/*-----------------------------------*\
  #main.css — single-scroll home page
  Ashwani Kumar · Computational Engineering
\*-----------------------------------*/

/*-----------------------------------*\
  #TOKENS
\*-----------------------------------*/

:root {
  /* colour — Sunny Beach Day theme */
  --ink: #faf7f2;
  --ink-2: #f4ece1;
  --primary: #e94f37;
  --accent: #e94f37;
  --ember: #e94f37;
  --medium: #c1c2c4;
  --light: #393e41;
  --white: #393e41;

  /* type */
  --font-sans: 'Space Grotesk', 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, Menlo, Consolas, monospace;

  --text-hero: clamp(2.75rem, 1.55rem + 5.1vw, 6.5rem);
  --text-xl: clamp(2.25rem, 1.55rem + 3vw, 4.5rem);
  --text-md: clamp(1.75rem, 1.42rem + 1.4vw, 2.85rem);
  --text-sm: clamp(1.05rem, 0.98rem + 0.3vw, 1.3rem);
  --text-body: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);
  --text-label: 0.72rem;

  /* fluid spacing */
  --space-xs: clamp(0.75rem, 0.6rem + 0.6vw, 1.25rem);
  --space-sm: clamp(1.25rem, 1rem + 1vw, 2rem);
  --space-md: clamp(2.5rem, 1.9rem + 2.5vw, 4.5rem);
  --space-lg: clamp(4.5rem, 3.2rem + 5.5vw, 9rem);

  /* layout */
  --container: min(86vw, 1480px);
  --gutter: clamp(1rem, 0.6rem + 1.6vw, 2rem);
  --radius: 0.5rem;

  /* motion */
  --dur-fast: 0.2s;
  --dur: 0.3s;
  --dur-slow: 0.6s;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/*-----------------------------------*\
  #RESET
\*-----------------------------------*/

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.5;
  color: var(--ink);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

input,
textarea {
  font: inherit;
  width: 100%;
}

::selection {
  background: var(--primary);
  color: var(--white);
}

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

/*-----------------------------------*\
  #BUTTONS & ACTIONS
\*-----------------------------------*/

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 0.8rem 1.6rem;
  border-radius: calc(var(--radius) * 1.2);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

/* Solid Button: Ember Orange background by default, glowing on hover */
.btn-solid,
.btn-primary {
  background: var(--primary);
  border: 1.5px solid var(--primary);
  color: #ffffff !important;
  box-shadow: 0 6px 20px color-mix(in oklab, var(--primary) 30%, transparent);
}

.btn-solid:hover,
.btn-primary:hover,
.btn-solid:focus,
.btn-primary:focus {
  background: color-mix(in oklab, var(--primary) 85%, #000000);
  border-color: var(--primary);
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px color-mix(in oklab, var(--primary) 45%, transparent);
}

/* Ghost / Outline Button: #f4ece1 stroke by default, Ember Orange on hover */
.btn-ghost {
  background: color-mix(in oklab, #f4ece1 10%, transparent);
  border: 1.5px solid color-mix(in oklab, #f4ece1 40%, transparent);
  color: var(--primary) !important;
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px color-mix(in oklab, var(--primary) 40%, transparent);
}

/*-----------------------------------*\
  #TYPE PRIMITIVES
\*-----------------------------------*/

.h-hero,
.h-xl,
.h-md {
  font-weight: 400;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.h-hero {
  font-size: var(--text-hero);
  line-height: 1.05;
  max-width: 100%;
  margin-left: -0.02em;
}

.h-xl {
  font-size: var(--text-xl);
  line-height: 0.95;
  max-width: 14em;
}

.h-md {
  font-size: var(--text-md);
  line-height: 1.12;
  max-width: 18em;
}

.label {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--medium);
}

.lead {
  font-size: var(--text-sm);
  line-height: 1.45;
  max-width: 34ch;
  color: var(--medium);
}

.prose p+p {
  margin-top: 1em;
}

.mono {
  font-family: var(--font-mono);
}

.accent {
  color: var(--primary);
}

/*-----------------------------------*\
  #LAYOUT
\*-----------------------------------*/

.container {
  width: var(--container);
  margin-inline: auto;
}

.section {
  padding-block: var(--space-lg);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid currentColor;
  margin-bottom: 0;
}

