/* ==========================================================================
   GAURAB PANTHA — PORTFOLIO
   Core stylesheet: tokens, base, layout, components
   ========================================================================== */

:root {
  /* Color system */
  --bg: #0a0e14;
  --bg-elev: #0d131b;
  --surface: #10161f;
  --surface-2: #151c27;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #edf0f4;
  --text-muted: #a3abb9;
  --text-faint: #858e9f;
  --accent: #4d8dff;
  --accent-soft: rgba(77, 141, 255, 0.14);
  --accent-line: rgba(77, 141, 255, 0.4);

  /* Type */
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  /* Layout */
  --container: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --radius-s: 4px;
  --radius-m: 8px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-s: 180ms;
  --dur-m: 420ms;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

input,
textarea {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.01em;
}

p {
  margin: 0;
}

::selection {
  background: var(--accent);
  color: #06090e;
}

/* ---- Focus states ---- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

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

.section {
  padding-block: var(--section-y);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.section--tight {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 1px;
  flex: none;
}

.section-num {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  max-width: 30ch;
}

.section-sub {
  color: var(--text-muted);
  max-width: 46ch;
  font-size: 1rem;
  margin-top: 0.85rem;
}

.section-meta {
  max-width: 320px;
  color: var(--text-muted);
  font-size: 0.95rem;
  text-align: right;
}

@media (max-width: 720px) {
  .section-meta { text-align: left; }
}

.grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 90%);
  opacity: 0.5;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  transition: transform var(--dur-s) var(--ease), background var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #06090e;
}

.btn-primary:hover {
  background: #6ba1ff;
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent-line);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn-small {
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
}

/* ---- Navigation ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(10, 14, 20, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color var(--dur-m) var(--ease), background var(--dur-m) var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 14, 20, 0.92);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2vw, 2.1rem);
}

.nav-links a {
  position: relative;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.35rem 0.05rem;
  transition: color var(--dur-s) var(--ease);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
  transition: right var(--dur-m) var(--ease);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  right: 0;
}

.nav-links a[aria-current="page"] {
  color: var(--text);
}

.nav-links a[aria-current="page"]::after {
  right: 0;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-right: -8px;
}

.nav-toggle span {
  width: 20px;
  height: 1.5px;
  background: var(--text);
  transition: transform var(--dur-s) var(--ease), opacity var(--dur-s) var(--ease);
}

.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);
}

.mobile-menu {
  display: none;
}

/* ---- Hero ---- */
.hero {
  padding-top: clamp(3rem, 8vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
  position: relative;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-label .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-name {
  font-size: clamp(2.4rem, 6.2vw, 4.6rem);
  letter-spacing: -0.02em;
}

.hero-statement {
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  margin-top: 0.6rem;
  color: var(--text-muted);
}

.hero-statement em {
  font-style: normal;
  color: var(--text);
}

.hero-copy {
  margin-top: 1.75rem;
  max-width: 50ch;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 2.25rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-portrait {
  position: relative;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-m);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--surface);
}

.hero-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 20, 0.55) 100%);
  pointer-events: none;
}

.hero-portrait-tag {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  background: rgba(10, 14, 20, 0.55);
  border: 1px solid var(--border-strong);
  padding: 0.4rem 0.7rem;
  border-radius: 3px;
  backdrop-filter: blur(6px);
}

.hero-portrait-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---- Intro strip ---- */
.intro-lead {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  max-width: 22ch;
  color: var(--text);
}

.intro-grid {
  margin-top: clamp(2rem, 5vw, 3rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.intro-item {
  padding: 1.4rem 1.5rem;
  border-left: 1px solid var(--border);
}

.intro-item:first-child {
  border-left: none;
}

.intro-item-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.intro-item-value {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

/* ---- About ---- */
.about-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.about-copy p {
  color: var(--text-muted);
  font-size: 1.02rem;
  margin-bottom: 1.15rem;
  max-width: 58ch;
}

