/* ==========================================================================
   ARCHIVE — Mohamed Sheref's personal site (main design)
   Aesthetic: Living chromatic paper, mounted polaroid, tactile archive.
   Typography: Newsreader (editorial serif) + General Sans + JetBrains Mono
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;1,6..72,400;1,6..72,600&family=JetBrains+Mono:wght@400;500;600;700&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=general-sans@400,500,600,700&display=swap');

:root {
  --bg-paper: #F6F2EA;
  --bg-card: #FAF7F2;
  --bg-plate: #FFFFFF;
  --bg-tag: #EFE8DC;
  --ink-sumi: #1F1D1A;
  --ink-sepia: #4A453E;
  --ink-muted: #7E776D;
  --border-paper: #E4DAC9;
  --border-strong: #C9BAA2;
  --accent-terra: #C2542D;
  --accent-terra-dim: rgba(194, 84, 45, 0.12);
  --accent-moss: #2E5D4B;
  --accent-moss-dim: rgba(46, 93, 75, 0.12);
  --font-serif: 'Newsreader', Georgia, serif;
  --font-sans: 'General Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --ease-fluid: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-card: 0 4px 16px rgba(74, 69, 62, 0.06), 0 1px 3px rgba(0, 0, 0, 0.03);
  --shadow-card-hover: 0 16px 36px rgba(74, 69, 62, 0.13), 0 2px 6px rgba(0, 0, 0, 0.05);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: #F8F4EA;
  color: var(--ink-sumi);
}

body {
  font-family: var(--font-sans);
  background-color: #F8F4EA;
  color: var(--ink-sumi);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

::selection {
  background: var(--accent-terra);
  color: #FFFFFF;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

img, picture {
  max-width: 100%;
  height: auto;
  display: block;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 2000;
  background: var(--accent-terra); color: #fff; padding: 8px 16px;
  font-family: var(--font-mono); font-size: 0.8rem;
}
.skip-link:focus { left: 0; }

/* ── Living Paper Background ── */
.specimen-bg-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  contain: strict;
  isolation: isolate;
  transform: translateZ(0);
  will-change: transform;
}

/* granulating pigment mottle (watercolor background) */
.specimen-bg-canvas::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1400' height='900'%3E%3Cfilter id='m'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.02 0.03' numOctaves='3' seed='17'/%3E%3C/filter%3E%3Crect width='1400' height='900' filter='url(%23m)' opacity='0.55'/%3E%3C/svg%3E");
  background-size: cover;
  mix-blend-mode: multiply;
  opacity: 0.14;
  filter: sepia(0.5) saturate(1.6) hue-rotate(-10deg);
}

/* tooth of the paper */
.specimen-bg-canvas::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='t'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' seed='5'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23t)'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  opacity: 0.45;
  filter: brightness(1.4) contrast(1.3);
}

.aura-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(75px);
  opacity: 0.45;
  mix-blend-mode: multiply;
  will-change: transform;
  animation: float-aura 22s ease-in-out infinite alternate;
}

.aura-1 {
  width: 70vw; height: 70vw; max-width: 820px; max-height: 820px;
  top: -10%; left: -5%;
  background: radial-gradient(circle, #C2542D 0%, rgba(194, 84, 45, 0) 65%);
  opacity: 0.30;
  animation-duration: 26s;
}

.aura-2 {
  width: 55vw; height: 55vw; max-width: 650px; max-height: 650px;
  top: 35%; right: -8%;
  background: radial-gradient(circle, #D9822B 0%, rgba(217, 130, 43, 0) 65%);
  opacity: 0.26;
  animation-duration: 20s;
  animation-delay: -5s;
}

.aura-3 {
  width: 60vw; height: 60vw; max-width: 700px; max-height: 700px;
  bottom: 5%; left: 15%;
  background: radial-gradient(circle, #2E5D4B 0%, rgba(46, 93, 75, 0) 68%);
  opacity: 0.16;
  animation-duration: 24s;
  animation-delay: -10s;
}