/* The head's rule doubles as the first row's rule — otherwise the two
   borders sit apart and read as an empty row. */
.section-head+.pillars,
.section-head+.tl {
  border-top: none;
}

.section-head+.pillars>.pillar:first-child,
.section-head+.tl>.tl-item:first-child,
.section-head+.papers>.paper:first-child {
  border-top: none;
}

/* Prose blocks still need breathing room under the rule. */
.section-head+.split,
.section-head+.who-i-am-layout,
.section-head+.project-filters,
.section-head+.projects,
.section-head+.contact-grid,
.section-head+.toolkit {
  margin-top: var(--space-sm);
}

.section-head .label {
  flex-shrink: 0;
}

.bg-dark {
  background: var(--ink);
  color: var(--light);
}

.bg-ember {
  background: var(--ember);
  color: #1e1914;
}

.bg-ember .h-md,
.bg-ember .paper-title {
  color: #110d0a;
}

.bg-ember .label,
.bg-ember .lead,
.bg-ember .paper-venue {
  color: rgba(30, 25, 20, 0.75);
}

.section-head {
  border-color: color-mix(in oklab, currentColor 20%, transparent);
}

/* two-column body used by intro + pillars + timeline */
.split {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--gutter);
  }
}

/*-----------------------------------*\
  #MARQUEE RAIL
\*-----------------------------------*/

.rail {
  overflow: hidden;
  padding-block: 0.9rem;
  border-radius: var(--radius);
  background: var(--primary);
  box-shadow: 0 4px 20px color-mix(in oklab, var(--primary) 30%, transparent);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}

.rail-track {
  display: flex;
  width: max-content;
  animation: rail 38s linear infinite;
}

.rail-group {
  display: flex;
  flex-shrink: 0;
}

.rail-item {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #ffffff;
  font-weight: 600;
  padding-inline: 1.6rem;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.rail-item::after {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
}

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

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

/*-----------------------------------*\
  #HERO
\*-----------------------------------*/

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(1.1);
  animation: heroDrift 24s ease-in-out infinite alternate;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 60% at 75% 30%, color-mix(in oklab, var(--primary) 22%, transparent), transparent 70%),
    linear-gradient(to bottom, color-mix(in oklab, var(--ink) 55%, transparent) 0%, var(--ink) 92%);
}

@keyframes heroDrift {
  to {
    transform: scale(1.08);
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--gutter) var(--space-sm);
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.hero-mark {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero-mark-name {
  font-family: var(--font-sans);
  font-size: clamp(1.4rem, 1.2rem + 0.8vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1a1a1a;
  line-height: 1.1;
}

.hero-mark-title {
  font-family: var(--font-mono) !important;
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: var(--primary) !important;
  opacity: 1 !important;
}

.hero-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 100%;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.6;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  width: fit-content;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {

  0%,
  100% {
    opacity: 0.4;
    transform: scale(0.9);
  }

  50% {
    opacity: 1;
    transform: scale(1.3);
  }
}

.hero-social {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 0.5rem;
  color: var(--medium);
}

.hero-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  border: 1px solid color-mix(in oklab, var(--light) 20%, transparent);
  color: var(--light);
  transition: all var(--dur) var(--ease);
}

.hero-social a:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  transform: translateY(-2px);
}

.hero-social svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* Domain showcase card on right side */
.domain-card-stack {
  position: relative;
  background: color-mix(in oklab, var(--ink-2) 85%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 28%, transparent);
  border-radius: calc(var(--radius) * 2);
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.domain-card-stack:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.domain-card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.domain-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(1.1);
}

.domain-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--ink-2) 15%, transparent 85%);
}

.domain-card-content {
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.domain-card-title {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
}

