/* --- Custom Properties --- */
:root {
  --c-red:     #E63329;
  --c-orange:  #F47920;
  --c-yellow:  #F9C51A;
  --c-green:   #3DAA35;
  --c-teal:    #00A99D;
  --c-blue:    #1D71B8;
  --c-purple:  #6D2E7A;
  --c-magenta: #E31B8E;

  /* Section colours */
  --c-projects: var(--c-blue);
  --c-thoughts: var(--c-magenta);
  --c-archive:  var(--c-green);

  /* Surfaces */
  --c-bg:             #F5F5F0;
  --c-surface:        #FFFFFF;
  --c-border:         #E2E2DC;
  --c-border-strong:  #C6C6C0;

  /* Text */
  --c-text:    #1A1A18;
  --c-text-2:  #5A5A56;
  --c-text-3:  #9A9A94;

  /* Typography */
  --font: 'Inter', 'Helvetica Neue', Arial, -apple-system, sans-serif;

  /* Type scale (fluid) */
  --text-display: clamp(2.75rem, 8vw, 5.5rem);
  --text-h1:      clamp(1.875rem, 4.5vw, 3rem);
  --text-h2:      clamp(1.375rem, 2.5vw, 2rem);
  --text-h3:      clamp(1.125rem, 1.8vw, 1.375rem);
  --text-body:    1rem;
  --text-small:   0.8125rem;
  --text-micro:   0.6875rem;

  /* Line heights */
  --lh-tight:   1.1;
  --lh-snug:    1.25;
  --lh-normal:  1.55;
  --lh-relaxed: 1.75;

  /* Letter spacing */
  --ls-tight:  -0.03em;
  --ls-normal: 0;
  --ls-wide:   0.05em;
  --ls-wider:  0.11em;

  /* Spacing (4px base) */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4rem;
  --sp-9: 6rem;
  --sp-10: 8rem;

  /* Layout */
  --container:  74rem;
  --grid-gap:   1.5rem;

  /* Card */
  --card-band:    5px;
  --card-radius:  2px;
  --card-pad:     var(--sp-5);

  /* Motion */
  --ease-fast:  120ms ease;
  --ease-base:  220ms ease;
  --ease-slow:  420ms ease;

  /* Shadows */
  --shadow-card:       0 1px 2px rgba(0,0,0,0.06), 0 3px 10px rgba(0,0,0,0.05);
  --shadow-card-hover: 0 4px 14px rgba(0,0,0,0.10), 0 14px 32px rgba(0,0,0,0.07);
  --shadow-hero:       0 8px 36px rgba(0,0,0,0.13), 0 28px 72px rgba(0,0,0,0.09);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: var(--text-body);
  line-height: var(--lh-normal);
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font: inherit; color: inherit; }

/* --- Accessibility --- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; top: -200%; left: var(--sp-4); z-index: 9999;
  padding: var(--sp-2) var(--sp-4); background: var(--c-text); color: var(--c-surface);
  font-size: var(--text-small); font-weight: 700; letter-spacing: var(--ls-wide);
  text-transform: uppercase; transition: top var(--ease-fast);
}
.skip-link:focus { top: var(--sp-4); }

/* --- Layout --- */
.container {
  width: 100%; max-width: var(--container);
  margin-inline: auto; padding-inline: var(--sp-6);
}

@media (max-width: 768px) {
  :root { --grid-gap: 1rem; }
  .container { padding-inline: var(--sp-4); }
}

/* --- Navigation --- */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245,245,240,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border);
}

.nav-inner {
  display: flex; align-items: center;
  justify-content: space-between; height: 3.5rem;
}

.nav-logo {
  font-size: var(--text-small); font-weight: 800;
  letter-spacing: var(--ls-tight); color: var(--c-text);
  white-space: nowrap;
}

.nav-links {
  display: flex; align-items: center; gap: var(--sp-6);
}

.nav-link {
  font-size: var(--text-micro); font-weight: 700;
  color: var(--c-text-2); letter-spacing: var(--ls-wider);
  text-transform: uppercase; position: relative;
  transition: color var(--ease-fast);
  padding-bottom: 2px;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--c-text);
  transition: width var(--ease-base);
}
.nav-link:hover, .nav-link.active { color: var(--c-text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-right {
  display: flex; align-items: center; gap: var(--sp-5);
}

/* Language switcher */
.lang-switcher {
  display: flex; align-items: center; gap: 2px;
}

.lang-btn {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3); padding: 3px 6px;
  border-radius: 2px; transition: all var(--ease-fast);
  line-height: 1;
}
.lang-btn:hover { color: var(--c-text); }
.lang-btn.active {
  background: var(--c-text); color: var(--c-surface);
}

