/* ===== Variables ===== */
:root {
  --dark-bg:    #1c1c1c;   /* logo charcoal — topbar / footer / gallery */
  --dark-blue:  #111111;   /* logo near-black — project section */
  --section-alt-bg: #f3f4f6;
  --header-bg:  #232830;   /* distinct from the logo's near-black backdrop so it doesn't blend into the menu bar */
  --orange:     #cc2e10;   /* logo red-orange — primary accent */
  --green:      #4dbf14;   /* logo vivid green — secondary accent */
  --white:      #ffffff;
  --text:       #2c2c2c;
  --text-light: #6c6c6c;
  --border:     #e2e2e2;
  --card-bg:    #f5f7fa;
  --font:       'Vazirmatn', 'Segoe UI', Tahoma, sans-serif;
  --max-w:      1200px;
  --h-header:   80px;
  --h-topbar:   42px;
  --ease:       0.3s ease;
  --shadow:     0 4px 24px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 36px rgba(0,0,0,.16);
  --radius:     8px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: #fff;
  line-height: 1.75;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; transition: color var(--ease); }
ul  { list-style: none; }
button { font-family: var(--font); }

/* ===== Container ===== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: var(--radius);
  font-size: .93rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--ease);
  white-space: nowrap;
}
.btn--primary { background: var(--orange); color: var(--white); border-color: var(--orange); }
.btn--primary:hover { background: #a82008; border-color: #a82008; color: var(--white); }
.btn--outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,.65); }
.btn--outline:hover { background: rgba(255,255,255,.12); border-color: var(--white); color: var(--white); }
.btn--outline-dark { background: transparent; color: var(--dark-blue); border-color: var(--dark-blue); }
.btn--outline-dark:hover { background: var(--dark-blue); color: var(--white); }

/* ===== Top Bar ===== */
.topbar {
  background: var(--dark-bg);
  color: var(--white);
  height: var(--h-topbar);
  font-size: .78rem;
  font-weight: 400;
}
.topbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.topbar__list { display: flex; align-items: center; gap: 18px; }
.topbar__list li { display: flex; align-items: center; gap: 6px; }
.topbar__list svg { width: 13px; height: 13px; fill: var(--orange); flex-shrink: 0; }
.topbar__list a { color: rgba(255,255,255,.82); }
.topbar__list a:hover { color: var(--orange); }
.topbar__list span { color: rgba(255,255,255,.82); }
.topbar__center img { height: 26px; width: auto; }

.topbar__list--social { gap: 14px; }
.topbar__list--social li { gap: 0; }
.topbar__list--social a { display: flex; align-items: center; }
.topbar__list--social svg { width: 15px; height: 15px; fill: rgba(255,255,255,.82); transition: fill var(--ease), transform var(--ease); }
.topbar__list--social a:hover svg { fill: var(--orange); transform: translateY(-1px); }

/* ===== Header ===== */
.site-header {
  background: var(--card-bg);
  height: var(--h-header);
  position: sticky;
  top: 0;
  z-index: 200;
  transition: height var(--ease), background var(--ease), box-shadow var(--ease);
  box-shadow: 0 2px 20px rgba(0,0,0,.12);
}
.site-header.scrolled {
  height: 62px;
  background: rgba(245,247,250,.97);
  backdrop-filter: blur(10px);
}
.site-header .container {
  max-width: 100%;
  padding: 0 16px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header__logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.site-header__logo img,
.site-header__logo .custom-logo {
  height: 54px;
  width: auto;
  transition: height var(--ease);
}
.site-header.scrolled .site-header__logo img,
.site-header.scrolled .site-header__logo .custom-logo { height: 42px; }
.site-header__title {
  color: var(--orange);
  font-size: 1.25rem;
  font-weight: 800;
  white-space: nowrap;
  transition: color var(--ease);
}

/* Nav */
#site-header .site-header__nav {
  flex: 1;
  min-width: 0;
}
#site-header .nav-menu {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}
#site-header .nav-menu > li { flex-shrink: 0; }
#site-header .nav-menu li a {
  color: var(--text);
  font-size: .88rem;
  font-weight: 500;
  padding: 4px 3px;
  border-radius: 6px;
  transition: all var(--ease);
  white-space: nowrap;
  display: block;
}
#site-header .nav-menu li a:hover,
#site-header .nav-menu li.current-menu-item > a { color: var(--orange); background: rgba(204,46,16,.10); }

/* Dropdown arrow for parent items */
#site-header .nav-menu .menu-item-has-children > a::after {
  content: '▾';
  display: inline-block;
  margin-inline-start: 5px;
  font-size: .75em;
  opacity: .65;
  transition: transform var(--ease);
}
#site-header .nav-menu .menu-item-has-children:hover > a::after { transform: rotate(180deg); }

