:root {
  --navy: #06213a;
  --navy2: #031827;
  --gold: #d7a94d;
  --gold2: #f0c76e;
  --cream: #f5f1e9;
  --ink: #0a1d31;
  --muted: #66717c;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.48;
}

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

/* Navigasyon Barı */
.nav {
  height: 72px;
  background: rgba(4, 28, 48, 0.97);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5.8%;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}

.logo {
  font-family: Georgia, serif;
  font-size: 27px;
  letter-spacing: 0.5px;
}

.logo b {
  font-size: 42px;
  color: var(--gold);
  font-weight: 400;
}

.logo small {
  font-family: Arial;
  display: block;
  margin: -9px 0 0 50px;
  font-size: 7px;
  letter-spacing: 5px;
  color: #d6dde2;
}

.navlinks {
  display: flex;
  gap: 27px;
  align-items: center;
  font-size: 12px;
  overflow: visible;
}

.navlinks a {
  padding: 27px 0 22px;
}

.navlinks a:hover {
  color: var(--gold2);
}

.navlinks .cta {
  padding: 13px 25px;
  background: linear-gradient(90deg, var(--gold2), var(--gold));
  color: #10202c;
  font-weight: 800;
}

.navitem {
  position: relative;
  display: flex;
  align-items: center;
}

.navitem > a {
  display: block;
}

.submenu {
  position: absolute;
  top: 63px;
  left: -18px;
  min-width: 220px;
  background: #06213a;
  border-top: 2px solid var(--gold);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: 0.18s ease;
  z-index: 100;
  padding: 6px 0;
}

.navitem:hover .submenu,
.navitem:focus-within .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu a {
  display: block !important;
  padding: 13px 18px !important;
  color: #fff !important;
  font-size: 11px;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.submenu a:hover {
  background: rgba(215, 169, 77, 0.12);
  color: var(--gold2) !important;
}

/* Mobil Menü Butonu (Hamburger) */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 101;
}

.menu-toggle span {
  width: 100%;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  transition: all 0.25s ease-in-out;
}

/* Hero Bölümü */
.hero {
  min-height: 600px;
  position: relative;
  color: #fff;
  display: flex;
  align-items: center;
  padding: 70px 7%;
  overflow: hidden;
  background: linear-gradient(90deg, rgba(3, 25, 43, 0.97) 0%, rgba(3, 25, 43, 0.86) 39%, rgba(3, 25, 43, 0.30) 72%), url('images/design-reference.png') center 10%/cover no-repeat;
}

.hero:after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 110px;
  background: linear-gradient(transparent, rgba(1, 19, 33, 0.7));
}

.heroin {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.eyebrow {
  font-size: 10px;
  letter-spacing: 4px;
  font-weight: 800;
  color: #e8edf1;
}

.hero h1,
.display {
  font-family: Georgia, serif;
  font-weight: 400;
}

.hero h1 {
  font-size: 55px;
  line-height: 1.02;
  margin: 16px 0;
}

.hero h1 em {
  font-style: normal;
  color: var(--gold);
}

.slogan {
  font-family: Georgia, serif;
  font-style: italic;
  font-size: 17px;
  border-left: 2px solid var(--gold);
  padding: 6px 0 6px 17px;
  margin: 20px 0;
  max-width: 530px;
}

.hero p {
  font-size: 14px;
  max-width: 570px;
  color: #edf1f4;
}

.btn {
  display: inline-block;
  padding: 14px 24px;
  background: linear-gradient(90deg, var(--gold2), var(--gold));
  color: #14202b;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  border: 1px solid var(--gold);
  margin: 8px 8px 0 0;
}

.btn.ghost {
  background: transparent;
  color: #fff;
}

/* Servicebar */
.servicebar {
  background: var(--navy);
  color: #fff;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 0 5.5%;
}

.servicebar > div {
  padding: 25px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  min-height: 120px;
}

.ico {
  font-size: 28px;
  color: var(--gold);
}

.servicebar h3 {
  font-family: Georgia, serif;
  font-size: 17px;
  font-weight: 400;
  margin: 7px 0 3px;
}