/* Mobile toggle */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: var(--sp-2); cursor: pointer;
}
.nav-toggle span {
  display: block; width: 20px; height: 1.5px;
  background: var(--c-text); border-radius: 1px;
  transition: transform var(--ease-base), opacity var(--ease-base);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-links {
    display: none; position: absolute;
    top: 3.5rem; left: 0; right: 0;
    background: var(--c-bg); border-bottom: 1px solid var(--c-border);
    flex-direction: column; align-items: flex-start;
    padding: var(--sp-4) var(--sp-6); gap: var(--sp-4);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
}

.hero-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-hero);
  border-radius: var(--card-radius);
  width: min(420px, 88vw);
  overflow: hidden;
  user-select: none;
}

.hero-card__header {
  padding: var(--sp-6) var(--sp-6) var(--sp-5);
}

.hero-card__name {
  font-size: 1.4rem; font-weight: 800;
  letter-spacing: var(--ls-tight); line-height: 1.1;
  margin-bottom: var(--sp-1);
}

.hero-card__subtitle {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3);
}

.hero-card__bands {
  display: flex; flex-direction: column;
  padding: var(--sp-2) var(--sp-3) var(--sp-6);
}

.hero-card__band {
  display: flex; align-items: center;
  padding: 0.8rem var(--sp-5);
  border-radius: 26px;
  position: relative;
  margin-bottom: -14px;
}
.hero-card__band:last-child { margin-bottom: 0; }

/* Palette — exact order and values from design brief */
.hero-card__band:nth-child(1) { background: #0177BC; z-index: 5; }
.hero-card__band:nth-child(2) { background: #F6C500; z-index: 4; }
.hero-card__band:nth-child(3) { background: #DE0615; z-index: 3; }
.hero-card__band:nth-child(4) { background: #4B398B; z-index: 2; }
.hero-card__band:nth-child(5) { background: #41ADC9; z-index: 1; }

.hero-card__band-text {
  font-size: var(--text-small); font-weight: 700;
  color: #fff; letter-spacing: 0.01em;
}
/* Yellow is too light for white text */
.hero-card__band:nth-child(2) .hero-card__band-text { color: #1A1A18; }

.hero-card__footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--sp-3) var(--sp-6);
  border-top: 1px solid var(--c-border);
}

.hero-card__meta {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3);
}

/* --- Home Hero Section --- */
.home-hero {
  min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding: var(--sp-10) var(--sp-6) var(--sp-9);
}

.home-hero__grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.5;
}

.home-hero__content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column;
  align-items: center; gap: var(--sp-8);
}

.home-hero__intro {
  max-width: 34rem; text-align: center;
}

.home-hero__tagline {
  font-size: var(--text-h3); font-weight: 400;
  line-height: var(--lh-relaxed); color: var(--c-text-2);
}

.home-hero__ctas {
  display: flex; gap: var(--sp-3);
  flex-wrap: wrap; justify-content: center;
  margin-top: var(--sp-5);
}

/* --- Section Layout --- */
.section {
  padding-block: var(--sp-9);
}

.section__header {
  display: flex; align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--c-border);
}

.section__title {
  font-size: var(--text-h2); font-weight: 700;
  letter-spacing: var(--ls-tight);
}

.section__eyebrow {
  display: flex; align-items: center; gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.section__bar {
  width: 20px; height: var(--card-band);
  background: var(--section-color, var(--c-text));
}

.section__link {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3); transition: color var(--ease-fast);
}
.section__link:hover { color: var(--c-text); }

/* --- Page Header --- */
.page-header {
  padding-top: var(--sp-8); padding-bottom: var(--sp-7);
  border-bottom: 1px solid var(--c-border);
  margin-bottom: var(--sp-7);
}

.page-header__band {
  width: 28px; height: var(--card-band);
  background: var(--section-color, var(--c-text));
  margin-bottom: var(--sp-5);
}

.page-header__title {
  font-size: var(--text-display); font-weight: 800;
  letter-spacing: var(--ls-tight); line-height: var(--lh-tight);
}

.page-header__subtitle {
  font-size: var(--text-h3); font-weight: 400;
  color: var(--c-text-2); margin-top: var(--sp-3);
}

/* --- Card System (atomic unit) --- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  overflow: hidden; position: relative;
  transition: box-shadow var(--ease-base), transform var(--ease-base);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

.card__band {
  height: var(--card-band);
  background: var(--band-color, var(--c-text));
  flex-shrink: 0;
}