/* Sub-menu dropdown */
#site-header .nav-menu .menu-item-has-children { position: relative; }
#site-header .nav-menu .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  inset-inline-start: 0;
  min-width: 190px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  padding: 6px 0;
  z-index: 300;
  list-style: none;
  margin: 0;
}
#site-header .nav-menu .menu-item-has-children:hover > .sub-menu { display: block; }
#site-header .nav-menu .sub-menu li a {
  border-radius: 0;
  padding: 10px 18px;
  font-size: .85rem;
}
#site-header .nav-menu .sub-menu li a:hover { background: rgba(204,46,16,.12); padding-inline-start: 24px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--dark-blue);
  border-radius: 2px;
  transition: all var(--ease);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dark-blue);
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(17,17,17,.82) 0%, rgba(17,17,17,.45) 10%);
  z-index: 1;
}
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 40px 24px;
  max-width: 820px;
}
.hero__title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 22px;
  text-shadow: 0 2px 16px rgba(0,0,0,.6);
  animation: heroTitleIn .9s cubic-bezier(.22,1,.36,1) both;
}
@keyframes heroTitleIn {
  from { opacity: 0; transform: translateY(36px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero__subtitle {
  font-size: clamp(.9rem, 1.8vw, 1.1rem);
  font-weight: 400;
  line-height: 1.85;
  margin-bottom: 22px;
  opacity: .9;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  animation: heroTitleIn .9s cubic-bezier(.22,1,.36,1) .2s both;
}
.hero__buttons { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; animation: heroTitleIn .9s cubic-bezier(.22,1,.36,1) .4s both; }

/* Featured news cards inside hero */
.hero__news {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 0;
  margin-bottom: 24px;
  animation: heroTitleIn .9s cubic-bezier(.22,1,.36,1) .6s both;
}
.hero__news-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--white);
  text-decoration: none;
  text-align: start;
  transition: background .25s, border-color .25s, transform .25s;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero__news-card:hover { background: rgba(255,255,255,.14); border-color: var(--orange); transform: translateY(-2px); }
.hero__news-img {
  width: 68px; height: 68px;
  border-radius: 6px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}
.hero__news-body { flex: 1; min-width: 0; }
.hero__news-title {
  font-size: .84rem;
  font-weight: 600;
  line-height: 1.5;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--white);
  opacity: .55;
  animation: bounce 2.2s infinite;
  transition: opacity var(--ease);
  cursor: pointer;
}
.hero__scroll:hover { opacity: .9; }
.hero__scroll svg { width: 28px; height: 28px; fill: currentColor; }
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(9px); }
}

/* ===== Section base ===== */
.section {
  padding: 96px 0;
}
.section--50 {
  padding: 72px 0;
}
.section__more { text-align: center; margin-top: 44px; }

/* ===== Section header (sec-head) — shared by all sections ===== */
.sec-head {
  text-align: center;
  margin-bottom: 52px;
}
.sec-head::before {
  content: '';
  display: block;
  width: 40px;
  height: 4px;
  background: var(--orange);
  border-radius: 2px;
  margin: 0 auto 20px;
}
.sec-head__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--dark-blue);
  line-height: 1.2;
}
.sec-head--light .sec-head__title { color: var(--white); }

/* ===== Scroll-in animations ===== */
.sec-head,
.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .65s ease, transform .65s cubic-bezier(.22,1,.36,1);
}
.sec-head.in-view,
.stagger-item.in-view { opacity: 1; transform: none; }

/* ===== History ===== */
.history {
  background: #fafafa;
}
.history__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.history__text p { margin-bottom: 20px; line-height: 2; font-size: .96rem; color: var(--text); }
.history__compare { display: flex; align-items: center; }

/* ── Image Compare Widget ── */
.img-compare {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(0,0,0,.18);
  aspect-ratio: 4/3;
  cursor: ew-resize;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
  width: 100%;
}

/* After image (background layer) */
.img-compare__after {
  position: absolute;
  inset: 0;
}
.img-compare__after img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

/* Before image (clipped layer, starts at 50%) */
.img-compare__before {
  position: absolute;
  inset: 0;
  width: 50%;
  overflow: hidden;
}
.img-compare__before img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  /* keep the image full-size regardless of container clip */
  min-width: var(--compare-full-w, 100%);
  max-width: none;
}

/* Drag handle */
.img-compare__handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 2px;
  background: rgba(255,255,255,.9);
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.img-compare__handle::before,
.img-compare__handle::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: calc(50% - 26px);
  background: rgba(255,255,255,.9);
}
.img-compare__handle::before { top: 0; }
.img-compare__handle::after  { bottom: 0; }
.img-compare__btn {
  position: relative;
  z-index: 2;
  width: 46px; height: 46px;
  background: var(--white);
  border: none;
  border-radius: 50%;
  box-shadow: 0 2px 16px rgba(0,0,0,.25);
  display: flex; align-items: center; justify-content: center;
  cursor: ew-resize;
  color: var(--dark-blue);
  flex-shrink: 0;
  pointer-events: auto;
  transition: transform .2s ease, box-shadow .2s ease;
}
.img-compare__btn:hover { transform: scale(1.1); box-shadow: 0 4px 20px rgba(0,0,0,.3); }
.img-compare__btn svg { width: 18px; height: 18px; }

/* Labels */
.img-compare__label {
  position: absolute;
  bottom: 14px;
  font-size: .75rem;
  font-weight: 700;
  color: var(--white);
  background: rgba(17,17,17,.65);
  backdrop-filter: blur(4px);
  padding: 4px 12px;
  border-radius: 99px;
  pointer-events: none;
  border: 1px solid rgba(255,255,255,.15);
  letter-spacing: .02em;
}
.img-compare__label--before { left: 14px; }
.img-compare__label--after  { right: 14px; }

