/* JaspersArt — styles.css */

/* tokens */
:root {
  --bg:          #080808;
  --fg:          #f0f0f0;
  --fg-dim:      #888;
  --fg-mute:     #757575;
  --border:      #1e1e1e;
  --border-mid:  #2e2e2e;
  --accent:      #e8e8e8;

  --font-display:    'Syne', sans-serif;
  --font-helvetica: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body:       'DM Sans', sans-serif;

  --nav-h: 72px;
  --max-w: 1280px;
  --gutter: clamp(24px, 5vw, 80px);
  --section-py: clamp(80px, 10vw, 160px);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in:  cubic-bezier(0.64, 0, 0.78, 0);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--bg);
}

body {
  font-family: var(--font-body);
  color: var(--fg);
  background: var(--bg);
  overflow-x: hidden;
  cursor: none;
}

.social-icons a { font-style: normal; 
  color: var(--fg);
  margin-left: 15px;
  transition: color 0.3s;
  font-size: 1.2rem;
}

.social-icons a:hover {
   color: var(--fg-dim); 
   transition: ease-out 0.3s;
  }


a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { background: none; border: none; cursor: none; font: inherit; }
img, video, canvas { display: block; max-width: 100%; }
em { font-style: italic; }

/* cursor */
.cursor,
.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

.cursor {
  width: 6px;
  height: 6px;
  background: var(--fg);
}

.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(240,240,240,0.4);
  transition: width 0.25s var(--ease-out),
              height 0.25s var(--ease-out),
              border-color 0.25s;
}

.cursor-ring.is-hovering {
  width: 56px;
  height: 56px;
  border-color: rgba(240,240,240,0.8);
}

/* reveal — used by all sections except hero */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out),
              transform 0.8s var(--ease-out);
}

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

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }

/* nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  transition: background 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(8,8,8,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-dim);
  transition: color 0.2s;
}

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

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

.lang-btn {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  border: 1px solid var(--border-mid);
  padding: 6px 14px;
  border-radius: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.lang-btn:hover {
  color: var(--fg);
  border-color: var(--fg-dim);
}

/* hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  padding: 0;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--fg);
  border-radius: 1px;
  transform-origin: center;
  transition: transform 0.35s var(--ease-out),
              opacity   0.25s,
              width     0.3s;
}

.nav-hamburger:hover span:nth-child(2) { width: 70%; }

.nav-hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.is-open span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav-hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.4s var(--ease-out),
              transform 0.4s var(--ease-out);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.mobile-menu-nav a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 10vw, 4rem);
  letter-spacing: -0.04em;
  color: var(--fg-dim);
  transition: color 0.2s;
  display: block;
  padding: 0.4rem 0;
}

.mobile-menu-nav a:hover { color: var(--fg); }

.mobile-menu-lang {
  margin-top: 2.5rem;
}

/* hero wrapper — gives scroll travel space */
.hero-wrapper {
  height: 230vh;
}

/* hero — sticky, stays visible while wrapper scrolls */
.hero {
  position: sticky;
  top: 0;
  height: 100dvh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-image: url('Asset/BG.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  --hero-overlay: 0;
}

/* dark gradient fades in via JS scroll progress */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(8,8,8,0.82) 0%,
    rgba(8,8,8,0.42) 55%,
    rgba(8,8,8,0.05) 100%
  );
  opacity: var(--hero-overlay);
  z-index: 0;
  pointer-events: none;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 var(--gutter);
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
}

/* hero text — starts hidden, JS drives reveal via scroll */
.hero-eyebrow,
.hero-sub,
.hero-cta {
  opacity: 0;
  transform: translateY(32px);
  will-change: opacity, transform;
}

/* title container stays visible; letter spans are the animated units */
.hero-title {
  opacity: 1 !important;
  transform: none !important;
}

/* each letter starts hidden, JS reveals them one by one */
.hero-letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(36px);
  will-change: opacity, transform;
}

.hero-eyebrow {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-helvetica);
  font-weight: 700;
  font-size: clamp(3.5rem, 9vw, 10rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  color: var(--fg);
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 300;
  line-height: 1.7;
  color: var(--fg-dim);
  max-width: 480px;
  margin-bottom: 3rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--fg-mute);
  padding-bottom: 6px;
  transition: gap 0.3s var(--ease-out), border-color 0.2s;
}

.hero-cta::after {
  transition: transform 0.3s var(--ease-out);
}

.hero-cta:hover {
  gap: 1.25rem;
  border-color: var(--fg);
}

.hero-cta:hover::after { transform: translateX(4px); }

/* scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  right: var(--gutter);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-mute);
  writing-mode: vertical-rl;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--fg-mute), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.15); }
}

