@import url('https://fonts.googleapis.com/css2?family=Viga&family=Raleway:wght@300;400;500;600&display=swap');

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

:root {
  --accent:        #ADF5FF;
  --accent-glow:   rgba(173,245,255,0.22);
  --accent-dim:    rgba(173,245,255,0.11);
  --accent-border: rgba(173,245,255,0.26);
  --white:         #ffffff;
  --white-dim:     rgba(255,255,255,0.68);
  --glass:         rgba(6,10,20,0.65);
  --dark:          #060a14;
  --nav-h:         68px;
  --font-h:        'Viga', 'Arial Black', sans-serif;
  --font-b:        'Raleway', Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-b);
  color: var(--white);
  background-color: var(--dark);
  background-image:
    linear-gradient(
      to bottom,
      rgba(6,10,20,.38) 0%,
      rgba(6,10,20,.65) 40%,
      rgba(6,10,20,.82) 75%,
      rgba(6,10,20,.93) 100%
    ),
    url('images/hero.jpg');
  background-size: cover;
  background-position: center 35%;
  background-attachment: fixed;
  background-repeat: no-repeat;
  overflow-x: hidden;
  min-height: 100vh;
}

.navbar {
  position: fixed; top:0; left:0; right:0;
  height: var(--nav-h); z-index: 500;
  display: flex; align-items: center; justify-content: flex-end;
  padding: 0 50px;
  transition: background .4s ease, border-bottom .4s ease;
}
.navbar.scrolled {
  background: rgba(6,10,20,.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--accent-border);
}

.navbar nav { display: flex; gap: 30px; }

.nav-link {
  color: rgba(255,255,255,.58);
  text-decoration: none;
  font-family: var(--font-h);
  font-size: 11px; letter-spacing: 2px;
  position: relative; padding-bottom: 4px;
  transition: color .25s;
}
.nav-link::after {
  content: '';
  position: absolute; bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 1.5px;
  background: var(--accent);
  transition: width .38s cubic-bezier(.4,0,.2,1);
}
.nav-link:hover        { color: var(--white); }
.nav-link:hover::after { width: 100%; }
.nav-link.active        { color: var(--white); }
.nav-link.active::after { width: 100%; }

.hamburger {
  display: none;
  position: fixed; top:16px; left:16px; z-index:600;
  background: rgba(6,10,20,.78);
  border: 1px solid var(--accent-border); border-radius:8px;
  padding: 10px 12px; cursor: pointer;
  flex-direction: column; gap:5px;
  backdrop-filter: blur(8px);
}
.hamburger span {
  display:block; width:22px; height:2px;
  background:var(--white); border-radius:2px;
}

.mob-overlay {
  display: none;
  position: fixed; inset:0; z-index:700;
  background: rgba(6,10,20,.97);
  backdrop-filter: blur(24px);
  flex-direction: column; align-items: center; justify-content: center; gap:32px;
}
.mob-overlay.open { display: flex; }
.mob-close {
  position:absolute; top:20px; right:24px;
  background:none; border:none; color:rgba(255,255,255,.45);
  font-size:26px; cursor:pointer;
}
.mob-overlay nav { display:flex; flex-direction:column; align-items:center; gap:26px; }
.mob-link {
  color: var(--white); text-decoration:none;
  font-family: var(--font-h); font-size:28px; letter-spacing:2px;
  transition: color .2s;
}
.mob-link:hover, .mob-link.active { color: var(--accent); }

.section {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: calc(var(--nav-h) + 40px) 32px 60px;
  position: relative;
}
.section + .section { border-top: 1px solid rgba(255,255,255,.05); }

.section-inner {
  max-width: 1060px; width:100%;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-h);
  font-size: clamp(26px,4vw,38px); letter-spacing: 2.5px;
  margin-bottom: 50px; display: inline-block; position: relative;
}
.section-title::after {
  content: '';
  display: block; width: 44px; height: 2px;
  background: var(--accent); margin-top: 10px;
}