.domain-pills {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.domain-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--light);
  background: color-mix(in oklab, var(--primary) 8%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 20%, transparent);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.domain-pill:hover {
  background: color-mix(in oklab, var(--primary) 16%, transparent);
  border-color: var(--primary);
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.hero-title {
  color: var(--white);
  text-wrap: normal;
  max-width: 100%;
  font-size: clamp(3rem, 1.5rem + 4.8vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.hero-desc {
  max-width: 62ch;
  color: var(--light);
  font-size: clamp(1.15rem, 1rem + 0.4vw, 1.4rem);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--space-xs);
}

.hero-foot {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.scroll-cue {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--medium);
}

.scroll-cue::before {
  content: '';
  width: 1px;
  height: 2.5rem;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: cue 2s ease-in-out infinite;
  transform-origin: top;
}

@keyframes cue {

  0%,
  100% {
    transform: scaleY(0.3);
    opacity: 0.4;
  }

  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

/*-----------------------------------*\
  #BUTTONS
\*-----------------------------------*/

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.6rem;
  border-radius: calc(var(--radius) * 1.2);
  border: 1.5px solid transparent;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-solid,
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff !important;
  font-weight: 600;
  box-shadow: 0 6px 20px color-mix(in oklab, var(--primary) 30%, transparent);
}

.btn-solid:hover,
.btn-primary:hover,
.btn-solid:focus,
.btn-primary:focus {
  background: color-mix(in oklab, var(--primary) 82%, #000000);
  border-color: var(--primary);
  color: #ffffff !important;
  box-shadow: 0 10px 28px color-mix(in oklab, var(--primary) 45%, transparent);
}

.btn-ghost {
  background: color-mix(in oklab, #f4ece1 10%, transparent);
  border-color: color-mix(in oklab, #f4ece1 40%, transparent);
  color: var(--primary) !important;
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff !important;
  box-shadow: 0 10px 28px color-mix(in oklab, var(--primary) 40%, transparent);
}

.btn svg {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

/*-----------------------------------*\
  #ANCHOR NAV
\*-----------------------------------*/

.anchor-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--light) 78%, transparent);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid color-mix(in oklab, var(--ink) 12%, transparent);
}

.anchor-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-block: 0.85rem;
}

.anchor-items {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.anchor-items::-webkit-scrollbar {
  display: none;
}

.anchor-link {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--medium);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.anchor-link:hover {
  color: var(--ink);
}

.anchor-link.is-active {
  color: var(--white);
  background: var(--ink);
}

.anchor-name {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.anchor-name span {
  color: var(--primary);
}

@media (max-width: 720px) {
  .anchor-name {
    display: none;
  }
}

/*-----------------------------------*\
  #INTRO / PULL QUOTE
\*-----------------------------------*/

.who-i-am-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.who-i-am-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  align-items: start;
}

@media (min-width: 768px) {
  .who-i-am-row {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: var(--space-lg);
    align-items: start;
  }
}

.profile-portrait-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 320px;
  flex-shrink: 0;
  gap: 0.85rem;
}

.profile-portrait-compact {
  position: relative;
  width: 100%;
  height: 395px;
  border-radius: calc(var(--radius) * 1.3);
  background: var(--ink-2);
  border: 1px solid color-mix(in oklab, var(--primary) 28%, transparent);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  flex-shrink: 0;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.profile-portrait-compact:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 18px 42px color-mix(in oklab, var(--primary) 22%, transparent);
}

.profile-portrait-img-sm {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.04) saturate(1.05);
  transition: transform 0.4s var(--ease);
}

.profile-portrait-compact:hover .profile-portrait-img-sm {
  transform: scale(1.03);
}

.profile-name-outside {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-align: center;
  margin-top: 0.2rem;
}

.intro-body {
  max-width: 100%;
  font-size: clamp(1.15rem, 1.05rem + 0.5vw, 1.35rem);
  line-height: 1.65;
  color: var(--ink);
  text-align: justify;
}

.intro-body p {
  color: var(--ink);
}

.intro-body p+p {
  margin-top: 1em;
}

.intro-quote-below {
  font-size: clamp(1.8rem, 1.4rem + 1.8vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  padding-top: var(--space-xs);
  margin-top: 0.25rem;
  border-top: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  max-width: 100%;
}