.servicebar p {
  font-size: 11px;
  color: #ccd5dc;
  margin: 0;
}

/* Bölümler */
section {
  padding: 75px 7%;
}

.cream {
  background: var(--cream);
}

.dark {
  background: var(--navy);
  color: #fff;
}

.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 55px;
  align-items: center;
}

.display {
  font-size: 39px;
  line-height: 1.08;
  margin: 9px 0 17px;
}

.kicker {
  font-size: 10px;
  letter-spacing: 3px;
  font-weight: 800;
  color: #52606d;
}

.goldline {
  width: 40px;
  height: 2px;
  background: var(--gold);
  margin: 9px 0 14px;
}

.two p {
  font-size: 14px;
}

.visual {
  min-height: 350px;
  background: url('images/consult.svg') center/cover;
  border: 1px solid #ddd;
}

.sectors {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.sector {
  background: #fff;
  border: 1px solid #e2ddd3;
}

.sector .pic {
  height: 80px;
  background: linear-gradient(135deg, #735f42, #d3b176);
}

.sector:nth-child(2) .pic { background: linear-gradient(135deg, #2f2015, #b77a35); }
.sector:nth-child(3) .pic { background: linear-gradient(135deg, #475765, #c99249); }
.sector:nth-child(4) .pic { background: linear-gradient(135deg, #806543, #15171a); }
.sector:nth-child(5) .pic { background: linear-gradient(135deg, #233544, #9aabb8); }
.sector:nth-child(6) .pic { background: linear-gradient(135deg, #9c7040, #e2c59c); }

.sector h4 {
  font-family: Georgia, serif;
  font-weight: 400;
  font-size: 13px;
  padding: 10px;
  margin: 0;
}

/* Pagehero */
.pagehero {
  min-height: 300px;
  background: linear-gradient(90deg, rgba(3, 25, 43, 0.97), rgba(3, 25, 43, 0.65)), url('images/design-reference.png') center/cover;
  color: #fff;
  padding: 70px 7%;
  display: flex;
  align-items: end;
}

.pagehero .display {
  font-size: 48px;
  max-width: 700px;
}

.pagehero p {
  max-width: 680px;
  color: #dce4e9;
}

/* Kartlar */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  border: 1px solid #e5e0d7;
  background: #fff;
}

.card .cardpic {
  height: 130px;
  background: linear-gradient(135deg, #1a2c3d, #d3a453);
}

.card .body {
  padding: 20px;
}

.card h3 {
  font-family: Georgia, serif;
  font-size: 19px;
  font-weight: 400;
  margin: 0 0 7px;
}

.card p {
  font-size: 12px;
  color: #58636c;
}

.more {
  font-size: 10px;
  font-weight: 800;
  color: #a87a25;
  letter-spacing: 1px;
}

/* Process */
.process {
  background: var(--navy);
  color: #fff;
  padding: 45px 7%;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.step {
  position: relative;
  padding-top: 35px;
}

.step span {
  position: absolute;
  top: 0;
  left: 0;
  background: var(--gold);
  color: #12202c;
  border-radius: 50%;
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 11px;
}

.step h4 {
  font-family: Georgia, serif;
  font-weight: 400;
  margin: 5px 0;
}

.step p {
  font-size: 11px;
  color: #cdd7de;
}

/* Property */
.property {
  min-height: 330px;
  background: linear-gradient(90deg, rgba(8, 35, 55, 0.88), rgba(8, 35, 55, 0.20)), url('images/property.svg') center/cover;
  color: #fff;
  display: flex;
  align-items: center;
}

.property .copy {
  max-width: 650px;
}

.checks {
  columns: 2;
  column-gap: 35px;
  padding-left: 18px;
}

.checks li {
  font-size: 13px;
  margin-bottom: 9px;
  break-inside: avoid;
}

.notice {
  background: #f4efe5;
  border-left: 4px solid var(--gold);
  padding: 18px 22px;
  margin: 25px 0;
  font-size: 12px;
}

/* Değerler & Sahip */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.value {
  padding: 25px;
  border-right: 1px solid #ddd;
}

