/* React 프로젝트의 index.css / Tailwind 설정을 단순화한 CSS */

:root {
  --color-background: #000000;
  --color-background-secondary: #121212;
  --color-background-surface: #1a1a1a;
  --color-foreground: #ffffff;
  --color-foreground-secondary: #cccccc;
  --color-foreground-muted: #999999;
  --color-accent: #f28c2a;
  --color-accent-dark: #d9781f;
  --color-accent-hover: #e07f22;
  --color-border: #333333;
  --font-sans: "Lato", "NanumBarunGothic", sans-serif;
}

* {
  box-sizing: border-box;
  border-color: var(--color-border);
}

html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-foreground);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.4;
  margin: 0;
}

p {
  margin: 0;
}

.bg-background {
  background-color: var(--color-background);
}

.bg-background-secondary {
  background-color: var(--color-background-secondary);
}

.bg-background-surface {
  background-color: var(--color-background-surface);
}

.text-foreground {
  color: var(--color-foreground);
}

.text-foreground-secondary {
  color: var(--color-foreground-secondary);
}

.text-foreground-muted {
  color: var(--color-foreground-muted);
}

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

.max-w-container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.min-h-screen {
  min-height: 100vh;
}

.pt-32 {
  padding-top: 8rem;
}

.pb-32 {
  padding-bottom: 8rem;
}

.py-32 {
  padding-top: 8rem;
  padding-bottom: 8rem;
}

.px-8 {
  padding-left: 2rem;
  padding-right: 2rem;
}

.mt-16 {
  margin-top: 4rem;
}

.mb-16 {
  margin-bottom: 4rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-size: 1rem;
  border-radius: 0;
  border: none;
  cursor: pointer;
  background-color: var(--color-accent);
  color: #000;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-foreground-secondary);
  border: 1px solid var(--color-border);
}

.btn-outline-active {
  background-color: var(--color-accent);
  color: #000;
  border: none;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.header-inner {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-desktop {
  display: none;
}

.nav-link {
  color: var(--color-foreground-secondary);
  margin-left: 2rem;
  font-size: 0.95rem;
  cursor: pointer;
  transition: color 0.2s ease;
  background: none;
  border: none;
  padding: 0;
  font: inherit;
}

.nav-link:hover,
.nav-link-active {
  color: var(--color-foreground);
}

.nav-mobile-toggle {
  display: block;
  background: none;
  border: none;
  color: var(--color-foreground);
  font-size: 2rem;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
}

.nav-mobile-menu {
  display: none;
  position: absolute;
  top: 80px;
  left: 0;
  right: 0;
  border-top: 1px solid var(--color-border);
  background-color: rgba(0, 0, 0, 0.96);
  padding: 1.5rem 0 2rem;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}

.nav-mobile-menu.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-mobile-link {
  display: block;
  padding: 0.9rem 2rem;
  color: var(--color-foreground-secondary);
  background: none;
  border: none;
  text-align: left;
  font: inherit;
  cursor: pointer;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-mobile-link:hover {
  color: var(--color-foreground);
}

.hero {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}

.hero video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.5), #000);
}

.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
}

.hero-title {
  font-size: 2rem;
  margin-bottom: 2rem;
}

.hero-text {
  font-size: 1.1rem;
  color: var(--color-foreground-secondary);
  margin-bottom: 3rem;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.grid-portfolio {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-portfolio {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.card {
  background-color: var(--color-background-surface);
  overflow: hidden;
  cursor: pointer;
  border: none;
  display: block;
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  padding-top: 75%;
  overflow: hidden;
}

.card-image-wrapper img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card:hover .card-image-wrapper img {
  transform: scale(1.05);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover .card-overlay {
  opacity: 1;
}

.card-body {
  padding: 1.5rem;
}

.portfolio-back-btn {
  position: fixed;
  top: 96px;
  left: 2rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--color-foreground);
  cursor: pointer;
}

.portfolio-back-btn:hover {
  color: var(--color-accent);
}

.portfolio-hero {
  position: relative;
  width: 100%;
  height: 60vh;
  overflow: hidden;
}

.portfolio-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.3), #000);
}

.gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }

  .nav-mobile-toggle {
    display: none;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-text {
    font-size: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3rem;
  }
}