/* Link animal Inc. — corporate site */

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

:root {
  --color-bg: #efe4b1;
  --color-bg-alt: #e8db9e;
  --color-text: #3a3428;
  --color-text-muted: #787262;
  --color-text-light: #5c5548;
  --color-surface: rgba(255, 255, 255, 0.6);
  --color-surface-solid: #faf8f0;
  --color-border: rgba(120, 114, 98, 0.25);
  --color-accent: #5a5345;
  --color-accent-dark: #2c2820;
  --color-brand-navy: #2a3558;
  --color-brand-gold: #e5a82a;
  --font-sans: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Segoe UI", "Noto Sans KR", sans-serif;
  --header-height: 64px;
  --container-max: 1080px;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(58, 52, 40, 0.08);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  word-break: keep-all;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-dark);
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(239, 228, 177, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-image {
  display: block;
  width: auto;
  height: 36px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(120, 114, 98, 0.2);
  border-radius: 999px;
  box-shadow: 0 2px 12px rgba(58, 52, 40, 0.06);
  backdrop-filter: blur(6px);
}

.site-nav a {
  position: relative;
  padding: 8px 18px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-light);
  text-decoration: none;
  border-radius: 999px;
  white-space: nowrap;
  transition:
    color var(--transition),
    background var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.site-nav a:hover {
  color: var(--color-brand-navy);
  background: rgba(255, 255, 255, 0.75);
}

.site-nav a.is-active {
  color: #fff;
  background: linear-gradient(
    135deg,
    var(--color-brand-navy) 0%,
    #1e2844 100%
  );
  box-shadow: 0 2px 10px rgba(42, 53, 88, 0.28);
}

.site-nav a.is-active:hover {
  color: #fff;
  background: linear-gradient(
    135deg,
    #323f68 0%,
    var(--color-brand-navy) 100%
  );
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(120, 114, 98, 0.25);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.55);
  box-shadow: 0 2px 8px rgba(58, 52, 40, 0.06);
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(120, 114, 98, 0.35);
}

.nav-toggle[aria-expanded="true"] {
  background: var(--color-brand-navy);
  border-color: var(--color-brand-navy);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition:
    transform var(--transition),
    opacity var(--transition),
    background var(--transition);
}

.nav-toggle[aria-expanded="true"] span {
  background: #fff;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Page layout */

.page-main {
  flex: 1;
  padding-top: var(--header-height);
}

.page-header {
  padding: 48px 0 32px;
  background: linear-gradient(
    180deg,
    var(--color-bg) 0%,
    var(--color-bg-alt) 100%
  );
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--color-accent-dark);
}

.page-home .page-main {
  padding-top: 0;
}

.page-home .logo {
  display: none;
}

.page-home .header-inner {
  justify-content: flex-end;
}

/* Hero */

.hero {
  padding: calc(var(--header-height) + 72px) 0 80px;
  background: linear-gradient(
    180deg,
    var(--color-bg) 0%,
    var(--color-bg-alt) 100%
  );
}

.hero--home {
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--header-height));
  padding: calc(var(--header-height) + 48px) 0 64px;
}

.hero-inner {
  max-width: 720px;
}

.hero--home .hero-inner {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.hero-logo {
  display: block;
  width: min(480px, 90vw);
  height: auto;
  margin-bottom: 32px;
}

.hero--home .hero-logo {
  margin-left: auto;
  margin-right: auto;
}

.hero--home h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  margin-bottom: 24px;
}

.hero--home .hero-lead {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  margin: 0 auto;
  max-width: 520px;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(1.85rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-accent-dark);
}

.hero-lead {
  margin: 0 0 32px;
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 560px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: background var(--transition), color var(--transition),
    border-color var(--transition);
}

.btn-primary {
  background: var(--color-accent-dark);
  color: #fff;
  border: 2px solid var(--color-accent-dark);
}

.btn-primary:hover {
  background: #1a1712;
  border-color: #1a1712;
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent-dark);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-muted);
  color: var(--color-accent-dark);
}

/* Sections */

.section {
  padding: 64px 0 80px;
}

.section-header {
  margin-bottom: 40px;
}

.section-eyebrow {
  margin: 0 0 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.section h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 700;
  color: var(--color-accent-dark);
}

