* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: #f5f7fa;
  color: #1f2937;
}

h1,
h2,
p {
  margin-top: 0;
}

/* Eski yapi: index + contact */
.container {
  --container-pad: clamp(10px, 2vw, 24px);
  --container-gap: clamp(12px, 1.4vw, 20px);
  --container-box-pad: clamp(10px, 1.2vw, 18px);
  --container-font: clamp(0.96rem, 0.35vw + 0.88rem, 1.08rem);
  --container-h1: clamp(2rem, 2.2vw + 1.15rem, 3rem);
  --container-h2: clamp(1.55rem, 1.1vw + 1rem, 2.15rem);
  --container-line: clamp(1.4, 1.2vw + 1.1, 1.62);
  --container-nav-font: clamp(1rem, 0.45vw + 0.9rem, 1.24rem);
  --container-nav-gap: clamp(0.4rem, 1vw, 1rem);
  --container-nav-pad-y: clamp(0.35rem, 0.75vw, 0.6rem);
  --container-nav-pad-x: clamp(0.45rem, 0.95vw, 0.9rem);
  --container-form-pad: clamp(14px, 1.5vw, 24px);
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--container-pad);
}

.container .navbar {
  margin-bottom: var(--container-gap);
  height: clamp(64px, 10vh, 96px);
  padding: 0 2vw;
  margin-left: calc(var(--container-pad) * -1);
  margin-right: calc(var(--container-pad) * -1);
}

.container .logo {
  white-space: nowrap;
  flex-shrink: 0;
}

.container .nav-links {
  margin-left: auto;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--container-nav-gap);
}

.container .nav-links a {
  font-size: var(--container-nav-font);
  padding: var(--container-nav-pad-y) var(--container-nav-pad-x);
}

.container header {
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  padding: var(--container-box-pad);
  margin-bottom: var(--container-gap);
}

.container h1 {
  font-size: var(--container-h1);
  line-height: 1.2;
}

.container h2 {
  font-size: var(--container-h2);
  line-height: 1.22;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr);
  align-items: stretch;
  gap: var(--container-gap);
  margin-bottom: var(--container-gap);
}

.content-box {
  display: block;
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  padding: var(--container-box-pad);
  font-size: var(--container-font);
}

.content {
  width: auto;
}

.sidebar {
  width: auto;
}

.content,
.sidebar {
  min-width: 0;
}

.content p {
  font-size: var(--container-font);
  color: #374151;
  line-height: var(--container-line);
  text-align: left;
}

.sidebar p {
  font-size: clamp(0.92rem, 0.28vw + 0.85rem, 1.02rem);
  color: #111827;
  line-height: clamp(1.35, 1vw + 1.05, 1.55);
  text-align: justify;
}

.content a,
.sidebar a {
  color: #2563eb;
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.content a:hover,
.sidebar a:hover {
  text-decoration: underline;
}

.content ul,
.content ol,
.sidebar ul {
  margin: 0 0 clamp(10px, 1vw, 14px) clamp(16px, 1.5vw, 22px);
  padding: 0;
  line-height: 1.6;
  color: #374151;
}

.contact-container {
  width: min(100%, 560px);
  margin: var(--container-gap) auto;
  padding: var(--container-form-pad);
  background-color: #ffffff;
  border: 1px solid #d1d5db;
}

.contact-container form {
  display: grid;
}

.contact-container label {
  display: block;
  margin-bottom: clamp(6px, 0.7vw, 10px);
  font-weight: 600;
  font-size: var(--container-font);
}

.contact-container input[type="text"],
.contact-container input[type="email"],
.contact-container select,
.contact-container textarea {
  width: 100%;
  padding: clamp(10px, 1vw, 14px);
  margin-bottom: var(--container-gap);
  border: 1px solid #e5e7eb;
  font: inherit;
  font-size: var(--container-font);
}

.choice-group {
  margin: 0 0 var(--container-gap);
  padding: clamp(12px, 1.3vw, 18px) clamp(14px, 1.6vw, 20px);
  border: 1px solid #e5e7eb;
}

.choice-group legend {
  padding: 0 8px;
  font-weight: 600;
}

.contact-container .choice-option {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: clamp(8px, 1vw, 12px);
  margin-bottom: clamp(8px, 0.9vw, 12px);
  font-weight: 400;
}

.contact-container .choice-option:last-child {
  margin-bottom: 0;
}

.contact-container .choice-option input {
  flex: 0 0 auto;
  width: auto;
  margin: 0;
}

