/* =============================================================
   DESIGN TOKENS
   ============================================================= */
:root {
    --color-bg:          #f5f3ef;
    --color-surface:     #ffffff;
    --color-ink:         #111111;
    --color-ink-soft:    #3a3a3a;
    --color-muted:       #8a8680;
    --color-line:        #e2dfd8;
    --color-accent:      #c45a2a;
    --color-accent-soft: #f0e6dd;

    --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Roboto Mono', ui-monospace, monospace;

    --s-1: 8px;  --s-2: 16px; --s-3: 24px; --s-4: 32px;
    --s-5: 40px; --s-6: 48px; --s-8: 64px; --s-10: 80px;
    --s-12: 96px; --s-16: 128px; --s-20: 160px;

    --container-max: 1280px;
    --container-pad: clamp(24px, 5vw, 56px);

    --ease:    cubic-bezier(0.22, 1, 0.36, 1);
    --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
    --dur-fast: 220ms;
    --dur:      420ms;
    --dur-slow: 720ms;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-ink);
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; padding: 0; }
::selection { background: var(--color-ink); color: var(--color-bg); }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

.page { display: none; }
.page.is-active { display: block; }

/* =============================================================
   NAVIGATION — Tony Jin style: logo left, links right
   ============================================================= */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: var(--s-3) 0;
    transition: padding var(--dur) var(--ease), background-color var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease), border-color var(--dur) var(--ease);
    border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
    padding: 12px 0;
    background-color: rgba(245, 243, 239, 0.85);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom-color: var(--color-line);
}
.nav__inner {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-3);
}
.nav__logo {
    font-family: var(--font-sans);
    font-size: 17px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--color-ink);
    cursor: pointer;
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
}
.nav__logo-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    display: inline-block;
}
.nav__links {
    display: flex;
    align-items: center;
    gap: var(--s-4);
    font-family: var(--font-sans);
    font-size: 15px;
}
.nav__links a, .nav__links button {
    position: relative;
    padding: var(--s-1) 0;
    transition: color var(--dur-fast) var(--ease);
    cursor: pointer;
}
.nav__links a::after, .nav__links button::after {
    content: '';
    position: absolute;
    left: 0; bottom: 4px;
    width: 100%; height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--dur) var(--ease);
}
.nav__links a:hover::after, .nav__links button:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* =============================================================
   HERO — Hayden Harrison style: conversational + rotating word
   ============================================================= */
.hero {
    padding-top: clamp(140px, 18vh, 200px);
    padding-bottom: var(--s-12);
}

.hero__avatar-row {
    display: flex;
    align-items: center;
    gap: var(--s-2);
    margin-bottom: var(--s-6);
}
.hero__avatar {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #c45a2a 0%, #e89668 100%);
    display: grid;
    place-items: center;
    color: var(--color-bg);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 20px;
    letter-spacing: 0.02em;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}
.hero__avatar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 25%, rgba(255,255,255,0.3), transparent 50%);
}
.hero__avatar-name {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.hero__avatar-name strong {
    font-weight: 500;
    font-size: 15px;
    color: var(--color-ink);
}
.hero__avatar-name span {
    font-size: 13px;
    color: var(--color-muted);
}

/* Headline with rotating word */
.hero__greeting {
    font-size: clamp(40px, 6.5vw, 88px);
    font-weight: 300;
    line-height: 1.05;
    letter-spacing: -0.035em;
    margin: 0 0 var(--s-6);
    color: var(--color-ink);
    max-width: 18ch;
}

.hero__rotator {
    display: inline-block;
    color: var(--color-accent);
    position: relative;
    min-width: 1ch;
}
.hero__rotator-text {
    display: inline-block;
    transition: opacity 360ms var(--ease), transform 360ms var(--ease);
}
.hero__rotator-text.is-out {
    opacity: 0;
    transform: translateY(-12px);
}
.hero__cursor {
    display: inline-block;
    width: 4px;
    height: 0.85em;
    background: var(--color-accent);
    vertical-align: -0.05em;
    margin-left: 4px;
    animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__lede {
    font-size: clamp(18px, 1.8vw, 22px);
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: -0.005em;
    color: var(--color-ink);
    margin: 0 0 var(--s-4);
    max-width: 60ch;
}

