/* =====================================================================
   MUHAMMAD SIDDIQ — PORTFOLIO  ·  "The Neural Lab"
   ===================================================================== */

:root {
    --bg: #0a0b0d;
    --bg-elev: #111316;
    --bg-soft: #0f1113;
    --ink: #f4f1ea;
    --ink-dim: #9a9a93;
    --ink-faint: #5d5d57;
    --line: rgba(244, 241, 234, 0.09);
    --line-strong: rgba(244, 241, 234, 0.18);
    --accent: #c6f24e;
    --accent-deep: #9bc930;
    --accent-2: #ff7a45;
    --accent-glow: rgba(198, 242, 78, 0.35);
    --font-display: "Bricolage Grotesque", sans-serif;
    --font-body: "Hanken Grotesk", sans-serif;
    --font-mono: "JetBrains Mono", monospace;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
    --pad: clamp(1.25rem, 4vw, 4rem);
    --maxw: 1400px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
a {
    color: inherit;
    text-decoration: none;
}
button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
}
ul {
    list-style: none;
}
img,
canvas,
svg {
    display: block;
    max-width: 100%;
}
::selection {
    background: var(--accent);
    color: #0a0b0d;
}
.mono {
    font-family: var(--font-mono);
    font-weight: 400;
    letter-spacing: 0.02em;
}

@media (hover: hover) and (pointer: fine) {
    * {
        cursor: none;
    }
}

/* atmosphere */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(
            120% 80% at 80% -10%,
            rgba(198, 242, 78, 0.06),
            transparent 60%
        ),
        radial-gradient(
            90% 70% at -10% 110%,
            rgba(255, 122, 69, 0.05),
            transparent 55%
        ),
        var(--bg);
}
.grain {
    position: fixed;
    inset: -50%;
    z-index: 9000;
    pointer-events: none;
    opacity: 0.05;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: grain 0.6s steps(2) infinite;
}
@keyframes grain {
    0% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(-3%, 2%);
    }
    50% {
        transform: translate(2%, -2%);
    }
    75% {
        transform: translate(-2%, -1%);
    }
    100% {
        transform: translate(1%, 2%);
    }
}
.vignette {
    position: fixed;
    inset: 0;
    z-index: 8000;
    pointer-events: none;
    box-shadow: inset 0 0 200px 40px rgba(0, 0, 0, 0.55);
}

/* loader */
.loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--bg);
    display: grid;
    place-content: center;
    gap: 1.4rem;
    justify-items: center;
    transition:
        opacity 0.6s var(--ease-out),
        visibility 0.6s;
}
.loader.is-done {
    opacity: 0;
    visibility: hidden;
}
.loader__bar {
    width: min(280px, 60vw);
    height: 2px;
    background: var(--line);
    overflow: hidden;
}
.loader__bar span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
    animation: load 1.6s var(--ease-out) forwards;
}
@keyframes load {
    to {
        width: 100%;
    }
}
.loader__label {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--ink-dim);
}

/* scroll progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    z-index: 9500;
}
.scroll-progress span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
    transition: width 0.1s linear;
}

/* cursor */
.cursor {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9600;
    pointer-events: none;
    transform: translate3d(-50%, -50%, 0);
    mix-blend-mode: difference;
}
.cursor__dot {
    position: absolute;
    top: 0;
    left: 0;
    width: 7px;
    height: 7px;
    margin: -3.5px 0 0 -3.5px;
    background: var(--ink);
    border-radius: 50%;
    transition:
        width 0.2s var(--ease-out),
        height 0.2s var(--ease-out),
        opacity 0.2s;
}
.cursor__ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 38px;
    height: 38px;
    margin: -19px 0 0 -19px;
    border: 1px solid rgba(244, 241, 234, 0.7);
    border-radius: 50%;
    transition:
        width 0.25s var(--ease-out),
        height 0.25s var(--ease-out),
        margin 0.25s var(--ease-out),
        border-color 0.25s,
        background 0.25s,
        opacity 0.25s;
}
.cursor.is-hover .cursor__ring {
    width: 64px;
    height: 64px;
    margin: -32px 0 0 -32px;
    border-color: var(--accent);
    background: rgba(198, 242, 78, 0.08);
}
.cursor.is-hover .cursor__dot {
    opacity: 0;
}
.cursor__label {
    position: absolute;
    top: 24px;
    left: 24px;
    font-size: 0.62rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ink);
    white-space: nowrap;
    opacity: 0;
    transform: translate(6px, 6px);
    transition:
        opacity 0.2s,
        transform 0.2s;
    mix-blend-mode: normal;
}
.cursor.has-label .cursor__label {
    opacity: 1;
    transform: translate(0, 0);
}
.cursor.is-down .cursor__ring {
    width: 28px;
    height: 28px;
    margin: -14px 0 0 -14px;
}
@media (hover: none), (pointer: coarse) {
    .cursor {
        display: none;
    }
}

