@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@400;500;600&family=Outfit:wght@700;800;900&display=swap');

/* ==========================================
   DESIGN TOKENS & VARIABLES
   ========================================== */
:root {
  /* Color Palette (HSL Tailored) */
  --clr-primary-dark: hsl(0, 0%, 8%);        /* Charcoal/Black for text/titles */
  --clr-accent-gold: hsl(43, 45%, 45%);      /* Elegant gold shade */
  --clr-accent-gold-light: hsl(43, 45%, 90%);/* Soft gold tone */
  --clr-bg-cream: hsl(36, 25%, 97%);         /* Soft background cream */
  --clr-bg-white: hsl(0, 0%, 100%);          /* Crisp white */
  --clr-text-main: hsl(0, 0%, 20%);          /* Main body text */
  --clr-text-muted: hsl(0, 0%, 45%);         /* Secondary / helper text */
  --clr-border: hsl(0, 0%, 90%);             /* Soft border */
  
  /* Typography */
  --ff-serif: 'Playfair Display', Georgia, serif;
  --ff-sans: 'Montserrat', Helvetica, Arial, sans-serif;
  
  /* Transitions */
  --transition-fast: 0.25s ease;
  --transition-normal: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Layout constraints */
  --max-width: 1400px;
  --header-height: 95px;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--ff-sans);
  background-color: var(--clr-bg-white);
  color: var(--clr-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button {
  background: none;
  border: none;
  font: inherit;
  cursor: pointer;
  outline: none;
}

/* Utility Containers */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.section-padding {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-serif);
  color: var(--clr-primary-dark);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ==========================================
   HEADER / NAVIGATION
   ========================================== */
.header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--clr-border);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header-wrapper.scrolled {
  height: 80px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

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

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-img {
  height: 65px;
  width: auto;
  object-fit: contain;
  transition: height var(--transition-normal);
}

.header-wrapper.scrolled .logo-img {
  height: 52px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-text-main);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--clr-accent-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--clr-accent-gold);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ==========================================
   DROPDOWN MENU
   ========================================== */
.nav-item-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(15px);
  background-color: var(--clr-bg-white);
  border: 1px solid var(--clr-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  list-style: none;
  padding: 1rem 0;
  min-width: 260px;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 1010;
  display: flex;
  flex-direction: column;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background-color: var(--clr-bg-white);
  border-left: 1px solid var(--clr-border);
  border-top: 1px solid var(--clr-border);
}

.nav-item-dropdown:hover .dropdown-menu {
  opacity: 1;
  pointer-events: all;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu li {
  width: 100%;
}

.dropdown-menu li a {
  display: block;
  padding: 0.7rem 1.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--clr-text-main);
  transition: all var(--transition-fast);
  text-align: left;
  border: none;
}

.dropdown-menu li a:hover {
  color: var(--clr-accent-gold);
  background-color: var(--clr-bg-cream);
  padding-left: 1.8rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.btn-nav-cta {
  display: inline-block;
  text-decoration: none;
  color: var(--clr-text-main);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.8rem 1.8rem;
  border: 1px solid var(--clr-primary-dark);
  background-color: transparent;
  transition: all var(--transition-normal);
}

.btn-nav-cta:hover {
  background-color: var(--clr-primary-dark);
  color: var(--clr-bg-white);
}

/* Mobile Hamburger Menu */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 25px;
  height: 16px;
  background: none;
  border: none;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--clr-primary-dark);
  transition: all var(--transition-fast);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  position: relative;
  min-height: 75vh;
  padding-top: var(--header-height);
  display: flex;
  align-items: stretch;
  background-color: var(--clr-bg-white);
  overflow: hidden;
}

.hero-container {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: calc(75vh - var(--header-height));
  position: relative;
}

.hero-content {
  width: 50%;
  max-width: 650px;
  padding-left: max(2rem, calc((100vw - var(--max-width)) / 2 + 2rem));
  padding-right: 2rem;
  padding-top: 4rem;
  padding-bottom: 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  z-index: 3;
  animation: fadeInUp 1s var(--transition-slow);
}

