:root{
  --bg: #f6f5f2;                 /* off-white */
  --paper: #fbfbfa;              /* page surface */
  --text: #111111;
  --muted: rgba(17,17,17,0.56);
  --line: rgba(17,17,17,0.10);
}

*{ box-sizing:border-box; }

.brand-logo{
  height: 39px;
  opacity: 0.82;
  border-radius: 16px;
  background: rgba(17,17,17,0.9);
}


html, body{ height:100%; }

body{
  margin:0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background: var(--bg);
  color: var(--text);
}

/* Page “paper” surface */
.page{
  max-width: 980px;
  margin: 64px auto;
  padding: 56px 64px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.07);
  background: linear-gradient(180deg, #fbfbfa 0%, #f9f8f6 100%);
  padding-bottom: 72px;
}

.expln{
    opacity: 0.75;
    font-size: 0.9rem;
}

/* Content column */
.container{
  max-width: 820px;
  margin: 0 auto;
}

/* Typography */

.hero{
    padding-top: 7vh;
}

.hero h1{
  font-size: clamp(40px, 10vw, 64px);
  letter-spacing: -0.035em;
  line-height: 1.02;
  font-weight: 600;
  max-width: 100%;
  margin-bottom: 10px;
}

.hero-sub{
  font-style: italic;
  font-size: 17px;
  letter-spacing: 0.01em;
  margin: 0;
  margin-top: 12px;
  opacity: 0.85;
  color: var(--muted);
  max-width: 46ch;
}

p{ margin: 0 0 18px 0; }

.lead{
  font-size: 19px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 74ch;
  margin-top: 10px;
}

h3{
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 34px 0 12px 0;
  color: rgba(17,17,17,0.85);
  opacity: 0.9;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

ul{
  margin: 0 0 22px 0;
  padding-left: 18px;
}

li{
  margin: 0 0 10px 0;
  line-height: 1.75;
  max-width: 72ch;
  color: rgba(17,17,17,0.92);
  padding-left: 2px;
}

.note{
  margin-top: 68px;
  font-size: 14px;
  color: rgba(17,17,17,0.6);
  letter-spacing: 0.01em;
  max-width: 85ch;
}

/* Navigation */
/* Top navigation — prestige version */
.topnav{
  display:flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 6px;

  /* nav artık “bölüm” gibi değil, “index” gibi */
  padding-bottom: 0;
  margin-bottom: 46px;
  border-bottom: 0;

  opacity: 1; /* opacity’yi container’a değil linklere vereceğiz */
}

.topnav .navlink{
  color: rgba(17,17,17,0.58);     /* bilinçli geri it */
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-inline: 35px;
  gap: 18px;

  padding: 8px 10px;             /* “underline” yerine hit-area */
  border-radius: 999px;          /* pill */
  border: 0;                     /* underline öldü */
  opacity: 1;

  transition: background 160ms ease, color 160ms ease;
}

.topnav .navlink:hover{
  color: rgba(17,17,17,0.90);
  background: rgba(17,17,17,0.04);  /* elit hover */
}

.topnav .navlink.is-active{
  color: rgba(17,17,17,0.92);
  background: rgba(17,17,17,0.06);  /* “selected tab” hissi */
}

.topnav .navlink:focus{
  outline: none;
  color: rgba(17,17,17,0.92);
  background: rgba(17,17,17,0.06);
}


/* Contact */

textarea{
  width: 100%;
  padding: 18px 20px;
  font-size: 16px;
  line-height: 1.7;
  min-height: 220px;

  border: 0;
  border-radius: 12px;

  background: transparent;
  box-shadow: inset 0 0 0 1px rgba(17,17,17,0.12);

  font-family: inherit;
  resize: vertical;
}

textarea:focus{
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(17,17,17,0.35);
}


.wide-textarea{
  max-width: 820px;
}

.form-actions{ margin-top: 14px; }

.btn-primary{
  padding: 10px 18px;
  font-size: 12px;
  letter-spacing: 0.18em;
}

button.cta{
  margin-top: 18px;
  padding: 10px 18px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid rgba(17,17,17,0.25);
  border-radius: 999px;
  color: rgba(17,17,17,0.85);
  cursor: pointer;
}

button.cta:hover{
  border-color: rgba(17,17,17,0.6);
  color: #111;
}

button.cta:focus{
  outline: none;
  border-color: rgba(17,17,17,0.6);
}


.brandbar{
  display:flex;
  align-items:center;
  gap:14px;
  padding-bottom: 22px;
  margin-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.mark{
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius: 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  letter-spacing: 0.08em;
}

.name{
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(17,17,17,0.88);
}

.desc{
  font-size: 13px;
  color: var(--muted);
  margin-top: 3px;
}

.hero-divider{
  width: 56px;
  height: 1px;
  background: var(--line);
  margin: 22px 0 0 0;
}

p, li{
  font-size: 16px;
  letter-spacing: 0.01em;
}


.hero-meta{
  margin-top: 18px;
  max-width: 64ch;
}

.meta-line{
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: rgba(17,17,17,0.78);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.meta-line span{
  position: relative;
  padding-right: 14px;
}

