/* ============================================================
   FAY ELEKTRİK AYDINLATMA — style.css
   Premium Dark Industrial Theme
   ============================================================ */

/* --- Google Fonts (Moved to index.html links for performance) --- */

/* --- CSS Custom Properties --- */
:root {
  --color-bg-primary:     #000000;
  --color-bg-secondary:   #0B0C10;
  --color-bg-card:        #1F2833;
  --color-bg-card-hover:  #263040;
  --color-text-primary:   #FFFFFF;
  --color-text-secondary: #C5C6C7;
  --color-accent:         #D32F2F;
  --color-accent-dark:    #B71C1C;
  --color-accent-light:   #EF5350;
  --color-accent-glow:    rgba(211, 47, 47, 0.35);
  --color-accent-glow-sm: rgba(211, 47, 47, 0.18);
  --color-border:         rgba(255, 255, 255, 0.06);
  --color-border-accent:  rgba(211, 47, 47, 0.4);

  --font-heading: 'Oswald', sans-serif;
  --font-body:    'Inter', sans-serif;

  --shadow-card:  0 4px 24px rgba(0, 0, 0, 0.6);
  --shadow-glow:  0 0 24px var(--color-accent-glow), 0 4px 24px rgba(0,0,0,0.5);
  --shadow-glow-lg: 0 0 48px var(--color-accent-glow), 0 8px 32px rgba(0,0,0,0.7);

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

  --transition-fast: 0.2s ease;
  --transition-med:  0.35s ease;
  --transition-slow: 0.6s ease;

  --header-height: 72px;
  --section-pad: clamp(64px, 8vw, 112px);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 3px; }

::selection { background: var(--color-accent); color: #fff; }

/* ============================================================
   ACCESSIBILITY (SKIP LINK)
   ============================================================ */
#skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 6px 6px;
  font-family: var(--font-body);
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s;
}

#skip-link:focus {
  top: 0;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: 56px;
}

.title-underline {
  display: block;
  width: 64px;
  height: 3px;
  background: var(--color-accent);
  margin-top: 12px;
  margin-bottom: 20px;
  border-radius: 2px;
}

.title-underline.centered {
  margin-left: auto;
  margin-right: auto;
}

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

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
}

.section-pad {
  padding: var(--section-pad) 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* ============================================================
   FADE IN ANIMATION (IntersectionObserver)
   ============================================================ */
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-up:nth-child(1) { transition-delay: 0.0s; }
.fade-in-up:nth-child(2) { transition-delay: 0.1s; }
.fade-in-up:nth-child(3) { transition-delay: 0.2s; }
.fade-in-up:nth-child(4) { transition-delay: 0.3s; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition-med);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

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

.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.1rem;
}

.btn svg { flex-shrink: 0; }

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-med), box-shadow var(--transition-med);
}

#site-header.scrolled {
  background: rgba(11, 12, 16, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.5);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  user-select: none;
}

.nav-logo .logo-main {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-primary);
  text-transform: uppercase;
}

.nav-logo .logo-main span {
  color: var(--color-accent);
}

.nav-logo .logo-sub {
  font-family: var(--font-body);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-top: 1px;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
  border-radius: 1px;
}

.nav-links a:hover { color: var(--color-text-primary); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-links a.active {
  color: var(--color-text-primary);
}

.nav-links a.active::after {
  transform: scaleX(1);
}

/* Nav Phone Button */
.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all var(--transition-med);
  box-shadow: 0 2px 12px var(--color-accent-glow);
  white-space: nowrap;
}

.nav-phone:hover {
  background: var(--color-accent-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 1px;
  transition: all var(--transition-med);
  transform-origin: center;
}

.hamburger:hover { border-color: var(--color-accent); }

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 12, 16, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transform: translateX(100%);
  transition: transform var(--transition-med);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav a {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 16px 40px;
  width: 100%;
  text-align: center;
  transition: all var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav a:hover { color: var(--color-accent); }

.mobile-nav .nav-phone-mobile {
  margin-top: 24px;
  font-size: 1.2rem;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