/* section meta row */
.section-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  margin-bottom: 4rem;
}

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.section-num {
  font-family: var(--font-display);
  font-size: 0.90rem;
  color: var(--fg-mute);
  letter-spacing: 0.1em;
}

/* about */
.about {
  padding: var(--section-py) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
}

.about-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 780px;
  margin-bottom: 3rem;
}

.about-heading em {
  color: var(--fg-dim);
  font-style: italic;
}

.about-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 860px;
  margin-bottom: 4rem;
}

.about-text p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--fg-dim);
  font-weight: 300;
}

.about-skills {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}

.skill {
  padding: 2rem 0 2rem 0;
  border-right: 1px solid var(--border);
  padding-right: 2rem;
  margin-right: 2rem;
}

.skill:last-child {
  border-right: none;
  padding-right: 0;
  margin-right: 0;
}

.skill-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

.skill-tags {
  font-size: 0.82rem;
  color: var(--fg-mute);
  line-height: 1.6;
}

/* projects */
.projects {
  padding: var(--section-py) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.projects .section-meta { border-top: none; }

.projects-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 4rem;
}

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

.project-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  transition: border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.project-item:last-child { border-bottom: 1px solid var(--border); }

.project-item:hover { border-color: var(--border-mid); }

/* abstract visual thumbnail per project */
.project-item-visual {
  position: relative;
  width: 180px;
  height: 130px;
  overflow: hidden;
  border: 1px solid var(--border);
  flex-shrink: 0;
  transition: border-color 0.3s;
}

.project-item:hover .project-item-visual { border-color: var(--border-mid); }

/* project 01: Design Solutions — overlapping geometric shapes */
.pi-visual--01 {
  display: flex;
  align-items: center;
  justify-content: center;
}

.pi-visual--01 span {
  position: absolute;
  border: 1px solid var(--border-mid);
}

.pi-visual--01 span:nth-child(1) {
  width: 72px; height: 52px;
  animation: designFloat 5s ease-in-out infinite;
}

.pi-visual--01 span:nth-child(2) {
  width: 52px; height: 72px;
  border-color: var(--fg-mute);
  opacity: 0.5;
  animation: designFloat 5s ease-in-out infinite reverse;
}

@keyframes designFloat {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(12px, -10px); }
}

/* project 02: Web Development — network topology */
.pi-visual--02 {
  position: relative;
}

/* connecting lines */
.pi-visual--02::before,
.pi-visual--02::after {
  content: '';
  position: absolute;
  height: 1px;
  background: var(--border-mid);
  animation: netLine 3s ease-in-out infinite;
}

.pi-visual--02::before {
  width: 128px;
  top: 29px; left: 29px;
  transform: rotate(31deg);
  transform-origin: left center;
}

.pi-visual--02::after {
  width: 128px;
  top: 26px; right: 29px;
  transform: rotate(149deg);
  transform-origin: right center;
  animation-delay: 1.5s;
}

@keyframes netLine {
  0%, 100% { opacity: 0.2; }
  50%       { opacity: 0.65; }
}

/* nodes */
.pi-visual--02 span {
  position: absolute;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--fg-mute);
  animation: netNode 3s ease-in-out infinite;
}

.pi-visual--02 span:nth-child(1) { top: 26px;    left: 26px;   animation-delay: 0s; }
.pi-visual--02 span:nth-child(2) { top: 23px;    right: 26px;  animation-delay: 0.6s; }
.pi-visual--02 span:nth-child(3) { top: 50%;     left: 50%;    transform: translate(-50%, -50%); animation-delay: 1.2s; }
.pi-visual--02 span:nth-child(4) { bottom: 23px; left: 28px;   animation-delay: 1.8s; }
.pi-visual--02 span:nth-child(5) { bottom: 21px; right: 26px;  animation-delay: 2.4s; }

@keyframes netNode {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(2); }
}

/* project 03: Desktop App/RPA — animated progress bars */
.pi-visual--03 {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: 20px 22px;
}

.pi-visual--03 span {
  height: 2px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.pi-visual--03 span::after {
  content: '';
  position: absolute;
  left: 0; top: 0;
  height: 100%;
  background: var(--fg-mute);
  animation: barFill 2.8s ease-in-out infinite;
}

.pi-visual--03 span:nth-child(1)::after { width: 75%; animation-delay: 0s; }
.pi-visual--03 span:nth-child(2)::after { width: 48%; animation-delay: 0.5s; }
.pi-visual--03 span:nth-child(3)::after { width: 88%; animation-delay: 1s; }

@keyframes barFill {
  0%      { transform: scaleX(0); transform-origin: left; }
  55%     { transform: scaleX(1); transform-origin: left; }
  55.01%  { transform: scaleX(1); transform-origin: right; }
  100%    { transform: scaleX(0); transform-origin: right; }
}

