/* ═══════════════════════════════════════════════════
   AZY Elektrik & Mühendislik — Ana Stil
   Tema: Premium cool gray (igloo.inc tarzı)
   ═══════════════════════════════════════════════════ */

:root {
  /* Cool gray arka planlar */
  --bg-base: hsl(220, 8%, 86%);
  --bg-2:    hsl(220, 7%, 81%);
  --bg-3:    hsl(220, 6%, 76%);
  --bg-card: hsl(220, 10%, 93%);

  /* Lacivert + Altın vurgular */
  --copper:      #C9A84C;
  --copper-lt:   #E0C070;
  --copper-glow: rgba(201,168,76,0.14);
  --navy:        #1a3a6c;
  --navy-lt:     #2952a3;

  /* Yazı renkleri */
  --ink-1: hsl(220, 18%, 14%);
  --ink-2: hsl(220, 10%, 38%);
  --ink-3: hsl(220,  6%, 54%);

  /* Kenarlık & cam */
  --border:  rgba(30, 40, 60, 0.12);
  --glass:   rgba(255, 255, 255, 0.62);
  --glass-b: rgba(255, 255, 255, 0.85);

  --ease:   cubic-bezier(0.4, 0, 0.2, 1);
  --spring: cubic-bezier(0.2, 0.8, 0.2, 1);
  --radius: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg-base);
  color: var(--ink-1);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: 'Poppins', sans-serif;
  line-height: 1.2;
  color: var(--ink-1);
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.copper-text { color: var(--copper); }
.mt-1 { margin-top: 1rem; }

/* ─── BUTONLAR ───────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: 50px;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), filter 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-copper {
  background: var(--navy);
  color: #fff;
}
.btn-copper:hover {
  box-shadow: 0 8px 24px rgba(26,58,108,0.45);
  filter: brightness(1.12);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-1);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.btn-full { width: 100%; justify-content: center; }

/* ─── EYEBROW ────────────────────────────────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 0.75rem;
}

/* ─── PRELOADER ──────────────────────────────────── */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }

.pre-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(199,123,74,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(199,123,74,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: preGrid 18s linear infinite;
}
@keyframes preGrid {
  from { transform: translateY(0); }
  to   { transform: translateY(40px); }
}

.pre-beam {
  position: absolute;
  width: 1px;
  height: 100%;
  top: 0;
  background: linear-gradient(to bottom, transparent, var(--copper), transparent);
  opacity: 0;
  animation: preBeam 3.2s ease-in-out infinite;
}
.pre-beam--a { left: 30%; }
.pre-beam--b { left: 70%; animation-duration: 4s; animation-delay: 0.6s; }
@keyframes preBeam {
  0%,100% { opacity: 0; transform: translateY(-100%); }
  50%      { opacity: 0.3; transform: translateY(100%); }
}

.pre-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: prePulse 2.2s ease-in-out infinite;
}
@keyframes prePulse {
  0%,100% { transform: scale(1); }
  50%      { transform: scale(1.04); }
}

.pre-ring { transform: rotate(-90deg); }
.pre-ring-track { fill: none; stroke: rgba(30,40,60,0.1); stroke-width: 2.5; }
.pre-ring-fill  {
  fill: none; stroke: var(--copper); stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 213.6;
  stroke-dashoffset: 213.6;
  animation: preRing 1.4s ease-out forwards;
}
@keyframes preRing { to { stroke-dashoffset: 0; } }

/* Logo in preloader */
.pre-logo-img {
  position: absolute;
  height: 44px;
  width: auto;
  mix-blend-mode: multiply;
}

.pre-logo {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}
.pre-logo-a   { font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 1.15rem; color: var(--ink-1); letter-spacing: 0.2em; }
.pre-logo-sub { font-size: 0.42rem; letter-spacing: 0.5em; color: var(--copper); margin-top: 2px; }

.pre-bar-wrap {
  width: 180px;
  height: 2px;
  background: rgba(30,40,60,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.pre-bar {
  height: 100%;
  background: var(--copper);
  border-radius: 2px;
  animation: preBar 1.4s ease-out forwards;
}
@keyframes preBar { from { width: 0; } to { width: 100%; } }

