/* =============================================
   GA GRAPH ART STUDIO — GLOBAL STYLES
   ============================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colour Palette */
  --clr-cream:       #f5f2ec;
  --clr-beige:       #ede8df;
  --clr-warm-grey:   #d4cfc6;
  --clr-mid-grey:    #9e9890;
  --clr-dark:        #2b2822;
  --clr-forest:      #2d4a3e;
  --clr-forest-mid:  #3a6050;
  --clr-forest-lt:   #5a8a72;
  --clr-accent:      #c8b89a;
  --clr-white:       #ffffff;

  /* Typography */
  --font-heading:  'Cormorant Garamond', serif;
  --font-display:  'Playfair Display', serif;
  --font-body:     'Inter', sans-serif;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   2rem;
  --space-lg:   4rem;
  --space-xl:   6rem;

  /* Transitions */
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --duration:    0.35s;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-y: scroll; /* scrollbar daima görünür → menü açılınca kayma olmaz */
}

body {
  font-family: var(--font-body);
  background-color: var(--clr-cream);
  color: var(--clr-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* =============================================
   REUSABLE COMPONENTS
   ============================================= */

.section-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--clr-mid-grey);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-label::after {
  content: '';
  flex: 1;
  max-width: 60px;
  height: 1px;
  background: var(--clr-warm-grey);
}

.section-label--light { color: var(--clr-accent); }
.section-label--light::after { background: rgba(255,255,255,0.2); }

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--clr-dark);
}

.section-title--light { color: var(--clr-white); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-dark);
  transition: gap var(--duration) var(--ease);
}

.text-link:hover { gap: 0.9rem; }

.arrow { display: inline-block; transition: transform var(--duration) var(--ease); }
.text-link:hover .arrow { transform: translateX(4px); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--clr-forest);
  color: var(--clr-white);
  border-color: var(--clr-forest);
}

.btn-primary:hover {
  background: var(--clr-forest-mid);
  border-color: var(--clr-forest-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(45,74,62,0.25);
}

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

.btn-outline:hover {
  background: var(--clr-dark);
  color: var(--clr-white);
  transform: translateY(-2px);
}

.btn-full { width: 100%; }

/* =============================================
   NAVBAR
   ============================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(245,242,236,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212,207,198,0.4);
  transition: box-shadow var(--duration) var(--ease);
}

.navbar.scrolled {
  box-shadow: 0 2px 24px rgba(43,40,34,0.08);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Nav Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border: 1.5px solid var(--clr-forest);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.logo-mark::before {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid var(--clr-forest);
  opacity: 0.4;
}

.logo-ga {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-forest);
  letter-spacing: 0.05em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-graph {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--clr-dark);
}

.logo-studio {
  font-family: var(--font-body);
  font-size: 0.5rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  color: var(--clr-mid-grey);
}

/* Nav Links — desktop: yatay liste */
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.67rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-mid-grey);
  position: relative;
  transition: color var(--duration) var(--ease);
  padding-bottom: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--clr-forest);
  transition: width var(--duration) var(--ease);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  position: relative;
  z-index: 999; /* menü overlay (998) üstünde */
}

.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--clr-dark);
  transition: all var(--duration) var(--ease);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* =============================================
   HERO
   ============================================= */

.hero {
  position: relative;
  min-height: 100vh;
  background-color: var(--clr-cream);
  display: flex;
  align-items: center;
  padding-top: 70px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 50%, rgba(45,74,62,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 80% at 10% 80%, rgba(200,184,154,0.12) 0%, transparent 60%);
  pointer-events: none;
}

/* Decorative large GA letters in background */
.hero::after {
  content: 'GA';
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-heading);
  font-size: clamp(220px, 28vw, 420px);
  font-weight: 300;
  color: transparent;
  -webkit-text-stroke: 1px rgba(45,74,62,0.07);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1.1fr 0.9fr;  /* logo | metin | vazo */
  align-items: center;
  gap: 2rem;
}

