/* ==========================================================================
   Portfolio — Niklas Weber
   An editorial, architecture-inspired design system
   ========================================================================== */

:root {
    /* Color — Intentionally restrained */
    --color-bg: #F7F6F3;
    --color-bg-alt: #EFEEE9;
    --color-text: #1A1A1A;
    --color-text-secondary: #5C5C5C;
    --color-text-tertiary: #8A8A8A;
    --color-accent: #9B4B3A;
    --color-border: #D4D2CB;
    --color-border-light: #E8E6E1;

    /* Typography */
    --font-serif: 'EB Garamond', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing — Based on 8px grid */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    --space-xxl: 12rem;

    /* Frame */
    --frame-padding: 2rem;
    --nav-width: 4rem;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

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

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

a {
    color: inherit;
    text-decoration: none;
}

/* ==========================================================================
   Frame — Architectural border around the viewport
   ========================================================================== */

.frame {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1000;
}

.frame-line {
    position: absolute;
    background-color: var(--color-border);
}

.frame-line--top,
.frame-line--bottom {
    left: var(--frame-padding);
    right: var(--frame-padding);
    height: 1px;
}

.frame-line--top { top: var(--frame-padding); }
.frame-line--bottom { bottom: var(--frame-padding); }

.frame-line--left,
.frame-line--right {
    top: var(--frame-padding);
    bottom: var(--frame-padding);
    width: 1px;
}

.frame-line--left { left: var(--frame-padding); }
.frame-line--right { right: var(--frame-padding); }

/* ==========================================================================
   Navigation — Vertical, left-aligned
   ========================================================================== */

.nav {
    position: fixed;
    left: calc(var(--frame-padding) + 1rem);
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.nav__index {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav__index-label {
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
}

.nav__index-number {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-accent);
}

.nav__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.nav__link {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-secondary);
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.nav__link::before {
    content: attr(data-index);
    font-family: var(--font-serif);
    font-size: 0.625rem;
    font-style: italic;
    color: var(--color-text-tertiary);
    transition: color 0.3s ease;
}

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

.nav__link:hover::before {
    color: var(--color-accent);
}

.nav__link.active {
    color: var(--color-text);
}

.nav__link.active::before {
    color: var(--color-accent);
}

.nav__meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.625rem;
    color: var(--color-text-tertiary);
}

.nav__time {
    font-variant-numeric: tabular-nums;
}

/* Mobile navigation toggle — hidden on desktop */
.nav__toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.nav__toggle-line {
    display: block;
    width: 1.25rem;
    height: 1px;
    background-color: var(--color-text);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
}

.nav__toggle-line + .nav__toggle-line {
    margin-top: 6px;
}

.nav--open .nav__toggle-line:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.nav--open .nav__toggle-line:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}

/* ==========================================================================
   Main Content Area
   ========================================================================== */

.main {
    margin-left: calc(var(--frame-padding) + var(--nav-width) + var(--space-lg));
    margin-right: calc(var(--frame-padding) + var(--space-lg));
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
}

/* ==========================================================================
   Header — Asymmetrical, editorial
   ========================================================================== */

.header {
    min-height: calc(100vh - var(--space-xl) * 2);
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr auto auto;
    gap: var(--space-md);
    padding-bottom: var(--space-xxl);
    position: relative;
}

.header__intro {
    grid-column: 1 / 2;
    grid-row: 1;
    padding-top: var(--space-lg);
}

.header__context {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
}

.header__context--secondary {
    color: var(--color-text-tertiary);
    margin-top: 0.25rem;
}

.header__title {
    grid-column: 1 / -1;
    grid-row: 2;
    align-self: center;
    font-family: var(--font-serif);
    font-size: clamp(4rem, 12vw, 10rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: -0.03em;
    color: var(--color-text);
}

.header__title-line {
    display: block;
}

.header__title-line--indent {
    margin-left: 15%;
    font-style: italic;
}

.header__description {
    grid-column: 2 / 3;
    grid-row: 3;
    max-width: 28rem;
    justify-self: end;
    padding-top: var(--space-lg);
}

