:root {
    --portfolio-bg: #f7f9fb;
    --portfolio-surface: #ffffff;
    --portfolio-ink: #172026;
    --portfolio-muted: #5b6670;
    --portfolio-line: #dfe6ea;
    --portfolio-teal: #007f73;
    --portfolio-red: #a53f4b;
    --portfolio-yellow: #f3c04d;
    --portfolio-charcoal: #24313a;
    --portfolio-radius: 8px;
    --portfolio-shadow: 0 18px 55px rgba(23, 32, 38, 0.12);
}

html {
    direction: ltr;
    scroll-padding-top: 88px;
}

body {
    margin: 0;
    font-family: Inter, Assistant, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--portfolio-ink);
    background: var(--portfolio-bg);
}

h1,
h2,
h3,
h4,
p {
    margin: 0;
    background: none;
    color: inherit;
    letter-spacing: 0;
}

a {
    color: inherit;
}

.portfolio-main {
    overflow: hidden;
}

.portfolio-section {
    padding: 72px 24px;
}

.section-inner {
    width: min(1120px, 100%);
    margin: 0 auto;
}

.section-kicker {
    margin-bottom: 12px;
    color: var(--portfolio-teal);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.section-heading {
    max-width: 760px;
    font-size: 2.3rem;
    line-height: 1.08;
    font-weight: 800;
    color: var(--portfolio-ink);
}

.section-copy {
    max-width: 760px;
    margin-top: 18px;
    color: var(--portfolio-muted);
    font-size: 1.05rem;
    line-height: 1.72;
}

.hero {
    min-height: 78svh;
    padding: 112px 24px 58px;
    display: flex;
    align-items: center;
    position: relative;
    color: #ffffff;
    isolation: isolate;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(18, 25, 29, 0.92), rgba(18, 25, 29, 0.72) 42%, rgba(18, 25, 29, 0.28)),
        url("../../images/ai-automation-hero.webp") center / cover no-repeat;
    z-index: -2;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 38%;
    background: linear-gradient(180deg, rgba(247, 249, 251, 0), var(--portfolio-bg));
    z-index: -1;
}

.hero-inner {
    width: min(1120px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.62fr);
    gap: 48px;
    align-items: end;
}

.hero-kicker {
    margin-bottom: 18px;
    color: var(--portfolio-yellow);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 760px;
    color: #ffffff;
    font-size: 4.15rem;
    line-height: 0.98;
    font-weight: 800;
}

.hero-lede {
    max-width: 710px;
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.22rem;
    line-height: 1.65;
}

.hero-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.hero-actions {
    max-width: 610px;
}

.hero-actions .portfolio-button {
    flex: 1 1 calc(50% - 6px);
}

.portfolio-button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: var(--portfolio-radius);
    font-weight: 800;
    text-decoration: none;
    line-height: 1;
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.portfolio-button:hover {
    transform: translateY(-2px);
}

.portfolio-button:focus-visible,
.project-link:focus-visible,
.contact-list a:focus-visible {
    outline: 3px solid rgba(243, 192, 77, 0.82);
    outline-offset: 3px;
}

.portfolio-button svg {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.portfolio-button.primary {
    background: var(--portfolio-yellow);
    color: #11181c;
    box-shadow: 0 14px 30px rgba(243, 192, 77, 0.22);
}

.portfolio-button.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
}

.portfolio-button.dark {
    background: var(--portfolio-charcoal);
    color: #ffffff;
}

.portfolio-button.light {
    background: #ffffff;
    color: var(--portfolio-charcoal);
    border-color: var(--portfolio-line);
}

.portrait-panel {
    align-self: center;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.58);
    border-radius: var(--portfolio-radius);
    box-shadow: var(--portfolio-shadow);
    color: var(--portfolio-ink);
    overflow: hidden;
}

.portrait-frame {
    position: relative;
    aspect-ratio: 4 / 5;
    background: #dfe6ea;
    overflow: hidden;
}

.portrait-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: 50% 30%;
}

.portrait-copy {
    padding: 20px 22px 22px;
}

.portrait-copy strong {
    display: block;
    color: var(--portfolio-ink);
    font-size: 1.08rem;
    line-height: 1.3;
}

.portrait-copy span {
    display: block;
    margin-top: 7px;
    color: var(--portfolio-muted);
    font-size: 0.94rem;
    font-weight: 600;
    line-height: 1.4;
}

