.whatsapp-button {
  background-color: #25d366;
  color: #fff;
  font-size: 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 30px;
  padding: 12px 24px;
  transition: background-color 0.3s ease, transform 0.3s ease;
  text-align: center;
}

.whatsapp-button:hover {
  background-color: #128C7E;
  transform: translateY(-3px);
}

.call-button {
  display: inline-block;
  background-color: #007bff;
  color: #fff;
  font-size: 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 30px;
  padding: 12px 24px;
  transition: background-color 0.3s ease, transform 0.3s ease;
  text-align: center;
}

.call-button:hover {
  background-color: #177fbb;
  transform: translateY(-3px);
}

.section-title-container {
  text-align: center;
  margin-bottom: 20px;
}

.section-title {
  color: #333;
  font-size: 24px;
  margin: 0;
}

.skills-container {
  max-width: 100%;
  margin: 0 auto;
  padding: 20px 0;
  display: flex;
  justify-content: center;
}

.skill-category {
  width: 50%;
  text-align: center;
}

.skill-list {
  list-style-type: none;
  padding-left: 0;
}

.skill-category-title {
  color: #555;
  font-weight: bold;
  margin-bottom: 10px;
}

.skill {
  margin-bottom: 5px;
}

.skill:hover {
  color: #007bff;
  cursor: pointer;
}

.skill-category {
  width: calc(50% - 0px);
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}

.skill-category:hover {
  transform: scale(1.1);
}

.skill-category-title {
  color: #555;
  font-weight: bold;
  margin-bottom: 20px;
}

.skill-list {
  list-style-type: none;
  padding-left: 0;
}

.skill {
  margin-bottom: 5px;
}

.skill:hover {
  color: #007bff;
  cursor: pointer;
}

:root {
  --white: hsla(0, 0%, 100%, 1);
  --white_a8: hsla(0, 0%, 100%, 0.08);
  --white_a12: hsla(0, 0%, 100%, 0.12);
  --cultured: hsla(220, 20%, 97%, 1);
  --snow: hsla(345, 57%, 97%, 1);
  --manatee: hsla(219, 10%, 62%, 1);
  --black-coral: hsla(220, 12%, 43%, 1);
  --cadet-blue-crayola_a20: hsla(222, 23%, 71%, 0.2);
  --cinnamon-satin: hsla(344, 53%, 62%, 1);
  --raisin-black: hsla(216, 14%, 14%, 1);
  --raisin-black_a6: hsla(216, 14%, 14%, 0.06);
  --gunmetal: hsla(214, 15%, 21%, 1);
  --charcoal: hsla(219, 22%, 26%, 1);
  --ff-manrope: 'Manrope', sans-serif;
  --fs-1: calc(2.7rem + 1.38vw);
  --fs-2: calc(2.6rem + .66vw);
  --fs-3: calc(2.6rem + .24vw);
  --fs-4: 1.9rem;
  --fs-5: 1.8rem;
  --fs-6: 1.7rem;
  --fs-7: 1.5rem;
  --fs-8: 1.4rem;
  --fw-700: 700;
  --section-padding: 90px;
  --shadow-1: 0 0 20px hsla(216, 14%, 14%, 0.05);
  --shadow-2: 0 4px 28px hsla(216, 14%, 14%, 0.07);
  --radius-circle: 50%;
  --radius-pill: 100px;
  --radius-8: 8px;
  --radius-6: 6px;
  --transition-1: 0.25s ease;
  --transition-2: 0.5s ease;
  --transition-3: 0.3s ease-in-out;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

li { list-style: none; }

a,
img,
span,
button,
ion-icon { display: block; }

a {
  color: inherit;
  text-decoration: none;
}

img { height: auto; }

input,
button,
textarea {
  background: none;
  border: none;
  font: inherit;
  color: #D49B54;
}

input,
textarea { width: 100%; }

button { cursor: pointer; }

ion-icon { pointer-events: none; }

html {
  font-family: var(--ff-manrope);
  font-size: 10px;
  scroll-behavior: smooth;
}

body {
  background-color: #EEEEEE; 
  color: var(--black-coral);
  font-size: 1.7rem;
  line-height: 1.7;
}


body.nav-active { overflow: hidden; }

::-webkit-scrollbar { width: 10px; }

::-webkit-scrollbar-track { background-color: hsl(0, 0%, 98%); }

::-webkit-scrollbar-thumb { background-color: hsl(0, 0%, 80%); }

::-webkit-scrollbar-thumb:hover { background-color: hsl(0, 0%, 70%); }

.container { padding-inline: 16px; }

.social-list {
  display: flex;
  margin-left: auto;
  gap: 12px;
}

.social-link {
  font-size: 2rem;
  transition: var(--transition-1);
}

.social-link:is(:hover, :focus-visible) { transform: translateY(-3px); }

.section { padding-block: var(--section-padding); }

.w-100 { width: 100%; }

.h1,
.h2,
.h3,
.h4 {
  color: var(--charcoal);
  line-height: 1;
}

.h1 { font-size: var(--fs-1); }

.h2 { font-size: var(--fs-2); }

.h3 { font-size: var(--fs-3); }

.h4 { font-size: var(--fs-4); }

.btn {
  color: var(--cinnamon-satin);
  font-size: var(--fs-6);
  font-weight: var(--fw-700);
  border: 2px solid var(--cinnamon-satin);
  max-width: max-content;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  transition: var(--transition-1);
  will-change: transform;
}

