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

:root {
  --bg:          #060b14;
  --bg-alt:      #0a1120;
  --surface:     rgba(255,255,255,.04);
  --border:      rgba(0,229,255,.12);
  --cyan:        #00e5ff;
  --cyan-dim:    rgba(0,229,255,.15);
  --green:       #00ffa3;
  --text:        #c8d6e5;
  --text-muted:  #5a7184;
  --white:       #f0f8ff;
  --font-head:   'Syne', sans-serif;
  --font-mono:   'Space Mono', monospace;
  --radius:      14px;
  --nav-h:       70px;
  --trans:       .35s cubic-bezier(.4,0,.2,1);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  line-height: 1.7;
  overflow-x: hidden;
}

::selection { background: var(--cyan); color: var(--bg); }

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

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

/* ─────────────────────────────────────────────
   SCROLLBAR
───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 99px; }

/* ─────────────────────────────────────────────
   UTILITY
───────────────────────────────────────────── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.accent { color: var(--cyan); }

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.section  { padding: 110px 0; }
.section-alt { background: var(--bg-alt); }

/* ─────────────────────────────────────────────
   SECTION HEADERS
───────────────────────────────────────────── */
.section-header { margin-bottom: 60px; }

.section-tag {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  display: block;
  margin-bottom: 10px;
}

.section-header h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  left: 0; bottom: -8px;
  width: 60%; height: 3px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  border-radius: 2px;
}

/* ─────────────────────────────────────────────
   SCROLL REVEAL
───────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ─────────────────────────────────────────────
   BUTTONS
───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: transform var(--trans), box-shadow var(--trans), background var(--trans);
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--green));
  color: var(--bg);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,229,255,.35);
}

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 1.5px solid var(--cyan);
}
.btn-outline:hover {
  background: var(--cyan-dim);
  transform: translateY(-3px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: .78rem;
  background: var(--cyan-dim);
  color: var(--cyan);
  border: 1px solid var(--border);
}
.btn-sm:hover { background: var(--cyan); color: var(--bg); transform: translateY(-2px); }

.btn-outline-sm {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,.1);
}
.btn-outline-sm:hover { color: var(--white); border-color: var(--white); transform: translateY(-2px); }

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

/* ─────────────────────────────────────────────
   NAVBAR
───────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
  z-index: 999;
  transition: background var(--trans), border-bottom var(--trans), backdrop-filter var(--trans);
}

#navbar.scrolled {
  background: rgba(6,11,20,.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: .02em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 36px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--text-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--trans);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1.5px;
  background: var(--cyan);
  transition: width var(--trans);
}
.nav-link:hover, .nav-link.active { color: var(--cyan); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: all var(--trans);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─────────────────────────────────────────────
   HOME / HERO
───────────────────────────────────────────── */
#home {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#particles-js {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* diagonal accent line */
#home::before {
  content: '';
  position: absolute;
  top: -10%; right: -5%;
  width: 55vw; height: 80vh;
  background: radial-gradient(ellipse at 70% 30%, rgba(0,229,255,.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  animation: heroFadeIn .9s ease both;
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: none; }
}

.hero-greeting {
  font-size: .85rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}

.hero-name {
  font-family: var(--font-head);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 20px;
  background: linear-gradient(120deg, var(--white) 40%, var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-typed-wrap {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--text);
  margin-bottom: 24px;
  min-height: 2em;
}

#typed-output { color: var(--cyan); }

.typed-cursor {
  color: var(--cyan);
  animation: blink .7s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-bio {
  max-width: 600px;
  margin: 0 auto 36px;
  color: var(--text-muted);
  font-size: .93rem;
  line-height: 1.8;
}

.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }

.social-icons {
  display: flex;
  gap: 20px;
  justify-content: center;
}
.social-icons a {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--trans);
}
.social-icons a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0,229,255,.25);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(var(--cyan), transparent);
  animation: scrollPulse 1.6s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.3} 50%{opacity:1} }

/* ─────────────────────────────────────────────
   ABOUT
───────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: center;
}

.about-image-wrap { position: relative; }

.about-img-frame {
  width: 280px; height: 300px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  overflow: hidden;
  background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.about-img-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,255,.12), transparent);
}
.about-img-placeholder {
  font-size: 5rem;
  color: var(--cyan);
  opacity: .6;
}

.about-badge {
  position: absolute;
  bottom: -20px; right: -20px;
  width: 90px; height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--bg);
  font-family: var(--font-head);
  box-shadow: 0 8px 30px rgba(0,229,255,.4);
}
.badge-num  { font-size: 1.4rem; font-weight: 800; line-height: 1; }
.badge-label { font-size: .55rem; font-weight: 600; letter-spacing: .05em; }

.about-text p {
  color: var(--text);
  margin-bottom: 18px;
  font-size: .93rem;
}
.about-text strong { color: var(--white); }
.about-text em { color: var(--cyan); font-style: normal; }

.about-stats {
  display: flex;
  gap: 32px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--cyan);
}
.stat-label { font-size: .75rem; color: var(--text-muted); }

/* ─────────────────────────────────────────────
   SKILLS
───────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.skill-card {
  padding: 28px 24px;
  border-radius: var(--radius);
  text-align: center;
  transition: transform var(--trans), box-shadow var(--trans);
}
.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0,229,255,.12);
}

