/* ═══════════════════════════════════════
   sections.css — Experience, Projects,
   Skills, Education, Courses, Contact
═══════════════════════════════════════ */

/* ══════════════════
   EXPERIENCE
══════════════════ */

#experience { background: transparent; }

.exp-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 28px;
}

.exp-item {
  position: relative;
  padding-bottom: 40px;
  display: flex;
}

.exp-line {
  position: absolute;
  left: -28px;
  top: 0;
  bottom: 0;
  width: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.exp-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  margin-top: 8px;
  z-index: 2;
  transition: background var(--dur), box-shadow var(--dur);
}
.exp-item:hover .exp-dot {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(99, 179, 237, 0.5);
}
.exp-dot.latest {
  background: var(--accent);
  box-shadow: 0 0 8px rgba(99, 179, 237, 0.4);
}

.exp-connector {
  flex: 1;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin-top: 4px;
}

.exp-card {
  flex: 1;
}

.exp-hd {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.exp-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.exp-company-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px 4px 6px;
  transition: border-color var(--dur), background var(--dur);
}
.exp-company-link:hover {
  border-color: var(--border-hover);
  background: rgba(255,255,255,.06);
}
.exp-company-logo {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.exp-company-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.exp-company-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.exp-company-ext {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.exp-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  white-space: nowrap;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 100px;
  flex-shrink: 0;
}

.exp-pts {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.exp-pts li {
  padding-left: 16px;
  position: relative;
}
.exp-pts li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
}

.tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tech-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 3px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
}

/* ══════════════════
   PROJECTS
══════════════════ */

#projects { background: rgba(0, 0, 0, 0.08); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: var(--gap);
}

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card .card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.10em;
  margin-bottom: 12px;
}

.project-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.2;
}

.project-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.project-desc li {
  list-style: none;
  padding-left: 14px;
  position: relative;
  margin-bottom: 5px;
}

.project-desc li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  }

/* ══════════════════
   SKILLS
══════════════════ */

#skills { background: transparent; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: var(--gap);
}

.skill-group-title {
  font-family: var(--font-mono);
  font-size: 0.70rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag.expert {
  background: linear-gradient(135deg, rgba(245,158,11,.10), rgba(251,191,36,.04));
  border: 1px solid rgba(245,158,11,.32);
  color: #d97706;
  padding-right: 26px;
  font-weight: 500;
  position: relative;
}
[data-theme="light"] .tag.expert { color: #92400e; }
.tag.expert:hover { background: linear-gradient(135deg, rgba(245,158,11,.18), rgba(251,191,36,.08)); border-color: rgba(245,158,11,.55); color: #b45309; }

.tag.expert::after {
  content: '★';
  position: absolute; right: 7px; top: 50%; transform: translateY(-50%);
  font-size: 9px; color: #f59e0b; line-height: 1;
  filter: drop-shadow(0 0 3px rgba(245,158,11,.6));
}

.tag.strongest {
  background: linear-gradient(135deg, rgba(245,158,11,.18), rgba(234,179,8,.08));
  border: 1.5px solid rgba(245,158,11,.55);
  color: #d97706;
  font-weight: 600;
  padding-right: 30px;
  box-shadow: 0 2px 12px rgba(245,158,11,.15), inset 0 0 0 1px rgba(255,215,0,.08);
  position: relative;
  overflow: hidden;
}
.tag.strongest::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 50%; height: 100%;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.4), transparent);
  transform: skewX(-20deg);
  animation: shine 3s infinite;
}
@keyframes shine {
  0% { left: -100%; }
  20% { left: 200%; }
  100% { left: 200%; }
}
[data-theme="light"] .tag.strongest { color: #78350f; box-shadow: 0 2px 12px rgba(245,158,11,.10); }
.tag.strongest:hover { box-shadow: 0 4px 18px rgba(245,158,11,.28); border-color: rgba(245,158,11,.8); }

.tag.strongest::after {
  content: '⭐';
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 11px; line-height: 1;
  filter: drop-shadow(0 0 4px rgba(245,158,11,.7));
  animation: star-pulse 2.5s ease-in-out infinite;
}
@keyframes star-pulse { 0%,100%{filter:drop-shadow(0 0 4px rgba(245,158,11,.7))} 50%{filter:drop-shadow(0 0 8px rgba(245,158,11,1))} }