.btn:is(:hover, :focus-visible) { transform: translateY(-4px); }

.btn-primary,
.btn-secondary:is(:hover, :focus-visible) {
  background-color: var(--cinnamon-satin);
  color: var(--white);
}

.section-text { font-size: var(--fs-5); }

.section-title { margin-block-end: 16px; }

.grid-list {
  display: grid;
  gap: 30px;
}

[data-reveal] {
  opacity: 0;
  transition: 0.35s ease;
}

[data-reveal="top"] { transform: translateY(-30px); }

[data-reveal="bottom"] { transform: translateY(60px); }

[data-reveal="left"] { transform: translateX(-30px); }

[data-reveal="right"] { transform: translateX(30px); }

[data-reveal].revealed {
  transform: translate(0);
  opacity: 1;
}

.header {
  position: absolute;
  top: 0;
  left: 0;
  background-color: var(--white);
  width: 100%;
  padding-block: 20px;
  box-shadow: var(--shadow-1);
  z-index: 4;
}

.header.active {
  position: fixed;
  animation: slideIn 0.5s ease forwards;
}

@keyframes slideIn {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(0); }
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-open-btn {
  font-size: 3.5rem;
  color: var(--gunmetal);
}

.navbar {
  position: fixed;
  top: 0;
  left: -300px;
  background-color: var(--raisin-black);
  color: var(--white);
  max-width: 300px;
  width: 100%;
  height: 100vh;
  padding: 30px;
  padding-block-end: 40px;
  display: flex;
  flex-direction: column;
  gap: 30px;
  z-index: 2;
  visibility: hidden;
  transition: var(--transition-3);
}

.navbar.active {
  visibility: visible;
  transform: translateX(300px);
}

.navbar-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-close-btn {
  background-color: var(--white_a8);
  color: var(--white);
  font-size: 2rem;
  padding: 6px;
  border-radius: var(--radius-circle);
  transition: var(--transition-1);
}

.nav-close-btn ion-icon { --ionicon-stroke-width: 50px; }

.nav-close-btn:is(:hover, :focus-visible) { background-color: var(--white_a12); }

.navbar-list { margin-block-end: auto; }

.navbar-link {
  font-weight: var(--fw-700);
  padding-block: 6px;
}

.contact-link { transition: var(--transition-1); }

.contact-link:is(:hover, :focus-visible) { color: var(--cinnamon-satin); }

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--raisin-black);
  pointer-events: none;
  opacity: 0;
  transition: var(--transition-1);
}

.overlay.active {
  pointer-events: all;
  opacity: 0.8;
}
.hero {
  padding-block-start: calc(var(--section-padding) + 50px);
  background-color: var(--cultured);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}


.hero:hover {
  background-color: #f0f0f5;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.7); 
}

.hero .container {
  display: grid;
  gap: 50px;
  transition: transform 0.3s ease;
}


.hero .container:hover {
  transform: scale(1.02); 
}

.hero-banner {
  position: sticky;
  max-width: max-content;
  margin-inline: auto;
 
}


.hero-banner .w-100 {
  mask-repeat: no-repeat;
  -webkit-mask-repeat: no-repeat;
  mask-position: center;
  -webkit-mask-position: center;
  mask-size: contain;
  -webkit-mask-size: contain;
  border-radius: 50%;

}


.hero-banner .w-100:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.hero .shape {
  position: absolute;
  bottom: 10%;
  right: 2%;
  filter: drop-shadow(var(--shadow-2));
  transition: filter 0.3s ease, transform 0.3s ease;
}

.hero .shape:hover {
  transform: rotate(10deg); 
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.2)); 
}

.hero-content {
  text-align: center;
  transition: transform 0.3s ease;
}


.hero-content:hover {
  transform: scale(1.02);
}

.hero .section-text {
  margin-block: 24px 36px;
  transition: color 0.3s ease;
}




.btn-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.about .wrapper {
  display: grid;
  gap: 50px;
  margin-block-end: 70px;
}

.progress-list .label-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block-end: 4px;
}

.progress-item:not(:last-child) { margin-block-end: 16px; }

.progress {
  background-color: var(--raisin-black_a6);
  height: 6px;
  width: 100%;
  border-radius: var(--radius-pill);