.value h3 {
  font-family: Georgia, serif;
  font-weight: 400;
}

.owner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

.certbox {
  background: var(--navy);
  color: #fff;
  padding: 25px;
}

.certbox h3 {
  font-family: Georgia, serif;
  font-weight: 400;
}

.certbox li {
  font-size: 11px;
  margin-bottom: 10px;
  color: #e0e6ea;
}

/* Referans Duvarı */
#references {
  background: #f6f3ed;
}

#references > .kicker {
  color: #7a6540;
}

#references > .display {
  margin-bottom: 10px;
}

#references > p {
  max-width: 760px;
  color: #68737c;
  margin-bottom: 34px;
}

.reference-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid #d8d1c5;
  border-bottom: 1px solid #d8d1c5;
}

.reference-item {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 76px;
  padding: 15px 18px;
  border-bottom: 1px solid #e2ddd4;
  position: relative;
  transition: 0.18s ease;
}

.reference-item:nth-child(3n+1),
.reference-item:nth-child(3n+2) {
  border-right: 1px solid #e2ddd4;
}

.reference-item:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(10, 29, 49, 0.07);
  z-index: 2;
}

.reference-mark {
  width: 37px;
  height: 37px;
  min-width: 37px;
  border: 1px solid #d7a94d;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: Georgia, serif;
  font-size: 11px;
  color: #9a7127;
  background: #fffaf0;
}

.reference-name {
  font-family: Georgia, serif;
  font-size: 13px;
  line-height: 1.25;
  color: #10253a;
  font-weight: 600;
  letter-spacing: 0.1px;
}

/* Footer & Alt Alanlar */
.footercta {
  background: linear-gradient(90deg, var(--navy), #123b59);
  color: #fff;
  padding: 45px 7%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footercta h2 {
  font-family: Georgia, serif;
  font-size: 30px;
  font-weight: 400;
  margin: 0;
}

footer {
  background: #031827;
  color: #aebac2;
  padding: 35px 7%;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
}

footer .logo {
  color: #fff;
}

/* ----------------------------------------------------
   MOBİL VE TABLET UYUMLULUĞU (RESPONSIVE)
---------------------------------------------------- */
@media (max-width: 900px) {
  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  /* Mobil Çekmece Menü */
  .navlinks {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    height: calc(100vh - 72px);
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 20px 7% 40px;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.28s ease-in-out;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .navlinks.open {
    transform: translateX(0);
  }

  .navlinks a {
    display: block !important;
    width: 100%;
    padding: 14px 0 !important;
    font-size: 14px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .navitem {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .submenu {
    position: static;
    visibility: visible;
    opacity: 1;
    transform: none;
    box-shadow: none;
    border-top: none;
    border-left: 2px solid var(--gold);
    background: rgba(3, 24, 39, 0.6);
    padding: 6px 0 6px 14px;
    margin: 8px 0 12px 0;
    width: 100%;
  }

  .submenu a {
    font-size: 12px !important;
    padding: 9px 0 !important;
    border-bottom: none;
  }

  .navlinks .cta {
    width: 100%;
    text-align: center;
    margin-top: 20px;
    padding: 14px 0 !important;
  }

  /* Tipografi & Grid Düzenlemeleri */
  .hero {
    padding: 60px 6%;
    min-height: auto;
    background-position: center;
  }

  .hero h1 {
    font-size: 38px;
    line-height: 1.12;
  }

  .pagehero .display {
    font-size: 34px;
  }

  .display {
    font-size: 28px;
  }

  .servicebar,
  .cards,
  .values,
  .sectors,
  .steps,
  .two,
  .owner {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .servicebar > div {
    min-height: auto;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .checks {
    columns: 1;
  }

  .reference-wall {
    grid-template-columns: 1fr;
  }

  .reference-item {
    border-right: 0 !important;
  }

  .reference-name {
    font-size: 14px;
  }

  .footercta {
    display: block;
    text-align: center;
  }

  .footercta .btn {
    margin-top: 20px;
  }

  footer {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 30px;
  }
  .display {
    font-size: 24px;
  }
}