.proof-band {
    padding: 26px 24px;
    background: #ffffff;
    border-bottom: 1px solid var(--portfolio-line);
}

.proof-grid {
    width: min(1120px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.proof-item {
    min-height: 94px;
    padding: 18px;
    border-left: 4px solid var(--portfolio-teal);
    background: #f7f9fb;
    border-radius: var(--portfolio-radius);
}

.proof-number {
    display: block;
    color: var(--portfolio-charcoal);
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1;
}

.proof-label {
    display: block;
    margin-top: 8px;
    color: var(--portfolio-muted);
    font-size: 0.9rem;
    line-height: 1.45;
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 34px;
}

.focus-card,
.project-card,
.experience-item,
.stack-group {
    background: var(--portfolio-surface);
    border: 1px solid var(--portfolio-line);
    border-radius: var(--portfolio-radius);
    box-shadow: 0 12px 34px rgba(23, 32, 38, 0.06);
}

.focus-card {
    min-height: 230px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.focus-card::before {
    content: "";
    width: 42px;
    height: 5px;
    border-radius: 999px;
    background: var(--accent, var(--portfolio-teal));
}

.focus-card h3,
.project-card h3,
.experience-item h3,
.stack-group h3 {
    color: var(--portfolio-ink);
    font-size: 1.2rem;
    line-height: 1.25;
    font-weight: 800;
}

.focus-card p,
.project-card p,
.experience-item p {
    color: var(--portfolio-muted);
    font-size: 0.98rem;
    line-height: 1.7;
}

.projects-band {
    background: #edf4f3;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 34px;
}

.project-card {
    min-height: 320px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.project-topline {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    justify-content: space-between;
}

.project-year {
    color: var(--portfolio-red);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-type {
    padding: 5px 8px;
    border-radius: 999px;
    background: #f1f5f7;
    color: var(--portfolio-muted);
    font-size: 0.78rem;
    font-weight: 800;
}

.project-points {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
    color: var(--portfolio-ink);
    font-size: 0.95rem;
    line-height: 1.55;
}

.project-points li {
    position: relative;
    padding-left: 18px;
}

.project-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--portfolio-teal);
}

.tech-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.tech-row span {
    padding: 6px 8px;
    border-radius: 999px;
    background: #f6f8f9;
    border: 1px solid var(--portfolio-line);
    color: var(--portfolio-muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.project-link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 2px;
}

.project-link {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    border: 1px solid var(--portfolio-line);
    border-radius: var(--portfolio-radius);
    background: #ffffff;
    color: var(--portfolio-charcoal);
    font-size: 0.86rem;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
    transition: transform 160ms ease, border-color 160ms ease, color 160ms ease;
}

.project-link:hover {
    color: var(--portfolio-teal);
    border-color: rgba(0, 127, 115, 0.34);
    transform: translateY(-1px);
}

.stack-layout {
    display: grid;
    grid-template-columns: 0.82fr 1.18fr;
    gap: 28px;
    align-items: start;
}

.stack-visual {
    min-height: 520px;
    border-radius: var(--portfolio-radius);
    background:
        linear-gradient(180deg, rgba(23, 32, 38, 0.14), rgba(23, 32, 38, 0.66)),
        url("../../images/ai-automation-hero.webp") center / cover no-repeat;
    display: flex;
    align-items: end;
    padding: 24px;
    color: #ffffff;
}

.stack-visual p {
    max-width: 360px;
    color: rgba(255, 255, 255, 0.86);
    font-size: 1rem;
    line-height: 1.6;
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.stack-group {
    padding: 22px;
}

.stack-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.stack-list span {
    padding: 7px 9px;
    border: 1px solid var(--portfolio-line);
    border-radius: 999px;
    color: var(--portfolio-muted);
    background: #ffffff;
    font-size: 0.86rem;
    font-weight: 700;
}

.experience-band {
    background: var(--portfolio-charcoal);
    color: #ffffff;
}

.experience-band .section-kicker {
    color: var(--portfolio-yellow);
}

.experience-band .section-heading,
.experience-band .section-copy {
    color: #ffffff;
}

.experience-band .section-copy {
    color: rgba(255, 255, 255, 0.75);
}

.experience-list {
    display: grid;
    gap: 14px;
    margin-top: 34px;
}

.experience-item {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 22px;
    padding: 22px;
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow: none;
}

