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

:root {
  --bg: #000021;
  --surface: #12123e;
  --surface2: #1a1a50;
  --accent: #aa6be4;
  --accent2: #9999e2;
  --accent-glow: rgba(170, 107, 228, 0.18);
  --text: #f0f0ff;
  --muted: #9999b8;
  --border: rgba(153, 153, 226, 0.2);
  --radius: 12px;
  --transition: 0.3s ease;
  --max-w: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: "Poppins", sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

/* ── Utility ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.purple {
  color: var(--accent);
  font-weight: 600;
}
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-subtitle {
  color: var(--muted);
  font-size: 1rem;
  max-width: 520px;
  margin-bottom: 48px;
}
.divider {
  border: 0;
  background: var(--border);
  height: 1px;
  margin: 0 auto;
  max-width: var(--max-w);
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 68px;
  background: rgba(18, 18, 62, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}
.nav-inner {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-logo span {
  color: var(--accent);
}
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover {
  color: var(--accent);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.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);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 20px;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  text-decoration: none;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 500;
  transition: color var(--transition);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child {
  border-bottom: none;
}
.mobile-menu a:hover {
  color: var(--accent);
}

/* ── HERO ── */
#home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  position: relative;
  overflow: hidden;
}
.hero-bg-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(170, 107, 228, 0.12) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 60px 24px;
}
.hero-text {
  flex: 1;
  min-width: 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-glow);
  border: 1px solid rgba(170, 107, 228, 0.3);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
  text-transform: uppercase;
}
.hero-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.7);
  }
}
.hero-heading {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.typed-line {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 24px;
  min-height: 2em;
}
#element {
  color: var(--accent);
  font-weight: 600;
}
.hero-desc {
  color: var(--muted);
  font-size: 0.97rem;
  max-width: 440px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: "Poppins", sans-serif;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: #bf86f0;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(170, 107, 228, 0.35);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent-glow);
  transform: translateY(-2px);
}
.hero-image {
  flex: 0 0 auto;
  width: min(340px, 40vw);
  position: relative;
}
.hero-image img {
  width: 100%;
  filter: drop-shadow(0 0 40px rgba(170, 107, 228, 0.2));
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.stat {
  text-align: left;
}
.stat-num {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 2px;
}

/* ── ABOUT ── */
#about {
  padding: 100px 0;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.about-img-placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.9rem;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.about-img-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 60%);
}
.about-img-placeholder svg {
  opacity: 0.4;
}
.about-img-real {
  height: 100%;
  width: 107%;
  border-radius: var(--radius);
  display: block;
  border: 1px solid var(--border);
}
.about-corner-tag {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.82rem;
  text-align: center;
}
.about-corner-tag strong {
  display: block;
  font-size: 1.2rem;
  color: var(--accent);
}
.about-text p {
  color: var(--muted);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 28px;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--muted);
}
.highlight-item::before {
  content: "▹";
  color: var(--accent);
  flex-shrink: 0;
}

/* ── SKILLS ── */
#skills {
  padding: 100px 0;
  background: var(--surface);
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.skill-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: all var(--transition);
  cursor: default;
}
.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--accent-glow);
}
.skill-icon {
  font-size: 2rem;
  margin-bottom: 8px;
  display: block;
}
.skill-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}
.skill-level {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 4px;
}

/* Skill categories */
.skills-categories {
  margin-bottom: 40px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.skill-tab {
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-family: "Poppins", sans-serif;
  transition: all var(--transition);
}
.skill-tab.active,
.skill-tab:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── PROJECTS ── */
#projects {
  padding: 100px 0;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}
.project-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--surface2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  position: relative;
  overflow: hidden;
}
.project-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, var(--surface) 100%);
}
.project-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(170, 107, 228, 0.25);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.project-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.project-desc {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
}
.project-links {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition);
}
.project-link:hover {
  opacity: 0.75;
}

/* ── EXPERIENCE ── */
#experience {
  padding: 100px 0;
  background: var(--surface);
}
.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 16px;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(170, 107, 228, 0.2);
}
.tl-date {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.tl-role {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.tl-company {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 10px;
}
.tl-desc {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ── CONTACT ── */
#contact {
  padding: 100px 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.contact-info p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 28px;
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-link-item {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.contact-link-item:hover {
  color: var(--accent);
}
.contact-link-item .icon-wrap {
  width: 38px;
  height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: all var(--transition);
}
.contact-link-item:hover .icon-wrap {
  background: var(--accent-glow);
  border-color: var(--accent);
}
/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}
.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  font-family: "Poppins", sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #555575;
}
.form-group textarea {
  resize: none;
  min-height: 130px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-status {
  font-size: 0.85rem;
  padding: 10px 14px;
  border-radius: 8px;
  display: none;
}
.form-status.success {
  display: block;
  background: rgba(80, 200, 120, 0.12);
  border: 1px solid rgba(80, 200, 120, 0.3);
  color: #50c878;
}
.form-status.error {
  display: block;
  background: rgba(255, 80, 80, 0.12);
  border: 1px solid rgba(255, 80, 80, 0.3);
  color: #ff6b6b;
}

/* ── FOOTER ── */
footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.footer-socials {
  display: flex;
  gap: 16px;
}
.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--muted);
  font-size: 1rem;
  transition: all var(--transition);
}
.social-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--muted);
}
.footer-copy a {
  color: var(--accent);
  text-decoration: none;
}

/* ── Scroll to top ── */
#scrollTop {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(170, 107, 228, 0.4);
}
#scrollTop.visible {
  display: flex;
}
#scrollTop:hover {
  transform: translateY(-3px);
  background: #bf86f0;
}

/* ── Reveal animation ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-image {
    display: none;
  }
  .hero-text {
    max-width: 100%;
  }
  .hero-desc {
    max-width: 100%;
  }
}

@media (max-width: 700px) {
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .hero-inner {
    padding: 48px 24px;
  }
  .hero-heading {
    font-size: clamp(1.7rem, 7vw, 2.4rem);
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .about-highlights {
    grid-template-columns: 1fr;
  }
  #about,
  #skills,
  #projects,
  #experience,
  #contact {
    padding: 70px 0;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}