.pre-tagline {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ─── HEADER ─────────────────────────────────────── */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0.4rem 0;
  background: rgba(218, 220, 226, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}
#header.scrolled {
  background: rgba(218, 220, 226, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 1px 0 var(--border);
  padding: 0.3rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* Logo resmi */
.brand-logo {
  height: 200px;
  width: auto;
  display: block;
  mix-blend-mode: multiply;
  transition: opacity 0.2s;
}
.brand-logo:hover { opacity: 0.8; }

/* Yedek metin logo (logo.png yoksa) */
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
  flex-shrink: 0;
}
.brand-name { font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 1.15rem; letter-spacing: 0.25em; color: var(--ink-1); }
.brand-sub  { font-size: 0.48rem; letter-spacing: 0.52em; color: var(--copper); margin-top: 2px; }

.nav-links {
  display: flex;
  gap: 2rem;
  margin-left: auto;
}
.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.nav-links a:hover  { color: var(--copper); }
.nav-links a.active { color: var(--copper); }

.nav-cta { flex-shrink: 0; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  margin-left: auto;
}
.nav-burger span { display: block; width: 20px; height: 1.5px; background: var(--ink-1); }

/* Mobil menü */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-close {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  background: none; border: none;
  color: var(--ink-2); font-size: 1.4rem; cursor: pointer;
}
.mobile-link {
  font-family: 'Poppins', sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--ink-1);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.mobile-link:hover { color: var(--copper); }

/* ─── HERO (Three.js — Full-Bleed) ──────────────── */
.hero {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(180deg,
    var(--bg-base) 0%,
    var(--bg-2) 60%,
    var(--bg-3) 100%);
}

/* Three.js canvas */
#stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* Atmosferik örtü — ışık efekti */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%,
      hsla(220, 10%, 60%, 0.4) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 50% 0%,
      hsla(220, 8%, 96%, 0.5) 0%, transparent 70%);
  pointer-events: none;
  z-index: 2;
}

/* Film grain */
.hero::after {
  content: '';
  position: absolute;
  inset: -50%;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.35;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 3;
  animation: grain 8s steps(8) infinite;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-3%, -2%); }
  20% { transform: translate(3%, 2%); }
  30% { transform: translate(-2%, 3%); }
  40% { transform: translate(2%, -3%); }
  50% { transform: translate(-3%, 1%); }
  60% { transform: translate(3%, -1%); }
  70% { transform: translate(-1%, 2%); }
  80% { transform: translate(1%, -2%); }
  90% { transform: translate(-2%, 1%); }
}

/* Vinyet */
.vignette {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  background: radial-gradient(ellipse 90% 70% at 50% 50%,
    transparent 40%, hsla(35, 15%, 40%, 0.12) 100%);
}

/* Köşe işaretleri */
.corner-mark {
  position: absolute;
  z-index: 11;
  width: 24px;
  height: 24px;
  border: 1px solid var(--ink-3);
  opacity: 0;
  animation: fadeIn 0.8s var(--ease) 1.8s forwards;
  pointer-events: none;
}
.corner-mark.tl { top: 1.2rem; left: 1.2rem; border-right: none; border-bottom: none; }
.corner-mark.tr { top: 1.2rem; right: 1.2rem; border-left: none; border-bottom: none; }
.corner-mark.bl { bottom: 1.2rem; left: 1.2rem; border-right: none; border-top: none; }
.corner-mark.br { bottom: 1.2rem; right: 1.2rem; border-left: none; border-top: none; }
@keyframes fadeIn { to { opacity: 1; } }

/* Hero içeriği */
.hero-body {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  padding: 8rem 5vw 5rem;
  pointer-events: none;
}
.hero-body > * { pointer-events: auto; }

/* Sol metin */
.hero-left {
  flex: 1;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.label-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--copper);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(199,123,74,0.5); }
  50%      { box-shadow: 0 0 0 6px rgba(199,123,74,0); }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 0.05em;
  font-size: clamp(3rem, 6vw, 5.8rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ink-1);
}
.hero-line { overflow: hidden; display: block; }
.hero-line span {
  display: block;
  transform: translateY(110%);
  animation: lineUp 0.85s var(--ease) forwards;
}
.hero-line:nth-child(1) span { animation-delay: 0.1s; }
.hero-line:nth-child(2) span { animation-delay: 0.22s; }
.hero-line:nth-child(3) span { animation-delay: 0.34s; }
@keyframes lineUp { to { transform: translateY(0); } }
.hero-title em { font-style: normal; color: var(--copper); }