/* nav */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 7000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem var(--pad);
    transition:
        background 0.4s,
        border-color 0.4s,
        padding 0.4s;
    border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
    background: rgba(10, 11, 13, 0.72);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom-color: var(--line);
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
}
.nav__brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: -0.02em;
}
.nav__mono {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--line-strong);
    border-radius: 7px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    transition:
        border-color 0.3s,
        background 0.3s;
}
.nav__brand:hover .nav__mono {
    border-color: var(--accent);
    background: rgba(198, 242, 78, 0.08);
}
.nav__name {
    opacity: 0.9;
}
.nav__links {
    display: flex;
    gap: clamp(1rem, 2.5vw, 2rem);
    font-size: 0.72rem;
    text-transform: uppercase;
}
.nav__links a {
    position: relative;
    color: var(--ink-dim);
    transition: color 0.3s;
}
.nav__links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s var(--ease-out);
}
.nav__links a:hover {
    color: var(--ink);
}
.nav__links a:hover::after {
    width: 100%;
}
.nav__cta {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.7rem 1.3rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    transition:
        border-color 0.3s,
        background 0.3s,
        color 0.3s;
}
.nav__cta:hover {
    border-color: var(--accent);
    background: var(--accent);
    color: #0a0b0d;
}
.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.nav__burger span {
    width: 22px;
    height: 1.5px;
    background: var(--ink);
    transition:
        transform 0.3s,
        opacity 0.3s;
}
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 6900;
    background: rgba(10, 11, 13, 0.96);
    backdrop-filter: blur(20px);
    display: grid;
    place-content: center;
    gap: 1.4rem;
    justify-items: center;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.4s,
        visibility 0.4s;
}
.mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
}
.mobile-menu a {
    font-size: 1.4rem;
    letter-spacing: 0.05em;
    color: var(--ink-dim);
    transition: color 0.3s;
}
.mobile-menu a:hover {
    color: var(--accent);
}
@media (max-width: 820px) {
    .nav__links,
    .nav__cta {
        display: none;
    }
    .nav__burger {
        display: flex;
    }
    .nav__name {
        display: none;
    }
}

/* layout */
.section {
    position: relative;
    z-index: 1;
    padding: clamp(6rem, 14vh, 9rem) var(--pad) clamp(5rem, 10vh, 8rem);
    max-width: var(--maxw);
    margin: 0 auto;
}
.section__head {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: clamp(2.5rem, 6vh, 4rem);
}
.section__num {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ink-dim);
    white-space: nowrap;
}
.section__rule {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--line-strong), transparent);
}

/* reveals */
.reveal-line,
.reveal-text,
.reveal-up {
    will-change: transform, opacity;
}
.reveal-line {
    opacity: 0;
    transform: translateY(24px);
    filter: blur(6px);
    transition:
        opacity 0.9s var(--ease-out),
        transform 0.9s var(--ease-out),
        filter 0.9s var(--ease-out);
}
.reveal-line.is-in {
    opacity: 1;
    transform: none;
    filter: blur(0);
}
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition:
        opacity 0.8s var(--ease-out),
        transform 0.8s var(--ease-out);
}
.reveal-up.is-in {
    opacity: 1;
    transform: none;
}
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 1s var(--ease-out),
        transform 1s var(--ease-out);
}
.reveal-text.is-in {
    opacity: 1;
    transform: none;
}

/* buttons */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 1rem 1.6rem;
    border-radius: 999px;
    transition:
        background 0.3s,
        color 0.3s,
        border-color 0.3s,
        box-shadow 0.3s;
    will-change: transform;
}
.btn svg {
    transition: transform 0.3s var(--ease-out);
}
.btn--primary {
    background: var(--accent);
    color: #0a0b0d;
    border: 1px solid var(--accent);
}
.btn--primary:hover {
    box-shadow: 0 8px 30px var(--accent-glow);
}
.btn--primary:hover svg {
    transform: translateX(4px);
}
.btn--ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line-strong);
}
.btn--ghost:hover {
    border-color: var(--ink);
    background: rgba(244, 241, 234, 0.04);
}
.magnetic {
    display: inline-flex;
    will-change: transform;
}

