/* ── CSS Variables ── */
:root {
  --primary:    #a78bfa;
  --secondary:  #34d399;
  --tertiary:   #fb923c;
  --quaternary: #f472b6;

  --bg:           #0a0a0a;
  --bg-alt:       #141414;
  --bg-card:      #111;
  --border:       #1e1e1e;
  --border-hover: #333;
  --text:         #fff;
  --text-sub:     #aaa;
  --text-muted:   #666;
  --nav-bg:       #0a0a0a;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f2f2f2;
    --bg-alt: #ffffff;
    --bg-card: #ffffff;
    --border: #bbb;
    --border-hover: #888;
    --text: #111;
    --text-sub: #444;
    --text-muted: #777;
    --nav-bg: #ffffff;
    --section-divider: #ddd;
    --card-shadow: 0 1px 4px rgba(0,0,0,.1);
  }
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.3s, color 0.3s;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: padding 0.3s, background 0.3s, border-color 0.3s;
}
.nav.mini {
  padding: 12px 32px;
}
.nav .nav-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav .nav-logo span {
  color: var(--primary);
}
.nav .nav-links {
  display: flex;
  gap: 24px;
}
.nav .nav-links a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav .nav-links a:hover {
  color: var(--text);
}

/* HERO */
.hero {
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #1a0f2e 0%, #0a0a0a 100%);
}
@media (prefers-color-scheme: light) {
  .hero {
    background: linear-gradient(180deg, #ede9fe 0%, #f2f2f2 100%);
  }
}
.hero .hero-bg {
  position: absolute;
  inset: -60px;
  transform: rotate(-10deg);
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  overflow: hidden;
}
.hero .hrow {
  display: flex;
  white-space: nowrap;
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  opacity: 0.04;
}
.hero .hrow.l {
  animation: hl 16s linear infinite;
}
.hero .hrow.r {
  animation: hr 20s linear infinite;
}
@media (prefers-color-scheme: light) {
  .hero .hrow {
    opacity: 0.15;
  }
}
@keyframes hl {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}
@keyframes hr {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0);
  }
}
.hero .hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 2rem;
}
.hero .hero-inner .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  padding: 5px 14px;
  border-radius: 99px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  letter-spacing: 0.06em;
}
.hero .hero-inner .hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.7);
  }
}
.hero .hero-inner .usp-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border-radius: 99px;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, rgba(251, 146, 60, 0.12), rgba(167, 139, 250, 0.12));
  border: 1px solid rgba(167, 139, 250, 0.35);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.hero .hero-inner .usp-badge .usp-side {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero .hero-inner .usp-badge .usp-side.biz {
  color: var(--tertiary);
}
.hero .hero-inner .usp-badge .usp-side.it {
  color: var(--primary);
}
.hero .hero-inner .usp-badge .usp-x {
  color: var(--text-muted);
  font-weight: 400;
}
.hero .hero-inner h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}
.hero .hero-inner h1 .c1 {
  color: var(--primary);
}
.hero .hero-inner h1 .c2 {
  color: var(--secondary);
}
.hero .hero-inner h1 .c3 {
  color: var(--tertiary);
}
@media (prefers-color-scheme: light) {
  .hero .hero-inner h1 .c1 {
    color: #7c3aed;
  }
  .hero .hero-inner h1 .c2 {
    color: #059669;
  }
  .hero .hero-inner h1 .c3 {
    color: #d97706;
  }
}
.hero .hero-inner .hero-sub {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.7;
  max-width: 400px;
  margin: 0 auto 2rem;
}
.hero .hero-inner .hero-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .hero-inner .hero-btns .btn-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
}
.hero .hero-inner .hero-btns .btn-main:hover {
  opacity: 0.85;
}
.hero .hero-inner .hero-btns .btn-sub {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.hero .hero-inner .hero-btns .btn-sub:hover {
  border-color: var(--border-hover);
}

/* SECTION */
.section {
  padding: 5rem 2rem;
  border-top: 1px solid transparent;
}
.section > * {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.section-alt {
  background: var(--bg-alt);
}
@media (prefers-color-scheme: light) {
  .section {
    border-top-color: var(--section-divider);
  }
}
.section .sec-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section .sec-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.section .sec-heading {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* AXIS */
#axis {
  padding: 5rem 2rem;
  text-align: center;
  background: var(--bg-alt);
}

#axis .sec-eyebrow {
  margin-bottom: 1.25rem;
}

.axis-tagline {
  font-size: clamp(32px, 6vw, 60px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  text-align: center;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .1em;
}

.at-biz { color: var(--tertiary); }
.at-x   { color: var(--text-muted); font-weight: 400; font-size: .6em; line-height: 1.4; }
.at-eng { color: var(--primary); }