.hero-sub {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--ink-2);
  max-width: 460px;
  line-height: 1.75;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.55s forwards;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.72s forwards;
}

/* Sağ: Glassmorphism stats card */
.hero-card {
  flex-shrink: 0;
  width: 285px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(199,123,74,0.28);
  border-radius: 20px;
  padding: 1.75rem;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.9),
    0 20px 60px rgba(30,40,60,0.15);
  opacity: 0;
  animation: cardIn 1s var(--spring) 0.85s forwards;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hcard-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(199,123,74,0.18);
  position: relative;
}
.hcard-dot {
  width: 6px; height: 6px;
  background: var(--copper);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.hcard-badge {
  position: absolute;
  right: 0; top: -0.5rem;
  width: 54px; height: 54px;
  display: flex; align-items: center; justify-content: center;
}
.hcard-badge-svg {
  position: absolute;
  inset: 0;
  animation: rotateBadge 14s linear infinite;
}
@keyframes rotateBadge { to { transform: rotate(360deg); } }
.hcard-badge-icon {
  width: 24px; height: 24px;
  background: var(--copper);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 0.65rem;
  z-index: 1;
  box-shadow: 0 4px 12px rgba(199,123,74,0.45);
}

.hcard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem 1rem;
}
.hcard-stat { text-align: center; }
.hcard-n {
  font-family: 'Poppins', sans-serif;
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--ink-1);
  line-height: 1;
}
.hcard-sym {
  font-family: 'Poppins', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--copper);
  vertical-align: top;
  line-height: 1.4;
}
.hcard-l {
  display: block;
  font-size: 0.6rem;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* Kaydır göstergesi */
.hero-scroll-ind {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 11;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 1.6s forwards;
  pointer-events: none;
}
.hsi-line {
  width: 1px;
  height: 52px;
  background: linear-gradient(to bottom, var(--copper), transparent);
  transform-origin: top center;
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); opacity: 0; }
  40%  { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1) translateY(12px); opacity: 0; }
}
.hero-scroll-ind span {
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  color: var(--copper);
  opacity: 0.7;
}

/* Hero iç loader */
.hero-loader {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: var(--bg-base);
  transition: opacity 0.8s var(--ease);
}
.hero-loader.hidden {
  opacity: 0;
  pointer-events: none;
}
.hero-loader-content { text-align: center; }
.hero-loader-logo {
  height: 60px;
  width: auto;
  margin: 0 auto 1.5rem;
  mix-blend-mode: multiply;
}
.hero-loader-bar {
  width: 200px;
  height: 1px;
  background: rgba(30,40,60,0.15);
  position: relative;
  overflow: hidden;
  margin: 0 auto;
}
.hero-loader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--copper);
  transform: translateX(-100%);
  animation: loaderFill 2s var(--ease) infinite;
}
@keyframes loaderFill {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.hero-loader-text {
  margin-top: 1rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--ink-3);
}

/* ─── MARQUEE ─────────────────────────────────────── */
.marquee-strip {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 0;
  overflow: hidden;
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 2rem;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-track span {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
  transition: color 0.2s;
}
.marquee-track span:hover { color: var(--copper); }
.msep { color: var(--copper) !important; font-size: 0.6rem !important; }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─── SECTION ORTAK ──────────────────────────────── */
.section { padding: 6rem 0; }
.section-alt { background: var(--bg-2); }

.section-head {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3.5rem;
}
.section-head h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.section-head p { color: var(--ink-2); font-size: 0.95rem; }

/* ─── HİZMETLER ──────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.3s ease, transform 0.3s var(--spring), box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--copper-glow);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.service-card:hover {
  border-color: var(--copper);
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(30,40,60,0.12);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 48px; height: 48px;
  background: var(--copper-glow);
  border: 1px solid rgba(199,123,74,0.25);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--copper);
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  position: relative;
  transition: background 0.3s ease;
}
.service-card:hover .service-icon { background: var(--copper); color: #fff; }