.intro-quote-below em {
  font-style: italic;
  color: var(--primary);
  display: inline;
}

/*-----------------------------------*\
  #PILLARS (research focus)
\*-----------------------------------*/

/*-----------------------------------*\
  #BENTO GRID (research focus)
\*-----------------------------------*/

.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .bento-card-wide {
    grid-column: span 7;
  }

  .bento-card-narrow {
    grid-column: span 5;
  }

  .bento-card-full {
    grid-column: span 12;
  }
}

.bento-card {
  position: relative;
  background: var(--ink-2);
  border: 1px solid color-mix(in oklab, var(--primary) 28%, transparent);
  border-radius: calc(var(--radius) * 1.5);
  padding: var(--space-sm) var(--space-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-xs);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #ff7e5f, var(--primary));
  opacity: 0.4;
  transition: opacity 0.35s var(--ease), height 0.35s var(--ease);
  z-index: 2;
}

.bento-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, color-mix(in oklab, var(--primary) 12%, transparent) 0%, transparent 60%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s var(--ease);
  z-index: 1;
}

/* Anime Dynamic Hover Lift & Sheen Glow */
.bento-card:hover {
  border-color: var(--primary);
  transform: translateY(-8px) scale(1.015);
  box-shadow: 0 20px 48px color-mix(in oklab, var(--primary) 22%, transparent),
              0 0 20px color-mix(in oklab, var(--primary) 12%, transparent);
}

.bento-card:hover::before {
  opacity: 1;
  height: 4px;
}

.bento-card:hover::after {
  opacity: 1;
}

.bento-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.bento-num {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.12em;
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  padding: 0.28rem 0.72rem;
  border-radius: var(--radius);
  border: 1px solid color-mix(in oklab, var(--primary) 32%, transparent);
  font-weight: 600;
}

.bento-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: color-mix(in oklab, #1a1a1a 65%, transparent);
  font-weight: 500;
}

.bento-title {
  position: relative;
  z-index: 2;
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.2;
  color: #1a1a1a;
  margin-top: 0.4rem;
  letter-spacing: -0.01em;
}

/* High-legibility description text matching background palette */
.bento-text {
  position: relative;
  z-index: 2;
  color: color-mix(in oklab, #1a1a1a 82%, transparent);
  font-size: 1.02rem;
  line-height: 1.6;
  margin-top: 0.25rem;
}

.bento-footer {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: var(--space-xs);
}

.bento-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 10%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 28%, transparent);
  border-radius: 100px;
  padding: 0.3rem 0.85rem;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.bento-card:hover .bento-tag {
  transform: translateY(-2px);
  background: color-mix(in oklab, var(--primary) 18%, transparent);
  border-color: var(--primary);
  box-shadow: 0 4px 12px color-mix(in oklab, var(--primary) 15%, transparent);
}

.pillars {
  border-top: 1px solid color-mix(in oklab, currentColor 18%, transparent);
}

.pillar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xs) var(--space-sm);
  align-items: start;
  padding-block: var(--space-sm);
  border-bottom: 1px solid color-mix(in oklab, currentColor 18%, transparent);
}

@media (min-width: 900px) {
  .pillar {
    grid-template-columns: 4rem minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }
}

.pillar-num {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.1em;
  color: var(--primary);
  padding-top: 0.4em;
}

.pillar-title {
  font-size: var(--text-md);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.pillar-text {
  color: color-mix(in oklab, currentColor 65%, transparent);
  max-width: 40ch;
  grid-column: 2;
}

@media (min-width: 900px) {
  .pillar-text {
    grid-column: 3;
  }
}

/*-----------------------------------*\
  #TIMELINE WITH LOGO BADGES
\*-----------------------------------*/

.tl {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.tl-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem var(--space-sm);
  padding-block: var(--space-xs);
  border: none;
}

@media (min-width: 900px) {
  .tl-item {
    grid-template-columns: 11rem 6rem minmax(0, 1fr);
    align-items: center;
  }
}

