/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colors - Light theme */
  --color-bg: #ffffff;
  --color-bg-alt: #d3e3fd;
  --color-surface: #ffffff;
  --color-text: #0a0a0a;
  --color-text-muted: #3c3c3c;
  --color-primary: #ff4a38;
  --color-primary-hover: #B23224;
  --color-border: #d3e3fd;
  --color-border-light: #f0f0f0;
  --color-success: #16a34a;
  --color-error: #dc2626;
  --color-warning: #f59e0b;
  --color-overlay: rgba(0, 0, 0, 0.5);
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-nav-bg: rgba(255, 255, 255, 0.95);
  --color-card-bg: #ffffff;
  --color-code-bg: #f3f4f6;
  --color-scroll-progress: #ff4a38;
  --color-footer: #f5b8b1;
  --tech-tag-border: #d3e3fd;

  /* Typography */

  --font-golos: "Golos Text", sans-serif;
  --font-besley:  "Besley", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8rem);
  --fs-sm: clamp(0.8rem, 0.75rem + 0.3vw, 0.9rem);
  --fs-base: clamp(0.9rem, 0.85rem + 0.3vw, 1rem);
  --fs-md: clamp(1rem, 0.9rem + 0.5vw, 1.2rem);
  --fs-lg: clamp(1.2rem, 1rem + 0.8vw, 1.5rem);
  --fs-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  --fs-2xl: clamp(2rem, 1.5rem + 2vw, 3rem);
  --fs-3xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 70px;
  --radius: 6px;
  --radius-lg: 12px;
  --transition: 200ms ease;
}

/* Dark theme */
[data-theme="dark"] {
  --color-bg: #111111;
  --color-bg-alt: #000;
  --color-surface: #1e1e1e;
  --color-text: #e5e5e5;
  --color-text-muted: #f1f1f1;
  --color-primary: #3b82f6;
  --color-primary-hover: #60a5fa;
  --color-border: #333333;
  --color-border-light: #252525;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-nav-bg: rgba(17, 17, 17, 0.95);
  --color-card-bg: #1e1e1e;
  --color-code-bg: #2a2a2a;
  --color-overlay: rgba(0, 0, 0, 0.7);
  --color-footer: #333333;
  --tech-tag-border: #d3e3fd;

}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #111111;
    --color-bg-alt: #1a1a1a;
    --color-surface: #1e1e1e;
    --color-text: #e5e5e5;
    --color-text-muted: #999999;
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-border: #333333;
    --color-border-light: #252525;
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-nav-bg: rgba(17, 17, 17, 0.95);
    --color-card-bg: #1e1e1e;
    --color-code-bg: #2a2a2a;
    --color-overlay: rgba(0, 0, 0, 0.7);
  }
}

/* ============================================
   Reset & Base
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-besley);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-hover);
}

ul {
  list-style: none;
}

/* Focus indicators */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

hr {
  color: var(--color-bg-alt);
  margin: 3rem auto;
  max-width: 1000px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   Skip Link
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  z-index: 1000;
  font-size: var(--fs-sm);
}

.skip-link:focus {
  top: var(--space-md);
  color: #fff;
}

/* ============================================
   Container
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ============================================
   Scroll Progress
   ============================================ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-scroll-progress);
  z-index: 1001;
  width: 0%;
  transition: none;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--color-nav-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--nav-height);
  transition: background-color var(--transition);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  width: 3rem;
  height: auto;
}

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

.nav__list {
  display: flex;
  gap: var(--space-lg);
}

.nav__link {
  font-family: var(--font-besley);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  padding: var(--space-xs) 0;
  position: relative;
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-primary);
}

.nav__link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-md);
  transition: background-color var(--transition);
}

.nav__theme-toggle:hover {
  background: var(--color-bg-alt);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav__hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 767px) {
  .nav__hamburger {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 998;
  }