.glass {
  background: var(--glass);
  border: 1px solid var(--accent-border);
  border-radius: 14px;
  padding: 28px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: border-color .3s, transform .35s, box-shadow .35s;
}
.glass:hover {
  border-color: rgba(173,245,255,.52);
  transform: translateY(-4px);
  box-shadow: 0 14px 44px rgba(0,0,0,.38), 0 0 24px var(--accent-glow);
}

.tags { display:flex; flex-wrap:wrap; gap:7px; margin-top:14px; }
.tag {
  background: var(--accent-dim); border:1px solid var(--accent-border);
  color: var(--accent); padding:3px 11px; border-radius:20px; font-size:11px;
}


.btn {
  display: inline-flex; align-items:center; gap:9px;
  font-family: var(--font-h); font-size:13px; letter-spacing:1.5px;
  padding: 13px 28px; border-radius:5px; text-decoration:none; border:none; cursor:pointer;
  transition: transform .25s, box-shadow .25s, background .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background:var(--accent); color:#060a14; }
.btn-primary:hover { box-shadow: 0 6px 24px var(--accent-glow); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--accent-border);
  color: var(--white);
}
.btn-outline:hover { border-color:var(--accent); color:var(--accent); }


.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease var(--d, 0s), transform .7s ease var(--d, 0s);
}
.reveal.visible { opacity:1; transform:translateY(0); }


.contact-corner {
  position: fixed; bottom:32px; right:40px; z-index:400;
  color: #ffffff; text-decoration:none;
  font-family: var(--font-h); font-size:12px; letter-spacing:2.5px;
  font-weight: 600;
  transition: color .25s, opacity .4s;
}
.contact-corner:hover { color: var(--accent); }
.contact-corner.hidden { opacity:0; pointer-events:none; }


#home {
  flex-direction: column;
  justify-content: center; align-items: center;
  text-align: center;
  padding-top: var(--nav-h);
}

.hero-content { max-width: 760px; }

.hero-greeting {
  font-family: var(--font-h);
  font-size: clamp(18px,3vw,24px); color: var(--white-dim);
  letter-spacing: 3px; margin-bottom: 6px;
  animation: fadeDown .8s ease both;
}
.hero-name {
  font-family: var(--font-h);
  font-size: clamp(46px,8vw,82px); letter-spacing:3px; line-height:1.06;
  margin-bottom: 18px;
  animation: fadeDown .9s .12s ease both;
}
.hero-name .accent { color: var(--accent); }
.hero-typed {
  font-family: var(--font-h);
  font-size: clamp(14px,2.2vw,20px); color: var(--accent);
  min-height: 32px; letter-spacing:1.5px;
  animation: fadeDown 1s .24s ease both;
}
.cursor {
  display:inline-block; color:var(--accent);
  animation: blink .78s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.hero-desc {
  max-width: 620px; margin: 20px auto 40px;
  color: var(--white-dim); font-size: 15.5px; line-height:1.9;
  animation: fadeDown 1s .36s ease both;
}
.hero-cta {
  display:flex; gap:16px; flex-wrap:wrap; justify-content:center;
  animation: fadeDown 1s .48s ease both;
}
.scroll-hint {
  position: absolute; bottom:28px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center;
  animation: fadeDown 1.2s .8s ease both;
}
.scroll-hint span {
  display: block; width:16px; height:16px;
  border-right:2px solid rgba(173,245,255,.5);
  border-bottom:2px solid rgba(173,245,255,.5);
  transform: rotate(45deg);
  animation: bounce 1.6s ease-in-out infinite;
}
@keyframes bounce { 0%,100%{transform:rotate(45deg) translateY(0)} 50%{transform:rotate(45deg) translateY(6px)} }
@keyframes fadeDown { from{opacity:0;transform:translateY(-22px)} to{opacity:1;transform:translateY(0)} }