}

.progress-fill { height: inherit; }

.about-card { text-align: center; }

.about-card .card-icon {
  max-width: max-content;
  margin-inline: auto;
}

.about-card .card-title { margin-block: 16px 10px; }



.slider-container {
  position: relative;
  max-width: 100%;
  margin: auto;
  overflow: hidden;
}

.slider {
  display: flex;
  transition: transform 0.5s ease-in-out;
}

.slider-item {
  min-width: 100%;
  transition: transform 0.5s ease;
}



.slider-img {
  width: 100%;
  transition: transform 0.5s ease;
  border-radius: 8px;
}

.project-card {

  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.card-content {
  text-align: center;
  padding: 20px;
}

.card-title {
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.card-text {
  font-size: 1.9rem;
  margin-bottom: 15px;
}

.btn-text {
  font-size: 1.9rem;
  color: #007bff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.btn-text:hover {
  color: #0056b3;
}

.slider-controls {
  position: absolute;
  top: 50%;
  width: 100%;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
}

.prev-btn, .next-btn {
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  font-size: 2rem;
  padding: 10px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.prev-btn:hover, .next-btn:hover {
  background-color: rgba(0, 0, 0, 0.8);
}


.contact { padding-block-end: 0; }

.contact-card {
  background-color: var(--snow);
  padding: 32px;
  border-radius: var(--radius-8);
  display: grid;
  gap: 40px;
}

.contact .section-title { margin-block-start: 20px; }

.input-field {
  background-color: var(--white);
  color: var(--black-coral);
  font-size: var(--fs-7);
  padding: 14px 18px;
  border-radius: var(--radius-6);
  outline: none;
  margin-block-end: 20px;
}

.input-field::placeholder { color: var(--manatee); }

textarea.input-field {
  min-height: 120px;
  height: 120px;
  max-height: 240px;
  resize: vertical;
}

.footer { padding-block: 40px; }

.copyright { margin-block-end: 12px; }

.footer .social-link { color: var(--charcoal); }

@media (min-width: 575px) {
  .container {
    max-width: 540px;
    width: 100%;
    margin-inline: auto;
  }
  .project-card { --padding: 68px; }
  .contact-card { padding: 68px; }
}

@media (min-width: 768px) {
  .container { max-width: 720px; }
  .section-text { --fs-5: 1.7rem; }
  .about .grid-list { grid-template-columns: 1fr 1fr; }
  .project .title-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
  }
  .project .btn { min-width: max-content; }
  .contact .section-text { --fs-5: 1.8rem; }
  .input-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
  }
  .footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .copyright { margin-block-end: 0; }
}

@media (min-width: 992px) {
  :root {
    --section-padding: 120px;
  }
  .container { max-width: 960px; }
  .nav-open-btn,
  .navbar-top,
  .navbar .wrapper,
  .overlay { display: none; }
  .navbar,
  .navbar.active {
    all: unset;
    display: flex;
    flex-grow: 1;
  }
  .navbar-list {
    display: flex;
    gap: 36px;
    margin-inline: auto;
  }
  .navbar-link {
    color: var(--charcoal);
    transition: var(--transition-1);
  }
  .navbar-link:is(:hover, :focus-visible) { color: var(--cinnamon-satin); }
  .navbar .social-link {
    color: var(--charcoal);
    font-size: 1.8rem;
  }
  .header {
    top: 45px;
    max-width: 960px;
    left: 50%;
    transform: translateX(-50%);
    padding-inline: 16px;
    border-radius: var(--radius-8);
  }
  .header.active {
    top: 0;
    left: 0;
    max-width: unset;
    border-radius: 0;
  }
  .hero { padding-block-start: calc(var(--section-padding) + 80px); }
  .hero .container {
    grid-template-columns: 0.8fr 1fr;
    align-items: center;
    gap: 100px;
  }
  .hero-content { text-align: left; }
  .hero .btn-wrapper { justify-content: flex-start; }
  .about .wrapper {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .about .grid-list { grid-template-columns: repeat(4, 1fr); }
  .project .grid-list {
    grid-template-columns: 1fr 1fr;
    row-gap: 50px;
  }
  .project .grid-list > li:nth-child(-n+2) { grid-column: 1 / 3; }
  .project-card-1,
  .project-card-2 {
    flex-direction: row;
    align-items: flex-end;
  }
  :is(.project-card-1, .project-card-2) .card-content { width: 33.33%; }
  :is(.project-card-1, .project-card-2) .card-banner { width: 66.66%; }
  .project-card-1 .card-content { padding-block-end: var(--padding); }
  .project-card-2 .card-content { order: 1; }
  .contact-card {
    grid-template-columns: 0.8fr 1fr;
    align-items: center;
    gap: 90px;
  }
}

