/*--------------------------------------------------------------
# Bader Roofing Systems - main.css
# Sıfırdan yazılmış, temiz ve organize CSS
--------------------------------------------------------------*/

/*--------------------------------------------------------------
# 1. FONT & RENK DEĞİŞKENLERİ
--------------------------------------------------------------*/
:root {
  --font-default: "Roboto", system-ui, -apple-system, sans-serif;
  --font-heading: "Raleway", sans-serif;
  --font-nav: "Poppins", sans-serif;

  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-heading: #003a36;
  --color-accent: #c60a32;
  --color-surface: #ffffff;
  --color-contrast: #ffffff;

  --nav-link: #000000;
  --nav-link-hover: #000000;
  --nav-mobile-bg: #c60a32;
  --nav-dropdown-bg: #c60a32;
  --nav-dropdown-text: #ffffff;
  --nav-dropdown-hover: #ffffff;

  --transition: 0.3s ease;
  --radius: 8px;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.13);

  scroll-behavior: smooth;
}

/*--------------------------------------------------------------
# 2. RESET & TEMEL STİLLER
--------------------------------------------------------------*/
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-default);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.3;
  margin-top: 0;
}

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

a:hover {
  color: color-mix(in srgb, var(--color-accent), transparent 25%);
}

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

ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

/*--------------------------------------------------------------
# 3. YARDIMCI SINIFLAR
--------------------------------------------------------------*/
.section {
  padding: 80px 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow: clip;
  scroll-margin-top: 82px;
}

.section-title {
  text-align: center;
  padding-bottom: 56px;
}

.section-title .label {
  display: inline-block;
  font-family: var(--font-default);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent), transparent 90%);
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 12px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-heading);
  margin: 0;
}

.section-title h2 span {
  color: var(--color-accent);
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  font-family: var(--font-nav);
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-contrast);
}

.btn-primary:hover {
  background-color: color-mix(in srgb, var(--color-accent), #000 12%);
  border-color: color-mix(in srgb, var(--color-accent), #000 12%);
  color: var(--color-contrast);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline:hover {
  background-color: var(--color-accent);
  color: var(--color-contrast);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/*--------------------------------------------------------------
# 4. PRELOADER
--------------------------------------------------------------*/
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: var(--color-bg);
  transition: opacity 0.5s ease;
}

#preloader::before {
  content: "";
  position: fixed;
  top: calc(50% - 28px);
  left: calc(50% - 28px);
  width: 56px;
  height: 56px;
  border: 5px solid color-mix(in srgb, var(--color-accent), transparent 80%);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/*--------------------------------------------------------------
# 5. SCROLL TOP BUTONU
--------------------------------------------------------------*/
.scroll-top {
  position: fixed;
  right: 20px;
  bottom: 90px;
  z-index: 9000;
  width: 42px;
  height: 42px;
  background-color: var(--color-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.scroll-top i {
  color: var(--color-contrast);
  font-size: 22px;
  line-height: 0;
}

.scroll-top:hover {
  background-color: color-mix(in srgb, var(--color-accent), #000 15%);
}

.scroll-top.active {
  opacity: 1;
  visibility: visible;
}

/*--------------------------------------------------------------
# 6. HEADER & NAV
--------------------------------------------------------------*/
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 997;
  padding: 14px 0;
  background-color: #ffffff;
  border-bottom: 3px solid #c60a32;
  transition: border-bottom 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
  background-color: #ffffff;
  border-bottom: 1px solid transparent;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.header .logo img {
  max-height: 58px;
  width: auto;
}

.header-btns {
  flex-shrink: 0;
}

.btn-getstarted {
  font-family: var(--font-nav);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 22px;
  border-radius: var(--radius);
  background-color: var(--color-accent);
  color: var(--color-contrast);
  transition: all var(--transition);
  border: 2px solid var(--color-accent);
  white-space: nowrap;
}

.btn-getstarted:hover {
  background-color: color-mix(in srgb, var(--color-accent), #000 12%);
  border-color: color-mix(in srgb, var(--color-accent), #000 12%);
  color: #fff;
}