.hero-logo-large {
  max-width: 320px;
  margin-bottom: 2rem;
}

.hero-subtitle {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-text-main);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
}

.btn-primary {
  display: inline-block;
  text-decoration: none;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1.2rem 2.2rem;
  background-color: var(--clr-primary-dark);
  color: var(--clr-bg-white);
  border: 1px solid var(--clr-primary-dark);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--clr-accent-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
  z-index: -1;
}

.btn-primary:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-primary:hover {
  border-color: var(--clr-accent-gold);
}

.btn-secondary {
  display: inline-block;
  text-decoration: none;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1.2rem 2.2rem;
  background-color: transparent;
  color: var(--clr-primary-dark);
  border: 1px solid var(--clr-border);
  transition: all var(--transition-normal);
}

.btn-secondary:hover {
  border-color: var(--clr-primary-dark);
  background-color: rgba(0, 0, 0, 0.02);
}

.hero-visual {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  animation: scaleIn 1.4s var(--transition-slow);
}

.hero-visual::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, 
    rgba(255, 255, 255, 1) 0%, 
    rgba(255, 255, 255, 0.92) 35%, 
    rgba(255, 255, 255, 0.3) 70%, 
    rgba(255, 255, 255, 0) 100%
  );
  z-index: 2;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  transform: scale(1.05);
  transition: transform 6s ease-out;
}

.hero-visual:hover .hero-img {
  transform: scale(1);
}

/* Slider indicators (dots) */
.slider-indicators {
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 10;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--clr-border);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.dot.active {
  background-color: var(--clr-primary-dark);
  transform: scale(1.5);
}

/* ==========================================
   USP SECTION (VALUE PROPOSITION BAR)
   ========================================== */
.usp-bar {
  background-color: var(--clr-bg-white);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: 3rem 0;
}

.usp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
}

.usp-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
}

.usp-icon {
  margin-bottom: 1.2rem;
  color: var(--clr-accent-gold);
}

.usp-icon svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
}

.usp-title {
  font-family: var(--ff-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-primary-dark);
  margin-bottom: 0.5rem;
}

.usp-desc {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  font-weight: 400;
}

/* Split line between items */
.usp-item:not(:last-child) {
  border-right: 1px solid var(--clr-border);
}

/* ==========================================
   SERVICES SECTION (HİZMETLERİMİZ)
   ========================================== */
.services-section {
  background-color: var(--clr-bg-white);
}

.section-header {
  text-align: center;
  margin-bottom: 4.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clr-accent-gold);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-tag::before, .section-tag::after {
  content: '';
  width: 24px;
  height: 1px;
  background-color: var(--clr-accent-gold);
}

.section-title {
  font-size: 2.2rem;
  text-transform: uppercase;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--clr-primary-dark);
  max-width: 700px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: var(--clr-bg-white);
  border: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-img-wrapper {
  position: relative;
  width: 100%;
  padding-top: 65%; /* 16:10 aspect ratio */
  overflow: hidden;
}

.service-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-img {
  transform: scale(1.08);
}

.service-info {
  padding: 2.2rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex-grow: 1;
  background-color: var(--clr-bg-white);
  transition: background-color var(--transition-normal);
}

.service-icon-box {
  margin-bottom: 1.2rem;
  color: var(--clr-accent-gold);
  transition: transform var(--transition-normal);
}

.service-icon-box svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
}

.service-card-title {
  font-family: var(--ff-serif);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
  color: var(--clr-primary-dark);
}

.service-card-desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 1.8rem;
  max-width: 260px;
}

.service-link {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.2rem;
  transition: all var(--transition-fast);
}

.service-link svg {
  transition: transform var(--transition-fast);
}

.service-card:hover {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.05);
  border-color: rgba(212, 175, 55, 0.3);
}

.service-card:hover .service-icon-box {
  transform: translateY(-5px);
}

.service-card:hover .service-link {
  color: var(--clr-accent-gold);
  border-color: var(--clr-accent-gold);
}

.service-card:hover .service-link svg {
  transform: translateX(5px);
}

/* ==========================================
   ABOUT & SHOWROOM SECTION
   ========================================== */
.about-section {
  background-color: var(--clr-bg-cream);
  position: relative;
  overflow: hidden;
}

