/* ============================================================
   GÖKDEMIR ASFALT – style.css
   Vanilla CSS | Modern CSS Grid & Flexbox | CSS Variables
   ============================================================ */

/* ─── 1. CSS VARIABLES / DESIGN TOKENS ─────────────────── */
:root {
  /* Palette */
  --clr-bg:          #111111;
  --clr-bg-alt:      #181818;
  --clr-bg-card:     #1c1c1c;
  --clr-surface:     #f5f3ef;
  --clr-surface-alt: #ededea;
  --clr-gold:        #F3AF00;
  --clr-gold-dark:   #c98f00;
  --clr-gold-light:  #f9df8b;
  --clr-white:       #ffffff;
  --clr-text:        #ffffff;
  --clr-text-muted:  rgba(255,255,255,0.45);
  --clr-text-dark:   #111111;
  --clr-text-dark-muted: rgba(17,17,17,0.45);
  --clr-border:      rgba(255,255,255,0.08);
  --clr-border-dark: rgba(17,17,17,0.10);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --container-max: 1400px;
  --container-px:  clamp(1.25rem, 5vw, 5rem);

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 180ms;
  --dur-med:  320ms;
  --dur-slow: 520ms;

  /* Header height */
  --header-h: 80px;
}

/* ─── 2. RESET & BASE ───────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

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

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

ul, ol {
  list-style: none;
}

address {
  font-style: normal;
}

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

/* ─── 3. LAYOUT UTILITIES ───────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* ─── 4. TYPOGRAPHY ─────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--clr-gold);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--clr-text);
}

.title-muted {
  color: var(--clr-text-muted);
}

.section-title--dark {
  color: var(--clr-text-dark);
}

.title-muted-dark {
  color: var(--clr-text-dark-muted);
}

/* ─── 5. BUTTONS ─────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--clr-gold);
  color: var(--clr-text-dark);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 0;
  transition: background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.btn-primary:hover {
  background: var(--clr-gold-light);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  background: transparent;
  color: var(--clr-white);
  font-size: 0.875rem;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.3);
  transition: border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

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

.btn-dark {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 1rem 1.75rem;
  background: var(--clr-bg);
  color: var(--clr-white);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--dur-fast) var(--ease-out);
}

.btn-dark:hover {
  background: #222;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--clr-gold);
  color: var(--clr-text-dark);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.btn-cta:hover {
  background: var(--clr-gold-light);
  transform: translateY(-1px);
}

.btn-cta svg {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn-cta:hover svg {
  transform: translate(2px, -2px);
}

/* ─── 6. HEADER ─────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--dur-med) var(--ease-out),
              box-shadow var(--dur-med) var(--ease-out);
}

.site-header.scrolled {
  background: rgba(17, 17, 17, 0.97);
  box-shadow: 0 4px 40px rgba(0,0,0,0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 2rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-icon {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
  padding-left: 0.5rem;
  border-left: 2px solid var(--clr-gold);
}

.logo-brand {
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--clr-white);
}

.logo-tagline {
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--clr-text-muted);
  margin-top: 0.2rem;
  text-transform: uppercase;
}

/* Desktop Nav */
.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  position: relative;
  padding-bottom: 0.2rem;
  transition: color var(--dur-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--clr-gold);
  transition: width var(--dur-med) var(--ease-out);
}

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

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

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  flex-shrink: 0;
}

.hamburger-line {
  display: block;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform var(--dur-med) var(--ease-out),
              opacity var(--dur-med) var(--ease-out);
}

.hamburger.is-open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  top: var(--header-h);
  background: var(--clr-bg);
  z-index: 999;
  display: flex;
  align-items: flex-start;
  padding: 3rem var(--container-px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity var(--dur-med) var(--ease-out),
              transform var(--dur-med) var(--ease-out);
}

.mobile-nav-overlay.is-open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.mobile-nav {
  width: 100%;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--clr-border);
}

.mobile-nav-link {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-white);
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--clr-border);
  transition: color var(--dur-fast), padding-left var(--dur-fast) var(--ease-out);
}