.hero__body {
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-ink-soft);
    margin: 0 0 var(--s-6);
    max-width: 62ch;
}

.hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--s-2);
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--s-1);
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 999px;
    transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), gap var(--dur) var(--ease);
    cursor: pointer;
}
.btn--primary {
    background: var(--color-ink);
    color: var(--color-bg);
}
.btn--primary:hover { background: var(--color-accent); gap: 12px; }
.btn--ghost {
    background: transparent;
    color: var(--color-ink);
    border: 1px solid var(--color-ink);
}
.btn--ghost:hover { background: var(--color-ink); color: var(--color-bg); gap: 12px; }
.btn svg { transition: transform var(--dur) var(--ease); }
.btn:hover svg { transform: translate(2px, -2px); }

/* =============================================================
   SECTION HEADERS
   ============================================================= */
.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--s-3);
    margin-bottom: var(--s-8);
}
.section-head__title {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0;
}
.section-head__link {
    font-size: 14px;
    color: var(--color-muted);
    border-bottom: 1px solid var(--color-line);
    padding-bottom: 2px;
    transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
    cursor: pointer;
}
.section-head__link:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* =============================================================
   VIEW TOGGLE — switch between list (Tony Jin) and card (Hayden) modes
   ============================================================= */
.view-toggle {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--color-line);
    border-radius: 999px;
}
.view-toggle__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
    border-radius: 999px;
    transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
    cursor: pointer;
}
.view-toggle__btn:hover { color: var(--color-ink); }
.view-toggle__btn.is-active {
    background: var(--color-ink);
    color: var(--color-bg);
}
.view-toggle__btn svg { display: block; }

/* =============================================================
   FEATURED WORK — supports two layouts
   List mode: Tony Jin horizontal rows
   Card mode: Hayden grid with image + title + description + meta
   ============================================================= */
.work {
    padding: var(--s-10) 0 var(--s-12);
}

.work__subhead {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: var(--s-8) 0 var(--s-4);
    padding-top: var(--s-4);
    border-top: 1px solid var(--color-line);
}
.work__subhead:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* ============== LIST MODE (default) — compact list rows ============== */
.cards[data-view="list"] {
    border-top: 1px solid var(--color-line);
}

/* The card BUTTON itself is the grid; image + row are inline siblings */
.cards[data-view="list"] .card {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: var(--s-2);
    align-items: center;
    padding: var(--s-2) 0;
    border-bottom: 1px solid var(--color-line);
    border-radius: 0;
}
@media (min-width: 800px) {
    .cards[data-view="list"] .card {
        grid-template-columns: 64px 1fr;
        gap: var(--s-3);
    }
}
.cards[data-view="list"] .card__bottom-meta { display: none; }

/* card__row sits in column 2 and lays out title/meta/arrow horizontally */
.cards[data-view="list"] .card__row {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    min-width: 0;
}

/* Tiny thumbnail — sits in column 1 of the card grid */
.cards[data-view="list"] .card__media {
    display: block;
    width: 56px;
    height: 40px;
    overflow: hidden;
    border-radius: 3px;
    background: var(--color-line);
    flex-shrink: 0;
}
@media (min-width: 800px) {
    .cards[data-view="list"] .card__media {
        width: 64px;
        height: 44px;
    }
}
.cards[data-view="list"] .card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--dur-slow) var(--ease);
}
.cards[data-view="list"] .card:hover .card__media img { transform: scale(1.08); }

/* List-mode title — single-line, takes only what it needs */
.cards[data-view="list"] .card__title {
    font-size: 17px;
    font-weight: 500;
    letter-spacing: -0.005em;
    line-height: 1.25;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex-shrink: 0;
    max-width: 220px;
}
@media (min-width: 800px) {
    .cards[data-view="list"] .card__title {
        font-size: 18px;
        max-width: 280px;
    }
}

