/* ── TOKENS ── */
:root {
  --bg: #F8F7FF;
  --bg-section: #EEEDF8;
  --surface: #ffffff;
  --border: #D8D6F0;
  --text: #0A0F1E;
  --text-muted: #555977;
  --accent: #6C63FF;
  --accent-light: #C4C0F5;
  --accent-hover: #5549e8;
  --terminal-bg: #0D1117;
  --terminal-text: #C4C0F5;
  --terminal-prompt: #6C63FF;
  --terminal-green: #3DE87B;
  --header-h: 64px;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(108,99,255,0.08);
  --shadow-hover: 0 8px 32px rgba(108,99,255,0.18);
  --transition: 0.2s ease;
}

body.dark-mode {
  --bg: #0A0F1E;
  --bg-section: #10162A;
  --surface: #151C30;
  --border: #252D47;
  --text: #F8F7FF;
  --text-muted: #9199BE;
  --accent: #6C63FF;
  --accent-light: #3D4466;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 36px rgba(108,99,255,0.25);
}

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

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background var(--transition), color var(--transition);
}

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

/* ── HEADER / NAV ── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), border-color var(--transition);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 100%;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-inner a{
  text-decoration: none;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-right: auto;
}
.logo-dot { color: var(--accent); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 0.25rem;
}

.nav-links a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: var(--text);
  background: var(--accent-light);
}

#dark-mode-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--transition), border-color var(--transition);
  line-height: 1;
}
#dark-mode-toggle:hover { background: var(--accent-light); }

/* ── HERO ── */
#hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 2rem;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.45;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Terminal */
.terminal-window {
  background: var(--terminal-bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #2a2f45;
  box-shadow: 0 24px 64px rgba(0,0,0,0.35);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
}

.terminal-bar {
  background: #1c2030;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }
.terminal-title {
  color: #6b7394;
  font-size: 0.78rem;
  margin-left: 0.5rem;
}

.terminal-body { padding: 1rem 1.2rem 1.2rem; }
.terminal-line { color: var(--terminal-text); margin-bottom: 0.4rem; }
.prompt { color: var(--terminal-prompt); margin-right: 0.5rem; }
.cmd { color: #f8f7ff; }
.cursor {
  color: var(--terminal-green);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.terminal-output {
  color: var(--terminal-green);
  min-height: 1.4em;
}

/* Hero Text */
.hero-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.accent { color: var(--accent); }

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ── SECTIONS ── */
section { padding: 5rem 2rem; }
section:nth-of-type(even) { background: var(--bg-section); }

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

/* ── ABOUT ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.about-text strong { color: var(--text); font-weight: 600; }

.skills-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-content: flex-start;
}

.skill-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  padding: 0.4rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

/* ── PROJECTS ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-icon { font-size: 1.4rem; }
.card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.project-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
}

.project-card p { font-size: 0.9rem; color: var(--text-muted); flex: 1; }

.card-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}
.tech-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
}

/* ── CONTACT ── */
.contact-inner { text-align: center; }
.contact-sub {
  color: var(--text-muted);
  max-width: 480px;
  margin: -1.5rem auto 2.5rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  text-decoration: none;
  transition: all var(--transition);
  min-width: 240px;
  text-align: left;
}
.contact-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.contact-icon {
  font-size: 1.25rem;
  color: var(--accent);
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.contact-card div { display: flex; flex-direction: column; }
.contact-type {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact-value {
  font-size: 0.88rem;
  color: var(--text);
  margin-top: 0.1rem;
}

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .nav-links { display: none; }
  #hero { padding: 3rem 1.25rem; }
  section { padding: 3.5rem 1.25rem; }
  .contact-card { min-width: 0; width: 100%; }
}

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

/* ── CV BUTTON IN NAV ── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-cv {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 7px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-cv:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* ── EXPERIENCE TIMELINE ── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.exp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.exp-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}