.about-copy p:last-of-type {
  margin-bottom: 0;
}

.about-statement {
  margin-top: 2.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  line-height: 1.25;
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
}

.about-side {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: clamp(1.5rem, 3vw, 2rem);
  height: fit-content;
  background: var(--surface);
}

.about-side-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1.25rem;
}

.about-fact {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}

.about-fact:first-of-type {
  border-top: none;
}

.about-fact dt {
  color: var(--text-faint);
}

.about-fact dd {
  margin: 0;
  text-align: right;
  color: var(--text-muted);
  max-width: 60%;
}

/* ---- What I do ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.service-card {
  background: var(--bg);
  padding: clamp(1.5rem, 2.5vw, 2.1rem) clamp(1.25rem, 2vw, 1.6rem);
  transition: background var(--dur-m) var(--ease);
}

.service-card:hover {
  background: var(--surface);
}

.service-num {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 1.75rem;
}

.service-title {
  font-size: 1.08rem;
  margin-bottom: 0.75rem;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ---- Project cards ---- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.filter-btn {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
  transition: all var(--dur-s) var(--ease);
}

.filter-btn:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.filter-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #06090e;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.project-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--surface);
  transition: border-color var(--dur-m) var(--ease), transform var(--dur-m) var(--ease);
}

.project-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}

.project-thumb {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-elev);
  position: relative;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-m) var(--ease);
}

.project-card:hover .project-thumb img {
  transform: scale(1.035);
}

.project-body {
  padding: 1.4rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 0.9rem;
}

.project-num {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text-faint);
}

.project-cat {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.project-name {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1.1rem;
  line-height: 1.55;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}

.tag {
  font-size: 0.72rem;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  color: var(--text-muted);
}

.project-link {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px;
  transition: color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease);
}

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

.project-link .arrow {
  transition: transform var(--dur-s) var(--ease);
}

.project-link:hover .arrow {
  transform: translateX(3px);
}

/* ---- Experience / SSIRC ---- */
.ssirc-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.ssirc-heading {
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  max-width: 20ch;
}

.ssirc-meta {
  margin-top: 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.ssirc-meta strong {
  color: var(--text);
  font-weight: 600;
}

.role-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
  margin-top: 2rem;
}

.role-item {
  background: var(--bg);
  padding: 1.1rem 1.25rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-muted);
}

.role-item span {
  display: block;
  font-size: 0.66rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}

.contrib-list {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.contrib-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.7rem 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.contrib-list li:first-child {
  border-top: none;
}

.contrib-list li::before {
  content: "";
  width: 4px;
  height: 4px;
  margin-top: 0.55rem;
  background: var(--accent);
  flex: none;
  border-radius: 1px;
}

/* ---- Activities ---- */
.activity-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.activity-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: clamp(1.5rem, 2.5vw, 2rem);
  background: var(--surface);
}

.activity-title {
  font-size: 1.05rem;
  margin-bottom: 0.9rem;
}

.activity-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.activity-card li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}

.activity-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 1px;
  background: var(--accent-line);
}

/* ---- Events ---- */
.event-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.event-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--surface);
}

.event-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.event-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.event-body {
  padding: 1.3rem 1.5rem 1.6rem;
}

.event-cat {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.event-title {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.event-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.event-date {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.78rem;
  color: var(--text-faint);
}

/* ---- Gallery ---- */
.gallery-grid {
  columns: 3;
  column-gap: clamp(0.9rem, 2vw, 1.4rem);
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: clamp(0.9rem, 2vw, 1.4rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--surface);
  cursor: zoom-in;
  position: relative;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform var(--dur-m) var(--ease);
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.gallery-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.9rem 1rem 0.75rem;
  font-size: 0.78rem;
  color: var(--text);
  background: linear-gradient(0deg, rgba(6, 9, 14, 0.85), transparent);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
}

.gallery-item:hover .gallery-cap {
  opacity: 1;
  transform: translateY(0);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(6, 9, 14, 0.92);
  backdrop-filter: blur(6px);
  padding: 5vh 5vw;
}

