/* ===========================
   Self-hosted Fonts
   =========================== */
@font-face {
    font-family: 'Architects Daughter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url(assets/fonts/architects-daughter-latin.woff2) format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'Architects Daughter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url(assets/fonts/architects-daughter-latin-ext.woff2) format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
    font-family: 'Caveat';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url(assets/fonts/caveat-latin.woff2) format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'Caveat';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url(assets/fonts/caveat-latin-ext.woff2) format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 500;
    font-display: swap;
    src: url(assets/fonts/inter-latin.woff2) format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 500;
    font-display: swap;
    src: url(assets/fonts/inter-latin-ext.woff2) format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ===========================
   Pencil-on-Paper / Wireframe Theme
   =========================== */
:root {
    --color-bg: #FEFEFE;
    --color-paper: #FAFAF8;
    --color-pencil: #333333;
    --color-pencil-light: #595959;
    --color-pencil-faint: #767676;
    --color-pencil-ghost: #E0E0E0;
    --color-highlight: rgba(255, 220, 100, 0.25);
    --color-blue-ink: #3D5C8A;
    --color-nav-bg: rgba(254, 254, 254, 0.9);
    --color-nav-bg-solid: rgba(254, 254, 254, 0.95);
    --color-dot-texture: rgba(0, 0, 0, 0.08);
    --color-line-texture: rgba(0, 0, 0, 0.12);
    --font-sketch: 'Caveat', cursive;
    --font-hand: 'Architects Daughter', cursive;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.3s ease;
    --max-width: 1000px;
}

/* Dark Theme */
[data-theme="dark"] {
    --color-bg: #1a1a1a;
    --color-paper: #222222;
    --color-pencil: #E8E8E8;
    --color-pencil-light: #B0B0B0;
    --color-pencil-faint: #888888;
    --color-pencil-ghost: #333333;
    --color-highlight: rgba(255, 220, 100, 0.12);
    --color-blue-ink: #89AED6;
    --color-nav-bg: rgba(26, 26, 26, 0.9);
    --color-nav-bg-solid: rgba(26, 26, 26, 0.95);
    --color-dot-texture: rgba(255, 255, 255, 0.08);
    --color-line-texture: rgba(255, 255, 255, 0.12);
    color-scheme: dark;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-pencil);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===========================
   Navigation
   =========================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-nav-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px dashed var(--color-pencil-ghost);
}

.nav__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-family: var(--font-sketch);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-pencil);
    transition: transform var(--transition);
}

.nav__logo:hover {
    transform: rotate(-1deg) scale(1.03);
}

.nav__links {
    display: flex;
    list-style: none;
    gap: 36px;
}

.nav__links a {
    font-family: var(--font-hand);
    font-size: 1rem;
    color: var(--color-pencil-light);
    position: relative;
    transition: color var(--transition);
}

.nav__links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-pencil);
    transition: width 0.3s ease;
    /* Slight wave effect */
    border-radius: 1px;
}

.nav__links a:hover {
    color: var(--color-pencil);
}

.nav__links a:hover::after {
    width: 100%;
}

/* Mobile toggle */
.nav__mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 8px;
}

.nav__mobile-toggle span {
    display: block;
    height: 1.5px;
    width: 100%;
    background: var(--color-pencil);
    border-radius: 2px;
    transition: all var(--transition);
}

/* Theme toggle */
.nav__theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1.5px dashed var(--color-pencil-faint);
    border-radius: 50%;
    background: transparent;
    color: var(--color-pencil);
    cursor: pointer;
    transition: all var(--transition);
    margin-left: 12px;
    flex-shrink: 0;
}

.nav__theme-toggle:hover {
    border-color: var(--color-pencil);
    transform: rotate(-8deg) scale(1.08);
    box-shadow: 2px 2px 0px var(--color-pencil-ghost);
}

.nav__theme-toggle svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition);
}

