:root {
  --teal:   #62D3D1;
  --teal-1: #10BAB1;
  --teal-2: #148581;
  --teal-3: #0A7B75;

  --bg: #060C0B;

  --text:  rgba(255, 255, 255, 0.76);
  --muted: rgba(255, 255, 255, 0.35);

  --g-bg:     rgba(98, 211, 209, 0.04);
  --g-border: rgba(98, 211, 209, 0.12);
  --g-blur:   blur(26px);

  --font: 'Libre Baskerville', Baskerville, 'Baskerville Old Face',
          'Hoefler Text', Georgia, serif;
  --ease: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --r: 20px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  { font-family: var(--font); background: var(--bg); color: #fff; overflow-x: hidden; line-height: 1.75; }
a     { text-decoration: none; color: inherit; }
img   { max-width: 100%; display: block; }

body::before {
  content: '';
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 75% 60% at  5%  5%,  rgba(10, 123,117,0.42) 0%, transparent 65%),
    radial-gradient(ellipse 52% 46% at 94% 90%,  rgba(98, 211,209,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 40% 36% at 55% 45%,  rgba(20, 133,129,0.12) 0%, transparent 52%),
    radial-gradient(ellipse 35% 30% at 20% 78%,  rgba(10, 123,117,0.20) 0%, transparent 50%),
    radial-gradient(ellipse 28% 24% at 78% 16%,  rgba(98, 211,209,0.08) 0%, transparent 46%),
    #060C0B;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 2rem; }
.teal { color: var(--teal); }

.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  padding: 0.9rem 2rem;
  background: rgba(6, 12, 11, 0.40);
  backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border-bottom: 1px solid rgba(98,211,209,0.1);
  transition: background var(--ease);
}
.navbar.scrolled { background: rgba(6, 12, 11, 0.80); }

.nav-inner {
  max-width: 1080px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 0.65rem; }
.nav-logo-img {
  width: 30px; height: 30px;
  object-fit: cover; object-position: center;
  border-radius: 50%;
  border: 1px solid rgba(98,211,209,0.22);
  box-shadow: 0 0 12px rgba(98,211,209,0.2);
}
.nav-name {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.22em; color: var(--teal);
}

.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-size: 0.78rem; letter-spacing: 0.1em; color: var(--muted);
  position: relative; transition: color var(--ease);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -3px; left: 0;
  width: 0; height: 1px; background: var(--teal); transition: width var(--ease);
}
.nav-links a:hover          { color: var(--teal); }
.nav-links a:hover::after   { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 0.8rem; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 20px; height: 1.5px;
  background: var(--teal); border-radius: 2px; transition: all var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  display: none; flex-direction: column; gap: 1rem;
  padding: 1.1rem 0 0.3rem;
  border-top: 1px solid rgba(98,211,209,0.08); margin-top: 0.8rem;
  max-width: 1080px; margin-inline: auto;
}
.mobile-nav a { color: var(--muted); font-size: 0.88rem; letter-spacing: 0.08em; transition: color var(--ease); }
.mobile-nav a:hover  { color: var(--teal); }
.mobile-nav.open     { display: flex; }

.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 9rem 2rem 7rem; position: relative; overflow: hidden;
}
.hero::before, .hero::after {
  content: ''; position: absolute; border-radius: 50%; pointer-events: none;
}
.hero::before {
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(98,211,209,0.07) 0%, transparent 68%);
  top: 8%; right: 3%;
  animation: bubble 9s ease-in-out infinite;
}
.hero::after {
  width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(10,123,117,0.09) 0%, transparent 68%);
  bottom: 14%; left: 4%;
  animation: bubble 12s ease-in-out infinite reverse;
}
@keyframes bubble {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-20px) scale(1.04); }
}

.hero-body {
  position: relative; z-index: 1;
  text-align: center; display: flex; flex-direction: column;
  align-items: center; max-width: 760px; width: 100%;
}

.hero-logo-wrap { margin-bottom: 2.8rem; }
.hero-logo-img {
  width: 120px; height: 120px;
  object-fit: cover; object-position: center;
  border-radius: 50%;
  margin: 0 auto;
  border: 1.5px solid rgba(98,211,209,0.28);
  box-shadow:
    0 0 0 6px rgba(98,211,209,0.07),
    0 0 40px rgba(98,211,209,0.28),
    0 0 80px rgba(98,211,209,0.10);
}
.hero-logo-placeholder {
  width: 120px; height: 120px;
  border: 1px dashed rgba(98,211,209,0.28); border-radius: 50%;
  display: none; align-items: center; justify-content: center; margin: 0 auto;
  color: rgba(98,211,209,0.3); font-size: 0.6rem; letter-spacing: 0.32em;
}

