/* ════════════════════════════════════════════════
   PORTFOLIO — Amir Tashkentov
   Palette:
     --bg:        #0E0E0E  (near-black)
     --bg-2:      #161616  (card surface)
     --bg-3:      #1E1E1E  (subtle raise)
     --border:    #2A2A2A
     --text:      #F0EDE8  (warm white)
     --muted:     #888880
     --accent:    #E8FF47  (acid yellow-green)
     --accent-2:  #C8DF3A  (darker accent)
   Fonts: Syne (display), DM Mono (code), DM Sans (body)
════════════════════════════════════════════════ */

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

:root {
  --bg: #0E0E0E;
  --bg-2: #161616;
  --bg-3: #1E1E1E;
  --border: #2A2A2A;
  --text: #F0EDE8;
  --muted: #888880;
  --accent: #E8FF47;
  --accent-2: #C8DF3A;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'DM Sans', sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --container: 1140px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

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

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

button {
  font-family: inherit;
  cursor: none;
}

.container {
  width: min(var(--container), 100% - 3rem);
  margin-inline: auto;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.78em;
  letter-spacing: 0.04em;
}

/* ── Custom Cursor ────────────────────────────── */
.cursor {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width .2s var(--ease-out), height .2s var(--ease-out), background .2s;
  mix-blend-mode: difference;
}

.cursor-follower {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform .12s linear, width .2s var(--ease-out), height .2s var(--ease-out), opacity .2s, border-color .2s;
  opacity: 0.6;
}

body:has(.cursor-hover) .cursor {
  width: 48px;
  height: 48px;
  background: transparent;
  border: 1.5px solid var(--accent);
}

body:has(.cursor-hover) .cursor-follower {
  opacity: 0;
}

/* ── Scroll Reveal Utility ────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out) var(--delay, 0s),
    transform 0.7s var(--ease-out) var(--delay, 0s);
}

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

/* ── Buttons ──────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  transition: all .25s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--accent);
  color: #0E0E0E;
  border-color: var(--accent);
}

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

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

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

.btn--full {
  width: 100%;
  justify-content: center;
}

/* ── Navigation ───────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 2rem;
  transition: background .3s, backdrop-filter .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(14, 14, 14, 0.85);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav__inner {
  max-width: var(--container);
  margin: auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .04em;
}

.nav__links {
  display: flex;
  gap: 2rem;
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: .06em;
  position: relative;
  transition: color .2s;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease-out);
}

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

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}

.nav__burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: all .3s var(--ease-out);
}

.nav__burger.open span:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
}

.nav__burger.open span:nth-child(2) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
}

.nav__mobile {
  display: none;
  flex-direction: column;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  background: rgba(14, 14, 14, 0.96);
  backdrop-filter: blur(20px);
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile-link {
  padding: .75rem 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--muted);
  transition: color .2s;
}

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

/* ── Section Shared ───────────────────────────── */
.section {
  padding: 7rem 0;
}

.section-label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 2rem;
  letter-spacing: -.02em;
}

.section-title em {
  font-style: normal;
  color: var(--accent);
}

/* ── Hero ─────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 7rem 0 4rem;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: .35;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 30%, transparent 100%);
}

.hero__content {
  width: min(var(--container), 100% - 3rem);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--muted);
  letter-spacing: .08em;
  margin-bottom: 1.5rem;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 99px;
}

.dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2.5s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: .5;
    transform: scale(.7);
  }
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
}

.hero__name em {
  font-style: normal;
  color: var(--accent);
  -webkit-text-stroke: 2px var(--accent);
}

.hero__role {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--muted);
  margin-bottom: 1.25rem;
  min-height: 2em;
}

.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {

  0%,
  100% {
    opacity: 1
  }

  50% {
    opacity: 0
  }
}

.hero__sub {
  max-width: 500px;
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.hero__sub strong {
  color: var(--text);
  font-weight: 400;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

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

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 1;
    transform: scaleY(1);
  }

  50% {
    opacity: .4;
    transform: scaleY(.6);
  }
}

.hero__scroll-hint span {
  font-family: var(--font-mono);
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .1em;
}

/* Floating badges */
.hero__badge {
  position: absolute;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-2);
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--muted);
  z-index: 1;
  animation: float 4s ease-in-out infinite;
}

.hero__badge--1 {
  right: 8%;
  top: 28%;
  animation-delay: 0s;
}

.hero__badge--2 {
  right: 5%;
  top: 45%;
  animation-delay: .8s;
}

.hero__badge--3 {
  right: 11%;
  top: 61%;
  animation-delay: 1.6s;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* ── About ────────────────────────────────────── */
.about {
  background: var(--bg);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 4rem;
  align-items: start;
}

.about__text p {
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.about__text p strong {
  color: var(--text);
  font-weight: 500;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: .25rem;
}

.stat__label {
  font-size: .82rem;
  color: var(--muted);
  line-height: 1.4;
}

.about__card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about__photo-frame {
  aspect-ratio: 1;
  background: var(--bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
}