.mobile-nav-link:hover {
  color: var(--clr-gold);
  padding-left: 0.5rem;
}

.mobile-cta {
  margin-top: 2.5rem;
}

/* ─── 7. HERO SECTION ───────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-bottom: 6rem;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(17,28,20,0.82) 0%,
    rgba(20,38,24,0.55) 50%,
    rgba(17,17,17,0.80) 100%
  );
  z-index: 1;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.12);
  animation: heroZoomOut 2.5s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes heroZoomOut {
  from {
    transform: scale(1.15);
  }
  to {
    transform: scale(1.0);
  }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(3rem, 7.5vw, 7rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 1.75rem;
  max-width: 16ch;
}

.hero-title-muted {
  color: var(--clr-text-muted);
}

.hero-desc {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: rgba(255,255,255,0.7);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  right: var(--container-px);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--clr-gold));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50%       { transform: scaleY(0.5); opacity: 0.4; }
}

/* ─── 8. STATS STRIP ────────────────────────────────────── */
.stats-strip {
  background: var(--clr-gold);
  padding: 2.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
}

.stat-number {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 900;
  color: var(--clr-text-dark);
  letter-spacing: -0.04em;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(17,17,17,0.65);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(17,17,17,0.2);
}

/* ─── 9. ABOUT / KURUMSAL ──────────────────────────────── */
.about {
  background: var(--clr-white);
  padding: 7rem 0 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem 6rem;
  align-items: flex-start;
  padding-bottom: 5rem;
}

.about-text-col {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}

.about-text-col .section-label {
  color: var(--clr-gold-dark);
}

.about-text-col .section-title {
  color: var(--clr-text-dark);
}

.about-body {
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(17,17,17,0.7);
  margin-bottom: 1.5rem;
}

/* Value Cards */
.value-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 3rem;
  border-top: 1px solid var(--clr-border-dark);
}

.value-card {
  padding: 2rem 0;
  border-bottom: 1px solid var(--clr-border-dark);
  transition: background var(--dur-fast);
}

.value-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--clr-gold-dark);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.75rem;
}

.value-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-text-dark);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.value-desc {
  font-size: 0.9rem;
  color: rgba(17,17,17,0.6);
  line-height: 1.7;
}

/* Full-width image */
.about-image-wrap {
  width: 100%;
  overflow: hidden;
  line-height: 0;
  position: relative;
}

.about-image-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.10);
  pointer-events: none;
  transition: background var(--dur-slow) var(--ease-out);
}

.about-full-img {
  width: 100%;
  height: clamp(300px, 40vw, 550px);
  object-fit: cover;
  display: block;
  filter: grayscale(0.1);
  transition: filter var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

.about-full-img:hover {
  filter: grayscale(0);
  transform: scale(1.01);
}

/* ─── 10. SERVICES / FALİYET ALANLARI ─────────────────── */
.services {
  background: var(--clr-surface);
  padding: 7rem 0;
}

.services-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 5rem;
  align-items: flex-end;
  margin-bottom: 4rem;
}

.services-header-left .section-label--dark {
  color: var(--clr-gold-dark);
}

.services-sub {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(17,17,17,0.6);
  max-width: 36ch;
  align-self: flex-end;
  padding-bottom: 0.5rem;
}

.services-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--clr-border-dark);
}

.service-card {
  border-right: 1px solid var(--clr-border-dark);
  transition: transform var(--dur-med) var(--ease-out);
}

.service-card:last-child {
  border-right: none;
}

.service-card:hover {
  transform: translateY(-4px);
}

.service-card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

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

.service-card-num {
  position: absolute;
  top: 1rem;
  left: 1.25rem;
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(255,255,255,0.85);
  letter-spacing: -0.04em;
  line-height: 1;
  z-index: 1;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.service-card-tag {
  position: absolute;
  bottom: 1rem;
  left: 1.25rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-white);
  background: rgba(17,17,17,0.8);
  padding: 0.375rem 0.75rem;
  backdrop-filter: blur(4px);
  z-index: 1;
}