.about-grid {
  display: grid; grid-template-columns:1.1fr .9fr; gap:36px; align-items:start;
}
.about-bio p { color:var(--white-dim); margin-bottom:18px; font-size:15.5px; line-height:1.9; }
.card-label { font-family:var(--font-h); font-size:15px; color:var(--accent); margin-bottom:13px; letter-spacing:1px; }
.edu-uni    { font-weight:600; font-size:15px; margin-bottom:4px; }
.edu-degree { color:var(--white-dim); font-size:13.5px; margin-bottom:4px; }
.edu-year   { color:var(--accent); font-size:12.5px; }
.skill-row  { display:flex; gap:8px; margin-bottom:9px; font-size:13px; }
.sk-l { color:var(--accent); min-width:108px; font-weight:600; }
.sk-v { color:var(--white-dim); }


.carousel-wrap { display:flex; align-items:center; gap:16px; }
.carousel-track { flex:1; overflow:hidden; min-height:360px; position:relative; }

.proj-card {
  display: none;
  background: var(--glass); border:1px solid var(--accent-border);
  border-radius:14px; padding:38px;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.proj-card.active { display:block; }
.proj-card.enter-next { animation: enterNext .44s cubic-bezier(.4,0,.2,1) both; }
.proj-card.enter-prev { animation: enterPrev .44s cubic-bezier(.4,0,.2,1) both; }

@keyframes enterNext { from{opacity:0;transform:translateX( 64px)} to{opacity:1;transform:translateX(0)} }
@keyframes enterPrev { from{opacity:0;transform:translateX(-64px)} to{opacity:1;transform:translateX(0)} }

.proj-label {
  font-family:var(--font-h); font-size:10px; letter-spacing:2.2px;
  text-shadow: 0 0 12px rgba(173,245,255,0.4);
  color:var(--accent); text-transform:uppercase; margin-bottom:13px;
}
.proj-title {
  font-family:var(--font-h); font-size:clamp(19px,2.8vw,26px); letter-spacing:1px;
  text-decoration:underline; text-underline-offset:6px;
  text-decoration-color:var(--accent-border); margin-bottom:15px;
}
.proj-desc  { color:var(--white-dim); font-size:14.5px; line-height:1.88; margin-bottom:20px; }
.proj-link  {
  color:var(--accent); font-family:var(--font-h); font-size:12.5px;
  letter-spacing:1px; text-decoration:none; display:inline-block; margin-top:18px;
  transition:opacity .2s;
}
.proj-link:hover { opacity:.65; }

.nav-btn {
  background: var(--glass); border:1px solid var(--accent-border);
  color: var(--white); width:52px; height:52px; border-radius:50%;
  cursor:pointer; font-size:20px; font-family:var(--font-h);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
  backdrop-filter:blur(10px);
  transition: border-color .25s, color .25s, transform .25s, box-shadow .25s;
}
.nav-btn:hover {
  border-color:var(--accent); color:var(--accent);
  transform:scale(1.12); box-shadow:0 0 18px var(--accent-glow);
}

.dots { display:flex; justify-content:center; gap:10px; margin-top:24px; }
.dot {
  width:8px; height:8px; border-radius:50%;
  background:rgba(255,255,255,.12); border:1px solid var(--accent-border);
  cursor:pointer; transition:background .3s, transform .3s;
}
.dot.active { background:var(--accent); transform:scale(1.3); }

.timeline { position:relative; padding-left:28px; }
.timeline::before {
  content:''; position:absolute; left:6px; top:8px; bottom:8px;
  width:1px; background:var(--accent-border);
}
.tl-item { position:relative; margin-bottom:28px; }
.tl-dot  {
  position:absolute; left:-24px; top:28px;
  width:13px; height:13px; background:var(--accent); border-radius:50%;
  box-shadow:0 0 10px rgba(173,245,255,.65);
}
.tl-card { margin-left:8px; }
.tl-header {
  display:flex; justify-content:space-between; align-items:flex-start;
  flex-wrap:wrap; gap:10px; margin-bottom:13px;
}
.tl-header h3 { font-family:var(--font-h); font-size:16.5px; letter-spacing:.5px; }
.company { color:var(--accent); font-size:13px; letter-spacing:.3px; }
.date-badge {
  background:var(--accent-dim); border:1px solid var(--accent-border);
  color:var(--accent); padding:4px 12px; border-radius:20px;
  font-size:11px; white-space:nowrap; font-family:var(--font-h); letter-spacing:.5px;
}
.tl-card ul { padding-left:16px; color:var(--white-dim); font-size:14px; margin-bottom:14px; }
.tl-card ul li { margin-bottom:8px; line-height:1.75; }