/* Industrial Circuit Board Background */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, #000000 0%, #0B0C10 40%, #1a0a0a 100%);
  overflow: hidden;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 70% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 70% 50%, black 30%, transparent 80%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 20% 50%, rgba(211, 47, 47, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(211, 47, 47, 0.07) 0%, transparent 60%);
}

/* Animated Electricity Lines */
.hero-sparks {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.spark-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  height: 1px;
  opacity: 0;
  animation: sparkMove 4s infinite;
}

.spark-line:nth-child(1) { top: 25%; width: 300px; animation-delay: 0s; animation-duration: 3.5s; }
.spark-line:nth-child(2) { top: 50%; width: 200px; animation-delay: 1.2s; animation-duration: 4.5s; }
.spark-line:nth-child(3) { top: 70%; width: 250px; animation-delay: 2.4s; animation-duration: 3s; }

@keyframes sparkMove {
  0%   { left: -300px; opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.6; }
  100% { left: 110%; opacity: 0; }
}

/* Large decorative circle */
.hero-circle {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 700px;
  height: 700px;
  border-radius: 50%;
  border: 1px solid rgba(211, 47, 47, 0.1);
  pointer-events: none;
}

.hero-circle::before {
  content: '';
  position: absolute;
  inset: 60px;
  border-radius: 50%;
  border: 1px solid rgba(211, 47, 47, 0.08);
}

.hero-circle::after {
  content: '';
  position: absolute;
  inset: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(211, 47, 47, 0.04), transparent);
}

/* Hero Content */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: var(--header-height);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
  padding: 8px 16px;
  border: 1px solid var(--color-border-accent);
  border-radius: 100px;
  background: rgba(211, 47, 47, 0.06);
}

.hero-eyebrow span {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.08;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 28px;
}

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

.hero-subtitle {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* ============================================================
   KURUMSAL (ABOUT) SECTION
   ============================================================ */
#kurumsal {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

/* Decorative visual panel (replaces photo) */
.about-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.about-visual-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Background Energy Wave Pulse */
.about-visual-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(211, 47, 47, 0.24) 0%, transparent 70%);
  animation: energyWave 3.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes energyWave {
  0%, 100% { opacity: 0.35; transform: scale(0.8); }
  50% { opacity: 0.95; transform: scale(1.25); }
}

/* Animated circuit art */
.circuit-art {
  position: relative;
  width: 280px;
  height: 280px;
}

.circuit-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid;
  animation: rotateSlow 12s linear infinite;
  transition: opacity var(--transition-med);
}

.circuit-ring:nth-child(1) {
  inset: 0;
  border-color: rgba(211, 47, 47, 0.35);
  animation-direction: normal;
}

.circuit-ring:nth-child(2) {
  inset: 30px;
  border-color: rgba(211, 47, 47, 0.25);
  border-style: dashed;
  animation-direction: reverse;
  animation-duration: 8s;
}

.circuit-ring:nth-child(3) {
  inset: 60px;
  border-color: rgba(211, 47, 47, 0.2);
  animation-duration: 16s;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.circuit-center {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circuit-icon {
  width: 80px;
  height: 80px;
  color: var(--color-accent);
  filter: drop-shadow(0 0 16px var(--color-accent-glow));
  animation: iconPulse 2.2s ease-in-out infinite;
}

@keyframes iconPulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 16px var(--color-accent-glow)); }
  50% { transform: scale(1.1); filter: drop-shadow(0 0 32px rgba(211,47,47,0.6)); }
}

/* Floating stat badges on the visual */
.about-badge {
  position: absolute;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-card);
}

.about-badge:nth-child(2) { top: 20px; right: -20px; }
.about-badge:nth-child(3) { bottom: 30px; left: -20px; }

.badge-icon {
  width: 36px;
  height: 36px;
  background: rgba(211, 47, 47, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.badge-info .badge-num {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
}

.badge-info .badge-text {
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* About Text */
.about-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-text p {
  color: var(--color-text-secondary);
  line-height: 1.85;
  font-size: 1rem;
  margin-bottom: 20px;
}

.about-text p:last-of-type { margin-bottom: 32px; }

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.feature-item .check {
  width: 20px;
  height: 20px;
  background: rgba(211, 47, 47, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