.service-card-body {
  background: var(--clr-white);
  padding: 1.75rem 1.5rem;
}

.service-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text-dark);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.service-card-desc {
  font-size: 0.9rem;
  color: rgba(17,17,17,0.6);
  line-height: 1.7;
}

/* ─── 11. PROJECTS ──────────────────────────────────────── */
.projects {
  background: var(--clr-bg);
  padding: 7rem 0;
}

.projects-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 4rem;
}

.projects-header-left .section-label {
  color: var(--clr-gold);
}

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

/* First card spans 2 columns */
.project-card:nth-child(1) {
  grid-column: span 2;
}

.project-card {
  background: var(--clr-bg-card);
  overflow: hidden;
  cursor: default;
  transition: background var(--dur-fast);
}

.project-card:hover {
  background: #202020;
}

.project-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.project-card:nth-child(1) .project-img-wrap {
  aspect-ratio: 21/9;
}

.project-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
  filter: grayscale(0.15);
}

.project-card:hover .project-img-wrap img {
  transform: scale(1.04);
  filter: grayscale(0);
}

.project-status {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--clr-white);
  background: rgba(17,17,17,0.75);
  padding: 0.375rem 0.75rem;
  backdrop-filter: blur(8px);
}

.project-card-body {
  padding: 1.5rem 1.75rem 2rem;
}

.project-location {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

/* ─── 12. CONTACT ───────────────────────────────────────── */
.contact {
  background: var(--clr-white);
  padding: 7rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem 5rem;
  align-items: flex-start;
}

.contact-info .section-label {
  color: var(--clr-gold-dark);
}

.contact-city {
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 900;
  color: var(--clr-text-dark);
  letter-spacing: -0.05em;
  line-height: 1;
  margin-bottom: 2rem;
}

.contact-address {
  font-size: 1rem;
  color: rgba(17,17,17,0.55);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-phone {
  display: block;
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--clr-text-dark);
  letter-spacing: -0.03em;
  margin-bottom: 0.625rem;
  transition: color var(--dur-fast);
}

.contact-phone:hover {
  color: var(--clr-gold-dark);
}

.contact-email {
  display: block;
  font-size: 1rem;
  color: var(--clr-gold-dark);
  margin-bottom: 2rem;
  transition: opacity var(--dur-fast);
}

.contact-email:hover {
  opacity: 0.7;
}

.contact-map-btn {
  margin-bottom: 1.75rem;
}

.contact-note {
  font-size: 0.875rem;
  color: rgba(17,17,17,0.45);
  line-height: 1.7;
  max-width: 38ch;
}

.contact-map {
  height: 520px;
  overflow: hidden;
  border: 1px solid var(--clr-border-dark);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ─── 13. PRE-FOOTER ─────────────────────────────────────── */
.prefooter {
  background: var(--clr-surface);
  padding: 6rem 0;
  border-top: 1px solid var(--clr-border-dark);
}

.prefooter-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
}

.prefooter-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--clr-gold-dark);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.prefooter-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--clr-text-dark);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  max-width: 22ch;
}

.prefooter-desc {
  font-size: 1rem;
  color: rgba(17,17,17,0.55);
  line-height: 1.75;
  max-width: 54ch;
}

/* ─── 14. FOOTER ─────────────────────────────────────────── */
.site-footer {
  background: var(--clr-bg);
}

.footer-body {
  padding: 5rem 0 4rem;
  border-top: 1px solid var(--clr-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 3rem 2.5rem;
  align-items: flex-start;
}

/* Footer Brand */
.logo--footer .logo-brand {
  font-size: 0.8rem;
}

.footer-divider {
  width: 80px;
  height: 1px;
  background: var(--clr-border);
  margin: 1.25rem 0;
}

.footer-slogan {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

.footer-col-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.footer-link {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--dur-fast);
}

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

.footer-address {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.footer-phone {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  transition: color var(--dur-fast);
}

.footer-phone:hover {
  color: var(--clr-gold);
}

.footer-email {
  display: block;
  font-size: 0.875rem;
  color: var(--clr-gold);
  margin-bottom: 1rem;
  transition: opacity var(--dur-fast);
}