/* project 04: Etsy/E-commerce — product card grid */
.pi-visual--04 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  padding: 14px;
}

.pi-visual--04 span {
  background: var(--border);
  border-radius: 1px;
  animation: cardPulse 3.2s ease-in-out infinite;
}

.pi-visual--04 span:nth-child(1) { animation-delay: 0s; }
.pi-visual--04 span:nth-child(2) { animation-delay: 0.25s; }
.pi-visual--04 span:nth-child(3) { animation-delay: 0.5s; }
.pi-visual--04 span:nth-child(4) { animation-delay: 0.75s; }
.pi-visual--04 span:nth-child(5) { animation-delay: 1s; }
.pi-visual--04 span:nth-child(6) { animation-delay: 1.25s; }

@keyframes cardPulse {
  0%, 100% { background: var(--border); }
  50%       { background: var(--border-mid); }
}

.project-item-info {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 2rem;
  padding-left: 2.5rem;
}

.project-item-num {
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--fg-mute);
  letter-spacing: 0.1em;
}

.project-item-text h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
  transition: color 0.2s;
}

.project-item:hover .project-item-text h3 { color: var(--accent); }

.project-item-text p {
  font-size: 0.85rem;
  color: var(--fg-mute);
  line-height: 1.6;
  max-width: 420px;
}

.project-item-tags {
  font-size: 0.72rem;
  color: var(--fg-mute);
  letter-spacing: 0.05em;
  white-space: nowrap;
  text-align: right;
}

/* arrow appears on row hover */
.project-item-info::after {
  color: var(--fg-mute);
  font-size: 1.1rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.3s, transform 0.3s var(--ease-out);
}

.project-item:hover .project-item-info::after {
  opacity: 1;
  transform: translateX(0);
}

/* contact */
.contact {
  padding: var(--section-py) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.contact .section-meta { border-top: none; }

.contact-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.contact-heading em {
  color: var(--fg-dim);
  font-style: italic;
}

.contact-sub {
  font-size: 1rem;
  color: var(--fg-dim);
  font-weight: 300;
  margin-bottom: 2.5rem;
}

.contact-email {
  font-family: var(--font-display);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-mid);
  padding-bottom: 4px;
  transition: border-color 0.2s, color 0.2s;
}

.contact-email:hover {
  border-color: var(--fg-dim);
  color: var(--accent);
}

/* form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.form-group label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

.form-group input,
.form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-mid);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  padding: 0.75rem 0;
  outline: none;
  resize: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--fg-mute);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--fg-dim);
}

.form-submit {
  align-self: flex-start;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border-mid);
  padding: 14px 32px;
  border-radius: 2px;
  color: var(--fg);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.form-submit:hover {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.form-success {
  font-size: 0.85rem;
  color: var(--fg-dim);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s, transform 0.4s var(--ease-out);
  pointer-events: none;
}

.form-success.is-shown {
  opacity: 1;
  transform: translateY(0);
}

/* footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--fg-mute);
  letter-spacing: 0.05em;
}

/* responsive */
@media (max-width: 900px) {
  .about-text { grid-template-columns: 1fr; }
  .about-skills { grid-template-columns: 1fr; }
  .skill { border-right: none; padding-right: 0; margin-right: 0; border-bottom: 1px solid var(--border); }
  .skill:last-child { border-bottom: none; }

  .project-item { grid-template-columns: 1fr; gap: 1.5rem; }
  .project-item-visual { width: 100%; height: 100px; }
  .project-item-info { grid-template-columns: 40px 1fr; padding-left: 0; gap: 1rem; }
  .project-item-tags { display: none; }
  .project-item-info::after { display: none; }

  .contact-inner { grid-template-columns: 1fr; gap: 4rem; }
}

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
  .nav-links     { display: none; }

  .hero-wrapper { height: 195vh; }

  .hero-title { font-size: clamp(3rem, 14vw, 5.5rem); }
  .hero-sub   { font-size: 0.95rem; }

  .about-heading,
  .projects-heading,
  .contact-heading {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

}

@media (max-width: 480px) {
  .hero-wrapper { height: 185vh; }
  .hero-title  { font-size: clamp(2.5rem, 16vw, 4rem); }

  .project-item-info { grid-template-columns: 1fr; }
  .project-item-num  { display: none; }

  .footer { flex-direction: column; gap: 0.5rem; text-align: center; }
  .hero-letter { font-size: 56px; }
}

@media (max-width: 390px) {
  .hero-letter { font-size: 48px; }
}
@media (max-width: 344px) {
  .hero-letter { font-size: 45px; }
}