/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --black: #1a1a1a;
  --white: #f6ecdb;
  --gray-100: #efe3cc;
  --gray-200: #ddd2bf;
  --gray-400: #9a8878;
  --gray-600: #6b5d48;
  --accent: #c8302c;
  --serif: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --sans: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--sans);
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

/* ===== ACCENT UTILITY ===== */
.accent {
  color: var(--accent);
}

/* dark bg 위의 accent는 그대로, light bg 위에서는 검정 강조 */
.about .accent,
.experience .accent,
.projects .accent {
  color: var(--black);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}

.hero .accent {
  color: var(--accent);
  text-decoration: none;
}

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(246, 236, 219, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.nav.scrolled {
  border-bottom-color: var(--gray-200);
}

.nav__logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav__links a {
  position: relative;
  padding-bottom: 2px;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--black);
  transition: width 0.3s var(--transition);
}

.nav__links a:hover::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 5px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 3rem 4rem;
  position: relative;
  overflow: hidden;
}

/* Hero Portrait */
.hero__portrait {
  position: absolute;
  right: 8%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(280px, 25vw, 420px);
  z-index: 1;
}

.hero__portrait img {
  width: 100%;
  height: auto;
  filter: grayscale(20%);
  object-fit: cover;
}

.hero__portrait-caption,
.about__portrait-caption {
  display: block;
  text-align: center;
  font-size: 0.65rem;
  color: var(--gray-400);
  margin-top: 0.5rem;
  letter-spacing: 0.02em;
  font-style: normal;
}

.hero__bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--serif);
  font-size: clamp(8rem, 18vw, 22rem);
  font-weight: 900;
  color: var(--gray-100);
  white-space: nowrap;
  letter-spacing: -0.04em;
  user-select: none;
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero__name {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero__name-sub {
  color: var(--gray-400);
}

.hero__hook {
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.01em;
}

.hero__title {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 400;
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 2rem;
  color: var(--gray-600);
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__tag {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--black);
  border-radius: 100px;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  font-weight: 500;
  transition: all 0.3s ease;
}

.hero__tag:hover {
  background: var(--black);
  color: var(--white);
}

.hero__scroll {
  position: absolute;
  right: 3rem;
  bottom: 4rem;
  writing-mode: vertical-rl;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 60px;
  background: var(--black);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.5); }
}

/* ===== SECTION COMMON ===== */
.section {
  padding: 6rem 3rem;
  border-top: 1px solid var(--black);
}

.section__label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 3rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section__label::before {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background: var(--accent);
}

.section__title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

/* ===== ABOUT / CORE COMPETENCY ===== */
.about {
  background: var(--white);
}

.about__top {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 4rem;
  align-items: start;
  margin-bottom: 2rem;
}

.about__portrait {
  position: sticky;
  top: 6rem;
}

.about__portrait img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.about__portrait-caption {
  font-style: normal;
}

.about__intro {
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.8;
  max-width: 800px;
  margin-bottom: 4rem;
  color: var(--gray-600);
}

.about__equation {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 2rem;
  align-items: stretch;
  margin-bottom: 4rem;
}

.about__card {
  background: var(--white);
  border: 1px solid var(--black);
  padding: 2.5rem 2rem;
  position: relative;
  transition: all 0.4s var(--transition);
}

.about__card:hover {
  background: var(--black);
  color: var(--white);
}

.about__card-number {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 700;
  opacity: 0.1;
  position: absolute;
  top: 1rem;
  right: 1.5rem;
}

.about__card h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  line-height: 1.3;
}

.about__card p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray-600);
  transition: color 0.4s ease;
}

.about__card:hover p {
  color: var(--gray-400);
}

.about .about__card:hover .accent {
  color: var(--white) !important;
}

.about__operator {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--gray-400);
}

/* ===== BRIDGE SECTION ===== */
.bridge {
  background: var(--black);
  color: var(--white);
  padding: 8rem 3rem;
  position: relative;
  overflow: hidden;
}

.bridge .section__label {
  color: var(--gray-400);
}

.bridge .section__label::before {
  background: var(--gray-400);
}

.bridge__header {
  text-align: center;
  margin-bottom: 6rem;
  position: relative;
  z-index: 2;
}

.bridge__title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.bridge__title em {
  font-style: normal;
  color: var(--accent);
}

