/* ============================================
   PORTFOLIO — Minh Nguyen
   Inspired by pldkhoa.dev
   ============================================ */

/* ---- FONTS & TOKENS ---- */
:root {
  --bg:           #0c0c0c;
  --bg-card:      #131313;
  --bg-card-hover:#181818;
  --bg-glass:     rgba(255,255,255,0.04);
  --border:       rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.22);
  --text:         #ededed;
  --text-muted:   #888;
  --text-dim:     #555;
  --accent:       #ededed;
  --btn-bg:       #1e1e1e;
  --btn-text:     #ededed;
  --radius-card:  14px;
  --radius-btn:   10px;
  --max-w:        1030px;
  --font-mono:    'JetBrains Mono', monospace;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  padding: 36px 0 24px;
}

.header-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.header-identity {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-mark {
  width: 40px;
  height: 40px;
  color: var(--text);
  flex-shrink: 0;
}

.logo-mark svg {
  width: 100%;
  height: 100%;
}

.header-name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.header-role {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 2px;
}

.header-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.header-location {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================
   MAIN
   ============================================ */
.main-content {
  padding-top: 20px;
  padding-bottom: 120px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.about-heading {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.about-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.about-highlight {
  color: var(--text);
  font-weight: 500;
}

/* ============================================
   TAB NAVIGATION (Desktop)
   ============================================ */
.tab-nav {
  margin-bottom: 40px;
}

.tab-nav-inner {
  display: inline-flex;
  position: relative;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 5px;
  gap: 2px;
}

.tab-btn {
  position: relative;
  z-index: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  padding: 7px 22px;
  border-radius: 10px;
  transition: color 0.25s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  color: var(--text);
}

/* Sliding pill indicator */
.tab-indicator {
  position: absolute;
  top: 5px;
  left: 5px;
  height: calc(100% - 10px);
  background: var(--btn-bg);
  border: 1px solid var(--border-hover);
  border-radius: 10px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
  pointer-events: none;
}

/* ============================================
   TAB PANELS
   ============================================ */
.tab-panel {
  display: none;
  animation: fadeUp 0.35s ease forwards;
}
.tab-panel + .tab-panel{
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.tab-panel.active {
  display: block;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Section intro text ---- */
.section-intro {
  margin-bottom: 28px;
}

.section-intro p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================
   CARD GRID
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 580px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

/* ============================================
   MEDIA CARD
   ============================================ */
.media-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 6px;
  gap: 6px;
  transition: border-color 0.4s ease, background 0.3s ease;
  cursor: pointer;
}

.media-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

/* ---- Video area ---- */
.card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.05);
  background: #0f0f0f;
  transition: border-color 0.5s ease;
}

.media-card:hover .card-media {
  border-color: rgba(255,255,255,0.15);
}

.card-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 8px;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (hover: hover) and (pointer: fine) {
  .media-card:hover .card-video {
    transform: scale(1.04);
  }
}

/* ---- Overlay: title + date ---- */
.card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 28px 14px 12px;
  background: linear-gradient(to top, rgba(0,0,0,0.65) 0%, transparent 100%);
}

.card-title {
  font-size: 0.88rem;
  font-weight: 500;
  color: #fff;
  line-height: 1.3;
}

.card-date {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  font-family: var(--font-mono);
  white-space: nowrap;
  margin-left: 8px;
}

/* ---- CTA button row ---- */
.card-footer {
  padding: 0 2px 2px;
}

.card-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 9px 14px;
  background: var(--btn-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--btn-text);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.media-card:hover .card-cta {
  background: #242424;
  border-color: var(--border-hover);
}

.card-cta svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.media-card:hover .card-cta svg {
  transform: translateX(2px);
}

/* ============================================
   FOOTER
   ============================================ */

/* ---- Inspired by block ---- */
.inspired-by {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.inspired-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.inspired-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px dashed var(--text-dim);
  padding-bottom: 1px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.inspired-link:hover {
  color: var(--text);
  border-bottom-color: transparent;
}

.inspired-link svg {
  width: 11px;
  height: 11px;
  opacity: 0.6;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.inspired-link:hover svg {
  opacity: 1;
  transform: translate(1px, -1px);
}
.site-footer {
  padding: 48px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.social-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.social-link:hover {
  color: var(--text);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.footer-credit {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-credit .heart {
  color: #e05;
  font-style: normal;
}

/* ============================================
   MOBILE BOTTOM NAV BAR
   ============================================ */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 10px 20px 20px;
  background: linear-gradient(to top, var(--bg) 60%, transparent 100%);
}

/* Show only on mobile */
@media (max-width: 579px) {
  .mobile-nav {
    display: flex;
    justify-content: center;
    gap: 8px;
  }

  /* Add bottom padding so cards aren't hidden under mobile nav */
  .main-content {
    padding-bottom: 100px;
  }
}

.mobile-tab-btn {
  flex: 1;
  max-width: 160px;
  padding: 10px 0;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.mobile-tab-btn.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}