.header__description p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.header__aside {
    grid-column: 1 / 2;
    grid-row: 4;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: var(--space-lg);
}

.header__aside-label {
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
}

.header__aside-value {
    font-size: 0.875rem;
    color: var(--color-accent);
}

.header__scroll {
    position: absolute;
    right: 0;
    bottom: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-tertiary);
}

.header__scroll span {
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    writing-mode: vertical-rl;
}

/* ==========================================================================
   Sections — Common patterns
   ========================================================================== */

.section {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.section__header {
    display: flex;
    align-items: baseline;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.section__number {
    font-family: var(--font-serif);
    font-size: 0.875rem;
    font-style: italic;
    color: var(--color-accent);
}

.section__title {
    font-family: var(--font-serif);
    font-size: 0.875rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-secondary);
}

.section__count {
    font-size: 0.6875rem;
    color: var(--color-text-tertiary);
    margin-left: auto;
}

/* ==========================================================================
   Projects — Each with unique layout
   ========================================================================== */

/* Project: Featured (first project - large layout) */
.project--featured {
    display: grid;
    grid-template-columns: 4rem 1fr 1.2fr;
    grid-template-rows: auto auto;
    gap: var(--space-lg) var(--space-md);
    margin-bottom: var(--space-xl);
}

.project--featured .project__meta {
    grid-column: 1;
    grid-row: 1 / -1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.project--featured .project__content {
    grid-column: 2;
    grid-row: 1 / -1;
    align-self: center;
}

.project--featured .project__figure {
    grid-column: 3;
    grid-row: 1 / -1;
}

/* Project: Split (second project - image offset) */
.project--split {
    display: grid;
    grid-template-columns: 4rem 1fr 0.8fr;
    grid-template-rows: auto auto;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-top: var(--space-lg);
}

.project--split .project__meta {
    grid-column: 1;
    grid-row: 1 / -1;
}

.project--split .project__content {
    grid-column: 2;
    grid-row: 1 / -1;
}

.project--split .project__figure {
    grid-column: 3;
    grid-row: 1;
    margin-top: var(--space-xl);
}

/* Project: Compact (third project - no image) */
.project--compact {
    display: grid;
    grid-template-columns: 4rem 1fr 1fr;
    gap: var(--space-md);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.project--compact .project__meta {
    grid-column: 1;
}

.project--compact .project__content {
    grid-column: 2;
}

.project--compact .project__aside {
    grid-column: 3;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--space-lg);
}

/* Project Components */
.project__meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.project__index {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-accent);
}

.project__year {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--color-text-tertiary);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    margin-top: var(--space-sm);
}

.project__title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xs);
}

.project__subtitle {
    font-size: 0.8125rem;
    font-style: italic;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.project__description {
    max-width: 32rem;
}

.project__description p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.project__description p:last-child {
    margin-bottom: 0;
}

.project__note {
    font-style: italic;
    color: var(--color-text-tertiary);
    padding-left: var(--space-md);
    border-left: 1px solid var(--color-border);
    margin-top: var(--space-md);
}

.project__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
}

.project__details--inline {
    flex-direction: row;
    gap: var(--space-lg);
}

.project__detail {
    display: flex;
    gap: var(--space-md);
}

.project__detail dt {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    min-width: 5rem;
}

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

.project__detail a {
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    transition: border-color 0.2s ease, color 0.2s ease;
}

.project__detail a:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.project__figure {
    position: relative;
}

.project__figure--offset {
    transform: translateY(2rem);
}

.project__image {
    width: 100%;
    height: auto;
    object-fit: cover;
    filter: grayscale(15%);
    transition: filter 0.4s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.project__figure:hover .project__image {
    filter: grayscale(0%);
}

.project__caption {
    margin-top: var(--space-sm);
    font-size: 0.6875rem;
    font-style: italic;
    color: var(--color-text-tertiary);
}

.project__aside-quote {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-text-tertiary);
    max-width: 16rem;
    text-align: right;
}

/* Divider between projects */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-xl) 0;
    padding-left: calc(4rem + var(--space-md));
}