.org-logo {
  width: 5.4rem;
  height: 2.7rem;
  aspect-ratio: 2 / 1;
  border-radius: var(--radius);
  background: #ffffff;
  border: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  object-fit: contain;
  padding: 0.35rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.org-logo-badge {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: calc(var(--radius) * 1.1);
  background: color-mix(in oklab, var(--primary) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.tl-date,
span.tl-date,
.tl-item .tl-date {
  font-family: var(--font-mono) !important;
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.06em !important;
  color: var(--primary) !important;
  line-height: 1.15 !important;
}

.tl-role {
  font-family: var(--font-sans);
  font-size: 1.2rem !important;
  font-weight: 600 !important;
  line-height: 1.25 !important;
  color: var(--white) !important;
}

.tl-org {
  font-family: var(--font-mono);
  font-size: 0.98rem !important;
  font-weight: 500 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  color: color-mix(in oklab, currentColor 82%, transparent) !important;
  margin-top: 0.35rem !important;
}

/*-----------------------------------*\
  #STICKY SIDE-NAV CV LAYOUT (FORGIS STYLED)
\*-----------------------------------*/

.cv-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 900px) {
  .cv-container {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 4rem;
    align-items: start;
  }
}

.cv-sidebar {
  position: relative;
  height: 100%;
}

.cv-sticky-nav {
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
}

@media (min-width: 900px) {
  .cv-sticky-nav {
    position: sticky;
    top: 110px;
    flex-direction: column;
    overflow-x: visible;
    padding-bottom: 0;
    padding-right: 1.5rem;
    gap: 0;
    border-right: none;
  }
}

.cv-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: color-mix(in oklab, #1a1a1a 62%, transparent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in oklab, var(--primary) 18%, transparent);
  white-space: nowrap;
  transition: color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              background 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.cv-tab:hover {
  color: var(--primary);
  border-bottom-color: color-mix(in oklab, var(--primary) 45%, transparent);
}

.cv-tab.active {
  color: var(--primary);
  font-weight: 600;
  border-bottom-color: var(--primary);
}

.tab-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  opacity: 0.8;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.tab-label {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  flex-grow: 1;
}

.cv-tab .tab-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0;
  transform: scale(0.3) translateX(-6px);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.cv-tab.active .tab-dot {
  opacity: 1;
  transform: scale(1) translateX(0);
  box-shadow: 0 0 10px var(--primary), 0 0 18px color-mix(in oklab, var(--primary) 50%, transparent);
}

.cv-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.cv-block {
  scroll-margin-top: 110px;
}

/*-----------------------------------*\
  #AWARDS & ACCOMPLISHMENTS TIMELINE
\*-----------------------------------*/

.awards-timeline {
  position: relative;
  list-style: none;
  padding-left: 2rem;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.awards-timeline::before {
  content: '';
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.45rem;
  width: 2px;
  background: color-mix(in oklab, var(--primary) 35%, transparent);
}

.award-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.award-dot {
  position: absolute;
  left: -1.8rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--ink-2);
  box-shadow: 0 0 10px color-mix(in oklab, var(--primary) 60%, transparent);
}

.award-title {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.25;
}

.award-desc {
  font-size: 0.98rem;
  color: color-mix(in oklab, #1a1a1a 80%, transparent);
  line-height: 1.5;
  margin-top: 0.25rem;
}

.tl-points {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.4rem;
  color: color-mix(in oklab, currentColor 68%, transparent);
  max-width: 62ch;
}

.tl-points li {
  padding-left: 1.1rem;
  position: relative;
}

.tl-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 1px;
  background: var(--primary);
}

/*-----------------------------------*\
  #PAPERS (2-Column Minimalist Line Separated Grid)
\*-----------------------------------*/

.papers {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm) var(--space-lg);
  margin-top: var(--space-md);
}

@media (min-width: 768px) {
  .papers {
    grid-template-columns: repeat(2, 1fr);
  }
}

.paper {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 1.1rem 0.8rem 1.4rem 0.8rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid color-mix(in oklab, currentColor 28%, transparent);
  border-radius: var(--radius);
  transition: background 0.25s ease, padding-inline 0.25s ease, border-color 0.25s ease;
}

a.paper:hover {
  background: rgba(255, 255, 255, 0.22);
  border-bottom-color: rgba(255, 255, 255, 0.85);
  padding-inline: 1.1rem;
}