/* List-mode arrow stays at far right */
.cards[data-view="list"] .card__arrow {
    width: 32px;
    height: 32px;
    margin-left: auto;
    flex-shrink: 0;
}

/* Compact meta block — horizontal, fills remaining space */
.cards[data-view="list"] .card__meta {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--s-2);
    min-width: 0;
    flex: 1;
}
.cards[data-view="list"] .card__tags {
    flex-shrink: 0;
}
.cards[data-view="list"] .card__desc {
    font-size: 13px;
    line-height: 1.4;
    color: var(--color-muted);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex: 1;
}
.cards[data-view="list"] .card__tag {
    font-size: 10px;
    padding: 3px 7px;
}

/* On mobile, tags/desc collapse and the arrow hides */
@media (max-width: 799px) {
    .cards[data-view="list"] .card__row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--s-1);
    }
    .cards[data-view="list"] .card__title {
        max-width: 100%;
    }
    .cards[data-view="list"] .card__meta {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }
    .cards[data-view="list"] .card__desc {
        white-space: normal;
    }
    .cards[data-view="list"] .card__arrow {
        display: none;
    }
}

/* ============== CARD MODE (Hayden grid) ============== */
.cards[data-view="card"] {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-5);
    border-top: none;
}
@media (min-width: 700px) {
    .cards[data-view="card"] { grid-template-columns: repeat(2, 1fr); gap: var(--s-5) var(--s-4); }
}
@media (min-width: 1100px) {
    .cards[data-view="card"] { grid-template-columns: repeat(3, 1fr); }
}

.cards[data-view="card"] .card {
    padding: 0;
    border-bottom: none;
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--dur) var(--ease), border-color var(--dur-fast) var(--ease), box-shadow var(--dur) var(--ease);
}
.cards[data-view="card"] .card:hover {
    transform: translateY(-4px);
    border-color: #d4d0c7;
    box-shadow: 0 24px 48px -24px rgba(17, 17, 17, 0.18);
    padding-left: 0;
}

.cards[data-view="card"] .card__media {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--color-line);
    flex-shrink: 0;
    border-radius: 0;
}
.cards[data-view="card"] .card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--dur-slow) var(--ease);
}
.cards[data-view="card"] .card:hover .card__media img { transform: scale(1.05); }

.cards[data-view="card"] .card__row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;       /* left-justify all content */
    text-align: left;
    gap: var(--s-2);
    padding: var(--s-4);
    flex: 1;
}
.cards[data-view="card"] .card__title {
    font-size: 22px;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin: 0;
    text-align: left;              /* explicit left-justify */
}
.cards[data-view="card"] .card__meta { gap: var(--s-2); align-items: flex-start; }
.cards[data-view="card"] .card__desc {
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-ink-soft);
    text-align: left;
}
.cards[data-view="card"] .card__arrow { display: none; }

/* Bottom meta strip (year · client) — Hayden-style */
.cards[data-view="card"] .card__bottom-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    padding-top: var(--s-2);
    border-top: 1px solid var(--color-line);
    width: 100%;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
}
.cards[data-view="card"] .card__bottom-meta strong {
    color: var(--color-ink-soft);
    font-weight: 500;
}

/* Floating cursor preview is no longer needed — inline thumbnails handle both modes */
.card__preview { display: none !important; }

.card {
    display: block;
    width: 100%;
    text-align: left;
    cursor: pointer;
    position: relative;
    transition: padding-left var(--dur) var(--ease);
}

.card__row {
    /* Layout defined per-view-mode above */
    align-items: start;
}

@media (min-width: 800px) {
    .card:hover { padding-left: var(--s-2); }
}

.card__title {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1.05;
    margin: 0;
    color: var(--color-ink);
    text-align: left;
    transition: color var(--dur-fast) var(--ease);
}
.card:hover .card__title { color: var(--color-accent); }

.card__meta {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
}

.card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.card__tag {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-ink-soft);
    padding: 5px 10px;
    border: 1px solid var(--color-line);
    border-radius: 999px;
    background: rgba(255,255,255,0.4);
    transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.card:hover .card__tag {
    background: var(--color-bg);
    border-color: #d4d0c7;
}

