--color-gray-dark);
    margin-bottom: 3.5rem;
    max-width: 750px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 3rem;
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: 2px solid var(--color-black);
    cursor: pointer;
    text-align: center;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-black);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-black);
}

.btn-outline:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.cv-section {
    position: relative;
    border-left: 3px solid var(--color-black);
    padding-left: 1.5rem;
}

.cv-title {
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.cv-list {
    list-style: none;
    font-size: 1.15rem;
    color: var(--color-gray-dark);
}

.cv-list li {
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
}

.cv-list li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--color-black);
    font-weight: bold;
}

.cv-list li strong {
    color: var(--color-black);
    font-weight: 700;
}

.about-image {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    max-height: 85vh; /* Prevents the image from becoming too tall */
    object-fit: contain;
    display: block;
    border: 2px solid var(--color-black);
    box-shadow: 15px 15px 0 var(--color-black);
    transition: var(--transition);
    border-radius: 4px;
}

.about-image:hover img {
    transform: translate(-3px, -3px);
    box-shadow: 18px 18px 0 var(--color-black);
}

/* Career Section */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 2px;
    background-color: var(--color-gray-dark);
}

.timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: 4rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 4px;
    top: 5px;
    width: 34px;
    height: 34px;
    background-color: var(--color-black);
    border: 4px solid var(--color-white);
    border-radius: 50%;
    z-index: 2;
}

.timeline-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.timeline-content p {
    color: var(--color-gray-light);
    font-size: 1.1rem;
}

/* Vision Section */
.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.vision-card {
    border: 1px solid var(--color-gray-light);
    padding: 4rem 3rem;
    transition: var(--transition);
    background-color: var(--color-white);
}

.vision-card:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    transform: translateY(-10px);
    border-color: var(--color-black);
}

.vision-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    transition: var(--transition);
}

.vision-card p {
    color: var(--color-gray-dark);
    font-size: 1.1rem;
    transition: var(--transition);
}

.vision-card:hover h3, .vision-card:hover p {
    color: var(--color-white);
}

/* Quote Section */
.quote-text {
    font-size: 2.2rem;
    font-weight: 300;
    line-height: 1.5;
    margin-bottom: 2rem;
    font-style: italic;
    color: var(--color-white);
}

.quote-author {
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-gray);
}

/* FAQ Section */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--color-gray-light);
    background-color: var(--color-white);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--color-black);
}

.faq-item summary {
    font-size: 1.25rem;
    font-weight: 600;
    padding: 1.5rem 2rem;
    cursor: pointer;
    list-style: none; /* remove default arrow */
    position: relative;
    user-select: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    font-weight: 400;
    transition: var(--transition);
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item[open] summary {
    border-bottom: 1px solid var(--color-gray-light);
}

.faq-content {
    padding: 1.5rem 2rem;
    color: var(--color-gray-dark);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Footer */
.footer {
    padding: 3rem 0;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
    color: var(--color-gray);
    font-size: 1rem;
}

.footer-x-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-gray-dark);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition);
}

.footer-x-icon:hover {
    background-color: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-white);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-title {
        font-size: 4rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .cv-section {
        border-left: 2px solid var(--color-black);
        padding-left: 1.2rem;
    }
}

@media (max-width: 768px) {
    header {
        position: absolute; /* Drops sticky follow behavior */
    }

    .header-container {
        flex-direction: column;
        justify-content: center;
        gap: 1rem;
        height: auto;
        padding: 1.5rem 0;
    }

    header.scrolled .header-container {
        height: auto;
    }
    
    .nav-links {
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        min-height: auto;
        padding-top: 12rem; /* Creates space for absolute header */
        padding-bottom: 3rem;
    }
    
    .hero-kicker {
        font-size: 0.85rem;
        letter-spacing: 2px;
    }

    .hero-title {
        font-size: 2.2rem;
        letter-spacing: -1.5px;
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .btn {
        padding: 0.8rem 1.8rem;
        font-size: 0.85rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .about-image img {
        box-shadow: 10px 10px 0 var(--color-black);
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 3rem;
    }

    .quote-text {
        font-size: 1.5rem;
    }
}