.paper-year {
  font-family: var(--font-mono) !important;
  font-size: 1.2rem !important;
  letter-spacing: 0.08em !important;
  font-weight: 700 !important;
  color: var(--primary) !important;
  opacity: 1 !important;
}

.paper-title {
  display: block;
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.35;
  padding-right: 2rem;
}

.paper-venue {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.06em;
  opacity: 0.8;
  margin-top: 0.3rem;
}

.paper-go {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  position: absolute;
  top: 1.1rem;
  right: 0.8rem;
}

.paper-go svg {
  width: 0.9em;
  height: 0.9em;
  transition: transform 0.25s ease;
}

a.paper:hover .paper-go svg {
  transform: translate(3px, -3px) scale(1.2);
}

/*-----------------------------------*\
  #PROJECTS
\*-----------------------------------*/

/*-----------------------------------*\
  #PROJECT CATEGORY FILTERS
\*-----------------------------------*/

.project-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-top: var(--space-sm);
  margin-bottom: var(--space-md);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--medium);
  background: color-mix(in oklab, var(--ink) 4%, transparent);
  border: 1px solid color-mix(in oklab, var(--ink) 18%, transparent);
  border-radius: 100px;
  padding: 0.5rem 1.15rem;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  user-select: none;
}

.filter-btn:hover {
  color: var(--ink);
  border-color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  transform: translateY(-1px);
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 18px color-mix(in oklab, var(--primary) 35%, transparent);
}

.filter-icon {
  font-size: 0.9em;
  line-height: 1;
}

.filter-count {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.12rem 0.5rem;
  border-radius: 100px;
  background: color-mix(in oklab, currentColor 15%, transparent);
}

.filter-btn.active .filter-count {
  background: rgba(0, 0, 0, 0.25);
  color: #ffffff;
}

.project-event-badge {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(18, 20, 24, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  border: 1px solid color-mix(in oklab, var(--primary) 65%, transparent);
  border-radius: 100px;
  padding: 0.3rem 0.65rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.project-header-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.2rem;
}

.project-badge-pill {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 500;
}

.projects {
  display: grid;
  gap: var(--space-md) var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 680px) {
  .projects {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md) var(--space-sm);
  }
}

@media (min-width: 1024px) {
  .projects {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-md) var(--space-sm);
  }
}

.project {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.project.is-hidden {
  display: none !important;
}

.project-media {
  position: relative;
  aspect-ratio: 16 / 9;
  max-height: 220px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--ink-2);
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease), filter var(--dur-slow) var(--ease);
}

.project:hover .project-media img {
  transform: scale(1.04);
}

.project-metric {
  position: absolute;
  left: 0.9rem;
  bottom: 0.9rem;
  background: var(--primary);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius);
  max-width: calc(100% - 1.8rem);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-title {
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  max-width: 100%;
}

.project-desc {
  color: color-mix(in oklab, var(--ink) 65%, transparent);
  max-width: 60ch;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.4rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--medium);
  border: 1px solid color-mix(in oklab, var(--ink) 18%, transparent);
  border-radius: 100px;
  padding: 0.3rem 0.7rem;
}

/*-----------------------------------*\
  #TOOLKIT & 4-COLUMN TECH STACK CARDS
\*-----------------------------------*/

.tech-stack-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

@media (min-width: 640px) {
  .tech-stack-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tech-stack-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tech-category-card {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 1.25rem 1.1rem;
  background: color-mix(in oklab, var(--ink-2) 90%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 20%, transparent);
  border-radius: calc(var(--radius) * 1.3);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.tech-category-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 12px 28px color-mix(in oklab, var(--primary) 15%, transparent);
}

.tech-category-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  border-bottom: 1px solid color-mix(in oklab, var(--primary) 22%, transparent);
  padding-bottom: 0.5rem;
}

.tech-category-title svg {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
}

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tech-pill {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--light);
  background: color-mix(in oklab, var(--primary) 8%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 20%, transparent);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  transition: all 0.25s ease;
}