/* Image / media slot */
.card__media {
  position: relative; overflow: hidden;
  background: var(--c-border); flex-shrink: 0;
}
.card__media--wide  { aspect-ratio: 16/9; }
.card__media--square { aspect-ratio: 1; }
.card__media--tall  { aspect-ratio: 3/4; }

.card__media img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transition: transform 380ms ease;
}
.card:hover .card__media img { transform: scale(1.04); }

.card__media-placeholder {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--c-border) 0%, var(--c-border-strong) 100%);
  display: flex; align-items: center; justify-content: center;
}
.card__media-placeholder::after {
  content: ''; width: 28px; height: 28px;
  border: 1.5px solid var(--c-text-3); opacity: 0.35;
}

/* Card body */
.card__body {
  padding: var(--card-pad);
  display: flex; flex-direction: column;
  gap: var(--sp-3); flex: 1;
}

.card__tag {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--band-color, var(--c-text-2));
}

.card__title {
  font-size: var(--text-h3); font-weight: 700;
  line-height: var(--lh-snug); letter-spacing: var(--ls-tight);
}

.card__excerpt {
  font-size: var(--text-small); line-height: var(--lh-relaxed);
  color: var(--c-text-2); flex: 1;
}

.card__meta {
  display: flex; align-items: center; gap: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
  margin-top: auto;
}

.card__date {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3);
}

.card__arrow {
  margin-left: auto;
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--band-color, var(--c-text));
  transition: opacity var(--ease-fast);
}
.card:hover .card__arrow { opacity: 0.7; }

/* Full-card link overlay */
.card__overlay {
  position: absolute; inset: 0; z-index: 1;
}

/* Size variants */
.card--sm .card__body { padding: var(--sp-4); gap: var(--sp-2); }
.card--sm .card__title { font-size: 1rem; }

/* --- Card Grid --- */
.card-grid {
  display: grid; gap: var(--grid-gap);
  grid-template-columns: repeat(3, 1fr);
}
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .card-grid      { grid-template-columns: repeat(2, 1fr); }
  .card-grid--4   { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .card-grid, .card-grid--2, .card-grid--4 {
    grid-template-columns: 1fr;
  }
}

/* --- Archive List --- */
.archive-list {
  display: flex; flex-direction: column;
}

.archive-item {
  display: grid;
  grid-template-columns: 5rem 1fr auto;
  align-items: baseline; gap: var(--sp-5);
  padding: var(--sp-4) var(--sp-3);
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text); text-decoration: none;
  transition: background var(--ease-fast), padding var(--ease-fast);
  margin-inline: calc(-1 * var(--sp-3));
  border-radius: var(--card-radius);
}
.archive-item:last-child { border-bottom: none; }
.archive-item:hover { background: var(--c-surface); }

.archive-item__year {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3);
}

.archive-item__title {
  font-size: var(--text-body); font-weight: 500;
  line-height: var(--lh-snug);
}

.archive-item__category {
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  color: var(--c-text-3); white-space: nowrap;
}

@media (max-width: 600px) {
  .archive-item { grid-template-columns: 3.5rem 1fr; row-gap: var(--sp-1); }
  .archive-item__category { grid-column: 2; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 0.65rem var(--sp-5);
  font-size: var(--text-micro); font-weight: 700;
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  border: 1.5px solid transparent;
  border-radius: var(--card-radius);
  transition: all var(--ease-fast); cursor: pointer;
}

.btn--primary {
  background: var(--c-text); color: var(--c-surface);
  border-color: var(--c-text);
}
.btn--primary:hover {
  background: transparent; color: var(--c-text);
}

.btn--secondary {
  background: transparent; color: var(--c-text);
  border-color: var(--c-border-strong);
}
.btn--secondary:hover { border-color: var(--c-text); }

/* --- Footer --- */
.site-footer {
  padding-block: var(--sp-7);
  border-top: 1px solid var(--c-border);
  margin-top: var(--sp-10);
}

.footer-inner {
  display: flex; justify-content: space-between;
  align-items: center; gap: var(--sp-5); flex-wrap: wrap;
}

.footer-name {
  font-size: var(--text-small); font-weight: 800;
  letter-spacing: var(--ls-tight);
}

.footer-rights {
  font-size: var(--text-micro); color: var(--c-text-3);
  letter-spacing: var(--ls-wider); text-transform: uppercase;
  margin-top: var(--sp-1);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.footer-social__link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-3);
  transition: color var(--ease-fast);
}
.footer-social__link:hover { color: var(--c-text); }
.footer-social__link svg {
  width: 20px;
  height: 20px;
}