/* hero */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 6rem var(--pad) 5rem;
    overflow: hidden;
}
.hero__canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.hero__grid {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background-image:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(80% 70% at 50% 50%, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(
        80% 70% at 50% 50%,
        #000 30%,
        transparent 80%
    );
    opacity: 0.6;
}
.hero__inner {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding-top: 0;
}
.hero__topline {
    position: relative;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-dim);
}
.hero__status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.hero__status i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.35;
    }
}
.hero__kicker {
    font-size: clamp(0.7rem, 1.5vw, 0.82rem);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
}
.hero__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3.5rem, 13vw, 11rem);
    line-height: 0.92;
    letter-spacing: -0.045em;
    font-variation-settings: "opsz" 96;
}
.hero__word {
    display: block;
}
.hero__word--accent {
    color: var(--accent);
}
.hero__title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(120%) rotate(8deg);
    transition:
        opacity 0.9s var(--ease-out),
        transform 0.9s var(--ease-out);
}
.hero.is-in .hero__title .char {
    opacity: 1;
    transform: translateY(0) rotate(0);
}
.hero__title .char {
    transition-delay: calc(var(--i) * 0.05s + 0.2s);
}
.hero__sub {
    max-width: 38rem;
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    color: var(--ink-dim);
    margin: 2rem 0 2.5rem;
    line-height: 1.55;
}
.hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}
.hero__scroll {
    position: absolute;
    bottom: 2.5rem;
    left: var(--pad);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-dim);
    z-index: 3;
}
.hero__scroll-line {
    position: relative;
    width: 60px;
    height: 1px;
    background: var(--line-strong);
    overflow: hidden;
}
.hero__scroll-line i {
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform-origin: left;
    animation: scrollLine 2.2s var(--ease-soft) infinite;
}
@keyframes scrollLine {
    0% {
        transform: scaleX(0);
        transform-origin: left;
    }
    50% {
        transform: scaleX(1);
        transform-origin: left;
    }
    51% {
        transform: scaleX(1);
        transform-origin: right;
    }
    100% {
        transform: scaleX(0);
        transform-origin: right;
    }
}

/* marquee */
.marquee {
    position: relative;
    z-index: 2;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
    padding: 1.2rem 0;
    background: var(--bg-soft);
}
.marquee__track {
    display: flex;
    align-items: center;
    gap: 2rem;
    width: max-content;
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.4vw, 2rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    animation: marquee 32s linear infinite;
}
.marquee:hover .marquee__track {
    animation-play-state: paused;
}
.marquee__item:nth-child(even) {
    color: var(--ink-dim);
}
.marquee__dot {
    color: var(--accent);
}
@keyframes marquee {
    to {
        transform: translateX(-50%);
    }
}

/* about */
.about__grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(2rem, 6vw, 6rem);
    align-items: center;
}
.about__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
}
.about__title em {
    font-style: italic;
    font-weight: 500;
    color: var(--accent);
}
.about__body {
    display: grid;
    gap: 1.2rem;
    max-width: 40rem;
}
.about__body p {
    color: var(--ink-dim);
    font-size: clamp(0.98rem, 1.3vw, 1.12rem);
    line-height: 1.6;
}
.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2.8rem;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
}
.stat {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    column-gap: 0;
    row-gap: 0.3rem;
    will-change: transform;
}
.stat__num {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    line-height: 1;
    color: var(--ink);
}
.stat__plus {
    color: var(--accent);
    display: inline;
}
.stat__label {
    flex-basis: 100%;
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-dim);
}
.about__visual {
    position: relative;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
}
.about__core {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
.about__ring {
    position: absolute;
    bottom: 6%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.62rem;
    letter-spacing: 0.25em;
    color: var(--ink-dim);
    padding: 0.4rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(10, 11, 13, 0.6);
}
.about__crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0.3;
}
.about__crosshair::before,
.about__crosshair::after {
    content: "";
    position: absolute;
    background: var(--accent);
}
.about__crosshair::before {
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    transform: translateY(-50%);
}
.about__crosshair::after {
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    transform: translateX(-50%);
}
@media (max-width: 880px) {
    .about__grid {
        grid-template-columns: 1fr;
    }
    .about__visual {
        max-width: 360px;
        margin: 0 auto;
        order: -1;
    }
    .about__stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.8rem;
    }
}