/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.about-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--border);
  object-fit: cover;
  flex-shrink: 0;
}

.about-text {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* ABOUT PILLS */
.about-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.about-pills .pill {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 99px;
  border: 1px solid var(--border);
  color: var(--text-sub);
}
.about-pills .pill.purple {
  border-color: rgba(167, 139, 250, 0.4);
  color: var(--primary);
}
.about-pills .pill.green {
  border-color: rgba(52, 211, 153, 0.4);
  color: var(--secondary);
}
.about-pills .pill.orange {
  border-color: rgba(251, 146, 60, 0.4);
  color: var(--tertiary);
}
.about-pills .pill.pink {
  border-color: rgba(244, 114, 182, 0.4);
  color: var(--quaternary);
}

/* SKILL LEGEND */
.skill-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 1.25rem;
}

.skill-legend b { color: var(--text); }
.sl-sep { color: var(--border-hover); }

/* SKILLS */
.skill-carousel {
  overflow: hidden;
  position: relative;
  padding: 1.5rem 0 2rem;
  max-width: none !important;
  margin: 0 -2rem;
  cursor: grab;
  user-select: none;
}

.sc-track {
  display: flex;
  gap: 14px;
  padding: 0.5rem 2rem;
  width: max-content;
  will-change: transform;
}

.skill-chip {
  flex-shrink: 0;
  width: 170px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--c, var(--primary));
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 1.2rem 1.1rem;
  transition: border-color .15s, box-shadow .15s;
  box-shadow: var(--card-shadow, none);
  will-change: transform;
}

.skill-chip i {
  font-size: 32px;
  line-height: 1;
}

.sc-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.sc-level {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .05em;
}

.sc-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}

.skill-chip:hover {
  border-color: var(--c, var(--primary));
  box-shadow: 0 8px 28px rgba(0,0,0,.25);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s, transform 0.6s;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* WORKS */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
  align-items: stretch;
}
.works-grid .work-card {
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.25s, border-color 0.2s;
  cursor: pointer;
  box-shadow: var(--card-shadow, none);
}
.works-grid .work-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}
.works-grid .work-card .work-thumb {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}
.works-grid .work-card .work-thumb.t1 {
  background: #1a0f2e;
  color: var(--primary);
}
.works-grid .work-card .work-thumb.t2 {
  background: #0a1f18;
  color: var(--secondary);
}
.works-grid .work-card .work-thumb.t3 {
  background: #1f1008;
  color: var(--tertiary);
}
.works-grid .work-card .work-info {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  gap: 6px;
  background: var(--bg-card);
  flex: 1;
}
.works-grid .work-card .work-info h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.works-grid .work-card .work-info p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}
.works-grid .work-card .work-info .work-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 2px;
}
.works-grid .work-card .work-info .work-tags .wtag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--border);
  color: var(--text-muted);
}
.works-grid .work-card .work-info .work-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
  padding-top: 6px;
}
.works-grid .work-card .work-info .work-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.works-grid .work-card .work-info .work-link:hover {
  color: var(--text);
}
.works-grid .work-card .work-info .work-link.primary {
  color: var(--secondary);
}
.works-grid .work-card .work-info .work-link.is-private {
  color: var(--text-muted);
  opacity: 0.7;
  cursor: default;
}
.works-grid .work-card .work-info .work-link.primary:hover {
  color: var(--text);
}

/* featured work */
.works-grid .work-card.is-featured {
  grid-column: 1 / -1;
  flex-direction: row;
}
.works-grid .work-card.is-featured .work-thumb {
  height: auto;
  flex: 0 0 34%;
  font-size: 40px;
}
.works-grid .work-card .work-info .work-badge {
  align-self: flex-start;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  color: var(--secondary);
  border: 1px solid var(--secondary);
}

@media (prefers-color-scheme: light) {
  .works-grid .work-card .work-thumb.t1 { background: #ede9fe; color: #7c3aed; }
  .works-grid .work-card .work-thumb.t2 { background: #d1fae5; color: #059669; }
  .works-grid .work-card .work-thumb.t3 { background: #ffedd5; color: #d97706; }
}

@media (max-width: 768px) {
  .works-grid .work-card.is-featured {
    flex-direction: column;
  }
  .works-grid .work-card.is-featured .work-thumb {
    height: 120px;
    flex: none;
  }
}

/* CONTACT */
.contact-wrap {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}
.contact-wrap p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 2rem;
  margin-top: 0.75rem;
}
.contact-wrap .contact-links {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.contact-wrap .contact-links .c-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text-sub);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  background: transparent;
}
.contact-wrap .contact-links .c-link:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