.contact-container button {
  background-color: #2563eb;
  color: #ffffff;
  border: none;
  padding: clamp(10px, 1vw, 12px) clamp(16px, 2vw, 24px);
  font-size: var(--container-font);
  cursor: pointer;
}

/* Yeni yapi: about + interests */
.wrapper {
  width: min(1100px, 100%);
  min-height: 100vh;
  height: auto;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  background: #f8fafc;
}

.navbar {
  height: 10vh;
  padding: 0 2vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0f172a;
  color: #ffffff;
}

.logo {
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 1rem;
}

.nav-links a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  padding: 0.4rem 0.55rem;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: #2563eb;
  outline: none;
}

.hero {
  height: 30vh;
  padding: 1.4vh 2vw;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: stretch;
  gap: 1.4rem;
}

.hero-copy,
.hero-visual {
  border: 1px solid #cbd5e1;
  background: #ffffff;
}

.hero-copy {
  flex: 1 1 60%;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.7rem;
  min-width: 0;
}

.hero-copy p {
  line-height: 1.4;
}

.hero-btn {
  width: fit-content;
  padding: 0.55rem 0.9rem;
  background: #1d4ed8;
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
}

.hero-btn:hover,
.hero-btn:focus-visible {
  background: #1e40af;
  outline: none;
}

.hero-visual {
  flex: 0 1 36%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #dbeafe, #e0f2fe);
  color: #1e3a8a;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.cards-section {
  min-height: 30vh;
  height: auto;
  padding: 1.4vh 2vw;
  display: flex;
  flex-wrap: wrap;
  gap: 1vh 1vw;
  align-content: flex-start;
}

.info-card {
  flex: 1 1 calc((100% - 2vw) / 3);
  min-width: 180px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  padding: 0.8rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.4rem;
  min-height: 0;
}

.info-card p {
  line-height: 1.35;
}

.grow-recap {
  height: 20vh;
  padding: 1.4vh 2vw;
  display: flex;
  align-items: stretch;
  gap: 1vw;
}

.grow-box {
  flex-basis: 0;
  border: 1px solid #bfdbfe;
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  text-align: center;
  padding: 0.7rem;
}

.grow-1 {
  flex-grow: 1;
}

.grow-2 {
  flex-grow: 2;
}

.grow-3 {
  flex-grow: 1;
}

.footer {
  height: 10vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #0f172a;
  color: #ffffff;
  padding: 0 1rem;
  text-align: center;
}

.container .footer {
  margin-left: calc(var(--container-pad) * -1);
  margin-right: calc(var(--container-pad) * -1);
  height: clamp(60px, 10vh, 92px);
}

/* Duyuru sayfasi */
.announcement-shell {
  position: relative;
}

.announcement-header {
  background: linear-gradient(120deg, #ffffff, #eef4ff);
}

.announcement-main {
  display: grid;
  grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
  gap: clamp(14px, 1.6vw, 24px);
  margin-bottom: var(--container-gap);
}

.promo-card {
  position: relative;
  min-height: 340px;
  padding: clamp(22px, 2.2vw, 34px);
  border: 1px solid #c7d2fe;
  background: linear-gradient(150deg, #eff6ff 0%, #dbeafe 45%, #ffffff 100%);
  overflow: hidden;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.promo-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(37, 99, 235, 0.16);
}

.promo-card h2,
.promo-card p,
.promo-action {
  position: relative;
  z-index: 3;
}

.promo-card p {
  max-width: 58ch;
  line-height: 1.5;
  margin-bottom: 18px;
}

.promo-glow {
  position: absolute;
  top: -70px;
  right: -40px;
  width: 230px;
  height: 230px;
  border-radius: 0;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35), rgba(59, 130, 246, 0));
  z-index: 1;
  animation: glowPulse 4s ease-in-out infinite;
}

.promo-ribbon {
  position: absolute;
  bottom: -40px;
  left: -30px;
  width: 220px;
  height: 120px;
  border-radius: 0;
  background: rgba(29, 78, 216, 0.2);
  z-index: 2;
}

.promo-action {
  display: inline-block;
  text-decoration: none;
  background: #1d4ed8;
  color: #ffffff;
  font-weight: 700;
  padding: 0.62rem 1rem;
  border-radius: 0;
  transition: transform 180ms ease, background-color 180ms ease;
}

.promo-action:hover,
.promo-action:focus-visible {
  cursor: pointer;
  background: #1e40af;
  transform: translateY(-1px);
  outline: none;
}

.promo-action:active {
  transform: translateY(1px) scale(0.98);
}

.promo-chip {
  position: absolute;
  display: inline-block;
  text-decoration: none;
  color: #0f172a;
  background: #ffffff;
  border: 1px solid #bfdbfe;
  border-radius: 0;
  padding: 0.42rem 0.72rem;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 5;
  transition: transform 170ms ease, box-shadow 170ms ease;
}

