/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn--primary {
  background: var(--text-primary);
  color: var(--bg);
  border-color: var(--text-primary);
}

.btn--primary:hover {
  opacity: 0.85;
  letter-spacing: 0.04em;
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--border-hover);
  background: var(--accent-dim);
}

/* ============================================
   THEME & LANGUAGE
   ============================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: border-color var(--duration-normal) var(--ease-in-out),
              color var(--duration-normal) var(--ease-in-out);
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.lang-switch {
  display: flex;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lang-switch__btn {
  padding: 0.35rem 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  background: transparent;
  color: var(--text-muted);
  border: none;
  cursor: pointer;
  transition: color var(--duration-fast), background var(--duration-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lang-switch__btn.active {
  color: var(--text-primary);
  background: var(--accent-dim);
}

.lang-switch__btn:hover:not(.active) {
  color: var(--text-secondary);
}

/* ============================================
   ABOUT
   ============================================ */
.about__content {
  max-width: 640px;
  margin-bottom: var(--space-xl);
}

.about__content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

/* Stats — Terminal style */
.stats-terminal {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-lg) var(--space-xl);
  padding-top: var(--space-xl);
  max-width: 480px;
  font-family: var(--font-mono);
}

.stats-terminal__label {
  position: absolute;
  top: -0.65em;
  left: var(--space-md);
  background: var(--bg);
  padding: 0 var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

body.light .stats-terminal__label {
  background: var(--bg);
}

.stats-terminal__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}

.stats-terminal__row:last-child {
  border-bottom: none;
}

.stats-terminal__key {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.stats-terminal__value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stats-terminal__value .stats__number {
  font-family: var(--font-mono);
  font-size: inherit;
  font-weight: inherit;
  color: inherit;
  line-height: 1;
}

/* ============================================
   EXPERIENCE — Timeline
   ============================================ */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--border);
}

.timeline__entry {
  position: relative;
  margin-bottom: var(--space-2xl);
}

.timeline__entry:last-child {
  margin-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--space-xl));
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  border: 2px solid var(--bg);
}

.timeline__period {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.timeline__subtitle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
}

.timeline__title {
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}

.timeline__list {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-md);
}

.timeline__list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

.timeline__details {
  display: none;
}

.timeline__details.expanded {
  display: block;
}

.timeline__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.4rem 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--duration-normal) var(--ease-in-out);
  margin-bottom: var(--space-lg);
}

.timeline__toggle:hover {
  color: var(--text-primary);
}

.timeline__toggle i {
  font-size: 0.7rem;
  transition: transform var(--duration-normal) var(--ease-out);
}

.timeline__toggle.active i {
  transform: rotate(180deg);
}

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

.timeline__tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--accent-dim);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
}

/* ============================================
   PROJECTS — Featured + Editorial List
   ============================================ */
.project-featured {
  display: block;
  text-decoration: none;
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-md);
  transition: padding-left var(--duration-normal) var(--ease-out);
}

.project-featured:hover {
  padding-left: var(--space-lg);
}

.project-featured__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.project-featured__number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.project-featured__title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
  flex: 1;
}

.project-featured__arrow {
  font-size: 1rem;
  color: var(--text-muted);
  opacity: 0;
  transform: translate(-8px, 0);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
}

.project-featured:hover .project-featured__arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.project-featured__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: var(--space-md);
}

.project-featured__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-featured__tech span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--accent-dim);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
}

/* Project list */
.project-list {
  display: flex;
  flex-direction: column;
}

.project-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: padding-left var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
}

.project-list__item:hover {
  padding-left: var(--space-lg);
  background: linear-gradient(90deg, var(--accent-dim) 0%, transparent 100%);
}

.project-list__body {
  flex: 1;
  min-width: 0;
}

.project-list__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: 0.25rem;
}

.project-list__number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 2rem;
}

.project-list__title {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.project-list__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: calc(2rem + var(--space-md));
}

.project-list__tech {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.project-list__arrow {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
}

.project-list__item:hover .project-list__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================
   SKILLS — Marquee Ticker
   ============================================ */
.skills-marquee {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.skills-marquee__row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border);
}

.skills-marquee__row:last-child {
  border-bottom: none;
}

.skills-marquee__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-shrink: 0;
  width: 5.5rem;
}

.skills-marquee__track {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.skills-marquee__track:hover .skills-marquee__content {
  animation-play-state: paused;
}

.skills-marquee__content {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  animation: marquee-scroll var(--marquee-speed) linear infinite;
}

.skills-marquee__track[data-direction="right"] .skills-marquee__content {
  animation-name: marquee-scroll-reverse;
}

.skills-marquee__track:nth-child(2) .skills-marquee__content {
  animation-duration: calc(var(--marquee-speed) * 1.3);
}

.skills-marquee__track:nth-child(3) .skills-marquee__content {
  animation-duration: calc(var(--marquee-speed) * 0.9);
}

.skills-marquee__content span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
  padding: 0.4rem 0;
}

.skills-marquee__content span::after {
  content: '\00B7';
  margin: 0 var(--space-lg);
  color: var(--text-muted);
  font-weight: 700;
}

/* ============================================
   EDUCATION
   ============================================ */
.edu-degree {
  margin-bottom: var(--space-lg);
}

.edu-degree__logos {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.edu-degree__logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.edu-degree__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.edu-degree__university {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.edu-degree__period {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Certifications — Inline list */
.edu-certs {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-lg);
}

.edu-certs li {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}

.edu-certs li:last-child {
  border-bottom: none;
}

.edu-certs__year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 3rem;
}

.edu-certs__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-normal) var(--ease-in-out);
}

.edu-certs__link:hover {
  color: var(--text-primary);
}

.edu-certs__link i {
  font-size: 0.65rem;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.edu-certs__link:hover i {
  opacity: 1;
}

/* Recognitions */
.edu-recognitions {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.edu-recognition h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.edu-recognition p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.edu-recognition__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-normal);
}

.edu-recognition__link:hover {
  color: var(--text-primary);
}

.edu-recognition__link i {
  font-size: 0.7rem;
  transition: transform var(--duration-normal);
}

.edu-recognition__link:hover i {
  transform: translateX(3px);
}

/* Testimonial — Pull quote */
.pull-quote {
  border-left: 2px solid var(--border-hover);
  padding-left: var(--space-xl);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
  max-width: 640px;
}

.pull-quote__text {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.pull-quote__footer {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.pull-quote__author {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pull-quote__role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ============================================
   CONTACT
   ============================================ */
.contact-hero {
  margin-bottom: var(--space-lg);
}

.contact-hero__prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.contact-hero__email {
  display: inline-block;
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
  position: relative;
  line-height: 1.4;
}

.contact-hero__email::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-slow) var(--ease-out);
}

.contact-hero__email:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Contact social links */
.contact-social {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.contact-social__link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  transition: color var(--duration-normal) var(--ease-in-out);
}

.contact-social__link:hover {
  color: var(--text-primary);
}

.contact-social__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.contact-social__link:hover::after {
  width: 100%;
}

/* Contact Form */
.contact-form {
  margin-top: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: border-color var(--duration-normal),
              box-shadow var(--duration-normal);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--text-muted);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}