/* ══════════════════
   EDUCATION & CERTS
══════════════════ */

#education { background: rgba(0, 0, 0, 0.08); }

.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.edu-card-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
  display: block;
}

.edu-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text);
  margin-bottom: 4px;
}

.edu-card-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.edu-card-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cert-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 54px;
}

.cert-banner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  border-radius: 12px;
  padding: 20px;
  transition: border-color .22s, transform .22s, box-shadow .22s;
  cursor: default;
  border: 1px solid transparent;
  background: var(--bg-card);
  height: 100%;
}

.cert-banner:hover {
  transform: translateY(-2px);
}

.cert-logo {
  flex-shrink: 0;
  height: 52px;
  display: flex;
  align-items: center;
}
.cert-logo-nvidia { height: 42px; }

.cert-logo svg {
  display: block;
  height: 100%;
  width: auto;
}

.cert-body {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.cert-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  transition: color var(--dur);
  line-height: 1.35;
}

.cert-sub {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 6px;
}

.cert-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(255,255,255,.92);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 6px;
  padding: 5px 12px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: auto;
}

/* AWS */
.cert-aws {
  background: linear-gradient(135deg, rgba(245,158,11,.10), rgba(251,191,36,.03));
  border-color: rgba(245,158,11,.28);
}
.cert-aws .cert-badge {
  color: rgba(245,158,11,.90);
  background: rgba(245,158,11,.08);
  border-color: rgba(245,158,11,.22);
}
.cert-aws:hover {
  border-color: rgba(245,158,11,.52);
  box-shadow: 0 10px 24px rgba(245,158,11,.08);
}
.cert-aws-i { font-size: 38px; color: #ff9900; flex-shrink: 0; display: flex; align-items: center; justify-content: center; height: 52px; }

/* NVIDIA */
.cert-nvidia {
  background: linear-gradient(135deg, rgba(118,185,0,.12), rgba(17,17,17,.03));
  border-color: rgba(118,185,0,.26);
}
.cert-nvidia .cert-badge {
  color: rgba(118,185,0,.95);
  background: rgba(118,185,0,.10);
  border-color: rgba(118,185,0,.22);
}
.cert-nvidia:hover {
  border-color: rgba(118,185,0,.52);
  box-shadow: 0 10px 24px rgba(118,185,0,.08);
}

/* CCE */
.cert-cce {
  background: linear-gradient(135deg, rgba(139,92,246,.12), rgba(139,92,246,.03));
  border-color: rgba(139,92,246,.22);
}
.cert-cce .cert-badge {
  color: rgba(139,92,246,.95);
  background: rgba(139,92,246,.08);
  border-color: rgba(139,92,246,.25);
}
.cert-cce:hover {
  border-color: rgba(139,92,246,.52);
  box-shadow: 0 10px 24px rgba(139,92,246,.12);
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cert-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  transition: border-color var(--dur), background var(--dur);
}

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

.cert-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.cert-name {
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 2px;
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.70rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

@media (max-width: 640px) {
  .cert-container {
    grid-template-columns: 1fr;
  }
  .cert-banner {
    padding: 16px;
    gap: 12px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .cert-logo {
    width: 100%;
    max-width: 180px;
    height: auto;
    aspect-ratio: 170 / 64;
  }
  .cert-logo-nvidia { max-width: 160px; }
  .cert-body {
    width: 100%;
  }
  .cert-name {
    font-size: 14px;
  }
  .cert-sub {
    font-size: 11px;
  }
  .cert-badge {
    margin-top: 4px;
    align-self: center;
  }
}

/* ══════════════════
   COURSES
══════════════════ */

#courses { background: transparent; }

.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(195px, 1fr)); gap: 10px; }
.course-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 11px; padding: 14px 16px; display: flex; flex-direction: column; gap: 6px; transition: border-color var(--dur), transform var(--dur), background var(--dur); }
.course-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.course-org { font-family: var(--font-mono); font-size: 9.5px; color: var(--accent); letter-spacing: .08em; text-transform: uppercase; }
.course-name { font-size: 13px; font-weight: 500; color: var(--text); line-height: 1.4; transition: color var(--dur); }
.course-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 4px; }
.course-date { font-family: var(--font-mono); font-size: 10px; color: var(--text-dim); }
.course-hrs { background: rgba(118,228,247,.07); border: 1px solid rgba(118,228,247,.18); border-radius: 4px; padding: 2px 7px; font-family: var(--font-mono); font-size: 10px; color: #76e4f7; }