/* ===== Projects ===== */
.projects,
.certificates {
  background: var(--section-alt-bg);
}
/* Dark mode */
[data-theme="dark"] .projects,
[data-theme="dark"] .certificates {
  background: var(--dark-blue);
}

.projects__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.project-card {
  border-radius: var(--radius); overflow: hidden;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.project-card:hover { transform: translateY(-8px); box-shadow: 0 16px 48px rgba(0,0,0,.5); border-color: rgba(204,46,16,.4); }
.project-card a { display: block; }
.project-card__img { overflow: hidden; aspect-ratio: 16/9; }
.project-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.project-card:hover .project-card__img img { transform: scale(1.07); }
.project-card__body { padding: 15px 16px 18px; display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.project-card__body h4 { color: var(--white); font-size: .87rem; font-weight: 600; line-height: 1.55; flex: 1; }
.project-card__progress {
  flex-shrink: 0;
  font-size: .72rem;
  font-weight: 700;
  color: var(--orange);
  background: rgba(204,46,16,.12);
  border: 1px solid rgba(204,46,16,.3);
  border-radius: 99px;
  padding: 2px 9px;
  white-space: nowrap;
  margin-top: 1px;
}
.project-card__img-placeholder {
  width: 100%; aspect-ratio: 16/9;
  background: rgba(255,255,255,.07);
}

/* ===== News search ===== */
.news-search {
  max-width: 580px;
  margin: 0 auto 44px;
}
.news-search__wrap {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 99px;
  overflow: hidden;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.news-search__wrap:focus-within {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(204,46,16,.12);
}
.news-search__icon {
  width: 15px;
  height: 15px;
  fill: var(--text-light);
  flex-shrink: 0;
  margin-inline-start: 14px;
  pointer-events: none;
}
.news-search__input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  padding-block: 13px;
  padding-inline: 16px 0;
  font-family: var(--font);
  font-size: .92rem;
  color: var(--text);
}
.news-search__input::placeholder { color: var(--text-light); }
.news-search__clear {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-light);
  flex-shrink: 0;
  margin-inline-end: 8px;
  transition: background var(--ease), color var(--ease);
}
.news-search__clear svg { width: 10px; height: 10px; fill: currentColor; }
.news-search__clear:hover { background: var(--orange); color: #fff; }
.news-search__btn {
  flex-shrink: 0;
  background: var(--orange);
  color: #fff;
  border: none;
  padding: 0 22px;
  height: 100%;
  min-height: 48px;
  font-family: var(--font);
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--ease);
}
.news-search__btn:hover { background: #a82008; }
.news-search__hint {
  text-align: center;
  margin-top: 10px;
  font-size: .82rem;
  color: var(--text-light);
}
.news-search__hint strong { color: var(--orange); }

[data-theme="dark"] .news-search__wrap { background: #1e1e1e; border-color: rgba(255,255,255,.12); }
[data-theme="dark"] .news-search__input { color: rgba(255,255,255,.87); }
[data-theme="dark"] .news-search__clear { background: rgba(255,255,255,.12); color: rgba(255,255,255,.55); }

/* ===== News ===== */
.news {
  background: #f5f7fa;
}
.news__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform var(--ease), box-shadow var(--ease);
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card a { display: block; }
.news-card__img { overflow: hidden; aspect-ratio: 16/9; }
.news-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.news-card:hover .news-card__img img { transform: scale(1.06); }
.news-card__body { padding: 18px 20px 22px; }
.news-card__title {
  font-size: .88rem; font-weight: 700; color: var(--dark-blue);
  margin-bottom: 8px; line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card__date { font-size: .72rem; color: var(--orange); font-weight: 600; display: block; margin-bottom: 8px; }
.news-card__excerpt {
  font-size: .8rem; color: var(--text-light); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}

/* ===== Certificates ===== */

.certs__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cert-card {
  text-align: center; padding: 34px 22px;
  background: rgba(255,255,255,.05);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.09);
  transition: all var(--ease);
  position: relative; overflow: hidden;
}
.cert-card::before {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 4px; height: 0;
  background: var(--orange);
  transition: height .4s ease;
  border-radius: 0 var(--radius) 0 0;
}
.cert-card:hover::before { height: 100%; }
.cert-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: rgba(204,46,16,.4); }
.cert-card__img { display: flex; justify-content: center; margin-bottom: 18px; }
.cert-card__img img { height: 88px; width: auto; object-fit: contain; margin: 0 auto; }
.cert-card__title { font-size: .84rem; font-weight: 600; color: var(--white); line-height: 1.55; }
/* ===== Videos (Aparat) ===== */
.videos { background: var(--white); }
[data-theme="dark"] .videos { background: #181818; }

.videos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.video-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--ease), box-shadow var(--ease);
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.video-card__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
}
.video-card__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-card__title {
  padding: 14px 18px 18px;
  font-size: .88rem;
  font-weight: 700;
  color: var(--dark-blue);
  line-height: 1.55;
}
[data-theme="dark"] .video-card { background: #1e1e1e; box-shadow: 0 4px 24px rgba(0,0,0,.4); }
[data-theme="dark"] .video-card__title { color: rgba(255,255,255,.90); }