.bridge__subtitle {
  font-size: 1.1rem;
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Timeline Flow */
.bridge__flow {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  z-index: 2;
}

.bridge__line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
  transform: translateX(-50%);
}

.bridge__step {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  align-items: center;
  margin-bottom: 4rem;
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s var(--transition);
}

.bridge__step.visible {
  opacity: 1;
  transform: translateY(0);
}

.bridge__step-content {
  padding: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  transition: all 0.4s ease;
}

.bridge__step-content:hover {
  border-color: var(--accent);
  background: rgba(200, 48, 44, 0.06);
}

.bridge__step:nth-child(odd) .bridge__step-content {
  grid-column: 1;
  text-align: right;
}

.bridge__step:nth-child(even) .bridge__step-content {
  grid-column: 3;
}

.bridge__step-dot {
  grid-column: 2;
  display: flex;
  justify-content: center;
  align-items: center;
}

.bridge__step-dot::before {
  content: '';
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 20px rgba(200, 48, 44, 0.5);
}

.bridge__step-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.bridge__step-title {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.bridge__step-desc {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.7;
}

/* Bridge bottom CTA */
.bridge__conclusion {
  text-align: center;
  margin-top: 5rem;
  position: relative;
  z-index: 2;
}

.bridge__conclusion-text {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.4;
  max-width: 700px;
  margin: 0 auto;
}

.bridge__conclusion-text em {
  color: var(--accent);
  font-style: normal;
}

/* Background glow */
.bridge__glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.08;
  pointer-events: none;
}

.bridge__glow--1 {
  top: -100px;
  right: -100px;
  background: var(--accent);
}

.bridge__glow--2 {
  bottom: -150px;
  left: -100px;
  background: #c8302c;
}

/* ===== WORK EXPERIENCE (Accordion) ===== */
.experience {
  background: var(--white);
}

.accordion__item {
  border-bottom: 1px solid var(--black);
}

.accordion__header {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2rem 0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.accordion__company {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 700;
}

.accordion__role {
  font-size: 0.95rem;
  color: var(--gray-600);
}

.accordion__period {
  font-size: 0.85rem;
  color: var(--gray-400);
  text-align: right;
}

.accordion__arrow {
  width: 40px;
  height: 40px;
  border: 1px solid var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s var(--transition);
  flex-shrink: 0;
}

.accordion__arrow svg {
  width: 16px;
  height: 16px;
  transition: transform 0.4s var(--transition);
}

.accordion__item.active .accordion__arrow,
.accordion__item:hover .accordion__arrow {
  background: var(--black);
  color: var(--white);
}

.accordion__item.active .accordion__arrow svg,
.accordion__item:hover .accordion__arrow svg {
  transform: rotate(180deg);
}

/* Hover background */
.accordion__item:hover .accordion__header {
  background: var(--gray-100);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--transition);
}

.accordion__body-inner {
  padding: 0 0 2.5rem 0;
}

.accordion__details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.accordion__detail {
  padding: 1.5rem;
  background: var(--gray-100);
}

.accordion__detail h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
  color: var(--gray-400);
}

.accordion__detail p, .accordion__detail li {
  font-size: 0.9rem;
  line-height: 1.7;
}

.accordion__detail li {
  padding-left: 0.5rem;
  margin-bottom: 0.35rem;
}

.accordion__detail li::before {
  content: '— ';
  color: var(--gray-400);
}

/* ===== AI HIGHLIGHT SECTION ===== */
.ai-highlight {
  background: var(--black);
  color: var(--white);
  padding: 8rem 3rem;
  border-top: 1px solid var(--black);
}

.ai-highlight__header {
  max-width: 800px;
  margin-bottom: 4rem;
}

.ai-highlight .section__label::before {
  background: var(--gray-400);
}

.ai-highlight__title {
  font-family: var(--sans);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.ai-highlight__title em {
  color: var(--accent);
  font-style: normal;
}

.ai-highlight__subtitle {
  font-size: 1rem;
  color: var(--gray-400);
  line-height: 1.8;
}

/* Metrics */
.ai-highlight__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
  padding: 3rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.ai-highlight__metric {
  text-align: center;
}

.ai-highlight__metric-value {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.ai-highlight__metric-unit {
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  font-weight: 700;
  color: var(--accent);
}

.ai-highlight__metric-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--gray-400);
  letter-spacing: 0.02em;
}