.card__desc {
    font-size: 16px;
    line-height: 1.55;
    color: var(--color-ink-soft);
    margin: 0;
    max-width: 56ch;
}

.card__arrow {
    display: none;
}
@media (min-width: 800px) {
    .card__arrow {
        display: grid;
        place-items: center;
        width: 44px; height: 44px;
        border: 1px solid var(--color-line);
        border-radius: 50%;
        color: var(--color-ink);
        transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur) var(--ease);
    }
    .card:hover .card__arrow {
        background: var(--color-ink);
        color: var(--color-bg);
        border-color: var(--color-ink);
        transform: translateX(6px);
    }
}

/* Floating preview thumbnail that follows cursor (desktop only) */
.card__preview {
    display: none;
}
@media (min-width: 1024px) {
    .card__preview {
        display: block;
        position: fixed;
        top: 0; left: 0;
        width: 320px;
        height: 220px;
        pointer-events: none;
        opacity: 0;
        z-index: 50;
        border-radius: 6px;
        overflow: hidden;
        background: var(--color-line);
        box-shadow: 0 24px 48px -16px rgba(17, 17, 17, 0.25);
        transition: opacity var(--dur) var(--ease);
        transform: translate(-50%, -50%);
    }
    .card__preview img {
        width: 100%; height: 100%;
        object-fit: cover;
    }
    .card__preview.is-visible { opacity: 1; }
}

/* =============================================================
   ABOUT STRIP
   ============================================================= */
.about {
    padding: var(--s-12) 0;
    border-top: 1px solid var(--color-line);
}
.about__heading {
    font-size: clamp(28px, 4vw, 52px);
    font-weight: 300;
    line-height: 1.2;
    letter-spacing: -0.025em;
    margin: 0 0 var(--s-5);
    max-width: 22ch;
    color: var(--color-ink);
}
.about__heading em { font-style: italic; color: var(--color-accent); font-weight: 300; }

/* =============================================================
   CONTACT SECTION
   ============================================================= */
.contact {
    padding: var(--s-12) 0;
    border-top: 1px solid var(--color-line);
}

.contact__intro {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-3);
    margin-bottom: var(--s-8);
    align-items: end;
}
@media (min-width: 800px) {
    .contact__intro {
        grid-template-columns: 1.4fr 1fr;
        gap: var(--s-8);
    }
}

.contact__heading {
    font-size: clamp(28px, 4vw, 52px);
    font-weight: 300;
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin: 0;
    max-width: 18ch;
    color: var(--color-ink);
}
.contact__heading em { font-style: italic; color: var(--color-accent); font-weight: 300; }

.contact__copy {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-ink-soft);
    margin: 0;
    max-width: 42ch;
}

.contact__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-6);
}
@media (min-width: 900px) {
    .contact__layout {
        grid-template-columns: 1.4fr 1fr;
        gap: var(--s-8);
    }
}

/* The form */
.contact-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-3);
}
@media (min-width: 600px) {
    .contact-form { grid-template-columns: 1fr 1fr; }
    .contact-form__field--full { grid-column: 1 / -1; }
}

.contact-form__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.contact-form__label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.contact-form__input {
    width: 100%;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-ink);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-line);
    padding: 10px 0;
    transition: border-color var(--dur-fast) var(--ease);
    border-radius: 0;
    appearance: none;
    -webkit-appearance: none;
}
.contact-form__input::placeholder {
    color: var(--color-muted);
    opacity: 0.7;
}
.contact-form__input:hover { border-color: #c9c4ba; }
.contact-form__input:focus {
    outline: none;
    border-color: var(--color-accent);
}

textarea.contact-form__input {
    resize: vertical;
    min-height: 100px;
    font-family: var(--font-sans);
}

.contact-form__submit {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: var(--s-2);
}

/* Side panel — quick contact links */
.contact-aside {
    display: flex;
    flex-direction: column;
    gap: var(--s-1);
    padding-top: var(--s-1);
}

.contact-aside__title {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 var(--s-2);
}

