/* Google Font */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&display=swap');

/* Brand tokens */
:root {
  --kappa-teal: #1BA4C6;
  --kappa-teal-dark: #1584A0;
  --kappa-navy: #0A1A2F;
  --kappa-grey: #4A4A4A;
  --kappa-grey-soft: #7B8A90;
  --kappa-light: #F5F7F9;
  --kappa-light-alt: #EEF2F7;
  --kappa-white: #FFFFFF;
}

/* Global reset-ish */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  overflow-y: scroll;
}

/* Body & base */
body {
  font-family: 'Montserrat', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  color: var(--kappa-navy);
  background-color: var(--kappa-light);
}

/* Layout helpers */
.k-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.k-section {
  padding: 80px 0;
}

.k-section-sm {
  padding: 40px 0;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  color: var(--kappa-navy);
  margin-bottom: 16px;
}

h1 {
  font-size: 48px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 36px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 26px;
  line-height: 1.3;
}

p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--kappa-grey);
}

/* Small helper text */
.k-muted {
  font-size: 14px;
  color: var(--kappa-grey-soft);
}

/* Navigation */
.k-nav {
  padding: 14px 0;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid #E5EAF0;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.k-nav-logo {
  height: 50px;
}

.k-nav-links {
  list-style: none;
}

.k-nav-links li {
  display: inline-block;
  margin-left: 26px;
}

.k-nav-links a {
  color: var(--kappa-navy);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  position: relative;
  padding-bottom: 4px;
}

.k-nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--kappa-teal);
  transition: width 0.2s ease;
}

.k-nav-links a:hover {
  color: var(--kappa-teal);
}

.k-nav-links a:hover::after {
  width: 100%;
}

/* Make the first regular section align with the hero height */
section.k-section:first-of-type {
  padding-top: 100px;  /* same top padding as .k-hero */
}

/* Hero */
.k-hero {
  padding: 100px 0 80px;
  background: radial-gradient(circle at top left, rgba(27,164,198,0.20), transparent 55%),
              linear-gradient(to bottom, #FFFFFF 0%, #F6F8FB 80%);
}

.k-hero-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.k-hero-left {
  flex: 1 1 380px;
}

.k-hero-right {
  flex: 1 1 320px;
  text-align: right;
}

.k-hero h1 {
  margin-bottom: 12px;
}

.k-hero-sub {
  font-size: 20px;
  color: var(--kappa-grey-soft);
  margin-bottom: 20px;
  font-weight: 500;
}

.k-hero p {
  max-width: 520px;
}

.k-hero-img {
  max-width: 100%;
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.18);
}

/* Buttons */
.k-btn-primary,
.k-btn-secondary {
  display: inline-block;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  padding: 12px 28px;
  cursor: pointer;
  transition: all 0.22s ease;
}

.k-btn-primary {
  background-color: var(--kappa-teal);
  color: white;
  box-shadow: 0 10px 20px rgba(21,132,160,0.35);
  border: none;
}

.k-btn-primary:hover {
  background-color: var(--kappa-teal-dark);
  box-shadow: 0 12px 26px rgba(21,132,160,0.45);
  transform: translateY(-1px);
}

.k-btn-secondary {
  border: 2px solid var(--kappa-navy);
  color: var(--kappa-navy);
  background: transparent;
}

.k-btn-secondary:hover {
  background-color: var(--kappa-navy);
  color: white;
}

/* Cards */
.k-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}


.k-card {
  background: white;
  border-radius: 18px;
  padding: 26px;
  border: 1px solid #E4E9F2;
  box-shadow: 0 10px 25px rgba(15,30,60,0.05);
  transition: all 0.22s ease;
  position: relative;
  overflow: hidden;
}

.k-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 4px;
  width: 0;
  background: linear-gradient(to right, var(--kappa-teal), #36C0E2);
  transition: width 0.25s ease;
}

.k-card:hover::before {
  width: 100%;
}

.k-card:hover {
  box-shadow: 0 16px 35px rgba(15,30,60,0.12);
  transform: translateY(-3px);
}

.k-card h3 {
  margin-bottom: 10px;
}

/* Divider */
.k-divider {
  height: 3px;
  width: 64px;
  background: linear-gradient(to right, var(--kappa-teal), #36C0E2);
  border-radius: 999px;
  margin-bottom: 16px;
}

/* Lists */
.k-list {
  list-style: none;
  margin-top: 10px;
}

.k-list li {
  margin-bottom: 6px;
  padding-left: 18px;
  position: relative;
  font-size: 15px;
  color: var(--kappa-grey);
}

.k-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--kappa-teal);
  font-size: 18px;
  line-height: 1;
}

/* Alternating background for sections */
section:nth-of-type(odd).k-section {
  background: var(--kappa-light);
}

section:nth-of-type(even).k-section {
  background: #FFFFFF;
}

/* Footer */
.k-footer {
  background: var(--kappa-navy);
  color: white;
  text-align: center;
}

.k-footer p {
  color: white;
  font-size: 13px;
}


/* About page */
.k-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;  /* İKİ eşit kolon */
  gap: 40px;
  align-items: center;             /* Dikey hizalama */

}

.k-about-photo {
  max-width: 100%;
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.18);
}

/* Services page */
.k-service-tag {
  display: inline-block;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--kappa-teal-dark);
  margin-bottom: 6px;
}

/* Contact page */
.k-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.k-contact-form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--kappa-navy);
}

.k-contact-form input,
.k-contact-form textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #CCD4E0;
  margin-bottom: 14px;
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.k-contact-form input:focus,
.k-contact-form textarea:focus {
  outline: none;
  border-color: var(--kappa-teal);
  box-shadow: 0 0 0 3px rgba(27,164,198,0.25);
}

.k-contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

/* Responsive */
@media (max-width: 900px) {
  .k-hero-inner {
    flex-direction: column;
  }

  .k-hero-right {
    margin-top: 20px;
    text-align: left;
  }

  .k-two-col,
  .k-contact-grid {
    grid-template-columns: 1fr;
  }

  .nav-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (max-width: 600px) {
  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 26px;
  }

  .k-hero {
    padding: 80px 0 60px;
  }

  .k-nav-logo {
    height: 40px;
  }

  .k-card {
    padding: 20px;
  }

}

/* Lower the about photo slightly */
.k-about-photo-wrapper {
  margin-top: 40px;   /* Fotoğrafı aşağı kaydırır */
}