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  position: relative;
}
.service-card p {
  font-size: 0.85rem;
  color: var(--ink-2);
  line-height: 1.65;
  position: relative;
}

/* ─── HAKKIMIZDA ─────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-text h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
}
.about-text p {
  color: var(--ink-2);
  margin-bottom: 1rem;
  line-height: 1.75;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.about-stat {
  background: var(--bg-card);
  padding: 2rem;
  text-align: center;
  transition: background 0.3s ease;
}
.about-stat:hover { background: var(--bg-base); }

.big-num {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--copper);
  line-height: 1;
}
.big-plus { font-size: 1.4rem; font-weight: 700; color: var(--copper); }
.big-label {
  display: block;
  font-size: 0.72rem;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-top: 6px;
}

/* ─── PROJELER ───────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--ink-2);
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--copper);
  border-color: var(--copper);
  color: #fff;
}

.projects-list {
  display: flex;
  flex-direction: column;
}

.project-row {
  display: grid;
  grid-template-columns: 64px 260px 1fr 44px;
  gap: 2.5rem;
  align-items: center;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.25s ease;
}
.project-row:first-child { border-top: 1px solid var(--border); }
.project-row.hidden { display: none; }
.project-row:hover { background: rgba(199, 123, 74, 0.04); }

.prow-num {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--copper);
  opacity: 0.3;
  text-align: right;
  line-height: 1;
}

.prow-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius);
}
.prow-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.project-row:hover .prow-img img { transform: scale(1.05); }

.prow-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
}
.prow-tag-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.2rem;
}
.prow-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink-1);
  margin: 0;
  line-height: 1.25;
}
.prow-detail {
  font-size: 0.9rem;
  color: var(--ink-2);
  margin: 0;
}
.prow-client {
  font-size: 0.8rem;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
}
.prow-client i { color: var(--copper); font-size: 0.7rem; }

.prow-arrow {
  width: 42px; height: 42px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-3);
  font-size: 0.75rem;
  transition: all 0.3s var(--spring);
  flex-shrink: 0;
}
.project-row:hover .prow-arrow {
  background: var(--copper);
  border-color: var(--copper);
  color: #fff;
  transform: rotate(-45deg);
}

.project-tag {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--copper);
  color: #fff;
  padding: 3px 10px;
  border-radius: 50px;
}

/* ─── İLETİŞİM ───────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 1rem;
}
.contact-info > p { color: var(--ink-2); margin-bottom: 2rem; }

.contact-items { display: flex; flex-direction: column; gap: 0.75rem; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s var(--spring);
}
.contact-item:hover { border-color: var(--copper); transform: translateX(4px); }
.contact-item--whatsapp:hover { border-color: #25D366; }
.contact-item--whatsapp .contact-icon { background: rgba(37,211,102,0.1); color: #25D366; border-color: rgba(37,211,102,0.22); }

.contact-icon {
  width: 42px; height: 42px;
  background: var(--copper-glow);
  border: 1px solid rgba(199,123,74,0.22);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--copper);
  font-size: 1rem;
  flex-shrink: 0;
}
.contact-label { display: block; font-size: 0.68rem; color: var(--ink-3); letter-spacing: 0.06em; }
.contact-val   { display: block; font-size: 0.9rem; font-weight: 500; color: var(--ink-1); margin-top: 2px; }

/* Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.78rem; font-weight: 500; color: var(--ink-2); }

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--ink-1);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  padding: 0.7rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--copper); }

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-3); }

.form-group select option { background: var(--bg-card); color: var(--ink-1); }

.form-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--ink-3);
  margin-top: 0.75rem;
}
.form-note .fab { color: #25D366; margin-right: 4px; }

/* ─── FOOTER ─────────────────────────────────────── */
.footer { background: var(--bg-2); padding: 4rem 0 0; border-top: 1px solid var(--border); }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.footer-brand-logo {
  height: 48px;
  width: auto;
  mix-blend-mode: multiply;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--ink-2);
  margin-top: 0.75rem;
  max-width: 260px;
  line-height: 1.65;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.footer-social a {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-2);
  font-size: 0.9rem;
  transition: all 0.2s var(--spring);
}
.footer-social a:hover { background: var(--copper); border-color: var(--copper); color: #fff; transform: translateY(-3px); }

