/* ============================================================
   MC — Product Manager Portfolio
   Aesthetic: editorial ivory — warm paper, ink, clay accent,
   hairline rules, expressive serif display, mono metadata.
   ============================================================ */

:root {
  --paper: #f6f3ed;
  --paper-deep: #efeae1;
  --ink: #1c1914;
  --ink-soft: #5d574c;
  --ink-faint: #8a8375;
  --line: rgba(28, 25, 20, 0.14);
  --line-strong: rgba(28, 25, 20, 0.32);
  --accent: #a44a24;
  --accent-deep: #8a3d1d;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Instrument Sans", -apple-system, sans-serif;
  --font-mono: "Spline Sans Mono", ui-monospace, monospace;

  --ease-out: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-swift: cubic-bezier(0.65, 0, 0.35, 1);

  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --section-gap: clamp(6rem, 12vw, 10rem);
  --max-w: 1280px;
}

/* ---------- Reset & base ---------- */

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

html {
  scroll-padding-top: 6.5rem;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* paper grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection {
  background: var(--accent);
  color: var(--paper);
}

img,
svg {
  max-width: 100%;
  display: block;
}

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

ul {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.7em;
  border-radius: 100px;
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1;
  transition: background-color 0.35s var(--ease-swift),
    color 0.35s var(--ease-swift), border-color 0.35s var(--ease-swift),
    transform 0.35s var(--ease-swift);
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
}

.btn--primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.btn--primary span {
  transition: transform 0.35s var(--ease-swift);
}

.btn--primary:hover span {
  transform: translateX(4px);
}

.btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- Navigation ---------- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

.site-nav.is-scrolled {
  background: rgba(246, 243, 237, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 4.75rem;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  transition: height 0.4s var(--ease-swift);
}

.site-nav.is-scrolled .nav-inner {
  height: 3.75rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.brand sup {
  font-size: 0.55em;
  color: var(--accent);
  margin-left: 0.1em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  margin-left: auto;
}

.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35em;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-swift);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--ink);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  font-size: 0.85rem;
  padding: 0.7em 1.4em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 1.5px;
  background: var(--ink);
  margin: 0 auto;
  transition: transform 0.35s var(--ease-swift), opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* ---------- Mobile menu ---------- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-link {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 9vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  padding: 0.35em 0;
  border-bottom: 1px solid var(--line);
  transform: translateY(24px);
  opacity: 0;
  transition: transform 0.6s var(--ease-out), opacity 0.6s ease,
    color 0.3s ease;
}

.mobile-link:hover {
  color: var(--accent);
}

.mobile-link .mono {
  color: var(--accent);
}

.mobile-menu.is-open .mobile-link {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu.is-open .mobile-link:nth-child(1) { transition-delay: 0.08s; }
.mobile-menu.is-open .mobile-link:nth-child(2) { transition-delay: 0.16s; }
.mobile-menu.is-open .mobile-link:nth-child(3) { transition-delay: 0.24s; }
.mobile-menu.is-open .mobile-link:nth-child(4) { transition-delay: 0.32s; }

.mobile-menu-foot {
  margin-top: 3rem;
  color: var(--ink-faint);
}

/* ---------- Layout shells ---------- */

.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--section-gap) var(--gutter) 0;
}

.section-head {
  border-top: 1px solid var(--line-strong);
  padding-top: 1.5rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-eyebrow {
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(9rem, 18vh, 13rem) var(--gutter) 0;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
}

.hero-rules {
  position: absolute;
  inset: 0 var(--gutter);
  display: none;
  justify-content: space-evenly;
  pointer-events: none;
}

.hero-rules i {
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 20%, var(--line) 80%, transparent);
}

@media (min-width: 1024px) {
  .hero-rules {
    display: flex;
  }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  color: var(--ink-soft);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(164, 74, 36, 0.35); }
  50% { box-shadow: 0 0 0 7px rgba(164, 74, 36, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.9rem, 8.2vw, 6.75rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.hero-title .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.08em;
  margin-bottom: -0.08em;
}

.hero-title .line > span {
  display: block;
}

.hero-foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
  margin-top: auto;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.hero-sub {
  max-width: 34rem;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.65;
  color: var(--ink-soft);
}

.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink-soft);
  white-space: nowrap;
  transition: color 0.3s ease;
}

.scroll-cue:hover {
  color: var(--accent);
}

.cue-arrow {
  display: inline-block;
  animation: bob 2s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-strong);
}

.stat {
  padding: 1.75rem 0 3rem;
  border-left: 1px solid var(--line);
  padding-left: 1.75rem;
}

.stat:first-child {
  border-left: none;
  padding-left: 0;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.stat-label {
  color: var(--ink-faint);
}

/* ---------- Hero load animation ---------- */

@media (prefers-reduced-motion: no-preference) {
  .anim {
    opacity: 0;
    transform: translateY(18px);
    animation: fade-up 0.9s var(--ease-out) forwards;
  }

  .anim-1 { animation-delay: 0.15s; }
  .anim-4 { animation-delay: 0.75s; }
  .anim-5 { animation-delay: 0.9s; }

  .hero-title .line > span {
    transform: translateY(112%);
    animation: rise 1s var(--ease-out) forwards;
  }

  .anim-line-1 > span { animation-delay: 0.25s; }
  .anim-line-2 > span { animation-delay: 0.37s; }
  .anim-line-3 > span { animation-delay: 0.49s; }
}

@keyframes fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rise {
  to {
    transform: translateY(0);
  }
}

/* ---------- Marquee ---------- */

.marquee {
  margin-top: var(--section-gap);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.1rem 0;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: scroll-x 46s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  white-space: nowrap;
}

@keyframes scroll-x {
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track {
    animation: none;
  }
}

