/* =========================================
   VYNDEV — PORTFOLIO
   Design System & Global Styles
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* =========================================
   TOKENS
   ========================================= */
:root {
  --bg:           #080808;
  --bg-secondary: #0e0e0e;
  --bg-card:      #111111;
  --bg-card-hover:#161616;
  --border:       rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.18);
  --text-primary: #ffffff;
  --text-secondary:#a0a0a0;
  --text-muted:   #444444;
  --grid-color:   rgba(255,255,255,0.038);

  --navbar-height: 60px;
  --max-width:     1160px;

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 18px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t:  all 0.2s var(--ease);
  --ts: all 0.4s var(--ease);
}

/* =========================================
   RESET
   ========================================= */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color:inherit; text-decoration:none; }
img { max-width:100%; height:auto; display:block; }
button { font-family:'Inter', sans-serif; cursor:pointer; }

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--navbar-height);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  background: rgba(8,8,8,0.82);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  transition: border-color 0.3s;
}
.navbar.scrolled { border-bottom-color: rgba(255,255,255,0.12); }

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  transition: var(--t);
  flex-shrink: 0;
}
.nav-logo:hover { opacity: 0.65; }
.logo-badge {
  width: 7px; height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: livePulse 2.5s infinite;
}
@keyframes livePulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  50%      { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: var(--t);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

/* Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.nav-divider {
  width: 1px; height: 18px;
  background: var(--border);
  margin: 0 4px;
}
.lang-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  transition: var(--t);
}
.lang-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: rgba(255,255,255,0.05);
}
.nav-icon {
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--t);
  border: 1px solid transparent;
}
.nav-icon:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
  border-color: var(--border);
}

/* =========================================
   LAYOUT
   ========================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}
.section { padding: 100px 0; }
.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-label::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--text-muted);
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 14px;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 500px;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 48px;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--t);
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--text-primary);
  color: var(--bg);
}
.btn-primary:hover {
  background: rgba(255,255,255,0.88);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.1);
}
.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: rgba(255,255,255,0.04);
  transform: translateY(-1px);
}
.btn i { font-size: 0.8rem; }

/* =========================================
   HERO (index.html)
   ========================================= */
.hero {
  min-height: 100vh;
  padding-top: var(--navbar-height);
  display: flex;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: livePulse 2.5s infinite;
}
.hero-name {
  display: block;
  font-size: clamp(4.5rem, 9vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin-bottom: 12px;
}
.hero-name .period { color: var(--text-secondary); }
.hero-greeting {
  display: block;
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0;
  margin-bottom: 10px;
}
.hero-tagline {
  display: block;
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  margin-top: 12px;
  margin-bottom: 28px;
}
.hero-description {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 500px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}
.hero-stats {
  display: flex;
  gap: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* =========================================
   SKILL CARDS
   ========================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
  margin-top: 40px;
}
.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--t);
  cursor: default;
}
.skill-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}
.skill-card img {
  width: 38px; height: 38px;
  object-fit: contain;
  filter: grayscale(1) brightness(1.6);
  transition: var(--t);
}
.skill-card:hover img {
  filter: grayscale(0) brightness(1);
  transform: scale(1.05);
}
.skill-name {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* =========================================
   PROJECT CARDS
   ========================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--ts);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.55);
}
.project-card-image {
  height: 170px;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.project-card-image img {
  width: 68px; height: 68px;
  object-fit: contain;
  filter: grayscale(0.3) brightness(0.9);
  transition: var(--ts);
}
.project-card:hover .project-card-image img {
  transform: scale(1.08);
  filter: grayscale(0) brightness(1);
}
.project-card-content {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.project-card-description {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 18px;
}
.project-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 100px;
}
.project-card-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.project-status {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 7px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.project-status::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
}
.project-status.active::before  { background: #22c55e; }
.project-status.completed::before { background: var(--text-muted); }
.project-arrow {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--t);
}
.project-card:hover .project-arrow {
  color: var(--text-primary);
  transform: translateX(5px);
}

/* =========================================
   PAGE HEADER (non-home pages)
   ========================================= */
.page-header {
  padding-top: calc(var(--navbar-height) + 80px);
  padding-bottom: 64px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}

/* =========================================
   ABOUT PAGE
   ========================================= */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding-top: calc(var(--navbar-height) + 80px);
  padding-bottom: 80px;
}
.about-photo-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}
.about-photo {
  width: 280px; height: 280px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 1px solid var(--border);
  filter: grayscale(15%);
  position: relative;
  z-index: 1;
}
.about-photo-frame {
  position: absolute;
  width: 280px; height: 280px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  top: 16px; left: calc(50% - 140px + 16px);
  z-index: 0;
}
.about-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 20px;
}
.about-cta { margin-top: 32px; }