/* Hero logo block */
.hero-logo-block {
  text-align: center;
  animation: fadeInLeft 0.9s var(--ease) both;
  position: relative;
}

/* Wrapper */
.hero-logo-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* GA + banner katmanı: relative konteynır */
.hero-ga-layer {
  position: relative;
  display: inline-block;
  line-height: 0;          /* alt bofluğu sıfırla */
}

.hero-ga-text {
  font-family: var(--font-heading);
  font-size: clamp(100px, 16vw, 180px);
  font-weight: 300;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--clr-dark);
  line-height: 0.82;
  letter-spacing: -0.02em;
  user-select: none;
  display: block;
}

/* Yeşil banner — GA'nın tam ortasına absolute */
.hero-brand-banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--clr-forest);
  padding: 0.55rem 0;
  width: calc(100% + 2.5rem);   /* her iki yandan hafif taşsın */
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  z-index: 2;
}

.hero-brand-text {
  font-family: var(--font-body);
  font-size: clamp(0.72rem, 1.3vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--clr-white);
  text-transform: uppercase;
  text-indent: 0.28em;
}

.hero-studio-text {
  font-family: var(--font-body);
  font-size: clamp(0.65rem, 1.2vw, 0.9rem);
  font-weight: 300;
  letter-spacing: 0.65em;
  color: var(--clr-mid-grey);
  margin-top: 0.6rem;
  text-indent: 0.65em;
}

/* Hero right */
.hero-right {
  animation: fadeInRight 0.9s var(--ease) 0.3s both;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* Orta: Tagline bölümü */
.hero-center {
  animation: fadeIn 0.9s var(--ease) 0.15s both;
}

.hero-tagline-label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--clr-mid-grey);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 400;
  font-style: italic;
  color: var(--clr-dark);
  line-height: 1.1;
  margin-bottom: 1.2rem;
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--clr-mid-grey);
  line-height: 1.8;
  max-width: 340px;
  margin-bottom: 2rem;
}

/* ―― Vazo Görseli + Işık Animasyonu ―― */
.hero-visual {
  position: relative;
}

.hero-img-wrap {
  position: relative;
  overflow: visible; /* taşan glow için */
}

/* Vazo: çerçevesiz, arka plan sayfaya kaynaşsın */
.hero-vase-img {
  width: 100%;
  max-width: clamp(220px, 28vw, 380px);
  height: auto;
  display: block;
  object-fit: contain;
  mix-blend-mode: multiply;   /* krem arka planı sayfayla kaynaştırır */
  filter: contrast(1.02) brightness(1.02);
  animation: fadeInRight 1s var(--ease) 0.2s both;
  -webkit-mask-image: radial-gradient(circle at center, black 50%, transparent 95%);
  mask-image: radial-gradient(circle at center, black 50%, transparent 95%);
}


/* ── Güneş Işığı Şeritleri ── */
.sun-ray {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 55%;
  height: 180%;
  background: linear-gradient(
    to bottom,
    rgba(255, 220, 120, 0.22) 0%,
    rgba(255, 200, 80, 0.08) 60%,
    transparent 100%
  );
  transform-origin: top right;
  border-radius: 0 0 50% 0;
  pointer-events: none;
}

.sun-ray-1 {
  transform: rotate(0deg);
  animation: sunRaySweep 4s ease-in-out infinite;
  animation-delay: 0s;
}
.sun-ray-2 {
  transform: rotate(12deg);
  animation: sunRaySweep 4s ease-in-out infinite;
  animation-delay: 0.6s;
  opacity: 0.7;
}
.sun-ray-3 {
  transform: rotate(24deg);
  animation: sunRaySweep 4s ease-in-out infinite;
  animation-delay: 1.2s;
  opacity: 0.5;
}

@keyframes sunRaySweep {
  0%   { opacity: 0;    transform: rotate(var(--r, 0deg)) translateX(8%); }
  30%  { opacity: 1; }
  60%  { opacity: 0.8; }
  100% { opacity: 0;    transform: rotate(var(--r, 0deg)) translateX(-5%); }
}