/* Case Cards */
.ai-highlight__cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.ai-highlight__case {
  border: 1px solid rgba(255,255,255,0.1);
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.ai-highlight__case:hover {
  border-color: rgba(200, 48, 44, 0.5);
}

.ai-highlight__case-img {
  position: relative;
  overflow: hidden;
  background: #111;
}

.ai-highlight__case-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.ai-highlight__case:hover .ai-highlight__case-img img {
  transform: scale(1.03);
}

.ai-highlight__case-img a {
  display: block;
  position: relative;
}

.ai-highlight__case-link-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  background: var(--accent);
  color: var(--black);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: transform 0.3s ease;
}

.ai-highlight__case:hover .ai-highlight__case-link-badge {
  transform: scale(1.05);
}

.ai-highlight__case-caption {
  display: block;
  text-align: center;
  font-size: 0.65rem;
  color: var(--gray-400);
  padding: 0.5rem;
  font-style: normal;
}

.ai-highlight__case-info {
  padding: 2rem;
}

.ai-highlight__case-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-weight: 700;
  display: block;
  margin-bottom: 0.75rem;
}

.ai-highlight__case-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.ai-highlight__case-desc {
  font-size: 0.9rem;
  color: var(--gray-400);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.ai-highlight__case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.ai-highlight__case-tags span {
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--gray-400);
  letter-spacing: 0.03em;
}

/* ===== PROJECTS ===== */
.projects {
  background: var(--gray-100);
}

.project__grid {
  display: grid;
  gap: 0;
}

.project__item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 500px;
  border-bottom: 1px solid var(--black);
  overflow: hidden;
}

.project__item:nth-child(even) .project__visual {
  order: 2;
}

.project__visual {
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  position: relative;
  overflow: hidden;
}

.project__visual-number {
  font-family: var(--serif);
  font-size: clamp(6rem, 12vw, 10rem);
  font-weight: 900;
  color: rgba(255, 255, 255, 0.05);
  position: absolute;
}

.project__visual-icon {
  position: relative;
  z-index: 1;
}

/* Project screenshot visual */
.project__visual--screenshot {
  position: relative;
}

.project__screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0.3;
}

.project__stat-overlay {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Campaign image with link */
.project__visual--campaign {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}

.project__campaign-link {
  position: relative;
  z-index: 1;
  display: block;
  width: 90%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transition: all 0.4s ease;
}

.project__campaign-link:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 50px rgba(0, 0, 0, 0.6);
  transform: translateY(-3px);
}

.project__campaign-img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.project__campaign-link:hover .project__campaign-img {
  transform: scale(1.03);
}

.project__campaign-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.project__campaign-play svg {
  margin-left: 3px;
}

.project__campaign-link:hover .project__campaign-play {
  background: rgba(0, 0, 0, 0.7);
  transform: translate(-50%, -50%) scale(1.1);
}

.project__campaign-caption {
  display: block;
  text-align: center;
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 1rem;
  letter-spacing: 0.02em;
  z-index: 1;
}


.project__differ-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.project__differ-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  color: var(--black);
  transition: all 0.3s ease;
  background: var(--gray-100);
}

.project__differ-link:hover {
  border-color: var(--black);
  background: var(--black);
  color: var(--white);
}

.project__differ-link:hover .project__differ-link-caption {
  color: var(--gray-400);
}

.project__differ-link > div {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.project__differ-link-title {
  font-size: 0.85rem;
  font-weight: 600;
}

.project__differ-link-caption {
  font-size: 0.65rem;
  color: var(--gray-400);
  letter-spacing: 0.01em;
  transition: color 0.3s ease;
}

.project__stat-cards--bottom {
  flex-direction: row;
  gap: 1rem;
  width: 100%;
}

.project__stat-cards--bottom .project__stat-card {
  flex: 1;
  padding: 1.25rem;
}

.project__stat-cards--bottom .project__stat-value {
  font-size: 1.4rem;
}

.project__stat-cards--bottom .project__stat-label {
  font-size: 0.7rem;
}


/* Project stat cards inside visual */
.project__stat-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  z-index: 1;
}

.project__stat-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.project__stat-card:hover {
  background: rgba(200, 48, 44, 0.1);
  border-color: var(--accent);
}

.project__stat-value {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.project__stat-label {
  font-size: 0.8rem;
  color: var(--gray-400);
  letter-spacing: 0.04em;
}