.nav__theme-toggle .icon-sun { display: none; }
.nav__theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .nav__theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .nav__theme-toggle .icon-moon { display: none; }

/* ===========================
   Sketch Dividers
   =========================== */
.sketch-divider {
    padding: 0 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.sketch-divider svg path {
    stroke: var(--color-pencil-ghost);
}

/* Dark mode: invert illustration SVGs */
[data-theme="dark"] .case-card__illustration svg,
[data-theme="dark"] .case-page__hero-illustration svg {
    filter: invert(0.85);
}

/* ===========================
   Section Titles
   =========================== */
.section__title {
    font-family: var(--font-sketch);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-pencil);
    margin-bottom: 48px;
    position: relative;
    display: inline-block;
}

.section__title .title-underline {
    display: block;
    margin-top: -2px;
}

/* ===========================
   Hero
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 64px;
    position: relative;
    background-image:
        radial-gradient(circle, var(--color-line-texture) 1px, transparent 1px);
    background-size: 20px 20px;
}

.hero__content {
    max-width: 640px;
    position: relative;
}

.hero__sketch-arrow {
    display: inline-block;
    vertical-align: middle;
    margin-left: 6px;
    opacity: 0.6;
    transform: scaleX(-1);
}

.hero__greeting {
    font-family: var(--font-hand);
    font-size: 1.15rem;
    color: var(--color-pencil-light);
    margin-bottom: 8px;
}

.hero__name {
    font-family: var(--font-sketch);
    font-size: clamp(3rem, 7vw, 4.5rem);
    font-weight: 700;
    line-height: 1.05;
    color: var(--color-pencil);
    letter-spacing: -0.02em;
}

.hero__underline {
    width: clamp(200px, 60%, 320px);
    margin-bottom: 12px;
    opacity: 0.7;
}

.hero__underline svg {
    width: 100%;
    height: auto;
}

.hero__title {
    font-family: var(--font-hand);
    font-size: clamp(1.2rem, 2.5vw, 1.5rem);
    font-weight: 400;
    color: var(--color-pencil-light);
    margin-bottom: 24px;
}

.hero__tagline {
    font-size: 1rem;
    color: var(--color-pencil-light);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 480px;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===========================
   Buttons — Sketchy style
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-hand);
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    position: relative;
}

.btn--primary {
    background: var(--color-pencil);
    color: var(--color-bg);
    border-radius: 4px;
    /* Slightly imperfect shape */
    border-radius: 3px 5px 4px 6px;
}

.btn--primary:hover {
    color: var(--color-bg);
    transform: translateY(-2px) rotate(-0.5deg);
    box-shadow: 3px 3px 0px var(--color-pencil-faint);
}

.btn--outline {
    background: transparent;
    color: var(--color-pencil);
    border: 1.5px dashed var(--color-pencil-faint);
    border-radius: 5px 3px 6px 4px;
}

.btn--outline:hover {
    border-color: var(--color-pencil);
    color: var(--color-pencil);
    transform: translateY(-2px) rotate(0.5deg);
    box-shadow: 3px 3px 0px var(--color-pencil-ghost);
}

/* ===========================
   About
   =========================== */
.about {
    padding: 100px 0;
    background-color: var(--color-paper);
}

.about__content {
    display: grid;
    gap: 40px;
}

/* Profile photo */
.about__photo {
    max-width: 200px;
}

.about__photo-img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 6px 10px 8px 12px;
    transition: all var(--transition);
}

.about__photo-img:hover {
    transform: rotate(-1deg);
    box-shadow: 4px 4px 0px var(--color-pencil-ghost);
}

/* When using a real image, add these back */
img.about__photo-img {
    border: 2px dashed var(--color-pencil-faint);
    filter: grayscale(100%);
}

img.about__photo-img:hover {
    filter: grayscale(0%);
}

.about__text p {
    font-size: 0.95rem;
    color: var(--color-pencil-light);
    line-height: 2;
    margin-bottom: 16px;
}