/* Her ışık için kendi rotate değişkeni */
.sun-ray-1 { --r: 0deg; }
.sun-ray-2 { --r: 12deg; }
.sun-ray-3 { --r: 24deg; }
.sun-ray-3 { --r: 24deg; }

/* ── Üst köşe parlama ── */
.sun-glow {
  position: absolute;
  top: -20%;
  right: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(
    circle,
    rgba(255, 220, 100, 0.45) 0%,
    rgba(255, 210, 80, 0.2) 40%,
    transparent 70%
  );
  border-radius: 50%;
  animation: glowPulse 3s ease-in-out infinite alternate;
  pointer-events: none;
  mix-blend-mode: screen;
}

@keyframes glowPulse {
  0%   { transform: scale(0.85) translate(5%, -5%); opacity: 0.6; }
  100% { transform: scale(1.15) translate(-2%, 2%);  opacity: 1; }
}


.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, transparent, var(--clr-mid-grey));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50% { transform: scaleY(1.3); opacity: 1; }
}

/* =============================================
   ABOUT
   ============================================= */

.about {
  padding: var(--space-xl) 0;
  background: var(--clr-white);
}

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

.about-text {
  animation: fadeIn 0.7s var(--ease) both;
}

.about-desc {
  font-size: 0.95rem;
  color: var(--clr-mid-grey);
  line-height: 1.9;
  margin: 1.5rem 0 2rem;
  max-width: 440px;
}

.about-image-wrap {
  position: relative;
}

.about-image-stack {
  position: relative;
  height: 420px;
}

.about-img-card {
  position: absolute;
  overflow: hidden;
  border-radius: 2px;
  box-shadow: 0 20px 50px rgba(43,40,34,0.12);
  transition: transform var(--duration) var(--ease);
}

.about-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

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

.about-img-card--1 {
  width: 70%;
  height: 300px;
  top: 0;
  right: 0;
}

.about-img-card--2 {
  width: 55%;
  height: 220px;
  bottom: 0;
  left: 0;
  z-index: 2;
}

.about-img-badge {
  position: absolute;
  bottom: 30px;
  right: 10px;
  background: var(--clr-forest);
  color: var(--clr-white);
  padding: 1rem 1.2rem;
  text-align: center;
  z-index: 3;
}

.badge-year {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 300;
  line-height: 1;
}

.badge-label {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 0.2rem;
  opacity: 0.8;
}

/* =============================================
   SERVICES
   ============================================= */

.services {
  padding: var(--space-xl) 0;
  background: var(--clr-cream);
}

.services-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 400;
  text-align: center;
  color: var(--clr-dark);
  margin-bottom: 3.5rem;
  line-height: 1.2;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--clr-warm-grey);
  border: 1.5px solid var(--clr-warm-grey);
}

.service-card {
  background: var(--clr-cream);
  padding: 2.5rem 2rem;
  cursor: default;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-forest);
  transition: width 0.5s var(--ease);
}

.service-card:hover::before { width: 100%; }

.service-card:hover {
  background: var(--clr-white);
}

.service-card--active {
  background: var(--clr-forest);
  color: var(--clr-white);
}

.service-card--active .service-name,
.service-card--active .service-desc,
.service-card--active .service-link { color: var(--clr-white); }

.service-card--active::before { display: none; }

.service-icon {
  margin-bottom: 1.4rem;
  color: inherit;
  opacity: 0.8;
}

.service-name {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-dark);
  margin-bottom: 0.8rem;
}

.service-desc {
  font-size: 0.85rem;
  color: var(--clr-mid-grey);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.service-link {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--duration) var(--ease);
}