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

.about-content {
  max-width: 720px;
  margin-bottom: 48px;
}

.about-content p {
  margin: 0 0 16px;
  color: var(--color-text-light);
}

.about-content p:last-child {
  margin-bottom: 0;
}

.about-content strong {
  color: var(--color-text);
  font-weight: 600;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 600px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

.info-card,
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.info-card-title,
.service-card h3,
.service-card-title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-accent-dark);
}

.card-grid--about .info-card-title {
  min-height: 2.6em;
  line-height: 1.3;
}

.info-card p,
.service-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* Services */

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

.service-card--featured {
  margin-bottom: 24px;
  padding: 32px 28px;
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.service-card-body {
  max-width: 720px;
}

.service-badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-accent-dark);
  background: var(--color-bg);
  border-radius: 4px;
}

.service-badge--soon {
  color: var(--color-text-muted);
  background: rgba(120, 114, 98, 0.12);
}

.service-card--featured h3,
.service-card--featured .service-card-title {
  margin: 0 0 6px;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent-dark);
}

.service-name-en {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.service-tagline {
  margin: 0 0 16px !important;
  font-size: 1rem !important;
  font-style: italic;
  color: var(--color-text-muted) !important;
}

.service-card--featured > .service-card-body > p:not(.service-tagline) {
  margin-bottom: 20px;
  color: var(--color-text-light);
}

.service-features {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.service-feature {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: rgba(239, 228, 177, 0.45);
  border: 1px solid rgba(120, 114, 98, 0.18);
  border-radius: 10px;
}

.service-feature-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-brand-navy);
  letter-spacing: -0.02em;
}

.service-feature-desc {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--color-text-light);
}

@media (min-width: 640px) {
  .service-features {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .service-feature--wide {
    grid-column: 1 / -1;
  }
}

/* Contact */

.contact {
  background: var(--color-surface-solid);
  text-align: center;
}

.contact-inner {
  max-width: 480px;
}

.contact-inner p {
  margin: 0 0 16px;
  color: var(--color-text-light);
}

.contact-email {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-accent-dark);
}

.contact-email:hover {
  text-decoration: underline;
}

/* Footer */

.site-footer {
  padding: 28px 0 20px;
  background: var(--color-accent-dark);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.8rem;
  line-height: 1.5;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: block;
  width: min(160px, 52vw);
  height: auto;
  margin-bottom: 8px;
}

.footer-brand a {
  display: inline-block;
  text-decoration: none;
}

.footer-company {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
}

.footer-company-en {
  margin: 2px 0 0;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-info {
  margin: 0;
  display: grid;
  gap: 5px;
}

.footer-info-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 4px 12px;
}

.footer-info dt {
  margin: 0;
  font-weight: 500;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-info dd {
  margin: 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.82);
}

.footer-info a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-info a:hover {
  color: #fff;
}

.footer-copy {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.38);
}

@media (min-width: 768px) {
  .footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 32px;
    row-gap: 12px;
    align-items: start;
  }

  .footer-brand {
    grid-column: 1;
    grid-row: 1;
  }

  .footer-info {
    grid-column: 2;
    grid-row: 1;
  }

  .footer-copy {
    grid-column: 1 / -1;
    grid-row: 2;
    margin-top: 0;
  }
}

/* Mobile nav */

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: calc(var(--header-height) + 12px);
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 10px;
    background: rgba(250, 248, 240, 0.97);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(58, 52, 40, 0.14);
    transform: translateY(-12px) scale(0.98);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 0.25s ease,
      transform 0.25s ease,
      visibility 0.25s ease;
  }

  .site-nav.is-open {
    transform: translateY(0) scale(1);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 14px 18px;
    font-size: 0.95rem;
    border-radius: 10px;
    text-align: center;
  }

  .site-nav a:hover {
    background: rgba(255, 255, 255, 0.8);
  }

  .site-nav a.is-active {
    background: linear-gradient(
      135deg,
      var(--color-brand-navy) 0%,
      #1e2844 100%
    );
    box-shadow: 0 4px 12px rgba(42, 53, 88, 0.22);
  }

  .site-nav a.is-active:hover {
    transform: none;
  }

  .footer-info-row {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

@media (min-width: 768px) {
  .hero--home {
    padding: calc(var(--header-height) + 80px) 0 80px;
  }
}