.lightbox.is-open {
  display: flex;
}

.lightbox-inner {
  position: relative;
  max-width: 900px;
  max-height: 88vh;
  width: 100%;
}

.lightbox-inner img {
  max-height: 78vh;
  width: auto;
  margin: 0 auto;
  border-radius: var(--radius-m);
  border: 1px solid var(--border-strong);
}

.lightbox-cap {
  text-align: center;
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.lightbox-close {
  position: absolute;
  top: -3rem;
  right: 0;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: border-color var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}

.lightbox-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Skills ---- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.skill-group-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1.25rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--border);
}

.skill-group ul {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.skill-group li {
  font-size: 0.94rem;
  color: var(--text-muted);
}

/* ---- Timeline ---- */
.timeline {
  position: relative;
  padding-left: clamp(1.75rem, 4vw, 2.5rem);
  border-left: 1px solid var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: clamp(2rem, 4vw, 2.75rem);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(clamp(1.75rem, 4vw, 2.5rem) * -1 - 5px);
  top: 0.35rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}

.timeline-stage {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.timeline-title {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 56ch;
}

/* ---- Hack Club ---- */
.hackclub-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--surface);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
}

.hackclub-copy p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 52ch;
}

.hackclub-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.hackclub-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-s);
  font-family: var(--font-display);
  font-size: 0.95rem;
}

.hackclub-list li span {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---- Achievements ---- */
.achieve-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.achieve-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  padding: clamp(1.5rem, 2.5vw, 1.9rem);
}

.achieve-cat {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.achieve-body {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.achieve-card.is-empty {
  border-style: dashed;
  color: var(--text-faint);
}

.achieve-card.is-empty .achieve-body {
  color: var(--text-faint);
}

/* ---- Contact ---- */
.contact-section {
  border-bottom: none;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-heading {
  font-size: clamp(2rem, 5vw, 3.4rem);
  max-width: 14ch;
}

.contact-desc {
  margin-top: 1.25rem;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 42ch;
}

.contact-actions {
  margin-top: 2.25rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.contact-links {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.contact-link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border);
  transition: background var(--dur-s) var(--ease);
}

.contact-link-row:first-child {
  border-top: none;
}

.contact-link-row:hover {
  background: var(--surface);
}

.contact-link-label {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 0.95rem;
}

.contact-link-label .icon {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.contact-link-value {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ---- Contact form ---- */
.form-field {
  margin-bottom: 1.25rem;
}

.form-field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.6rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-s);
  color: var(--text);
  transition: border-color var(--dur-s) var(--ease);
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent);
  outline: none;
}

.form-field textarea {
  resize: vertical;
  min-height: 130px;
}

.form-note {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-faint);
}

/* ---- Footer ---- */
.site-footer {
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
  padding-bottom: clamp(2rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--border);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.footer-tagline {
  color: var(--text-faint);
  font-size: 0.88rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--dur-s) var(--ease);
}

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

.footer-social {
  display: flex;
  gap: 0.9rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease);
}

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

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-faint);
}

.back-to-top {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-faint);
  transition: color var(--dur-s) var(--ease);
}

.back-to-top:hover {
  color: var(--accent);
}

/* ---- Scroll progress ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  z-index: 101;
  transition: width 80ms linear;
}

/* ---- Reveal animation ---- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 640ms var(--ease), transform 640ms var(--ease);
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---- Page header (about/projects/contact top banner) ---- */
.page-header {
  padding-top: clamp(3rem, 7vw, 4.5rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--border);
}

.page-header .eyebrow {
  margin-bottom: 1.1rem;
}

.page-header h1 {
  font-size: clamp(2.1rem, 5.5vw, 3.4rem);
  max-width: 18ch;
}

.page-header p {
  margin-top: 1.1rem;
  color: var(--text-muted);
  max-width: 52ch;
  font-size: 1.02rem;
}

/* ---- Placeholder note (dev only, visually quiet) ---- */
.placeholder-note {
  font-size: 0.75rem;
  color: var(--text-faint);
  border: 1px dashed var(--border-strong);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-s);
  display: inline-block;
  margin-top: 0.75rem;
}