@keyframes float-aura {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-30px, 50px) scale(0.95); }
}

.specimen-topo-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.10;
}

.specimen-topo-svg path { stroke: #B99C7C; }

.specimen-topo-svg path[data-dash] {
  animation: topo-drift 90s linear infinite;
}

@keyframes topo-drift {
  to { stroke-dashoffset: -600; }
}

.paper-grain-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='2' seed='33'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0' intercept='1'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  opacity: 0.045;
  pointer-events: none;
}

/* ── Scaffolding ── */
.app-container {
  position: relative;
  z-index: 10;
  isolation: isolate;
}

.specimen-wrap {
  width: 100%;
  max-width: 1220px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(18px, 4vw, 36px);
  padding-right: clamp(18px, 4vw, 36px);
}

.specimen-section {
  padding-top: clamp(52px, 7vw, 84px);
  padding-bottom: clamp(52px, 7vw, 84px);
  border-bottom: 1px solid var(--border-paper);
  position: relative;
}

/* ── Header ── */
.specimen-header {
  border-bottom: 1px solid var(--border-paper);
  padding: 22px 0;
  background: rgba(246, 242, 234, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.header-brand-title {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--ink-sumi);
  line-height: 1.15;
}

.header-brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 3px;
}

.specimen-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
}

.specimen-nav a {
  color: var(--ink-sepia);
  position: relative;
  padding-bottom: 3px;
}

.specimen-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--accent-terra);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-fluid);
}

.specimen-nav a:hover {
  color: var(--accent-terra);
}

.specimen-nav a:hover::after {
  transform: scaleX(1);
}

/* ── Buttons ── */
.btn-archival {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid var(--border-paper);
  transition: transform 0.3s var(--ease-fluid), box-shadow 0.3s var(--ease-fluid),
              background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-archival:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(74, 69, 62, 0.16);
}

.btn-archival:active {
  transform: translateY(0);
}

.btn-archival svg {
  width: 15px;
  height: 15px;
  flex: none;
}

.btn-terra {
  background: var(--accent-terra);
  color: #FFFFFF;
  border-color: var(--accent-terra);
  box-shadow: 0 2px 8px rgba(194, 84, 45, 0.25);
}

.btn-terra:hover {
  background: #A94320;
  border-color: #A94320;
  color: #FFFFFF;
  box-shadow: 0 10px 24px rgba(194, 84, 45, 0.32);
}

.btn-card {
  background: var(--bg-card);
  color: var(--ink-sumi);
}

.btn-card:hover {
  background: #FFFFFF;
  border-color: var(--border-strong);
}

/* ── Hero ── */
.specimen-hero {
  padding-top: clamp(48px, 7vw, 76px);
  padding-bottom: clamp(48px, 7vw, 76px);
  border-bottom: 1px solid var(--border-paper);
  position: relative;
}

.hero-layout-specimen {
  display: grid;
  grid-template-columns: 1.28fr 0.72fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--ink-sumi);
}

.hero-title em {
  font-style: italic;
  color: var(--accent-terra);
}

.hero-lead {
  font-size: clamp(1.05rem, 1.7vw, 1.2rem);
  color: var(--ink-sepia);
  line-height: 1.65;
  margin-top: 18px;
  max-width: 60ch;
}

.hero-lead strong {
  color: var(--ink-sumi);
  font-weight: 600;
}

.hero-actions-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.hero-social-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink-muted);
}

.hero-social-row a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-sepia);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border-paper);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.hero-social-row a svg {
  width: 14px;
  height: 14px;
  color: var(--ink-muted);
  transition: color 0.2s ease, transform 0.3s var(--ease-fluid);
}

.hero-social-row a:hover {
  color: var(--accent-terra);
  border-color: var(--accent-terra);
}

.hero-social-row a:hover svg {
  color: var(--accent-terra);
  transform: translateY(-2px);
}

