:root {
    --bg: #f6f7f4;
    --surface: #ffffff;
    --surface-soft: #eef2ef;
    --text: #111827;
    --muted: #64706b;
    --line: #d9dfdb;
    --primary: #0f766e;
    --primary-strong: #115e59;
    --accent: #b45309;
    --shadow: 0 18px 50px rgba(17, 24, 39, 0.08);
}

[data-theme="dark"] {
    --bg: #111413;
    --surface: #181d1b;
    --surface-soft: #202724;
    --text: #f4f7f5;
    --muted: #a7b2ad;
    --line: #2d3733;
    --primary: #2dd4bf;
    --primary-strong: #5eead4;
    --accent: #f59e0b;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        linear-gradient(180deg, rgba(15, 118, 110, 0.08), transparent 420px),
        var(--bg);
    color: var(--text);
    transition: background-color 0.25s ease, color 0.25s ease;
}

.page-shell {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(color-mix(in srgb, var(--line) 55%, transparent) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in srgb, var(--line) 55%, transparent) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(to bottom, black, transparent 75%);
    opacity: 0.36;
}

.ambient {
    position: absolute;
    width: 34rem;
    height: 34rem;
    border-radius: 999px;
    filter: blur(88px);
    opacity: 0.26;
}

.ambient-one {
    top: -12rem;
    right: -8rem;
    background: var(--primary);
}

.ambient-two {
    bottom: 8rem;
    left: -16rem;
    background: var(--accent);
}

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

.section-pad {
    padding: 7rem 0;
}

.section-muted {
    background: color-mix(in srgb, var(--surface-soft) 78%, transparent);
    border-block: 1px solid var(--line);
}

.site-nav {
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.navbar-brand {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--text);
    font-weight: 800;
    letter-spacing: 0;
    background: var(--surface);
    box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 40%, transparent);
}

.navbar-toggler {
    border: 1px solid var(--line);
    color: var(--text);
    border-radius: 8px;
    padding: 0.45rem 0.65rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--primary) 24%, transparent);
}

.navbar-nav .nav-link {
    color: var(--muted);
    font-weight: 600;
    padding-inline: 0.9rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary);
}

.theme-toggle {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 9rem;
}

.eyebrow,
.section-kicker,
.project-label {
    margin: 0 0 1rem;
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0;
    max-width: 780px;
    color: var(--text);
    font-size: clamp(3.25rem, 8vw, 6.75rem);
    line-height: 0.96;
    font-weight: 800;
    letter-spacing: 0;
    text-wrap: balance;
}

.hero-role {
    max-width: 720px;
    margin: 1.8rem 0 0;
    color: var(--muted);
    font-size: clamp(1.15rem, 2.2vw, 1.45rem);
    line-height: 1.6;
    text-wrap: pretty;
}

.hero-meta {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    margin-top: 1.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font-weight: 700;
    box-shadow: var(--shadow);
}

.hero-meta strong {
    color: var(--primary);
}

.hero-meta i,
.quick-links i,
.skill-title i,
.credential-block i,
.btn i {
    color: var(--primary);
}

.hero-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    border-radius: 8px;
    border: 1px solid var(--line);
    padding: 0.78rem 1rem;
    font-weight: 800;
    transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

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

.btn-lg {
    padding: 0.95rem 1.25rem;
}

.btn-primary {
    background: var(--primary-strong);
    border-color: var(--primary-strong);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #062d2a;
}

[data-theme="dark"] .btn-primary {
    color: #062d2a;
}

.btn-outline {
    background: var(--surface);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: color-mix(in srgb, var(--primary) 9%, var(--surface));
}

.profile-panel {
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.profile-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 22%, transparent), transparent 42%);
    pointer-events: none;
}

.profile-photo {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--line);
    z-index: 1;
}

.profile-facts {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    margin-top: 0.8rem;
    z-index: 1;
}

.profile-facts div,
.skill-group,
.project-card,
.education-block,
.education-subcard,
.credential-block,
.contact-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.profile-facts div {
    padding: 0.85rem;
}

.profile-facts span {
    display: block;
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 700;
}

.profile-facts strong {
    display: block;
    margin-top: 0.25rem;
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.2;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 2.2rem;
}

.section-heading h2,
#about h2,
.contact-panel h2 {
    margin: 0;
    color: var(--text);
    font-size: clamp(2rem, 4vw, 3.35rem);
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: 0;
}

.section-lead {
    margin: 0;
    color: var(--muted);
    font-size: 1.12rem;
    line-height: 1.85;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.6rem;
}

.quick-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font-weight: 800;
}

.quick-links a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.skill-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.skill-group {
    padding: 1.25rem;
    box-shadow: 0 1px 0 color-mix(in srgb, #ffffff 12%, transparent);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.skill-group:hover,
.project-card:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--primary) 42%, var(--line));
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
}

.skill-title {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 1rem;
}

.skill-title h3 {
    margin: 0;
    color: var(--text);
    font-size: 1.05rem;
    font-weight: 800;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.tag-list span,
.project-stack {
    color: var(--muted);
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    font-weight: 700;
}

.tag-list span {
    padding: 0.5rem 0.65rem;
    font-size: 0.88rem;
    color: var(--text);
}