/* =========================================
   AMBITION CARDS
   ========================================= */
.ambitions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 48px;
}
.ambition-card {
  padding: 30px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--t);
}
.ambition-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}
.ambition-icon {
  width: 44px; height: 44px;
  object-fit: contain;
  margin-bottom: 20px;
  opacity: 0.75;
  filter: grayscale(0.3);
}
.ambition-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.ambition-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* =========================================
   CONTACT PAGE
   ========================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  margin-top: 56px;
}
.contact-info { display:flex; flex-direction:column; gap:14px; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--t);
  color: inherit;
}
.contact-link:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(5px);
}
.contact-icon {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  flex-shrink: 0;
  color: var(--text-secondary);
}
.contact-link:hover .contact-icon { color: var(--text-primary); }
.contact-link-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 3px;
}
.contact-link-value {
  font-size: 0.9rem;
  font-weight: 500;
}

/* Form */
.contact-form { display:flex; flex-direction:column; gap:16px; }
.form-group  { display:flex; flex-direction:column; gap:6px; }
.form-label  { font-size:0.78rem; font-weight:600; color:var(--text-secondary); }
.form-input, .form-textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: var(--t);
  outline: none;
  width: 100%;
}
.form-input:focus, .form-textarea:focus {
  border-color: rgba(255,255,255,0.28);
  background: var(--bg-card-hover);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-textarea { resize:vertical; min-height:130px; }
.form-success {
  display:none;
  align-items:center;
  gap:10px;
  padding:14px 18px;
  background:rgba(34,197,94,0.08);
  border:1px solid rgba(34,197,94,0.2);
  border-radius:var(--radius);
  color:#22c55e;
  font-size:0.875rem;
  font-weight:500;
  margin-top:8px;
}
.form-success.show { display:flex; }

/* =========================================
   PROJECT DETAIL PAGE
   ========================================= */
.project-detail {
  padding-top: calc(var(--navbar-height) + 60px);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 36px;
  transition: var(--t);
}
.back-link:hover { color: var(--text-primary); transform: translateX(-3px); }
.project-detail-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: start;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 60px;
}
.project-detail-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 18px;
}
.project-detail-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: 24px;
}
.project-detail-meta {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-width: 220px;
  flex-shrink: 0;
}
.meta-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 4px;
}
.meta-value {
  font-size: 0.9rem;
  font-weight: 500;
}
.project-body section {
  margin-bottom: 56px;
}
.project-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.project-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 14px;
}
.project-body ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.project-body ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.project-body ul li::before {
  content: '→';
  color: var(--text-muted);
  flex-shrink: 0;
  margin-top: 1px;
}

/* =========================================
   DEMO / LIVE LINKS
   ========================================= */

/* Card footer — right side groups demo pill + arrow */
.card-footer-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Small "Live →" pill on project cards */
.card-demo-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: var(--t);
  text-decoration: none;
  white-space: nowrap;
}
.card-demo-btn i { font-size: 0.6rem; }
.card-demo-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: rgba(255,255,255,0.05);
}

/* Full-width action buttons inside project detail meta sidebar */
.meta-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--t);
  text-decoration: none;
  border: none;
  cursor: pointer;
  /* Primary: white button */
  background: var(--text-primary);
  color: var(--bg);
}
.meta-action-btn:hover {
  background: rgba(255,255,255,0.88);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,255,255,0.08);
}
.meta-action-btn.secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.meta-action-btn.secondary:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: rgba(255,255,255,0.04);
  box-shadow: none;
}

/* =========================================
   FOOTER
   ========================================= */
footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
}
.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-socials { display:flex; gap:8px; }
.footer-social-link {
  width: 30px; height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--t);
}
.footer-social-link:hover { color:var(--text-primary); background:rgba(255,255,255,0.05); }

/* =========================================
   DIVIDER
   ========================================= */
.h-divider { height:1px; background:var(--border); margin: 80px 0; }

/* =========================================
   ANIMATIONS
   ========================================= */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.fade-in.visible { opacity:1; transform:translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px) {
  .about-hero           { grid-template-columns:1fr; gap:48px; }
  .about-photo-wrapper  { order:-1; }
  .contact-grid         { grid-template-columns:1fr; gap:40px; }
  .ambitions-grid       { grid-template-columns:repeat(2,1fr); }
  .project-detail-header{ grid-template-columns:1fr; }
  .project-detail-meta  { min-width:unset; }
}
@media (max-width: 768px) {
  .container, .nav-container, .footer-container { padding-left:20px; padding-right:20px; }
  .nav-links            { display:none; }
  .hero-stats           { gap:28px; flex-wrap:wrap; }
  .projects-grid        { grid-template-columns:1fr; }
  .ambitions-grid       { grid-template-columns:1fr; }
  .section              { padding:64px 0; }
  .page-header          { padding-top: calc(var(--navbar-height) + 48px); padding-bottom:40px; margin-bottom:40px; }
  .footer-container     { flex-direction:column; gap:14px; text-align:center; }
  .section-header       { flex-direction:column; align-items:flex-start; }
}
@media (max-width: 480px) {
  .hero-name { font-size:clamp(3rem, 14vw, 5rem); }
  .skills-grid { grid-template-columns:repeat(3,1fr); }
}