.about__photo-placeholder {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent);
  opacity: .3;
}

.about__meta {
  padding: 1.25rem;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .84rem;
}

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

.meta-key {
  color: var(--muted);
}

.meta-val {
  color: var(--text);
}

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

/* ── Skills ───────────────────────────────────── */
.skills {
  background: var(--bg-2);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.skill-category {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.skill-category__title {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.skill-bars {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.skill-bar__info {
  display: flex;
  justify-content: space-between;
  font-size: .84rem;
  color: var(--muted);
  margin-bottom: .4rem;
}

.skill-pct {
  color: var(--accent);
}

.skill-bar__track {
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.skill-bar__fill {
  height: 100%;
  background: var(--accent);
  border-radius: 99px;
  width: 0;
  transition: width 1.2s var(--ease-out);
}

.tech-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.tech-pill {
  padding: 6px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--muted);
  transition: border-color .2s, color .2s;
}

.tech-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tech-pill.accent {
  border-color: rgba(232, 255, 71, .3);
  color: var(--accent);
}

/* ── Projects ─────────────────────────────────── */
.projects {
  background: var(--bg);
}

.filter-bar {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.filter-btn {
  padding: 7px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--muted);
  letter-spacing: .04em;
  transition: all .2s;
}

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

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #0E0E0E;
}

.sort-bar {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 2.5rem;
}

.sort-label {
  color: var(--muted);
}

.sort-btn {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--muted);
  letter-spacing: .04em;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}

.sort-btn.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.sort-btn:hover {
  color: var(--text);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color .25s, transform .25s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease-out);
}

.project-card:hover {
  border-color: rgba(232, 255, 71, .3);
  transform: translateY(-4px);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card.featured {
  border-color: rgba(232, 255, 71, .25);
}

.project-card.featured::before {
  transform: scaleX(1);
}

.project-card.hidden {
  display: none;
}

.project-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.project-card__num {
  color: var(--muted);
  font-size: .72rem;
}

.project-card__tags {
  display: flex;
  gap: .35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.ptag {
  font-family: var(--font-mono);
  font-size: .64rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-3);
  color: var(--muted);
  border: 1px solid var(--border);
}

.ptag.accent {
  background: rgba(232, 255, 71, .1);
  color: var(--accent);
  border-color: rgba(232, 255, 71, .3);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

.project-card__desc {
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
}

.project-card__highlights {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}

.project-card__highlights span {
  font-family: var(--font-mono);
  font-size: .64rem;
  color: var(--muted);
  padding: 3px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.project-card__footer {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding-top: .75rem;
  border-top: 1px solid var(--border);
}

.project-link {
  font-size: .82rem;
  color: var(--muted);
  transition: color .2s;
}

.project-link:first-child {
  color: var(--accent);
}

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

.empty-state {
  text-align: center;
  padding: 4rem;
  color: var(--muted);
}

/* ── Contact ──────────────────────────────────── */
.contact {
  background: var(--bg-2);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact__left p {
  color: var(--muted);
  margin-bottom: 2.5rem;
  max-width: 380px;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__social {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: .9rem;
  color: var(--muted);
  padding: 1rem 1.25rem;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color .2s, color .2s, transform .2s var(--ease-out);
}

.contact__social:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateX(6px);
}

.contact__social .mono {
  color: var(--accent);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 300;
  transition: border-color .2s, background .2s;
  outline: none;
  resize: none;
}

.form-input::placeholder {
  color: var(--muted);
  opacity: .5;
}

.form-input:focus {
  border-color: var(--accent);
  background: var(--bg-2);
}

.form-input.error {
  border-color: #FF5A5A;
}

.form-error {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: #FF5A5A;
  min-height: 1em;
}

.form-success {
  text-align: center;
  padding: 1rem;
  background: rgba(232, 255, 71, .08);
  border: 1px solid rgba(232, 255, 71, .3);
  border-radius: var(--radius-md);
  font-size: .88rem;
  color: var(--accent);
}

/* ── Footer ───────────────────────────────────── */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__copy,
.footer__built {
  font-size: .72rem;
  color: var(--muted);
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 1024px) {
  .about__grid {
    grid-template-columns: 1fr;
  }

  .about__card {
    max-width: 340px;
  }

  .skills__grid {
    grid-template-columns: 1fr 1fr;
  }

  .projects__grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero__badge {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  .skills__grid {
    grid-template-columns: 1fr;
  }

  .projects__grid {
    grid-template-columns: 1fr;
  }

  .about__stats {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .footer__inner {
    flex-direction: column;
    gap: .5rem;
    text-align: center;
  }

  .hero__name {
    font-size: clamp(3.2rem, 15vw, 7rem);
  }
}

@media (max-width: 480px) {
  .about__stats {
    grid-template-columns: 1fr;
  }

  .hero__cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ── Cursor none on touch ─────────────────────── */
@media (hover: none) {

  .cursor,
  .cursor-follower {
    display: none;
  }

  body {
    cursor: auto;
  }

  button {
    cursor: pointer;
  }
}