.hero-title {
  font-size: clamp(3rem, 9vw, 6.2rem);
  font-weight: 700; letter-spacing: 0.26em; line-height: 1; margin-bottom: 1rem;
  background: linear-gradient(120deg, #fff 0%, var(--teal) 65%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 40px rgba(98,211,209,0.18));
}
.hero-tagline {
  font-size: clamp(0.82rem, 1.8vw, 1rem); font-style: italic;
  color: rgba(98,211,209,0.75); letter-spacing: 0.2em; margin-bottom: 4rem;
}

.countdown-block { margin-bottom: 3.8rem; }
.countdown-label {
  font-size: 0.62rem; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1.5rem;
}
.countdown { display: flex; align-items: flex-start; justify-content: center; gap: 0.6rem; flex-wrap: wrap; }

.cd-cell {
  display: flex; flex-direction: column; align-items: center;
  min-width: 86px; padding: 1.25rem 1rem 1rem; border-radius: 20px;
  background: var(--g-bg); backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border: 1px solid var(--g-border);
  transition: border-color var(--ease), box-shadow var(--ease);
}
.cd-cell:hover { border-color: rgba(98,211,209,0.26); box-shadow: 0 0 24px rgba(98,211,209,0.08); }
.cd-num {
  font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 700; color: var(--teal);
  line-height: 1; font-variant-numeric: tabular-nums; letter-spacing: 0.03em;
}
.cd-unit { font-size: 0.56rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); margin-top: 0.5rem; }
.cd-colon { font-size: 2rem; font-weight: 700; color: rgba(98,211,209,0.22); margin-top: 0.65rem; line-height: 1; user-select: none; }

.hero-cta {
  display: inline-block; padding: 0.88rem 2.5rem;
  background: var(--g-bg); backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border: 1px solid rgba(98,211,209,0.3); color: var(--teal);
  font-family: var(--font); font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; border-radius: 50px;
  transition: all var(--ease);
}
.hero-cta:hover {
  background: rgba(98,211,209,0.1); border-color: rgba(98,211,209,0.5);
  transform: translateY(-2px); box-shadow: 0 0 36px rgba(98,211,209,0.12);
}

.scroll-line { position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%); }
.scroll-line span {
  display: block; width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, rgba(98,211,209,0.45));
  animation: scrollAnim 2.4s ease-in-out infinite;
}
@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top;    opacity: 0; }
  50%  { transform: scaleY(1); transform-origin: top;    opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

section + section { border-top: 1px solid rgba(98,211,209,0.07); }

.section-eyebrow {
  display: block; font-size: 0.62rem; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--muted); text-align: center; margin-bottom: 0.65rem;
}
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.5rem); font-weight: 700;
  letter-spacing: 0.07em; text-align: center; margin-bottom: 1rem;
}
.section-sub {
  text-align: center; color: var(--muted); font-style: italic;
  margin-bottom: 3.5rem; font-size: 0.88rem; letter-spacing: 0.05em;
}

.about { padding: 8rem 2rem; }
.about-text {
  max-width: 620px; margin: 2rem auto 0;
  display: flex; flex-direction: column; gap: 1.3rem; text-align: center;
}
.about-text p { color: var(--text); font-size: 0.95rem; line-height: 1.9; }

.letters { padding: 8rem 2rem; }

.letters-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
  margin-top: 0.5rem;
}

.letter-card {
  background: var(--g-bg);
  backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border: 1px solid var(--g-border);
  border-radius: var(--r); padding: 2rem 1.8rem;
  display: flex; flex-direction: column; gap: 1.1rem;
  position: relative; overflow: hidden;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
.letter-card::before {
  content: ''; position: absolute; top: 0; left: 16%; right: 16%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(98,211,209,0.4), transparent);
  opacity: 0; transition: opacity var(--ease);
}
.letter-card:hover {
  border-color: rgba(98,211,209,0.22); transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(98,211,209,0.07);
}
.letter-card:hover::before { opacity: 1; }

.letter-header { display: flex; align-items: center; gap: 1.1rem; }

.letter-portrait-wrap {
  width: 62px; height: 62px; border-radius: 50%; overflow: hidden; flex-shrink: 0;
  border: 1px solid rgba(98,211,209,0.2);
}
.letter-portrait { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.letter-portrait-ph {
  display: flex; width: 100%; height: 100%;
  align-items: center; justify-content: center;
  background: rgba(98,211,209,0.05);
  font-size: 0.65rem; letter-spacing: 0.1em; font-style: italic;
  color: rgba(98,211,209,0.35);
}

.letter-meta { display: flex; flex-direction: column; gap: 0.25rem; }
.letter-role {
  font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--teal); opacity: 0.7;
}
.letter-name { font-size: 0.95rem; font-weight: 700; letter-spacing: 0.04em; }

