/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: 'Archivo', sans-serif;
  background: #f9f9f9;
  color: #222;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header and Nav */
header {
  background: #F25C05;
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.1);
}

.grid-layout {
  max-width: 1200px;
  margin: 0 auto;
}

nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  height: 70px;
  gap: 24px;
}

nav .logo {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 12px;
  object-fit: contain;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 28px;
  height: 24px;
  cursor: pointer;
}

.mobile-menu div {
  width: 100%;
  height: 3px;
  background-color: white;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 32px;
  font-weight: 500;
}

.nav-list li a {
  color: white;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-list li a:hover,
.nav-list li a:focus {
  background-color: rgba(255, 255, 255, 0.2);
  outline: none;
  color: #ffe0e8;
}

/* Main content layout */
main {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  padding: 40px 16px 80px;
  background: #f9f9f9;
}

/* Portfolio Section Container */
#portfolio {
  width: 100%;
  max-width: 1200px;
}

/* Search input */
.search-input {
  width: 100%;
  max-width: 600px;
  display: block;
  margin: 0 auto 40px auto;
  padding: 12px 20px;
  font-size: 16px;
  border: 2px solid #F25C05;
  border-radius: 16px;
  transition: border-color 0.3s ease;
  outline-offset: 2px;
}

.search-input:focus {
  border-color: #d12849;
}

/* Portfolio items container */
.portfolio-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Title */
.portfolio-items > h1 {
  text-align: center;
  font-weight: 700;
  font-size: 2.8rem;
  margin-bottom: 32px;
  color: #222;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Portfolio item cards */
.portfolio-item {
  background: rgba(255 255 255 / 0.85);
  border-radius: 20px;
  box-shadow: 0 8px 16px rgb(0 0 0 / 0.1);
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover,
.portfolio-item:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgb(0 0 0 / 0.15);
  outline: none;
}

/* Project title */
.portfolio-item h2 {
  font-weight: 600;
  font-size: 1.5rem;
  color: #F25C05;
}

/* Project image */
.portfolio-item img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgb(0 0 0 / 0.08);
  object-fit: cover;
  align-self: center;
}

/* Description */
.portfolio-item p {
  font-size: 1rem;
  color: #444;
  max-width: 600px;
}

/* Buttons container */
.portfolio-item .vermais,
.portfolio-item .btgithub {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 18px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 14px;
  min-width: 120px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  user-select: none;
}

/* View live button */
.vermais {
  background: #F25C05;
  color: white;
  border: 2px solid #F25C05;
  margin-right: 12px;
}

.vermais:hover,
.vermais:focus {
  background: white;
  color: #F25C05;
  border-color: #F24405;
  outline: none;
}

/* GitHub button */
.btgithub {
  background: transparent;
  color: #8250df;
  border: 2px solid #8250df;
}

.btgithub:hover,
.btgithub:focus {
  background: #8250df;
  color: white;
  outline: none;
}

/* Pagination */
.portfolio-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 48px;
  gap: 16px;
}

.portfolio-pagination button {
  background: #F25C05;
  color: white;
  font-weight: 600;
  border: none;
  padding: 12px 18px;
  border-radius: 16px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease;
}

.portfolio-pagination button:disabled {
  background-color: #F2CAA7;
  cursor: not-allowed;
}

.portfolio-pagination button:hover:not(:disabled),
.portfolio-pagination button:focus:not(:disabled) {
  background-color: #d12849;
  outline: none;
}

.pagination-list {
  list-style: none;
  display: flex;
  gap: 8px;
}

.pagination-list .page-btn {
  background: transparent;
  border: 2px solid #F25C05;
  color: #F25C05;
  padding: 8px 12px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.pagination-list .page-btn.active,
.pagination-list .page-btn:hover,
.pagination-list .page-btn:focus {
  background: #F25C05;
  color: white;
  outline: none;
}

/* Responsive adjustments */

/* Mobile <= 640px */
@media (max-width: 640px) {
  nav {
    justify-content: space-between;
    padding: 0 8px;
  }

  .nav-list {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #F25C05;
    flex-direction: column;
    gap: 0;
    padding-top: 32px;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1001;
  }

  .nav-list.open {
    transform: translateX(0);
  }

  .nav-list li {
    margin: 0;
  }

  .nav-list li a {
    color: white;
    font-size: 1.2rem;
    padding: 16px 24px;
    border-bottom: 1px solid rgba(255 255 255 / 0.1);
  }

  .mobile-menu {
    display: flex;
  }

  main {
    padding: 24px 12px 60px;
  }

  .portfolio-item {
    padding: 16px 20px;
  }

  .portfolio-item h2 {
    font-size: 1.3rem;
  }

  .portfolio-item img {
    max-width: 100%;
  }

  .search-input {
    max-width: 100%;
    margin-bottom: 24px;
  }
}

/* Tablet 641px - 1024px */
@media (min-width: 641px) and (max-width: 1024px) {
  nav {
    padding: 0 16px;
  }

  main {
    padding: 32px 20px 72px;
  }
  
  .portfolio-item {
    flex-direction: row;
    gap: 32px;
    align-items: center;
  }

  .portfolio-item img {
    max-width: 220px;
    flex-shrink: 0;
  }

  .portfolio-item p {
    max-width: none;
  }
}

/* Desktop 1025px and up */
@media (min-width: 1025px) {
  main {
    padding: 48px 16px 96px;
  }

  .portfolio-item {
    flex-direction: row;
    gap: 48px;
    align-items: center;
  }

  .portfolio-item img {
    max-width: 320px;
  }

  .portfolio-item p {
    max-width: 600px;
  }
}