/* ==========================================================================
   Adam Hurwitz — Homepage (haoqi-inspired redesign)
   Light/dark theme, blue + amber accents, editorial + mono typography
   ========================================================================== */

:root {
    /* Brand accents (from prior site) */
    --blue: #7B8CDE;
    --amber: #E0A44A;

    /* Type */
    --font-display: 'Lora', Georgia, serif;
    --font-hero: 'Fredoka', 'Trebuchet MS', sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

    /* Motion */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);

    /* Layout */
    --page-pad: clamp(1.25rem, 4vw, 4rem);
    --maxw: 1400px;
}

/* ----- Dark theme (default) ----- */
:root,
[data-theme="dark"] {
    --bg: #17191d;
    --bg-elev: #1e2126;
    --fg: #f2ede2;
    --fg-dim: rgba(242, 237, 226, 0.62);
    --fg-faint: rgba(242, 237, 226, 0.34);
    --line: rgba(242, 237, 226, 0.14);
    --line-strong: rgba(242, 237, 226, 0.28);
    --surface: rgba(255, 255, 255, 0.03);
    --surface-hover: rgba(123, 140, 222, 0.12);
    --mark-blue-bg: rgba(123, 140, 222, 0.22);
    --mark-amber-bg: rgba(224, 164, 74, 0.2);
    --shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.8);
}

/* ----- Light theme ----- */
[data-theme="light"] {
    --bg: #f4f1ea;
    --bg-elev: #fbf9f4;
    --fg: #1c1f24;
    --fg-dim: rgba(28, 31, 36, 0.66);
    --fg-faint: rgba(28, 31, 36, 0.4);
    --line: rgba(28, 31, 36, 0.14);
    --line-strong: rgba(28, 31, 36, 0.26);
    --surface: rgba(28, 31, 36, 0.02);
    --surface-hover: rgba(123, 140, 222, 0.12);
    --mark-blue-bg: rgba(123, 140, 222, 0.28);
    --mark-amber-bg: rgba(224, 164, 74, 0.32);
    --shadow: 0 30px 80px -45px rgba(28, 31, 36, 0.4);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 5.5rem;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.55;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background 0.5s var(--ease), color 0.5s var(--ease);
}

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

.mono {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-dim);
}

/* Highlighted words */
.mk {
    background: transparent;
    color: inherit;
    padding: 0 0.12em;
    border-radius: 3px;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}
.mk--blue { background: var(--mark-blue-bg); }
.mk--amber { background: var(--mark-amber-bg); }

/* ==========================================================================
   Top bar
   ========================================================================== */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem var(--page-pad);
    background: color-mix(in srgb, var(--bg) 78%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transition: background 0.5s var(--ease), border-color 0.5s var(--ease), transform 0.4s var(--ease);
}
.topbar.is-scrolled {
    border-bottom-color: var(--line-strong);
    box-shadow: 0 10px 30px -20px rgba(0, 0, 0, 0.5);
}

.topbar__brand-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 0.01em;
}
.topbar__brand-mark { display: none; }

.topbar__nav {
    display: flex;
    gap: 1.6rem;
}
.topbar__nav a {
    position: relative;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--fg-dim);
    transition: color 0.25s var(--ease);
}
.topbar__nav a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -4px;
    width: 100%; height: 1.5px;
    background: var(--blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease);
}
.topbar__nav a:hover { color: var(--fg); }
.topbar__nav a:hover::after { transform: scaleX(1); }

.topbar__meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.clock {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    color: var(--fg-dim);
    font-variant-numeric: tabular-nums;
}
.clock__zone { color: var(--amber); }

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: var(--fg-dim);
    background: transparent;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    padding: 0.4rem 0.75rem;
    cursor: pointer;
    transition: all 0.25s var(--ease);
}
.theme-toggle:hover {
    color: var(--fg);
    border-color: var(--blue);
    background: var(--surface-hover);
}
.theme-toggle__state { color: var(--amber); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 7rem var(--page-pad) 3rem;
    position: relative;
}
.hero__grid {
    max-width: var(--maxw);
    width: 100%;
    margin: 0 auto;
}
.hero__ticker {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--line);
}
.hero__title {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 0.98;
    letter-spacing: -0.015em;
    margin-bottom: 1.75rem;
}
.hero__line { display: block; }
.hero__line--name {
    font-family: var(--font-hero);
    font-weight: 600;
    font-size: clamp(3rem, 11vw, 9.5rem);
    letter-spacing: -0.02em;
    color: var(--blue);
    position: relative;
}

.hero__logo-stage {
    display: inline-block;
    height: 0.78em;
    width: calc(0.78em * 1.14);
    vertical-align: baseline;
    margin-left: clamp(0.18rem, 0.7vw, 0.5rem);
}

/* Floating triangle field */
.tri-field {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.tri-field__canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}
[data-theme="light"] .tri-field__canvas {
    filter: none;
}

main,
.footer {
    position: relative;
    z-index: 1;
}

.hero-liquid {
    display: inline-block;
    position: relative;
    vertical-align: baseline;
    cursor: default;
}
.hero-liquid__src {
    visibility: hidden;
}
.hero-liquid__canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
}