.btn-bayi {
  font-family: var(--font-nav);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: var(--radius);
  background-color: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.35);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-bayi i {
  font-size: 15px;
  line-height: 0;
}

.btn-bayi:hover {
  background-color: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.7);
  color: #fff;
}

@media (max-width: 1200px) {
  .header-btns {
    order: 2;
    margin-right: 12px;
  }

  .btn-bayi span {
    display: none;
  }

  .btn-bayi {
    padding: 7px 10px;
  }

  .btn-getstarted {
    padding: 7px 16px;
  }
}

/* Desktop Nav */
@media (min-width: 1200px) {
  .navmenu ul {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .navmenu > ul > li {
    position: relative;
    padding: 14px 12px;
  }

  .navmenu a,
  .navmenu a:focus {
    font-family: var(--font-nav);
    font-size: 14px;
    font-weight: 500;
    color: var(--nav-link);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
    transition: color var(--transition);
    position: relative;
  }

  .navmenu a i {
    font-size: 11px;
    line-height: 0;
  }

  .navmenu > ul > li > a::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition);
  }

  .navmenu > ul > li > a:hover::after,
  .navmenu > ul > li > a.active::after {
    width: 100%;
  }

  .navmenu a:hover,
  .navmenu .active {
    color: var(--nav-link-hover);
  }

  .navmenu .dropdown ul {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 200px;
    background-color: var(--nav-dropdown-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 100;
  }

  .navmenu .dropdown:hover > ul {
    opacity: 1;
    visibility: visible;
    top: 100%;
  }

  .navmenu .dropdown ul a {
    font-size: 14px;
    color: var(--nav-dropdown-text);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }

  .navmenu .dropdown ul a:hover {
    color: var(--nav-dropdown-hover);
    background-color: color-mix(in srgb, var(--color-accent), transparent 94%);
  }

  .navmenu .dropdown ul a img {
    height: 14px;
    width: auto;
    object-fit: contain;
  }
}

/* Mobile Nav */
@media (max-width: 1199px) {
  .mobile-nav-toggle {
    font-size: 26px;
    color: var(--color-accent);
    cursor: pointer;
    line-height: 0;
    transition: color var(--transition);
  }

  .navmenu ul {
    display: none;
    position: fixed;
    inset: 60px 16px auto 16px;
    background-color: var(--nav-mobile-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 12px 0;
    z-index: 9998;
    overflow-y: auto;
    max-height: calc(100vh - 80px);
  }

  .navmenu a {
    font-family: var(--font-nav);
    font-size: 16px;
    font-weight: 500;
    color: #ffffff;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color var(--transition);
  }

  .navmenu a:hover,
  .navmenu .active {
    color: #ffffff;
    background-color: color-mix(in srgb, #fff, transparent 88%);
  }

  .navmenu a i {
    font-size: 12px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: color-mix(in srgb, #fff, transparent 80%);
    transition: all var(--transition);
  }

  .mobile-nav-active .mobile-nav-toggle {
    position: fixed;
    top: 18px;
    right: 18px;
    font-size: 28px;
    z-index: 9999;
    color: var(--color-heading);
  }

  .mobile-nav-active .navmenu > ul {
    display: block;
  }
}

/*--------------------------------------------------------------
# 7. HERO SECTION
--------------------------------------------------------------*/
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background-color: #ffffff;
  position: relative;
  overflow: hidden;
}

.hero-content h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 16px;
}

.hero-content p {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: #1a1a1a;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-image img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

.hero-image:hover img {
  transform: scale(1.03);
}

@media (max-width: 992px) {
  .hero {
    padding: 110px 0 60px;
    text-align: center;
  }

  .hero-btns {
    justify-content: center;
  }

  .hero-image {
    margin-top: 40px;
  }
}

/*--------------------------------------------------------------
# 8. ABOUT / KURUMSAL
--------------------------------------------------------------*/
.about {
  background-color: var(--color-bg);
}

.about .row.align-items-stretch {
  min-height: 480px;
}

.about-image {
  position: relative;
  height: 100%;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: block;
}