@media (max-width: 1024px) {
  .videos__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .videos__grid { grid-template-columns: 1fr; }
}
/* ===== Gallery Carousel ===== */
.gallery { background: var(--card-bg); }
.gallery__carousel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}
.gallery__viewport {
  flex: 1;
  overflow: hidden;
  padding: 28px 0;
}
.gallery__track {
  display: flex;
  gap: 16px;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.gallery__item {
  flex: 0 0 calc((100% - 5 * 16px) / 4);
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 8px 28px rgba(0,0,0,.55);
  position: relative;
  z-index: 1;
  transition: transform .35s ease, box-shadow .35s ease;
  cursor: pointer;
}
.gallery__item img { width: 100%; height: 100%; object-fit: cover; }
.gallery__item:nth-child(6n+1) { transform: rotate(-2.5deg); }
.gallery__item:nth-child(6n+2) { transform: rotate( 2deg);   }
.gallery__item:nth-child(6n+3) { transform: rotate(-1.5deg); }
.gallery__item:nth-child(6n+4) { transform: rotate( 3deg);   }
.gallery__item:nth-child(6n+5) { transform: rotate(-3deg);   }
.gallery__item:nth-child(6n+6) { transform: rotate( 1.5deg); }
.gallery__item:hover {
  transform: rotate(0deg) scale(1.08) !important;
  box-shadow: 0 18px 48px rgba(0,0,0,.7);
  z-index: 10;
}
/* Carousel buttons */
.gallery__btn {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(0,0,0,.05);
  border: 1px solid rgba(0,0,0,.12);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--ease), opacity var(--ease);
}
.gallery__btn:hover:not(:disabled) { background: var(--orange); border-color: var(--orange); color: var(--white); }
.gallery__btn:disabled { opacity: .25; cursor: default; }
.gallery__btn svg { width: 14px; height: 14px; fill: currentColor; }

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 28px; left: 28px;
  width: 44px; height: 44px;
  background: var(--orange);
  color: var(--white);
  border: none; border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
  transition: all var(--ease);
  opacity: 0; visibility: hidden;
  z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: #a82008; transform: translateY(-3px); }
.back-to-top svg { width: 17px; height: 17px; fill: currentColor; }

/* ===== No content ===== */
.no-content { text-align: center; color: var(--text-light); font-size: .93rem; padding: 40px 0; grid-column: 1/-1; }

/* ===== Footer ===== */
.site-footer { background: var(--dark-bg); color: rgba(255,255,255,.72); padding: 64px 0 0; }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 44px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.1); }
.site-footer__brand img { height: 68px; width: auto; margin-bottom: 18px; }
.site-footer__name { color: var(--white); font-weight: 600; font-size: .95rem; margin-bottom: 6px; }
.site-footer__brand p { font-size: .83rem; line-height: 1.85; }
.site-footer__contact h4,
.site-footer__links h4 { color: var(--white); font-size: .97rem; font-weight: 700; margin-bottom: 18px; }
.site-footer__contact p { font-size: .83rem; margin-bottom: 9px; }
.footer-menu li { margin-bottom: 9px; }
.footer-menu li a { font-size: .83rem; color: rgba(255,255,255,.65); }
.footer-menu li a:hover { color: var(--orange); }
.site-footer__bottom { padding: 20px 0; text-align: center; font-size: .78rem; color: rgba(255,255,255,.45); }

/* ===== Single Project ===== */

/* Hero banner */
.project-hero {
  position: relative;
  min-height: 55vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--dark-blue);
}
.project-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.04);
  transition: transform 6s ease;
  filter: brightness(.75);
}
.project-hero:hover .project-hero__bg { transform: scale(1); }
.project-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(17,17,17,.92) 0%,
    rgba(17,17,17,.55) 50%,
    rgba(17,17,17,.2) 100%
  );
}
.project-hero__inner {
  position: relative;
  z-index: 2;
  padding-bottom: 52px;
  padding-top: 36px;
}
.project-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  color: rgba(255,255,255,.65);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.project-hero__breadcrumb a { color: rgba(255,255,255,.75); }
.project-hero__breadcrumb a:hover { color: var(--orange); }
.project-hero__breadcrumb svg { width: 8px; height: 8px; fill: rgba(255,255,255,.4); flex-shrink: 0; transform: rotate(180deg); }
[dir="ltr"] .project-hero__breadcrumb svg { transform: rotate(0deg); }
.project-hero__breadcrumb span { color: var(--white); }
.project-hero__title {
  font-size: clamp(1.5rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.4;
  max-width: 820px;
  text-shadow: 0 2px 14px rgba(0,0,0,.5);
}

/* Body layout */
.project-body { padding: 64px 0 80px; background: #f7f8fb; }
.project-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 48px;
}

/* Info card */
.project-info {
  background: var(--white);
  border-radius: 12px;
  padding: 36px 32px;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--orange);
}
.project-info__heading {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--dark-blue);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.project-info__list { display: flex; flex-direction: column; gap: 0; }
.project-info__row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
}
.project-info__row:last-child { border-bottom: none; }
.project-info__row dt {
  font-size: .8rem;
  font-weight: 700;
  color: var(--text-light);
  min-width: 110px;
  flex-shrink: 0;
}
.project-info__row dd {
  font-size: .9rem;
  font-weight: 500;
  color: var(--dark-blue);
  line-height: 1.55;
}

