/* ═══════════════════════════════════════════════════════════════════
   이룸 마케팅 — 섹션별 스타일
   ─────────────────────────────────────────────────────────────────── */

/* ───── Hero ───── */
.hero {
  background: linear-gradient(180deg, #0A1B3D 0%, #0F2456 100%);
  color: #fff;
  padding: 96px 0 112px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(45,99,229,0.25), transparent 50%),
    radial-gradient(ellipse at 85% 100%, rgba(74,123,255,0.18), transparent 50%);
  pointer-events: none;
}
.hero .container { position: relative; }
.hero-eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--erum-blue-300);
  padding: 6px 14px;
  border: 1px solid rgba(138,174,255,0.3);
  border-radius: 999px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: 72px; line-height: 1.05;
  font-weight: 800; letter-spacing: -0.03em;
  color: #fff; margin: 0 0 24px;
  max-width: 900px; margin-left: auto; margin-right: auto;
}
.hero p {
  font-size: 19px; line-height: 1.6;
  color: rgba(255,255,255,0.75);
  max-width: 640px;
  margin: 0 auto 40px;
}
.hero-cta {
  display: flex; gap: 12px; justify-content: center;
  margin-bottom: 36px; flex-wrap: wrap;
}
.hero-meta {
  font-size: 13px; color: rgba(255,255,255,0.55);
  display: inline-flex; align-items: center; gap: 8px;
}
.hero-meta .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--erum-success);
  box-shadow: 0 0 0 4px rgba(21,163,110,0.2);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(21,163,110,0.2); }
  50% { box-shadow: 0 0 0 8px rgba(21,163,110,0.05); }
}
@media (max-width: 768px) {
  .hero { padding: 64px 0 80px; }
  .hero h1 { font-size: 40px; }
  .hero p { font-size: 16px; }
}

/* ───── Stats ───── */
.stats {
  background: var(--erum-navy-900);
  color: #fff;
  padding: 96px 0;
}
.stats-title {
  font-size: 36px; font-weight: 800;
  letter-spacing: -0.025em;
  margin: 0 auto 56px; max-width: 720px;
  text-align: center; line-height: 1.2;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255,255,255,0.14);
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.stat-item {
  padding: 36px 16px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.14);
}
.stat-item:last-child { border-right: 0; }
.stat-num {
  font-size: 64px; line-height: 1;
  font-weight: 800; letter-spacing: -0.04em;
}
.stat-num small {
  font-size: 36px; color: var(--erum-blue-300); margin-left: 2px; font-weight: 700;
}
.stat-label {
  font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 12px;
}
@media (max-width: 768px) {
  .stats { padding: 48px 0; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .stat-item { padding: 20px 8px; }
  .stat-item:nth-child(2) { border-right: 0; }
  .stat-num { font-size: 28px; }
  .stat-num small { font-size: 18px; }
  .stat-label { font-size: 11px; }
}

/* ───── Partners (3-Row Marquee) ───── */
.partners { background: #fff; padding: 64px 0; overflow: hidden; }
.partners-rows {
  display: flex; flex-direction: column; gap: 28px;
}
.partners-marquee {
  width: 100%;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent 0%, #000 6%, #000 94%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 6%, #000 94%, transparent 100%);
}
.partners-track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: partners-scroll 50s linear infinite;
  align-items: center;
}
.partners-marquee--right .partners-track {
  animation-name: partners-scroll-right;
}
.partners-track img {
  height: 64px;
  width: 140px;
  object-fit: contain;
  object-fit: contain;
  object-position: center;
  filter: grayscale(100%);
  opacity: 0.65;
  flex-shrink: 0;
  transition: all 200ms var(--erum-ease);
}
.partners-marquee:hover .partners-track { animation-play-state: paused; }

/* 개별 로고 사이즈 보정 — 원본 로고 비율이 가로로 좁아 작아 보이는 경우 */
.partners-track img[src*="client-12"],
.partners-track img[src*="client-14"] {
  transform: scale(1.35);
  transform-origin: center;
}
.partners-track img[src*="client-10"] {
  transform: scale(1.0);
  transform-origin: center;
}
.partners-track img:hover {
  filter: grayscale(0%);
  opacity: 1;
}
@keyframes partners-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes partners-scroll-right {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}
@media (max-width: 768px) {
  .partners { padding: 48px 0; }
  .partners-rows { gap: 20px; }
  .partners-track { gap: 36px; animation-duration: 35s; }
  .partners-track img { height: 48px; width: 110px; }
}