.tech-pill:hover {
  background: color-mix(in oklab, var(--primary) 20%, transparent);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-1px);
}

.toolkit {
  display: grid;
  gap: var(--space-sm) var(--gutter);
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .toolkit {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .toolkit {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.tool-group-title {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid color-mix(in oklab, currentColor 20%, transparent);
  margin-bottom: 0.9rem;
}

.tool-list li {
  padding-block: 0.35rem;
  color: color-mix(in oklab, currentColor 72%, transparent);
}

/*-----------------------------------*\
  #HOBBIES & BEYOND THE LAB
\*-----------------------------------*/

.section-sub-desc {
  font-size: 1.05rem;
  color: color-mix(in oklab, #1a1a1a 80%, transparent);
  max-width: 65ch;
  margin-top: 0.6rem;
  line-height: 1.6;
}

.hobbies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

@media (min-width: 768px) {
  .hobbies-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.hobby-card {
  position: relative;
  background: var(--ink-2);
  border: 1px solid color-mix(in oklab, var(--primary) 28%, transparent);
  border-radius: calc(var(--radius) * 1.5);
  padding: 1.6rem 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.2rem;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.hobby-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #ff7e5f, var(--primary));
  opacity: 0.4;
  transition: opacity 0.35s var(--ease), height 0.35s var(--ease);
}

.hobby-card:hover {
  border-color: var(--primary);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 48px color-mix(in oklab, var(--primary) 22%, transparent),
              0 0 20px color-mix(in oklab, var(--primary) 12%, transparent);
}

.hobby-card:hover::before {
  opacity: 1;
  height: 4px;
}

.hobby-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hobby-icon-wrap {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 12px;
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.hobby-card:hover .hobby-icon-wrap {
  transform: scale(1.1) rotate(-4deg);
  background: color-mix(in oklab, var(--primary) 20%, transparent);
  border-color: var(--primary);
}

.hobby-icon {
  font-size: 1.65rem;
  line-height: 1;
}

.hobby-title {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.hobby-desc {
  font-size: 1.02rem;
  color: color-mix(in oklab, #1a1a1a 82%, transparent);
  line-height: 1.6;
}

/*-----------------------------------*\
  #CONTACT
\*-----------------------------------*/

.contact-grid {
  display: grid;
  gap: var(--space-md) var(--gutter);
  grid-template-columns: 1fr;
  align-items: stretch;
}

.contact-standalone-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  max-width: 540px;
  margin-inline: auto;
  padding: 1.5rem 1rem;
}

.contact-icons-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.8rem;
  flex-wrap: wrap;
}

/* Icon Buttons: #f4ece1 by default, Ember Orange on Hover */
.contact-icon-btn {
  width: 4.2rem;
  height: 4.2rem;
  border-radius: 16px;
  background: color-mix(in oklab, #f4ece1 12%, transparent);
  border: 1px solid color-mix(in oklab, #f4ece1 40%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f4ece1;
  text-decoration: none;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.contact-icon-btn.email-icon,
.contact-icon-btn.linkedin-icon,
.contact-icon-btn.github-icon,
.contact-icon-btn.scholar-icon {
  color: #f4ece1;
}

.contact-icon-btn:hover,
.contact-icon-btn.email-icon:hover,
.contact-icon-btn.linkedin-icon:hover,
.contact-icon-btn.github-icon:hover,
.contact-icon-btn.scholar-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-4px) scale(1.08);
  background: color-mix(in oklab, var(--primary) 22%, transparent);
  box-shadow: 0 12px 28px color-mix(in oklab, var(--primary) 35%, transparent);
}

.contact-cv-wrap {
  width: 100%;
  max-width: 300px;
  display: flex;
  justify-content: center;
}

/* Download CV Button: #f4ece1 outline by default, Ember Orange solid on Hover */
.cv-download-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1rem 1.8rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: calc(var(--radius) * 1.3);
  background: color-mix(in oklab, #f4ece1 12%, transparent);
  border: 1.5px solid color-mix(in oklab, #f4ece1 50%, transparent);
  color: #f4ece1;
  box-shadow: none;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.cv-download-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 12px 30px color-mix(in oklab, var(--primary) 45%, transparent);
}