/* Progress bar */
.project-progress {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.project-progress__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.project-progress__label { font-size: .82rem; font-weight: 700; color: var(--text-light); }
.project-progress__value { font-size: 1.05rem; font-weight: 800; color: var(--orange); }
.project-progress__track {
  background: #ebebeb;
  border-radius: 99px;
  height: 10px;
  overflow: hidden;
}
.project-progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--orange), #e85520);
  border-radius: 99px;
  transition: width 1.4s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.project-progress__bar::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0; right: 0;
  width: 24px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35));
  border-radius: 99px;
}

/* Images column */
.project-images { display: flex; flex-direction: column; gap: 18px; }
.project-images__item {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--ease), transform var(--ease);
}
.project-images__item:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.project-images__item img { width: 100%; height: auto; display: block; }
.project-images__item--main img { aspect-ratio: 16/9; object-fit: cover; }
.project-images__item--second img { aspect-ratio: 16/9; object-fit: cover; }

/* Description */
.project-description {
  background: var(--white);
  border-radius: 12px;
  padding: 36px 32px;
  box-shadow: var(--shadow);
  margin-bottom: 36px;
  line-height: 2;
  font-size: .96rem;
  color: var(--text);
}
.project-description p { margin-bottom: 16px; }
.project-description p:last-child { margin-bottom: 0; }

/* Back button */
.project-back { margin-top: 8px; }

/* Responsive */
@media (max-width: 860px) {
  .project-layout { grid-template-columns: 1fr; }
  .project-hero { min-height: 45vh; }
  .project-info { padding: 26px 22px; }
}

/* ===== Page templates ===== */
.page-header {
  background: var(--dark-blue);
  padding: 60px 0 50px;
  color: var(--white);
  text-align: center;
}
.page-header h1 { font-size: clamp(1.4rem, 3vw, 2.1rem); font-weight: 700; }
.page-header__meta { display: block; margin-top: 10px; font-size: .82rem; opacity: .7; }
.page-wrap { padding: 60px 0; }
.post-content { max-width: 820px; margin: 0 auto; }
.post-content p { margin-bottom: 20px; line-height: 1.95; }
.post-content h2, .post-content h3 { margin: 30px 0 14px; font-weight: 700; color: var(--dark-blue); }
.post-content img { border-radius: var(--radius); margin: 18px 0; max-width: 100% !important; height: auto !important; }

/* ── Migrated content (old CMS) normalization ── */
.post-content * { font-family: var(--font) !important; box-sizing: border-box !important; }
.post-content div,
.post-content span,
.post-content td,
.post-content th { background-color: transparent !important; }
/* Bootstrap grid stubs — prevent layout breakage without Bootstrap loaded */
.post-content .row { display: block !important; margin: 0 !important; }
.post-content [class*="col-"] { float: none !important; width: 100% !important; padding: 0 !important; }
/* Old CMS source/attribution blocks */
.post-content .shownews5sourceheader { margin-top: 24px; padding-top: 14px; border-top: 1px solid rgba(128,128,128,.25); font-size: .85rem; opacity: .65; }
.post-thumbnail { border-radius: var(--radius); overflow: hidden; margin-bottom: 32px; }
.post-thumbnail img { width: 100%; height: auto; }
.post-nav { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--border); }

/* ===== Single post: two-column layout with related-posts sidebar ===== */
.post-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}
.post-layout .post-content { max-width: none; margin: 0; }

.post-sidebar {
  background: var(--white);
  border-radius: 12px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--orange);
  position: sticky;
  top: calc(var(--h-header) + var(--h-topbar) + 20px);
}
.post-sidebar__heading {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 20px;
}
.related-post-list { display: flex; flex-direction: column; gap: 16px; }
.related-post {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  transition: opacity var(--ease);
}
.related-post:hover { opacity: .82; }
.related-post__img {
  width: 72px; height: 72px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--card-bg);
}
.related-post__img img { width: 100%; height: 100%; object-fit: cover; }
.related-post__body { min-width: 0; }
.related-post__title {
  font-size: .86rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-post:hover .related-post__title { color: var(--orange); }
.related-post__date { font-size: .72rem; color: var(--text-light); }

@media (max-width: 900px) {
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; }
}

/* ===== Page header extensions ===== */
.page-header__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .78rem;
  color: rgba(255,255,255,.55);
  margin-bottom: 14px;
}
.page-header__breadcrumb a { color: rgba(255,255,255,.75); }
.page-header__breadcrumb a:hover { color: var(--orange); }
.page-header__desc { margin-top: 10px; font-size: .9rem; opacity: .75; font-weight: 400; }
.page-header__desc strong { color: var(--orange); font-style: normal; }

/* ===== News archive page ===== */
.news-page { padding: 52px 0 80px; background: var(--card-bg); }

/* ===== Filter bar ===== */
.filter-bar {
  background: var(--white);
  border-radius: 12px;
  padding: 22px 24px;
  box-shadow: var(--shadow);
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.filter-bar__cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 99px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-light);
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  transition: all var(--ease);
  white-space: nowrap;
}
.filter-pill:hover { color: var(--orange); border-color: rgba(204,46,16,.45); background: rgba(204,46,16,.05); }
.filter-pill--active { background: var(--orange); color: #fff; border-color: var(--orange); }
.filter-pill--active:hover { background: #a82008; border-color: #a82008; color: #fff; }
.filter-pill__count {
  font-size: .68rem;
  font-weight: 700;
  background: rgba(0,0,0,.12);
  border-radius: 99px;
  padding: 1px 6px;
}
.filter-pill--active .filter-pill__count { background: rgba(255,255,255,.3); }