.meta-line span::after{
  content: "·";
  position: absolute;
  right: 4px;
  top: 0;
  opacity: 0.35;
}

.meta-line span:last-child::after{
  content: "";
}

.meta-gate{
  margin: 10px 0 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}


.site-footer{
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid var(--line);

  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;

  font-size: 12px;
  color: var(--muted);
}

.site-footer .footer-left{
  letter-spacing: 0.08em;
}
.entity-signature {
  letter-spacing: 0.1em;
}

.site-footer .footer-right{
  max-width: 320px;
  text-align: right;
  line-height: 1.5;
}

/* Mobile polish */
@media (max-width: 720px){
  .site-footer{
    flex-direction: column;
    gap: 10px;
  }
  .site-footer .footer-right{
    max-width: 100%;
    text-align: left;
  }
}

/* Contact — premium form surface */
.contact-card{
  margin-top: 18px;
  padding: 22px 22px 18px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.55);
}

.field-label{
  display:block;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(17,17,17,0.72);
  margin: 0 0 10px 0;
}

textarea{
  width: 100%;
  padding: 18px 18px;
  font-size: 16px;
  line-height: 1.75;
  min-height: 260px;
  border: 1px solid rgba(0,0,0,0.16);
  background: rgba(255,255,255,0.75);
  border-radius: 12px;
  resize: vertical;
  font-family: inherit;
}

textarea:focus{
  outline: none;
  border-color: rgba(0,0,0,0.45);
  background: rgba(255,255,255,0.92);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

.form-actions{
  margin-top: 14px;
  display:flex;
  align-items:center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary{
  appearance: none;
  border: 1px solid rgba(17,17,17,0.18);
  background: rgba(17,17,17,0.92);
  color: #fff;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 28px;
  gap: 18px;
  justify-content: flex-start;
  max-width: 680px;
}

.btn-primary:hover{
  background: #111;
}

.btn-primary:focus{
  outline: none;
  box-shadow: 0 0 0 4px rgba(17,17,17,0.10);
}

.microcopy{
  font-size: 12px;
  color: var(--muted);
}


.split{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  margin-top: 28px;
}

.split .col{
  padding-top: 4px;
}

.notfor{
  border-left: 1px solid var(--line);
  padding-left: 28px;
}

@media (max-width: 820px){
  .split{ grid-template-columns: 1fr; }
  .notfor{ border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 22px; }
}

.principles{
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  max-width: 70ch;
}

.principle{
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.55);
  border-radius: 14px;
  padding: 14px 16px;
}

.principle-title{
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(17,17,17,0.82);
  margin-bottom: 6px;
}

.principle-body{
  font-size: 15px;
  line-height: 1.65;
  color: rgba(17,17,17,0.72);
}


.criteria{
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  max-width: 70ch;
}

.criterion{
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.5);
  border-radius: 14px;
  padding: 14px 16px;
}

.criterion-title{
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(17,17,17,0.82);
  margin-bottom: 6px;
}

.criterion-body{
  font-size: 15px;
  line-height: 1.65;
  color: rgba(17,17,17,0.72);
}

.cred-lock{
  margin-top: 64px;
  padding-top: 14px;
  border-top: 1px dashed rgba(0,0,0,0.08);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(17,17,17,0.45);
}


/* Home — CTA + cards + steps */
.cta-row{
  margin-top: 18px;
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid rgba(17,17,17,0.18);
  color: rgba(17,17,17,0.86);
  background: transparent;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.btn.primary{
  background: rgba(17,17,17,0.92);
  color: #fff;
  border-color: rgba(17,17,17,0.92);
  opacity: 0.82;

  padding: 10px 18px;
  font-size: 12px;
  letter-spacing: 0.18em;

  text-align: center;
  white-space: nowrap;
  margin-top: 40px;
}

.cta-row{
  display: flex;
  gap: 24px;              /* butonlar arası boşluk */
  justify-content: flex-start;
  flex-wrap: wrap;
}

.cta-row .btn.primary{
  min-width: 180px;
}

.btn.primary:hover{ background: #111; }
.btn.ghost:hover{ border-color: rgba(17,17,17,0.45); }

.home-block{
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.home-block h2{
  margin: 0 0 14px 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(17,17,17,0.82);
}

.card-grid{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.card{
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.55);
  border-radius: 14px;
  padding: 16px 16px 14px 16px;
}

.card h3{
  margin: 0 0 8px 0;
}

.card p{
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(17,17,17,0.72);
}

.steps{
  margin: 0;
  padding-left: 18px;
  color: rgba(17,17,17,0.78);
}

.steps li{
  margin: 10px 0;
}

.step-kicker{
  display:inline-block;
  width: 28px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(17,17,17,0.48);
}

@media (max-width: 820px){
  .card-grid{ grid-template-columns: 1fr; }
}


.hp-field { display:none; }

.wide-input, select {
  width: 100%;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 14px;
  margin-bottom: 12px;
  background: #fff;
}

.field-row { margin-top: 10px; }

.notice{
  margin-bottom: 14px;
  font-size: 13px;
  color: rgba(0,0,0,0.6);
}