/* =========================
   RESET & BASE
========================= */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root{
  --primary: #0A1A2F;    /* Deep Space Blue */
  --secondary: #2E2E2E;  /* Graphite Gray */
  --accent: #47C1BF;     /* Aqua */
  --ivory: #F6F4EF;      /* Soft Ivory */
  --steel: #CBD3D7;      /* Light Steel */
  --panel: rgba(246, 244, 239, 0.06);
  --panel-2: rgba(246, 244, 239, 0.09);
}

body{
  font-family: "Inter", sans-serif;
  background: var(--primary);
  color: var(--ivory);
  line-height: 1.6;
}

/* =========================
   LAYOUT HELPERS
========================= */

intro.section{
  padding-top: 40px;
  padding-bottom: 40px;
}


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

.section{
  padding: 52px 0;
}

.section-title{
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  letter-spacing: 0.2px;
  font-size: 26px;
  margin-bottom: 10px;
}

.section-text{
  color: var(--steel);
  font-size: 16px;
  max-width: 980px;
}

/* =========================
   HEADER
========================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 26, 47, 0.90);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(203, 211, 215, 0.25);
}

.header-inner{
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.logo-area{
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ivory);
}

.logo-area img{
  height: 34px;
  width: auto;
  display: block;
}

.brand-name{
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  letter-spacing: 2px;
  font-size: 14px;
}

.main-nav{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  justify-content: center;
  align-items: center;
}

.main-nav a{
  text-decoration: none;
  color: var(--ivory);
  font-size: 13px;
  opacity: 0.92;
  padding: 6px 8px;
  border-radius: 10px;
}

.main-nav a:hover{
  color: var(--accent);
  background: rgba(71, 193, 191, 0.08);
}

.lang-switch{
  display: flex;
  gap: 8px;
}

.lang-switch button{
  background: transparent;
  border: 1px solid rgba(203, 211, 215, 0.40);
  color: var(--ivory);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
}

.lang-switch button:hover{
  border-color: rgba(71, 193, 191, 0.65);
  color: var(--accent);
}

.lang-switch button.is-active{
  border-color: var(--accent);
  color: var(--accent);
}

/* =========================
   HERO
========================= */
.hero{
  padding: 64px 0 40px;
}

.hero-inner{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.hero-kicker{
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid rgba(203, 211, 215, 0.25);
  border-radius: 999px;
  color: var(--steel);
  font-size: 13px;
  margin-bottom: 16px;
  background: rgba(246, 244, 239, 0.04);
}

.hero-title{
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 40px;
  line-height: 1.15;
  margin-bottom: 18px;
}

.hero-text{
  font-size: 17px;
  color: var(--steel);
  margin: 0 auto 26px;
  max-width: 900px;
}

.hero-actions{
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 700;
  font-size: 14px;
  border: 1px solid transparent;
}

.btn-primary{
  background: var(--accent);
  color: var(--primary);
}

.btn-primary:hover{
  filter: brightness(0.95);
}

.btn-ghost{
  background: rgba(246, 244, 239, 0.06);
  border-color: rgba(203, 211, 215, 0.25);
  color: var(--ivory);
}

.btn-ghost:hover{
  border-color: rgba(71, 193, 191, 0.55);
}

/* =========================
   CARDS / GRID
========================= */
.grid-3{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.card{
  background: var(--panel);
  border: 1px solid rgba(203, 211, 215, 0.18);
  border-radius: 18px;
  padding: 18px;
}

.card h3{
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 10px;
}

.card p{
  color: var(--steel);
  font-size: 14px;
}

/* =========================
   QUICK LINKS (Home)
========================= */
.grid-2{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.link-card{
  display: block;
  text-decoration: none;
  background: var(--panel);
  border: 1px solid rgba(203, 211, 215, 0.18);
  border-radius: 18px;
  padding: 16px 16px 14px;
  color: var(--ivory);
}

.link-card:hover{
  border-color: rgba(71, 193, 191, 0.55);
  background: rgba(246, 244, 239, 0.08);
}

.link-card strong{
  display: block;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 8px;
}

.link-card-sub{
  display: block;
  color: var(--steel);
  font-size: 13px;
}

/* =========================
   HIGHLIGHT STRIP
========================= */
.highlight-strip{
  background: var(--accent);
  color: var(--primary);
  padding: 16px 0;
}

.highlight-inner{
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.highlight-text{
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

.highlight-link{
  color: var(--primary);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(10, 26, 47, 0.10);
  border: 1px solid rgba(10, 26, 47, 0.15);
}