.divider::before {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--color-border), transparent);
}

.divider__text {
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-tertiary);
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-xl) var(--space-lg);
}

.about__primary {
    grid-column: 1;
    grid-row: 1;
    max-width: 32rem;
}

.about__lead {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    line-height: 1.5;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.about__text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.about__secondary {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding-left: var(--space-lg);
    border-left: 1px solid var(--color-border);
}

.about__block-title {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-xs);
}

.about__block-text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-style: italic;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.about__skills {
    grid-column: 1 / -1;
    grid-row: 2;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.about__skills-title {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-md);
}

.about__skills-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.about__skill {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.about__skills.visible .about__skill {
    opacity: 1;
    transform: translateY(0);
}

.about__skill-category {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
}

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

.about__aside-full {
    margin-top: var(--space-xxl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
}

.about__quote {
    max-width: 28rem;
    text-align: right;
}

.about__quote p {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    line-height: 1.4;
    color: var(--color-text-tertiary);
}

/* ==========================================================================
   Imprint Section
   ========================================================================== */

.header--compact {
    min-height: auto;
    grid-template-rows: auto auto;
    padding-bottom: var(--space-lg);
}

.header--compact .header__title {
    grid-row: 1;
    padding-top: var(--space-lg);
}

.header--compact .header__description {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: start;
    max-width: none;
    padding-top: var(--space-md);
}

.section--imprint {
    padding-top: var(--space-lg);
    padding-bottom: var(--space-lg);
}

.imprint__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl) var(--space-lg);
}

.imprint__layout--full {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.imprint__block {
    max-width: 36rem;
}

.imprint__heading {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-sm);
}

.imprint__address {
    font-style: normal;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.imprint__address p {
    margin: 0;
}

.imprint__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.imprint__detail {
    display: flex;
    gap: var(--space-md);
}

.imprint__detail dt {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    min-width: 5rem;
}

.imprint__detail dd {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.imprint__text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.imprint__text:last-child {
    margin-bottom: 0;
}

@media (max-width: 900px) {
    .imprint__layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact__layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.contact__primary {
    max-width: 28rem;
}

.contact__heading {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.contact__heading-line {
    display: block;
}

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

.contact__text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.contact__info {
    font-style: normal;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding-top: var(--space-md);
}

.contact__item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact__label {
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
}

.contact__value {
    font-size: 1rem;
    color: var(--color-text);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
    align-self: flex-start;
}

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

.contact__footer {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-xxl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

.contact__location,
.contact__timezone {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    margin-left: calc(var(--frame-padding) + var(--nav-width) + var(--space-lg));
    margin-right: calc(var(--frame-padding) + var(--space-lg));
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.footer__content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer__copyright,
.footer__note {
    font-size: 0.6875rem;
    color: var(--color-text-tertiary);
}

.footer__colophon {
    font-size: 0.625rem;
    font-style: italic;
    color: var(--color-text-tertiary);
}

.footer__links {
    display: flex;
    gap: var(--space-md);
}

.footer__link {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    transition: color 0.2s ease;
}

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

/* ==========================================================================
   Animations — Minimal, purposeful
   ========================================================================== */

/* Entry animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(2rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header__title-line {
    animation: slideUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}

.header__title-line:nth-child(2) {
    animation-delay: 0.1s;
}

.header__intro,
.header__description,
.header__aside {
    animation: fadeIn 0.6s ease backwards;
    animation-delay: 0.4s;
}

.header__scroll {
    animation: fadeIn 0.6s ease backwards;
    animation-delay: 0.6s;
}

.nav {
    animation: fadeIn 0.6s ease backwards;
    animation-delay: 0.8s;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(1.5rem);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1200px) {
    :root {
        --frame-padding: 1.5rem;
        --nav-width: 3rem;
    }

    .project--featured,
    .project--split {
        grid-template-columns: 3rem 1fr 1fr;
    }

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

@media (max-width: 900px) {
    :root {
        --frame-padding: 1rem;
    }

    /* Prevent horizontal scroll */
    html, body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100%;
    }