.about-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: center;
}

.about-content {
  padding-right: 2rem;
}

.about-content .section-tag {
  justify-content: flex-start;
}

.about-content .section-title {
  margin-bottom: 2rem;
  font-size: 2.2rem;
}

.about-text {
  font-size: 0.92rem;
  color: var(--clr-text-main);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.about-text p {
  margin-bottom: 1.5rem;
}

.btn-about {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1.1rem 2.2rem;
  border: 1px solid var(--clr-primary-dark);
  background-color: transparent;
  transition: all var(--transition-normal);
}

.btn-about:hover {
  background-color: var(--clr-primary-dark);
  color: var(--clr-bg-white);
}

/* Showroom Floating Showcase Card overlay */
.showroom-showcase {
  position: relative;
  width: 100%;
  height: 550px;
}

.showroom-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.showroom-card {
  position: absolute;
  bottom: -30px;
  left: -40px;
  background-color: var(--clr-bg-white);
  padding: 3rem 2.5rem;
  width: 320px;
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.07);
  border-radius: 2px;
  z-index: 5;
}

.showroom-icon {
  color: var(--clr-accent-gold);
  margin-bottom: 1.2rem;
}

.showroom-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
}

.showroom-title {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.showroom-desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 1.8rem;
}

.showroom-link {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.2rem;
  transition: all var(--transition-fast);
}

.showroom-link:hover {
  color: var(--clr-accent-gold);
  border-color: var(--clr-accent-gold);
}

/* ==========================================
   FOOTER SECTION
   ========================================== */
.footer {
  background-color: var(--clr-primary-dark);
  color: var(--clr-bg-white);
  padding: 5rem 0 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  max-width: 200px;
  margin-bottom: 1.5rem;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1.8rem;
  max-width: 280px;
}

.footer-socials {
  display: flex;
  gap: 1.2rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-normal);
}

.social-link:hover {
  background-color: var(--clr-bg-white);
  color: var(--clr-primary-dark);
  border-color: var(--clr-bg-white);
  transform: translateY(-3px);
}

.footer-heading {
  font-family: var(--ff-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.8rem;
  color: var(--clr-bg-white);
  position: relative;
  display: inline-block;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 30px;
  height: 1px;
  background-color: var(--clr-accent-gold);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--clr-accent-gold);
  padding-left: 5px;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.contact-item svg {
  color: var(--clr-accent-gold);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom-links {
  display: flex;
  gap: 2rem;
}

.footer-bottom-links a:hover {
  color: var(--clr-accent-gold);
}

/* ==========================================
   MODAL WINDOW (QUOTATION FORM)
   ========================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background-color: var(--clr-bg-white);
  padding: 3.5rem 3rem;
  width: 100%;
  max-width: 580px;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  transform: translateY(30px);
  transition: transform var(--transition-normal);
  border-top: 4px solid var(--clr-accent-gold);
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.5rem;
  color: var(--clr-text-muted);
  transition: color var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--clr-primary-dark);
}

.modal-title {
  font-size: 1.8rem;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  text-align: center;
}

.modal-subtitle {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin-bottom: 2.2rem;
  text-align: center;
  line-height: 1.5;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--clr-primary-dark);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  font-family: var(--ff-sans);
  font-size: 0.85rem;
  border: 1px solid var(--clr-border);
  background-color: var(--clr-bg-cream);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--clr-accent-gold);
  background-color: var(--clr-bg-white);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-form-submit {
  width: 100%;
  padding: 1.1rem;
  background-color: var(--clr-primary-dark);
  color: var(--clr-bg-white);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--clr-primary-dark);
  transition: all var(--transition-normal);
  margin-top: 1rem;
}

.btn-form-submit:hover {
  background-color: var(--clr-accent-gold);
  border-color: var(--clr-accent-gold);
}

/* ==========================================
   RESPONSIVENESS / MEDIA QUERIES
   ========================================== */

/* Large Tablets / Small Desktops */
@media (max-width: 1100px) {
  .hero-container {
    gap: 2rem;
  }
  