  .nav__menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__list {
    flex-direction: column;
    gap: var(--space-md);
  }

  .nav__link {
    font-size: var(--fs-base);
    padding: var(--space-sm) 0;
    display: block;
  }

}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.6rem 1.4rem;
  font-family: var(--font-golos);
  font-size: var(--fs-sm);
  font-weight: 500;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  min-height: 44px;
  text-decoration: none;
  line-height: 1.4;
  text-transform: uppercase;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

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

.btn--secondary:hover {
  background: var(--color-border);
}

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

.btn--outline:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

.btn--sm {
  padding: 0.3rem 0.8rem;
  font-size: var(--fs-xs);
  min-height: 32px;
}

.btn--full {
  width: 100%;
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: var(--space-4xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__title {
  font-family: var(--font-golos);
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-2xl);
  text-align: center;
  position: relative;
}

.section__title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-primary);
  margin: var(--space-sm) auto 0;
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Hero
   ============================================ */
.hero {

  margin: 10% auto 0px auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  padding-bottom: var(--space-4xl);
}

.hero__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xl);
  width: 100%;
  padding: 0px 40px;
}

.hero__text {
  flex: 1;
}

.hero__greeting {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.hero__name {
  font-family: var(--font-golos);
  font-optical-sizing: auto;
  font-style: normal;
  font-size: var(--fs-3xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.hero__roles {
  font-size: var(--fs-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  min-height: 1.8em;
}

.hero__cursor {
  animation: blink 0.8s infinite;
  font-weight: 200;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero__tagline {
  font-family: var(--font-besley);
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.hero__ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__avatar {
  flex: 0 0 280px;
}

.hero__avatar img {
  width: 280px;
  height: 280px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--color-border);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
}

.hero__scroll-arrow {
  display: block;
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
  40% { transform: rotate(45deg) translateY(-8px); }
  60% { transform: rotate(45deg) translateY(-4px); }
}

@media (max-width: 767px) {
  .hero__inner {
    flex-direction: column-reverse;
    text-align: center;
  }

  .hero__avatar {
    flex: 0 0 auto;
  }

  .hero__avatar img {
    width: 180px;
    height: 180px;
  }

  .hero__ctas {
    justify-content: center;
  }
}

/* ============================================
   About 
   ============================================ */

.about__bio  {
  max-width: 700px;
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  margin: 0px auto var(--space-lg) auto;
  line-height: 1.8;

}

.about__bio p {
  margin-bottom: var(--space-md);
}

.about__stats {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat__number {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-primary);
  display: block;
}

.stat__label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.about__interests {
  margin-bottom: var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

@media (max-width: 767px) {
  .about-skills__grid {
    grid-template-columns: 1fr;
  }

  .about__stats {
    justify-content: center;
  }
}

/* ============================================
   Skills
   ============================================ */
.skills__tabs {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.skills__tab {
  padding: 0.25rem 0.75rem;
  font-size: var(--fs-xs);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  font-family: inherit;
}

.skills__tab:hover,
.skills__tab.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--space-sm);
}

.skill-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-sm) var(--space-xs);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.skill-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow);
}

.skill-card__icon {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
  display: block;
}

.skill-card__name {
  font-size: var(--fs-xs);
  font-weight: 500;
}

/* ============================================
   Case Studies
   ============================================ */
.projects__filter-dropdown {
  display: none;
  margin-bottom: var(--space-lg);
}

.projects__filter-select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: var(--fs-sm);
  font-family: inherit;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius);
  cursor: pointer;
}

.projects__layout {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: var(--space-xl);
  align-items: start;
}

.projects__sidebar {
  position: sticky;
  top: calc(var(--nav-height, 60px) + var(--space-lg));
}

.projects__filters {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.projects__filter {
  padding: 0.4rem 0.8rem;
  font-size: var(--fs-xs);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  min-height: 36px;
  display: flex;
  align-items: center;
  font-family: inherit;
  width: 100%;
  text-align: left;
}

