/* --------------------------------------------------------------------------
   Zain Waheed — Portfolio
   Minimal B&W + muted sage accent
   -------------------------------------------------------------------------- */

:root {
  --bg: #fafafa;
  --bg-elevated: #ffffff;
  --text: #111111;
  --text-muted: #5c5c5c;
  --border: rgba(17, 17, 17, 0.08);
  --accent: #7d8f7a;
  --accent-soft: rgba(125, 143, 122, 0.15);
  --beige: #e8e0d5;
  --shadow: rgba(17, 17, 17, 0.06);
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --header-h: 72px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.45s var(--ease-out);
}

[data-theme="dark"] {
  --bg: #0d0d0d;
  --bg-elevated: #161616;
  --text: #f5f5f5;
  --text-muted: #a3a3a3;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #9cb396;
  --accent-soft: rgba(156, 179, 150, 0.18);
  --beige: #2a2620;
  --shadow: rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  opacity: 0;
  transition: opacity 0.6s var(--ease-out);
}

body.is-loaded {
  opacity: 1;
}

body.theme-transitioning * {
  transition:
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition) !important;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

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

/* Subtle cursor glow (desktop) */
.cursor-glow {
  display: none;
  pointer-events: none;
  position: fixed;
  width: 280px;
  height: 280px;
  margin: -140px 0 0 -140px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    var(--accent-soft) 0%,
    transparent 70%
  );
  z-index: 0;
  transition: opacity 0.3s ease;
  opacity: 0.6;
}

@media (hover: hover) and (pointer: fine) {
  body.has-cursor-glow .cursor-glow {
    display: block;
  }
}

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

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.container--narrow {
  max-width: 720px;
}

.section {
  position: relative;
  padding: clamp(4rem, 12vw, 7rem) 0;
  z-index: 1;
}

.section--muted {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.section--about {
  padding-top: clamp(5rem, 14vw, 8rem);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  color: var(--text);
}

.section__title--center {
  text-align: center;
  margin-bottom: 3rem;
}

.section__lead {
  margin: 0;
  color: var(--text-muted);
  font-weight: 300;
  max-width: 52ch;
}

.grid-2 {
  display: grid;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}

@media (min-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* --------------------------------------------------------------------------
   Header / Nav
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 clamp(1rem, 4vw, 2rem);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -0.04em;
  padding: 0.5rem 0;
  color: var(--text);
}

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

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
  justify-content: center;
}

.nav__link {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.35rem 0;
  position: relative;
  transition: color 0.25s ease;
}

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

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--text);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__link.is-active {
  color: var(--text);
}

.nav__link.is-active::after {
  transform: scaleX(1);
}

/* Mobile menu */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text);
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav.is-open .nav__toggle span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav.is-open .nav__toggle span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

@media (max-width: 820px) {
  .nav__toggle {
    display: flex;
    order: 2;
  }

  .theme-toggle {
    order: 3;
  }

  .nav__list {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1.5rem 1.5rem 2rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    gap: 0;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 0.3s ease,
      transform 0.3s var(--ease-out),
      visibility 0.3s;
  }

  .nav.is-open .nav__list {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav__link {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav__link::after {
    display: none;
  }
}

/* Theme toggle */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition:
    border-color 0.25s ease,
    transform 0.2s ease;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

.theme-toggle__icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  position: absolute;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.theme-toggle__icon--sun {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  opacity: 0;
  transform: scale(0.5);
}

.theme-toggle__icon--moon {
  box-shadow: inset -4px -2px 0 0 #e5e5e5;
  background: #2d2d2d;
  opacity: 1;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 1;
  transform: scale(1);
}

[data-theme="dark"] .theme-toggle__icon--moon {
  opacity: 0;
  transform: scale(0.5);
}

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

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

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

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
}

.hero__orb--1 {
  width: min(55vw, 420px);
  height: min(55vw, 420px);
  background: var(--beige);
  top: 10%;
  right: 15%;
}

.hero__orb--2 {
  width: min(45vw, 360px);
  height: min(45vw, 360px);
  background: var(--accent-soft);
  bottom: 15%;
  left: 10%;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, black 20%, transparent 100%);
}

.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 920px;
}

.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.75rem, 10vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 0 0 1rem;
  color: var(--text);
}

.hero__subtitle {
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  font-weight: 300;
  color: var(--text-muted);
  margin: 0 0 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition:
    background 0.35s var(--ease-out),
    color 0.35s var(--ease-out),
    border-color 0.35s ease,
    transform 0.25s ease;
}

.btn--primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

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

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.hero__scroll:hover {
  opacity: 1;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-hint 2s ease-in-out infinite;
}

@keyframes scroll-hint {
  0%,
  100% {
    transform: scaleY(0.6);
    opacity: 0.4;
  }
  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

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

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

.about__frame {
  position: relative;
  aspect-ratio: 4 / 5;
  max-height: 420px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