  .hero-subtitle {
    font-size: 0.85rem;
    margin-bottom: 1.8rem;
  }
  
  .usp-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  
  .usp-item:nth-child(2) {
    border-right: none;
  }
  
  .usp-item:nth-child(even) {
    border-right: none;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-layout {
    gap: 3rem;
  }
  
  .showroom-showcase {
    height: 480px;
  }
  
  .showroom-card {
    left: -20px;
    bottom: -20px;
    padding: 2.2rem 2rem;
    width: 280px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

/* Tablets / Mobile Menu Trigger */
@media (max-width: 850px) {
  :root {
    --header-height: 70px;
  }
  
  .hamburger-btn {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--clr-bg-white);
    flex-direction: column;
    padding: 3rem 2rem;
    gap: 2.5rem;
    align-items: center;
    border-top: 1px solid var(--clr-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  /* Mobile dropdown styles */
  .nav-item-dropdown .dropdown-menu {
    display: none;
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: all;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: 0.5rem 0;
    background-color: transparent;
    width: 100%;
    text-align: center;
  }
  
  .nav-item-dropdown.active .dropdown-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .dropdown-menu::before {
    display: none;
  }
  
  /* hamburger transformations */
  .hamburger-btn.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  
  .hamburger-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger-btn.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  
  .header-actions {
    gap: 1rem;
  }
  
  .btn-nav-cta {
    padding: 0.6rem 1.2rem;
    font-size: 0.75rem;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-content {
    padding-right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-visual {
    height: 450px;
    min-height: 350px;
  }
  
  .slider-indicators {
    right: 1rem;
  }
  
  .about-layout {
    grid-template-columns: 1fr;
  }
  
  .about-content {
    padding-right: 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .about-content .section-tag {
    justify-content: center;
  }
  
  .showroom-showcase {
    max-width: 550px;
    margin: 0 auto;
  }
}

/* Mobile Viewports */
@media (max-width: 580px) {
  .section-padding {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }
  
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  
  .usp-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 1.5rem;
  }
  
  .usp-item {
    border-right: none !important;
    border-bottom: none !important;
    padding-bottom: 0 !important;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .showroom-showcase {
    height: 380px;
  }
  
  .showroom-card {
    left: 1.5rem;
    right: 1.5rem;
    bottom: -40px;
    width: auto;
    padding: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .footer-bottom-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }
  
  .modal-content {
    padding: 2.5rem 1.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* ==========================================
   KEYFRAME ANIMATIONS
   ========================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ================================================================= */
/* START OF FOOTER CREDITS COMPONENT                                 */
/* ================================================================= */
:root {
  /* Default Theme (Light Mode) */
  --fc-bg: #ffffff;
  --fc-border: rgba(15, 23, 42, 0.06);
  --fc-text-primary: #0f172a;
  --fc-text-muted: #64748b;
  --fc-accent-purple: #a855f7;
  --fc-font-sans: 'Inter', sans-serif;
  --fc-font-display: 'Outfit', sans-serif;
  --fc-logo-shadow: rgba(168, 85, 247, 0.4);
}

/* System Auto-Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --fc-bg: #090d16;
    --fc-border: rgba(255, 255, 255, 0.08);
    --fc-text-primary: #f8fafc;
    --fc-text-muted: #94a3b8;
    --fc-accent-purple: #c084fc;
    --fc-logo-shadow: rgba(192, 132, 252, 0.5);
  }
}

/* Manual Theme Overrides (for testing or manual styling) */
.theme-dark {
  --fc-bg: #090d16;
  --fc-border: rgba(255, 255, 255, 0.08);
  --fc-text-primary: #f8fafc;
  --fc-text-muted: #94a3b8;
  --fc-accent-purple: #c084fc;
  --fc-logo-shadow: rgba(192, 132, 252, 0.5);
}

.theme-light {
  --fc-bg: #ffffff;
  --fc-border: rgba(15, 23, 42, 0.06);
  --fc-text-primary: #0f172a;
  --fc-text-muted: #64748b;
  --fc-accent-purple: #a855f7;
  --fc-logo-shadow: rgba(168, 85, 247, 0.4);
}

