:root {
    --bg: #0a0a09;
    --text: #f5f5f4;
    --text-dim: rgba(245, 245, 244, 0.55);
    --text-faint: rgba(245, 245, 244, 0.35);
    --hairline: rgba(245, 245, 244, 0.1);
    --tag-bg: rgba(245, 245, 244, 0.06);
    --transition: 0.5s cubic-bezier(.2, .8, .2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    --radius-card: 24px;
    --gap: 32px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-weight: 400;
    line-height: 1.4;
    min-height: 100vh;
    overflow-x: hidden;
}

main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 40px 80px;
}

/* Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 80px;
}

.hero {
    padding-bottom: 120px;
}

h1 {
    font-size: clamp(2.25rem, 6vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.05;
    max-width: 14ch;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text);
    text-decoration: none;
    transition: color var(--transition);
}

.brand-mark {
    width: 22px;
    height: 22px;
    border-radius: 22.37%;
    corner-shape: squircle;
    display: block;
}

.brand:hover { color: var(--text-dim); }

.top-nav {
    display: flex;
    gap: 32px;
}

.top-nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    transition: color var(--transition);
}

.top-nav a:hover { color: var(--text); }

/* Work head */
.work-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding-bottom: 32px;
}

.work-title {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.work-range {
    font-size: 0.85rem;
    color: var(--text-faint);
    letter-spacing: 0.04em;
}

/* Grid */
.work-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
    padding-bottom: 120px;
}

/* Card */
.card {
    display: block;
    text-decoration: none;
    color: inherit;
    perspective: 1200px;
}

.card-stage {
    --rx: 0deg;
    --ry: 0deg;
    --mx: 50%;
    --my: 50%;
    --lift: 0px;
    --tile-bg: transparent;
    position: relative;
    /* iOS app icon shape: 22.37% radius + superellipse corners (Apple HIG). */
    border-radius: 22.37%;
    corner-shape: squircle;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--tile-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transform-style: preserve-3d;
    transform:
        translateY(var(--lift))
        rotateX(var(--rx))
        rotateY(var(--ry));
    transition: transform var(--transition), box-shadow var(--transition);
    will-change: transform;
    /* Emboss: edge highlight + outer drop shadow */
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.18),
        inset 0 -1px 0 rgba(0, 0, 0, 0.35),
        0 20px 40px -16px rgba(0, 0, 0, 0.55),
        0 8px 20px -12px rgba(0, 0, 0, 0.45);
}

.card:hover .card-stage {
    --lift: -8px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.22),
        inset 0 -1px 0 rgba(0, 0, 0, 0.4),
        0 36px 60px -20px rgba(0, 0, 0, 0.7),
        0 16px 36px -18px rgba(0, 0, 0, 0.55);
}

/* Static emboss highlight: soft light source from top */
.card-stage::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.16) 0%,
        rgba(255, 255, 255, 0.04) 28%,
        rgba(0, 0, 0, 0) 55%,
        rgba(0, 0, 0, 0.18) 100%
    );
    pointer-events: none;
    z-index: 3;
    mix-blend-mode: overlay;
    opacity: 0.9;
}

/* Pointer-following highlight */
.card-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
        radial-gradient(
            260px circle at var(--mx) var(--my),
            rgba(255, 255, 255, 0.14),
            rgba(255, 255, 255, 0) 60%
        );
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
    z-index: 2;
    mix-blend-mode: screen;
}

.card:hover .card-stage::before,
.card:focus-visible .card-stage::before {
    opacity: 1;
}

.card:focus-visible {
    outline: none;
}

.card:focus-visible .card-stage {
    box-shadow: 0 0 0 2px var(--text);
}

.card-stage img.app-icon {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Match the stage squircle — 3D-transformed children can escape overflow clipping. */
    border-radius: inherit;
    corner-shape: inherit;
    transform: translateZ(20px);
    transition: transform var(--transition);
}

.card:hover .card-stage img.app-icon {
    transform: translateZ(30px) scale(1.02);
}

/* Per-app tile bg — only shown where the icon is transparent */
.tile-shredly  { --tile-bg: #0f172a; }   /* matches Shredly's app theme */
.tile-starbird { --tile-bg: #f5f1e8; }   /* matches Starbird's light theme */
.tile-quizly   { --tile-bg: #5b82b0; }   /* matches Quizly's blue */

/* Caption */
.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 4px 0;
}

.card-name {
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: -0.005em;
    color: var(--text);
}

.card-tag {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    background: var(--tag-bg);
    padding: 5px 10px;
    border-radius: 999px;
}