/* ============================================================
   HİZMETLER (SERVICES) SECTION
   ============================================================ */
#hizmetler {
  background: var(--color-bg-primary);
  position: relative;
  overflow: hidden;
}

#hizmetler::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(211, 47, 47, 0.05), transparent 70%);
  pointer-events: none;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-med);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-med);
}

.service-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-6px);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle 200px at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(211, 47, 47, 0.05),
    transparent
  );
  pointer-events: none;
  border-radius: inherit;
}

.service-icon {
  width: 64px;
  height: 64px;
  background: rgba(211, 47, 47, 0.08);
  border: 1px solid rgba(211, 47, 47, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  transition: all var(--transition-med);
}

.service-card:hover .service-icon {
  background: rgba(211, 47, 47, 0.15);
  box-shadow: 0 0 20px var(--color-accent-glow-sm);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.service-card p {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  flex: 1;
}

.service-card .card-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(211, 47, 47, 0.07);
  border: 1px solid rgba(211, 47, 47, 0.15);
  padding: 4px 10px;
  border-radius: 4px;
  align-self: flex-start;
}

/* ============================================================
   PROJELER (PROJECTS) SECTION
   ============================================================ */
#projeler {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

/* Filter Buttons */
.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  margin-top: -20px;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 2px 12px var(--color-accent-glow-sm);
}

/* Project Cards */
.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-med);
}

.project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-med);
}

.project-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.project-card:hover::after { opacity: 1; }

.project-cat {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(211, 47, 47, 0.08);
  border: 1px solid rgba(211, 47, 47, 0.15);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: 14px;
}

.project-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.project-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.project-meta-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

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

/* ============================================================
   GOOGLE REVIEWS SECTION
   ============================================================ */
#yorumlar {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

#yorumlar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(211,47,47,0.04), transparent);
  pointer-events: none;
}

.review-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  padding: 56px 64px;
  text-align: center;
  position: relative;
  box-shadow: 0 0 80px rgba(211, 47, 47, 0.08), var(--shadow-card);
}

.review-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stars-row {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.star-icon {
  color: #FFB800;
  filter: drop-shadow(0 0 6px rgba(255, 184, 0, 0.6));
  animation: starGlow 2s ease-in-out infinite alternate;
}

.star-icon:nth-child(2) { animation-delay: 0.1s; }
.star-icon:nth-child(3) { animation-delay: 0.2s; }
.star-icon:nth-child(4) { animation-delay: 0.3s; }
.star-icon:nth-child(5) { animation-delay: 0.4s; }

@keyframes starGlow {
  from { filter: drop-shadow(0 0 4px rgba(255, 184, 0, 0.4)); }
  to   { filter: drop-shadow(0 0 10px rgba(255, 184, 0, 0.8)); }
}

.google-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  letter-spacing: 0.05em;
}

.review-headline {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  line-height: 1.25;
}

.review-headline .accent { color: var(--color-accent); }

.review-sub {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
  line-height: 1.6;
}

/* ============================================================
   İLETİŞİM (CONTACT) SECTION
   ============================================================ */
#iletisim {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}

.contact-heading {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.contact-lead {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 40px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon-box {
  width: 48px;
  height: 48px;
  background: rgba(211, 47, 47, 0.08);
  border: 1px solid rgba(211, 47, 47, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.contact-item:hover .contact-icon-box {
  background: rgba(211, 47, 47, 0.15);
  box-shadow: 0 0 16px var(--color-accent-glow-sm);
}

.contact-item-info .contact-label {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item-info a,
.contact-item-info p {
  font-size: 1rem;
  color: var(--color-text-primary);
  line-height: 1.5;
  transition: color var(--transition-fast);
}

.contact-item-info a:hover { color: var(--color-accent); }

/* Contact Right Column */
.contact-right h3 {
  font-size: 1.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.hours-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}

.hours-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.hours-item .day { color: var(--color-text-secondary); }
.hours-item .time { color: var(--color-text-primary); font-weight: 500; }
.hours-item .time.accent { color: var(--color-accent); }

.quick-nav h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  color: var(--color-text-secondary);
}

.quick-nav-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-nav-links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

.quick-nav-links a::before {
  content: '→';
  color: var(--color-accent);
  font-size: 0.85rem;
}