.contact-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-2);
    padding: var(--s-2) 0;
    border-bottom: 1px solid var(--color-line);
    font-size: 16px;
    color: var(--color-ink);
    transition: color var(--dur-fast) var(--ease), padding-left var(--dur) var(--ease);
    cursor: pointer;
    width: 100%;
    text-align: left;
}
.contact-link:hover {
    color: var(--color-accent);
    padding-left: var(--s-1);
}
.contact-link__label {
    display: flex;
    align-items: baseline;
    gap: var(--s-2);
}
.contact-link__label small {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
}
.contact-link svg {
    flex-shrink: 0;
    transition: transform var(--dur) var(--ease);
}
.contact-link:hover svg { transform: translate(2px, -2px); }

/* Resume button — primary callout in the aside */
.contact-resume {
    display: inline-flex;
    align-items: center;
    gap: var(--s-1);
    padding: 14px 20px;
    margin-top: var(--s-3);
    background: var(--color-ink);
    color: var(--color-bg);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.005em;
    transition: background var(--dur-fast) var(--ease), gap var(--dur) var(--ease);
    align-self: flex-start;
}
.contact-resume:hover {
    background: var(--color-accent);
    gap: 12px;
}
.contact-resume svg { transition: transform var(--dur) var(--ease); }
.contact-resume:hover svg { transform: translateY(2px); }

/* Inline success message */
.contact-form__message {
    grid-column: 1 / -1;
    padding: var(--s-2) 0;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--color-accent);
    opacity: 0;
    transition: opacity var(--dur) var(--ease);
}
.contact-form__message.is-visible { opacity: 1; }

/* =============================================================
   FOOTER
   ============================================================= */
.footer {
    padding: var(--s-8) 0 var(--s-5);
    border-top: 1px solid var(--color-line);
}
.footer__grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--s-3);
    font-size: 14px;
    color: var(--color-muted);
}
.footer__links { display: flex; gap: var(--s-3); }
.footer__links a { color: var(--color-ink-soft); transition: color var(--dur-fast) var(--ease); }
.footer__links a:hover { color: var(--color-accent); }

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: 4px;
}

/* =============================================================
   CASE STUDY
   ============================================================= */
.case__header { padding-top: clamp(120px, 16vh, 180px); padding-bottom: var(--s-6); }
.case__back {
    display: inline-flex;
    align-items: center;
    gap: var(--s-1);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--s-5);
    transition: color var(--dur-fast) var(--ease), gap var(--dur) var(--ease);
    cursor: pointer;
}
.case__back:hover { color: var(--color-accent); gap: var(--s-2); }
.case__back svg { transition: transform var(--dur) var(--ease); }
.case__back:hover svg { transform: translateX(-4px); }
.case__eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 var(--s-3);
}
.case__title {
    font-size: clamp(48px, 8vw, 120px);
    font-weight: 300;
    line-height: 0.95;
    letter-spacing: -0.04em;
    margin: 0 0 var(--s-4);
}
.case__link { text-decoration: underline; opacity: 0.6; transition: opacity var(--dur-fast) var(--ease); white-space: nowrap; }
.case__link:hover { opacity: 1; }
.case__deck {
    font-size: clamp(18px, 2vw, 26px);
    font-weight: 300;
    line-height: 1.4;
    letter-spacing: -0.01em;
    max-width: 32ch;
    margin: 0;
    color: var(--color-ink);
}
.case__banner {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-line);
    margin: var(--s-6) 0 var(--s-10);
}
.case__banner img { width: 100%; height: 100%; object-fit: cover; }
.case__overview { padding-bottom: var(--s-12); }
.overview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-4) var(--s-5);
    padding: var(--s-5) 0;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    margin: 0;
}
@media (min-width: 600px) { .overview-grid { grid-template-columns: repeat(3, 1fr); } }
.overview-grid__item dt {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 6px;
}
.overview-grid__item dd { margin: 0; font-size: 16px; color: var(--color-ink); }

