/* =========================================
   PERLIT BLOCK - Main Stylesheet
   ========================================= */

:root {
  --color-primary: #c8472a;
  --color-primary-dark: #a83920;
  --color-primary-light: #f5e6e0;
  --color-dark: #1a1a1a;
  --color-text: #2d2d2d;
  --color-muted: #6b6b6b;
  --color-light: #f7f5f2;
  --color-white: #ffffff;
  --color-border: #e5e1dc;
  --color-accent: #2c3e50;

  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-ar: 'Noto Kufi Arabic', 'Inter', sans-serif;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --container: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ RESET ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}
body[dir="rtl"] { font-family: var(--font-ar); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, h5 { margin: 0 0 0.5em; line-height: 1.2; font-weight: 700; color: var(--color-dark); }
p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  font-family: inherit;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}
.btn--ghost:hover { background: var(--color-dark); color: var(--color-white); }
.btn--ghost-light {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn--ghost-light:hover { background: var(--color-white); color: var(--color-dark); }
.btn--full { width: 100%; }

/* ============ TOPBAR ============ */
.topbar {
  background: var(--color-dark);
  color: var(--color-white);
  font-size: 13px;
  padding: 8px 0;
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.topbar__contact {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.topbar__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.85);
}
.topbar__link:hover { color: var(--color-white); }

/* Language Switcher */
.topbar__lang { position: relative; }
.lang-switch {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--color-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  transition: var(--transition);
}
.lang-switch:hover { background: rgba(255,255,255,0.1); }
.lang-switch__flag { font-size: 16px; }
.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  min-width: 170px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 1000;
  overflow: hidden;
}
body[dir="rtl"] .lang-menu { right: auto; left: 0; }
.lang-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-menu button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 10px 14px;
  cursor: pointer;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: inherit;
  font-size: 14px;
}
body[dir="rtl"] .lang-menu button { text-align: right; }
.lang-menu button:hover { background: var(--color-light); }

/* ============ HEADER ============ */
.header {
  background: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--color-dark);
}
.logo__img { height: 56px; width: auto; object-fit: contain; }
.logo__text { color: var(--color-dark); }
.logo__text span { color: var(--color-primary); }
.logo--light .logo__text { color: var(--color-white); }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav__list {
  display: flex;
  gap: 30px;
}
.nav__list a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 15px;
  position: relative;
  padding: 4px 0;
}
.nav__list a:hover { color: var(--color-primary); }
.nav__list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}
.nav__list a:hover::after { width: 100%; }
.nav__close { display: none; }
.nav__toggle {
  display: none;
  background: transparent;
  border: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav__toggle span {
  width: 26px;
  height: 2px;
  background: var(--color-dark);
  transition: var(--transition);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a1a 0%, #2c3e50 100%);
  color: var(--color-white);
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  z-index: 1;
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.6) 0%, rgba(200,71,42,0.3) 100%);
}
.hero__inner {
  position: relative;
  z-index: 2;
  padding: 80px 20px;
}
.hero__content { max-width: 720px; }
.hero__tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.hero__title {
  font-size: clamp(2rem, 5vw, 3.6rem);
  color: var(--color-white);
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -1px;
}
.hero__desc {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: rgba(255,255,255,0.9);
  margin-bottom: 36px;
  max-width: 620px;
}
.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}
.hero__actions .btn--ghost {
  color: var(--color-white);
  border-color: var(--color-white);
}
.hero__actions .btn--ghost:hover {
  background: var(--color-white);
  color: var(--color-dark);
}
.hero__stats {
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
}
.stat strong {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 4px;
}
.stat span {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.hero__scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.6);
  z-index: 3;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

/* ============ SECTIONS ============ */
.section { padding: 100px 0; }
.section--light { background: var(--color-light); }
.section--dark { background: var(--color-dark); color: var(--color-white); }
.section__head { margin-bottom: 60px; max-width: 700px; }
.section__head--center { text-align: center; margin: 0 auto 60px; }
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.eyebrow--light { color: var(--color-primary); }
.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.5px;
}
.section--dark .section__title { color: var(--color-white); }
.section__subtitle {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-top: 16px;
}

/* ============ ABOUT ============ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about__text p {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
}
.check-list {
  margin-top: 28px;
}
.check-list li {
  padding: 10px 0 10px 32px;
  position: relative;
  color: var(--color-text);
  font-weight: 500;
}
body[dir="rtl"] .check-list li { padding: 10px 32px 10px 0; }
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
body[dir="rtl"] .check-list li::before { left: auto; right: 0; }
.about__image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e5e1dc, #c8472a22);
}
.about__image img { width: 100%; height: 100%; object-fit: cover; }
.about__placeholder-text {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 500;
}
.about__image--placeholder .about__placeholder-text { display: flex; }
.about__image--slideshow { background: #111; padding: 0; }