/* Footer Container */
.isecret-credits-footer {
  width: 100%;
  font-family: var(--fc-font-sans);
  background-color: var(--fc-bg);
  border-top: 1px solid var(--fc-border);
  color: var(--fc-text-muted);
  padding: 18px 0;
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  box-sizing: border-box;
}

.isecret-credits-footer .fc-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px; /* Sağa ve sola daha geniş boşluk ekleyerek kenarlardan çektik */
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  box-sizing: border-box;
}

/* Left Side (Copyright) */
.isecret-credits-footer .fc-left {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

/* Right Side (Credits) */
.isecret-credits-footer .fc-right {
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* Brand Logo Link */
.isecret-credits-footer .brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  line-height: 1;
}

.isecret-credits-footer .brand-logo:hover {
  transform: scale(1.03);
  opacity: 0.95;
}

/* Inline SVG Logo Styling in Footer */
.isecret-credits-footer .isecret-logo-svg {
  display: inline-block;
  vertical-align: middle;
  height: 22px;
  width: auto;
}

.isecret-credits-footer .isecret-logo-svg .logo-text {
  font-family: var(--fc-font-display);
  font-weight: 900;
  font-size: 38px;
  fill: var(--fc-text-primary);
  transition: fill 0.3s ease;
}

.isecret-credits-footer .isecret-logo-svg .logo-i-bar {
  fill: var(--fc-accent-purple);
  transition: fill 0.3s ease;
}

.isecret-credits-footer .isecret-logo-svg .logo-heart-path {
  fill: var(--fc-accent-purple);
  transform-origin: 12px 12px;
  animation: svgHeartPulse 1.8s infinite ease-in-out;
  filter: drop-shadow(0 0 2px var(--fc-logo-shadow));
  transition: fill 0.3s ease;
}

@keyframes svgHeartPulse {
  0% {
    transform: scale(0.9);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
  100% {
    transform: scale(0.9);
    opacity: 0.85;
  }
}

/* Responsive design for tablets/mobile screens */
@media (max-width: 640px) {
  .isecret-credits-footer {
    padding: 22px 0;
  }
  
  .isecret-credits-footer .fc-container {
    flex-direction: column;
    text-align: center;
    justify-content: center;
    padding: 0 20px;
    gap: 12px;
  }
  
  .isecret-credits-footer .fc-right {
    justify-content: center;
    flex-direction: row;
    gap: 4px;
  }
}
/* ================================================================= */
/* END OF FOOTER CREDITS COMPONENT                                   */
/* ================================================================= */

/* ==========================================
   MOBILE STICKY ACTION BAR
   ========================================== */
.sticky-action-bar {
  display: none;
}

@media (max-width: 850px) {
  .sticky-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1999;
    display: flex;
    align-items: center;
    justify-content: stretch;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  }

  /* Glowing light play animation (border-top) */
  .sticky-action-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, 
      rgba(212, 175, 55, 0.1) 0%, 
      rgba(212, 175, 55, 0.9) 50%, 
      rgba(212, 175, 55, 0.1) 100%
    );
    background-size: 200% 100%;
    animation: goldLightRun 3s linear infinite;
  }

  .sab-btn {
    flex: 1;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    color: var(--clr-bg-white);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: background-color var(--transition-fast);
    text-decoration: none;
    position: relative;
  }

  .sab-whatsapp {
    background-color: #25d366;
    color: #ffffff;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
  }

  .sab-whatsapp:hover {
    background-color: #20ba5a;
  }

  .sab-whatsapp svg {
    color: #ffffff;
    animation: whatsappGlow 2.5s infinite ease-in-out;
  }

  /* Shimmer / light play reflection effect on WhatsApp button background */
  .sab-whatsapp::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 60px;
    height: 100%;
    background: linear-gradient(90deg, 
      rgba(255, 255, 255, 0) 0%, 
      rgba(255, 255, 255, 0.35) 50%, 
      rgba(255, 255, 255, 0) 100%
    );
    transform: skewX(-20deg);
    animation: shineSweep 4s infinite ease-in-out;
  }

