/* JobEnable — Landing page styles
   Mobile-first, responsive, no framework.
   Brand: teal #0f766e + amber #f59e0b, white background.
   Font: system stack (zero font load time).
*/

:root {
  --teal: #0f766e;
  --teal-dark: #064e49;
  --teal-light: #14b8a6;
  --teal-bg: #f0fdfa;
  --amber: #f59e0b;
  --amber-dark: #d97706;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --white: #ffffff;
  --radius: 12px;
  --max-width: 960px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", "Noto Sans", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===================== HEADER ===================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}

.logo__img {
  height: 32px;
  width: auto;
  display: block;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header__nav a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.15s;
}

.header__nav a:hover { color: var(--teal); text-decoration: none; }

.lang-toggle {
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.15s;
}

.lang-toggle:hover { border-color: var(--teal); color: var(--teal); }

/* ===================== HERO ===================== */
.hero {
  background: linear-gradient(135deg, var(--teal-bg) 0%, var(--white) 60%);
  padding: 80px 20px 100px;
  text-align: center;
}

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

.hero__logo {
  max-width: 480px;
  width: 100%;
  height: auto;
  margin: 0 auto 24px;
  display: block;
}

.hero__tagline {
  font-size: clamp(18px, 3.5vw, 24px);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.hero__sub {
  font-size: clamp(15px, 2.5vw, 18px);
  color: var(--text-muted);
  margin-bottom: 32px;
}

.hero__cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.15s;
}

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

.btn--primary:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  text-decoration: none;
}

.btn--ghost {
  background: transparent;
  color: var(--teal);
  border-color: var(--teal);
}

.btn--ghost:hover {
  background: var(--teal-bg);
  text-decoration: none;
}

.btn--full { width: 100%; }

/* ===================== SECTIONS ===================== */
.section {
  padding: 64px 20px;
}

.section--alt { background: var(--teal-bg); }

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

.section__inner--narrow { max-width: 560px; }

.section__title {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 24px;
  text-align: center;
}

.section__subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.section__body {
  font-size: 17px;
  color: var(--text);
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

/* ===================== CARDS ===================== */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
  box-shadow: 0 4px 20px rgba(15, 118, 110, 0.1);
  transform: translateY(-2px);
}

.card--link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.card--link:hover { text-decoration: none; }

.card__icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 8px;
}

.card__body {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.card__link {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--teal);
}

/* ===================== FOUNDERS ===================== */
.founders {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

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

.founder {
  text-align: center;
  padding: 24px;
}

.founder__avatar {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -1px;
}

.founder__name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.founder__name-ko {
  font-size: 15px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 4px;
}

.founder__role {
  font-size: 14px;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 12px;
}

.founder__bio {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  text-align: left;
}

.founder__link {
  display: inline-block;
  margin-top: 12px;
  margin-right: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--teal);
}

/* ===================== CONTACT FORM ===================== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form__row {
  position: relative;
}

.form__row input,
.form__row textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  transition: border-color 0.15s;
}

.form__row input:focus,
.form__row textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

.form__row textarea { resize: vertical; }

.form__row label {
  position: absolute;
  left: 16px;
  top: 14px;
  color: var(--text-muted);
  font-size: 15px;
  pointer-events: none;
  transition: all 0.15s;
}

.form__row input:focus + label,
.form__row input:not(:placeholder-shown) + label,
.form__row textarea:focus + label,
.form__row textarea:not(:placeholder-shown) + label {
  top: -8px;
  left: 12px;
  font-size: 12px;
  color: var(--teal);
  background: var(--white);
  padding: 0 4px;
}

.form__status {
  font-size: 14px;
  text-align: center;
  min-height: 20px;
}

.form__status--ok { color: var(--teal); }
.form__status--err { color: #dc2626; }

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}

.contact__email {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ===================== FOOTER ===================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.footer__nav {
  margin-top: 8px;
  display: flex;
  gap: 16px;
  justify-content: center;
}

.footer__nav a { color: var(--text-muted); font-size: 13px; }
.footer__nav a:hover { color: var(--teal); text-decoration: none; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 600px) {
  .header__nav a:not(.lang-toggle) { display: none; }
  .header__nav { gap: 8px; }
  .hero { padding: 60px 20px 80px; }
  .section { padding: 48px 20px; }
}