.projects__filter:hover,
.projects__filter.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.project-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--color-shadow);
}

.project-card__img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--color-bg-alt);
}

.project-card__body {
  padding: var(--space-lg);
}

.project-card__title {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.project-card__desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.project-card__techs {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.tech-tag {
  font-size: var(--fs-xs);
  padding: 0.15rem 0.5rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--tech-tag-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
}

.project-card__links {
  display: flex;
  gap: var(--space-md);
}

.project-card__link {
  font-size: var(--fs-sm);
  font-weight: 500;
}

@media (max-width: 767px) {
  .projects__filter-dropdown {
    display: block;
  }

  .projects__sidebar {
    display: none;
  }

  .projects__layout {
    grid-template-columns: 1fr;
  }

  .projects__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Timeline / Experience
   ============================================ */
.timeline {
  position: relative;
  padding: var(--space-xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
  transform: translateX(-50%);
}

.timeline__item {
  position: relative;
  width: 50%;
  padding: 0 var(--space-2xl) var(--space-2xl);
}

.timeline__item:nth-child(odd) {
  left: 0;
  padding-right: var(--space-2xl);
  text-align: right;
}

.timeline__item:nth-child(even) {
  left: 50%;
  padding-left: var(--space-2xl);
}

.timeline__dot {
  position: absolute;
  top: 0;
  width: 14px;
  height: 14px;
  background: var(--color-primary);
  border: 2px solid var(--color-bg);
  border-radius: 50%;
  z-index: 1;
}

.timeline__item:nth-child(odd) .timeline__dot {
  right: -7px;
}

.timeline__item:nth-child(even) .timeline__dot {
  left: -7px;
}

.timeline__content {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-lg);
}

.timeline__company {
  font-size: var(--fs-sm);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.timeline__company a {
  color: inherit;
}

.timeline__title {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.timeline__date {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.timeline__desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.timeline__techs {
  padding-top: 10px;
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.timeline__item:nth-child(odd) .timeline__techs {
  justify-content: flex-end;
}

.media-list {
  max-width: 700px;
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  margin: 0px auto var(--space-lg) auto;
  line-height: 1.8;
  a {
    font-weight: 600;
  }
}

@media (max-width: 767px) {
  .timeline::before {
    left: 20px;
  }

  .timeline__item,
  .timeline__item:nth-child(odd),
  .timeline__item:nth-child(even) {
    width: 100%;
    left: 0;
    padding-left: 50px;
    padding-right: 0;
    text-align: left;
  }

  .timeline__item:nth-child(odd) .timeline__dot,
  .timeline__item:nth-child(even) .timeline__dot {
    left: 13px;
    right: auto;
  }

  .timeline__item:nth-child(odd) .timeline__techs {
    justify-content: flex-start;
  }
}


/* ============================================
   Blog
   ============================================ */
.blog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.blog-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow);
}

.blog-card__img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--color-bg-alt);
}

.blog-card__body {
  padding: var(--space-lg);
}

.blog-card__meta {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  display: flex;
  gap: var(--space-md);
}

.blog-card__title {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.blog-card__title a {
  color: var(--color-text);
}

.blog-card__title a:hover {
  color: var(--color-primary);
}

.blog-card__excerpt {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.blog-card__tags {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.blog-card__read-more {
  font-size: var(--fs-sm);
  font-weight: 500;
}

@media (max-width: 767px) {
  .blog__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Carousel / Testimonials
   ============================================ */
.carousel {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  overflow: hidden;
}

.carousel__track {
  display: flex;
  transition: transform 0.4s ease;
}

.carousel__slide {
  min-width: 100%;
  padding: var(--space-xl);
}

.testimonial {
  text-align: center;
}

.testimonial__quote {
  font-size: var(--fs-md);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  position: relative;
}