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

.about__resume-btn {
    margin-top: 20px;
    gap: 8px;
}

.about__skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-chip {
    display: inline-block;
    padding: 6px 16px;
    font-family: var(--font-hand);
    font-size: 0.85rem;
    color: var(--color-pencil);
    background: var(--color-highlight);
    border: 1px dashed var(--color-pencil-faint);
    border-radius: 3px 5px 4px 6px;
    transition: all var(--transition);
    cursor: default;
}

.skill-chip:hover {
    transform: rotate(-1deg) translateY(-2px);
    box-shadow: 2px 2px 0px var(--color-pencil-ghost);
}

/* ===========================
   Case Studies
   =========================== */
.case-studies {
    padding: 100px 0;
    background-image:
        radial-gradient(circle, var(--color-line-texture) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* --- Carousel --- */
.carousel {
    position: relative;
    overflow: hidden;
}

.carousel__track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.case-card {
    flex: 0 0 100%;
    min-width: 0;
    background: var(--color-bg);
    border: 1.5px dashed var(--color-pencil-faint);
    border-radius: 4px 8px 6px 10px;
    padding: 36px;
    transition: box-shadow var(--transition), border-color var(--transition);
    position: relative;
}

.case-card:hover {
    box-shadow: 5px 5px 0px var(--color-pencil-ghost);
    border-color: var(--color-pencil-light);
}

/* Card Illustrations */
.case-card__illustration {
    margin: -36px -36px 24px -36px;
    padding: 20px;
    background: var(--color-paper);
    border-bottom: 1px dashed var(--color-pencil-ghost);
    border-radius: 3px 7px 0 0;
    display: flex;
    justify-content: center;
}

.case-card__illustration svg {
    width: 100%;
    max-width: 400px;
    height: auto;
}

/* Carousel Controls */
.carousel__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 32px;
    padding-bottom: 6px;
}

.carousel__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1.5px dashed var(--color-pencil-faint);
    border-radius: 50%;
    background: var(--color-bg);
    color: var(--color-pencil);
    cursor: pointer;
    transition: all var(--transition);
}

.carousel__btn:hover {
    border-color: var(--color-pencil);
    transform: scale(1.08);
    box-shadow: 2px 2px 0px var(--color-pencil-ghost);
}

.carousel__dots {
    display: flex;
    gap: 10px;
}

.carousel__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid var(--color-pencil-faint);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition);
    padding: 0;
}

.carousel__dot.active {
    background: var(--color-pencil);
    border-color: var(--color-pencil);
}

.carousel__dot:hover {
    border-color: var(--color-pencil-light);
}

.case-card__number {
    font-family: var(--font-sketch);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-pencil-ghost);
    position: absolute;
    top: 16px;
    right: 24px;
    line-height: 1;
}

.case-card__tag {
    display: inline-block;
    font-family: var(--font-hand);
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    color: var(--color-blue-ink);
    background: rgba(74, 111, 165, 0.08);
    padding: 3px 10px;
    border-radius: 3px;
    margin-bottom: 14px;
    border: 1px solid rgba(74, 111, 165, 0.15);
}

.case-card__title {
    font-family: var(--font-sketch);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-pencil);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.case-card__desc {
    font-size: 0.9rem;
    color: var(--color-pencil-light);
    line-height: 1.8;
    margin-bottom: 24px;
}

.case-card__metrics {
    display: flex;
    gap: 32px;
    margin-bottom: 24px;
    padding-top: 20px;
    border-top: 1px dashed var(--color-pencil-ghost);
}

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

.metric__value {
    font-family: var(--font-sketch);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-pencil);
    line-height: 1.2;
}

.metric__label {
    font-family: var(--font-hand);
    font-size: 0.78rem;
    color: var(--color-pencil-faint);
    margin-top: 2px;
}

.case-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-hand);
    font-size: 0.9rem;
    color: var(--color-pencil-light);
    transition: all var(--transition);
}