/* ───── Cases ───── */
.cases { background: var(--erum-gray-50); padding: 96px 0; }
.cases-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.case-card {
  background: #fff;
  border: 1px solid var(--erum-gray-200); border-radius: 16px;
  overflow: hidden;
  transition: all 200ms var(--erum-ease);
  cursor: pointer; display: block; color: inherit;
}
.case-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--erum-shadow-lg);
}
.case-img {
  aspect-ratio: 16/10;
  background-size: cover; background-position: center;
  background-color: var(--erum-gray-200);
  position: relative;
}
.case-pill {
  position: absolute; top: 14px; left: 14px;
  background: rgba(255,255,255,0.95);
  color: var(--erum-navy-800);
  font-size: 11px; font-weight: 600;
  padding: 5px 11px; border-radius: 999px;
}
.case-body { padding: 22px 22px 24px; }
.case-title {
  font-size: 18px; font-weight: 700;
  color: var(--erum-gray-900); margin: 0 0 10px;
}
.case-desc {
  font-size: 14px; line-height: 1.6;
  color: var(--erum-gray-600); margin: 0;
}
.case-desc b { color: var(--erum-blue-600); font-weight: 700; }
@media (max-width: 900px) {
  .cases-grid { grid-template-columns: 1fr; }
  .cases { padding: 64px 0; }
}

/* ───── Services (Carousel) ───── */
.services { background: #fff; padding: 96px 0; }
.svc-carousel {
  position: relative;
  padding: 0 60px;
  max-width: 1400px;
  margin: 0 auto;
}
.svc-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 8px 24px 24px;
  scrollbar-width: none;
}
.svc-track::-webkit-scrollbar { display: none; }
.svc-big {
  flex: 0 0 360px;
  min-height: 340px;
  background: #fff;
  border: 1px solid var(--erum-gray-200);
  border-radius: 20px;
  padding: 36px 32px;
  scroll-snap-align: start;
  transition: all 240ms var(--erum-ease);
  display: flex;
  flex-direction: column;
}
.svc-big:hover {
  transform: translateY(-4px);
  box-shadow: var(--erum-shadow-lg);
  border-color: var(--erum-blue-300);
}
.svc-big-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--erum-blue-100); color: var(--erum-blue-500);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
  flex-shrink: 0;
}
.svc-big-icon svg { width: 32px; height: 32px; stroke-width: 1.75; }
.svc-big h3 {
  font-size: 22px; font-weight: 800;
  color: var(--erum-gray-900);
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}
.svc-big p {
  font-size: 15px; line-height: 1.65;
  color: var(--erum-gray-600);
  margin: 0;
}
.svc-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--erum-gray-200);
  box-shadow: var(--erum-shadow-md);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  transition: all 160ms var(--erum-ease);
  color: var(--erum-navy-900);
  padding: 0;
}
.svc-arrow:hover {
  background: var(--erum-navy-900); color: #fff;
  border-color: var(--erum-navy-900);
}
.svc-arrow svg { width: 22px; height: 22px; }
.svc-arrow--prev { left: 0; }
.svc-arrow--next { right: 0; }
@media (max-width: 768px) {
  .services { padding: 64px 0; }
  .svc-carousel { padding: 0 16px; }
  .svc-big { flex: 0 0 280px; min-height: 300px; padding: 28px 24px; }
  .svc-big h3 { font-size: 20px; }
  .svc-arrow { display: none; }
}

/* ───── Process ───── */
.process { background: var(--erum-blue-50); padding: 96px 0; }
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  position: relative;
}
.process-steps--5 {
  grid-template-columns: repeat(5, 1fr);
}
.process-steps::before {
  content: "";
  position: absolute;
  top: 50%; left: 12.5%; right: 12.5%;
  transform: translateY(-50%);
  height: 2px;
  background: repeating-linear-gradient(to right, var(--erum-blue-300) 0 6px, transparent 6px 12px);
  z-index: 0;
}
.process-steps--5::before {
  left: 10%; right: 10%;
}
.step {
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  position: relative; z-index: 1;
  border: 1px solid var(--erum-gray-200);
}
.step-num {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--erum-blue-500);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800;
  box-shadow: 0 6px 16px rgba(45,99,229,0.3);
}
.step h3 {
  font-size: 16px; font-weight: 700;
  color: var(--erum-gray-900); margin: 0 0 8px;
}
.step p {
  font-size: 13px; line-height: 1.6;
  color: var(--erum-gray-600); margin: 0;
}
@media (max-width: 900px) {
  .process-steps,
  .process-steps--5 { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
}
@media (max-width: 500px) {
  .process { padding: 64px 0; }
  .process-steps { grid-template-columns: 1fr; }
}

/* ───── FAQ ───── */
.faq { background: #fff; padding: 96px 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--erum-gray-200);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 16px 24px 0;
  font-size: 17px; font-weight: 600;
  color: var(--erum-gray-900);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  transition: color 160ms var(--erum-ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  width: 12px; height: 12px;
  border-right: 2px solid var(--erum-gray-500);
  border-bottom: 2px solid var(--erum-gray-500);
  transform: rotate(45deg);
  transition: transform 200ms var(--erum-ease);
  flex: 0 0 auto;
  margin-right: 4px;
}
.faq-item[open] summary { color: var(--erum-blue-500); }
.faq-item[open] summary::after { transform: rotate(-135deg); border-color: var(--erum-blue-500); }
.faq-answer {
  padding: 0 16px 24px 0;
  font-size: 15px; line-height: 1.7;
  color: var(--erum-gray-600);
}