/* CTF TERMINAL */
#ctf {
  padding: 4rem 2rem;
  display: flex;
  justify-content: center;
  background: var(--bg);
}

.terminal {
  width: 100%;
  max-width: 720px;
  background: #0d1a0d;
  border: 1px solid #1a3a1a;
  border-radius: 12px;
  overflow: hidden;
  font-family: 'Courier New', Courier, monospace;
  box-shadow: 0 0 40px rgba(0, 255, 0, 0.06);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #0a130a;
  border-bottom: 1px solid #1a3a1a;
}

.term-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.td-red    { background: #ff5f57; }
.td-yellow { background: #febc2e; }
.td-green  { background: #28c840; }

.term-title {
  margin-left: 8px;
  font-size: 12px;
  color: #2d6a2d;
  font-family: 'Courier New', Courier, monospace;
}

.term-body {
  padding: 1.25rem 1.5rem;
  max-height: 420px;
  overflow-y: auto;
  cursor: text;
  scroll-behavior: smooth;
}

.term-body::-webkit-scrollbar { width: 4px; }
.term-body::-webkit-scrollbar-track { background: transparent; }
.term-body::-webkit-scrollbar-thumb { background: #1a3a1a; border-radius: 2px; }

.term-line {
  font-size: 13px;
  line-height: 1.7;
  color: #4ade80;
  white-space: pre;
}

.tc-dim   { color: #2d6a2d; }
.tc-green { color: #4ade80; }
.tc-error { color: #f87171; }
.tc-win   { color: #86efac; text-shadow: 0 0 8px rgba(134,239,172,.6); }

.term-input-row {
  display: flex;
  align-items: center;
  margin-top: 4px;
}

.term-prompt {
  font-size: 13px;
  color: #4ade80;
  white-space: nowrap;
  flex-shrink: 0;
}

.term-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #4ade80;
  font-family: 'Courier New', Courier, monospace;
  font-size: 13px;
  caret-color: #4ade80;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* FOOTER */
.footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}

/* MODAL */
.modal-ov {
  display: none;
  min-height: 400px;
  background: rgba(0, 0, 0, 0.8);
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 1rem;
}
.modal-ov.open {
  display: flex;
}
.modal-ov .modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}
.modal-ov .modal-box .modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.modal-ov .modal-box .modal-head h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.modal-ov .modal-box .modal-head .modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}
.modal-ov .modal-box .modal-thumb {
  height: 140px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 1rem;
}
.modal-ov .modal-box .modal-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.modal-ov .modal-box .modal-stack {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.modal-ov .modal-box .modal-stack .mstag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 99px;
  background: var(--border);
  color: var(--text-muted);
}

/* NAV HAMBURGER */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-sub);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Responsive */
@media (max-width: 1024px) {
  .skills-grid,
  .works-grid {
    max-width: 100%;
  }
}
@media (max-width: 768px) {
  .nav {
    padding: 15px 20px;
    flex-wrap: wrap;
  }
  .nav.mini {
    padding: 10px 20px;
  }
  .nav .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }
  .nav .nav-links.open {
    display: flex;
  }
  .nav .nav-links a {
    font-size: 14px;
    padding: 10px 0;
    border-top: 1px solid var(--border);
  }
  .nav-hamburger {
    display: flex;
  }
  .hero {
    min-height: 350px;
  }
  .hero .hero-inner {
    padding: 2rem 1rem;
  }
  .hero .hero-inner h1 {
    font-size: 36px;
  }
  .hero .hero-inner .hero-sub {
    font-size: 14px;
    max-width: 300px;
  }
  .hero .hero-inner .hero-btns {
    flex-direction: column;
    align-items: center;
  }
  .hero .hero-inner .hero-btns .btn-main, .hero .hero-inner .hero-btns .btn-sub {
    width: 200px;
    justify-content: center;
  }
  .section {
    padding: 3rem 1.25rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-grid .about-avatar {
    margin: 0 auto;
  }
  .works-grid {
    grid-template-columns: 1fr;
  }
  .contact-links {
    flex-direction: column;
    align-items: center;
  }
  .contact-links .c-link {
    width: 200px;
    justify-content: center;
  }
  .modal-box {
    padding: 1.5rem;
    max-width: 350px;
  }
}
@media (max-width: 400px) {
  .hero .hero-inner h1 {
    font-size: 28px;
  }
  .hero .hero-inner .hero-btns .btn-main, .hero .hero-inner .hero-btns .btn-sub {
    width: 100%;
    max-width: 260px;
  }
  .nav-logo {
    font-size: 15px;
  }
}