.experience-item h3,
.experience-item p {
    color: #ffffff;
}

.experience-item p {
    color: rgba(255, 255, 255, 0.74);
}

.experience-meta {
    color: var(--portfolio-yellow);
    font-size: 0.9rem;
    font-weight: 800;
    line-height: 1.5;
}

.contact-band {
    position: relative;
    background:
        linear-gradient(90deg, rgba(247, 249, 251, 0.96), rgba(247, 249, 251, 0.86)),
        url("../../images/calculators-hero.jpg") center / cover no-repeat;
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 34px;
    align-items: center;
}

.contact-card {
    padding: 24px;
    border: 1px solid var(--portfolio-line);
    border-radius: var(--portfolio-radius);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--portfolio-shadow);
}

.contact-list {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.contact-list a,
.contact-list span {
    display: block;
    color: var(--portfolio-ink);
    font-weight: 700;
    line-height: 1.45;
    text-decoration: none;
}

.contact-list small {
    display: block;
    margin-top: 3px;
    color: var(--portfolio-muted);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

@media (max-width: 980px) {
    .hero-inner,
    .stack-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .portrait-panel {
        max-width: 620px;
    }

    .proof-grid,
    .focus-grid,
    .project-grid,
    .stack-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .stack-visual {
        min-height: 360px;
    }
}

@media (max-width: 680px) {
    .portfolio-section {
        padding: 48px 18px;
    }

    .hero {
        min-height: auto;
        padding: 84px 18px 24px;
    }

    .hero::before {
        background:
            linear-gradient(180deg, rgba(18, 25, 29, 0.92), rgba(18, 25, 29, 0.7)),
            url("../../images/ai-automation-hero-mobile.webp") center / cover no-repeat;
    }

    .hero h1 {
        max-width: 12ch;
        font-size: 2.42rem;
        line-height: 1.02;
    }

    .portrait-panel {
        max-width: 156px;
        margin: 16px auto 0;
    }

    .portrait-copy {
        padding: 9px 10px 10px;
        text-align: center;
    }

    .portrait-copy strong {
        font-size: 0.92rem;
    }

    .portrait-copy span {
        display: none;
    }

    .portrait-frame {
        aspect-ratio: 1 / 1;
    }

    .hero-kicker {
        margin-bottom: 14px;
        font-size: 0.72rem;
        line-height: 1.45;
    }

    .hero-lede {
        max-width: 35rem;
        margin-top: 18px;
        line-height: 1.52;
    }

    .hero-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-top: 22px;
    }

    .hero-actions .portfolio-button {
        min-height: 48px;
        width: 100%;
        padding: 0 12px;
        font-size: 0.92rem;
    }

    .hero-lede,
    .section-copy {
        font-size: 1rem;
    }

    .section-heading {
        font-size: 1.78rem;
        line-height: 1.12;
    }

    .section-copy {
        margin-top: 14px;
        line-height: 1.62;
    }

    .proof-band {
        padding: 18px;
    }

    .proof-grid,
    .focus-grid,
    .project-grid,
    .stack-grid,
    .experience-list {
        gap: 12px;
        margin-top: 24px;
    }

    .proof-item {
        min-height: auto;
        padding: 16px;
    }

    .proof-number {
        font-size: 1.42rem;
    }

    .focus-card,
    .project-card,
    .stack-group {
        min-height: auto;
        padding: 18px;
    }

    .project-card {
        gap: 14px;
    }

    .project-points {
        gap: 8px;
        font-size: 0.92rem;
        line-height: 1.5;
    }

    .tech-row,
    .stack-list {
        gap: 6px;
    }

    .stack-visual {
        min-height: 240px;
        padding: 18px;
    }

    .contact-card {
        padding: 18px;
    }

    .proof-grid,
    .focus-grid,
    .project-grid,
    .stack-grid {
        grid-template-columns: 1fr;
    }

    .experience-item {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 18px;
    }

    .contact-actions .portfolio-button {
        width: 100%;
    }
}

@media (max-width: 360px) {
    .hero h1 {
        font-size: 2.16rem;
    }

    .hero-actions {
        grid-template-columns: 1fr;
    }

    .portrait-panel {
        max-width: 144px;
    }
}