/* ============================================
   Lider Metal Footer - Görsele Sadık
   ============================================ */

.lider-metal-footer {
  font-family: "Poppins", sans-serif;
  color: #ffffff;
  position: relative;
  z-index: 2;
  margin-top: -8rem;
  background: transparent;
  border-radius: 40px 0 0 0;
  padding:  1.5rem 0 3.5rem  ;
}

.footer-main {
 background: rgba(46, 75, 132, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 40px 0 0 0;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  overflow: hidden;
}

.footer-content {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 2rem;
  padding: 3rem 1.5rem 0;
}

/* Footer Brand (Logo + Açıklama) */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  background: transparent;
  border-radius: 8px;
  padding: 1rem 1.1rem;
  /* box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2); */
}

.brand-logo-img {
  max-width: 140px;
  height: auto;
  margin-bottom: 0.3rem;
  filter: brightness(0) invert(1);
}

.brand-line {
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  margin-bottom: 0.3rem;
}

.brand-description {
  font-size: 12px;
  font-weight: 300;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  text-align: left;
}

/* Footer Columns - SHADOW GERİ */
.footer-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  padding: 0;
}

.column {
  background: #31508C;
  border-radius: 8px;
  padding: 1rem 1.1rem;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.column:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.column h3 {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 0.8rem 0;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.column h3:hover {
  color: #e0e0ff;
}

.column h3::after {
  display: none;
}

.column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.column ul li {
  margin-bottom: 0.5rem;
}

.column a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  font-weight: 300;
  line-height: 1.5;
  text-decoration: none;
  display: block;
  transition: all 0.3s ease;
}

.column a:hover {
  color: #ffffff;
  transform: translateX(2px);
}

/* Projeler Column - H3'ler Dikey */
.projects-column h3 {
  display: block;
  margin-bottom: 0.7rem;
  font-size: 14px;
}

.projects-column h3:last-child {
  margin-bottom: 0;
}

.projects-column h3 a {
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
}

.projects-column h3 a:hover {
  color: #e0e0ff;
}

/* İletişim Column */
.contact-column {
  display: flex;
  flex-direction: column;
}

.contact-column h3 {
  margin-bottom: 1rem;
}

.contact-column ul li {
  margin-bottom: 0.6rem;
}

.contact-column a {
  font-size: 12px;
  font-weight: 400;
}

.contact-column ul li:first-child a {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

.contact-column ul li:nth-child(2) a {
  font-size: 13px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.95);
}

/* Social Icons */
.social-icons {
  margin-top: 1.2rem;
  display: flex;
  gap: 1rem;
}

.social-link {
  color: #ffffff;
  font-size: 18px;
  opacity: 0.85;
  transition: all 0.3s ease;
}

.social-link:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.social-icons i {
  font-size: 20px;
}

/* Footer Copyright */
.footer-copyright {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 1.5rem;
  font-size: 11px;
  background: #31508C;
  /* border-top: 1px solid rgba(255, 255, 255, 0.15); */
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
  border-radius: 0 0 8px 8px;
}

.footer-copyright p {
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
}

.copyright-links {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.copyright-links a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
  text-decoration: none;
  transition: all 0.3s ease;
}

.copyright-links a:hover {
  color: #ffffff;
}

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */

@media (max-width: 1199px) {
  .lider-metal-footer {
    border-radius: 35px 0 0 0;
  }
  
  .footer-content {
    grid-template-columns: 220px 1fr;
    gap: 1.8rem;
    padding: 2rem 1.5rem 1.3rem;
  }
  
  .footer-columns {
    gap: 1rem;
  }
  
  .brand-logo-img {
    max-width: 130px;
  }
  
  .column {
    padding: 0.9rem 1rem;
  }
}

/* TABLET - 768px - 991px */
@media (max-width: 991px) {
  .lider-metal-footer {
    margin-top: -8rem;
    border-radius: 30px 0 0 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 1.8rem;
    padding: 2rem 1.5rem 1.3rem;
  }
  