.about__mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 1;
  color: color-mix(in srgb, var(--text) 82%, var(--accent));
  opacity: 0.9;
}

.about__mark svg {
  display: block;
  filter: drop-shadow(0 20px 60px var(--shadow));
}

.about__tag {
  position: relative;
  z-index: 2;
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Timeline
   -------------------------------------------------------------------------- */

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 640px;
  margin-inline: auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
}

.timeline__item {
  position: relative;
  padding-left: 2.5rem;
  padding-bottom: 2.5rem;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -5px;
  top: 0.35rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.timeline__card {
  padding: 1.5rem 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.timeline__card:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  box-shadow: 0 12px 40px var(--shadow);
}

.timeline__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.35rem;
}

.timeline__heading {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  margin: 0;
  letter-spacing: -0.02em;
}

.timeline__year {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.timeline__place {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Experience card
   -------------------------------------------------------------------------- */

.card--experience {
  padding: 2rem 2.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  box-shadow: 0 24px 60px var(--shadow);
}

.card__text {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.0625rem;
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   Work / Filters / Gallery
   -------------------------------------------------------------------------- */

.section--work {
  padding-bottom: clamp(5rem, 14vw, 9rem);
}

.work__header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 3rem;
}

.work__subtitle {
  margin: 0 0 2rem;
  color: var(--text-muted);
  font-weight: 300;
  font-size: 1.0625rem;
}

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

.work-group {
  padding-top: clamp(2.5rem, 6vw, 3.75rem);
  margin-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--border);
}

.work-group:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.work-group__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.8vw, 1.5rem);
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  text-align: center;
}

.work-group__intro {
  margin: 0 auto 2rem;
  max-width: 42ch;
  text-align: center;
  color: var(--text-muted);
  font-weight: 300;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.gallery {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .gallery--featured {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .gallery--featured {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery__item {
  opacity: 1;
  transform: scale(1);
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}

.gallery__link {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  height: 100%;
  transition:
    border-color 0.35s ease,
    box-shadow 0.35s ease,
    transform 0.45s var(--ease-out);
}

.gallery__link:hover {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  box-shadow: 0 20px 50px var(--shadow);
  transform: translateY(-4px);
}

.gallery__media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg);
}

.gallery__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.65s var(--ease-out);
}

.gallery__link:hover .gallery__media img {
  transform: scale(1.06);
}

.gallery__caption {
  padding: 1.1rem 1.25rem 1.35rem;
}

.gallery__label {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.gallery__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  margin: 0.35rem 0 0;
  letter-spacing: -0.02em;
}

.gallery__detail {
  display: none;
}

/* --------------------------------------------------------------------------
   Work modal (full design + description)
   -------------------------------------------------------------------------- */

body.modal-open {
  overflow: hidden;
}

.work-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 0;
}

.work-modal[hidden] {
  display: none;
}

.work-modal__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--text) 45%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: pointer;
}

.work-modal__panel {
  position: relative;
  z-index: 1;
  width: min(1080px, 100%);
  max-height: 100vh;
  max-height: 100dvh;
  margin: auto;
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: 0 40px 100px var(--shadow);
  animation: modal-in 0.45s var(--ease-out) both;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

.work-modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.2s ease;
}

.work-modal__close:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

.work-modal__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  overflow: auto;
  max-height: min(100vh, 100dvh);
}

@media (min-width: 880px) {
  .work-modal__layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    max-height: min(92vh, 92dvh);
  }
}

.work-modal__figure {
  position: relative;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  max-height: min(52vh, 52dvh);
}

@media (min-width: 880px) {
  .work-modal__figure {
    border-bottom: none;
    border-right: 1px solid var(--border);
    max-height: none;
    min-height: 0;
  }
}

.work-modal__img {
  width: 100%;
  height: auto;
  max-height: min(52vh, 52dvh);
  object-fit: contain;
  display: block;
}

@media (min-width: 880px) {
  .work-modal__img {
    max-height: min(88vh, 88dvh);
    width: auto;
    max-width: 100%;
  }
}

.work-modal__body {
  padding: clamp(1.5rem, 4vw, 2.25rem);
  padding-top: clamp(2.5rem, 5vw, 3rem);
  overflow: auto;
}

.work-modal__label {
  margin: 0 0 0.35rem;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.work-modal__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
  line-height: 1.2;
}

.work-modal__copy {
  color: var(--text-muted);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.75;
}

.work-modal__copy p {
  margin: 0 0 1rem;
}

.work-modal__copy p:last-child {
  margin-bottom: 0;
}

.work-modal__copy .gallery__tools {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9375rem;
}

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

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
}

.reveal--delay {
  transition-delay: 0.12s;
}

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

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

.footer {
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  text-align: center;
}

.footer__thanks {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
}

.footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.footer__social a {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.25s ease;
}

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

.footer__email {
  font-size: 0.9375rem;
  color: var(--text);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease;
}

.footer__email:hover {
  border-bottom-color: var(--accent);
}