.footer-email:hover {
  opacity: 0.7;
}

.footer-map-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  padding-bottom: 0.1rem;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.footer-map-link:hover {
  color: var(--clr-gold);
  border-color: var(--clr-gold);
}

/* Footer Bottom */
.footer-bottom {
  padding: 1.5rem 0;
  border-top: 1px solid var(--clr-border);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-copy,
.footer-legal {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

/* ─── 15. SCROLL REVEAL ANIMATIONS ─────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ─── 16. RESPONSIVE ────────────────────────────────────── */

/* --- Tablet (≤ 1100px) --- */
@media (max-width: 1100px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-text-col {
    position: static;
  }

  .services-header {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .footer-brand {
    grid-column: span 2;
  }
}

/* --- Tablet & Mobile (≤ 900px) --- */
@media (max-width: 900px) {
  /* Nav & Header CTA */
  .main-nav { display: none !important; }
  #header-cta { display: none !important; }
  .hamburger { 
    display: flex !important;
    z-index: 1002;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem 0;
  }

  .stat-divider {
    display: none;
  }

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

  .service-card {
    border-right: none;
    border-bottom: 1px solid var(--clr-border-dark);
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card:nth-child(1) {
    grid-column: span 1;
  }

  .project-card:nth-child(1) .project-img-wrap {
    aspect-ratio: 16/9;
  }

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

  .contact-map {
    height: 380px;
  }
}

/* --- Mobile (≤ 640px) --- */
@media (max-width: 640px) {
  :root {
    --header-h: 68px;
  }

  .hero {
    padding-bottom: 5rem;
    align-items: flex-end;
  }

  .hero-title {
    letter-spacing: -0.03em;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .hero-scroll {
    display: none;
  }

  .hero-cta-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

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

  .about {
    padding: 5rem 0 0;
  }

  .about-grid {
    gap: 2.5rem;
    padding-bottom: 3.5rem;
  }

  .services {
    padding: 5rem 0;
  }

  .projects {
    padding: 5rem 0;
  }

  .contact {
    padding: 5rem 0;
  }

  .prefooter {
    padding: 4rem 0;
  }

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

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

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.375rem;
  }

  .contact-map {
    height: 300px;
  }

  .projects-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
}

/* ─── 17. ACCESSIBILITY ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 3px;
}

/* ─── 15. PAGE INNER BANNERS ────────────────────────────── */
.page-banner {
  background: linear-gradient(
    160deg,
    #181c19 0%,
    #161917 100%
  );
  padding: calc(var(--header-h) + 4rem) 0 4rem;
  border-bottom: 1px solid var(--clr-border);
}

.page-banner-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  color: var(--clr-white);
  letter-spacing: -0.04em;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.page-banner-sub {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  max-width: 50ch;
  line-height: 1.6;
}

.margin-top-lg {
  margin-top: 4rem;
}

/* ─── 18. PROJECTS PAGE & DETAIL PAGE (FETIH YOL STYLE) ─────── */
.projects-hero-section {
  background: #ffffff;
  color: var(--clr-text-dark);
  padding-top: calc(var(--header-h) + 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.projects-hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem 5rem;
  align-items: flex-end;
  margin-bottom: 4rem;
}

.projects-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--clr-gold-dark);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.projects-hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--clr-text-dark);
}

.hero-title-dark {
  color: rgba(17,17,17,0.45);
}

.projects-hero-desc {
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(17,17,17,0.65);
  max-width: 44ch;
}

/* Control Bar (Filters + Counter) */
.projects-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid rgba(17,17,17,0.1);
}

.projects-filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1.125rem;
  background: #f4f4f3;
  color: #333333;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 4px;
  transition: all var(--dur-fast) var(--ease-out);
}

.filter-btn:hover {
  background: #e8e8e6;
}

.filter-btn.active {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

.filter-count {
  font-size: 0.75rem;
  opacity: 0.6;
  font-weight: 500;
}

.filter-btn.active .filter-count {
  opacity: 0.7;
}

.projects-stat-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.projects-total-num {
  font-size: clamp(3.5rem, 5vw, 5rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--clr-text-dark);
}