  .sab-call:hover {
    background-color: rgba(212, 175, 55, 0.15);
  }

  .sab-call svg {
    color: var(--clr-accent-gold);
    animation: pulseIcon 2s infinite ease-in-out;
  }

  body {
    padding-bottom: 60px; /* Push content up on mobile so nothing gets covered */
  }
}

/* Animations for Action Bar */
@keyframes goldLightRun {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

@keyframes pulseIcon {
  0% {
    transform: scale(0.95);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(0.95);
  }
}

@keyframes whatsappGlow {
  0% {
    filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.3));
    transform: scale(0.95);
  }
  50% {
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.95));
    transform: scale(1.1);
  }
  100% {
    filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.3));
    transform: scale(0.95);
  }
}

@keyframes shineSweep {
  0% {
    left: -150%;
  }
  50% {
    left: 150%;
  }
  100% {
    left: 150%;
  }
}

/* ==========================================
   CONCEPTS SECTION STYLING
   ========================================== */
.concepts-section {
  background-color: var(--clr-bg-alt);
}

.concepts-section .section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.filter-container {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.filter-btn {
  font-family: var(--ff-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  background-color: var(--clr-bg-white);
  border: 1px solid var(--clr-border);
  padding: 0.6rem 1.4rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border-radius: 2px;
}

.filter-btn:hover {
  color: var(--clr-accent-gold);
  border-color: var(--clr-accent-gold);
}

.filter-btn.active {
  color: var(--clr-bg-white);
  background-color: var(--clr-primary-dark);
  border-color: var(--clr-primary-dark);
}

.concepts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  min-height: 400px;
}

.concept-card-item {
  display: none;
  background-color: var(--clr-bg-white);
  border: 1px solid var(--clr-border);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
  transition: all var(--transition-normal);
  animation: fadeInConcept 0.5s ease-in-out forwards;
}

.concept-card-item.show {
  display: flex;
  flex-direction: column;
}

.concept-card-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.concept-card-img-wrapper {
  position: relative;
  width: 100%;
  padding-top: 66.67%; /* 3:2 aspect ratio */
  overflow: hidden;
}

.concept-card-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.concept-card-info {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.concept-card-category {
  font-size: 0.75rem;
  color: var(--clr-accent-gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.concept-card-title {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  color: var(--clr-primary-dark);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  letter-spacing: 0.03em;
}

.concept-card-desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.concept-card-link {
  font-family: var(--ff-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
  transition: color var(--transition-fast);
}

.concept-card-link:hover {
  color: var(--clr-accent-gold);
}

.concept-card-link svg {
  transition: transform var(--transition-fast);
}

.concept-card-link:hover svg {
  transform: translateX(3px);
}

@keyframes fadeInConcept {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .concepts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 650px) {
  .concepts-grid {
    grid-template-columns: 1fr;
  }
  .concept-card-info {
    padding: 1.5rem;
  }
}

/* ==========================================
   GLOBAL GALLERY & LIGHTBOX CSS STYLES
   ========================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  padding-top: 100%;
  overflow: hidden;
  border: 1px solid var(--clr-border);
  cursor: pointer;
}

.gallery-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-icon {
  color: var(--clr-bg-white);
  font-size: 1.5rem;
  border: 1px solid var(--clr-bg-white);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(15px);
  transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-item-icon {
  transform: translateY(0);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: all;
  visibility: visible;
}

.lightbox-container {
  position: relative;
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border: 3px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -45px;
  right: 0;
  color: var(--clr-bg-white);
  font-size: 2.2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.lightbox-close:hover {
  color: var(--clr-accent-gold);
}

.lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-bg-white);
  font-size: 2.5rem;
  cursor: pointer;
  transition: color var(--transition-fast);
  user-select: none;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-arrow:hover {
  color: var(--clr-accent-gold);
}

.lightbox-prev {
  left: -80px;
}

.lightbox-next {
  right: -80px;
}

.lightbox-counter {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
  margin-top: 1rem;
  letter-spacing: 0.1em;
}

@media (max-width: 850px) {
  .lightbox-prev {
    left: 10px;
  }
  .lightbox-next {
    right: 10px;
  }
  .lightbox-arrow {
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
  }
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr !important;
  }
}