@media (min-width: 1200px) {
  .container,
  .header { max-width: 1140px; }
  .about .grid-list { gap: 50px; }
  .contact-card { gap: 150px; }
}

@media (min-width: 1400px) {
  .container,
  .header { max-width: 1320px; }
  .hero .container { grid-template-columns: 1fr 0.8fr; }
  .hero .section-text { --fs-5: 1.7rem; }
  .about .wrapper { gap: 100px; }
  .about .grid-list { gap: 60px; }
}

.footer {
  background-color: #1c1c1c;
  color: #fff;
  padding: 40px 0;
  text-align: center; 
}

.footer .container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.footer-top {
  width: 100%;
}

.footer-column {
  margin-bottom: 20px; 
}

.footer h3 {
  color: #f19c38;
  font-size: 20px;
  margin-bottom: 10px;
}

.footer-contact li {
  list-style: none;
  font-size: 16px;
  margin: 10px 0;
}

.footer-bottom p {
  margin-top: 20px;
  font-size: 14px;
  color: #fff;
}




@media (max-width: 768px) {
  .footer-top {
    flex-direction: column;
    align-items: center;
  }

  .footer-column {
    width: 100%;
    margin-bottom: 20px;
  }
}


.modal {
  display: none;
  position: fixed; 
  z-index: 9999; 
  left: 0;
  top: 0;
  width: 100%; 
  height: 100%; 
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px); 
  overflow-y: auto; 
  transition: all 0.3s ease;
}

.modal-content {
  background-color: #fefefe;
  margin: 10% auto;
  padding: 20px;
  border-radius: 8px;
  width: 80%;
  max-width: 800px;
  text-align: justify;
  position: relative;
  opacity: 0;
  transform: translateY(-100px);
  animation: modalOpen 0.5s forwards; 
}

@keyframes modalOpen {
  from {
    opacity: 0;
    transform: translateY(-100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.close {
  font-size: 32px;  
  font-weight: bold; 
  color: #333;       
  position: absolute;
  top: 20px;      
  right: 20px;     
  cursor: pointer;
  transition: all 0.3s ease; 
  background-color: transparent; 
  padding: 10px;
  border-radius: 50%; 
}

.close:hover {
  color: #ff4747; 
  background-color: rgba(255, 71, 71, 0.1); 
  transform: scale(1.2); 
}



.pdf-slider-container {
  overflow: hidden;
  width: 100%;
  margin: 0 auto;
  position: relative;
  padding: 20px 0;
}

.pdf-slider {
  display: flex;
  gap: 20px;
  overflow-x: scroll; 
  scroll-snap-type: x mandatory;
  padding: 20px 0;
}

.pdf-slider::-webkit-scrollbar {
  display: none;
}

.pdf-slider-item {
  flex: 0 0 auto;
  width: 250px; 
  height: 250px;
  cursor: pointer;
  text-align: center;
  transition: transform 0.3s ease-in-out;
  scroll-snap-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  padding: 15px;
  background-color: white;
  border-radius: 10px;
}

.pdf-slider-item:last-child {
  margin-right: 0;
}

.pdf-slider-item:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.pdf-thumbnail {
  width: 100%;
  height: 180px;
  background-color: #f0f0f0;
  border-radius: 8px;
}

.pdf-slider-item p {
  margin-top: 10px;
  font-size: 1.1rem;
  color: #333;
}

@media screen and (max-width: 768px) {
  .pdf-slider-item {
    width: 50; 
    height: 250px; 
  }

  .pdf-thumbnail {
    height: 180px;
  }
}

.pdf-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.9); 
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.pdf-popup.active {
  display: flex;
}

.pdf-popup iframe {
  width: 90%; 
  height: 90%;
  border: none;
  border-radius: 10px;
}

@media screen and (max-width: 768px) {
  .pdf-popup iframe {
    width: 100%; 
    height: 100%;
  }
}



.thumbnail-container {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap; /* Küçük ekranlarda alt alta geçmesini sağlar */
}

.thumbnail {
  width: 100px; /* Varsayılan genişlik */
  height: 60px; /* Varsayılan yükseklik */
  object-fit: cover;
  cursor: pointer;
  border-radius: 5px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.thumbnail:hover {
  transform: scale(1.1);
  opacity: 0.8;
}

/* Küçük ekranlar için */
@media (max-width: 768px) {
  .thumbnail-container {
    overflow-x: auto; /* Küçük ekranlarda yatay kaydırma */
    justify-content: flex-start;
    padding: 10px;
    white-space: nowrap; /* Resimlerin satır içine sığmasını sağlar */
  }

  .thumbnail {
    width: 80px; /* Küçük ekranlarda boyutu küçült */
    height: 50px;
  }
}

/* Çok küçük ekranlar (mobil) için */
@media (max-width: 480px) {
  .thumbnail {
    width: 60px;
    height: 40px;
  }
}