.testimonial__quote::before {
  content: '\201C';
  font-size: 3rem;
  color: var(--color-primary);
  position: absolute;
  top: -1rem;
  left: -0.5rem;
  line-height: 1;
}

.testimonial__avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--space-sm);
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.testimonial__author {
  font-weight: 600;
  font-size: var(--fs-sm);
}

.testimonial__role {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  font-size: var(--fs-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.carousel__arrow:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.carousel__arrow--prev {
  left: 0;
}

.carousel__arrow--next {
  right: 0;
}

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: background var(--transition);
  padding: 0;
}

.carousel__dot.active {
  background: var(--color-primary);
}

/* ============================================
   Contact
   ============================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;

}

.contact__info-top {
  margin: 0 auto;
  gap: var(--space-2xl);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  img {
    max-height: 2rem;
    margin-left: 1rem;
  }
  div {
    display: flex;
    align-items: center;
  }
  h3 {
    margin-right: 1rem;
  }
}

.contact__info-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-top: 3rem;
  img {
    max-height: 2rem;
  }
  h4 {
    max-width: 200px;
  }
}

@media (max-width: 767px) {
  .contact__info-top {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .contact__info-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .contact__info-bottom h4 {
    max-width: none;
  }
}

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

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--fs-base);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition);
  min-height: 44px;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

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

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--color-error);
}

.form-group input.valid,
.form-group textarea.valid {
  border-color: var(--color-success);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  display: block;
  min-height: 1.2em;
}

.form-group--honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.contact__info {
  max-width: 70%;
  padding: 0 var(--space-xl);
  background: var(--color-card-bg);
  margin: 0px auto;
}

.contact__info-item {
  margin-bottom: var(--space-lg);
}

.contact__info-item:last-child {
  margin-bottom: 0;
}

.contact__info-item h3 {
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.contact__info-item p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.contact__copy {
  min-height: 28px !important;
}

.contact__socials {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.contact__socials a {
  font-size: var(--fs-sm);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  transition: all var(--transition);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.contact__socials a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

@media (max-width: 767px) {
  .contact__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Resume
   ============================================ */
.resume__content {
  text-align: center;
}

.resume__preview {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.resume__preview iframe {
  width: 100%;
  height: 600px;
  border: none;
}

.resume__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.resume__updated {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* ============================================
   Footer
   ============================================ */
.contact-prompt {
  text-transform: uppercase;
  font-family: var(--font-golos);
  font-size: var(--fs-lg);
  font-weight: 600;
}

.contact-info {
  p {
    font-size: var(--fs-lg);
  }

}
.footer {
  background: var(--color-footer);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
  position: relative;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: var(--space-lg);
  font-weight: 600;
  img {
    max-height: 1.4rem;
    width: auto;
  }
}

.footer__copyright {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.footer__socials {
  display: flex;
  gap: var(--space-md);
}

.footer__socials a {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  transition: color var(--transition);
}

.footer__socials a:hover {
  color: var(--color-primary);
}

.footer__nav ul {
  display: flex;
  gap: var(--space-lg);
  text-decoration: underline;
}

.footer__nav a {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

.footer__nav a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer__credit {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

@media (max-width: 767px) {
  .footer__top {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   Back to Top
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: var(--fs-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), background-color var(--transition);
  z-index: 90;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--color-primary-hover);
}

/* ============================================
   Toast
   ============================================ */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 3000;
  max-width: 90%;
  text-align: center;
}

.toast[hidden] {
  display: block;
  pointer-events: none;
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.toast--success {
  background: var(--color-success);
  color: #fff;
}

.toast--error {
  background: var(--color-error);
  color: #fff;
}

/* ============================================
   Page transition
   ============================================ */
.page-loading {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.page-loaded {
  opacity: 1;
}

/* ============================================
   Utility - empty / loading states
   ============================================ */
.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

/* ============================================
   Case Study Detail
   ============================================ */