.hero-social-row a:hover .icon-blog {
  background-image: url('../images/blog-icon-terra.png');
  transform: translateY(-2px);
}

/* Blog icon: the blog's own favicon glyph, tinted to match the other icons */
.icon-blog {
  display: inline-block;
  width: 15px;
  height: 15px;
  flex: none;
  background: url('../images/blog-icon-grey.png') center / contain no-repeat;
  transition: transform 0.3s var(--ease-fluid);
}

.ruler-scale-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-muted);
  margin-top: 22px;
}

.ruler-ticks {
  position: relative;
  width: 150px;
  height: 8px;
  border-bottom: 1px solid var(--ink-muted);
  background-image: repeating-linear-gradient(90deg, var(--ink-muted) 0, var(--ink-muted) 1px, transparent 1px, transparent 10px);
  background-position: var(--scroll, 0px) bottom;
  overflow: hidden;
}

.ruler-marker {
  position: absolute;
  bottom: 0;
  left: calc(var(--p, 0) * 100%);
  width: 2.5px;
  height: 12px;
  margin-left: -1px;
  background: var(--accent-terra);
  box-shadow: 0 0 6px rgba(194, 84, 45, 0.5);
}

.ruler-readout {
  min-width: 4ch;
  color: var(--accent-terra);
  font-weight: 700;
}

/* Polaroid photo card */
.specimen-mount-aside {
  background: var(--bg-plate);
  border: 1px solid var(--border-paper);
  border-radius: 6px;
  padding: 14px 14px 0;
  box-shadow: 0 10px 30px rgba(74, 69, 62, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  position: relative;
  transition: transform 0.4s var(--ease-fluid), box-shadow 0.4s var(--ease-fluid);
}

.specimen-mount-aside:hover {
  transform: rotate(1.6deg) translateY(-3px);
  box-shadow: 0 18px 44px rgba(74, 69, 62, 0.14), 0 2px 6px rgba(0, 0, 0, 0.05);
}

.specimen-mount-aside::before {
  content: '';
  position: absolute;
  top: -4px;
  right: -4px;
  width: 24px;
  height: 24px;
  background: var(--accent-terra);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  transition: transform 0.4s var(--ease-fluid);
}

.specimen-mount-aside:hover::before {
  transform: translate(2px, -2px);
}

.mount-photo-frame {
  aspect-ratio: 1;
  border-radius: 2px;
  overflow: hidden;
  background: #EFECE6;
}

.mount-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.04) brightness(0.98);
}

.mount-caption {
  padding: 16px 4px 32px;
  font-family: var(--font-sans);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink-sumi);
  text-align: center;
}

.mount-caption .caption-at {
  color: var(--ink-muted);
  font-weight: 600;
}

/* ── Section headers ── */
.section-headline-serif {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink-sumi);
  line-height: 1.15;
}

.section-caption-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-terra);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.section-summary-lead {
  font-size: 1.05rem;
  color: var(--ink-sepia);
  max-width: 68ch;
  margin-top: 8px;
  line-height: 1.6;
}

/* ── Filter bar ── */
.filter-strip {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 20px;
  margin-bottom: 28px;
}

.filter-pill-btn {
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--bg-plate);
  border: 1px solid var(--border-paper);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--ink-sepia);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease,
              transform 0.25s var(--ease-fluid);
  cursor: pointer;
}

.filter-pill-btn:hover {
  background: var(--bg-card);
  border-color: var(--border-strong);
  color: var(--ink-sumi);
  transform: translateY(-1px);
}

.filter-pill-btn.active {
  background: var(--ink-sumi);
  color: #FFFFFF;
  border-color: var(--ink-sumi);
}

/* ── Projects grid ── */
.dossier-archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.archive-card {
  background: var(--bg-plate);
  border: 1px solid var(--border-paper);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s var(--ease-fluid), box-shadow 0.35s var(--ease-fluid),
              border-color 0.25s ease;
  position: relative;
}