.letter-body {
  font-size: 0.86rem; color: var(--text); line-height: 1.85;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.letter-read-btn {
  background: none;
  border: 1px solid rgba(98,211,209,0.22);
  border-radius: 50px;
  padding: 0.46rem 1.1rem;
  font-family: var(--font); font-size: 0.66rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--teal); cursor: pointer;
  align-self: flex-start;
  transition: background var(--ease), border-color var(--ease);
}
.letter-read-btn:hover {
  background: rgba(98,211,209,0.08);
  border-color: rgba(98,211,209,0.4);
}

.ataturk { padding: 8rem 2rem; }

.ataturk-panel {
  display: flex; align-items: center; gap: 3.5rem;
  max-width: 780px; margin: 0 auto;
  background: var(--g-bg);
  backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border: 1px solid var(--g-border);
  border-radius: 28px; padding: 3rem 3.5rem;
  position: relative; overflow: hidden;
}
.ataturk-panel::before {
  content: ''; position: absolute; top: 0; left: 15%; right: 15%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(98,211,209,0.35), transparent);
}

.ataturk-portrait-wrap {
  flex-shrink: 0; width: 130px; height: 160px;
  border-radius: 16px; overflow: hidden; border: 1px solid rgba(98,211,209,0.18);
}
.ataturk-img { width: 100%; height: 100%; object-fit: cover; object-position: center top; filter: grayscale(15%) contrast(1.05); }
.ataturk-img-placeholder {
  display: none; width: 100%; height: 100%;
  align-items: center; justify-content: center; background: rgba(98,211,209,0.05);
}
.ataturk-initials { font-size: 1.5rem; font-weight: 700; letter-spacing: 0.12em; color: rgba(98,211,209,0.3); font-style: italic; }

.ataturk-content { display: flex; flex-direction: column; gap: 0.9rem; }
.ataturk-quote {
  font-size: clamp(1rem, 2.3vw, 1.38rem); font-style: italic;
  color: rgba(255,255,255,0.82); line-height: 1.65; letter-spacing: 0.02em;
}
.ataturk-divider { width: 36px; height: 1px; background: rgba(98,211,209,0.3); }
.ataturk-name { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.18em; color: var(--teal); text-transform: uppercase; }
.ataturk-dates { font-size: 0.63rem; letter-spacing: 0.22em; color: var(--muted); }

.dates { padding: 8rem 2rem; }
.dates-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: 0.5rem; }

.date-card {
  background: var(--g-bg);
  backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border: 1px solid var(--g-border); border-radius: var(--r);
  padding: 1.8rem 1.6rem; display: flex; flex-direction: column; gap: 0.65rem;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
.date-card:hover { border-color: rgba(98,211,209,0.26); transform: translateY(-3px); box-shadow: 0 0 28px rgba(98,211,209,0.07); }
.date-card--highlight { border-color: rgba(98,211,209,0.2); }

.date-label { font-size: 0.62rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); }
.date-val   { font-size: 1.35rem; font-weight: 700; letter-spacing: 0.05em; }

.apply { padding: 8rem 2rem; }

.cards-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }

.card {
  background: var(--g-bg);
  backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
  border: 1px solid var(--g-border); border-radius: var(--r);
  padding: 2.3rem 2rem; display: flex; flex-direction: column; gap: 0.85rem;
  position: relative; overflow: hidden;
  transition: border-color var(--ease), transform var(--ease), background var(--ease), box-shadow var(--ease);
}
.card::before {
  content: ''; position: absolute; top: 0; left: 18%; right: 18%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(98,211,209,0.45), transparent);
  opacity: 0; transition: opacity var(--ease);
}
.card:hover {
  background: rgba(98,211,209,0.06); border-color: rgba(98,211,209,0.22);
  transform: translateY(-5px); box-shadow: 0 16px 50px rgba(98,211,209,0.07);
}
.card:hover::before { opacity: 1; }

.card--center { grid-column: 1 / -1; max-width: 380px; width: 100%; margin: 0 auto; }

.card-index { font-size: 0.62rem; font-style: italic; letter-spacing: 0.24em; opacity: 0.42; }
.card-title { font-size: 1.32rem; font-weight: 700; letter-spacing: 0.05em; }
.card-desc  { font-size: 0.86rem; color: var(--text); line-height: 1.82; flex: 1; }

.card-btn {
  display: inline-block; align-self: flex-start; margin-top: 0.4rem;
  padding: 0.54rem 1.3rem; border-radius: 50px;
  font-family: var(--font); font-size: 0.68rem; letter-spacing: 0.15em;
  text-transform: uppercase; transition: all var(--ease); border: 1px solid transparent;
}
.card-btn.teal { border-color: rgba(98,211,209,0.28); color: var(--teal); }
.card-btn.teal:hover { background: rgba(98,211,209,0.1); border-color: rgba(98,211,209,0.45); }

