/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #0a0a0a;
  --color-bg-alt: #111111;
  --color-surface: #1a1a1a;
  --color-surface-hover: #222222;
  --color-border: #2a2a2a;
  --color-text: #f5f5f5;
  --color-text-muted: #888888;
  --color-text-dim: #555555;
  --color-primary: #22c55e;
  --color-primary-light: #4ade80;
  --color-primary-dark: #16a34a;
  --color-gradient-1: #22c55e;
  --color-gradient-2: #06b6d4;
  --nav-scrolled-bg: rgba(10, 10, 10, 0.85);
  --hero-glow-1: rgba(34, 197, 94, 0.08);
  --hero-glow-2: rgba(6, 182, 212, 0.05);
  --plant-gradient-1: rgba(34, 197, 94, 0.05);
  --plant-gradient-2: rgba(6, 182, 212, 0.05);
  --nav-mobile-bg: rgba(10, 10, 10, 0.98);
  --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

[data-theme="light"] {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f5f5;
  --color-surface: #ffffff;
  --color-surface-hover: #f0f0f0;
  --color-border: #e0e0e0;
  --color-text: #111111;
  --color-text-muted: #555555;
  --color-text-dim: #999999;
  --color-primary: #16a34a;
  --color-primary-light: #22c55e;
  --color-primary-dark: #15803d;
  --color-gradient-1: #16a34a;
  --color-gradient-2: #0891b2;
  --nav-scrolled-bg: rgba(255, 255, 255, 0.85);
  --hero-glow-1: rgba(22, 163, 74, 0.06);
  --hero-glow-2: rgba(8, 145, 178, 0.04);
  --plant-gradient-1: rgba(22, 163, 74, 0.05);
  --plant-gradient-2: rgba(8, 145, 178, 0.05);
  --nav-mobile-bg: rgba(255, 255, 255, 0.98);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Animations ===== */
[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  background: var(--nav-scrolled-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  z-index: 10;
}

.logo-img {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color 0.2s;
  letter-spacing: -0.01em;
}

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

.nav-cta {
  background: var(--color-primary);
  color: var(--color-bg) !important;
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 600 !important;
  transition: background 0.2s, transform 0.2s !important;
}

.nav-cta:hover {
  background: var(--color-primary-light) !important;
  transform: translateY(-1px);
}

/* ===== Nav Actions ===== */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-sun {
  display: none;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 10;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(34, 197, 94, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  padding: 6px 16px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 100px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-dim);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-dim), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 100px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all 0.25s var(--ease-out);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.3);
}

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

.btn-outline:hover {
  border-color: var(--color-text-muted);
  background: var(--color-surface);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* ===== Section Common ===== */
.section {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.section-desc {
  margin-top: 16px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* ===== About ===== */
.about {
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.about-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 40px 32px;
  transition: transform 0.3s var(--ease-out), border-color 0.3s;
}

.about-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.about-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.about-icon svg {
  width: 100%;
  height: 100%;
}

.about-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}


/* ===== Business ===== */
.business {
  background: var(--color-bg-alt);
}

.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.biz-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 40px 32px;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.biz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  opacity: 0;
  transition: opacity 0.3s;
}

.biz-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 197, 94, 0.3);
}

.biz-card:hover::before {
  opacity: 1;
}

.biz-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-border);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 16px;
  transition: color 0.3s;
}

.biz-card:hover .biz-number {
  color: var(--color-primary);
}

.biz-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.biz-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.biz-card li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.biz-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.5;
}

/* ===== Management ===== */
.management {
  background: var(--color-bg);
}

.plant-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.plant-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s var(--ease-out);
}

.plant-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 197, 94, 0.3);
}

.plant-img {
  aspect-ratio: 16 / 10;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.plant-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease-out);
}

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

.plant-info {
  padding: 24px;
}

.plant-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.plant-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.plant-detail {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

.plant-detail span {
  color: var(--color-text-dim);
}

.plant-detail strong {
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ===== Contact ===== */
.contact {
  background: var(--color-bg-alt);
  padding: 120px 0;
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 28px;
  padding: 64px;
}

.contact-text .section-title {
  text-align: left;
  margin-top: 12px;
}

.contact-text p {
  margin-top: 16px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.contact-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  flex-shrink: 0;
}

.contact-email {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-email-label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact-email-addr {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: color 0.2s;
}

.contact-email:hover .contact-email-addr {
  color: var(--color-primary-light);
}

/* ===== Footer ===== */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .biz-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .plant-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-inner {
    flex-direction: column;
    text-align: center;
    padding: 48px 32px;
  }

  .contact-text .section-title {
    text-align: center;
  }

  .contact-action {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    inset: 0;
    background: var(--nav-mobile-bg, rgba(10, 10, 10, 0.98));
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
  }

  .nav-cta {
    font-size: 1.1rem !important;
    padding: 12px 28px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 100px 24px 60px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .hero-desc br {
    display: none;
  }

  .section {
    padding: 80px 0;
  }

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

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

  .contact-inner {
    padding: 40px 24px;
  }

  .contact-text p br {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}