/* --- Section colour tokens --- */
.section-projects { --section-color: #0177BC; }
.section-thoughts  { --section-color: #DE0615; }
.section-archive   { --section-color: #F6C500; }

/* ============================================================
   HOME — Section cards (scard)
   ============================================================ */

.home-header {
  padding-top: var(--sp-9);
  padding-bottom: var(--sp-7);
}
.home-header__name {
  font-size: var(--text-display);
  font-weight: 800;
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
}
.home-header__intro {
  font-size: var(--text-h3);
  font-weight: 400;
  color: var(--c-text-2);
  line-height: var(--lh-relaxed);
  max-width: 40rem;
  margin-top: var(--sp-5);
}

.home-cards {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  padding-bottom: var(--sp-10);
}

.scard {
  border-radius: 28px;
  padding: var(--sp-6) var(--sp-7);
  color: #fff;
}
.scard--projects { background: #0177BC; }
.scard--thoughts  { background: #DE0615; }
.scard--archive   { background: #F6C500; color: #1A1A18; }

.scard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
}
.scard__info { flex: 1; min-width: 0; }

.scard__eyebrow {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: var(--sp-2);
}
.scard__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
}

.scard__see-all {
  flex-shrink: 0;
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  padding: 0.45rem 1.1rem;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: 100px;
  text-decoration: none;
  transition: color var(--ease-fast), border-color var(--ease-fast), background var(--ease-fast);
}
.scard__see-all::after { content: ' →'; }

.scard:hover .scard__see-all,
.scard:focus-within .scard__see-all {
  color: #fff;
  border-color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.12);
}

.scard__reveal {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 380ms cubic-bezier(0.4, 0, 0.2, 1);
}
.scard__reveal-inner { overflow: hidden; }

.scard:hover .scard__reveal,
.scard:focus-within .scard__reveal {
  grid-template-rows: 1fr;
}

.scard__preview { padding-top: var(--sp-5); }

.scard__preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}
.scard__preview-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}
.scard__mini {
  background: rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  color: #fff;
  text-decoration: none;
  transition: background var(--ease-fast);
}
.scard__mini:hover { background: rgba(255,255,255,0.22); }

.scard__mini-cat {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  opacity: 0.55;
}
.scard__mini-title {
  font-size: var(--text-small);
  font-weight: 600;
  line-height: var(--lh-snug);
}
.scard__mini-date {
  font-size: var(--text-micro);
  opacity: 0.45;
  margin-top: auto;
  padding-top: var(--sp-3);
}

.scard__preview-list {
  display: flex;
  flex-direction: column;
}
.scard__row {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  align-items: baseline;
  gap: var(--sp-4);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  color: #fff;
  text-decoration: none;
  transition: opacity var(--ease-fast);
}
.scard__row:last-child { border-bottom: none; }
.scard__row:hover { opacity: 0.65; }

.scard__row-cat {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  opacity: 0.55;
}
.scard__row-title {
  font-size: var(--text-body);
  font-weight: 500;
  line-height: var(--lh-snug);
}
.scard__row-date {
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  opacity: 0.45;
  white-space: nowrap;
}

.scard__preview-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-top: var(--sp-4);
  margin-top: var(--sp-2);
  border-top: 1px solid rgba(255,255,255,0.14);
}
.scard__full-link {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: opacity var(--ease-fast);
}
.scard__full-link::after { content: ' →'; }
.scard__full-link:hover { opacity: 0.6; }

.scard--archive .scard__see-all {
  color: rgba(0,0,0,0.55);
  border-color: rgba(0,0,0,0.2);
}
.scard--archive:hover .scard__see-all,
.scard--archive:focus-within .scard__see-all {
  color: rgba(0,0,0,0.85);
  border-color: rgba(0,0,0,0.45);
  background: rgba(0,0,0,0.07);
}
.scard--archive .scard__row {
  color: #1A1A18;
  border-bottom-color: rgba(0,0,0,0.1);
}
.scard--archive .scard__row:hover { opacity: 0.6; }
.scard--archive .scard__mini {
  background: rgba(0,0,0,0.07);
  color: #1A1A18;
}
.scard--archive .scard__mini:hover { background: rgba(0,0,0,0.13); }
.scard--archive .scard__preview-footer { border-top-color: rgba(0,0,0,0.1); }
.scard--archive .scard__full-link { color: rgba(0,0,0,0.7); }

/* ============================================================
   FLIP CARDS — Projects
   ============================================================ */