.experience-badge {
  position: absolute;
  bottom: 20px;
  right: 16px;
  background-color: var(--color-accent);
  color: #fff;
  padding: 20px 22px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  min-width: 110px;
}

.experience-badge .years {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.experience-badge .badge-text {
  display: block;
  font-size: 0.82rem;
  line-height: 1.3;
  margin-top: 4px;
}

.about-content {
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.about-content .lead {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.about-content p {
  margin-bottom: 14px;
  color: var(--color-text);
  font-size: 0.95rem;
}

/* Hero section about-content için padding sıfırla */
#hero .about-content {
  padding-left: 32px;
}

@media (max-width: 992px) {
  #hero .about-content {
    padding-left: 0;
  }
}

.features-row {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid color-mix(in srgb, var(--color-accent), transparent 80%);
}

.feature-item {
  text-align: center;
  padding: 24px 16px;
  border-radius: 12px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  margin-bottom: 0;
}

.feature-item:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.feature-item .icon {
  font-size: 2.2rem;
  color: var(--color-accent);
  margin-bottom: 12px;
  display: block;
}

.feature-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-item p {
  font-size: 0.88rem;
  color: #666;
  margin-bottom: 0;
  line-height: 1.6;
}

@media (max-width: 992px) {
  .about-image {
    height: 320px;
  }

  .about-content {
    padding-left: 0;
    margin-top: 32px;
  }

  .experience-badge {
    right: 12px;
    bottom: 12px;
  }

  .features-row {
    margin-top: 32px;
    padding-top: 28px;
  }
}

/*--------------------------------------------------------------
# 9. ÇALIŞMA SÜRECİ (WORK PROCESS)
--------------------------------------------------------------*/
.work-process {
  background-color: var(--color-bg);
}

.work-process .steps-content h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.work-process .steps-content .lead {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.work-process .steps-content p {
  margin-bottom: 28px;
}

.steps-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.steps-list {
  position: relative;
  padding-left: 8px;
}

.step-number {
  position: relative;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: color-mix(in srgb, var(--color-accent), transparent 88%);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  z-index: 1;
  transition: all var(--transition);
  border: 2px solid transparent;
}

.step-item:not(:last-child) .step-number::after {
  content: "";
  position: absolute;
  top: 48px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: calc(100% + 12px);
  background-color: color-mix(in srgb, var(--color-accent), transparent 70%);
  z-index: 0;
}

.step-item:hover .step-number {
  background-color: var(--color-accent);
  color: #fff;
  transform: scale(1.08);
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 28px;
  position: relative;
}

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

.step-content {
  padding-top: 6px;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 0.93rem;
  margin-bottom: 0;
  color: var(--color-text);
}

/*--------------------------------------------------------------
# 10. MARKALAR
--------------------------------------------------------------*/
.brands {
  background-color: var(--color-bg);
}

.brands .section-title img {
  display: block;
  margin: 0 auto;
}

.brands-slider .swiper-wrapper {
  align-items: center !important;
}

.brands-slider .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 24px;
  height: auto !important;
}

.swiper-slide .brand-card {
  width: 100%;
  height: 100px;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
}

.swiper-slide .brand-card .brand-logo {
  max-width: 120px !important;
  max-height: 55px !important;
  width: auto !important;
  height: auto !important;
  object-fit: contain !important;
  display: block !important;
  margin: 0 auto !important;
}

.brand-logo:hover {
  filter: grayscale(0%);
  transform: scale(1.05);
}

.brands-slider .swiper-pagination {
  bottom: 0;
}

.navmenu .dropdown ul a img {
  height: 18px;
  width: auto;
  max-width: 70px;
  object-fit: contain;
  flex-shrink: 0;
}

.navmenu .dropdown ul.brands-dropdown {
  display: flex !important;
  flex-direction: column;
  min-width: 180px;
  padding: 8px;
  gap: 2px;
}

.navmenu .dropdown ul.brands-dropdown a {
  padding: 10px 16px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.navmenu .dropdown ul.brands-dropdown a span {
  display: none;
}