.project__info {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project__category {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--gray-400);
  margin-bottom: 1rem;
  font-weight: 600;
}

.project__title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.project__desc {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.project__highlights {
  margin-bottom: 1.5rem;
}

.project__highlight {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0;
  font-size: 0.9rem;
}

.project__highlight::before {
  content: '↗';
  font-size: 0.8rem;
  color: var(--accent);
  flex-shrink: 0;
}

.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project__tag-item {
  font-size: 0.75rem;
  padding: 0.35rem 1rem;
  background: transparent;
  border: 1px solid var(--black);
  border-radius: 999px;
  letter-spacing: 0.04em;
}

/* ===== COUNTER ANIMATION ===== */
.counter {
  font-variant-numeric: tabular-nums;
}

/* ===== CONTACT ===== */
.contact {
  background: var(--black);
  color: var(--white);
  padding: 8rem 3rem;
  text-align: center;
}

.contact .section__label {
  justify-content: center;
  color: var(--gray-400);
}

.contact .section__label::before {
  background: var(--gray-400);
}

.contact__title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.contact__title em {
  font-style: normal;
  color: var(--accent);
}

.contact__subtitle {
  font-size: 1.1rem;
  color: var(--gray-400);
  margin-bottom: 3rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.contact__links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  padding: 1rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.contact__link:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

/* ===== FOOTER ===== */
.footer {
  padding: 2rem 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--black);
  color: var(--gray-400);
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--transition);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s var(--transition);
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s var(--transition);
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s var(--transition);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.35s; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero__portrait {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    width: 60%;
    max-width: 300px;
    margin: 2rem auto 0;
  }

  .hero {
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 6rem;
  }

  .hero__tags {
    justify-content: center;
  }

  .about__top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about__portrait {
    max-width: 280px;
    margin: 0 auto;
    position: static;
  }

  .about__equation {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about__operator {
    font-size: 1.5rem;
    padding: 0.5rem 0;
  }

  .bridge__step {
    grid-template-columns: 40px 1fr;
    gap: 1.5rem;
  }

  .bridge__line {
    left: 20px;
  }

  .bridge__step-content {
    grid-column: 2 !important;
    text-align: left !important;
  }

  .bridge__step-dot {
    grid-column: 1;
    grid-row: 1;
  }

  .project__item {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .ai-highlight__cases {
    grid-template-columns: 1fr;
  }

  .ai-highlight__metrics {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .project__item:nth-child(even) .project__visual {
    order: 0;
  }

  .project__visual {
    min-height: 300px;
  }

  .project__visual--campaign {
    padding: 1.5rem;
  }

  .project__campaign-link {
    width: 100%;
  }

  .project__stat-cards--bottom {
    flex-direction: column;
  }


  .accordion__header {
    grid-template-columns: 1fr auto;
    gap: 1rem;
  }

  .accordion__role,
  .accordion__period {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav {
    padding: 1rem 1.5rem;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    font-size: 1.2rem;
  }

  .nav__links.open {
    display: flex;
  }

  .nav__toggle {
    display: flex;
    z-index: 1001;
  }

  .hero {
    padding: 0 1.5rem 3rem;
  }

  .hero__scroll {
    display: none;
  }

  .section {
    padding: 4rem 1.5rem;
  }

  .bridge {
    padding: 5rem 1.5rem;
  }

  .ai-highlight {
    padding: 5rem 1.5rem;
  }

  .ai-highlight__metrics {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem 0;
  }

  .contact {
    padding: 5rem 1.5rem;
  }

  .footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    padding: 1.5rem;
  }

  .project__info {
    padding: 2rem 1.5rem;
  }

  .accordion__header {
    padding: 1.5rem 0;
  }

  .accordion__details {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .hero__bg-text {
    font-size: 6rem;
  }

  .bridge__step {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .bridge__line {
    display: none;
  }

  .bridge__step-dot {
    display: none;
  }
}

/* ===== NAV CTA 버튼 ===== */
.nav__links .nav__cta {
  display: inline-flex;
  align-items: center;
  border: 1.5px solid var(--accent);
  padding: 0.5rem 1.2rem;
  font-weight: 600;
  line-height: 1;
  background: var(--accent);
  color: var(--white);
  transition: background 0.3s ease, color 0.3s ease;
}