.pub-grid {
  grid-template-columns: repeat(2, 1fr);
  align-items: start;
}
.pub-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.pub-card {
  perspective: 1100px;
  height: 300px;
  cursor: pointer;
}

.pub-card__inner {
  position: relative;
  width: 100%; height: 100%;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transition: transform 520ms cubic-bezier(0.4, 0, 0.2, 1);
}
.pub-card:hover .pub-card__inner {
  transform: rotateY(180deg);
}

.pub-card__front,
.pub-card__back {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.pub-card__front {
  background: var(--pub-color, var(--c-text));
  display: flex;
  flex-direction: column;
}

.pub-card__front-body {
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.pub-card__type {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--sp-3);
  flex-shrink: 0;
}

.pub-card__title {
  font-size: clamp(1.25rem, 2.2vw, 1.625rem);
  font-weight: 800;
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tight);
  color: #fff;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pub-card__back {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
}

.pub-card__back-band {
  height: var(--card-band);
  background: var(--pub-color, var(--c-text));
  flex-shrink: 0;
}

.pub-card__back-body {
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--sp-3);
  overflow: hidden;
}

.pub-card__abstract {
  font-size: var(--text-small);
  line-height: var(--lh-relaxed);
  color: var(--c-text-2);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pub-card__source {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
  margin-top: auto;
}

.pub-card__journal {
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--c-text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pub-card__year {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--c-text-3);
  flex-shrink: 0;
}

.pub-card__link {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--pub-color, var(--c-text));
  text-decoration: none;
  align-self: flex-start;
  transition: opacity var(--ease-fast);
}
.pub-card__link:hover { opacity: 0.6; }

@media (max-width: 600px) {
  .pub-card { height: 260px; }
}

@media (hover: none) {
  .pub-card:hover .pub-card__inner { transform: none; }
  .pub-card.flipped .pub-card__inner { transform: rotateY(180deg); }
}

/* ============================================================
   EXPANDABLE CARDS — Research & Publications
   ============================================================ */

.pub-expand {
  border-radius: 20px;
  overflow: hidden;
  background: var(--pub-color, var(--c-text));
  transition: box-shadow var(--ease-base);
}
.pub-expand:hover {
  box-shadow: var(--shadow-card-hover);
}

.pub-expand__header {
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.pub-expand__type {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}

.pub-expand__title {
  font-size: clamp(1.25rem, 2.2vw, 1.625rem);
  font-weight: 800;
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tight);
  color: #fff;
}

.pub-expand__authors {
  font-size: var(--text-small);
  font-weight: 500;
  color: rgba(255,255,255,0.72);
  line-height: var(--lh-snug);
}

.pub-expand__reveal {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 420ms cubic-bezier(0.4, 0, 0.2, 1);
}
.pub-expand__reveal-inner {
  overflow: hidden;
}

.pub-expand:hover .pub-expand__reveal {
  grid-template-rows: 1fr;
}

.pub-expand__body {
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
  background: var(--c-bg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.pub-expand__abstract {
  font-size: var(--text-small);
  line-height: var(--lh-relaxed);
  color: var(--c-text-2);
}

.pub-expand__source {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
}

.pub-expand__journal {
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--c-text-2);
}

.pub-expand__year {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--c-text-3);
}

.pub-expand__link {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--c-text-2);
  text-decoration: none;
  align-self: flex-start;
  transition: opacity var(--ease-fast);
}
.pub-expand__link:hover { opacity: 0.6; }

@media (max-width: 1024px) {
  .pub-grid, .pub-grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .pub-grid { grid-template-columns: 1fr; }
}

@media (hover: none) {
  .pub-expand__reveal { grid-template-rows: 1fr; }
}

/* Touch / no-hover: always show reveal */
@media (hover: none) {
  .scard__reveal { grid-template-rows: 1fr; }
}

@media (max-width: 768px) {
  .scard { padding: var(--sp-5); border-radius: 22px; }
  .scard__preview-grid { grid-template-columns: 1fr; }
  .scard__row { grid-template-columns: 4rem 1fr; }
  .scard__row-date { display: none; }
}
@media (max-width: 480px) {
  .scard__see-all { display: none; }
}

/* --- Scroll-reveal animations --- */
@media (prefers-reduced-motion: no-preference) {
  .fade-up {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 480ms ease, transform 480ms ease;
  }
  .fade-up.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .fade-up:nth-child(2) { transition-delay: 80ms; }
  .fade-up:nth-child(3) { transition-delay: 160ms; }
  .fade-up:nth-child(4) { transition-delay: 240ms; }
}