.service-link:hover { gap: 0.8rem; }

/* =============================================
   PORTFOLIO
   ============================================= */

.portfolio {
  padding: var(--space-xl) 0;
  background: var(--clr-beige);
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.portfolio-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.45rem 1.2rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--clr-warm-grey);
  color: var(--clr-mid-grey);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  border-radius: 2px;
}

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

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

/* Portfolio Grid — masonry-ish */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 260px;
  gap: 1rem;
}

.portfolio-item {
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

.portfolio-item.hidden {
  display: none;
}

.portfolio-item--wide {
  grid-column: span 2;
}

.portfolio-img-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.portfolio-item:hover .portfolio-img-wrap img {
  transform: scale(1.07);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(43,40,34,0.85) 0%, rgba(43,40,34,0.2) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--duration) var(--ease);
  display: flex;
  align-items: flex-end;
}

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

.portfolio-overlay-content {
  padding: 1.5rem;
  transform: translateY(8px);
  transition: transform var(--duration) var(--ease);
}

.portfolio-item:hover .portfolio-overlay-content {
  transform: translateY(0);
}

.portfolio-category-tag {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 0.4rem;
}

.portfolio-item-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--clr-white);
  line-height: 1.2;
}

.portfolio-item-desc {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.7);
  margin-top: 0.3rem;
  line-height: 1.5;
}

/* =============================================
   CONTACT
   ============================================= */

.contact {
  padding: var(--space-xl) 0;
  background: var(--clr-forest);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(90,138,114,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 100% 0%, rgba(200,184,154,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.contact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
  align-items: start;
}

.contact-desc {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.9;
  margin: 1.5rem 0 2.5rem;
  max-width: 360px;
}

.contact-details { margin-bottom: 2.5rem; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.contact-icon {
  color: var(--clr-accent);
  flex-shrink: 0;
}

.contact-link {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.75);
  transition: color var(--duration) var(--ease);
}

.contact-link:hover { color: var(--clr-white); }

.social-links {
  display: flex;
  gap: 0.8rem;
}

.social-btn {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: all var(--duration) var(--ease);
  border-radius: 2px;
}

.social-btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--clr-white);
  border-color: rgba(255,255,255,0.4);
}

/* Contact Form */
.contact-form {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 2.5rem;
  backdrop-filter: blur(8px);
}

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

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.67rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--clr-white);
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
  outline: none;
  border-radius: 2px;
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.4)' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group select option {
  background: var(--clr-forest);
  color: var(--clr-white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.1);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* =============================================
   FOOTER
   ============================================= */

.footer {
  background: var(--clr-dark);
  padding: 4rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  margin-bottom: 1.5rem;
}

.footer-brand { grid-column: 1; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.logo-mark--sm {
  width: 32px;
  height: 32px;
}

.logo-mark--sm .logo-ga { font-size: 0.85rem; }
.logo-mark--sm { border-color: rgba(255,255,255,0.3); }
.logo-mark--sm::before { border-color: rgba(255,255,255,0.15); }
.logo-mark--sm .logo-ga { color: rgba(255,255,255,0.8); }

.footer .logo-graph { color: rgba(255,255,255,0.75); }
.footer .logo-studio { color: rgba(255,255,255,0.35); }

.footer-tagline {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
  font-style: italic;
  font-family: var(--font-heading);
}

.footer-col-title {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--duration) var(--ease);
}

.footer-links a:hover { color: var(--clr-white); }

.footer-contact-list a { font-size: 0.78rem; }

.footer-socials {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.footer-social-btn {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  transition: all var(--duration) var(--ease);
  border-radius: 2px;
}

.footer-social-btn:hover {
  background: rgba(255,255,255,0.07);
  color: var(--clr-white);
  border-color: rgba(255,255,255,0.25);
}

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.08em;
}

/* =============================================
   ANIMATIONS
   ============================================= */

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

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

/* Intersection Observer reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* =============================================
   LIGHTBOX GALLERY
   ============================================= */

/* Portfolio item hover cursor */
.portfolio-item {
  cursor: pointer;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
}