.case-card__link:hover {
    color: var(--color-pencil);
}

.case-card__link svg {
    transition: transform var(--transition);
}

.case-card__link:hover svg {
    transform: translateX(4px);
}

.case-card__link::after {
    content: '';
    position: absolute;
    inset: 0;
}

/* ===========================
   Contact
   =========================== */
.contact {
    padding: 100px 0;
    background-color: var(--color-paper);
    text-align: center;
}

.contact .section__title {
    display: block;
    text-align: center;
}

.contact .section__title .title-underline {
    margin: -2px auto 0;
}

.contact__text {
    font-size: 1rem;
    color: var(--color-pencil-light);
    max-width: 480px;
    margin: 0 auto 48px;
    line-height: 1.8;
}

.contact__links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.contact__link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    background: var(--color-bg);
    border: 1.5px dashed var(--color-pencil-faint);
    border-radius: 5px 3px 6px 4px;
    color: var(--color-pencil);
    font-family: var(--font-hand);
    font-size: 0.88rem;
    transition: all var(--transition);
}

.contact__link:hover {
    transform: translateY(-2px) rotate(-0.5deg);
    box-shadow: 3px 3px 0px var(--color-pencil-ghost);
    border-color: var(--color-pencil-light);
    color: var(--color-pencil);
}

.contact__link svg {
    flex-shrink: 0;
    stroke: var(--color-pencil-light);
}

/* ===========================
   Footer
   =========================== */
.footer {
    padding: 28px 0;
    text-align: center;
    border-top: 1px dashed var(--color-pencil-ghost);
}

.footer p {
    font-family: var(--font-hand);
    font-size: 0.82rem;
    color: var(--color-pencil-faint);
}

.footer a {
    color: var(--color-pencil-faint);
    text-decoration: underline;
}

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

/* ===========================
   Animations
   =========================== */
.animate-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===========================
   Responsive
   =========================== */
@media (max-width: 767px) {
    .nav__links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-nav-bg-solid);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        flex-direction: column;
        align-items: center;
        gap: 0;
        padding: 16px 0;
        border-bottom: 1px dashed var(--color-pencil-ghost);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }

    .nav__links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav__links li {
        width: 100%;
        text-align: center;
    }

    .nav__links a {
        display: block;
        padding: 12px 24px;
    }

    .nav__links a::after {
        display: none;
    }

    .nav__mobile-toggle {
        display: flex;
    }

    .hero__name {
        font-size: 2.8rem;
    }

    .hero__sketch-arrow {
        display: none;
    }

    .section__title {
        font-size: 2rem;
        margin-bottom: 36px;
    }

    .case-card {
        padding: 28px;
    }

    .case-card__illustration {
        margin: -28px -28px 20px -28px;
        padding: 16px;
    }

    .case-card__number {
        font-size: 2.2rem;
        top: 12px;
        right: 16px;
    }

    .case-card__metrics {
        gap: 20px;
    }

    .contact__links {
        flex-direction: column;
        align-items: center;
    }
}

/* ===========================
   Case Study Detail Page
   =========================== */
.case-page {
    padding-top: 100px;
    padding-bottom: 80px;
    animation: pageIn 0.2s ease forwards;
}

@keyframes pageIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.case-page__back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-hand);
    font-size: 0.9rem;
    color: var(--color-pencil-light);
    margin-bottom: 40px;
    transition: color var(--transition);
}

.case-page__back:hover {
    color: var(--color-pencil);
}

.case-page__back svg {
    transition: transform var(--transition);
}

.case-page__back:hover svg {
    transform: translateX(-4px);
}

/* Case Page Hero Illustration */
.case-page__hero-illustration {
    margin-bottom: 40px;
    padding: 30px 20px;
    background: var(--color-paper);
    border: 1px dashed var(--color-pencil-ghost);
    border-radius: 4px 8px 6px 10px;
    display: flex;
    justify-content: center;
}