/* -------- Project detail strip -------- */
.project {
    position: relative;
    scroll-margin-top: 32px;
    padding: 120px 0 160px;
    border-top: 1px solid var(--hairline);
    overflow: hidden;
}

.project-head {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
    padding-bottom: 80px;
}

.project-kicker {
    grid-column: 1;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.project-tagline {
    grid-column: 2;
    grid-row: 1 / span 2;
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.2;
    max-width: 28ch;
    color: var(--text);
}

.project-link {
    grid-column: 1;
    grid-row: 2;
    align-self: start;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color var(--transition);
    padding-top: 12px;
}

.project-link:hover { color: var(--text); }

/* -------- iPhone fan stage -------- */
.iphone-stage {
    position: relative;
    z-index: 1;
    height: 760px;
    perspective: 1800px;
    perspective-origin: 50% 40%;
    --scroll: 0;
}

.iphone {
    --o: 0;
    --spread: 220px;
    --lift: 40px;
    --rot: 9deg;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 340px;
    aspect-ratio: 9 / 19.5;
    margin-left: -170px;
    margin-top: -368px;
    border-radius: 44px;
    overflow: hidden;
    background: #111;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.04) inset,
        0 30px 60px -20px rgba(0, 0, 0, 0.6),
        0 10px 30px -10px rgba(0, 0, 0, 0.5);
    transform-style: preserve-3d;
    transform-origin: 50% 60%;
    transition: transform 0.7s cubic-bezier(.2, .8, .2, 1),
                opacity 0.7s cubic-bezier(.2, .8, .2, 1);
    opacity: 0;
    transform:
        translate3d(0, 80px, -200px)
        rotateY(calc(var(--o) * -1deg))
        scale(0.95);
}

.iphone img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
}

/* Thin border highlight so screenshots read as a "device" */
.iphone::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
    pointer-events: none;
}

/* Fanned-out resting state */
.project.is-visible .iphone {
    opacity: 1;
    transform:
        translate3d(
            calc(var(--o) * var(--spread)),
            calc(var(--abs) * var(--lift) * 0.6 + var(--scroll) * -40px),
            calc(var(--abs) * -120px)
        )
        rotateY(calc(var(--o) * var(--rot) * -1))
        rotateX(calc(var(--scroll) * 6deg));
    transition-delay: calc(var(--abs) * 90ms);
}

/* Hover pops a single phone forward */
.iphone-stage:hover .iphone { filter: saturate(0.8) brightness(0.75); }
.iphone-stage .iphone:hover {
    filter: none;
    transform:
        translate3d(calc(var(--o) * var(--spread)), -20px, 120px)
        rotateY(0)
        scale(1.04);
    z-index: 5;
}

/* Footer */
.site-footer {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    font-size: 0.8rem;
    color: var(--text-faint);
    letter-spacing: 0.02em;
}

/* -------- Starfield (twinkling background) -------- */
.starfield {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.starfield .star-wrap {
    position: absolute;
    transform:
        translate(-50%, -50%)
        translate(var(--px, 0px), var(--py, 0px))
        scale(var(--swell, 1));
    transition: transform 260ms cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
}

.starfield .star {
    display: block;
    color: rgba(245, 245, 244, 0.35);
    font-family: 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
    line-height: 1;
    animation: twinkle 9s ease-in-out infinite;
    will-change: opacity, transform;
    user-select: none;
}

@keyframes twinkle {
    0%, 100% { opacity: 0; transform: scale(0.6); }
    50%      { opacity: 0.55; transform: scale(1); }
}

/* -------- ASCII gravity rain -------- */
.ascii-rain {
    position: fixed;
    inset: 0;
    /* Behind main so foreground images/cards always visually dominate.
       Poem trigger is wired at document level; phones don't need pointer events. */
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.ascii-phone {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    text-decoration: none;
    transform-origin: 50% 50%;
    will-change: transform;
}

.ascii-phone pre {
    margin: 0;
    font-family: 'SF Mono', 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
    font-size: 11px;
    line-height: 11px;
    letter-spacing: 0;
    color: rgba(245, 245, 244, 0.18);
    white-space: pre;
    user-select: none;
    transition: color 0.6s ease;
    /* Match the squircle of the real app icons in Selected Work. */
    border-radius: 22.37%;
    corner-shape: squircle;
    overflow: hidden;
}

.ascii-phone:hover pre {
    color: rgba(245, 245, 244, 0.95);
}

/* -------- Poem overlay -------- */
.poem-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0);
    opacity: 0;
    transition: background 2.8s ease, opacity 2.8s ease;
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    cursor: pointer;
}