.case__section { padding: var(--s-12) 0; }
.case__section--alt {
    background: rgba(255, 255, 255, 0.55);
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
}
.case-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-4);
    margin-bottom: var(--s-6);
}
@media (min-width: 900px) {
    .case-row { grid-template-columns: 240px 1fr; gap: var(--s-8); }
}
.case-row__label {
    display: flex;
    flex-direction: column;
    gap: var(--s-1);
    position: sticky;
    top: 96px;
    align-self: flex-start;
    height: fit-content;
}
@media (max-width: 899px) { .case-row__label { position: static; } }
.section-index {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--color-accent);
}
.section-label {
    font-size: clamp(22px, 2.4vw, 28px);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0;
}
.case-row__body { max-width: 64ch; }
.case-row__body p {
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-ink-soft);
    margin: 0 0 var(--s-3);
}
.case-row__body p:last-child { margin-bottom: 0; }
.case-row__body strong { color: var(--color-ink); font-weight: 500; }
.case-row__body em { font-style: italic; color: var(--color-accent); }
.case-lede {
    font-size: clamp(18px, 1.9vw, 22px) !important;
    font-weight: 400 !important;
    line-height: 1.45 !important;
    color: var(--color-ink) !important;
    margin-bottom: var(--s-4) !important;
}
.insights {
    list-style: none;
    padding: 0;
    margin: var(--s-4) 0 0;
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
}
.insights li {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: var(--s-2);
    padding-top: var(--s-3);
    border-top: 1px solid var(--color-line);
}
.insights__num { font-family: var(--font-mono); font-size: 13px; color: var(--color-accent); }
.insights h3 {
    font-size: 18px;
    font-weight: 500;
    margin: 0 0 var(--s-1);
    color: var(--color-ink);
}
.insights p { margin: 0 !important; color: var(--color-ink-soft); }
.solution-image { margin: var(--s-6) 0 var(--s-8); }
.solution-image img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 4px;
    background: var(--color-line);
}
.features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-4);
    padding-top: var(--s-5);
    border-top: 1px solid var(--color-line);
}
@media (min-width: 700px) { .features { grid-template-columns: repeat(3, 1fr); gap: var(--s-5); } }
.features__item h3 {
    font-size: 17px;
    font-weight: 500;
    margin: 0 0 6px;
    color: var(--color-ink);
}
.features__item p { font-size: 15px; line-height: 1.6; color: var(--color-ink-soft); margin: 0; }
.results {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-4);
    margin: var(--s-6) 0 var(--s-8);
}
@media (min-width: 700px) { .results { grid-template-columns: repeat(3, 1fr); } }
.results__item { padding: var(--s-4) 0; border-top: 1px solid var(--color-ink); }
.results__num {
    display: block;
    font-size: clamp(40px, 5vw, 60px);
    font-weight: 300;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--color-accent);
    margin-bottom: var(--s-1);
}
.results__item p { font-size: 14px; color: var(--color-ink-soft); margin: 0; max-width: 24ch; }
.case__next { padding: var(--s-8) 0 var(--s-12); border-top: 1px solid var(--color-line); }
.next-link {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--s-3);
    padding: var(--s-3) 0;
    transition: padding var(--dur) var(--ease);
    cursor: pointer;
    text-align: left;
    width: 100%;
}
.next-link:hover { padding-left: var(--s-2); }
.next-link__label {
    grid-column: 1; grid-row: 1;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
}
.next-link__title {
    grid-column: 1; grid-row: 2;
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 300;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--color-ink);
    transition: color var(--dur-fast) var(--ease);
}
.next-link:hover .next-link__title { color: var(--color-accent); }
.next-link__arrow {
    grid-column: 2; grid-row: 1 / 3;
    display: grid;
    place-items: center;
    width: 52px; height: 52px;
    border: 1px solid var(--color-ink);
    border-radius: 50%;
    transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur) var(--ease);
}
.next-link:hover .next-link__arrow { background: var(--color-ink); color: var(--color-bg); transform: translateX(8px); }

@media (max-width: 700px) {
    .nav__links { gap: var(--s-2); }
    .hero { padding-top: 120px; padding-bottom: var(--s-8); }
    .work, .about { padding: var(--s-8) 0; }
}