/* ============ SLIDESHOW ============ */
.slideshow { position: relative; width: 100%; height: 100%; overflow: hidden; border-radius: var(--radius-lg); }
.slideshow__track { width: 100%; height: 100%; }
.slideshow__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.6s ease; }
.slideshow__slide.active { opacity: 1; position: relative; }
.slideshow__slide img { width: 100%; height: 100%; object-fit: contain; background: #f7f5f2; display: block; }
.slideshow__btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.45); color: #fff; border: none; cursor: pointer;
  width: 40px; height: 40px; border-radius: 50%; font-size: 24px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s; z-index: 2;
}
.slideshow__btn:hover { background: rgba(0,0,0,0.7); }
.slideshow__btn--prev { left: 12px; }
.slideshow__btn--next { right: 12px; }
.slideshow__dots { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); display: flex; gap: 6px; z-index: 2; }
.slideshow__dot {
  width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.5);
  border: none; cursor: pointer; padding: 0; transition: background 0.2s;
}
.slideshow__dot.active { background: #fff; }

/* ============ PRODUCTS ============ */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}
.product-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}
.product-card__image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #f5e6e0, #fff);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card__placeholder {
  font-size: 60px;
  opacity: 0.4;
  display: none;
}
.product-card__image--placeholder .product-card__placeholder { display: block; }
.product-card__body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.product-card__title { font-size: 1.2rem; margin-bottom: 10px; }
.product-card__desc { color: var(--color-muted); font-size: 0.95rem; margin-bottom: 16px; }
.product-card__specs {
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
  margin-top: auto;
}
.product-card__specs li {
  font-size: 13px;
  color: var(--color-muted);
  padding: 4px 0;
}
.product-card__specs li span {
  font-weight: 600;
  color: var(--color-dark);
}
.products__cta {
  text-align: center;
  margin-top: 60px;
  padding: 40px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.products__cta p {
  font-size: 1.1rem;
  color: var(--color-muted);
  margin-bottom: 20px;
}

/* ============ BELGELER ============ */
.belgeler-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}
.belge-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.belge-card__header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  transition: background var(--transition);
}
.belge-card__header:hover { background: var(--color-light); }
.belge-card__icon { color: var(--color-primary); flex-shrink: 0; }
.belge-card__title { flex: 1; }
.belge-card__arrow { color: var(--color-muted); transition: transform var(--transition); }
.belge-card__header[aria-expanded="true"] .belge-card__arrow { transform: rotate(180deg); }
.belge-card__body {
  display: none;
  border-top: 1px solid var(--color-border);
}
.belge-card__body.open { display: block; }
.belge-card__download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 12px 16px;
  padding: 8px 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}
.belge-card__download:hover { opacity: 0.85; }
.belge-card__iframe {
  width: 100%;
  height: 700px;
  border: none;
  display: block;
}
@media (max-width: 768px) {
  .belge-card__iframe { display: none; }
}
.belgeler-empty {
  text-align: center;
  color: var(--color-muted);
  padding: 40px;
}

/* ============ CONTACT ============ */
.contact {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 50px;
}
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.contact__item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.contact__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact__item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--color-dark);
}
.contact__item p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}
.contact__item a:hover { color: var(--color-primary); }

.contact__form {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.contact__form h3 {
  margin-bottom: 24px;
  font-size: 1.4rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-white);
  transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(200,71,42,0.1);
}
.form-group textarea { resize: vertical; }
.form__success {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  background: #e6f4ea;
  color: #1e7e34;
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.form__success.show { display: block; }

/* ============ FOOTER ============ */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding-top: 60px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer__col h5 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.footer__col p { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.footer__col ul li { margin-bottom: 10px; }
.footer__col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.7); }
.footer__col ul li a:hover { color: var(--color-primary); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ============ WHATSAPP FLOAT ============ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37,211,102,0.4);
  z-index: 999;
  transition: var(--transition);
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(37,211,102,0.5);
}
body[dir="rtl"] .whatsapp-float { right: auto; left: 24px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 968px) {
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .contact { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .topbar__contact { gap: 14px; font-size: 12px; }
  .topbar__link span { display: none; }
  .topbar__link span:first-of-type { display: inline; }

  .nav__toggle { display: flex; }
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 70px 30px 30px;
    gap: 0;
    box-shadow: var(--shadow-lg);
    transition: right 0.3s;
    z-index: 1000;
  }
  body[dir="rtl"] .nav { right: auto; left: -100%; transition: left 0.3s; }
  .nav.open { right: 0; }
  body[dir="rtl"] .nav.open { right: auto; left: 0; }
  .nav__list { flex-direction: column; gap: 0; width: 100%; }
  .nav__list li { width: 100%; border-bottom: 1px solid var(--color-border); }
  .nav__list a { display: block; padding: 16px 0; }
  .nav__cta { margin-top: 20px; width: 100%; }
  .nav__close {
    display: block;
    position: absolute;
    top: 16px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 32px;
    color: var(--color-dark);
    cursor: pointer;
    line-height: 1;
  }
  body[dir="rtl"] .nav__close { right: auto; left: 20px; }

  .form-row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 30px; }
  .hero__stats { gap: 28px; }
  .stat strong { font-size: 1.8rem; }
  .brochure { flex-direction: column; text-align: center; }
  .brochure__icon { margin: 0 auto; }
}

@media (max-width: 480px) {
  .hero { min-height: 80vh; }
  .hero__inner { padding: 50px 20px; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .section__head { margin-bottom: 40px; }
  .contact__form { padding: 24px; }
}

/* ============ ANIMATIONS ============ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}