.navmenu .dropdown ul.brands-dropdown a img {
  height: 24px;
  max-width: 110px;
  width: auto;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter var(--transition), transform var(--transition);
}

.navmenu .dropdown ul.brands-dropdown a:hover img {
  filter: grayscale(0%);
  transform: scale(1.05);
}

.navmenu .dropdown ul.brands-dropdown a:hover {
  background-color: color-mix(in srgb, #fff, transparent 88%);
}

/*--------------------------------------------------------------
# 11. ÜRÜNLER / TEAM CARDS
--------------------------------------------------------------*/
.products {
  background-color: var(--color-bg);
}

.products .swiper-wrapper,
.team .swiper-wrapper {
  padding-bottom: 0 !important;
}

.products .team-slider,
.team .team-slider {
  overflow: visible !important;
  padding-bottom: 48px !important;
}

.products .swiper,
.team .swiper {
  overflow: hidden !important;
  padding-bottom: 48px !important;
}

.team .swiper-pagination,
.products .swiper-pagination {
  bottom: 0 !important;
}

/* Pagination bullets */
.team .swiper-pagination-bullet,
.products .swiper-pagination-bullet {
  background-color: color-mix(in srgb, var(--color-accent), transparent 60%);
  opacity: 1;
  width: 10px;
  height: 10px;
  transition: all var(--transition);
}

.team .swiper-pagination-bullet-active,
.products .swiper-pagination-bullet-active {
  background-color: var(--color-accent);
  width: 28px;
  border-radius: 5px;
}

/* Navigation buttons — slider dışına taşı */
.team .team-slider,
.products .team-slider {
  position: relative;
  padding: 0 50px;
}

.team .swiper-button-prev,
.team .swiper-button-next,
.products .swiper-button-prev,
.products .swiper-button-next {
  width: 38px;
  height: 38px;
  background-color: color-mix(in srgb, var(--color-accent), transparent 20%);
  border-radius: 50%;
  color: #fff;
  transition: background-color var(--transition);
  top: 40%;
}

.team .swiper-button-prev,
.products .swiper-button-prev {
  left: 0;
}

.team .swiper-button-next,
.products .swiper-button-next {
  right: 0;
}

.team .swiper-button-prev::after,
.team .swiper-button-next::after,
.products .swiper-button-prev::after,
.products .swiper-button-next::after {
  font-size: 14px;
}

.team .swiper-button-prev:hover,
.team .swiper-button-next:hover,
.products .swiper-button-prev:hover,
.products .swiper-button-next:hover {
  background-color: var(--color-accent);
}

/* Slide geçiş animasyonu */
.team .swiper-slide,
.products .swiper-slide {
  transition: transform 0.4s ease, opacity 0.4s ease;
}

/* Aktif slide */
.team .swiper-slide-active .team-card,
.products .swiper-slide-active .team-card {
  transform: scale(1.08);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
  opacity: 1;
}

/* Yan slideler */
.team .swiper-slide:not(.swiper-slide-active) .team-card,
.products .swiper-slide:not(.swiper-slide-active) .team-card {
  transform: scale(0.92);
  opacity: 0.6;
}

/* Swiper slide hizalama */
.swiper-slide {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
}

/* TEAM CARD */
.team-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
  margin: 0 6px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.team-card:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
}

.team-card .team-image {
  width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5f5f5;
  overflow: hidden;
}

.team-card .team-image img {
  max-height: 185px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.team-card:hover .team-image img {
  transform: scale(1.04);
}

.team-card .team-overlay {
  display: none;
}

.team-card .team-content {
  width: 100%;
  padding: 14px 12px;
  text-align: center;
  border-top: 1px solid #f0f0f0;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-card .team-content h3 {
  font-size: 13px;
  font-weight: 600;
  color: #333;
  margin: 0;
  letter-spacing: 0.3px;
  line-height: 1.4;
  word-break: keep-all;
}

