/* ==========================================================================
   ESEN YAPI - Modern & Premium Kurumsal Tasarım Sistemi
   Tasarım Referansı: İvme Labs Premium Kurumsal Standartları
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Caveat:wght@600;700&display=swap');

:root {
  --color-white: #FFFFFF;
  --color-bg-light: #F7F9FC;
  --color-navy: #0B1F3A;
  --color-navy-dark: #061324;
  --color-navy-light: #152E52;
  --color-primary: #087AC1;
  --color-primary-hover: #0667a3;
  --color-accent: #1296E8;
  --color-accent-light: #EAF6FD;
  --color-text: #172033;
  --color-text-muted: #667085;
  --color-border: #E4E7EC;
  --color-border-light: #EEF2F6;
  --color-success: #10B981;
  --color-whatsapp: #25D366;
  
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-script: 'Caveat', cursive;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(11, 31, 58, 0.04), 0 1px 2px rgba(11, 31, 58, 0.02);
  --shadow-card: 0 4px 16px -2px rgba(11, 31, 58, 0.06), 0 2px 6px -1px rgba(11, 31, 58, 0.03);
  --shadow-hover: 0 16px 32px -4px rgba(11, 31, 58, 0.10), 0 6px 16px -2px rgba(11, 31, 58, 0.05);
  --shadow-hero: 0 20px 40px -10px rgba(11, 31, 58, 0.15);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg-light);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  padding-bottom: 0;
}

body.has-bottom-bar {
  padding-bottom: 72px;
}

@media (min-width: 992px) {
  body.has-bottom-bar {
    padding-bottom: 0;
  }
}

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

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

button, input, select, textarea {
  font: inherit;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-sm {
  padding-top: 48px;
  padding-bottom: 48px;
}

.section-header {
  margin-bottom: 40px;
}

.section-header.text-center {
  text-align: center;
}

.sub-badge {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-top: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(8, 122, 193, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(8, 122, 193, 0.45);
}

.btn-navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.btn-navy:hover {
  background-color: var(--color-navy-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(11, 31, 58, 0.25);
}

.btn-outline-white {
  background-color: rgba(11, 31, 58, 0.45);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}

.btn-outline-white:hover {
  background-color: rgba(11, 31, 58, 0.75);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--color-white);
  color: var(--color-navy);
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
  background-color: #F8FAFC;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: 0 2px 10px rgba(11, 31, 58, 0.03);
  transition: all var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(11, 31, 58, 0.08);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

/* Logo */
.logo-wrapper {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-wrapper img {
  height: 48px;
  width: auto;
  display: block;
}

/* Nav Menu */
.nav-menu {
  display: none;
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
  }
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

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

/* Dropdown */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: -16px;
  min-width: 220px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--color-border);
  padding: 8px 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.nav-item.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item a {
  display: block;
  padding: 10px 20px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
}

.dropdown-item a:hover {
  background-color: var(--color-accent-light);
  color: var(--color-primary);
}

/* Header Right Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-phone-box {
  display: none;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

@media (min-width: 768px) {
  .header-phone-box {
    display: flex;
  }
}

.phone-icon-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--color-accent-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-meta {
  display: flex;
  flex-direction: column;
}

.phone-number {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--color-navy);
  line-height: 1.2;
}

.phone-subtext {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.header-btn {
  display: none;
}

@media (min-width: 576px) {
  .header-btn {
    display: inline-flex;
  }
}

/* Mobile Toggle */
.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  color: var(--color-navy);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

@media (min-width: 992px) {
  .mobile-toggle {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  max-width: 85%;
  height: 100vh;
  background-color: var(--color-white);
  z-index: 2000;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.3s ease;
  overflow-y: auto;
}

.mobile-drawer.open {
  right: 0;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(11, 31, 58, 0.5);
  backdrop-filter: blur(2px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.drawer-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--color-navy);
  cursor: pointer;
}

.drawer-menu {
  list-style: none;
  margin-top: 24px;
}

.drawer-link {
  display: block;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-navy);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.drawer-sub-menu {
  list-style: none;
  padding-left: 16px;
  margin: 6px 0 12px;
}

.drawer-sub-menu a {
  display: block;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  padding: 6px 0;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 620px;
  max-height: 680px;
  height: 650px;
  display: flex;
  align-items: center;
  background-color: var(--color-navy-dark);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  color: var(--color-white);
  padding: 0;
  overflow: hidden;
}

@media (max-width: 991px) {
  .hero-section {
    min-height: auto;
    max-height: none;
    height: auto;
    padding: 70px 0 60px;
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 21, 39, 0.94) 0%, rgba(11, 31, 58, 0.84) 40%, rgba(11, 31, 58, 0.40) 65%, rgba(11, 31, 58, 0.05) 85%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}

@media (max-width: 768px) {
  .hero-overlay {
    background: linear-gradient(180deg, rgba(7, 21, 39, 0.96) 0%, rgba(11, 31, 58, 0.90) 100%);
  }
}

