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

:root {
  --bg: #060b18;
  --bg2: #0d1525;
  --bg3: #111e35;
  --accent: #5b8cf5;
  --accent2: #a78bfa;
  --accent3: #34d399;
  --text: #e8edf8;
  --muted: #7a8aaa;
  --card: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.07);
  --radius: 18px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
  --shadow: 0 8px 40px rgba(0,0,0,0.45);
  --glow: 0 0 30px rgba(91,140,245,0.25);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

.highlight { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 6px; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 5%;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(6,11,24,0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 30px rgba(0,0,0,0.5);
}
.nav-logo {
  font-size: 1.4rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  letter-spacing: 2px;
}
.nav-links { display: flex; list-style: none; gap: 2rem; align-items: center; }
.nav-links a {
  color: var(--muted); text-decoration: none; font-weight: 500;
  font-size: 0.95rem; transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }
.btn-nav {
  background: linear-gradient(135deg, var(--accent), var(--accent2)) !important;
  -webkit-background-clip: unset !important; -webkit-text-fill-color: unset !important; background-clip: unset !important;
  color: #fff !important;
  padding: 0.5rem 1.3rem; border-radius: 50px;
  font-weight: 600 !important;
}
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding: 0 5%;
  text-align: center;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 60% 30%, rgba(91,140,245,0.18) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(167,139,250,0.15) 0%, transparent 50%);
}
#dnaCanvas { position: absolute; inset: 0; opacity: 0.4; pointer-events: none; z-index: 0; }

.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(91,140,245,0.13);
  border: 1px solid rgba(91,140,245,0.35);
  color: var(--accent);
  padding: 0.45rem 1.2rem; border-radius: 50px;
  font-size: 0.88rem; font-weight: 600;
  margin-bottom: 1.4rem;
  animation: fadeUp 0.8s ease both;
}
.hero-name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 700; line-height: 1.1;
  margin-bottom: 1rem;
  animation: fadeUp 0.9s ease both 0.1s;
}
.hero-subtitle {
  color: var(--muted); font-size: 1.1rem;
  margin-bottom: 2.2rem;
  animation: fadeUp 1s ease both 0.2s;
}
.hero-cta {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  margin-bottom: 3rem;
  animation: fadeUp 1.1s ease both 0.3s;
}
.hero-stats {
  display: flex; align-items: center; justify-content: center; gap: 2rem;
  animation: fadeUp 1.2s ease both 0.4s;
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-size: 2rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.78rem; color: var(--muted); margin-top: -0.2rem; }
.stat-divider { width: 1px; height: 40px; background: var(--card-border); }

.scroll-down {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  color: var(--muted); font-size: 0.75rem;
  animation: bounce 2s infinite;
  z-index: 2;
}
.scroll-down span {
  display: block; width: 20px; height: 20px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff; font-weight: 700; font-size: 0.95rem;
  padding: 0.8rem 2rem; border-radius: 50px; border: none;
  text-decoration: none; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(91,140,245,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(91,140,245,0.5); }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: transparent;
  color: var(--text); font-weight: 600; font-size: 0.95rem;
  padding: 0.8rem 2rem; border-radius: 50px;
  border: 1px solid var(--card-border);
  text-decoration: none; cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.btn-secondary:hover { background: var(--card); border-color: var(--accent); }

/* ===== SECTIONS ===== */
.section { padding: 6rem 5%; }
.container { max-width: 1100px; margin: 0 auto; }

.section-tag {
  display: inline-block;
  background: rgba(91,140,245,0.12);
  border: 1px solid rgba(91,140,245,0.3);
  color: var(--accent); font-size: 0.82rem; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  padding: 0.35rem 1rem; border-radius: 50px;
  margin-bottom: 1rem;
}
.section-title { font-family: 'Playfair Display', serif; font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; margin-bottom: 3rem; }

