:root {
  --bg: #050914;
  --bg-soft: #07111f;
  --card: rgba(11, 22, 38, 0.76);
  --card-strong: rgba(12, 27, 49, 0.94);
  --line: rgba(148, 163, 184, 0.17);
  --text: #eef6ff;
  --muted: #9fb1c7;
  --muted-2: #71849e;
  --cyan: #22d3ee;
  --blue: #38bdf8;
  --violet: #8b5cf6;
  --green: #2dd4bf;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --max-width: 1180px;
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(34, 211, 238, 0.15), transparent 30%),
    radial-gradient(circle at 85% 5%, rgba(139, 92, 246, 0.18), transparent 28%),
    linear-gradient(180deg, #030712 0%, #050914 45%, #030712 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 3;
  opacity: 0;
  transform: translate3d(-50%, -50%, 0);
  background: radial-gradient(circle, rgba(34, 211, 238, 0.16) 0%, rgba(56, 189, 248, 0.10) 28%, rgba(34, 211, 238, 0.05) 42%, rgba(3, 7, 18, 0) 72%);
  filter: blur(10px);
  transition: opacity 0.25s ease;
  mix-blend-mode: screen;
}

body.cursor-ready .cursor-glow {
  opacity: 1;
}

.pcb-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.16;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='600' height='600' viewBox='0 0 600 600'%3E%3Cg fill='none' stroke='%2322d3ee' stroke-opacity='0.42' stroke-width='1.3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M34 78h114v72h96v-44h78v144h110v48h104'/%3E%3Cpath d='M60 318h82v-62h66v120h88v-52h96v92h82'/%3E%3Cpath d='M146 484v-78h122v56h88v-118h110v42h94'/%3E%3Cpath d='M296 54v54h72v88h96v-38h98'/%3E%3C/g%3E%3Cg fill='%2322d3ee' fill-opacity='0.62'%3E%3Ccircle cx='34' cy='78' r='4'/%3E%3Ccircle cx='148' cy='150' r='4'/%3E%3Ccircle cx='244' cy='150' r='4'/%3E%3Ccircle cx='322' cy='106' r='4'/%3E%3Ccircle cx='432' cy='250' r='4'/%3E%3Ccircle cx='536' cy='298' r='4'/%3E%3Ccircle cx='60' cy='318' r='4'/%3E%3Ccircle cx='142' cy='256' r='4'/%3E%3Ccircle cx='208' cy='376' r='4'/%3E%3Ccircle cx='296' cy='324' r='4'/%3E%3Ccircle cx='392' cy='416' r='4'/%3E%3Ccircle cx='146' cy='484' r='4'/%3E%3Ccircle cx='268' cy='462' r='4'/%3E%3Ccircle cx='356' cy='344' r='4'/%3E%3Ccircle cx='560' cy='526' r='4'/%3E%3Ccircle cx='296' cy='54' r='4'/%3E%3Ccircle cx='464' cy='158' r='4'/%3E%3Ccircle cx='562' cy='158' r='4'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 780px 780px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.82), rgba(0,0,0,0.44) 55%, transparent 100%);
}

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

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

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.06;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}

.orb-one {
  background: var(--cyan);
  top: 12%;
  left: -160px;
}

.orb-two {
  background: var(--violet);
  right: -180px;
  top: 44%;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-height);
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(3, 7, 18, 0.72);
  border-bottom: 1px solid var(--line);
}

.navbar {
  width: min(var(--max-width), calc(100% - 40px));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.9), rgba(139, 92, 246, 0.9));
  box-shadow: 0 10px 28px rgba(34, 211, 238, 0.23);
}

.brand-text {
  font-size: 0.98rem;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  margin: 0;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 11px 13px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  border-radius: 999px;
  transition: 0.22s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(148, 163, 184, 0.11);
}

.nav-links .nav-cta {
  color: #03131d;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 14px 30px rgba(34, 211, 238, 0.18);
}