.poem-overlay.is-open {
    background: rgba(0, 0, 0, 0.985);
    opacity: 1;
}

.poem-overlay.is-closing {
    background: rgba(0, 0, 0, 0);
    opacity: 0;
    transition: background 1.2s ease, opacity 1.2s ease;
}

.poem-inner {
    max-width: 640px;
    padding: 18vh 32px 18vh;
    color: rgba(245, 245, 244, 0.92);
    font-family: var(--font);
    font-size: 1.05rem;
    line-height: 1.75;
    letter-spacing: -0.005em;
}

.poem-inner p { margin-bottom: 1.6rem; }

.poem-first {
    font-size: 1.5rem;
    line-height: 1.5;
    letter-spacing: -0.015em;
    margin-bottom: 2.4rem;
    font-weight: 500;
}

.poem-word,
.poem-line {
    opacity: 0;
    animation: poem-word-in 1.2s ease forwards;
    will-change: opacity;
}

.poem-mobile-break { display: none; }

.poem-word.shown,
.poem-line.shown {
    opacity: 1;
    animation: none;
}

@keyframes poem-word-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* -------- Mouse ripple rings -------- */
.ripple-layer {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.ripple {
    position: absolute;
    width: 0;
    height: 0;
    border-radius: 50%;
    border: 1px solid rgba(245, 245, 244, 0.5);
    transform: translate(-50%, -50%);
    animation: ripple-grow 1.1s ease-out forwards;
    will-change: width, height, opacity;
    mix-blend-mode: screen;
}

@keyframes ripple-grow {
    0%   { width: 0;     height: 0;     opacity: 0.4;  border-width: 2px; }
    60%  { opacity: 0.15; border-width: 1px; }
    100% { width: 620px; height: 620px; opacity: 0;    border-width: 1px; }
}

/* Tiny hint of light at the cursor — the gravity-pushed stars do the heavy lifting. */
.spotlight {
    position: fixed;
    top: 0; left: 0;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: radial-gradient(circle,
        rgba(245, 245, 244, 0.04) 0%,
        rgba(245, 245, 244, 0.015) 50%,
        rgba(245, 245, 244, 0) 75%);
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    mix-blend-mode: screen;
    will-change: transform;
}

/* Put real content above the ambient layers */
main { position: relative; z-index: 1; }
.back-to-top { z-index: 50; }

/* Back to top */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(20, 20, 19, 0.72);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--hairline);
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition), color var(--transition);
    z-index: 50;
}

.back-to-top.is-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-top:hover { color: var(--text); }

/* Tablet */
@media (min-width: 721px) and (max-width: 1024px) {
    .iphone { width: 260px; margin-left: -130px; margin-top: -282px; }
    .iphone { --spread: 170px; }
    .iphone-stage { height: 640px; }
}

/* Mobile */
@media (max-width: 720px) {
    main { padding: 20px 20px 60px; }
    .site-header { padding-bottom: 56px; }
    .hero { padding-bottom: 72px; }
    .top-nav { gap: 20px; }
    .work-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        padding-bottom: 80px;
    }
    .card-stage { aspect-ratio: 1 / 1; }
    /* iOS home-screen caption: name centered under icon, tag as subtle caption. */
    .card-meta {
        flex-direction: column;
        align-items: center;
        gap: 3px;
        padding: 10px 0 0;
        text-align: center;
    }
    .card-name {
        font-size: 0.85rem;
        line-height: 1.2;
    }
    .card-tag {
        background: transparent;
        padding: 0;
        font-size: 0.58rem;
        letter-spacing: 0.12em;
        color: var(--text-faint);
    }

    .project { padding: 72px 0 96px; }
    .project-head {
        grid-template-columns: 1fr;
        padding-bottom: 40px;
    }
    .project-tagline { grid-column: 1; grid-row: auto; }
    .project-link { grid-column: 1; padding-top: 8px; }

    .iphone-stage { height: 560px; perspective: 1100px; }
    .iphone {
        width: 210px;
        margin-left: -105px;
        margin-top: -228px;
        --spread: 90px;
        --rot: 6deg;
    }
    .back-to-top { right: 16px; bottom: 16px; }

    .poem-mobile-break { display: inline; }

    /* Smaller ASCII rain so it stays ambient on narrow screens / PWA. */
    .ascii-phone pre {
        font-size: 6px;
        line-height: 6px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    .card:hover .card-stage { transform: none; }
    html { scroll-behavior: auto; }
}