.exp-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}
.exp-client {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
}
.exp-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--accent-light);
  padding: 0.15rem 0.5rem;
  border-radius: 100px;
}

.exp-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.exp-project {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-style: italic;
}

.exp-duties {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.exp-duties li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}
.exp-duties li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.78rem;
}

/* ── FEATURED PROJECT CARD ── */
.project-card.featured {
  grid-column: 1 / -1;
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--surface) 0%, var(--accent-light) 100%);
}
.project-card.featured h3 { font-size: 1.2rem; }

/* ── INTERNSHIP ── */
.internship-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.internship-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}
.internship-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.internship-company {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.99rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.25rem;
}
.internship-role {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}
.internship-period {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}
.internship-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  white-space: nowrap;
  align-self: flex-start;
}

/* ── CERTIFICATIONS ── */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.cert-card {
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.cert-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}

.cert-issuer {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.73rem;
  font-weight: 500;
}
.cert-issuer.amazon { color: #ff9900; }
.cert-issuer.google { color: #4285F4; }
.cert-issuer.cisco  { color: #1ba0d7; }
.cert-issuer-icon { font-size: 1rem; }

.cert-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
}

.cert-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.cert-skill-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  padding: 0.2rem 0.6rem;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 100px;
  margin-top: auto;
}

/* ── CV DOWNLOAD IN CONTACT ── */
.contact-card.cv-download {
  border-color: var(--accent);
}
.contact-card.cv-download:hover {
  background: var(--accent);
  color: #fff;
}
.contact-card.cv-download:hover .contact-type,
.contact-card.cv-download:hover .contact-value,
.contact-card.cv-download:hover .contact-icon { color: #fff; }

/* ── RESPONSIVE ADDITIONS ── */
@media (max-width: 700px) {
  .btn-cv { display: none; }
  .project-card.featured { grid-column: auto; }
  .nav-right { gap: 0.4rem; }
}

/* ── SKILLS CATEGORIES ── */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2rem;
}
.skill-group-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

/* ── SEMINARS ── */
.seminars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.seminar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.seminar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent);
}
.seminar-img-placeholder {
  width: 100%;
  height: 160px;
  background: var(--accent-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-bottom: 1px solid var(--border);
}
.seminar-body {
  padding: 1rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.seminar-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.seminar-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
}

/* ── PROJECT ENTRIES (Software / Capstone) ── */
.project-entry {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}
.capstone-entry {
  border-left: 4px solid var(--accent);
}
.project-entry-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.project-year-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.35rem;
}
.project-entry-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.project-entry-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}
.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-content: flex-start;
}

.capstone-intro {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 720px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

/* Project sub-blocks */
.project-section-block {
  margin-bottom: 1.75rem;
}
.project-section-block:last-child { margin-bottom: 0; }

.block-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.feature-list li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.55;
}
.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.78rem;
  top: 2px;
}

/* Screenshots */
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.screenshot-placeholder {
  aspect-ratio: 16/10;
  background: var(--accent-light);
  border: 1.5px dashed var(--accent);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: background var(--transition);
}
.screenshot-placeholder:hover { background: var(--border); }

/* Shared placeholder styles */
.placeholder-icon { font-size: 1.6rem; opacity: 0.5; }
.placeholder-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
  padding: 0 0.5rem;
}

/* Hardware */
.hardware-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.hardware-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}
.hardware-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.hardware-name {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}
.hardware-desc {
  display: block;
  font-size: 0.83rem;
  color: var(--text-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  .project-entry-header { flex-direction: column; }
  .screenshots-grid { grid-template-columns: 1fr 1fr; }
  .skills-categories { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .screenshots-grid { grid-template-columns: 1fr; }
  .skills-categories { grid-template-columns: 1fr; }
}
.subsection-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--accent);
}

.subsection-heading + .internship-card,
.subsection-heading + .timeline {
  margin-top: 0;
}
.decoration{
  text-decoration: none;
}