/* ============================================
   nicolawson.com - Professional Portfolio
   ============================================ */

:root {
    --color-bg: #0a0a0a;
    --color-bg-elevated: #141414;
    --color-bg-card: #1a1a1a;
    --color-text: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;
    --color-accent: #ffffff;
    --color-accent-hover: #e0e0e0;
    --color-border: #2a2a2a;
    --color-gradient-start: #1a1a1a;
    --color-gradient-end: #0a0a0a;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;

    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

h4 {
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 48px;
}

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

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

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

.btn-secondary:hover {
    border-color: var(--color-text);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Section Styling */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-number {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.nav-cta {
    padding: 0.625rem 1.25rem;
    background-color: var(--color-accent);
    color: var(--color-bg) !important;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-fast);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 var(--spacing-2xl);
    position: relative;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-greeting {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.hero-name {
    font-family: var(--font-serif);
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 500;
    line-height: 1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin-bottom: var(--spacing-xl);
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--spacing-xs);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    inset: -20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transform: rotate(3deg);
}

.hero-image-wrapper img {
    width: 100%;
    border-radius: var(--radius-lg);
    filter: grayscale(100%);
    transition: filter var(--transition-slow);
}

.hero-image-wrapper:hover img {
    filter: grayscale(0%);
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.hero-scroll span {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* ============================================
   About Section
   ============================================ */
.about {
    background-color: var(--color-bg-elevated);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
}

.about-lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    margin-bottom: var(--spacing-md);
}

.about-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.skills-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.languages-list li {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.languages-list .level {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--color-border), transparent);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--spacing-lg) - 4px);
    top: 6px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 2px solid var(--color-text-muted);
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.timeline-item h5 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    margin: var(--spacing-xs) 0;
}

.timeline-item p {
    font-size: 0.875rem;
    margin: 0;
}

/* ============================================
   Projects Section
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.project-card:hover {
    border-color: var(--color-text-muted);
    transform: translateY(-4px);
}

.project-featured {
    grid-column: span 2;
}

.project-tag {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    background-color: var(--color-bg);
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.project-card h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.project-card > .project-content > p {
    margin-bottom: var(--spacing-md);
}

.project-highlights {
    margin-bottom: var(--spacing-lg);
}

.project-highlights li {
    position: relative;
    padding-left: var(--spacing-md);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.project-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 6px;
    height: 6px;
    background-color: var(--color-text-muted);
    border-radius: 50%;
}

.project-metrics {
    display: flex;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
}

/* ============================================
   References Section
   ============================================ */
.references {
    background-color: var(--color-bg-elevated);
}

.references-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.reference-card {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.reference-card:hover {
    border-color: var(--color-text-muted);
}

.reference-card-detailed {
    display: flex;
    flex-direction: column;
}

.reference-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.reference-company h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.reference-location {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.reference-date {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.reference-details {
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.reference-position {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.reference-period {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.reference-company-info {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.reference-quote {
    font-family: var(--font-serif);
    font-size: 0.9375rem;
    font-style: italic;
    line-height: 1.6;
    color: var(--color-text-secondary);
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.btn-reference {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.25rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text);
    background-color: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    margin-top: auto;
}

.btn-reference:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.btn-reference svg {
    flex-shrink: 0;
}

.reference-text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-style: italic;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.reference-author {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 500;
    color: var(--color-text);
}

.author-title {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.references-cta {
    text-align: center;
}

.references-cta p {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Beyond Work Section
   ============================================ */
.beyond-intro {
    max-width: 700px;
    margin-bottom: var(--spacing-2xl);
}

.beyond-intro p {
    font-size: 1.125rem;
    color: var(--color-text);
}

.beyond-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.beyond-item {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.beyond-item:hover {
    border-color: var(--color-text-muted);
}

.beyond-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.beyond-item h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    text-transform: none;
    letter-spacing: 0;
    margin-bottom: var(--spacing-sm);
}

.beyond-item p {
    font-size: 0.875rem;
    margin: 0;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: linear-gradient(to bottom, var(--color-bg-elevated), var(--color-bg));
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.contact-text h2 {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--spacing-md);
}

.contact-text > p {
    font-size: 1.125rem;
    max-width: 500px;
    margin-bottom: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

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

.contact-icon {
    width: 24px;
    height: 24px;
    color: var(--color-text-muted);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-location {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.location-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.location-city {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.location-permit {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-content p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-image-wrapper {
        max-width: 350px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .beyond-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-bg-elevated);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px var(--spacing-xl) var(--spacing-xl);
        transition: right var(--transition-base);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        font-size: 1.125rem;
        padding: var(--spacing-sm) 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }

    .nav-toggle.active span:nth-child(2) {
        transform: rotate(-45deg) translate(5px, -6px);
    }

    .hero {
        min-height: auto;
        padding: 120px 0 var(--spacing-2xl);
    }

    .hero-name {
        font-size: clamp(3rem, 15vw, 5rem);
    }

    .hero-scroll {
        display: none;
    }

    .about-details {
        grid-template-columns: 1fr;
    }

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

    .project-featured {
        grid-column: span 1;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

    .hero-ctas .btn {
        width: 100%;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--spacing-lg);
    }

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

    .project-metrics {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
}

/* Animations */
@media (prefers-reduced-motion: no-preference) {
    .fade-in {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

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

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}