.case-page__hero-illustration svg {
    width: 100%;
    max-width: 700px;
    height: auto;
}

.case-page__tag {
    display: inline-block;
    font-family: var(--font-hand);
    font-size: 0.8rem;
    color: var(--color-blue-ink);
    background: rgba(74, 111, 165, 0.08);
    padding: 4px 12px;
    border-radius: 3px;
    border: 1px solid rgba(74, 111, 165, 0.15);
    margin-bottom: 16px;
}

.case-page__title {
    font-family: var(--font-sketch);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-pencil);
    margin-bottom: 12px;
    line-height: 1.15;
}

.case-page__subtitle {
    font-family: var(--font-hand);
    font-size: 1.1rem;
    color: var(--color-pencil-light);
    margin-bottom: 48px;
    max-width: 600px;
}

.case-page__wireframe-img {
    margin: 32px 0;
    padding: 20px;
    background: var(--color-paper);
    border: 1px dashed var(--color-pencil-ghost);
    border-radius: 4px 8px 6px 10px;
}

.case-page__wireframe-img img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.case-page__section {
    margin-bottom: 48px;
}

.case-page__section-title {
    font-family: var(--font-sketch);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-pencil);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--color-pencil-ghost);
}

.case-page__section p {
    font-size: 0.95rem;
    color: var(--color-pencil-light);
    line-height: 1.9;
    margin-bottom: 12px;
}

.case-page__section ul {
    list-style: none;
    padding: 0;
}

.case-page__section ul li {
    font-size: 0.95rem;
    color: var(--color-pencil-light);
    line-height: 1.8;
    padding-left: 20px;
    position: relative;
    margin-bottom: 6px;
}

.case-page__section ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 8px;
    height: 1.5px;
    background: var(--color-pencil-faint);
}

.case-page__metrics {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    padding: 28px 0;
    border-top: 1px dashed var(--color-pencil-ghost);
    border-bottom: 1px dashed var(--color-pencil-ghost);
    margin-bottom: 48px;
}

.case-page__metrics .metric__value {
    font-family: var(--font-sketch);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-pencil);
}

.case-page__metrics .metric__label {
    font-family: var(--font-hand);
    font-size: 0.82rem;
    color: var(--color-pencil-faint);
}

.case-page__nav {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px dashed var(--color-pencil-ghost);
}

.case-page__nav a {
    font-family: var(--font-hand);
    font-size: 0.9rem;
    color: var(--color-pencil-light);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition);
}

.case-page__nav a:hover {
    color: var(--color-pencil);
}

/* ===========================
   Skip Navigation Link
   =========================== */
/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    z-index: 10000;
    padding: 12px 24px;
    background: var(--color-pencil);
    color: var(--color-bg);
    font-family: var(--font-hand);
    font-size: 1rem;
    border-radius: 0 0 4px 4px;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    color: var(--color-bg);
}

/* ===========================
   Focus Styles
   =========================== */
:focus-visible {
    outline: 2px solid var(--color-pencil);
    outline-offset: 2px;
}

.btn:focus-visible {
    outline: 2px solid var(--color-pencil);
    outline-offset: 3px;
}

.carousel__btn:focus-visible,
.carousel__dot:focus-visible {
    outline: 2px solid var(--color-pencil);
    outline-offset: 2px;
}

.nav__theme-toggle:focus-visible {
    outline: 2px solid var(--color-pencil);
    outline-offset: 2px;
}

.contact__link:focus-visible {
    outline: 2px solid var(--color-pencil);
    outline-offset: 2px;
}

.case-card:focus-within {
    box-shadow: 5px 5px 0px var(--color-pencil-ghost);
    border-color: var(--color-pencil-light);
}

.case-card__link:focus-visible {
    outline: none;
}

/* ===========================
   Reduced Motion
   =========================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .animate-in {
        opacity: 1;
        transform: none;
    }

    .carousel__track {
        transition: none;
    }
}