  .footer-brand {
    text-align: center;
    align-items: center;
    max-width: 350px;
    margin: 0 auto;
  }
  
  .brand-description {
    text-align: center;
  }
  
  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .column h3 {
    font-size: 14px;
  }
  
  .column a {
    font-size: 12px;
  }
  
  .footer-copyright {
    padding: 1rem 1.5rem;
  }
}

/* ============================================
   RESPONSIVE - MOBILE (ACCORDION)
   ============================================ */

@media (max-width: 767px) {
  .lider-metal-footer {
    margin-top: -6rem;
    border-radius: 25px 0 0 0;
    padding: 0.3rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.8rem 1.2rem 1.2rem;
  }
  
  .footer-brand {
    text-align: center;
    align-items: center;
  }
  
  .brand-logo-img {
    max-width: 120px;
  }
  
  .brand-description {
    font-size: 11px;
    text-align: center;
  }
  
  .footer-columns {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  /* Accordion - Kurumsal ve Ürünler için */
  .column:not(.projects-column):not(.contact-column) {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
  }
  
  .column:not(.projects-column):not(.contact-column).active {
    border-color: rgba(255, 255, 255, 0.2);
  }
  
  .column:not(.projects-column):not(.contact-column) h3 {
    cursor: pointer;
    position: relative;
    padding-right: 2.5rem;
    margin-bottom: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .column:not(.projects-column):not(.contact-column) h3::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
  }
  
  .column:not(.projects-column):not(.contact-column) h3:hover::after {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-50%) rotate(90deg);
  }
  
  .column:not(.projects-column):not(.contact-column) ul {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 0;
  }
  
  .column:not(.projects-column):not(.contact-column).active h3::after {
    content: "−";
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-50%) rotate(0deg);
  }
  
  .column:not(.projects-column):not(.contact-column).active ul {
    max-height: 500px;
    margin-top: 1rem;
  }
  
  /* Projeler ve İletişim her zaman açık */
  .projects-column,
  .contact-column {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .projects-column h3 {
    cursor: pointer;
    margin-bottom: 0.6rem;
    font-size: 13px;
  }
  
  .contact-column h3 {
    margin-bottom: 0.8rem;
    font-size: 14px;
  }
  
  .projects-column ul,
  .contact-column ul,
  .contact-column .social-icons {
    /* display: block !important; */
    max-height: none !important;
  }
  
  .footer-copyright {
    flex-direction: column;
    text-align: center;
    padding: 1rem 1.2rem;
    gap: 0.6rem;
  }
  
  .copyright-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* SMALL MOBILE - < 576px */
@media (max-width: 575px) {
  .lider-metal-footer {
    margin-top: -5rem;
    border-radius: 20px 0 0 0;
  }
  
  .footer-content {
    padding: 1.5rem 1rem 1rem;
    gap: 1.2rem;
  }
  
  .brand-logo-img {
    max-width: 110px;
  }
  
  .brand-description {
    font-size: 10px;
  }
  
  .footer-columns {
    gap: 0.8rem;
  }
  
  .column {
    padding: 0.8rem 0.9rem;
  }
  
  .column h3 {
    font-size: 13px;
  }
  
  .column a {
    font-size: 11px;
  }
  
  .contact-column ul li:first-child a {
    font-size: 14px;
  }
  
  .social-icons i {
    font-size: 18px;
  }
  
  .footer-copyright {
    font-size: 10px;
    padding: 0.8rem 1rem;
  }
}

/* Referanslar Section - Footer için padding */
.referanslar-section {
  padding-bottom: 200px !important;
}

@media (max-width: 1199px) {
  .referanslar-section {
    padding-bottom: 170px !important;
  }
}

@media (max-width: 991px) {
  .referanslar-section {
    padding-bottom: 150px !important;
  }
}

@media (max-width: 767px) {
  .referanslar-section {
    padding-bottom: 120px !important;
  }
}

@media (max-width: 575px) {
  .referanslar-section {
    padding-bottom: 100px !important;
  }
}