/* Location Note: #f4ece1 text */
.contact-location-note {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  color: #f4ece1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  text-align: center;
}

.contact-location-note strong {
  color: #f4ece1;
  font-weight: 700;
}

.location-divider {
  opacity: 0.45;
  margin-inline: 0.25rem;
}

.swiss-eng-badge {
  display: inline-flex;
  align-items: center;
}

.swiss-eng-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in oklab, var(--primary) 65%, transparent);
  transition: color 0.2s var(--ease), text-decoration-color 0.2s var(--ease);
}

.swiss-eng-link:hover {
  color: var(--primary);
  text-decoration-color: var(--primary);
}

.form {
  display: grid;
  gap: 0.75rem;
}

.field {
  background: color-mix(in oklab, currentColor 6%, transparent);
  border: 1px solid color-mix(in oklab, currentColor 20%, transparent);
  border-radius: var(--radius);
  padding: 0.95rem 1.1rem;
  color: inherit;
  transition: border-color var(--dur) var(--ease);
}

.field::placeholder {
  color: color-mix(in oklab, currentColor 45%, transparent);
}

.field:focus {
  outline: none;
  border-color: var(--primary);
}

textarea.field {
  min-height: 9rem;
  resize: vertical;
}

.cv-block {
  margin-bottom: clamp(3.5rem, 2.5rem + 3vw, 5.5rem);
}

.cv-block:last-child {
  margin-bottom: 0;
}

/*-----------------------------------*\
  #SKILLS MATRIX GRID
\*-----------------------------------*/

.skills-matrix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  margin-top: 1.25rem;
}

@media (min-width: 768px) {
  .skills-matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .skills-matrix-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skills-card {
  position: relative;
  background: var(--ink-2);
  border: 1px solid color-mix(in oklab, var(--primary) 24%, transparent);
  border-radius: calc(var(--radius) * 1.5);
  padding: 1.35rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.skills-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 16px 40px color-mix(in oklab, var(--primary) 20%, transparent);
}

.skills-category-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid color-mix(in oklab, var(--primary) 20%, transparent);
}

.category-icon {
  font-size: 1.25rem;
}

.category-title {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
}

.skills-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: #1a1a1a;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid color-mix(in oklab, #1a1a1a 18%, transparent);
  border-radius: 8px;
  padding: 0.35rem 0.75rem;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.skills-card:hover .skill-chip {
  background: color-mix(in oklab, var(--primary) 10%, transparent);
  border-color: color-mix(in oklab, var(--primary) 25%, transparent);
  color: var(--primary);
}

.skill-chip:hover {
  transform: translateY(-2px);
  background: color-mix(in oklab, var(--primary) 20%, transparent) !important;
  border-color: var(--primary) !important;
}

.chip-logo {
  font-size: 1rem;
  line-height: 1;
}

.chip-logo-img {
  width: 1.4rem;
  height: 1.4rem;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 4px;
  background: #ffffff;
  padding: 2px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  display: inline-block;
}

.chip-sub {
  font-size: 0.72rem;
  opacity: 0.7;
}

/*-----------------------------------*\
  #FOOTER
\*-----------------------------------*/

.footer {
  background: var(--ink);
  color: var(--medium);
  padding-block: var(--space-sm);
  border-top: 1px solid color-mix(in oklab, var(--light) 12%, transparent);
}

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

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

.footer-social {
  display: flex;
  gap: 1.2rem;
}

/*-----------------------------------*\
  #MOTION
\*-----------------------------------*/

/* per-word masked reveal for headings */
.w {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}

.w>i {
  display: inline-block;
  font-style: inherit;
  transform: translateY(110%);
  transition: transform 0.9s var(--ease);
  transition-delay: calc(var(--i) * 28ms);
}

.is-in .w>i {
  transform: none;
}

/* generic fade-up */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  transition-delay: calc(var(--i, 0) * 60ms);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .w>i,
  [data-reveal] {
    transform: none;
    opacity: 1;
  }

  .hero-bg img {
    animation: none;
  }
}