.hero-content-wrapper {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.hero-text-block {
  max-width: 680px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #70C5FF;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(38px, 3.8vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-white);
  letter-spacing: -0.5px;
  margin-bottom: 18px;
  max-width: 650px;
}

.hero-title .highlight {
  color: var(--color-accent);
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  line-height: 1.6;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 0;
}

.hero-actions .btn {
  height: 50px;
  padding: 0 28px;
  font-size: 0.98rem;
}

.hero-actions .btn:hover {
  transform: translateY(-2px);
}

/* Handwritten script text on hero */
.hero-handwritten {
  display: none;
  color: var(--color-white);
  font-family: var(--font-script);
  font-size: clamp(2.4rem, 2.8vw, 3.2rem);
  line-height: 1.15;
  text-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
  transform: rotate(-3deg);
  opacity: 0.90;
  text-align: right;
  pointer-events: none;
  user-select: none;
  flex-shrink: 0;
  margin-left: 20px;
}

@media (min-width: 1200px) {
  .hero-handwritten {
    display: block;
  }
}

@media (max-width: 1199px) {
  .hero-handwritten {
    display: none !important;
  }
}

/* Hero Advantage Strip */
.hero-advantages {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  margin-top: 45px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

@media (max-width: 768px) {
  .hero-advantages {
    gap: 20px;
    margin-top: 32px;
  }
}

.advantage-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.advantage-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #70C5FF;
}

.advantage-texts {
  display: flex;
  flex-direction: column;
}

.advantage-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-white);
}

.advantage-sub {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ==========================================================================
   SERVICES CARDS (4 Cards Grid - Standalone White Section)
   ========================================================================== */
.services-section {
  position: relative;
  background-color: var(--color-white);
  padding-top: 50px;
  padding-bottom: 20px;
  margin-top: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.service-card {
  background: #FFFFFF;
  border-radius: 16px;
  border: 1px solid #E6EAF0;
  box-shadow: 0 4px 18px rgba(11, 31, 58, 0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 345px;
  text-decoration: none;
  position: relative;
  outline: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.service-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 30px rgba(11, 31, 58, 0.10);
  border-color: #087AC1;
}

.service-card-img-wrap {
  width: 100%;
  height: 220px;
  overflow: hidden;
  border-radius: 16px 16px 0 0;
  background-color: #E2E8F0;
  flex-shrink: 0;
}

.service-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.service-card-body {
  height: 125px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background-color: #FFFFFF;
  box-sizing: border-box;
}

.service-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background-color: #F0F6FD;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-card-text {
  flex-grow: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-card-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: #0B1F3A;
  line-height: 1.25;
  margin-bottom: 4px;
  letter-spacing: -0.3px;
}

.service-card-desc {
  font-size: 0.90rem;
  line-height: 1.35;
  color: #667085;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.service-card-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: #FFFFFF;
  border: 1px solid #E4E7EC;
  color: #0B1F3A;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.25s ease;
}

.service-card:hover .service-card-arrow {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: translateX(3px);
}

@media (max-width: 640px) {
  .service-card {
    height: auto;
  }
  .service-card-img-wrap {
    height: 200px;
  }
  .service-card-body {
    height: auto;
    min-height: 105px;
    padding: 16px;
  }
}

/* ==========================================================================
   ABOUT SECTION (Hakkımızda)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr 1.35fr;
    gap: 48px;
  }
}

.about-img-box {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background-color: var(--color-white);
}

.about-img-box img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.about-content-box {
  display: flex;
  flex-direction: column;
}

.about-header-text {
  margin-bottom: 28px;
}

.about-feature-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

@media (min-width: 576px) {
  .about-feature-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-mini-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.feature-mini-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.feature-mini-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-mini-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-navy);
  margin-bottom: 2px;
}

.feature-mini-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   PROJECTS SECTION (Projelerimiz)
   ========================================================================== */
.projects-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.projects-gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 576px) {
  .projects-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .projects-gallery-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.project-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 220px;
  background-color: #E2E8F0;
  box-shadow: var(--shadow-card);
  text-decoration: none;
  display: block;
}

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

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

.project-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 31, 58, 0) 40%, rgba(11, 31, 58, 0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.project-item-cat {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #70C5FF;
  letter-spacing: 0.8px;
}

.project-item-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
}

/* ==========================================================================
   HOW WE WORK (Nasıl Çalışıyoruz?)
   ========================================================================== */
.steps-wrapper {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 40px;
}

@media (min-width: 768px) {
  .steps-wrapper {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  
  .steps-wrapper::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 12%;
    right: 12%;
    height: 2px;
    background-color: var(--color-border);
    z-index: 1;
  }
}

.step-card {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 12px;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 12px rgba(8, 122, 193, 0.35);
  border: 4px solid var(--color-bg-light);
}

.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   TESTIMONIALS & BIG CTA SECTION
   ========================================================================== */
.reviews-cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 992px) {
  .reviews-cta-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* Testimonial Box */
.review-box-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-text-wrap {
  position: relative;
  margin-bottom: 24px;
}

.review-quote-mark {
  color: var(--color-accent);
  opacity: 0.25;
  margin-bottom: 8px;
}

.review-comment {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
  font-style: italic;
}