.nav-links .nav-cta:hover {
  background: linear-gradient(135deg, #67e8f9, #60a5fa);
  color: #03131d;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: white;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 4px auto;
  border-radius: 999px;
  transition: 0.22s ease;
}

.section {
  position: relative;
  z-index: 1;
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
  padding: 96px 0;
  scroll-margin-top: 86px;
}

.hero {
  min-height: 100vh;
  width: 100%;
  max-width: none;
  padding: 148px max(20px, calc((100vw - var(--max-width)) / 2)) 80px;
  display: grid;
  grid-template-columns: 1.08fr 0.72fr;
  align-items: center;
  gap: 58px;
}

.grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.11) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.95), transparent 83%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 800;
  margin: 0 0 14px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 20px var(--cyan);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(3.6rem, 8vw, 7.7rem);
  line-height: 0.88;
  letter-spacing: -0.085em;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(2rem, 4.4vw, 4rem);
  line-height: 1;
  letter-spacing: -0.055em;
  margin: 0;
}

h3 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero-title {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  color: var(--blue);
  font-weight: 760;
  margin-bottom: 18px;
}

.hero-description {
  color: var(--muted);
  max-width: 700px;
  font-size: 1.08rem;
  line-height: 1.82;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  letter-spacing: -0.01em;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #03131d;
  box-shadow: 0 20px 40px rgba(34, 211, 238, 0.22);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--line);
  color: var(--text);
}

.button.ghost {
  color: var(--cyan);
  border-color: rgba(34, 211, 238, 0.24);
  background: rgba(34, 211, 238, 0.06);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 650px;
}

.stats div {
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.045);
  border-radius: 20px;
}

.stats strong {
  display: block;
  font-size: 1.45rem;
  color: var(--text);
}

.stats span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-card {
  position: relative;
  padding: 18px;
  border: 1px solid rgba(34, 211, 238, 0.23);
  border-radius: 38px;
  background: linear-gradient(180deg, rgba(12, 27, 49, 0.92), rgba(6, 13, 27, 0.82));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.32), transparent 35%, rgba(139, 92, 246, 0.24));
  z-index: -1;
}

.profile-frame {
  aspect-ratio: 4 / 5;
  border-radius: 30px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
}

.profile-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 24%;
}

.signal-card {
  margin-top: 16px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
}

.signal-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.signal-line {
  height: 50px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.signal-line span {
  display: block;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  animation: pulse 1.9s ease-in-out infinite;
}

.signal-line span:nth-child(1) { height: 28%; animation-delay: 0s; }
.signal-line span:nth-child(2) { height: 80%; animation-delay: 0.1s; }
.signal-line span:nth-child(3) { height: 45%; animation-delay: 0.2s; }
.signal-line span:nth-child(4) { height: 100%; animation-delay: 0.3s; }
.signal-line span:nth-child(5) { height: 36%; animation-delay: 0.4s; }

@keyframes pulse {
  0%, 100% { transform: scaleY(0.72); opacity: 0.62; }
  50% { transform: scaleY(1); opacity: 1; }
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 0.45fr;
  gap: 20px;
}

.glass-card,
.skill-card,
.experience-card,
.project-card,
.certificate-card,
.contact-panel,
.contact-form,
.timeline,
.mini-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(18px);
}

.glass-card.large {
  padding: 34px;
}

.glass-card p,
.timeline p,
.experience-card p,
.project-card p,
.certificate-card p,
.certificate-card small,
.contact-form .form-note {
  color: var(--muted);
  line-height: 1.76;
}

.glass-card p:last-child,
.project-card p:last-child,
.experience-card p:last-child {
  margin-bottom: 0;
}

.mini-cards {
  display: grid;
  gap: 14px;
}

.mini-card {
  padding: 22px;
}

.mini-card span,
.timeline-date,
.experience-card span,
.project-topline span,
.certificate-card span,
.contact-item span,
label span {
  display: block;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.mini-card strong {
  display: block;
  font-size: 1.05rem;
}