.filter-bar__form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  font-family: var(--font);
  font-size: .84rem;
  color: var(--text);
  background: var(--card-bg);
  cursor: pointer;
  outline: none;
  transition: border-color var(--ease);
  min-width: 138px;
}
.filter-select:focus { border-color: var(--orange); }

.filter-search {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  flex: 1;
  min-width: 200px;
  transition: border-color var(--ease);
  background: var(--card-bg);
}
.filter-search:focus-within { border-color: var(--orange); }
.filter-search input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  padding: 9px 12px;
  font-family: var(--font);
  font-size: .84rem;
  color: var(--text);
  background: transparent;
}
.filter-search input::placeholder { color: var(--text-light); }
.filter-search button {
  background: var(--orange);
  border: none;
  color: #fff;
  padding: 0 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: background var(--ease);
}
.filter-search button:hover { background: #a82008; }
.filter-search button svg { width: 14px; height: 14px; fill: #fff; }

.filter-clear-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-light);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  background: var(--card-bg);
  transition: all var(--ease);
  white-space: nowrap;
}
.filter-clear-btn svg { width: 10px; height: 10px; fill: currentColor; }
.filter-clear-btn:hover { color: var(--orange); border-color: rgba(204,46,16,.45); }

/* Filter summary */
.filter-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  font-size: .84rem;
}
.filter-summary__count { color: var(--text-light); font-weight: 600; }
.filter-summary__clear { color: var(--orange); font-weight: 600; font-size: .8rem; }
.filter-summary__clear:hover { color: #a82008; }

/* Category badge on news card */
.news-card__cat {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  color: var(--orange);
  background: rgba(204,46,16,.08);
  border: 1px solid rgba(204,46,16,.22);
  border-radius: 99px;
  padding: 2px 10px;
  margin-bottom: 8px;
}

/* Post-type badge on search results */
.result-type-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  color: var(--text-light);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 2px 10px;
  margin-bottom: 8px;
}

/* News card empty image placeholder */
.news-card__img--empty {
  aspect-ratio: 16/9;
  background: var(--card-bg);
}

/* ===== Pagination ===== */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 52px; flex-wrap: wrap; }
.pagination .page-numbers,
.pagination span > .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  border-radius: var(--radius);
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  background: var(--white);
  border: 1.5px solid var(--border);
  transition: all var(--ease);
}
.pagination .page-numbers:hover { color: var(--orange); border-color: rgba(204,46,16,.45); }
.pagination .page-numbers.current { background: var(--orange); color: #fff; border-color: var(--orange); }
.pagination .page-numbers.dots { border: none; background: none; color: var(--text-light); }
/* the_posts_pagination wrapper */
.navigation.pagination { display: block; }
.navigation.pagination .nav-links { display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }

/* ===== No results (search page) ===== */
.no-results {
  text-align: center;
  padding: 80px 20px;
}
.no-results svg { width: 56px; height: 56px; fill: var(--border); margin: 0 auto 22px; display: block; }
.no-results h3 { font-size: 1.3rem; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.no-results p { color: var(--text-light); margin-bottom: 28px; }

/* Search form wider variant (search results page) */
.news-search--page { max-width: 700px; margin-bottom: 48px; }

/* ===== Dark mode — new elements ===== */
[data-theme="dark"] .news-page        { background: #111111; }
[data-theme="dark"] .filter-bar       { background: #1e1e1e; }
[data-theme="dark"] .filter-bar__cats { border-color: rgba(255,255,255,.08); }
[data-theme="dark"] .filter-pill      { background: #2a2a2a; border-color: rgba(255,255,255,.1); color: rgba(255,255,255,.60); }
[data-theme="dark"] .filter-select    { background: #2a2a2a; border-color: rgba(255,255,255,.12); color: rgba(255,255,255,.82); }
[data-theme="dark"] .filter-search    { background: #2a2a2a; border-color: rgba(255,255,255,.12); }
[data-theme="dark"] .filter-search input { color: rgba(255,255,255,.82); }
[data-theme="dark"] .filter-clear-btn { background: #2a2a2a; border-color: rgba(255,255,255,.12); color: rgba(255,255,255,.55); }
[data-theme="dark"] .pagination .page-numbers { background: #1e1e1e; border-color: rgba(255,255,255,.12); color: rgba(255,255,255,.75); }
[data-theme="dark"] .news-card__img--empty { background: #2a2a2a; }
[data-theme="dark"] .result-type-badge { background: #2a2a2a; border-color: rgba(255,255,255,.1); color: rgba(255,255,255,.50); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .projects__grid { grid-template-columns: repeat(2, 1fr); }
  .news__grid      { grid-template-columns: repeat(2, 1fr); }
  .gallery__item { flex: 0 0 calc((100% - 2 * 16px) / 3); min-width: 0; }
  .history__grid   { grid-template-columns: 1fr; gap: 36px; }
  .section { padding: 80px 0; }
  .section--50 { padding: 60px 0; }
}