.project-detail__back {
  display: inline-block;
  margin-bottom: var(--space-lg);
  font-size: var(--fs-sm);
}

.project-detail__title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--space-xl);
}

.project-detail__carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  margin-bottom: var(--space-xl);
}

.project-detail__carousel-track {
  display: flex;
  transition: transform 0.4s ease;
}

.project-detail__carousel-track img {
  min-width: 100%;
  height: 400px;
  object-fit: cover;
}

.project-detail__body > div {
  margin-bottom: var(--space-xl);
}

.project-detail__body > div:last-child {
  margin-bottom: 0;
}

.project-detail__body h3 {
  font-size: var(--fs-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.project-detail__body p,
.project-detail__body li {
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.project-detail__body ul {
  list-style: disc;
  padding-left: var(--space-lg);
}

.project-detail__body ul li {
  margin-bottom: var(--space-xs);
}

.project-detail__content h1,
.project-detail__content h3 {
  font-family: var(--font-golos);

  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.project-detail__content h1 { font-size: var(--fs-xl); }
.project-detail__content h2 { 
  font-size: var(--fs-xl);
  color: var(--color-primary);
  text-transform: uppercase;
  font-family: var(--font-golos);
}
.project-detail__content h3 { font-size: var(--fs-md); }

.project-detail__content p,
.project-detail__content li {
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.project-detail__content p {
  margin-bottom: var(--space-md);
}

.project-detail__content ul {
  list-style: disc;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.project-detail__content ul li {
  margin-bottom: var(--space-xs);
}

.project-detail__content blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-md);
  margin: var(--space-md) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.project-detail__content pre {
  background: var(--color-bg-alt, #f1f5f9);
  padding: var(--space-md);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: var(--space-md);
}

.project-detail__content code {
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.9em;
}

.project-detail__content img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: var(--space-md) 0;
}

.project-detail__content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.project-detail__techs .tech-tag {
  display: inline-block;
  margin: 0 var(--space-xs) var(--space-xs) 0;
}

.project-detail__links {
  display: flex;
  gap: var(--space-md);
}

@media (max-width: 767px) {
  .project-detail__carousel-track img {
    height: 250px;
  }
}

/* ============================================
   Blog Post Detail
   ============================================ */
.post-detail__back {
  display: inline-block;
  margin-bottom: var(--space-lg);
  font-size: var(--fs-sm);
}

.post-detail__title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.post-detail__meta {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.post-detail__tags {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.post-detail__featured-image {
  margin-bottom: var(--space-xl);
}

.post-detail__featured-image img {
  width: 100%;
  border-radius: var(--radius);
}

.post-detail__body {
  font-size: var(--fs-base);
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
}

.post-detail__body h1,
.post-detail__body h2,
.post-detail__body h3,
.post-detail__body h4 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.post-detail__body h2 { font-size: var(--fs-xl); }
.post-detail__body h3 { font-size: var(--fs-lg); }
.post-detail__body h4 { font-size: var(--fs-md); }

.post-detail__body p {
  margin-bottom: var(--space-md);
}

.post-detail__body pre {
  background: var(--color-code-bg);
  padding: var(--space-lg);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
}

.post-detail__body code {
  background: var(--color-code-bg);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.post-detail__body pre code {
  background: none;
  padding: 0;
}

.post-detail__body blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-lg);
  margin: var(--space-md) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.post-detail__body ul,
.post-detail__body ol {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-md);
}

.post-detail__body li {
  margin-bottom: var(--space-xs);
  list-style: inherit;
}

.post-detail__body ul { list-style: disc; }
.post-detail__body ol { list-style: decimal; }

.post-detail__body img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: var(--space-md) 0;
}

.post-detail__share {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
  font-size: var(--fs-sm);
}

.post-detail__share a {
  font-size: var(--fs-sm);
}

.post-detail__nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
}

.post-detail__nav a {
  font-size: var(--fs-sm);
}