.chip-date {
  top: 20px;
  right: 136px;
  z-index: 6;
}

.chip-quota {
  top: 50px;
  right: 58px;
  z-index: 7;
}

.chip-level {
  bottom: 26px;
  right: 24px;
}

.promo-chip:hover,
.promo-chip:focus-visible {
  cursor: pointer;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.14);
  outline: none;
}

.announcement-info {
  background: #ffffff;
  border: 1px solid #d1d5db;
  padding: clamp(14px, 1.5vw, 22px);
  line-height: 1.55;
}

.fixed-helper {
  position: fixed;
  right: 18px;
  bottom: 20px;
  z-index: 999;
  text-decoration: none;
  background: #0f172a;
  color: #ffffff;
  border-radius: 0;
  padding: 0.72rem 0.95rem;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.22);
  transition: transform 160ms ease, background-color 160ms ease;
}

.fixed-helper:hover,
.fixed-helper:focus-visible {
  cursor: pointer;
  background: #1d4ed8;
  transform: translateY(-2px);
  outline: none;
}

.fixed-helper:active {
  transform: scale(0.96);
}

.home-access-link {
  display: inline-block;
  margin-top: 4px;
  color: #1d4ed8;
  font-weight: 700;
  text-decoration: none;
  transition: color 160ms ease, transform 160ms ease;
}

.home-access-link:hover,
.home-access-link:focus-visible {
  cursor: pointer;
  color: #1e40af;
  transform: translateX(2px);
  outline: none;
}

@keyframes glowPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.85;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.55;
  }
}

.footer p {
  font-size: 0.95rem;
  margin: 0;
}

@media (max-width: 860px) {
  .nav-links {
    gap: 0.4rem;
    font-size: 0.9rem;
  }

  .container {
    --container-pad: clamp(10px, 2.8vw, 14px);
  }

  .container .navbar {
    height: auto;
    min-height: 64px;
    padding: clamp(8px, 2vw, 12px);
    align-items: center;
    flex-wrap: wrap;
    gap: clamp(8px, 1.6vw, 10px);
  }

  .container .logo {
    font-size: clamp(1rem, 0.8vw + 0.82rem, 1.08rem);
  }

  .container .nav-links {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: clamp(0.35rem, 1.4vw, 0.5rem);
  }

  .layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(10px, 2vw, 12px);
  }

  .content,
  .sidebar {
    width: 100%;
    margin: 0;
  }

  .contact-container {
    width: 100%;
    margin: clamp(10px, 2vw, 16px) 0;
    padding: clamp(12px, 2.4vw, 16px);
  }

  .contact-container button {
    width: 100%;
  }

  .container .footer {
    height: auto;
    min-height: 56px;
    padding: clamp(10px, 2.2vw, 12px);
  }

  .hero-copy,
  .hero-visual,
  .info-card,
  .grow-box {
    font-size: 0.9rem;
  }

  .announcement-main {
    grid-template-columns: 1fr;
  }

  .promo-card {
    min-height: 360px;
    padding-top: 86px;
  }

  .chip-date {
    top: 18px;
    left: 16px;
    right: auto;
  }

  .chip-quota {
    top: 18px;
    left: 186px;
    right: auto;
  }

  .chip-level {
    top: 54px;
    left: 16px;
    right: auto;
    bottom: auto;
  }
}

@media (max-width: 520px) {
  .container .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0.3rem;
  }

  .container .nav-links li {
    width: 100%;
  }

  .container .nav-links a {
    display: block;
    text-align: center;
  }

  .container header,
  .content-box,
  .contact-container,
  .choice-group {
    padding: clamp(10px, 3vw, 12px);
  }

  .contact-container .choice-option {
    align-items: flex-start;
    line-height: 1.35;
  }

  .contact-container .choice-option input {
    margin-top: 3px;
  }

  .fixed-helper {
    right: 10px;
    bottom: 12px;
    font-size: 0.86rem;
    padding: 0.58rem 0.78rem;
  }

  .promo-card {
    min-height: 420px;
    padding-top: 116px;
  }

  .chip-date {
    top: 14px;
    left: 12px;
  }

  .chip-quota {
    top: 14px;
    left: 148px;
  }

  .chip-level {
    top: 52px;
    left: 12px;
  }
}

@media (max-width: 360px) {
  .container {
    --container-pad: clamp(8px, 2.8vw, 10px);
  }

  .container .logo {
    font-size: 0.95rem;
  }
}