@media (max-width: 768px) {
  :root { --h-topbar: auto; --h-header: 64px; }

  .site-header__title { display: none; }

  .topbar { height: auto; padding: 8px 0; }
  .topbar .container { flex-wrap: wrap; gap: 8px; justify-content: center; }
  .topbar__list { gap: 12px; }

  /* Mobile nav */
  .site-header__nav {
    display: none;
    position: absolute;
    top: 100%; right: 0; left: 0;
    background: var(--card-bg);
    padding: 14px 12px;
    box-shadow: 0 10px 28px rgba(0,0,0,.15);
    justify-content: flex-start;
  }
  .site-header__nav.open { display: block; }
  .site-header .container { position: relative; }
  #site-header .nav-menu { flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 2px; width: 100%; }
  #site-header .nav-menu li a { padding: 11px 16px; }
  #site-header .nav-menu .menu-item-has-children > a::after { float: left; margin-right: 0; margin-left: 5px; }
  #site-header .nav-menu .sub-menu {
    position: static;
    display: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: rgba(0,0,0,.035);
    padding: 0;
    margin: 2px 0;
  }
  #site-header .nav-menu .menu-item-has-children.open > .sub-menu { display: block; }
  #site-header .nav-menu .sub-menu li a { padding-right: 28px; font-size: .85rem; }
  .hamburger { display: flex; }

  /* Sections */
  .section { padding: 60px 0; }
  .section--50 { padding: 48px 0; }
  .projects__grid, .news__grid, .certs__grid { grid-template-columns: 1fr; }
  .gallery__item { flex: 0 0 calc((100% - 16px) / 2); min-width: 0; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 30px; }
  .hero__buttons { flex-direction: column; align-items: stretch; }
  .hero__news { grid-template-columns: 1fr; }
  .hero__news-img { width: 56px; height: 56px; }
  .btn { justify-content: center; }
  .sec-head { margin-bottom: 36px; }
  .sec-head::before { width: 32px; height: 3px; margin-bottom: 16px; }
  .filter-bar__form { flex-direction: column; align-items: stretch; }
  .filter-select { min-width: unset; width: 100%; }
  .filter-search { min-width: unset; }
  .news__grid { grid-template-columns: 1fr; }
}

/* ===== Section Nav (vertical left sidebar) ===== */
.sec-nav {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 190;
  display: flex;
  flex-direction: column;
}
.sec-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sec-nav__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(17,17,17,.65);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.70);
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
}
.sec-nav__item svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}
.sec-nav__item:hover {
  background: rgba(204,46,16,.85);
  border-color: transparent;
  color: #fff;
  transform: scale(1.12);
}
.sec-nav__item.active {
  background: var(--orange);
  border-color: transparent;
  color: #fff;
}

/* Tooltip */
.sec-nav__tip {
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--dark-blue);
  color: #fff;
  font-size: .74rem;
  font-weight: 600;
  white-space: nowrap;
  padding: 5px 11px;
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--ease), transform var(--ease);
  transform: translateY(-50%) translateX(-6px);
}
.sec-nav__tip::before {
  content: '';
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-right-color: var(--dark-blue);
}
.sec-nav__item:hover .sec-nav__tip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* Dark mode */
[data-theme="dark"] .sec-nav__item {
  background: rgba(30,34,48,.85);
  border-color: rgba(255,255,255,.12);
}

@media (max-width: 1024px) {
  .sec-nav { left: 10px; }
  .sec-nav__item { width: 36px; height: 42px; border-radius: 8px; }
}
@media (max-width: 768px) {
  .sec-nav { display: none; }
}

/* ===== Header Controls (dark toggle + lang switcher) ===== */
.header-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.hdr-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,.05);
  border: 1px solid rgba(0,0,0,.12);
  color: var(--text);
  border-radius: 20px;
  padding: 6px 12px;
  cursor: pointer;
  font-family: var(--font);
  font-size: .78rem;
  font-weight: 600;
  transition: background var(--ease), border-color var(--ease);
  white-space: nowrap;
}
.hdr-btn:hover {
  background: rgba(0,0,0,.09);
  border-color: rgba(0,0,0,.22);
}
.hdr-btn svg { width: 14px; height: 14px; fill: currentColor; flex-shrink: 0; }

/* Dark toggle icons */
.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Lang switcher */
.lang-switcher { position: relative; }
.lang-chevron { width: 9px !important; height: 9px !important; transition: transform var(--ease); opacity: .7; }
.lang-switcher.open .lang-chevron { transform: rotate(180deg); }
.lang-switcher__label { letter-spacing: .04em; }

.lang-switcher__menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 130px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 300;
  overflow: hidden;
  padding: 4px 0;
}
[data-theme="dark"] .lang-switcher__menu {
  background: #1e1e1e;
  border-color: rgba(255,255,255,.12);
}
.lang-switcher.open .lang-switcher__menu { display: block; }

.lang-option {
  display: block;
  padding: 9px 16px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--text);
  transition: background var(--ease), color var(--ease);
  cursor: pointer;
}
[data-theme="dark"] .lang-option { color: rgba(255,255,255,.82); }
.lang-option:hover { background: var(--card-bg); color: var(--orange); }
[data-theme="dark"] .lang-option:hover { background: rgba(255,255,255,.07); }
.lang-option.active { color: var(--orange); font-weight: 700; }