.sub-heading {
  font-family:var(--font-h); font-size:19px; color:var(--accent);
  letter-spacing:1px; margin:46px 0 20px 8px;
}
.lead-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(218px,1fr));
  gap:16px; margin-left:8px;
}
.lead-card h4 { font-family:var(--font-h); font-size:15px; letter-spacing:.5px; margin-bottom:4px; }
.lead-card p  { color:var(--white-dim); font-size:13px; margin-top:8px; }


.cert-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:22px;
}
.cert-card { text-align:center; }
.cert-icon { font-size:40px; margin-bottom:14px; }
.cert-card h3 { font-family:var(--font-h); font-size:15px; letter-spacing:.5px; margin-bottom:8px; line-height:1.45; }
.cert-provider { color:var(--accent); font-size:13px; margin-bottom:10px; }
.cert-meta { color:rgba(255,255,255,.42); font-size:11px; margin-bottom:8px; letter-spacing:.3px; }
.cert-skills { color:var(--white-dim); font-size:12.5px; }
.badge-ongoing {
  display:inline-block; background:var(--accent-dim);
  border:1px solid var(--accent-border); color:var(--accent);
  padding:2px 10px; border-radius:20px; font-size:11px; margin-top:10px;
}


.contact-intro { color:var(--white-dim); font-size:15px; margin-bottom:46px; line-height:1.85; max-width:680px; }
.contact-layout { display:grid; grid-template-columns:1.1fr .9fr; gap:34px; align-items:start; }

.form-group { margin-bottom:15px; }
.form-input {
  width:100%; background:rgba(255,255,255,.06);
  border:1px solid var(--accent-border); border-radius:8px;
  padding:13px 17px; color:var(--white);
  font-family:var(--font-b); font-size:15px; outline:none;
  transition: border-color .25s, box-shadow .25s;
}
.form-input::placeholder { color:rgba(255,255,255,.3); }
.form-input:focus { border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-dim); }
.form-textarea { height:138px; resize:vertical; }

.submit-btn { width:100%; justify-content:center; font-size:14.5px; padding:14px; margin-top:5px; }
.form-msg { text-align:center; margin-top:12px; font-size:13px; color:var(--accent); min-height:20px; }

.contact-links { display:flex; flex-direction:column; gap:16px; }
.c-link {
  display:flex; align-items:center; gap:16px;
  text-decoration:none; color:var(--white);
}
.c-icon {
  width:48px; height:48px; flex-shrink:0;
  background:var(--accent-dim); border:1px solid var(--accent-border); border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  font-size:17px; font-weight:700; color:var(--accent);
  transition: background .25s, box-shadow .25s;
}
.c-link:hover .c-icon { background:rgba(173,245,255,.2); box-shadow:0 0 16px var(--accent-glow); }
.c-label { font-family:var(--font-h); font-size:10px; color:var(--accent); letter-spacing:1.4px; margin-bottom:2px; }
.c-val   { font-size:13px; color:var(--white-dim); }


@media (max-width:768px) {
  .navbar    { display:none; }
  .hamburger { display:flex; }
  .contact-corner { display:none; }

  .section { padding:calc(var(--nav-h) + 24px) 20px 48px; min-height:unset; }

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

  .carousel-wrap { gap:8px; }
  .nav-btn       { width:38px; height:38px; font-size:16px; }
  .lead-grid     { grid-template-columns:1fr 1fr; }

  .timeline { padding-left:20px; }
  .timeline::before { left:3px; }
  .tl-dot   { left:-19px; width:10px; height:10px; }
  .tl-header { flex-direction:column; }

  .hero-desc { font-size:14.5px; }
}