/* ===================================
   COMPANY TEMPLATE — style.css
   Apple-inspired, Clean & Professional
   =================================== */

/* ── 1. Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary:    #0071e3;
  --color-primary-d:  #0058b0;
  --color-dark:       #1d1d1f;
  --color-gray:       #6e6e73;
  --color-light-gray: #f5f5f7;
  --color-border:     #d2d2d7;
  --color-white:      #ffffff;

  --font-base: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --shadow-sm:  0 2px 8px rgba(0,0,0,.08);
  --shadow-md:  0 8px 32px rgba(0,0,0,.12);
  --shadow-lg:  0 20px 60px rgba(0,0,0,.16);
  --transition: .25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-base);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

/* ── 2. Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover { background: var(--color-primary-d); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--ghost:hover { background: var(--color-primary); color: var(--color-white); }
.btn--sm { padding: 10px 20px; font-size: 14px; }
.btn--full { width: 100%; }

/* ── 3. Section Common ── */
.section { padding: 100px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 17px;
  color: var(--color-gray);
  line-height: 1.7;
}

/* ── 4. Header ── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.08);
  transition: var(--transition);
}
.header__inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}
.logo__mark { color: var(--color-primary); font-size: 20px; }
.logo--white .logo__mark, .logo--white .logo__text { color: var(--color-white); }

.gnb { margin-left: auto; }
.gnb__list {
  display: flex;
  gap: 4px;
}
.gnb__list a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-dark);
  transition: var(--transition);
}
.gnb__list a:hover { background: var(--color-light-gray); color: var(--color-primary); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── 5. Hero ── */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, #f5f5f7 0%, #e8f0fe 100%);
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero__eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.hero__title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero__desc {
  font-size: 18px;
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  position: relative;
}
.hero__card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition);
}
.hero__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.hero__card--1 { grid-column: 1 / 2; }
.hero__card--2 { grid-column: 2 / 3; margin-top: 32px; }
.hero__card--3 { grid-column: 1 / 3; }
.hero__card-icon { font-size: 32px; display: block; margin-bottom: 8px; }
.hero__card strong { font-size: 36px; font-weight: 800; color: var(--color-primary); display: block; }
.hero__card p { font-size: 14px; color: var(--color-gray); margin-top: 4px; }

/* ── 6. About ── */
.about { background: var(--color-white); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about__image-placeholder {
  aspect-ratio: 4/3;
  background: var(--color-light-gray);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray);
  font-size: 16px;
  border: 2px dashed var(--color-border);
}
.about__content h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -.02em;
}
.about__content p { color: var(--color-gray); line-height: 1.8; margin-bottom: 24px; }
.about__list { margin-bottom: 32px; }
.about__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 15px;
}
.check { color: var(--color-primary); font-weight: 700; }

/* ── 7. Stats ── */
.stats {
  background: var(--color-primary);
  padding: 60px 0;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-number {
  display: block;
  font-size: 48px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -.03em;
}
.stat-label {
  font-size: 15px;
  color: rgba(255,255,255,.75);
  margin-top: 4px;
}

/* ── 8. Services ── */
.services { background: var(--color-light-gray); }
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: var(--transition);
  border: 1px solid var(--color-border);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.service-card--featured {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}
.service-card--featured .service-card__desc,
.service-card--featured .service-card__link { color: rgba(255,255,255,.85); }
.service-card__icon { font-size: 36px; margin-bottom: 16px; }
.service-card__title { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.service-card__desc { font-size: 14px; color: var(--color-gray); line-height: 1.7; margin-bottom: 20px; }
.service-card__link { font-size: 14px; font-weight: 600; color: var(--color-primary); }
.service-card--featured .service-card__link { color: var(--color-white); }

/* ── 9. Values ── */
.values { background: var(--color-white); }
.values__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.value-item {
  padding: 32px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.value-item:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }
.value-item__number {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-light-gray);
  line-height: 1;
  margin-bottom: 16px;
}
.value-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.value-item p { font-size: 14px; color: var(--color-gray); line-height: 1.7; }

/* ── 10. Team ── */
.team { background: var(--color-light-gray); }
.team__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.team-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.team-card__photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-light-gray);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gray);
  border: 2px dashed var(--color-border);
}
.team-card__name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.team-card__role { font-size: 13px; color: var(--color-primary); font-weight: 600; margin-bottom: 12px; }
.team-card__bio { font-size: 13px; color: var(--color-gray); line-height: 1.6; }

/* ── 11. Testimonials ── */
.testimonials { background: var(--color-white); }
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--color-light-gray);
  border-radius: var(--radius-md);
  padding: 32px 28px;
}
.testimonial-card__text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-dark);
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-card__author { display: flex; align-items: center; gap: 12px; }
.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-card__author strong { display: block; font-size: 15px; }
.testimonial-card__author span { font-size: 13px; color: var(--color-gray); }

/* ── 12. Contact ── */
.contact { background: var(--color-light-gray); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
.contact__info { display: flex; flex-direction: column; gap: 28px; }
.contact__info-item { display: flex; gap: 16px; align-items: flex-start; }
.contact__info-icon { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.contact__info-item strong { display: block; font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.contact__info-item p { font-size: 14px; color: var(--color-gray); }

.contact__form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group--full { grid-column: 1 / -1; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--color-dark); }
.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font-base);
  transition: var(--transition);
  outline: none;
  background: var(--color-white);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(0,113,227,.12); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ── 13. Footer ── */
.footer { background: var(--color-dark); color: var(--color-white); padding: 64px 0 0; }
.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer__brand p { font-size: 14px; color: rgba(255,255,255,.5); margin-top: 16px; line-height: 1.7; }
.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer__col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: rgba(255,255,255,.9); }
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a { font-size: 13px; color: rgba(255,255,255,.5); transition: var(--transition); }
.footer__col a:hover { color: var(--color-white); }
.footer__bottom {
  padding: 20px 0;
  display: flex;
}
.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  flex-wrap: wrap;
  gap: 8px;
}
.footer__bottom p { font-size: 12px; color: rgba(255,255,255,.4); }

/* ── 14. Responsive ── */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__actions { justify-content: center; }
  .hero__visual { max-width: 400px; margin: 0 auto; }
  .about__grid { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .values__grid { grid-template-columns: repeat(2, 1fr); }
  .team__grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .gnb, .header__cta { display: none; }
  .hamburger { display: flex; }
  .gnb.is-open {
    display: flex;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    box-shadow: var(--shadow-md);
  }
  .gnb.is-open .gnb__list { flex-direction: column; width: 100%; }
  .gnb.is-open .gnb__list a { padding: 14px 16px; font-size: 16px; border-radius: var(--radius-sm); }
  .hero { padding: 120px 0 64px; }
  .services__grid { grid-template-columns: 1fr; }
  .values__grid { grid-template-columns: 1fr; }
  .team__grid { grid-template-columns: repeat(2, 1fr); }
  .contact__form { grid-template-columns: 1fr; padding: 28px 20px; }
  .footer__links { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom .container { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero__visual { grid-template-columns: 1fr; }
  .hero__card--3 { grid-column: 1; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .team__grid { grid-template-columns: 1fr; }
}