/* --- Base Variables & Reset --- */
:root {
  --bg-main: #0c0d0f; /* Deep dark background */
  --bg-card: #15161a; /* Slightly lighter for cards/placeholders */
  --text-main: #ffffff;
  --text-muted: #9ca3af;
  --accent: #5eead4; /* Mint green */
  --accent-hover: #45c4b0;

  --font-sans: "Inter", sans-serif;
  --font-serif: "Playfair Display", serif;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent {
  color: var(--accent);
}

/* --- Navigation --- */
.navbar {
  padding: 32px 0;
  position: relative;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--text-main);
}

.btn-nav {
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px 16px;
  border-radius: 20px;
  color: var(--accent);
}

.btn-nav:hover {
  background: rgba(94, 234, 212, 0.1);
  color: var(--accent);
  border-color: var(--accent);
}

/* --- Hero Section --- */
.cs-hero {
  padding: 80px 0 60px;
}

.cs-category {
  color: var(--accent);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.cs-title {
  font-family: var(--font-serif);
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 24px;
  max-width: 800px;
}

.cs-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 48px;
}

.cs-meta {
  display: flex;
  gap: 64px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 32px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.meta-item strong {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.meta-item span {
  font-size: 1rem;
}

/* --- Placeholders for Images --- */
.image-placeholder {
  background-color: var(--bg-card);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.2);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: 500px;
  margin-bottom: 80px;
}

/* --- Content & Tech Stack Grid --- */
.cs-content {
  margin-bottom: 100px;
}

.cs-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 80px;
}

.cs-text h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 24px;
  color: var(--text-main);
}

.cs-text p {
  color: var(--text-muted);
  margin-bottom: 40px;
  font-size: 1.05rem;
}

.cs-tech {
  background: var(--bg-card);
  padding: 32px;
  border-radius: 16px;
  height: fit-content;
}

.cs-tech h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 24px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.action-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.btn-primary {
  background-color: var(--accent);
  color: #000;
  padding: 14px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.link-secondary {
  color: var(--text-main);
  text-align: center;
  font-size: 0.9rem;
}

.link-secondary:hover {
  color: var(--accent);
}

/* --- Gallery --- */
.cs-gallery {
  margin-bottom: 120px;
}

.cs-gallery h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 40px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.gallery-item .image-placeholder {
  height: 350px;
  margin-bottom: 16px;
}

.caption {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Footer Nav --- */
.cs-footer-nav {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 100px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.cs-footer-nav p {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.next-project-link {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
}

.next-project-link:hover {
  opacity: 0.8;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.8s ease-out,
    transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .cs-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .cs-meta {
    flex-direction: column;
    gap: 24px;
  }
  .cs-title {
    font-size: 2.5rem;
  }
}

/* Make images fill their placeholder containers perfectly */
.image-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Prevents the image from squishing/stretching */
  border-radius: inherit; /* Keeps the rounded corners from the parent div */
  display: block;
}