/* ---------- Work / case list ---------- */

.case-list {
  border-bottom: 1px solid var(--line);
}

.case {
  position: relative;
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) 15rem 3rem;
  align-items: center;
  gap: 2rem;
  padding: clamp(2rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--line);
  transition: padding 0.45s var(--ease-swift);
}

.case::before {
  content: "";
  position: absolute;
  inset: 0 calc(var(--gutter) * -0.5);
  background: var(--paper-deep);
  opacity: 0;
  transition: opacity 0.45s ease;
  pointer-events: none;
}

.case:hover::before {
  opacity: 0.65;
}

.case > * {
  position: relative;
}

.case-index {
  color: var(--accent);
  font-size: 0.85rem;
  align-self: start;
  padding-top: 0.5rem;
}

.case-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 0.7rem;
  transition: color 0.3s ease;
}

.case:hover .case-title {
  color: var(--accent-deep);
}

.case-desc {
  color: var(--ink-soft);
  max-width: 36rem;
  font-size: 0.98rem;
  margin-bottom: 1.1rem;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.case-tags li {
  padding: 0.3em 0.85em;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--ink-faint);
  font-size: 0.68rem;
}

.case-metric {
  text-align: right;
}

.metric-value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
  transition: color 0.3s ease;
}

.metric-value small {
  font-size: 0.5em;
  vertical-align: 0.5em;
  margin-left: 0.05em;
}

.case:hover .metric-value {
  color: var(--accent);
}

.metric-label {
  display: block;
  margin-top: 0.5rem;
  color: var(--ink-faint);
}

.case-arrow {
  font-size: 1.4rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.35s ease, transform 0.35s var(--ease-swift);
}

.case:hover .case-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}

.about-visual {
  position: relative;
  position: sticky;
  top: 7rem;
}

.portrait {
  aspect-ratio: 4 / 5;
  border-radius: 999px 999px 0 0;
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(164, 74, 36, 0.28), transparent 55%),
    radial-gradient(110% 110% at 85% 90%, rgba(28, 25, 20, 0.22), transparent 60%),
    linear-gradient(165deg, var(--paper-deep), #e2d9c9);
  border: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
}

.portrait-monogram {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(6rem, 12vw, 10rem);
  line-height: 0.8;
  color: var(--ink);
  opacity: 0.85;
  transform: translateY(12%);
}

.orbit-badge {
  position: absolute;
  right: -2.25rem;
  top: -2.25rem;
  width: clamp(7rem, 11vw, 9rem);
  aspect-ratio: 1;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.orbit-badge svg {
  width: 88%;
  height: 88%;
  animation: spin 22s linear infinite;
}

.orbit-badge text {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  fill: var(--accent);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-badge svg {
    animation: none;
  }
}

.about-lede {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: 1.75rem;
}

.about-body {
  color: var(--ink-soft);
  max-width: 38rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.principles li {
  display: flex;
  gap: 1.75rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}

.principle-index {
  color: var(--accent);
  padding-top: 0.3rem;
  flex-shrink: 0;
}

.principles h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
}

.principles p {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Skills ---------- */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.skill-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  transition: border-color 0.4s ease, background-color 0.4s ease,
    transform 0.4s var(--ease-swift);
}

.skill-card:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.45);
  transform: translateY(-4px);
}

.skill-index {
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  color: var(--accent);
  font-size: 0.85rem;
}

.skill-card h3 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.8rem;
  max-width: 85%;
}

.skill-card p {
  color: var(--ink-soft);
  font-size: 0.96rem;
  margin-bottom: 1.5rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tags li {
  padding: 0.35em 0.9em;
  background: var(--paper-deep);
  border-radius: 100px;
  color: var(--ink-soft);
  font-size: 0.68rem;
}

.toolbelt {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.toolbelt-label {
  color: var(--ink-faint);
  flex-shrink: 0;
}

.toolbelt-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.6rem;
}

.toolbelt-list li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
}

.toolbelt-list li:not(:last-child)::after {
  content: "·";
  position: absolute;
  right: -1rem;
  color: var(--line-strong);
}

/* ---------- Contact ---------- */

.section--contact {
  text-align: center;
  padding-bottom: var(--section-gap);
}

.section--contact .section-eyebrow {
  margin-bottom: 2rem;
}

.contact-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.contact-sub {
  max-width: 30rem;
  margin: 0 auto 3rem;
  color: var(--ink-soft);
}

.contact-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-actions .btn--primary {
  font-size: 1.05rem;
  padding: 1em 2em;
}

.copy-chip {
  padding: 0.9em 1.6em;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  color: var(--ink-soft);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.copy-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.copy-chip.is-copied {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line-strong);
  margin-top: var(--section-gap);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem var(--gutter);
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.brand--footer {
  font-size: 1.2rem;
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
}

.footer-links a {
  color: var(--ink-soft);
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-note {
  color: var(--ink-faint);
  width: 100%;
}

@media (min-width: 720px) {
  .footer-note {
    width: auto;
    margin-left: 2rem;
  }
}

/* ---------- Scroll reveals ---------- */

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
  }

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

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .case {
    grid-template-columns: 3rem minmax(0, 1fr);
    row-gap: 1.25rem;
  }

  .case-metric {
    grid-column: 2;
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: 1rem;
  }

  .metric-label {
    margin-top: 0;
  }

  .case-arrow {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-visual {
    position: static;
    max-width: 22rem;
  }
}

@media (max-width: 820px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: auto;
  }

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

  .stat {
    border-left: none;
    padding-left: 0;
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
    border-top: 1px solid var(--line);
  }

  .stat:first-child {
    border-top: none;
    padding-top: 1.75rem;
  }

  .case-index {
    padding-top: 0;
  }

  .contact-actions {
    flex-direction: column;
  }
}