/* Mobilde ok butonları */
@media (max-width: 576px) {
  .team .team-slider,
  .products .team-slider {
    padding: 0 36px;
  }
}

/*--------------------------------------------------------------
# 12. GALERİ / REFERANSLAR
--------------------------------------------------------------*/
.gallery {
  background-color: var(--color-bg);
}

.ref-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.ref-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 50px;
  border: 2px solid color-mix(in srgb, var(--color-accent), transparent 70%);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-nav);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.ref-filter-btn:hover,
.ref-filter-btn.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.ref-color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.ref-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 992px) {
  .ref-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .ref-grid {
    grid-template-columns: 1fr;
  }
}

.ref-card {
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  cursor: pointer;
}

.ref-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.13);
}

.ref-card.hidden {
  display: none;
}

.ref-card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.ref-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.ref-card:hover .ref-card-img img {
  transform: scale(1.06);
}

.ref-card-body {
  padding: 16px 20px 18px;
  background: #fff;
}

.ref-card-body h3 {
  font-size: 15px;
  font-weight: 700;
  color: #222;
  margin: 0 0 8px;
}

/* ref-meta — ikon + yazı listesi */
.ref-meta {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.ref-meta li {
  font-size: 12px;
  color: #666;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ref-meta li i {
  color: var(--color-accent);
  font-size: 13px;
  flex-shrink: 0;
}

/*--------------------------------------------------------------
# 13. SSS (FAQ)
--------------------------------------------------------------*/
.faq {
  background-color: var(--color-bg);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid color-mix(in srgb, var(--color-text), transparent 88%);
  border-radius: var(--radius);
  padding: 24px 28px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
}

.faq-item:hover {
  border-color: color-mix(in srgb, var(--color-accent), transparent 60%);
}

.faq-item.faq-active {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.faq-item h3 {
  font-size: 1rem;
  font-weight: 600;
  padding-right: 36px;
  margin-bottom: 0;
  transition: color var(--transition);
}

.faq-item.faq-active h3 {
  color: var(--color-accent);
}

.faq-toggle {
  position: absolute;
  right: 24px;
  top: 24px;
  font-size: 22px;
  color: var(--color-accent);
  transition: transform var(--transition);
  line-height: 1;
}

.faq-item.faq-active .faq-toggle {
  transform: rotate(45deg);
}

.faq-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease, opacity 0.3s ease;
  visibility: hidden;
  opacity: 0;
}

.faq-item.faq-active .faq-content {
  grid-template-rows: 1fr;
  visibility: visible;
  opacity: 1;
  padding-top: 14px;
}

.faq-content p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  overflow: hidden;
}

.faq-card {
  background-color: color-mix(in srgb, var(--color-accent), transparent 93%);
  border: 1px solid color-mix(in srgb, var(--color-accent), transparent 80%);
  border-radius: 12px;
  padding: 36px;
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.faq-card i {
  font-size: 44px;
  color: var(--color-accent);
  margin-bottom: 16px;
  display: block;
}

.faq-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.faq-card p {
  font-size: 0.93rem;
  margin-bottom: 24px;
  line-height: 1.6;
  color: color-mix(in srgb, var(--color-text), transparent 20%);
}

/*--------------------------------------------------------------
# 14. İLETİŞİM
--------------------------------------------------------------*/
.contact {
  background-color: var(--color-bg);
}

.contact-card,
.contact-form-wrapper {
  background-color: var(--color-surface);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  padding: 32px;
  position: relative;
  overflow: hidden;
  height: 100%;
}

.contact-card::before,
.contact-form-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), color-mix(in srgb, var(--color-accent), #fff 40%));
}

.contact-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding-bottom: 14px;
  position: relative;
}

.contact-card h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 44px;
  height: 2px;
  background-color: var(--color-accent);
}

.contact-card p {
  font-size: 0.93rem;
  margin-bottom: 24px;
  line-height: 1.65;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

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

.contact-item i {
  font-size: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.88rem;
  margin-bottom: 0;
}

.social-links {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: color-mix(in srgb, var(--color-accent), transparent 88%);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: all var(--transition);
}