.footer {
  border-top: 1px solid rgba(98,211,209,0.08);
  padding: 3.5rem 2rem 2rem;
  background: rgba(6,12,11,0.6);
  backdrop-filter: var(--g-blur); -webkit-backdrop-filter: var(--g-blur);
}
.footer-body { display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.footer-name { display: block; font-size: 0.95rem; font-weight: 700; letter-spacing: 0.22em; color: var(--teal); margin-bottom: 0.5rem; }
.footer-brand p { color: var(--muted); font-style: italic; font-size: 0.83rem; }
.footer-contact-title { font-size: 0.6rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem; }
.footer-contact a { color: var(--text); font-size: 0.86rem; transition: color var(--ease); }
.footer-contact a:hover { color: var(--teal); }
.footer-bar { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 1.4rem; text-align: center; color: rgba(255,255,255,0.16); font-size: 0.73rem; }

.modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  padding: 2rem;
  background: rgba(6, 12, 11, 0.80);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.38s var(--ease);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal-dialog {
  position: relative;
  width: 100%; max-width: 580px; max-height: 82vh;
  display: flex; flex-direction: column;
  background: rgba(98,211,209,0.055);
  backdrop-filter: blur(36px); -webkit-backdrop-filter: blur(36px);
  border: 1px solid rgba(98,211,209,0.18);
  border-radius: 26px;
  overflow: hidden;
  transform: translateY(22px) scale(0.96);
  transition: transform 0.4s cubic-bezier(0.34, 1.26, 0.64, 1);
}
.modal-overlay.open .modal-dialog { transform: translateY(0) scale(1); }

.modal-dialog::before {
  content: ''; position: absolute; top: 0; left: 12%; right: 12%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(98,211,209,0.5), transparent);
  z-index: 1;
}

.modal-close {
  position: absolute; top: 1.2rem; right: 1.4rem; z-index: 2;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%; width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 1.1rem; line-height: 1;
  cursor: pointer; transition: all var(--ease);
}
.modal-close:hover {
  background: rgba(98,211,209,0.12);
  border-color: rgba(98,211,209,0.3);
  color: var(--teal);
}

.modal-header {
  display: flex; align-items: center; gap: 1.4rem;
  padding: 2.4rem 2.4rem 1.6rem;
  flex-shrink: 0;
}

.modal-portrait-wrap {
  width: 76px; height: 76px; border-radius: 50%;
  overflow: hidden; flex-shrink: 0;
  border: 1px solid rgba(98,211,209,0.22);
}
.modal-portrait { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.modal-portrait-ph {
  display: none; width: 100%; height: 100%;
  align-items: center; justify-content: center;
  background: rgba(98,211,209,0.05);
  font-size: 0.72rem; letter-spacing: 0.1em; font-style: italic;
  color: rgba(98,211,209,0.35);
}

.modal-meta { display: flex; flex-direction: column; gap: 0.3rem; }
.modal-role {
  font-size: 0.62rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--teal); opacity: 0.75;
}
.modal-name { font-size: 1.15rem; font-weight: 700; letter-spacing: 0.04em; }

.modal-divider {
  height: 1px; margin: 0 2.4rem;
  background: rgba(98,211,209,0.12); flex-shrink: 0;
}

.modal-body {
  padding: 1.6rem 2.4rem 2.4rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(98,211,209,0.2) transparent;
}
.modal-body::-webkit-scrollbar { width: 4px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: rgba(98,211,209,0.2); border-radius: 2px; }

.modal-letter {
  font-size: 0.93rem; color: var(--text);
  line-height: 1.95; letter-spacing: 0.01em;
  white-space: pre-line;
}

@media (max-width: 700px) {
  .nav-links  { display: none; }
  .hamburger  { display: flex; }

  .letters-grid { grid-template-columns: 1fr; }
  .cards-grid   { grid-template-columns: 1fr; }
  .card--center { max-width: 100%; }

  .cd-colon { display: none; }
  .countdown { gap: 0.7rem; }
  .cd-cell { min-width: 68px; padding: 1rem 0.75rem 0.85rem; }

  .ataturk-panel { flex-direction: column; align-items: center; text-align: center; padding: 2.5rem 2rem; gap: 2rem; }
  .ataturk-divider { margin: 0 auto; }

  .footer-body { flex-direction: column; align-items: center; text-align: center; }
  .dates-grid  { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 420px) {
  .dates-grid { grid-template-columns: 1fr; }
  .hero-title { letter-spacing: 0.14em; }
}