/* ───── Contact ───── */
.contact { background: var(--erum-navy-900); color: #fff; padding: 96px 0; }
.contact-heading { text-align: center; margin-bottom: 56px; }
.contact-eyebrow {
  font-size: 15px; font-weight: 500;
  color: rgba(255,255,255,0.6); margin: 0 0 12px;
  letter-spacing: 0.02em;
}
.contact-heading h2 {
  font-size: 40px; line-height: 1.2;
  font-weight: 800; letter-spacing: -0.025em;
  color: #fff; margin: 0;
}
.contact-card {
  background: #fff; color: var(--erum-gray-900);
  max-width: 980px; margin: 0 auto;
  padding: 48px 56px;
  border-radius: 24px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.3);
}
.contact-form-cols {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  margin-bottom: 24px;
}
.contact-col { display: flex; flex-direction: column; gap: 16px; }
.contact-col .field { margin: 0; }
.field--grow { flex: 1; display: flex; flex-direction: column; }
.field--grow textarea {
  flex: 1; min-height: 280px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%; box-sizing: border-box;
  padding: 12px 14px;
  border: 1px solid var(--erum-gray-200); border-radius: 10px;
  font: inherit; font-size: 14px; color: var(--erum-gray-900);
  background: #fff;
  transition: all 160ms var(--erum-ease);
}
.contact-form textarea { resize: vertical; font-family: inherit; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 0; border-color: var(--erum-blue-500);
  box-shadow: 0 0 0 3px rgba(45,99,229,0.15);
}
.contact-form label {
  display: block; font-size: 13px; font-weight: 700;
  color: var(--erum-gray-900); margin-bottom: 6px;
}
.contact-form .req { color: var(--erum-danger); }

.contact-privacy {
  background: var(--erum-gray-50);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 8px 0 20px;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.contact-privacy h4 {
  font-size: 13px; font-weight: 700;
  color: var(--erum-gray-900); margin: 0 0 10px;
}
.contact-privacy p {
  font-size: 13px; color: var(--erum-blue-600);
  margin: 0 0 8px;
}
.contact-privacy ul {
  list-style: none; padding: 0; margin: 0;
  font-size: 13px; color: var(--erum-gray-600);
  display: flex; flex-direction: column; gap: 3px;
}
.contact-agree {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--erum-gray-700);
  margin-bottom: 24px; cursor: pointer;
}
.contact-agree input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--erum-blue-500);
  cursor: pointer;
}
.contact-submit-wrap { text-align: center; }
.btn-submit-large {
  padding: 18px 64px;
  font-size: 17px; font-weight: 700;
  border-radius: 12px;
  min-width: 320px;
}
.form-success {
  display: none;
  text-align: center; padding: 40px 20px;
}
.form-success.is-active { display: block; }
.form-success .check {
  width: 64px; height: 64px; margin: 0 auto 16px;
  border-radius: 50%; background: var(--erum-success-bg);
  color: var(--erum-success);
  display: flex; align-items: center; justify-content: center;
}
.form-success h3 { font-size: 20px; margin: 0 0 8px; color: var(--erum-gray-900); }
.form-success p { color: var(--erum-gray-600); margin: 0; font-size: 14px; }

@media (max-width: 800px) {
  .contact { padding: 64px 0; }
  .contact-heading h2 { font-size: 28px; }
  .contact-card { padding: 32px 24px; border-radius: 20px; }
  .contact-form-cols { grid-template-columns: 1fr; gap: 16px; }
  .field--grow textarea { min-height: 140px; }
  .btn-submit-large { min-width: 0; width: 100%; padding: 16px; font-size: 16px; }
}

/* ───── Columns / Blog teaser ───── */
.columns { background: var(--erum-gray-50); padding: 96px 0; }
.columns-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.columns-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 1100px) {
  .columns-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
.column-card {
  background: #fff;
  border: 1px solid var(--erum-gray-200); border-radius: 16px;
  padding: 28px;
  transition: all 200ms var(--erum-ease);
  display: flex; flex-direction: column;
}
.column-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--erum-shadow-md);
  border-color: var(--erum-blue-300);
}
.column-tag {
  font-size: 12px; font-weight: 600;
  color: var(--erum-blue-500);
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.column-card h3 {
  font-size: 18px; font-weight: 700;
  color: var(--erum-gray-900);
  margin: 0 0 12px; line-height: 1.4;
}
.column-card p {
  font-size: 14px; line-height: 1.6;
  color: var(--erum-gray-600); margin: 0 0 20px;
  flex: 1;
}
.column-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--erum-gray-500);
  padding-top: 16px;
  border-top: 1px solid var(--erum-gray-100);
}
.column-meta .read-more {
  color: var(--erum-blue-500); font-weight: 600;
  display: inline-flex; align-items: center; gap: 4px;
}
@media (max-width: 900px) {
  .columns-grid { grid-template-columns: 1fr; }
  .columns { padding: 64px 0; }
}