/* skills */
.skills__grid {
    display: grid;
    grid-template-columns: 0.8fr 1.5fr;
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
}
.skills__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.8rem, 4vw, 3rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.4rem;
}
.skills__lead {
    color: var(--ink-dim);
    font-size: 1.05rem;
    max-width: 26rem;
}
.skills__groups {
    display: grid;
    gap: 1.8rem;
}
.skill-group {
    padding-bottom: 1.8rem;
    border-bottom: 1px solid var(--line);
}
.skill-group:last-child {
    border-bottom: 0;
}
.skill-group__title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--ink-dim);
    margin-bottom: 1.1rem;
}
.skill-group__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}
.chip {
    position: relative;
    font-size: 0.88rem;
    padding: 0.55rem 1rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    color: var(--ink);
    background: var(--bg-soft);
    transition:
        border-color 0.3s,
        color 0.3s,
        background 0.3s,
        box-shadow 0.3s;
    will-change: transform;
}
.chip em {
    font-style: normal;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--accent);
    margin-left: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.chip:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(198, 242, 78, 0.05);
    box-shadow: 0 4px 20px rgba(198, 242, 78, 0.1);
}
@media (max-width: 880px) {
    .skills__grid {
        grid-template-columns: 1fr;
    }
}

/* experience */
.experience__grid {
    display: grid;
    grid-template-columns: 0.9fr 1.4fr;
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
}
.experience__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.8rem, 4vw, 3rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.4rem;
}
.experience__intro p {
    color: var(--ink-dim);
    font-size: 1.05rem;
    max-width: 26rem;
}
.experience__list {
    display: grid;
    gap: 1.5rem;
}
.exp {
    position: relative;
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 2rem;
    padding: 2rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: linear-gradient(180deg, var(--bg-elev), var(--bg-soft));
    transition:
        border-color 0.4s,
        transform 0.4s;
    will-change: transform;
}
.exp:hover {
    border-color: var(--line-strong);
}
.exp__meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.exp__date {
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.08em;
}
.exp__type {
    font-size: 0.66rem;
    color: var(--ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}
.exp__role {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    letter-spacing: -0.02em;
    margin-bottom: 0.4rem;
}
.exp__org {
    font-size: 0.78rem;
    color: var(--ink-dim);
    letter-spacing: 0.05em;
}
.exp__list-items {
    margin-top: 1.2rem;
    display: grid;
    gap: 0.8rem;
}
.exp__list-items li {
    position: relative;
    padding-left: 1.4rem;
    color: var(--ink-dim);
    font-size: 0.96rem;
    line-height: 1.55;
}
.exp__list-items li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 8px;
    height: 1px;
    background: var(--accent);
}
@media (max-width: 760px) {
    .experience__grid {
        grid-template-columns: 1fr;
    }
    .exp {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }
}

/* projects */
.projects__intro {
    margin-bottom: clamp(2.5rem, 6vh, 4rem);
}
.projects__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.4rem, 6vw, 5rem);
    line-height: 1;
    letter-spacing: -0.035em;
    margin-bottom: 1rem;
}
.projects__lead {
    color: var(--ink-dim);
    font-size: 1.1rem;
}
.projects__lead .hint {
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}
.projects__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
}
.project {
    position: relative;
    transform-style: preserve-3d;
    perspective: 1000px;
}
.project__inner {
    position: relative;
    height: 100%;
    padding: 2rem;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: linear-gradient(180deg, var(--bg-elev), var(--bg-soft));
    transform-style: preserve-3d;
    transition:
        border-color 0.4s,
        box-shadow 0.4s;
}
.project__inner::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 20px;
    background: radial-gradient(
        60% 60% at var(--mx, 50%) var(--my, 0%),
        rgba(198, 242, 78, 0.08),
        transparent 60%
    );
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}
.project:hover .project__inner {
    border-color: var(--line-strong);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.5);
}
.project:hover .project__inner::before {
    opacity: 1;
}
.project--wide {
    grid-column: 1 / -1;
}
.project__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.6rem;
    transform: translateZ(40px);
}
.project__idx {
    font-size: 0.8rem;
    color: var(--accent);
}
.project__cat {
    font-size: 0.66rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-faint);
}
.project__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.3rem, 2.2vw, 1.8rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    transform: translateZ(30px);
}
.project__desc {
    color: var(--ink-dim);
    font-size: 1rem;
    line-height: 1.55;
    margin-bottom: 1.2rem;
    transform: translateZ(20px);
}
.project__bullets {
    display: grid;
    gap: 0.7rem;
    margin-bottom: 1.5rem;
    transform: translateZ(15px);
}
.project__bullets li {
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.88rem;
    color: var(--ink-faint);
    line-height: 1.5;
}
.project__bullets li::before {
    content: "→";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent);
    font-size: 0.8rem;
}
.project__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    transform: translateZ(10px);
}
.project__tags span {
    font-size: 0.62rem;
    letter-spacing: 0.04em;
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--ink-dim);
}
.project__links {
    display: flex;
    gap: 0.6rem;
    margin-top: 1rem;
    transform: translateZ(10px);
}
.project__link {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 0.4rem 0.9rem;
    border: 1px solid var(--accent);
    border-radius: 999px;
    transition:
        background 0.3s,
        color 0.3s;
}
.project__link:hover {
    background: var(--accent);
    color: #0a0b0d;
}
@media (max-width: 760px) {
    .projects__grid {
        grid-template-columns: 1fr;
    }
}