.highlight-link:hover{
  background: rgba(10, 26, 47, 0.14);
}

/* =========================
   FOOTER
========================= */
.site-footer{
  border-top: 1px solid rgba(203, 211, 215, 0.18);
  padding: 22px 0;
  color: var(--steel);
  font-size: 13px;
}

.footer-inner{
  display: flex;
  justify-content: center;
}

.footer-stack{
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.footer-updated{
  opacity: 0.95;
}

/* =========================
   MOBILE MENU (HAMBURGER)
========================= */
.sr-only{
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.nav-toggle{
  display: none;
  background: transparent;
  border: 1px solid rgba(203, 211, 215, 0.40);
  color: var(--ivory);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 800;
  font-size: 16px;
}

.mobile-menu{
  display: none;
  border-top: 1px solid rgba(203, 211, 215, 0.18);
  background: rgba(10, 26, 47, 0.96);
  backdrop-filter: blur(10px);
  padding: 10px 14px 14px;
}

.mobile-menu a{
  display: block;
  padding: 10px 10px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--ivory);
  font-size: 14px;
}

.mobile-menu a:hover{
  color: var(--accent);
  background: rgba(71, 193, 191, 0.08);
}

.mobile-menu.is-open{
  display: block;
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 980px){
  .main-nav{ display: none; }
  .nav-toggle{ display: inline-flex; align-items: center; justify-content: center; }
  .hero-title{ font-size: 34px; }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .highlight-inner{ flex-direction: column; align-items: flex-start; }
}

/* =========================
   READABILITY PATCH (Links + Text)
   - Keeps Origemus dark mood
   - Fixes default blue links
========================= */

/* 1) Body text: a tiny bit softer for long reading */
:root{
  --text: rgba(246, 244, 239, 0.92);   /* near-ivory */
  --muted: rgba(203, 211, 215, 0.92);  /* steel */
  --link: rgba(71, 193, 191, 0.92);    /* accent (aqua) */
  --link-hover: rgba(71, 193, 191, 1);
  --link-underline: rgba(71, 193, 191, 0.35);
}

/* 2) Default text color tune (keeps theme, improves comfort) */
body{
  color: var(--text);
}

/* 3) Muted paragraphs remain easy to read */
.section-text{
  color: var(--muted);
}

/* 4) Link styling: remove default blue + use Origemus accent */
a{
  color: var(--link);
  text-decoration: none;
  text-underline-offset: 3px;
}

/* For content links only (in paragraphs) add a subtle underline */
.section-text a{
  text-decoration: underline;
  text-decoration-color: var(--link-underline);
  text-decoration-thickness: 1px;
}

/* Hover/focus: clearer but not screaming */
a:hover{
  color: var(--link-hover);
}

.section-text a:hover{
  text-decoration-color: rgba(71, 193, 191, 0.65);
}

/* Keyboard accessibility + calm focus ring */
a:focus-visible,
button:focus-visible{
  outline: 2px solid rgba(71, 193, 191, 0.55);
  outline-offset: 3px;
  border-radius: 8px;
}

/* Visited links: keep same family (no purple) */
a:visited{
  color: rgba(71, 193, 191, 0.88);
}

/* Optional: slightly reduce harshness of header border lines */
.site-header,
.site-footer{
  border-color: rgba(203, 211, 215, 0.18);
}

/* =========================
   BACKGROUND SOFTENING
   (Keeps dark academic mood, reduces eye fatigue)
========================= */

/* Ana sayfa ve içerik arka planını çok az açıyoruz */
body{
  background:
    radial-gradient(
      1200px 600px at 20% -10%,
      rgba(255,255,255,0.035),
      transparent 60%
    ),
    linear-gradient(
      180deg,
      #0b1f35 0%,   /* önceki çok koyu ton */
      #0e2742 60%,  /* biraz daha açık */
      #0b1f35 100%
    );
}

/* Section arka planları varsa, kontrastı yumuşat */
.section{
  background: transparent;
}

/* Header ve footer arka planını da hafif yumuşat */
.site-header,
.site-footer{
  background-color: rgba(10, 26, 47, 0.92);
}

/* =========================
   NAVBAR LINK CALM STYLE
========================= */

.main-nav a{
  color: rgba(246, 244, 239, 0.88);
  padding: 6px 10px;
  border-radius: 10px;
  transition:
    background-color 0.18s ease,
    color 0.18s ease;
}