.hero-liquid--chars {
    overflow: hidden;
}
.hero-char {
    display: inline-block;
    transform: translateY(110%) rotate(6deg);
    opacity: 0;
    transition: none;
    will-change: transform, opacity;
    cursor: default;
}
.hero-char.is-revealed {
    opacity: 1;
    transform: translateY(0) rotate(0);
    transition: transform 0.9s var(--ease), opacity 0.7s var(--ease);
}
.hero-char.is-space {
    width: 0.35em;
}
.hero__line--role {
    font-size: clamp(1.6rem, 5.5vw, 4.25rem);
    font-style: italic;
    color: var(--fg-dim);
}
.typewriter { color: var(--fg); }
.typewriter .tw-accent { color: var(--blue); }
#typewriter-container .cursor { color: var(--amber); font-style: normal; }

.hero__tagline {
    max-width: 46ch;
    font-size: clamp(1rem, 1.6vw, 1.4rem);
    line-height: 1.55;
    color: var(--fg-dim);
    margin-bottom: 2.5rem;
}
.hero__tagline mark { color: var(--fg); }

.hero__actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.9rem 1.5rem;
    border-radius: 999px;
    border: 1.5px solid var(--line-strong);
    cursor: pointer;
    transition: all 0.3s var(--ease);
}
.btn--primary {
    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
}
.btn--primary:hover {
    background: var(--amber);
    border-color: var(--amber);
    color: #1c1f24;
    transform: translateY(-2px);
}
.btn--primary i { transition: transform 0.3s var(--ease); }
.btn--primary:hover i { transform: translateY(3px); }

.social-links {
    display: flex;
    gap: 0.6rem;
}
.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px; height: 46px;
    border-radius: 50%;
    border: 1.5px solid var(--line-strong);
    color: var(--fg-dim);
    font-size: 1.1rem;
    transition: all 0.25s var(--ease);
}
.social-icon:hover {
    color: var(--fg);
    border-color: var(--blue);
    background: var(--surface-hover);
    transform: translateY(-2px);
}

.hero__scroll {
    position: absolute;
    left: var(--page-pad);
    bottom: 1.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.hero__scroll-line {
    display: block;
    width: 60px; height: 1px;
    background: var(--line-strong);
    position: relative;
    overflow: hidden;
}
.hero__scroll-line::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--blue);
    transform: translateX(-100%);
    animation: scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(0); }
    100% { transform: translateX(100%); }
}

/* ==========================================================================
   Marquee
   ========================================================================== */
.marquee {
    overflow: hidden;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 1.1rem 0;
    white-space: nowrap;
}
.marquee__track {
    display: inline-flex;
    align-items: center;
    gap: 2rem;
    animation: marquee 28s linear infinite;
}
.marquee__track span {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.3rem, 3vw, 2.4rem);
    color: var(--fg-dim);
}
.marquee__dot { color: var(--amber) !important; font-style: normal !important; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: clamp(5rem, 12vh, 9rem) var(--page-pad);
}
.section__head { margin-bottom: 3.5rem; }
.section__index {
    display: block;
    margin-bottom: 1rem;
    color: var(--blue);
}
.section__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 4rem);
    letter-spacing: -0.01em;
    line-height: 1.05;
}

/* ----- Work list ----- */
.section--work { position: relative; }
.work-list {
    border-top: 1px solid var(--line);
}
.work-row {
    display: grid;
    grid-template-columns: 3rem 1fr auto 2rem;
    align-items: center;
    gap: 1.5rem;
    padding: 1.75rem 0.5rem;
    border-bottom: 1px solid var(--line);
    position: relative;
    transition: padding 0.35s var(--ease), color 0.35s var(--ease);
}
.work-row::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--surface-hover);
    opacity: 0;
    transition: opacity 0.35s var(--ease);
    z-index: -1;
}
a.work-row:hover {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}
a.work-row:hover::before { opacity: 1; }
.work-row__idx { color: var(--fg-faint); }
.work-row__title {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 2.25rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: color 0.3s var(--ease);
}
a.work-row:hover .work-row__title { color: var(--blue); }
.work-row__tag { color: var(--fg-dim); white-space: nowrap; }
.work-row__year { color: var(--fg-dim); }
.work-row__arrow {
    font-size: 0.95rem;
    color: var(--fg-faint);
    transition: transform 0.3s var(--ease), color 0.3s var(--ease);
    justify-self: end;
}
a.work-row:hover .work-row__arrow {
    color: var(--amber);
    transform: translate(4px, -4px);
}
.work-row--static { color: var(--fg-dim); }
.work-list__note {
    margin-top: 1.75rem;
    max-width: 60ch;
    color: var(--fg-dim);
    font-size: 1rem;
}
.work-list__note mark { color: var(--fg); }