.archive-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card-hover);
}

.archive-card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #ECE7DE;
  border-bottom: 1px solid var(--border-paper);
  overflow: hidden;
}

.archive-card-media picture {
  display: block;
  width: 100%;
  height: 100%;
}

.archive-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease-fluid);
}

.archive-card:hover .archive-card-media img {
  transform: scale(1.045);
}

.archive-stamp-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(250, 246, 239, 0.96);
  border: 1px solid var(--border-strong);
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-terra);
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  z-index: 2;
  transition: transform 0.35s var(--ease-fluid);
}

.archive-card:hover .archive-stamp-tag {
  transform: translateY(-2px);
}

.archive-card-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
}

.archive-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink-sumi);
  line-height: 1.25;
}

.archive-card-desc {
  font-size: 0.92rem;
  color: var(--ink-sepia);
  line-height: 1.55;
  flex-grow: 1;
}

/* Tech stack as dot-separated text */
.stack-dot-list {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 2;
  color: var(--ink-sepia);
  letter-spacing: 0.01em;
}

/* About: bio text + stack panel side by side, stacked on smaller screens */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(20px, 3vw, 40px);
  margin-top: 20px;
  align-items: start;
}

.card-stack-line {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  margin-top: 2px;
}

.archive-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-top: 1px dashed var(--border-paper);
  padding-top: 12px;
  margin-top: auto;
}

.archive-card-footer .foot-label {
  color: var(--ink-muted);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.archive-card-footer a {
  color: var(--accent-terra);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.archive-card-footer a .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease-fluid);
}

.archive-card-footer a:hover {
  text-decoration: underline;
}

.archive-card-footer a:hover .arrow {
  transform: translate(2px, -2px);
}

/* Re-pop animation when the filter changes */
@keyframes card-pop {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

.archive-card.pop {
  animation: card-pop 0.45s var(--ease-fluid) both;
}

/* ── Certifications (card deck, as in the original specimen) ── */
.credentials-deck {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 26px;
}

.credential-entry {
  background: var(--bg-plate);
  border: 1px solid var(--border-paper);
  border-radius: 8px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s var(--ease-fluid), box-shadow 0.35s var(--ease-fluid),
              border-color 0.25s ease;
}

.credential-entry:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card-hover);
}

.credential-entry-issuer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-terra);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.credential-entry-issuer .year {
  color: var(--ink-muted);
  font-weight: 500;
}

.credential-entry-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink-sumi);
}

.credential-entry-desc {
  font-size: 0.86rem;
  color: var(--ink-sepia);
  flex-grow: 1;
}

.credential-entry-link {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-terra);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  align-self: flex-start;
}

.credential-entry-link .arrow,
.credential-static .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease-fluid);
}

.credential-entry-link:hover {
  text-decoration: underline;
}

.credential-entry-link:hover .arrow {
  transform: translate(2px, -2px);
}

.credential-static {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

/* ── Experience & education log ── */
.log-timeline {
  display: flex;
  flex-direction: column;
  margin-top: 26px;
  background: var(--bg-plate);
  border: 1px solid var(--border-paper);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.log-entry-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-paper);
  align-items: baseline;
  position: relative;
  transition: background 0.25s ease;
}

.log-entry-row::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-terra);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s var(--ease-fluid);
}

.log-entry-row:last-child {
  border-bottom: none;
}

.log-entry-row:hover {
  background: var(--bg-card);
}

.log-entry-row:hover::before {
  transform: scaleY(1);
}

.log-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent-terra);
  letter-spacing: 0.02em;
}

.log-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--ink-sumi);
}

.log-org {
  font-size: 0.88rem;
  color: var(--ink-sepia);
  margin-top: 2px;
}

.log-notes {
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-top: 5px;
  line-height: 1.55;
}

/* ── Contact ── */
.inquiry-hero-mail {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  color: var(--ink-sumi);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-bottom: 2px solid var(--accent-terra);
  padding-bottom: 4px;
  margin-top: 20px;
  transition: color 0.25s ease;
}