/* Hover: çok yumuşak arka plan */
.main-nav a:hover{
  background-color: rgba(71, 193, 191, 0.08);
  color: rgba(246, 244, 239, 1);
}

/* Aktif sayfa hissi (istersen sonra class ekleriz) */
.main-nav a.is-active{
  background-color: rgba(71, 193, 191, 0.14);
  color: rgba(246, 244, 239, 1);
}

/* Mobile menu linkleri de aynı sakinlikte */
.mobile-menu a{
  color: rgba(246, 244, 239, 0.9);
}

.mobile-menu a:hover{
  background-color: rgba(71, 193, 191, 0.10);
  color: rgba(246, 244, 239, 1);
}

.card-actions .btn-primary,
.card-actions .btn-primary:visited {
  background: #0b6f74 !important;     
  color: #ffffff !important;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.18);
}

.card-actions .btn-primary:hover {
  filter: brightness(1.05);
}

.pub-cite {
  font-size: 0.95rem;      
  line-height: 1.55;
  font-weight: 400;
}

.section-title {
  font-size: 1.35rem;    
  margin-top: 2.2rem;
  margin-bottom: 1.1rem;
  letter-spacing: 0.2px;
}

.pub-year {
  font-size: 1.15rem;
  font-weight: 600;
  opacity: 0.85;
}

.pub-item {
  padding: 1.2rem 1.4rem;  
}

.hero-why{
  list-style:none;
  padding:0;
  margin: 14px auto 0;
  max-width: 820px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:center;
}

.hero-why li{
  padding:10px 12px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:14px;
  background: rgba(10,26,47,.18);
  font-size:.95rem;
  opacity:.95;
}

.hero-proof{
  max-width:820px;
  margin: 10px auto 0;
  font-size:.95rem;
  opacity:.85;
}

.hero-proof a{ text-decoration: underline; }

/* === HERO → CONTENT TRANSITION REFINEMENT === */

/* Hero ile ilk içerik arasındaki boşluk */
.hero + .section{
  padding-top: 28px;
}

/* Alt bölüm başlığı: biraz daha sakin */
.section h2{
  margin-top: 0;
  margin-bottom: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Alt bölüm paragrafı: daha rahat okuma */
.section p{
  margin-top: 0;
  line-height: 1.6;
  max-width: 880px;
}

/* HERO buttons spacing */
.hero-actions{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;          /* butonlar arası mesafe */
  margin-top: 18px;   /* üst satırla araya nefes */
}
/* ABOUT: Value proposition + quick links */
.value-prop{
  font-size: 18px;
  line-height: 1.6;
  color: rgba(231,241,248,.92);
  max-width: 980px;
  margin: 10px 0 14px;
}

.about-quicklinks{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 22px;
}

.chip-link{
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.04);
  color: rgba(231,241,248,.95);
  text-decoration: none;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.chip-link:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.32);
}

/* ABOUT: Metrics strip */
.about-metrics{
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 10px;
}

.metric{
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.03);
}

.metric-value{
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: rgba(231,241,248,.96);
}

.metric-label{
  margin-top: 6px;
  font-size: 13.5px;
  color: rgba(231,241,248,.76);
}

.section-hint{
  margin: 0 0 18px;
  color: rgba(231,241,248,.7);
  font-size: 13.5px;
}

/* ABOUT: Founder card */
.about-founder{ margin: 14px 0 24px; }

.founder-card{
  padding: 16px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.03);
  max-width: 980px;
}

.founder-title{
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.founder-text{
  margin: 0 0 12px;
  color: rgba(231,241,248,.88);
  line-height: 1.6;
}

.founder-links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 900px){
  .about-metrics{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ABOUT: Research scope cards */
.scope-grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 14px 0 6px;
  max-width: 1100px;
}

.scope-card{
  padding: 16px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.03);
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.scope-card:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.22);
}

.scope-title{
  margin: 0 0 8px;
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 16px;
  color: rgba(231,241,248,.96);
}

.scope-text{
  margin: 0 0 10px;
  line-height: 1.55;
  color: rgba(231,241,248,.84);
  font-size: 14.5px;
}

.scope-tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag{
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.03);
  color: rgba(231,241,248,.78);
  font-size: 12px;
}

.scope-footer-note{
  margin: 10px 0 0;
  color: rgba(231,241,248,.75);
  font-size: 13.5px;
}

.scope-footer-note a{
  color: rgba(32,201,184,.95);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 980px){
  .scope-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px){
  .scope-grid{ grid-template-columns: 1fr; }
}