.social-links a:hover {
  background-color: var(--color-accent);
  color: #fff;
  transform: translateY(-3px);
}

.contact-form-wrapper h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding-bottom: 14px;
  position: relative;
}

.contact-form-wrapper h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 44px;
  height: 2px;
  background-color: var(--color-accent);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 11px 16px;
  font-size: 14px;
  font-family: var(--font-default);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid color-mix(in srgb, var(--color-text), transparent 78%);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent), transparent 84%);
}

.form-control::placeholder {
  color: color-mix(in srgb, var(--color-text), transparent 55%);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.php-email-form .loading,
.php-email-form .error-message,
.php-email-form .sent-message {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
}

.php-email-form .loading {
  background-color: var(--color-surface);
  text-align: center;
}

.php-email-form .error-message {
  background-color: #fde8e8;
  color: #c0392b;
}

.php-email-form .sent-message {
  background-color: #e8f5e9;
  color: #27ae60;
}

/*--------------------------------------------------------------
# 15. FOOTER
--------------------------------------------------------------*/
.footer {
  background-color: #fcebef;
  padding: 48px 0 0;
  font-size: 14px;
  color: var(--color-text);
}

.footer h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-heading);
}

.footer .icon {
  font-size: 22px;
  color: var(--color-accent);
  margin-right: 14px;
  flex-shrink: 0;
  line-height: 0;
  margin-top: 2px;
}

.footer p {
  margin-bottom: 4px;
  line-height: 1.6;
}

.footer .footer-social {
  display: flex;
  gap: 10px;
}

.footer .footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--color-text), transparent 55%);
  color: color-mix(in srgb, var(--color-text), transparent 40%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: all var(--transition);
}

.footer .footer-social a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid color-mix(in srgb, var(--color-text), transparent 88%);
  padding: 20px 0;
  margin-top: 36px;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: color-mix(in srgb, var(--color-text), transparent 30%);
}

.footer-bottom a {
  color: var(--color-accent);
  font-weight: 500;
}

/*--------------------------------------------------------------
# 17. TEKLİF SAYFASI
--------------------------------------------------------------*/
.teklif-hero {
  padding: 140px 0 80px;
  background-color: #ffffff;
  position: relative;
}

.teklif-hero h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.teklif-hero p {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--color-text);
}

.teklif-hero-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.teklif-hero-stats .stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #000000;
  font-size: 0.9rem;
  font-weight: 500;
}

.teklif-hero-stats .stat-item i {
  font-size: 1.2rem;
  color: var(--color-accent);
}

.teklif-info {
  background-color: var(--color-surface);
  border-radius: 12px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 100px;
}

.teklif-info h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-heading);
}

.teklif-info > p {
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: 24px;
}

.teklif-info-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid color-mix(in srgb, var(--color-text), transparent 88%);
}

.teklif-info-card:last-of-type {
  border-bottom: none;
}

.teklif-info-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background-color: color-mix(in srgb, var(--color-accent), transparent 90%);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.teklif-info-card h5 {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 3px;
  color: var(--color-heading);
}

.teklif-info-card p {
  font-size: 0.85rem;
  margin-bottom: 0;
  color: var(--color-text);
  line-height: 1.5;
}

.teklif-brands-box {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid color-mix(in srgb, var(--color-text), transparent 88%);
}

.teklif-brands-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.teklif-brands-logos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 45px;
  align-items: center;
}

.teklif-brands-logos .brand-bader {
  max-height: 35px;
  width: auto;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter var(--transition);
}

.teklif-brands-logos .brand-roofer {
  max-height: 45px;
  width: auto;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter var(--transition);
}

.teklif-brands-logos img:hover {
  filter: grayscale(0%);
}

.teklif-brands-logos img:hover {
  filter: grayscale(0%);
}

.teklif-form-wrapper {
  background-color: var(--color-surface);
  border-radius: 12px;
  padding: 36px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.teklif-form-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), color-mix(in srgb, var(--color-accent), #fff 40%));
}

