/* ========================================
   RESET & BASE STYLES
   ======================================== */
:root {
  --bg: #f5f5f5;
  --dark: #121212;
  --muted: #54595f;
  --primary-color: #4caf50;
  --card-radius: 12px;
  --shadow: 0 8px 30px rgba(2, 6, 23, 0.06);
  --font-title: "DM Sans", sans-serif;
  --font-body: "Lato", sans-serif;
}

/* Imported fonts */
@import url("https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&display=swap");

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

html {
  scroll-behavior: smooth;
}

html,
body {
  height: 100%;
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem;
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  top: 0;
  height: 80px;
  width: 100%;
  position: sticky;
  box-shadow: 1px 1px 10px rgba(0, 0, 0, 0.1);
  padding: 0 2rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.navbar .logo img {
  height: 40px;
}

.navbar-container {
  width: 100%;
  max-width: 1600px;
  display: flex;
  padding: 0 2rem;
  justify-content: space-between;
  align-items: center;
}

.navbar-container .navbar-menu {
  display: flex;
  align-items: center;
  gap: 1.3rem;
  list-style: none;
}

.navbar-container .navbar-menu li a:not(.cta-link) {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  transition: color 0.3s ease;
  font-size: clamp(0.95rem, 1.2vw + 0.4rem, 1.125rem);
  letter-spacing: 0.2px;
  position: relative;
}

.navbar-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background: var(--dark);
  transition: all 0.3s ease-in-out;
}

.navbar-menu > li > .cta-link {
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  letter-spacing: 1px;
  background-color: var(--primary-color);
  padding: 0.6rem 1.4rem;
  border-radius: 40px;
  transition: all 0.3s ease;
}

.navbar-menu > li > .cta-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(76, 175, 80, 0.4);
}

.active-link {
  position: relative;
}

.active-link::before {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  height: 3px;
  width: 100%;
  border-radius: 2px;
  background: var(--primary-color);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-portfolio {
  background-color: #fff;
  padding: 3rem 2rem;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow);
  margin: 1.5rem 0 2rem;
}

.hero-portfolio .hero-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 0 0 0.8rem;
  line-height: 1.2;
}

.hero-portfolio .lead {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.6;
  margin: 0;
  max-width: 65ch;
}

/* ========================================
   FILTERS
   ======================================== */
.filters {
  margin: 2rem 0;
}

.filter-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
  transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
  font-family: var(--font-body);
}

.filter-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.filter-btn.active {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

/* ========================================
   GALLERY
   ======================================== */
.gallery {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.items-group {
  display: flex;
  gap: 2rem;
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow);
  transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
  opacity: 0;
  transform: translateY(40px);
}

.items-group:hover {
  box-shadow: 0 12px 40px rgba(2, 6, 23, 0.12);
  transform: translateY(-5px);
  
}

/* Image Container - Grid Layout */
.img-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  flex: 1;
  min-width: 0;
}

.img-container img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

.img-container img:hover {
  transform: scale(1.05) translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
  z-index: 2;
}

/* Meta Container */
.meta-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: 16px;
  border: 1px solid rgba(84, 89, 95, 0.2);
  background: #fafafa;
  padding: 2rem;
  max-width: 300px;
  height: fit-content;
}

.meta-container h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  line-height: 1.2;
  margin: 0 0 0.5rem;
  color: var(--dark);
  font-weight: 800;
  font-family: var(--font-title);
}

.meta-container p {
  color: var(--muted);
  font-size: 1.2rem;
  margin: 0 0 1rem;
}

.view-gallery-btn {
  background: transparent;
  border: none;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0.5rem 0;
  text-align: left;
  transition: all 0.3s ease;
  font-family: var(--font-body);
}

.view-gallery-btn:hover {
  transform: translateX(5px);
  color: #388e3c;
}

/* Hidden state for filtering */
.items-group.hidden {
  display: none;
}

/* ========================================
   LIGHTBOX
   ======================================== */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox-overlay.active {
  display: flex;
  opacity: 1;
}

#lb-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 2rem;
}

#lb-image {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

.lightbox-overlay.active #lb-image {
  opacity: 1;
  transform: scale(1);
}

/* Lightbox Buttons */
.lightbox-btn {
  position: fixed;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  z-index: 10000;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.1);
}

.lb-close {
  top: 2rem;
  right: 2rem;
}

.lb-prev {
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
}

.lb-next {
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
}

.lb-prev:hover,
.lb-next:hover {
  transform: translateY(-50%) scale(1.1);
}

/* Counter */
.lb-counter {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 0.6rem 1.5rem;
  border-radius: 999px;
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
  z-index: 10000;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 968px) {
  .items-group {
    flex-direction: column;
    gap: 1.5rem;
  }

  .meta-container {
    max-width: 100%;
  }

  .img-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar {
    backdrop-filter: none;
    background: white;
  }

  .navbar-container .navbar-menu {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 0;
    right: 0;
    gap: 1.7rem;
    width: 250px;
    height: 100vh;
    padding: 5rem 2rem;
    background: white;
    backdrop-filter: blur(10px);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  }

  .navbar-toggle {
    display: block;
    z-index: 101;
  }

  .navbar-container .navbar-menu.active {
    display: flex;
  }

  .navbar-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .navbar-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .navbar-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Mobile Slider */
  .img-container {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0;
    border-radius: var(--card-radius);
  }

  .img-container::-webkit-scrollbar {
    display: none;
  }

  .img-container img {
    min-width: 100%;
    scroll-snap-align: start;
    border-radius: 0;
    height: 300px;
  }

  .img-container img:first-child {
    border-radius: var(--card-radius) 0 0 var(--card-radius);
  }

  .img-container img:last-child {
    border-radius: 0 var(--card-radius) var(--card-radius) 0;
  }

  .lightbox-btn {
    width: 45px;
    height: 45px;
  }

  .lb-close {
    top: 1rem;
    right: 1rem;
  }

  .lb-prev {
    left: 1rem;
  }

  .lb-next {
    right: 1rem;
  }
  
}

@media (max-width: 480px) {
  .navbar-container {
    padding: 0 1rem;
  }

  .container {
    padding: 1rem;
  }

  .hero-portfolio {
    padding: 2rem 1.5rem;
  }

  .filter-row {
    gap: 0.5rem;
  }

  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }

  .items-group {
    padding: 1rem;
  }

  .meta-container {
    padding: 1.5rem;
    min-width: auto;
  }

  .lightbox-btn {
    width: 40px;
    height: 40px;
  }

  #lb-image {
    max-width: 95vw;
    max-height: 80vh;
  }

  .lb-counter {
    bottom: 1rem;
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
  }
}