.skill-icon-wrap {
  width: 60px; height: 60px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  color: var(--icon-clr, var(--cyan));
  border: 1px solid rgba(255,255,255,.08);
  transition: transform var(--trans);
}
.skill-card:hover .skill-icon-wrap { transform: scale(1.12); }

.skill-card h3 {
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}

.skill-bar-wrap {
  width: 100%;
  height: 5px;
  background: rgba(255,255,255,.06);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 6px;
}
.skill-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  border-radius: 99px;
  transition: width 1.4s cubic-bezier(.4,0,.2,1);
}

.skill-pct {
  font-size: .72rem;
  color: var(--text-muted);
  letter-spacing: .05em;
}

/* ─────────────────────────────────────────────
   PROJECTS
───────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0,229,255,.12);
}

.project-img {
  height: 180px;
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
  color: var(--proj-clr, var(--cyan));
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0,0,0,.4), rgba(0,0,0,.1));
}
.proj-glow {
  position: absolute;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: var(--proj-clr, var(--cyan));
  opacity: .07;
  filter: blur(40px);
  transition: opacity var(--trans);
}
.project-card:hover .proj-glow { opacity: .18; }

.project-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.proj-tags {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.proj-tags span {
  font-size: .7rem;
  padding: 3px 10px;
  border-radius: 99px;
  background: var(--cyan-dim);
  color: var(--cyan);
  border: 1px solid rgba(0,229,255,.25);
  letter-spacing: .04em;
}

.project-body h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.project-body p {
  font-size: .83rem;
  color: var(--text-muted);
  flex: 1;
  margin-bottom: 20px;
  line-height: 1.75;
}

.project-links { display: flex; gap: 12px; flex-wrap: wrap; }

/* ─────────────────────────────────────────────
   RESUME
───────────────────────────────────────────── */
.resume-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}

.timeline { position: relative; padding-left: 24px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 0; bottom: 0;
  width: 1.5px;
  background: linear-gradient(var(--cyan), transparent);
}

.timeline-item { position: relative; margin-bottom: 36px; }

.tl-dot {
  position: absolute;
  left: -21px; top: 24px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: 2.5px solid var(--cyan);
  box-shadow: 0 0 12px rgba(0,229,255,.5);
}

.tl-content {
  padding: 22px 24px;
  border-radius: var(--radius);
  transition: transform var(--trans);
}
.tl-content:hover { transform: translateX(6px); }

.tl-date {
  font-size: .72rem;
  color: var(--cyan);
  letter-spacing: .08em;
  display: block;
  margin-bottom: 6px;
}

.tl-content h4 {
  font-family: var(--font-head);
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.tl-org {
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.tl-content p { font-size: .83rem; color: var(--text-muted); }

.resume-cta-card {
  padding: 40px 32px;
  border-radius: var(--radius);
  text-align: center;
  position: sticky;
  top: 100px;
}
.resume-cta-card > i {
  font-size: 2.8rem;
  color: var(--cyan);
  margin-bottom: 18px;
  display: block;
}
.resume-cta-card h3 {
  font-family: var(--font-head);
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 10px;
}
.resume-cta-card p {
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ─────────────────────────────────────────────
   CONTACT
───────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-intro {
  font-size: .93rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-items { display: flex; flex-direction: column; gap: 24px; }

.contact-item { display: flex; align-items: flex-start; gap: 18px; }

.c-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--cyan-dim);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan);
  font-size: 1rem;
  flex-shrink: 0;
}

.c-label { display: block; font-size: .72rem; color: var(--text-muted); margin-bottom: 2px; letter-spacing: .06em; }
.c-val   { font-size: .85rem; color: var(--white); transition: color var(--trans); }
.c-val:hover { color: var(--cyan); }

/* form */
.contact-form { padding: 36px; border-radius: var(--radius); }

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 13px 16px;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: .85rem;
  outline: none;
  transition: border-color var(--trans), box-shadow var(--trans);
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,.1);
}

.form-success {
  display: none;
  text-align: center;
  margin-top: 16px;
  color: var(--green);
  font-size: .85rem;
}

/* ─────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────── */
footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  font-size: .78rem;
  color: var(--text-muted);
  text-align: center;
}

.footer-social { display: flex; gap: 18px; }
.footer-social a {
  color: var(--text-muted);
  font-size: 1rem;
  transition: color var(--trans), transform var(--trans);
}
.footer-social a:hover { color: var(--cyan); transform: translateY(-3px); }

/* ─────────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────────── */
@media (max-width: 900px) {
  .about-grid    { grid-template-columns: 1fr; }
  .about-img-frame { width: 220px; height: 240px; }
  .resume-layout { grid-template-columns: 1fr; }
  .contact-grid  { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: rgba(6,11,20,.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform var(--trans);
  }
  .nav-links.open  { transform: none; }
  .nav-link { font-size: 1.1rem; }
  .hamburger { display: flex; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: repeat(2,1fr); }
  .about-stats   { gap: 18px; }
}

@media (max-width: 440px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero-btns   { flex-direction: column; align-items: center; }
}