/* ==========================================================================
   FIXES & ADDITIONS
   ========================================================================== */

/* Skip link: visible only when focused by keyboard */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 300;
  padding: 0.7rem 1.1rem;
  background: var(--accent);
  color: #06090e;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-s);
  transition: top var(--dur-s) var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

main:focus {
  outline: none;
}

/* Project link that isn't published yet */
.project-link.is-soon {
  color: var(--text-faint);
  border-bottom: 1px dashed var(--border-strong);
  cursor: default;
}

.project-link.is-soon:hover {
  color: var(--text-faint);
  border-color: var(--border-strong);
}

/* Footer / contact icons come from <img>, so they keep their own colour */
.footer-social img {
  width: 18px;
  height: 18px;
  opacity: 0.85;
  transition: opacity var(--dur-s) var(--ease);
}

.footer-social a:hover img {
  opacity: 1;
}

.contact-link-label img.icon {
  flex: none;
}

/* Contact fallback (until an email is added in js/config.js) */
.contact-fallback {
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  background: var(--surface);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.contact-fallback[hidden],
#contact-form[hidden],
.contact-link-row[hidden] {
  display: none;
}

.contact-fallback-title {
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  max-width: 24ch;
}

.contact-fallback p {
  margin: 0.9rem 0 1.6rem;
  color: var(--text-muted);
  max-width: 46ch;
}

.about-side-title {
  margin-bottom: 1.25rem;
}

/* Keep long words/emails from overflowing on small screens */
.contact-link-value {
  overflow-wrap: anywhere;
  text-align: right;
}

.contact-link-row {
  gap: 1rem;
}

/* Hide the closed mobile menu from keyboard and screen readers */
@media (max-width: 768px) {
  .mobile-menu {
    visibility: hidden;
  }
  .mobile-menu.is-open {
    visibility: visible;
  }
}

/* Slightly stronger hover on cards that are actually links */
.project-card:has(a.project-link:hover) {
  border-color: var(--accent-line);
}


/* ==========================================================================
   POLISH — visual refinements (ambient glow, motion, cards, gallery)
   ========================================================================== */

:root {
  --accent-2: #8db6ff;
  --glow: 0 18px 44px -20px rgba(77, 141, 255, 0.45);
}

/* Soft ambient glow behind the whole site */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(77, 141, 255, 0.12), transparent 62%),
    radial-gradient(700px 480px at -6% 38%, rgba(77, 141, 255, 0.06), transparent 60%);
}

/* Hero: gradient headline + glowing portrait */
.hero-statement em {
  background: linear-gradient(90deg, #ffffff 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--text);
}

.hero-portrait {
  box-shadow: 0 30px 80px -30px rgba(77, 141, 255, 0.35);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -12px;
  border: 1px solid var(--accent-line);
  border-radius: calc(var(--radius-m) + 6px);
  background: linear-gradient(160deg, rgba(77, 141, 255, 0.08), transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.hero-portrait {
  z-index: 1;
}

/* Section titles get a short accent rule */
.page-header h1,
.section-title {
  text-wrap: balance;
}

/* Buttons: subtle glow on primary */
.btn-primary {
  box-shadow: 0 8px 24px -10px rgba(77, 141, 255, 0.7);
}

.btn-primary:hover {
  box-shadow: 0 12px 30px -10px rgba(77, 141, 255, 0.85);
}

/* Cards: accent line + glow on hover */
.project-card,
.event-card,
.activity-card,
.achieve-card {
  position: relative;
}

.project-card::after,
.event-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--dur-m) var(--ease);
  z-index: 2;
}

.project-card:hover,
.event-card:hover {
  box-shadow: var(--glow);
}

.project-card:hover::after,
.event-card:hover::after {
  opacity: 1;
}

.event-card {
  transition: border-color var(--dur-m) var(--ease), transform var(--dur-m) var(--ease), box-shadow var(--dur-m) var(--ease);
}