/* certifications */
.certs__intro {
    margin-bottom: clamp(2.5rem, 6vh, 4rem);
}
.certs__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}
.certs__intro p {
    color: var(--ink-dim);
    font-size: 1.05rem;
}
.certs__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}
.cert {
    transform-style: preserve-3d;
    perspective: 1000px;
}
.cert__inner {
    position: relative;
    height: 100%;
    display: flex;
    gap: 1.4rem;
    align-items: flex-start;
    padding: 2rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: linear-gradient(180deg, var(--bg-elev), var(--bg-soft));
    transition:
        border-color 0.4s,
        transform 0.4s;
    transform-style: preserve-3d;
}
.cert:hover .cert__inner {
    border-color: var(--accent);
}
.cert__seal {
    color: var(--accent);
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    transform: translateZ(30px);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}
.cert__date {
    font-size: 0.68rem;
    color: var(--ink-dim);
    letter-spacing: 0.1em;
}
.cert__name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    margin: 0.3rem 0;
    transform: translateZ(20px);
}
.cert__org {
    font-size: 0.74rem;
    color: var(--ink-dim);
}
@media (max-width: 820px) {
    .certs__grid {
        grid-template-columns: 1fr;
    }
}

/* contact */
.contact {
    position: relative;
    overflow: hidden;
}
.contact__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}
.contact__glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(198, 242, 78, 0.12),
        transparent 60%
    );
    transform: translate(-50%, -50%);
    left: 50%;
    top: 50%;
    pointer-events: none;
    transition:
        left 0.3s var(--ease-out),
        top 0.3s var(--ease-out);
}
.contact__inner {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem 0;
}
.contact__kicker {
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
}
.contact__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.4rem, 7vw, 5.5rem);
    line-height: 1;
    letter-spacing: -0.035em;
    display: grid;
    gap: 0.2rem;
    justify-items: center;
    margin-bottom: 2.5rem;
}
.contact__title-accent {
    color: var(--accent);
}
.contact__email {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.1rem, 2.6vw, 1.8rem);
    letter-spacing: -0.02em;
    padding: 0.8rem 1.4rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    transition:
        border-color 0.3s,
        background 0.3s,
        color 0.3s;
    will-change: transform;
}
.contact__email:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(198, 242, 78, 0.05);
}
.contact__email svg {
    transition: transform 0.3s var(--ease-out);
}
.contact__email:hover svg {
    transform: translateX(4px);
}
.contact__links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}
.contact__link {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    align-items: center;
    padding: 1.2rem 1.6rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    min-width: 160px;
    transition:
        border-color 0.3s,
        background 0.3s;
    will-change: transform;
}
.contact__link:hover {
    border-color: var(--accent);
    background: rgba(198, 242, 78, 0.04);
}
.contact__link-label {
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
}
.contact__link-value {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1rem;
    color: var(--ink);
}

/* footer */
.footer {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    padding: 3rem var(--pad);
    margin-top: 4rem;
    border-top: 1px solid var(--line);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-faint);
}
.footer__top {
    color: var(--ink-dim);
    transition: color 0.3s;
}
.footer__top:hover {
    color: var(--accent);
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .grain {
        display: none;
    }
    .reveal-line,
    .reveal-up,
    .reveal-text {
        opacity: 1;
        transform: none;
        filter: none;
    }
}