.review-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--color-border-light);
}

.review-author {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-navy);
}

.review-stars {
  color: #F59E0B;
  display: flex;
  gap: 2px;
  margin-top: 4px;
}

.review-arrows {
  display: flex;
  gap: 8px;
}

.review-arrow-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background-color: var(--color-white);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.review-arrow-btn:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* Big Navy CTA Card */
.big-cta-card {
  background: linear-gradient(135deg, var(--color-navy) 0%, #102B4E 100%);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-hero);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.big-cta-card::after {
  content: '';
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 180px;
  height: 180px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.05)' stroke-width='1.5'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
  pointer-events: none;
}

.big-cta-title {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-white);
  margin-bottom: 12px;
}

.big-cta-desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 28px;
  max-width: 440px;
}

.big-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 2;
}

.big-cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1rem;
  padding: 10px 16px;
}

.big-cta-phone:hover {
  color: #70C5FF;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
  padding-bottom: 32px;
}

.footer-top-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border-light);
}

.footer-info-items {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px;
}

.footer-info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--color-text);
}

.footer-info-item svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer-social-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--color-bg-light);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.footer-tagline {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
}

.footer-nav-links a:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   MOBILE FLOATING BOTTOM BAR
   ========================================================================== */
.mobile-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  z-index: 999;
}

@media (min-width: 992px) {
  .mobile-bottom-bar {
    display: none;
  }
}

.mobile-bar-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  text-decoration: none;
}

.mobile-bar-whatsapp {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
}

.mobile-bar-phone {
  background: linear-gradient(135deg, #087AC1 0%, #0B1F3A 100%);
}

/* ==========================================================================
   MODAL / POPUP
   ========================================================================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(11, 31, 58, 0.65);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 520px;
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 50px -12px rgba(11, 31, 58, 0.25);
  overflow: hidden;
  animation: modalIn 0.3s ease-out forwards;
}

@keyframes modalIn {
  from {
    transform: translateY(20px) scale(0.96);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.modal-header {
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-navy);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 24px 28px 28px;
}

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

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: var(--color-bg-light);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-white);
  box-shadow: 0 0 0 3px rgba(8, 122, 193, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 90px;
}

.form-feedback {
  padding: 12px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  font-size: 0.9rem;
  display: none;
}

.form-feedback.success {
  display: block;
  background-color: #DEF7EC;
  color: #03543F;
  border: 1px solid #BCF0DA;
}

.form-feedback.error {
  display: block;
  background-color: #FDE8E8;
  color: #9B1C1C;
  border: 1px solid #F8B4B4;
}

/* ==========================================================================
   PAGE HERO & INNER PAGES (Hakkımızda, Hizmetler, Projeler, İletişim)
   ========================================================================== */
.inner-hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, #123766 100%);
  padding: 60px 0 64px;
  color: var(--color-white);
  text-align: center;
  position: relative;
}

.inner-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  list-style: none;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb-list a {
  color: #70C5FF;
}

/* Service Detail Layout */
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 992px) {
  .service-detail-grid {
    grid-template-columns: 2.2fr 1fr;
  }
}

.service-main-content {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
}

.service-main-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
}

.service-features-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 28px 0;
}

@media (min-width: 768px) {
  .service-features-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-navy);
}

.service-feature-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.service-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.sidebar-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-service-links {
  list-style: none;
}

.sidebar-service-links li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-text);
  margin-bottom: 6px;
}

.sidebar-service-links li a:hover,
.sidebar-service-links li a.active {
  background-color: var(--color-accent-light);
  color: var(--color-primary);
}

/* Contact Page Layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 992px) {
  .contact-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.contact-info-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

@media (min-width: 576px) {
  .contact-info-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.contact-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-card-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.contact-card-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
}

.contact-map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  height: 320px;
}

.contact-map-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   DEDICATED MOBILE & TABLET RESPONSIVE RULES (768px, 430px, 390px, 375px)
   ========================================================================== */
@media (max-width: 768px) {
  .site-header {
    height: 76px;
  }

  .header-container {
    height: 76px;
  }

  .logo-wrapper img {
    height: 40px;
  }

  .hero-section {
    min-height: auto;
    max-height: none;
    height: auto;
    padding: 50px 0 45px;
  }

  .hero-title {
    font-size: clamp(28px, 7vw, 36px);
    line-height: 1.2;
    margin-bottom: 14px;
  }

  .hero-desc {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 24px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-actions .btn {
    width: 100%;
    height: 48px;
  }

  .hero-advantages {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 32px;
    padding-top: 20px;
    width: 100%;
  }

  .services-section {
    padding-top: 45px;
    padding-bottom: 45px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .service-card-img-wrap {
    height: 200px;
  }

  .section-title {
    font-size: 1.65rem;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (min-width: 480px) and (max-width: 768px) {
  .hero-advantages {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 430px) {
  .hero-section {
    padding: 40px 0 35px;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .advantage-title {
    font-size: 0.85rem;
  }

  .advantage-sub {
    font-size: 0.74rem;
  }

  .footer-top-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .footer-info-items {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}