.event-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
}

.event-thumb img {
  transition: transform var(--dur-m) var(--ease);
}

.event-card:hover .event-thumb img {
  transform: scale(1.04);
}

.activity-card {
  transition: border-color var(--dur-m) var(--ease), background var(--dur-m) var(--ease);
}

.activity-card:hover {
  border-color: var(--accent-line);
  background: var(--surface-2);
}

/* Cards re-animate in when the filter changes */
@keyframes cardIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

.project-card.is-entering {
  animation: cardIn 520ms var(--ease) both;
  animation-delay: calc(var(--i, 0) * 70ms);
}

/* Filter buttons: counts + clearer active state */
.filter-btn {
  display: inline-flex;
  align-items: center;
}

.filter-btn .count {
  margin-left: 0.5rem;
  font-size: 0.72rem;
  opacity: 0.6;
  font-variant-numeric: tabular-nums;
}

.filter-btn.is-active {
  box-shadow: 0 6px 20px -8px rgba(77, 141, 255, 0.8);
}

.filter-btn.is-active .count {
  opacity: 0.75;
}

/* Tags: a touch of colour on hover */
.tag {
  transition: border-color var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}

.project-card:hover .tag {
  border-color: var(--accent-line);
  color: var(--text);
}

/* Event dates: hide the empty slot, style real ones as a pill */
.event-date {
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
}

.event-date:empty {
  display: none;
}

/* Gallery: caption always visible on touch screens (no hover there) */
@media (hover: none) {
  .gallery-cap {
    opacity: 1;
    transform: none;
  }
}

.gallery-item:focus-visible {
  outline-offset: -3px;
}

/* Lightbox: prev / next + counter */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: rgba(10, 14, 20, 0.7);
  color: var(--text);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}

.lightbox-nav:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.lightbox-nav--prev { left: -0.5rem; }
.lightbox-nav--next { right: -0.5rem; }

.lightbox-count {
  text-align: center;
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

@media (max-width: 600px) {
  .lightbox-nav--prev { left: 0.25rem; }
  .lightbox-nav--next { right: 0.25rem; }
  .lightbox-nav { background: rgba(10, 14, 20, 0.85); }
}

/* Back to top: pill that sits quietly in the footer */
.back-to-top {
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* Footer divider glow */
.site-footer {
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, 80%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-line), transparent);
}

/* Print: clean, light output */
@media print {
  body::before, .scroll-progress, .site-header, .lightbox { display: none !important; }
  html.js [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* Fix: gallery photos were stretched (height attribute vs width:100%) */
.gallery-item img {
  height: auto;
}

/* Fix: <figure> default side margins made gallery photos narrow and misaligned */
.gallery-item {
  margin-inline: 0;
}

/* ==========================================================================
   CONTACT & SOCIAL — hero chips, contact card refinements
   ========================================================================== */
.hero-socials {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hero-socials a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem 0.45rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  transition: color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), transform var(--dur-s) var(--ease), background var(--dur-s) var(--ease);
}

.hero-socials a:hover {
  color: var(--text);
  border-color: var(--accent-line);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.hero-socials img {
  width: 16px;
  height: 16px;
}

.contact-links {
  background: var(--surface);
  box-shadow: var(--glow);
}

.contact-link-row:hover .contact-link-value {
  color: var(--accent);
}

.contact-link-row {
  position: relative;
}

.contact-link-row::after {
  content: "\2197";
  color: var(--text-faint);
  font-size: 0.9rem;
  transition: transform var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}

.contact-link-row:hover::after {
  color: var(--accent);
  transform: translate(2px, -2px);
}

.contact-link-value {
  margin-left: auto;
}

.contact-link-row[hidden]::after {
  display: none;
}

.footer-social {
  flex-wrap: wrap;
}

.footer-social a:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.footer-social a {
  transition: color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), background var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
}

/* Phones: keep the portrait's frame inside the screen */
@media (max-width: 768px) {
  .hero-visual::before {
    inset: -8px;
  }
}