/* ===== ABOUT ===== */
.about { background: var(--bg2); }
.about-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; align-items: center; }
.about-image-wrap { position: relative; display: flex; justify-content: center; }
.about-img-placeholder {
  width: 280px; height: 280px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(91,140,245,0.2), rgba(167,139,250,0.2));
  border: 3px solid var(--card-border);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.about-photo {
  width: 100%; height: 100%; object-fit: cover;
  border-radius: 50%;
  display: block;
}
.dna-ring {
  position: absolute; inset: -15px; border-radius: 50%;
  border: 2px dashed rgba(91,140,245,0.35);
  animation: spin 20s linear infinite;
}
.about-card-float {
  position: absolute; bottom: 10px; right: -10px;
  background: var(--bg3); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); padding: 0.75rem 1.1rem;
  display: flex; align-items: center; gap: 0.75rem;
  box-shadow: var(--shadow);
  animation: float 4s ease-in-out infinite;
}
.card-float-icon { font-size: 1.5rem; }
.about-card-float strong { display: block; font-size: 0.88rem; color: var(--text); }
.about-card-float small { color: var(--muted); font-size: 0.76rem; }
.about-text h2 { font-family: 'Playfair Display', serif; font-size: 2.2rem; font-weight: 700; margin-bottom: 1.2rem; }
.about-text p { color: var(--muted); margin-bottom: 1rem; }
.about-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-top: 1.5rem; }
.info-item { display: flex; align-items: center; gap: 0.6rem; font-size: 0.88rem; color: var(--muted); }
.info-icon { font-size: 1rem; }

/* ===== SKILLS ===== */
.skills { background: var(--bg); }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.5rem; }
.skill-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 2rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: default;
}
.skill-card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: var(--glow); }
.skill-icon { font-size: 2.2rem; margin-bottom: 1rem; }
.skill-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 1rem; }
.skill-card ul { list-style: none; }
.skill-card ul li {
  color: var(--muted); font-size: 0.88rem;
  padding: 0.35rem 0; border-bottom: 1px solid var(--card-border);
}
.skill-card ul li::before { content: '→ '; color: var(--accent); }
.skill-card ul li:last-child { border-bottom: none; }

/* ===== PROJECTS ===== */
.projects { background: var(--bg2); }
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.project-card.featured { grid-column: 1 / -1; display: grid; grid-template-columns: 1.2fr 2fr; gap: 0; }
.project-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
}
.project-card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: var(--glow); }
.project-img { position: relative; }
.project-img-bg {
  height: 180px; display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
}
.project-card.featured .project-img-bg { height: 100%; min-height: 250px; }
.bg1 { background: linear-gradient(135deg, #1e3a5f 0%, #2d1b69 100%); }
.bg2 { background: linear-gradient(135deg, #0d3d2e 0%, #1a4044 100%); }
.bg3 { background: linear-gradient(135deg, #2d3a1b 0%, #1b3a1b 100%); }
.bg4 { background: linear-gradient(135deg, #3d1b1b 0%, #3d2d1b 100%); }
.project-tag {
  position: absolute; top: 1rem; left: 1rem;
  background: rgba(91,140,245,0.85);
  color: #fff; font-size: 0.75rem; font-weight: 700;
  padding: 0.3rem 0.8rem; border-radius: 50px;
}
.project-info { padding: 1.8rem; flex: 1; }
.project-info h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; }
.project-info p { color: var(--muted); font-size: 0.88rem; margin-bottom: 1rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.project-tags span {
  background: rgba(91,140,245,0.12); border: 1px solid rgba(91,140,245,0.25);
  color: var(--accent); font-size: 0.73rem; font-weight: 600;
  padding: 0.2rem 0.7rem; border-radius: 50px;
}
.project-links { display: flex; gap: 1rem; }
.proj-link { color: var(--accent); font-size: 0.85rem; font-weight: 600; text-decoration: none; transition: color var(--transition); }
.proj-link:hover { color: var(--accent2); }

/* ===== BLOG ===== */
.blog { background: var(--bg2); }
.blog-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 2rem;
  margin-bottom: 2rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.blog-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); }
.blog-card-placeholder { opacity: 0.6; padding: 1.5rem 2rem; }
.blog-meta { display: flex; gap: 1rem; margin-bottom: 0.8rem; font-size: 0.82rem; }
.blog-category { color: var(--accent); font-weight: 700; background: rgba(91,140,245,0.1); padding: 0.2rem 0.6rem; border-radius: 5px; }
.blog-date { color: var(--muted); display: flex; align-items: center; }
.blog-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 0.8rem; line-height: 1.4; }
.blog-excerpt { color: var(--muted); font-size: 0.95rem; line-height: 1.6; margin-bottom: 1rem; }
.blog-section { margin-bottom: 1.5rem; }
.blog-section h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--text); }
.blog-section p { color: var(--muted); font-size: 0.93rem; line-height: 1.6; margin-bottom: 0.8rem; }
.blog-list { margin-left: 1.5rem; color: var(--muted); font-size: 0.93rem; margin-bottom: 1rem; }
.blog-list li { margin-bottom: 0.4rem; }
.blog-summary { background: rgba(52,211,153,0.05); border-left: 3px solid var(--accent3); padding: 1.2rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.blog-summary h4 { font-size: 1.1rem; color: var(--accent3); margin-bottom: 0.5rem; }
.blog-summary p { color: var(--text); font-size: 0.95rem; margin: 0; }
.blog-toggle {
  background: none; border: none;
  color: var(--accent); font-size: 0.88rem; font-weight: 700;
  cursor: pointer; padding: 0.5rem 0; margin: 1rem 0;
  transition: color var(--transition);
}
.blog-toggle:hover { color: var(--accent2); }
.blog-footer-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; border-top: 1px solid var(--card-border); padding-top: 1rem; }
.blog-footer-tags span { background: rgba(167,139,250,0.1); color: var(--accent2); font-size: 0.75rem; font-weight: 600; padding: 0.25rem 0.75rem; border-radius: 50px; }