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

.lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(18, 18, 18, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox-content {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-img-wrapper {
  position: relative;
  width: 100%;
  max-width: 1200px;
  height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
}

.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  transform: scale(0.95);
  opacity: 0;
  transition: transform 0.4s var(--ease), opacity 0.4s var(--ease);
}

.lightbox-img.loaded {
  transform: scale(1);
  opacity: 1;
}

/* Kapatma Butonu */
.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  z-index: 3;
  opacity: 0.7;
  transition: opacity 0.2s, transform 0.2s;
  padding: 0.5rem;
}

.lightbox-close:hover {
  opacity: 1;
  transform: scale(1.1);
}

/* Yön Okları */
.lightbox-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 3;
  transition: all 0.3s var(--ease);
  backdrop-filter: blur(4px);
}

.lightbox-btn:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }

/* Resim Açıklama (Caption) */
.lightbox-caption {
  text-align: center;
  color: #fff;
  max-width: 600px;
}

.lightbox-category {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--clr-accent);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.lightbox-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
  margin: 0;
  letter-spacing: 0.05em;
}

/* Mobil için ayarlamalar */
@media (max-width: 768px) {
  .lightbox-content { padding: 1rem; }
  .lightbox-img-wrapper { height: 70vh; margin-bottom: 1rem; }
  .lightbox-prev, .lightbox-next { display: none; } /* Mobilde kaydırma (swipe) kullanılacak */
  .lightbox-close { top: 0.5rem; right: 0.5rem; font-size: 2rem; }
  .lightbox-title { font-size: 1.5rem; }
}

/* =============================================
   RESPONSIVE — TABLET (≤ 1024px)
   ============================================= */

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

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 240px;
  }

  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }

  .footer-brand { grid-column: 1 / -1; }
}

/* =============================================
   RESPONSIVE — MOBILE (≤ 768px)
   ============================================= */

@media (max-width: 768px) {
  :root {
    --space-xl: 4rem;
    --space-lg: 2.5rem;
  }

  /* Navbar */
  .hamburger { display: flex; }

  /* Mobil menü — tam ekran overlay */
  .nav-links {
    display: flex !important;        /* her zaman flex, visibility ile gizle */
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(245, 242, 236, 1);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.8rem;
    list-style: none;
    z-index: 998;
    padding: 0;
    margin: 0;
    /* Kapalı durum */
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateX(6px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  }

  .nav-links.open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
  }

  /* Scroll kilidi: sayfanın konumunu kaydetmeden kilitle */
  body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    top: calc(-1 * var(--scroll-y, 0px));
  }

  .nav-link {
    font-size: 1.1rem;
    letter-spacing: 0.25em;
    color: var(--clr-dark);
  }

  /* Hero */
  .hero::after { display: none; }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
    padding: 5rem var(--space-md) 3rem;
  }

  .hero-desc { max-width: 100%; margin-left: auto; margin-right: auto; }

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

  .hero-right { justify-content: center; margin-top: 2rem; }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-image-stack { height: 300px; }

  .about-img-card--1 { width: 80%; height: 220px; }
  .about-img-card--2 { width: 60%; height: 170px; }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
  }

  /* Portfolio */
  .portfolio-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 220px;
  }

  .portfolio-item--wide { grid-column: span 1; }

  .portfolio-header { flex-direction: column; align-items: flex-start; }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .form-row { grid-template-columns: 1fr; }

  .contact-form { padding: 1.8rem; }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand { grid-column: 1 / -1; }
}

/* =============================================
   RESPONSIVE — SMALL MOBILE (≤ 480px)
   ============================================= */

@media (max-width: 480px) {
  .hero-buttons { flex-direction: column; align-items: center; }

  .btn { width: 100%; max-width: 280px; }

  .portfolio-filters {
    gap: 0.4rem;
  }

  .filter-btn { padding: 0.4rem 0.9rem; font-size: 0.62rem; }

  .footer-grid { grid-template-columns: 1fr; }
}