/* ===== Dark Mode ===== */
[data-theme="dark"] body {
  background: #111111;
  color: rgba(255,255,255,.87);
}
[data-theme="dark"] .history              { background: #181818; }
[data-theme="dark"] .history__text p      { color: rgba(255,255,255,.75); }
[data-theme="dark"] .news                 { background: #111111; }
[data-theme="dark"] .gallery              { background: #111111; }
[data-theme="dark"] .gallery__btn         { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.18); color: rgba(255,255,255,.88); }
[data-theme="dark"] .project-body         { background: #111111; }

[data-theme="dark"] .news-card            { background: #1e1e1e; box-shadow: 0 4px 24px rgba(0,0,0,.4); }
[data-theme="dark"] .news-card__title     { color: rgba(255,255,255,.90); }
[data-theme="dark"] .news-card__excerpt   { color: rgba(255,255,255,.55); }

[data-theme="dark"] .project-info         { background: #1e1e1e; }
[data-theme="dark"] .project-description  { background: #1e1e1e; color: rgba(255,255,255,.80); }
[data-theme="dark"] .project-info__heading { color: rgba(255,255,255,.93); border-color: rgba(255,255,255,.10); }
[data-theme="dark"] .project-info__row    { border-color: rgba(255,255,255,.07); }
[data-theme="dark"] .project-info__row dt { color: rgba(255,255,255,.50); }
[data-theme="dark"] .project-info__row dd { color: rgba(255,255,255,.87); }
[data-theme="dark"] .project-progress__track { background: rgba(255,255,255,.15); }

[data-theme="dark"] .sec-head__title      { color: rgba(255,255,255,.93); }
[data-theme="dark"] .sec-head--light .sec-head__title { color: var(--white); }

[data-theme="dark"] .btn--outline-dark    { color: rgba(255,255,255,.87); border-color: rgba(255,255,255,.35); }
[data-theme="dark"] .btn--outline-dark:hover { background: rgba(255,255,255,.12); }

[data-theme="dark"] .project-images__item { box-shadow: 0 4px 24px rgba(0,0,0,.5); }

[data-theme="dark"] .post-content h2,
[data-theme="dark"] .post-content h3 { color: rgba(255,255,255,.90); }
[data-theme="dark"] .page-wrap        { background: #111111; color: rgba(255,255,255,.80); }
[data-theme="dark"] .post-content div,
[data-theme="dark"] .post-content span,
[data-theme="dark"] .post-content td,
[data-theme="dark"] .post-content th  { background-color: transparent !important; }

[data-theme="dark"] .post-sidebar          { background: #1e1e1e; }
[data-theme="dark"] .post-sidebar__heading { color: rgba(255,255,255,.93); }
[data-theme="dark"] .related-post__title   { color: rgba(255,255,255,.87); }
[data-theme="dark"] .related-post__date    { color: rgba(255,255,255,.50); }

/* Header chrome: dark navbar (default above is the light-mode look) */
[data-theme="dark"] .site-header { background: var(--header-bg); box-shadow: 0 2px 20px rgba(0,0,0,.4); }
[data-theme="dark"] .site-header.scrolled { background: rgba(35,40,48,.97); }
[data-theme="dark"] #site-header .nav-menu li a { color: rgba(255,255,255,.85); }
[data-theme="dark"] #site-header .nav-menu .sub-menu { background: rgba(22,30,46,.98); border-color: rgba(255,255,255,.08); box-shadow: 0 10px 30px rgba(0,0,0,.5); }
[data-theme="dark"] .hamburger span { background: var(--white); }
[data-theme="dark"] .hdr-btn { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.14); color: rgba(255,255,255,.88); }
[data-theme="dark"] .hdr-btn:hover { background: rgba(255,255,255,.18); border-color: rgba(255,255,255,.28); }
@media (max-width: 768px) {
  [data-theme="dark"] .site-header__nav { background: rgba(17,17,17,.98); box-shadow: 0 10px 28px rgba(0,0,0,.4); }
  [data-theme="dark"] #site-header .nav-menu .sub-menu { background: rgba(255,255,255,.04); }
}

@media (max-width: 480px) {
  .topbar__center { display: none; }
  .topbar__list { gap: 10px; font-size: .72rem; }
  .gallery__item { flex: 0 0 calc((100% - 16px) / 2); min-width: 0; }
  .history__images { grid-template-columns: 1fr; }
  .lang-switcher__label { display: none; }
  .hdr-btn { padding: 6px 8px; }
}
/* Light mode */
.project-card,
.cert-card {
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.project-card__body h4,
.cert-card__title {
  color: var(--dark-blue);
}

/* Keep existing dark mode appearance */
[data-theme="dark"] .project-card,
[data-theme="dark"] .cert-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
}

[data-theme="dark"] .project-card__body h4,
[data-theme="dark"] .cert-card__title {
  color: var(--white);
}
.projects .sec-head__title,
.certificates .sec-head__title {
    color: var(--dark-blue);
}

/* Keep dark mode unchanged */
[data-theme="dark"] .projects,
[data-theme="dark"] .certificates {
    background: var(--dark-blue);
}

[data-theme="dark"] .projects .sec-head__title,
[data-theme="dark"] .certificates .sec-head__title {
    color: var(--white);
}