.projects-stat-text {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(17,17,17,0.5);
  line-height: 1.25;
}

.projects-info-strip {
  padding-top: 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(17,17,17,0.5);
}

/* Projects Cards Grid without image (Text-focused, clean link card) */
.projects-gallery-section {
  background: #fcfcfb;
  padding: 4rem 0 7rem;
}

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

.project-list-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 4px 20px rgba(0,0,0,0.03);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
  text-decoration: none;
  overflow: hidden;
}

.project-list-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.08);
  border-color: var(--clr-gold-dark);
}

.project-card-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: #161819;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transition: transform var(--dur-slow) var(--ease-out);
}

.project-list-card:hover .project-card-image-wrap img {
  transform: scale(1.05);
}

.card-status-overlay {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
  background: rgba(17,17,17,0.8);
  padding: 0.35rem 0.75rem;
  backdrop-filter: blur(4px);
  z-index: 2;
}

.project-card-content {
  padding: 1.75rem 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
}

.project-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-location-tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-gold-dark);
  text-transform: uppercase;
}

.card-arrow-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(17,17,17,0.3);
  transition: color var(--dur-fast), transform var(--dur-fast);
}

.project-list-card:hover .card-arrow-icon {
  color: var(--clr-gold-dark);
  transform: translateX(4px);
}

.card-project-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-text-dark);
  margin-bottom: 0.875rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.card-project-desc {
  font-size: 0.9rem;
  color: rgba(17,17,17,0.65);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.card-footer-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(17,17,17,0.08);
  font-size: 0.75rem;
  font-weight: 600;
}

.card-status-badge {
  color: rgba(17,17,17,0.5);
}

.card-category-tag {
  color: #111111;
  background: #f0f0ee;
  padding: 0.25rem 0.625rem;
  border-radius: 2px;
}

/* ─── PROJE DETAY SAYFASI (PROJECT DETAIL) STYLES ─────────── */
.project-detail-hero {
  background: #111111;
  color: #ffffff;
  padding-top: calc(var(--header-h) + 4rem);
  padding-bottom: 5rem;
}

.project-detail-breadcrumb {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.project-detail-breadcrumb a {
  color: rgba(255,255,255,0.45);
  transition: color var(--dur-fast);
}

.project-detail-breadcrumb a:hover {
  color: var(--clr-gold);
}

.project-detail-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--clr-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.project-detail-title {
  font-size: clamp(2.75rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: #ffffff;
  margin-bottom: 1.5rem;
  max-width: 22ch;
}

.project-detail-sub {
  font-size: 1.15rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.7);
  max-width: 60ch;
}

.project-detail-content {
  background: #ffffff;
  color: var(--clr-text-dark);
  padding: 3.5rem 0 7rem;
}

.back-link-wrap {
  margin-bottom: 2.5rem;
}

.back-to-projects-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(17,17,17,0.6);
  transition: color var(--dur-fast);
}

.back-to-projects-btn:hover {
  color: var(--clr-gold-dark);
}

/* Detail Showcase Slider */
.project-showcase-slider {
  margin-bottom: 4rem;
}

.showcase-main-img-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  max-height: 640px;
  background: #111111;
  overflow: hidden;
  position: relative;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.showcase-main-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transition: opacity 0.3s ease, transform 0.5s ease;
}

.detail-slider-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(17,17,17,0.1);
  margin-bottom: 1.5rem;
}

.detail-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(17,17,17,0.2);
  background: #ffffff;
  color: #111111;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--dur-fast);
}

.detail-nav-btn:hover {
  border-color: #111111;
  background: #111111;
  color: #ffffff;
}

.detail-counter-text {
  font-size: 0.95rem;
  font-weight: 700;
  color: #111111;
  letter-spacing: 0.1em;
}

.detail-thumbnails-strip {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  overflow-x: auto;
  padding: 0.5rem 0 1rem;
  scrollbar-width: thin;
}