    /* Hide frame on mobile to save space */
    .frame {
        display: none;
    }

    /* ---- Navigation: sticky bar with hamburger ---- */
    .nav {
        position: sticky;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        transform: none;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: var(--space-sm) calc(var(--frame-padding) + var(--space-md));
        margin: 0;
        border-bottom: 1px solid var(--color-border-light);
        background-color: var(--color-bg);
        z-index: 100;
    }

    .nav__toggle {
        display: flex;
        min-width: 44px;
        min-height: 44px;
    }

    .nav__index {
        flex-direction: row;
        align-items: baseline;
        gap: var(--space-xs);
    }

    .nav__list {
        display: none;
    }

    .nav__meta {
        display: none;
    }

    /* ---- Navigation: open overlay state ---- */
    .nav--open {
        position: fixed;
        inset: 0;
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto 1fr auto;
        padding: var(--space-xs) calc(var(--frame-padding) + var(--space-md));
        border-bottom: none;
        overflow-y: auto;
        z-index: 500;
    }

    .nav--open .nav__index {
        grid-column: 1;
        grid-row: 1;
        align-self: center;
    }

    .nav--open .nav__toggle {
        grid-column: 2;
        grid-row: 1;
        align-self: center;
    }

    .nav--open .nav__list {
        grid-column: 1 / -1;
        grid-row: 2;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--space-lg);
    }

    .nav--open .nav__link {
        font-family: var(--font-serif);
        font-size: clamp(2rem, 8vw, 3rem);
        font-weight: 400;
        text-transform: none;
        letter-spacing: -0.02em;
        color: var(--color-text);
        padding: var(--space-xs) var(--space-sm);
    }

    .nav--open .nav__link::before {
        font-size: 0.875rem;
    }

    .nav--open .nav__link:hover,
    .nav--open .nav__link.active {
        color: var(--color-accent);
    }

    .nav--open .nav__meta {
        grid-column: 1 / -1;
        grid-row: 3;
        display: flex;
        flex-direction: row;
        gap: var(--space-sm);
        padding: var(--space-md) 0;
        border-top: 1px solid var(--color-border-light);
        justify-content: center;
    }

    /* Stagger links in overlay */
    .nav--open .nav__list li {
        animation: slideUp 0.4s cubic-bezier(0.22, 1, 0.36, 1) backwards;
    }

    .nav--open .nav__list li:nth-child(1) { animation-delay: 0.05s; }
    .nav--open .nav__list li:nth-child(2) { animation-delay: 0.1s; }
    .nav--open .nav__list li:nth-child(3) { animation-delay: 0.15s; }

    .nav--open .nav__meta {
        animation: fadeIn 0.3s ease 0.15s backwards;
    }

    /* Body scroll lock when menu is open */
    body.nav-open {
        overflow: hidden;
    }

    /* ---- Main content ---- */
    .main {
        margin-left: var(--space-md);
        margin-right: var(--space-md);
        padding-top: var(--space-md);
        padding-bottom: var(--space-lg);
        width: calc(100% - var(--space-md) * 2);
        max-width: 100%;
        box-sizing: border-box;
    }

    .section {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow-x: hidden;
    }

    /* ---- Header ---- */
    .header {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
        min-height: auto;
        padding-bottom: var(--space-xl);
        gap: var(--space-md);
    }

    .header__intro {
        grid-column: 1;
        grid-row: auto;
        padding-top: var(--space-md);
    }

    .header__title {
        grid-column: 1;
        grid-row: auto;
    }

    .header__title-line--indent {
        margin-left: 10%;
    }

    .header__description {
        grid-column: 1;
        grid-row: auto;
        justify-self: start;
        max-width: 100%;
        padding-top: var(--space-md);
    }

    .header__aside {
        grid-column: 1;
        grid-row: auto;
    }

    .header__scroll { display: none; }

    /* ---- Projects ---- */
    .project--featured,
    .project--split,
    .project--compact {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .project--featured .project__content,
    .project--split .project__content,
    .project--compact .project__content {
        grid-column: 1;
        grid-row: auto;
    }