.teklif-form-header {
  margin-bottom: 28px;
}

.teklif-form-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-heading);
}

.teklif-form-header p {
  font-size: 0.92rem;
  color: var(--color-text);
  margin: 0;
}

.teklif-alert {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.teklif-alert i {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.teklif-alert strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
}

.teklif-alert p {
  font-size: 0.88rem;
  margin: 0;
}

.teklif-success {
  background-color: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
}

.teklif-error {
  background-color: #fce4ec;
  color: #c62828;
  border: 1px solid #f8bbd0;
}

.input-icon-wrap {
  position: relative;
}

.input-icon-wrap > i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: color-mix(in srgb, var(--color-text), transparent 45%);
  font-size: 15px;
  pointer-events: none;
  z-index: 1;
}

.input-icon-wrap .form-control {
  padding-left: 40px;
}

.form-group textarea.form-control {
  padding-left: 16px;
}

.required {
  color: #e53935;
  font-size: 0.85rem;
}

.optional {
  color: color-mix(in srgb, var(--color-text), transparent 40%);
  font-size: 0.82rem;
  font-weight: 400;
}

.input-error {
  border-color: #e53935 !important;
  box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15) !important;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 14px;
  padding-right: 36px;
}

.file-upload-wrap {
  position: relative;
}

.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  z-index: -1;
}

.file-upload-label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border: 2px dashed color-mix(in srgb, var(--color-text), transparent 70%);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  color: color-mix(in srgb, var(--color-text), transparent 30%);
  transition: all var(--transition);
  background-color: color-mix(in srgb, var(--color-accent), transparent 96%);
}

.file-upload-label:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: color-mix(in srgb, var(--color-accent), transparent 92%);
}

.file-upload-label i {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.file-hint {
  font-size: 11px;
  color: color-mix(in srgb, var(--color-text), transparent 50%);
  margin: 6px 0 0;
}

.form-check-custom {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 4px 0;
}

.form-check-custom input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.form-check-custom label {
  font-size: 0.88rem;
  color: var(--color-text);
  cursor: pointer;
  line-height: 1.5;
}

.form-check-custom label a {
  color: var(--color-accent);
  font-weight: 500;
}

.teklif-submit-btn {
  width: 100%;
  padding: 14px 30px;
  background-color: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-nav);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition);
}

.teklif-submit-btn:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--color-accent), #000 12%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.teklif-submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.teklif-submit-btn .btn-text,
.teklif-submit-btn .btn-loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

@keyframes spin-icon {
  to { transform: rotate(360deg); }
}

.spin {
  display: inline-block;
  animation: spin-icon 0.8s linear infinite;
}

@media (max-width: 992px) {
  .teklif-info {
    position: static;
  }

  .teklif-form-wrapper {
    padding: 24px 20px;
  }
}

/*--------------------------------------------------------------
# 18. RESPONSIVE YARDIMCILAR
--------------------------------------------------------------*/
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    padding-bottom: 40px;
  }

  .section-title h2 {
    font-size: 26px;
  }

  .faq-item {
    padding: 18px 20px;
  }

  .faq-toggle {
    right: 18px;
    top: 18px;
  }

  .contact-card,
  .contact-form-wrapper {
    padding: 24px 20px;
  }
}

@media (max-width: 576px) {
  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }

  .steps-cta {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  [data-aos-delay] {
    transition-delay: 0ms !important;
  }
}

/* Toggle Var/Yok butonları */
.toggle-group {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.toggle-option {
  flex: 1;
  cursor: pointer;
}

.toggle-option input[type="radio"] {
  display: none;
}

.toggle-option span {
  display: block;
  text-align: center;
  padding: 10px 0;
  border-radius: 8px;
  border: 2px solid color-mix(in srgb, var(--color-accent), transparent 70%);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  transition: all 0.25s ease;
}

.toggle-option input[type="radio"]:checked + span {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.toggle-option:hover span {
  border-color: var(--color-accent);
}

.toggle-option.toggle-error span {
  border-color: #dc3545 !important;
  background-color: rgba(220, 53, 69, 0.05);
}