/* WeFreeSoft — software company template */

@font-face {
  font-family: "LINE Seed Sans KR";
  src: url("https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_11-01@1.0/LINESeedKR-Th.woff2")
    format("woff2");
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LINE Seed Sans KR";
  src: url("https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_11-01@1.0/LINESeedKR-Rg.woff2")
    format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LINE Seed Sans KR";
  src: url("https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_11-01@1.0/LINESeedKR-Bd.woff2")
    format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #0b1220;
  --ink-soft: #1e293b;
  --muted: #64748b;
  --line: #e2e8f0;
  --surface: #f1f5f9;
  --white: #ffffff;
  --accent: #0f766e;
  --accent-hover: #0d9488;
  --accent-soft: #ccfbf1;
  --font-display: "LINE Seed Sans KR", sans-serif;
  --font-body: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui,
    "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic",
    sans-serif;
  --nav-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* —— Nav —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.04em;
  color: var(--ink);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

.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);
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 48px;
  padding: 0.75rem 1.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 8px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: var(--ink);
}

.btn-on-dark {
  background: var(--white);
  color: var(--ink);
}

.btn-on-dark:hover {
  background: var(--accent-soft);
}

.btn-ghost-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.btn-stack {
  margin-top: 1.5rem;
}

/* —— Hero (software template) —— */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
  color: var(--white);
  isolation: isolate;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(
      105deg,
      rgba(11, 18, 32, 0.92) 0%,
      rgba(11, 18, 32, 0.72) 42%,
      rgba(15, 118, 110, 0.35) 100%
    ),
    var(--hero-image) center / cover no-repeat;
}

.hero--home {
  --hero-image: url("../assets/product.jpg");
}

.hero--about {
  --hero-image: url("../assets/about-hero.jpg");
}

.hero--products {
  --hero-image: url("../assets/products-hero.jpg");
}

.hero--contact {
  --hero-image: url("../assets/contact-hero.jpg");
}

.hero--page {
  min-height: 38vh;
}

.hero-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.hero-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 4.25rem);
  letter-spacing: -0.05em;
  line-height: 1.05;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeUp 0.85s var(--ease) 0.1s forwards;
}

.hero-brand span {
  color: var(--accent-hover);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  letter-spacing: -0.02em;
  max-width: 28rem;
  margin-bottom: 0.85rem;
  opacity: 0;
  animation: fadeUp 0.85s var(--ease) 0.25s forwards;
}

.hero-lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 32rem;
  margin-bottom: 1.75rem;
  opacity: 0;
  animation: fadeUp 0.85s var(--ease) 0.4s forwards;
}

.hero .btn-row {
  opacity: 0;
  animation: fadeUp 0.85s var(--ease) 0.55s forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* —— Sections —— */
.section {
  padding: 5.5rem 1.5rem;
}

.section--surface {
  background: var(--surface);
}

.section--tight {
  padding: 4.5rem 1.5rem;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: var(--ink);
}

.section p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 36rem;
}

.section p + p {
  margin-top: 0.85rem;
}

.section a:not(.btn) {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.split--reverse .split-media {
  order: -1;
}

.split-media {
  position: relative;
}

.split-media::after {
  content: "";
  position: absolute;
  inset: auto -12px -12px auto;
  width: 48%;
  height: 48%;
  background: var(--accent-soft);
  z-index: -1;
  border-radius: 4px;
}

.split-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: 4px;
}

/* Soft panel instead of photo band */
.panel {
  background: var(--ink);
  color: var(--white);
  padding: 4.5rem 1.5rem;
}

.panel-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.panel h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.85rem;
  max-width: 28rem;
}

.panel p {
  color: rgba(255, 255, 255, 0.72);
  max-width: 34rem;
  font-size: 1.05rem;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Contact */
.contact-block {
  display: grid;
  gap: 1.75rem;
  max-width: 40rem;
  margin-top: 2rem;
}

.contact-item {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
}

.contact-item dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.contact-item dd {
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 500;
}

.contact-item a {
  color: var(--accent);
}

/* —— Footer —— */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.65);
  padding: 2.75rem 1.5rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.15rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-meta {
  font-size: 0.82rem;
  line-height: 1.75;
}

.footer-meta a {
  color: var(--accent-hover);
}

.footer-copy {
  margin-top: 1.25rem;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
}

/* —— Responsive —— */
@media (max-width: 800px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 0;
    transform: translateY(-6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  }

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

  .nav-links a {
    padding: 0.95rem 1.5rem;
  }

  .split,
  .split--reverse {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .split--reverse .split-media {
    order: 0;
  }

  .split-media img {
    height: 240px;
  }

  .split-media::after {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 3rem 0 4rem;
  }

  .hero--page {
    min-height: auto;
    padding: 2.5rem 0 3rem;
  }
}