.nav__cta:hover {
  background: transparent;
  color: var(--accent);
}

.nav__cta::after {
  display: none !important;
}

/* ===== HERO CTA 버튼 ===== */
.hero__cta {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.9rem 2.5rem;
  border: 2px solid var(--accent);
  background: var(--accent);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: all 0.3s ease;
  color: var(--white);
}

.hero__cta:hover {
  background: transparent;
  color: var(--accent);
}

/* ===== OFFERS 섹션 ===== */
.offers {
  background: var(--white);
}

.offers__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 1rem;
}

.offers__card {
  border: 1px solid var(--black);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all 0.4s var(--transition);
}

.offers__card:hover {
  background: var(--black);
  color: var(--white);
}

.offers__icon {
  font-size: 2rem;
  line-height: 1;
}

.offers__card h3 {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.offers__desc {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--gray-600);
  transition: color 0.4s ease;
}

.offers__card:hover .offers__desc {
  color: var(--gray-400);
}

.offers__topics {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1;
}

.offers__topics li {
  font-size: 0.85rem;
  color: var(--gray-600);
  transition: color 0.4s ease;
}

.offers__topics li::before {
  content: '— ';
  color: var(--accent);
}

.offers__card:hover .offers__topics li {
  color: var(--gray-400);
}

.offers__cta {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--black);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
  color: var(--black);
}

.offers__card:hover .offers__cta {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

/* ===== CONTACT FORM ===== */
.contact__form {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact__form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.contact__form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact__form-group label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-400);
  font-weight: 600;
}

.contact__form-group input,
.contact__form-group select,
.contact__form-group textarea {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
  padding: 0.9rem 1rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s ease;
  -webkit-appearance: none;
  appearance: none;
}

.contact__form-group input::placeholder,
.contact__form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.contact__form-group input:focus,
.contact__form-group select:focus,
.contact__form-group textarea:focus {
  border-color: var(--accent);
}

.contact__form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.contact__form-group select option {
  background: var(--black);
  color: var(--white);
}

.contact__form-group textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

.contact__submit {
  align-self: flex-start;
  padding: 1rem 3rem;
  background: var(--accent);
  color: var(--black);
  border: none;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all 0.3s ease;
}

.contact__submit:hover {
  background: var(--white);
}

.contact__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.contact__success {
  display: none;
  max-width: 640px;
  margin: 0 auto;
  padding: 2.5rem;
  border: 1px solid var(--accent);
  color: var(--white);
  font-size: 1.1rem;
  text-align: center;
  line-height: 1.8;
}

/* ===== RESPONSIVE: OFFERS & FORM ===== */
@media (max-width: 1024px) {
  .offers__grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .contact__form-row {
    grid-template-columns: 1fr;
  }

  .contact__submit {
    width: 100%;
    text-align: center;
  }
}

/* ===== HERO TAGLINE ===== */
.hero__tagline {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

/* ===== EMPATHY SECTION ===== */
.empathy {
  background: var(--white);
}

.empathy__list {
  max-width: 760px;
  margin-bottom: 3.5rem;
}

.empathy__item {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--gray-200);
  transition: padding-left 0.3s ease;
}

.empathy__item:first-child {
  border-top: 2px solid var(--accent);
}

.empathy__item:last-child {
  border-bottom: 2px solid var(--accent);
}

.empathy__check {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.empathy__item:hover .empathy__check {
  background: var(--accent);
  color: var(--white);
}

.empathy__item p {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.5;
  color: var(--gray-600);
}

.empathy__item p strong {
  color: var(--black);
  font-weight: 700;
}

.empathy__bottom {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.empathy__bottom-text {
  font-size: 1.1rem;
  color: var(--gray-600);
}

.empathy__bottom-btn {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  border: 2px solid var(--accent);
  color: var(--accent);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all 0.3s ease;
}

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

/* ===== PROOF SECTION ===== */
.proof {
  background: var(--gray-100);
}

.proof__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 4rem;
}

.proof__stat {
  background: var(--white);
  border: 1.5px solid var(--black);
  box-shadow: 5px 5px 0 var(--accent);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.proof__stat-num {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--black);
  letter-spacing: -0.04em;
}

.proof__stat-num small {
  font-size: 0.5em;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0;
}

.proof__stat-label {
  font-size: 0.8rem;
  color: var(--gray-600);
  line-height: 1.5;
}