.skills-grid,
.experience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.skill-card,
.experience-card,
.certificate-card,
.project-card {
  padding: 26px;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.skill-card:hover,
.experience-card:hover,
.certificate-card:hover,
.project-card:hover,
.mini-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.35);
  background: rgba(12, 27, 49, 0.9);
}

.tags,
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 18px;
}

.tags span,
.project-tags span {
  padding: 8px 11px;
  border-radius: 999px;
  color: #cdefff;
  background: rgba(34, 211, 238, 0.09);
  border: 1px solid rgba(34, 211, 238, 0.18);
  font-size: 0.82rem;
  font-weight: 680;
}

.timeline {
  padding: 30px;
  position: relative;
}

.timeline-item {
  position: relative;
  padding-left: 34px;
  padding-bottom: 34px;
  border-left: 1px solid rgba(34, 211, 238, 0.24);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}

.muted {
  color: var(--muted-2) !important;
}

.project-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 18px;
}

.project-card.featured {
  min-height: 420px;
  background:
    radial-gradient(circle at top right, rgba(34, 211, 238, 0.15), transparent 38%),
    var(--card-strong);
}

.project-topline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.project-topline span {
  display: inline-flex;
  margin: 0;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.09);
  border: 1px solid rgba(34, 211, 238, 0.16);
}

.certificate-card small {
  display: block;
}

.certificate-feature {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

.certificate-preview {
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.14);
  background: rgba(255, 255, 255, 0.03);
  min-height: 100%;
}

.certificate-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.02);
}

.certificate-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.certificate-button {
  margin-top: 16px;
  align-self: flex-start;
  background: rgba(34, 211, 238, 0.08);
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.24);
}

.certificate-button:hover {
  background: rgba(34, 211, 238, 0.14);
}

.contact-panel,
.contact-form {
  padding: 28px;
}

.contact-panel {
  display: grid;
  gap: 14px;
}

.contact-item {
  display: block;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  transition: 0.22s ease;
}

.contact-item:hover {
  border-color: rgba(34, 211, 238, 0.34);
  background: rgba(34, 211, 238, 0.06);
}

.contact-item strong {
  word-break: break-word;
}

.contact-form {
  display: grid;
  gap: 17px;
}

label {
  display: grid;
  gap: 8px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(2, 6, 23, 0.58);
  color: var(--text);
  padding: 15px 16px;
  font: inherit;
  outline: none;
  transition: 0.22s ease;
}

input:focus,
textarea:focus {
  border-color: rgba(34, 211, 238, 0.56);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.08);
}

textarea {
  resize: vertical;
}

.form-note {
  margin: -2px 0 0;
  font-size: 0.85rem;
}

.footer {
  position: relative;
  z-index: 1;
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 42px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--cyan);
  font-weight: 800;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.18s; }

@media (max-width: 980px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav-links {
    position: fixed;
    inset: var(--header-height) 20px auto 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(3, 7, 18, 0.96);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    justify-content: center;
  }

  .hero,
  .about-grid,
  .contact-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 34px;
  }

  .hero-card {
    max-width: 520px;
    margin: 0 auto;
  }

  .skills-grid,
  .experience-grid,
  .certificate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 70px;
  }

  .navbar,
  .section,
  .footer {
    width: min(100% - 28px, var(--max-width));
  }

  .brand-text {
    display: none;
  }

  .hero {
    padding: 126px 14px 58px;
  }

  .hero-actions,
  .footer,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .stats,
  .skills-grid,
  .experience-grid,
  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .glass-card.large,
  .timeline,
  .skill-card,
  .experience-card,
  .project-card,
  .certificate-card,
  .contact-panel,
  .contact-form {
    padding: 22px;
  }

  .section {
    padding: 70px 0;
  }

  h1 {
    letter-spacing: -0.07em;
  }
}


@media (max-width: 980px) {
  .cursor-glow {
    display: none;
  }

  .certificate-feature {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .certificate-grid {
    grid-template-columns: 1fr;
  }
}