/* ══════════════════
   CONTACT
══════════════════ */

#contact { background: rgba(0, 0, 0, 0.08); }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.contact-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 20px;
}

.contact-tagline span { color: var(--accent); }

.contact-body {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.c-link { display: inline-flex; align-items: center; gap: 8px; padding: 9px 15px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; font-size: 12.5px; color: var(--text-muted); text-decoration: none; transition: color var(--dur), border-color var(--dur), background var(--dur), transform var(--dur); }
.c-link i { font-size: 13px; color: var(--accent); transition: color var(--dur); display: flex; align-items: center; justify-content: center; }
.c-link:hover { color: var(--text); border-color: var(--border-hover); background: var(--bg-card-hover); transform: translateY(-2px); }

@media (max-width: 640px) {
  .contact-inner { grid-template-columns: 1fr; }
}
/* ══════════════════
   NEW PROJECTS LAYOUT (from Projects.html)
══════════════════ */
.pg-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pg-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 13px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--dur), transform var(--dur), box-shadow var(--dur), background var(--dur);
}

.pg-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0; transition: opacity var(--dur);
}

.pg-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 18px 52px rgba(0,0,0,.30); }
.pg-card:hover::before { opacity: 1; }

.pg-card.featured { grid-column: span 2; display: grid; grid-template-columns: 1.2fr .8fr; }
.pg-card.featured .pg-img-wrap { height: 100%; }
.pg-card.featured .pg-img { height: 100%; }

.pg-img-wrap { overflow: hidden; flex-shrink: 0; }
.pg-img {
  width: 100%; height: 160px;
  object-fit: cover; display: block;
  background: var(--bg-card);
  transition: transform .45s ease;
}
.pg-card:hover .pg-img { transform: scale(1.05); }

.pg-placeholder {
  width: 100%; height: 160px;
  background: linear-gradient(135deg, var(--bg-body), var(--bg-card));
  display: flex; align-items: center; justify-content: center;
  font-size: 48px; color: var(--border-hover);
}
.pg-card.featured .pg-placeholder { height: 100%; }

.pg-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.pg-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.pg-icon {
  width: 32px; height: 32px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border-hover);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--accent);
  flex-shrink: 0;
}
.pg-year { font-family: var(--font-mono); font-size: 10px; color: var(--text-dim); }

.pg-title {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 700;
  color: var(--text);
  transition: color var(--dur);
}
.pg-desc { font-size: 12.5px; color: var(--text-muted); line-height: 1.68; }

.pg-features { display: flex; flex-direction: column; gap: 4px; }
.pg-feat { display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-muted); }
.pg-feat i { font-size: 11px; color: var(--accent); width: 14px; text-align: center; }

.pg-stack { display: flex; flex-wrap: wrap; gap: 4px; margin-top: auto;}
.pg-actions { display: flex; gap: 8px; margin-top: 10px; padding-top: 4px; }

.bx {
  display: inline-flex; align-items: center; gap: 5px; padding: 5px 12px; border-radius: 6px; font-size: 11px; font-weight: 500; text-decoration: none; border: none; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s, color .15s, border-color .15s; position: relative; overflow: hidden;
}
.bx::after { content: ''; position: absolute; inset: 0; border-radius: inherit; opacity: 0; background: rgba(255,255,255,.15); transition: opacity .2s; }
.bx:hover::after { opacity: 1; }
.bx.out { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.bx.out:hover { color: var(--text); border-color: var(--border-hover); transform: translateY(-1px); }
.bx.solid { background: var(--accent); color: #fff; font-weight: 600; box-shadow: 0 2px 10px rgba(99,179,237,.20); }
.bx.solid:hover { transform: translateY(-2px); box-shadow: 0 5px 20px rgba(99,179,237,.38); }

@media (max-width: 600px) {
  .pg-grid { grid-template-columns: 1fr; }
  .pg-card.featured { grid-column: span 1; display: flex; flex-direction: column; }
  .pg-card.featured .pg-img-wrap { height: auto; }
  .pg-card.featured .pg-img { height: 160px; }
}