/* Career Timeline */
.proof__career {
  border-top: 3px solid var(--accent);
}

.proof__career-row {
  display: grid;
  grid-template-columns: 160px 260px 1fr;
  gap: 2rem;
  align-items: center;
  padding: 1.4rem 0.5rem;
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.2s ease;
  cursor: default;
}

.proof__career-row:hover {
  background: var(--white);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  margin-left: -1.5rem;
  margin-right: -1.5rem;
}

.proof__career-year {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.proof__career-co {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--black);
}

.proof__career-desc {
  font-size: 0.85rem;
  color: var(--gray-600);
}

.proof__career-row--current .proof__career-co {
  color: var(--accent);
}

.proof__career-row--current .proof__career-year {
  font-weight: 900;
}

.proof__career-co-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.proof__career-industry {
  display: inline-flex;
  align-self: flex-start;
  padding: 0.2rem 0.8rem;
  border: 1.5px solid var(--accent);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

/* ===== AI CASES DARK SECTION ===== */
.proof-cases {
  background: var(--black);
  color: var(--white);
  padding: 5rem 3rem;
}

.proof-cases__label {
  color: var(--gray-400) !important;
}

.proof-cases__label::before {
  background: var(--gray-400) !important;
}

.proof-cases__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

/* ===== OFFERS BADGE ===== */
.offers__badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  background: var(--accent);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 999px;
  margin-bottom: 0.25rem;
}

/* ===== RESPONSIVE: NEW SECTIONS ===== */
@media (max-width: 1024px) {
  .proof__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof__career-row {
    grid-template-columns: 140px 1fr;
    gap: 1.5rem;
  }

  .proof__career-desc {
    display: none;
  }

  .proof-cases__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .empathy__item {
    grid-template-columns: 40px 1fr;
    gap: 1rem;
  }

  .empathy__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .proof__career-row {
    grid-template-columns: 1fr;
    gap: 0.3rem;
    padding: 1rem 0.5rem;
  }

  .proof__career-desc {
    display: block;
  }

  .proof-cases {
    padding: 4rem 1.5rem;
  }
}

/* ===== VINTAGE MAGAZINE ENHANCEMENTS ===== */

/* About cards — offset shadow */
.about__card {
  box-shadow: 5px 5px 0 var(--black);
  border-width: 1.5px;
  transition: all 0.35s var(--transition);
}

.about__card:hover {
  background: var(--black);
  color: var(--white);
  box-shadow: 8px 8px 0 var(--accent);
  transform: translate(-3px, -3px);
}

/* Offers cards — offset shadow + red hover shadow */
.offers__card {
  box-shadow: 5px 5px 0 var(--accent);
  border-width: 1.5px;
  border-color: var(--black);
}

.offers__card:hover {
  background: var(--black);
  color: var(--white);
  box-shadow: 8px 8px 0 var(--accent);
  transform: translate(-3px, -3px);
}

/* Section label — red accent dot */
.section__label::after {
  content: '';
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* Section borders — thicker */
.section {
  border-top-width: 2px;
}

/* Hero tags — stronger pill style */
.hero__tag {
  border-width: 1.5px;
  font-weight: 600;
}

.hero__tag:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

/* AI highlight case tags — pill style */
.ai-highlight__case-tags span {
  border-radius: 999px;
  border-color: rgba(255, 255, 255, 0.25);
}

/* Project highlights arrow — bolder */
.project__highlight::before {
  font-weight: 700;
}

/* Contact form focus — red accent ring */
.contact__form-group input:focus,
.contact__form-group select:focus,
.contact__form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(200, 48, 44, 0.15);
}

/* Bridge section label on dark bg */
.bridge .section__label::after {
  background: var(--accent);
}

/* AI highlight section label on dark bg */
.ai-highlight .section__label {
  color: var(--gray-400);
}
.ai-highlight .section__label::before {
  background: var(--gray-400);
}
.ai-highlight .section__label::after {
  background: var(--accent);
}

/* Nav mobile menu bg matches cream */
@media (max-width: 768px) {
  .nav__links {
    background: var(--white);
  }
}

/* ===== DELIVERABLES ===== */
.deliverables {
  background: var(--gray-100);
}

.deliverables__sub {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-top: -0.5rem;
  margin-bottom: 3.5rem;
}

.deliverables__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.deliverables__item {
  display: flex;
  gap: 1.5rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.deliverables__item:nth-child(odd) {
  padding-right: 3.5rem;
  border-right: 1px solid var(--gray-200);
}