/* ===== EXPERIENCE ===== */
.experience { background: var(--bg); }
.timeline { position: relative; padding-left: 2.5rem; }
.timeline::before {
  content: ''; position: absolute; left: 0.6rem; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(180deg, var(--accent), var(--accent2));
  border-radius: 2px;
}
.timeline-item { position: relative; margin-bottom: 2.5rem; }
.timeline-dot {
  position: absolute; left: -2.08rem; top: 1.4rem;
  width: 16px; height: 16px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 12px rgba(91,140,245,0.6);
}
.timeline-date { color: var(--accent); font-size: 0.82rem; font-weight: 700; margin-bottom: 0.6rem; letter-spacing: 0.5px; }
.timeline-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 1.6rem;
  transition: border-color var(--transition);
}
.timeline-card:hover { border-color: var(--accent); }
.tl-header { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 0.8rem; }
.tl-icon { font-size: 1.8rem; }
.tl-header h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.2rem; }
.tl-company { color: var(--accent); font-size: 0.82rem; font-weight: 600; }
.timeline-card > p { color: var(--muted); font-size: 0.88rem; margin-bottom: 1rem; }
.tl-short { color: var(--muted); font-size: 0.88rem; margin-bottom: 0.5rem; }
.tl-full p { color: var(--muted); font-size: 0.88rem; margin-bottom: 1rem; }
.tl-toggle {
  background: none; border: none;
  color: var(--accent); font-size: 0.82rem; font-weight: 700;
  cursor: pointer; padding: 0.2rem 0; margin-bottom: 0.8rem;
  transition: color var(--transition);
}
.tl-toggle:hover { color: var(--accent2); }
.tl-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tl-tags span {
  background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.25);
  color: var(--accent3); font-size: 0.73rem; font-weight: 600;
  padding: 0.2rem 0.7rem; border-radius: 50px;
}

/* ===== CONTACT ===== */
.contact { background: var(--bg2); text-align: center; }
.contact-sub { color: var(--muted); max-width: 540px; margin-bottom: 3rem; margin-inline: auto; }
.contact-grid { display: flex; justify-content: center; align-items: center; gap: 2rem; }
.contact-cards { display: flex; flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 1.5rem; width: 100%; max-width: 800px; margin: 0 auto; }
.contact-card {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); padding: 1.2rem 1.4rem;
  text-decoration: none; color: var(--text);
  transition: transform var(--transition), border-color var(--transition);
}
.contact-card:hover { transform: translateX(6px); border-color: var(--accent); }
.cc-icon { font-size: 1.6rem; }
.contact-card strong { display: block; font-size: 0.9rem; font-weight: 700; }
.contact-card small { color: var(--muted); font-size: 0.78rem; }
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--muted); }
.form-group input, .form-group textarea {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius-sm); padding: 0.8rem 1rem;
  color: var(--text); font-size: 0.9rem; font-family: 'Inter', sans-serif;
  resize: vertical; transition: border-color var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91,140,245,0.15);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--muted); }
.form-success { color: var(--accent3); font-size: 0.88rem; display: none; }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--card-border);
  padding: 3rem 5%; text-align: center;
}
.footer-logo { font-size: 2rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 0.8rem; }
.footer-text { color: var(--muted); font-size: 0.88rem; margin-bottom: 0.5rem; }
.footer-quote { color: rgba(255,255,255,0.2); font-style: italic; font-size: 0.82rem; }

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; text-align: center; }
  .about-info-grid { justify-items: center; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg2); padding: 1.5rem 5%; gap: 1.2rem; }
  .nav-links.open { display: flex; }
  .hamburger { display: block; }
  .hero-stats { gap: 1rem; }
  .stat-num { font-size: 1.5rem; }
}