/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  padding: 5rem 0;
  border-top: 1px solid oklch(from var(--border) l c h / 0.3);
}

@media (min-width: 640px) {
  .about {
    padding: 7rem 0;
  }
}

.about-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.about-card {
  position: relative;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: oklch(from var(--card) l c h / 0.4);
  backdrop-filter: blur(12px);
  transition: all 0.4s ease;
}

@media (min-width: 640px) {
  .about-card {
    padding: 2rem;
  }
}

.about-card:hover {
  border-color: oklch(from var(--primary) l c h / 0.4);
  background: oklch(from var(--card) l c h / 0.6);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px -8px oklch(0 0 0 / 0.12);
}

.dark .about-card:hover {
  box-shadow: 0 12px 40px -8px oklch(0 0 0 / 0.4);
}

.about-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: oklch(from var(--primary) l c h / 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.about-icon svg {
  width: 24px;
  height: 24px;
}

.about-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.about-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted-foreground);
}

/* About Terminal */
.about-terminal {
  position: relative;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: hsl(240, 1.59%, 24.71%);
  padding-top: 2.5rem;
  overflow: hidden;
}

.about-terminal .terminal-dots {
  position: absolute;
  top: 16px;
  left: 16px;
}

.about-terminal .terminal-title {
  position: absolute;
  top: 10px;
  right: 3%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.796);
}

.about-terminal-content {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.9);
  background: hsl(0, 0%, 11.37%);
}

.terminal-comment { color: oklch(0.6 0.1 140); }
.terminal-keyword { color: oklch(0.7 0.2 280); }
.terminal-variable { color: oklch(0.8 0.15 200); }
.terminal-boolean { color: oklch(0.7 0.2 30); }
.terminal-string { color: oklch(0.75 0.15 85); }
.terminal-indent { padding-left: 1.5rem; }

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
  padding: 5rem 0;
  border-top: 1px solid oklch(from var(--border) l c h / 0.3);
}

@media (min-width: 640px) {
  .skills {
    padding: 7rem 0;
  }
}

.skills-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.skill-category {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: oklch(from var(--card) l c h / 0.4);
  backdrop-filter: blur(12px);
  padding: 1.5rem;
  transition: all 0.4s ease;
}

.skill-category:hover {
  border-color: oklch(from var(--primary) l c h / 0.4);
  background: oklch(from var(--card) l c h / 0.6);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid oklch(from var(--border) l c h / 0.5);
}

.skill-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.skill-icon.lang { background: oklch(0.7 0.15 250 / 0.15); color: oklch(0.7 0.15 250); }
.skill-icon.db { background: oklch(0.7 0.15 150 / 0.15); color: oklch(0.7 0.15 150); }
.skill-icon.ai { background: oklch(0.75 0.15 300 / 0.15); color: oklch(0.75 0.15 300); }
.skill-icon.framework { background: oklch(0.75 0.15 85 / 0.15); color: oklch(0.75 0.15 85); }

.skill-icon svg {
  width: 20px;
  height: 20px;
}

.skill-header h3 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skill-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.skill-name {
  font-size: 0.875rem;
  font-weight: 500;
}

.skill-bar {
  grid-column: 1 / -1;
  height: 4px;
  background: oklch(from var(--border) l c h / 0.5);
  border-radius: 2px;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), oklch(from var(--primary) l c h / 0.7));
  border-radius: 2px;
  width: 0;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-level {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  text-transform: uppercase;
}

/* Skill Cloud */
.skill-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px dashed oklch(from var(--border) l c h / 0.8);
  background: oklch(from var(--card) l c h / 0.2);
}

.skill-tag {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  border: 1px solid oklch(from var(--border) l c h / 0.6);
  background: oklch(from var(--secondary) l c h / 0.4);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  transition: all 0.3s ease;
  cursor: default;
}

.skill-tag:hover {
  border-color: oklch(from var(--primary) l c h / 0.5);
  background: oklch(from var(--primary) l c h / 0.1);
  color: var(--primary);
  transform: translateY(-2px);
}

.skill-tag.primary {
  border-color: oklch(from var(--primary) l c h / 0.4);
  background: oklch(from var(--primary) l c h / 0.1);
  color: var(--primary);
}

/* ============================================
   EXPERIENCE TIMELINE SECTION
   ============================================ */
.experience {
  padding: 5rem 0;
  border-top: 1px solid oklch(from var(--border) l c h / 0.3);
}

@media (min-width: 640px) {
  .experience {
    padding: 7rem 0;
  }
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), oklch(from var(--primary) l c h / 0.3), transparent);
}

@media (min-width: 640px) {
  .timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .timeline-item {
    padding-left: 0;
    width: 50%;
  }
  
  .timeline-item:nth-child(odd) {
    margin-left: 0;
    padding-right: 3rem;
  }
  
  .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: 3rem;
  }
}

.timeline-marker {
  position: absolute;
  left: 11px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid var(--background);
  box-shadow: 0 0 0 2px var(--primary);
  z-index: 10;
}

@media (min-width: 640px) {
  .timeline-marker {
    left: auto;
    right: -10px;
  }
  
  .timeline-item:nth-child(even) .timeline-marker {
    right: auto;
    left: -10px;
  }
}

.timeline-content {
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: oklch(from var(--card) l c h / 0.4);
  backdrop-filter: blur(12px);
  transition: all 0.4s ease;
}

.timeline-content:hover {
  border-color: oklch(from var(--primary) l c h / 0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px -8px oklch(0 0 0 / 0.12);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.timeline-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
}

.timeline-org {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  margin-bottom: 0.75rem;
}