.footer-links { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-links h5 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-1);
  margin-bottom: 0.25rem;
}
.footer-links a { font-size: 0.85rem; color: var(--ink-2); transition: color 0.2s; }
.footer-links a:hover { color: var(--copper); }

.footer-contact { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-contact h5 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-1);
  margin-bottom: 0.25rem;
}
.footer-contact p { font-size: 0.85rem; color: var(--ink-2); display: flex; align-items: center; gap: 0.6rem; }
.footer-contact i { color: var(--copper); width: 16px; }

.footer-bottom { padding: 1.25rem 0; }
.footer-bottom p { font-size: 0.78rem; color: var(--ink-3); text-align: center; }

/* ─── WHATSAPP FLOAT ─────────────────────────────── */
.wa-float {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 50;
  width: 56px; height: 56px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: transform 0.3s var(--spring), box-shadow 0.3s ease;
  animation: waPulse 3s ease-in-out infinite;
}
.wa-float:hover { transform: scale(1.12); box-shadow: 0 8px 30px rgba(37,211,102,0.5); }
@keyframes waPulse {
  0%,100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
  50%      { box-shadow: 0 4px 30px rgba(37,211,102,0.65); }
}

/* ─── PROJE MODAL ────────────────────────────────── */
.project-row { cursor: pointer; }

.pmodal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.pmodal.open { opacity: 1; visibility: visible; }

.pmodal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 16, 30, 0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.pmodal-card {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border-radius: 20px;
  overflow: hidden;
  width: 100%;
  max-width: 660px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 40px 100px rgba(0,0,0,0.4);
  transform: scale(0.93) translateY(24px);
  transition: transform 0.35s var(--spring);
}
.pmodal.open .pmodal-card { transform: scale(1) translateY(0); }

.pmodal-img-wrap {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.pmodal-img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pmodal-img-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,16,30,0.65) 0%, transparent 55%);
}

.pmodal-close {
  position: absolute;
  top: 1rem; right: 1rem;
  z-index: 10;
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.92);
  border: none; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-1);
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
  transition: transform 0.2s ease, background 0.2s;
}
.pmodal-close:hover { background: #fff; transform: scale(1.1); }

.pmodal-body { padding: 1.75rem 2rem 2rem; }

.pmodal-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}
.pmodal-num {
  font-family: 'Poppins', sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--copper);
  opacity: 0.5;
}
.pmodal-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink-1);
  margin-bottom: 0.75rem;
  line-height: 1.25;
}
.pmodal-detail { font-size: 1rem; color: var(--ink-2); margin-bottom: 0.4rem; }
.pmodal-client {
  font-size: 0.85rem;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.pmodal-client i { color: var(--copper); }

@media (max-width: 640px) {
  .pmodal-body { padding: 1.25rem 1.25rem 1.75rem; }
  .pmodal-title { font-size: 1.2rem; }
}

/* ─── SCROLL REVEAL ──────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ─── RESPONSİF ──────────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .project-row   { grid-template-columns: 50px 200px 1fr 40px; gap: 1.5rem; }
  .footer-grid   { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta   { display: none; }
  .nav-burger { display: flex; }

  .brand-logo { height: 100px; }

  .hero-body  { flex-direction: column; align-items: flex-start; justify-content: flex-end; padding: 7rem 5vw 5rem; gap: 2rem; }
  .hero-title { font-size: clamp(2.5rem, 9vw, 3.5rem); }
  .hero-card  { display: none; }
  .corner-mark { width: 18px; height: 18px; }

  #hakkimizda { overflow: hidden; }
  .about-grid   { grid-template-columns: 1fr; gap: 3rem; overflow: hidden; }
  .about-stats  { max-width: 100%; }
  .big-num { font-size: 1.9rem; }

  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .form-row     { grid-template-columns: 1fr; }

  .services-grid { grid-template-columns: 1fr; }
  .project-row   { grid-template-columns: 1fr; gap: 1rem; }
  .prow-num, .prow-arrow { display: none; }
  .prow-img { aspect-ratio: 16/9; }
  .footer-grid   { grid-template-columns: 1fr; gap: 2rem; }

  .section { padding: 4rem 0; }
}