.quick-nav-links a:hover { color: var(--color-accent); }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-copy strong {
  color: var(--color-accent);
}

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

.footer-social {
  display: flex;
  gap: 8px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  box-shadow: 0 2px 10px var(--color-accent-glow-sm);
}

/* ============================================================
   STICKY WHATSAPP BUTTON
   ============================================================ */
.whatsapp-sticky {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 990;
  display: flex;
  align-items: center;
  gap: 12px;
  background: #25D366;
  color: #fff;
  padding: 14px 22px;
  border-radius: 100px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4), 0 8px 32px rgba(0,0,0,0.4);
  transition: all var(--transition-med);
  animation: waPulse 3s ease-in-out infinite;
}

.whatsapp-sticky:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.6), 0 12px 40px rgba(0,0,0,0.4);
  animation: none;
}

.whatsapp-sticky .wa-text {
  display: block;
  max-width: 200px;
  line-height: 1.2;
  font-size: 0.8rem;
}

@keyframes waPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4), 0 8px 32px rgba(0,0,0,0.4); }
  50% { box-shadow: 0 4px 28px rgba(37, 211, 102, 0.65), 0 8px 32px rgba(0,0,0,0.4); }
}

/* ============================================================
   DIVIDER
   ============================================================ */
.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  border: none;
  margin: 0;
}

/* ============================================================
   INTERACTIVE CHOICE MODAL
   ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-med);
}

.modal.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  z-index: 2;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 92%;
  max-width: 500px;
  box-shadow: var(--shadow-glow-lg);
  transform: translateY(30px);
  transition: transform var(--transition-med);
}

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

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 300;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.modal-step {
  display: none;
}

.modal-step.active {
  display: block;
  animation: modalStepFadeIn 0.3s ease forwards;
}

@keyframes modalStepFadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

/* Choice Cards (Step 1) */
.choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.choice-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-med);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  user-select: none;
}

.choice-card:hover {
  border-color: var(--color-border-accent);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.choice-card:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.choice-icon {
  width: 52px;
  height: 52px;
  background: rgba(211, 47, 47, 0.08);
  border: 1px solid rgba(211, 47, 47, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  transition: all var(--transition-med);
}

.choice-card:hover .choice-icon {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 0 16px var(--color-accent-glow);
}

.choice-card h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-primary);
}

/* Action Buttons (Step 2) */
.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition-med);
  box-shadow: 0 2px 10px rgba(37, 211, 102, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-whatsapp:hover {
  background: #20BA56;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45);
  transform: translateY(-2px);
}

/* Backup Info Section */
.backup-info {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.backup-info h5 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
  text-align: center;
}

.backup-details {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  padding: 16px;
  border-radius: var(--radius-md);
  text-align: center;
}

.backup-details a {
  transition: color var(--transition-fast);
}

.backup-details a:hover {
  color: var(--color-accent-light) !important;
}

/* Back Button */
.btn-back {
  margin-top: 24px;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  border-bottom: 1px dashed var(--color-text-secondary);
  padding-bottom: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
  border: none;
}

.btn-back:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
}

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

  .nav-links, .nav-phone { display: none; }
  .hamburger { display: flex; }

  .grid-2 { grid-template-columns: 1fr; gap: 32px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }

  .hero-stats { gap: 24px; flex-wrap: wrap; }

  .about-badge:nth-child(2) { right: -10px; top: 10px; }
  .about-badge:nth-child(3) { left: -10px; bottom: 20px; }

  .review-card { padding: 36px 28px; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-right  { order: -1; }

  .whatsapp-sticky { bottom: 20px; right: 16px; padding: 12px 18px; }
  .whatsapp-sticky .wa-text { display: none; }

  .hero-cta-group { flex-direction: column; align-items: flex-start; }

  .btn-lg { padding: 14px 24px; font-size: 0.95rem; }

  .filter-group { margin-top: 0; }
}

@media (max-width: 480px) {
  .btn-lg { padding: 15px 24px; font-size: 0.95rem; }
  .review-card { padding: 28px 20px; }
  .hero-stats { flex-direction: column; gap: 16px; }
}