/* ============================================================
   PROJECTS PAGE
   ============================================================ */

.projects-hero {
  padding-block: var(--space-20) var(--space-10);
  border-bottom: 1px solid var(--color-border);
}

/* ── Filter Bar ──────────────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-12);
  position: sticky;
  top: var(--nav-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  z-index: 10;
  padding-inline: clamp(1.5rem, 5vw, 6rem);
  margin-inline: calc(-1 * clamp(1.5rem, 5vw, 6rem));
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  background: transparent;
  transition: all var(--duration-fast);
}

.filter-btn:hover {
  border-color: var(--color-text-primary);
  color: var(--color-text-primary);
}

.filter-btn.active {
  background: var(--color-text-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-text-primary);
}

/* ── Projects Grid ───────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-24);
}

/* ── Project Item (for filtering) ────────────────────────── */
.project-item {
  transition: opacity var(--duration-base), transform var(--duration-base);
}

.project-item.hidden {
  display: none;
}

@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .projects-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   EXPERIENCE PAGE
   ============================================================ */

.experience-hero {
  padding-block: var(--space-20) var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

/* ── Timeline ────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-block: var(--space-16);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
  transform: translateX(-50%);
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
  align-items: start;
}

.timeline-item:nth-child(odd) .timeline-card {
  grid-column: 1;
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-card {
  grid-column: 3;
  text-align: left;
}

.timeline-dot {
  grid-column: 2;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-text-primary);
  border: 3px solid var(--color-bg-primary);
  box-shadow: 0 0 0 1px var(--color-border);
  margin-top: var(--space-5);
  position: relative;
  z-index: 1;
}

.timeline-card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg-primary);
  transition: all var(--duration-base);
}

.timeline-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.timeline-years {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.timeline-role {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-1);
}

.timeline-company {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .timeline::before { left: 20px; }
  .timeline-item {
    grid-template-columns: auto 1fr;
    gap: var(--space-4);
  }
  .timeline-dot { grid-column: 1; margin-top: var(--space-4); }
  .timeline-item:nth-child(odd) .timeline-card,
  .timeline-item:nth-child(even) .timeline-card {
    grid-column: 2;
    text-align: left;
  }
}

/* ============================================================
   PROCESS PAGE
   ============================================================ */

.process-hero {
  padding-block: var(--space-20) var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

.process-timeline {
  padding-block: var(--section-gap);
}

.process-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-10);
  padding-block: var(--space-10);
  border-bottom: 1px solid var(--color-border);
  align-items: start;
  transition: background var(--duration-fast);
}

.process-item:first-child { border-top: 1px solid var(--color-border); }
.process-item:hover { background: var(--color-hover-bg); border-radius: var(--radius-lg); }

.process-item__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-black);
  letter-spacing: -0.05em;
  color: var(--color-border);
  line-height: 1;
  padding-top: var(--space-1);
}

.process-item__content {}

.process-item__phase {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.process-item__title {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: var(--weight-black);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
}

.process-item__desc {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 60ch;
}

/* ============================================================
   RESUME PAGE
   ============================================================ */

.resume-page {
  padding-block: var(--space-16) var(--space-32);
}

.resume-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-16);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.resume-section {
  margin-bottom: var(--space-12);
}

.resume-section-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.resume-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.resume-entry-title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-1);
}

.resume-entry-sub {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.resume-entry-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.resume-entry-date {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.resume-skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */

.contact-hero {
  padding-block: var(--space-20) var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  padding-block: var(--section-gap);
  align-items: start;
}

.contact-info__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all var(--duration-fast);
}

.contact-link:hover {
  border-color: var(--color-text-primary);
  background: var(--color-hover-bg);
  transform: translateY(-2px);
}

.contact-link__left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.contact-link__icon {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.contact-link__name {
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
}

.contact-link__handle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.contact-link__arrow {
  opacity: 0;
  transition: opacity var(--duration-fast);
}

.contact-link:hover .contact-link__arrow {
  opacity: 1;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
  .resume-header { flex-direction: column; gap: var(--space-6); }
  .resume-entry { grid-template-columns: 1fr; }
}