/* Hover-follow thumbnail */
.work-hover {
    position: fixed;
    top: 0; left: 0;
    width: 300px; height: 200px;
    pointer-events: none;
    z-index: 60;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.9);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--line-strong);
}
.work-hover.is-visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}
.work-hover img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ----- Testimonials ----- */
.testimonials-carousel {
    padding-bottom: 1rem;
}
.testimonial {
    max-width: 60ch;
}
.testimonial__text {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.25rem, 2.6vw, 2rem);
    line-height: 1.4;
    color: var(--fg);
    margin-bottom: 2rem;
}
.testimonial__text::before { content: '“'; color: var(--amber); }
.testimonial__text::after { content: '”'; color: var(--amber); }
.testimonial__text.testimonial-text--long {
    font-size: clamp(1.05rem, 1.9vw, 1.4rem);
    line-height: 1.5;
}
.testimonial__author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}
.testimonial__name {
    font-weight: 600;
    font-size: 1.05rem;
}
.testimonial__role { color: var(--fg-dim); }

.testimonials-carousel__controls {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-top: 2.5rem;
}
.testimonials-carousel .swiper-button-next,
.testimonials-carousel .swiper-button-prev {
    position: static;
    width: 44px; height: 44px;
    margin: 0;
    border: 1.5px solid var(--line-strong);
    border-radius: 50%;
    color: var(--fg-dim);
    transition: all 0.25s var(--ease);
}
.testimonials-carousel .swiper-button-next::after,
.testimonials-carousel .swiper-button-prev::after { font-size: 1rem; }
.testimonials-carousel .swiper-button-next:hover,
.testimonials-carousel .swiper-button-prev:hover {
    color: var(--fg);
    border-color: var(--blue);
    background: var(--surface-hover);
}
.testimonials-carousel .swiper-pagination {
    position: static;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: auto;
}
.testimonials-carousel .swiper-pagination-bullet {
    width: 8px; height: 8px;
    background: var(--fg-faint);
    opacity: 1;
    transition: all 0.25s var(--ease);
}
.testimonials-carousel .swiper-pagination-bullet-active {
    background: var(--blue);
    width: 24px;
    border-radius: 4px;
}

/* ----- About ----- */
.about {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
    margin-bottom: 4rem;
}
.about__portraits {
    display: flex;
    gap: 1.25rem;
}
.about__portrait {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    width: 200px;
    aspect-ratio: 3 / 4;
    background: var(--surface);
}
.about__portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
}
.about__body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    font-size: clamp(1.05rem, 1.6vw, 1.35rem);
    line-height: 1.7;
    color: var(--fg-dim);
    max-width: 60ch;
}
.about__body mark { color: var(--fg); }

/* ----- Contact ----- */
.section--contact { text-align: left; }
.contact__headline {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.75rem, 10vw, 8rem);
    line-height: 0.98;
    letter-spacing: -0.02em;
    margin: 1rem 0 2.5rem;
}
.contact__amp { color: var(--blue); }
.contact__email {
    display: inline-block;
    font-family: var(--font-display);
    font-size: clamp(1.35rem, 3.5vw, 2.5rem);
    font-style: italic;
    border-bottom: 2px solid var(--line-strong);
    padding-bottom: 0.15em;
    transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.contact__email:hover { color: var(--amber); border-color: var(--amber); }
.contact__links {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 3rem;
}
.contact__links a {
    font-weight: 500;
    color: var(--fg-dim);
    transition: color 0.25s var(--ease);
}
.contact__links a i { font-size: 0.75rem; margin-left: 0.25rem; }
.contact__links a:hover { color: var(--fg); }

/* ----- Footer ----- */
.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 2rem var(--page-pad);
    border-top: 1px solid var(--line);
}
.footer__top { color: var(--fg-dim); transition: color 0.25s var(--ease); }
.footer__top:hover { color: var(--blue); }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
[data-reveal] {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
    will-change: opacity, transform;
}
[data-reveal].is-in {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; scroll-behavior: auto !important; }
    [data-reveal] { opacity: 1; transform: none; transition: none; }
    .hero__scroll-line::after { display: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
    .topbar__nav { display: none; }
    .about { grid-template-columns: 1fr; }
    .about__portraits { justify-content: center; }
    .about__portrait { width: 160px; }
    .work-row {
        grid-template-columns: 2rem 1fr auto;
        gap: 0.75rem 1rem;
    }
    .work-row__tag { grid-column: 2 / -1; grid-row: 2; }
    .work-row__arrow { display: none; }
    .work-hover { display: none; }
}

@media (max-width: 560px) {
    .topbar__brand-name { display: none; }
    .topbar__brand-mark {
        display: inline-block;
        font-family: var(--font-mono);
        font-weight: 600;
        font-size: 0.95rem;
        letter-spacing: 0.05em;
    }
    .clock { display: none; }
    .hero { padding-top: 6rem; }
    .hero__ticker { gap: 0.75rem 1.25rem; }
    .hero__actions { gap: 1rem; }
    .btn--primary { width: 100%; justify-content: center; }
    .testimonials-carousel__controls { gap: 0.75rem; }
    .about__portrait { width: 130px; }
}