.timeline-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted-foreground);
  margin-bottom: 1rem;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-tag {
  padding: 0.25rem 0.625rem;
  border-radius: 6px;
  border: 1px solid oklch(from var(--border) l c h / 0.8);
  background: oklch(from var(--secondary) l c h / 0.6);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  transition: all 1s ease;
  cursor: text;
}

.timeline-tag:hover {
  border-color: oklch(from var(--primary) l c h / 0.5);
  background: oklch(from var(--primary) l c h / 0.1);
  color: var(--primary);
}

/* ============================================
   METRICS SECTION
   ============================================ */
.metrics {
  padding: 5rem 0;
  border-top: 1px solid oklch(from var(--border) l c h / 0.3);
  background: linear-gradient(180deg, transparent, oklch(from var(--primary) l c h / 0.03), transparent);
}

@media (min-width: 640px) {
  .metrics {
    padding: 7rem 0;
  }
}

.section-header.center {
  text-align: center;
}

.section-header.center .section-description {
  margin-left: auto;
  margin-right: auto;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 640px) {
  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.metric-card {
  position: relative;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: oklch(from var(--card) l c h / 0.4);
  backdrop-filter: blur(12px);
  text-align: center;
  transition: all 0.4s ease;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, oklch(from var(--primary) l c h / 0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.metric-card:hover {
  border-color: oklch(from var(--primary) l c h / 0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px -8px oklch(0 0 0 / 0.12);
}

.metric-card:hover::before {
  opacity: 1;
}

.metric-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  border-radius: 12px;
  background: oklch(from var(--primary) l c h / 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.metric-icon svg {
  width: 24px;
  height: 24px;
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--foreground);
  line-height: 1;
  display: inline;
}

.metric-suffix {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-left: 0.25rem;
}

.metric-label {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
}

.metric-label span {
  display: block;
  font-size: 0.75rem;
  color: var(--muted-foreground);
  font-weight: 400;
  margin-top: 0.25rem;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
  padding: 5rem 0;
  border-top: 1px solid oklch(from var(--border) l c h / 0.3);
}

@media (min-width: 640px) {
  .testimonials {
    padding: 7rem 0;
  }
}

.testimonials-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  position: relative;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: oklch(from var(--card) l c h / 0.4);
  backdrop-filter: blur(12px);
  transition: all 0.4s ease;
}

.testimonial-card:hover {
  border-color: oklch(from var(--primary) l c h / 0.4);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px -8px oklch(0 0 0 / 0.12);
}

.testimonial-quote {
  color: oklch(from var(--primary) l c h / 0.3);
  margin-bottom: 1rem;
}

.testimonial-quote svg {
  width: 32px;
  height: 32px;
}

.testimonial-text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--foreground);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding-top: 1rem;
  border-top: 1px solid oklch(from var(--border) l c h / 0.5);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), oklch(from var(--primary) l c h / 0.7));
  color: var(--primary-foreground);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9375rem;
}

.testimonial-role {
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
  padding: 5rem 0;
  border-top: 1px solid oklch(from var(--border) l c h / 0.3);
  border-bottom: 1px solid oklch(from var(--border) l c h / 0.3);
}

@media (min-width: 640px) {
  .contact {
    padding: 7rem 0;
  }
}

.contact-grid {
  display: grid;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
  }
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 1rem 0;
}

@media (min-width: 640px) {
  .contact-info h2 {
    font-size: 2.5rem;
  }
}

.contact-info > p {
  color: var(--muted-foreground);
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 400px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: oklch(from var(--card) l c h / 0.4);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
}

.contact-method:hover {
  border-color: oklch(from var(--primary) l c h / 0.4);
  background: oklch(from var(--card) l c h / 0.6);
  transform: translateX(4px);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: oklch(from var(--primary) l c h / 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 20px;
  height: 20px;
}

.contact-detail {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-value {
  font-weight: 500;
  color: var(--foreground);
}

/* Contact Terminal Form */
.contact-terminal {
  position: relative;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: hsl(240, 1.59%, 24.71%);
  padding-top: 2.5rem;
  overflow: hidden;
}

.contact-terminal .terminal-dots {
  position: absolute;
  top: 16px;
  left: 16px;
}

.contact-terminal .terminal-title {
  position: absolute;
  top: 10px;
  right: 3%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.796);
}

.contact-form {
  padding: 1.5rem;
  background: hsl(0, 0%, 11.37%);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.5rem;
}

.terminal-prompt-symbol {
  color: var(--primary);
  margin-right: 0.5rem;
}

.terminal-input-field {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid oklch(0.3 0.02 260);
  padding: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
  outline: none;
  transition: border-color 0.3s ease;
}

.terminal-input-field:focus {
  border-color: var(--primary);
}

.terminal-input-field::placeholder {
  color: oklch(0.4 0.02 260);
}

textarea.terminal-input-field {
  resize: vertical;
  min-height: 80px;
}

.terminal-cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--primary);
}

.terminal-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.875rem 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--primary);
  background: oklch(from var(--primary) l c h / 0.1);
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 1rem;
}

.terminal-submit:hover {
  background: var(--primary);
  color: var(--primary-foreground);
  transform: translateY(-2px);
}

.terminal-submit svg {
  width: 18px;
  height: 18px;
}

/* Form Success State */
.contact-form.success .terminal-input-field {
  border-color: oklch(0.7 0.15 150);
}

.contact-form.success .terminal-submit {
  background: oklch(0.7 0.15 150 / 0.2);
  border-color: oklch(0.7 0.15 150);
  color: oklch(0.7 0.15 150);
}