.thumbnail-item {
  width: 110px;
  height: 72px;
  flex-shrink: 0;
  border: 2px solid transparent;
  border-radius: 4px;
  overflow: hidden;
  padding: 0;
  background: #111;
  opacity: 0.55;
  cursor: pointer;
  transition: all var(--dur-fast);
}

.thumbnail-item.active,
.thumbnail-item:hover {
  opacity: 1;
  border-color: var(--clr-gold-dark);
  transform: translateY(-2px);
}

.thumbnail-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

/* Detail Metadata Grid */
.project-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(17,17,17,0.1);
}

.meta-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--clr-gold-dark);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.meta-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-text-dark);
  letter-spacing: -0.02em;
}

/* Detail Project Video Section */
.project-video-section {
  margin-top: 4.5rem;
  padding-top: 3.5rem;
  border-top: 1px solid rgba(17, 17, 17, 0.1);
}

.project-video-header {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto 1.5rem auto;
}

.project-video-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--clr-text-dark);
  letter-spacing: -0.02em;
  margin: 0.35rem 0 0 0;
}

.project-video-wrapper {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  background: #000000;
  aspect-ratio: 16 / 9;
}

.project-video-wrapper video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

@media (max-width: 992px) {
  .projects-hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .projects-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .project-meta-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .projects-card-grid {
    grid-template-columns: 1fr;
  }
  .projects-control-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ─── 19. ANASAYFA HUB OVERVIEW SECTIONS (KURUMSAL / FAALİYETLER / PROJELER) ─── */
.hub-summary-section {
  padding: 6.5rem 0;
  position: relative;
}

.hub-summary--dark {
  background: var(--clr-bg);
  color: var(--clr-text);
}

.hub-summary--light {
  background: #f7f6f2;
  color: var(--clr-text-dark);
}

/* Hub Section 1: Kurumsal Özet Grid */
.hub-summary-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 4rem 5rem;
  align-items: center;
}

.hub-summary-text {
  max-width: 580px;
}

.hub-summary-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  margin: 1.5rem 0 2.25rem;
}

.hub-summary-image {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border-radius: 4px;
  background: #181a18;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.hub-summary-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hub Links */
.hub-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--clr-gold);
  border-bottom: 2px solid rgba(243, 175, 0, 0.4);
  padding-bottom: 0.35rem;
  transition: all var(--dur-fast);
}

.hub-link-btn:hover {
  color: #ffffff;
  border-bottom-color: var(--clr-gold);
  gap: 0.85rem;
}

.hub-link-btn--dark {
  color: #111111;
  border-bottom-color: rgba(17, 17, 17, 0.3);
}

.hub-link-btn--dark:hover {
  color: var(--clr-gold-dark);
  border-bottom-color: var(--clr-gold-dark);
}

/* Hub Header (Row for Services & Projects) */
.hub-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3.5rem;
  gap: 2rem;
  flex-wrap: wrap;
}

/* Hub Section 2: Services Mini Grid */
.hub-services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.hub-service-mini-card {
  background: #ffffff;
  padding: 2.75rem 2.25rem;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out), border-color var(--dur-med);
}

.hub-service-mini-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.07);
  border-color: var(--clr-gold-dark);
}

.mini-card-num {
  display: block;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--clr-gold-dark);
  margin-bottom: 1.25rem;
}

.mini-card-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-text-dark);
  margin-bottom: 0.85rem;
  letter-spacing: -0.01em;
}

.mini-card-desc {
  font-size: 0.95rem;
  color: rgba(17, 17, 17, 0.65);
  line-height: 1.7;
}

/* Hub Section 3: Projects 3'lü Grid */
.hub-projects-teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.hub-projects-teaser-grid .project-card {
  grid-column: span 1 !important;
  background: #18191a;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--dur-med), border-color var(--dur-med);
}

.hub-projects-teaser-grid .project-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-gold);
}

.hub-projects-teaser-grid .project-img-wrap {
  aspect-ratio: 16/10 !important;
  width: 100%;
}

@media (max-width: 992px) {
  .hub-summary-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hub-services-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .hub-projects-teaser-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}