.project-list {
    display: grid;
    gap: 1rem;
}

.project-card {
    padding: clamp(1.25rem, 3vw, 2rem);
    box-shadow: var(--shadow);
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.project-topline {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.project-card h3 {
    margin: 0;
    color: var(--text);
    font-size: clamp(1.45rem, 3vw, 2.1rem);
    font-weight: 800;
    letter-spacing: 0;
}

.project-card .project-label {
    margin-bottom: 0.65rem;
}

.icon-link {
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
    color: var(--text);
}

.icon-link:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.project-stack {
    display: inline-flex;
    width: fit-content;
    margin: 1rem 0 1.2rem;
    padding: 0.5rem 0.75rem;
    color: var(--text);
}

.project-card ul {
    display: grid;
    gap: 0.65rem;
    margin: 0;
    padding-left: 1.1rem;
    color: var(--muted);
    line-height: 1.65;
}

.education-block,
.credential-block {
    padding: clamp(1.25rem, 3vw, 2rem);
    min-height: 360px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.education-block span {
    color: var(--primary);
    font-weight: 800;
}

.education-block h2 {
    margin: 0.75rem 0 0.5rem;
    max-width: 680px;
    font-size: clamp(1.75rem, 3vw, 2.55rem);
    line-height: 1.08;
    font-weight: 800;
}

.education-block p {
    color: var(--muted);
    font-size: 1.1rem;
}

.education-block strong {
    display: inline-flex;
    width: fit-content;
    margin-top: 0.5rem;
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    background: color-mix(in srgb, var(--primary) 12%, var(--surface-soft));
    color: var(--text);
}

.coursework {
    margin-top: 1.35rem;
}

.coursework h3 {
    margin: 0 0 0.75rem;
    color: var(--text);
    font-size: 1rem;
    font-weight: 800;
}

.coursework-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.coursework-list span {
    padding: 0.45rem 0.65rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-soft);
    color: var(--text);
    font-size: 0.86rem;
    font-weight: 700;
}

.education-subcard {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 0;
    padding: 1rem 1.15rem;
    position: relative;
    z-index: 1;
}

.education-subcard span {
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.education-subcard h3 {
    margin: 0.25rem 0 0;
    color: var(--text);
    font-size: 1.05rem;
    font-weight: 800;
}

.education-subcard strong {
    flex: 0 0 auto;
    color: var(--text);
    padding: 0.5rem 0.7rem;
    border-radius: 8px;
    background: color-mix(in srgb, var(--accent) 16%, var(--surface-soft));
}

.credential-block h3 {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin: 0 0 1.2rem;
    font-size: 1.25rem;
    font-weight: 800;
}

.credential-block dl {
    margin: 0;
}

.credential-block dt {
    color: var(--text);
    font-weight: 800;
}

.credential-block dd {
    margin: 0.35rem 0 1.2rem;
    color: var(--muted);
    line-height: 1.6;
}

.credential-block dd:last-child {
    margin-bottom: 0;
}

.contact-section {
    padding-top: 2rem;
}

.contact-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: center;
    padding: clamp(1.5rem, 4vw, 3rem);
    box-shadow: var(--shadow);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--primary) 10%, transparent), transparent 34%),
        var(--surface);
}

.contact-panel p:not(.section-kicker) {
    max-width: 720px;
    margin: 1rem 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.contact-actions {
    width: min(100%, 360px);
    margin-top: 0;
}

.contact-actions .btn {
    width: 100%;
}

.site-footer {
    padding: 1.5rem 0;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.site-footer .container {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-weight: 700;
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

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

.delay-1 {
    transition-delay: 90ms;
}

.delay-2 {
    transition-delay: 160ms;
}

.delay-3 {
    transition-delay: 230ms;
}

@media (max-width: 991.98px) {
    .section-pad {
        padding: 5.5rem 0;
    }

    .hero {
        min-height: auto;
        padding-top: 7.5rem;
    }

    .navbar-collapse {
        padding: 1rem 0 0.4rem;
    }

    .theme-toggle {
        margin-top: 0.5rem;
    }

    .skill-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .contact-actions {
        width: 100%;
    }

    .education-block,
    .credential-block {
        min-height: auto;
        height: auto;
        justify-content: flex-start;
    }

    .education-subcard {
        margin-bottom: 1.25rem;
    }
}

@media (max-width: 575.98px) {
    .section-pad {
        padding: 4.5rem 0;
    }

    .hero-actions .btn,
    .quick-links a {
        width: 100%;
    }

    .hero-meta {
        width: 100%;
        align-items: flex-start;
    }

    .education-block,
    .credential-block {
        padding: 1.35rem;
    }

    .education-block h2 {
        font-size: clamp(1.55rem, 9vw, 2.1rem);
    }

    .coursework {
        margin-top: 1rem;
    }

    .coursework-list {
        gap: 0.4rem;
    }

    .coursework-list span {
        padding: 0.42rem 0.55rem;
        font-size: 0.8rem;
    }

    .profile-facts,
    .skill-grid {
        grid-template-columns: 1fr;
    }

    .project-topline {
        align-items: flex-start;
    }

    .education-subcard {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-footer .container {
        flex-direction: column;
    }
}