    .project--featured .project__figure,
    .project--split .project__figure,
    .project--compact .project__aside {
        grid-column: 1;
        grid-row: auto;
    }

    .project--featured .project__meta,
    .project--split .project__meta,
    .project--compact .project__meta {
        grid-column: 1;
        grid-row: auto;
    }

    .project__meta {
        flex-direction: row;
        gap: var(--space-md);
        align-items: baseline;
    }

    .project__year {
        writing-mode: horizontal-tb;
        transform: none;
        margin-top: 0;
    }

    .project__figure {
        margin-left: 0;
        margin-right: 0;
        width: 100%;
    }

    .project__image {
        width: 100%;
        max-width: 100%;
    }

    .project__caption {
        padding-left: 0;
    }

    .project__figure--offset {
        transform: none;
    }

    .project--compact .project__aside {
        justify-content: flex-start;
        padding-right: 0;
        padding-top: var(--space-md);
        border-top: 1px solid var(--color-border-light);
    }

    .project__aside-quote {
        text-align: left;
        max-width: none;
        font-size: 1rem;
    }

    .project__details--inline {
        flex-direction: column;
        gap: var(--space-sm);
    }

    /* Touch targets for project links */
    .project__detail a {
        padding: var(--space-xs) 0;
        display: inline-block;
    }

    /* ---- About ---- */
    .about__layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg) 0;
        width: 100%;
    }

    .about__primary {
        grid-column: 1;
        grid-row: 1;
        max-width: 100%;
    }

    .about__secondary {
        grid-column: 1;
        grid-row: 2;
        padding-left: 0;
        border-left: none;
        padding-top: var(--space-lg);
        border-top: 1px solid var(--color-border-light);
    }

    .about__skills {
        grid-column: 1;
        grid-row: 3;
    }

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

    /* ---- Contact ---- */
    .contact__layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        width: 100%;
    }

    .contact__primary {
        max-width: 100%;
    }

    .contact__heading {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .contact__value {
        padding: var(--space-xs) 0;
        display: inline-block;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }

    /* ---- Footer ---- */
    .footer {
        margin-left: var(--space-md);
        margin-right: var(--space-md);
        flex-direction: column;
        gap: var(--space-md);
        align-items: flex-start;
        width: calc(100% - var(--space-md) * 2);
        max-width: 100%;
        box-sizing: border-box;
    }

    .footer__link {
        padding: var(--space-xs) 0;
    }

    /* ---- Imprint ---- */
    .imprint__layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

@media (max-width: 600px) {
    :root {
        --space-xl: 4rem;
        --space-xxl: 6rem;
    }

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

    .project__title {
        font-size: clamp(1.5rem, 8vw, 2rem);
    }

    .about__skills-list {
        grid-template-columns: 1fr;
    }

    .contact__heading {
        font-size: clamp(2rem, 10vw, 3rem);
    }

    .contact__footer {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .divider {
        padding-left: 0;
    }
}

@media (max-width: 400px) {
    :root {
        --frame-padding: 0.75rem;
        --space-xs: 0.5rem;
        --space-sm: 0.75rem;
        --space-md: 1rem;
        --space-lg: 2rem;
        --space-xl: 3rem;
        --space-xxl: 4rem;
    }

    .nav {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
        width: 100%;
    }

    .nav--open {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }

    .main {
        margin-left: var(--space-sm);
        margin-right: var(--space-sm);
        width: calc(100% - var(--space-sm) * 2);
    }

    .footer {
        margin-left: var(--space-sm);
        margin-right: var(--space-sm);
        width: calc(100% - var(--space-sm) * 2);
    }

    .header__title {
        font-size: clamp(2.5rem, 14vw, 4rem);
    }

    .nav--open .nav__link {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    .about__lead {
        font-size: 1.25rem;
    }

    .project__description {
        max-width: 100%;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .frame,
    .nav,
    .header__scroll {
        display: none;
    }

    .main {
        margin: 0;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    a {
        text-decoration: underline;
    }
}