.inquiry-hero-mail .arrow {
  display: inline-block;
  transition: transform 0.35s var(--ease-fluid);
}

.inquiry-hero-mail:hover {
  color: var(--accent-terra);
}

.inquiry-hero-mail:hover .arrow {
  transform: translate(4px, -4px);
}

.social-chip-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.social-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: var(--bg-plate);
  border: 1px solid var(--border-paper);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-sepia);
  box-shadow: 0 2px 8px rgba(74, 69, 62, 0.05);
  transition: transform 0.3s var(--ease-fluid), box-shadow 0.3s var(--ease-fluid),
              border-color 0.2s ease, color 0.2s ease;
}

.social-chip svg {
  width: 17px;
  height: 17px;
  flex: none;
  color: var(--ink-muted);
  transition: color 0.2s ease, transform 0.3s var(--ease-fluid);
}

.social-chip:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: 0 12px 26px rgba(74, 69, 62, 0.13);
  color: var(--ink-sumi);
}

.social-chip:hover svg {
  color: var(--accent-terra);
  transform: scale(1.08);
}

.social-chip .icon-blog {
  width: 17px;
  height: 17px;
}

.social-chip:hover .icon-blog {
  background-image: url('../images/blog-icon-terra.png');
  transform: scale(1.08);
}

/* ── Footer ── */
.specimen-footer {
  padding: 32px 0;
  border-top: 1px solid var(--border-paper);
  background: var(--bg-card);
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  will-change: opacity, transform;
  transition: opacity 0.7s var(--ease-fluid), transform 0.7s var(--ease-fluid);
  transition-delay: var(--d, 0s);
}

.reveal.in {
  opacity: 1;
  transform: none;
  will-change: auto;
}

/* Offscreen section rendering optimization for low-memory mobile devices */
#credentials, #experience, #contact {
  content-visibility: auto;
  contain-intrinsic-size: 1px 650px;
}

@media (max-width: 768px), (pointer: coarse) {
  /* Mobile background optimization: zero Gaussian blur and no blend-mode readbacks */
  .aura-orb {
    filter: none;
    mix-blend-mode: normal;
  }

  .aura-1 {
    background: radial-gradient(circle, rgba(194, 84, 45, 0.28) 0%, rgba(194, 84, 45, 0.14) 35%, rgba(194, 84, 45, 0.04) 58%, transparent 72%);
    opacity: 1;
  }

  .aura-2 {
    background: radial-gradient(circle, rgba(217, 130, 43, 0.24) 0%, rgba(217, 130, 43, 0.12) 35%, rgba(217, 130, 43, 0.03) 58%, transparent 72%);
    opacity: 1;
  }

  .aura-3 {
    background: radial-gradient(circle, rgba(46, 93, 75, 0.16) 0%, rgba(46, 93, 75, 0.08) 35%, rgba(46, 93, 75, 0.02) 58%, transparent 72%);
    opacity: 1;
  }

  .specimen-bg-canvas::before {
    filter: none;
    opacity: 0.10;
  }

  .specimen-bg-canvas::after {
    filter: none;
    opacity: 0.30;
  }

  .specimen-topo-svg path[data-dash] {
    animation: none;
  }

  /* Responsive reveal tuned for touch momentum scrolling */
  .reveal {
    transform: translateY(8px);
    transition: opacity 0.35s var(--ease-fluid), transform 0.35s var(--ease-fluid);
  }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-layout-specimen {
    grid-template-columns: 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .dossier-archive-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .credentials-deck {
    grid-template-columns: repeat(2, 1fr);
  }
  .specimen-mount-aside {
    max-width: 420px;
  }
}

@media (max-width: 640px) {
  .dossier-archive-grid,
  .credentials-deck {
    grid-template-columns: 1fr;
  }
  .log-entry-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 18px 18px;
  }
  .specimen-nav {
    display: none;
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .aura-orb, .specimen-topo-svg path[data-dash] { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}