.deliverables__item:nth-child(even) {
  padding-left: 3.5rem;
}

.deliverables__item:nth-last-child(-n+2) {
  border-bottom: none;
}

.deliverables__num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  min-width: 24px;
  padding-top: 0.25rem;
  flex-shrink: 0;
}

.deliverables__content h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.deliverables__content p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.65;
}

.deliverables__note {
  display: block;
  font-size: 0.72rem;
  color: var(--gray-400);
  margin-top: 0.5rem;
  font-style: italic;
}

@media (max-width: 768px) {
  .deliverables__grid {
    grid-template-columns: 1fr;
  }

  .deliverables__item:nth-child(odd) {
    padding-right: 0;
    border-right: none;
  }

  .deliverables__item:nth-child(even) {
    padding-left: 0;
  }

  .deliverables__item:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--gray-200);
  }

  .deliverables__item:last-child {
    border-bottom: none;
  }
}

/* ===== TEXT SIZE UPGRADES ===== */
.hero__title          { font-size: clamp(1.2rem, 2.2vw, 1.65rem); }
.empathy__item p      { font-size: clamp(1.1rem, 1.7vw, 1.35rem); }
.empathy__bottom-text { font-size: 1.2rem; }
.empathy__bottom-btn  { font-size: 1.05rem; }
.proof__stat-label    { font-size: 0.95rem; }
.proof__career-year   { font-size: 0.9rem; }
.proof__career-co     { font-size: 1.05rem; }
.proof__career-desc   { font-size: 0.95rem; }
.offers__desc         { font-size: 1rem; line-height: 1.75; }
.offers__topics li    { font-size: 0.95rem; }
.ai-highlight__case-title { font-size: 1.4rem; }
.ai-highlight__case-desc  { font-size: 1rem; }
.contact__subtitle    { font-size: 1.2rem; }

/* ===== PROOF — 강의 사진 + 메시지 ===== */
.proof__feature {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 2.5rem;
  align-items: center;
  max-width: 1100px;
  margin: 2.5rem auto 3rem;
}
.proof__feature-img {
  border: 1px solid var(--black);
  overflow: hidden;
  background: var(--black);
  aspect-ratio: 4 / 5;
}
.proof__feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--transition);
}
.proof__feature-img:hover img {
  transform: scale(1.03);
}
.proof__feature-text {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.proof__feature-quote {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  line-height: 1.6;
  color: var(--black);
  margin: 0;
  letter-spacing: -0.01em;
}
.proof__feature-quote strong {
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 1px;
}
.proof__feature-caption {
  font-size: 0.85rem;
  color: var(--black);
  opacity: 0.6;
  margin: 0;
  letter-spacing: 0.02em;
}
@media (max-width: 768px) {
  .proof__feature {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 1.5rem auto 2rem;
  }
  .proof__feature-img {
    aspect-ratio: 4 / 3;
    max-height: 420px;
  }
}

/* ===== QUOTE 섹션 (김대식 교수 인용) ===== */
.quote-section {
  background: var(--black);
  color: var(--white);
  padding: 5rem 1.5rem;
}
.quote-section__inner {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.quote-section__mark {
  width: 48px;
  height: 40px;
  color: var(--accent);
  margin: 0 auto 1.5rem;
  display: block;
  opacity: 0.85;
}
.quote-section__text {
  font-size: clamp(1.25rem, 2.6vw, 1.8rem);
  line-height: 1.55;
  font-weight: 500;
  color: var(--white);
  margin: 0 0 2rem;
  letter-spacing: -0.01em;
}
.quote-section__text strong {
  font-weight: 700;
  color: #fff;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}
.quote-section__source {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(246, 236, 219, 0.2);
}
.quote-section__source-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}
.quote-section__source-role {
  font-size: 0.85rem;
  color: var(--white);
  opacity: 0.65;
}
.quote-section__source-channel {
  font-size: 0.78rem;
  color: var(--white);
  opacity: 0.5;
  margin-top: 0.25rem;
}
@media (max-width: 640px) {
  .quote-section { padding: 3.5rem 1rem; }
  .quote-section__mark { width: 36px; height: 30px; margin-bottom: 1rem; }
  .quote-section__text { line-height: 1.5; }
}

/* ===== USE CASES 갤러리 (17개 카드 / 5개 카테고리) ===== */
.use-cases {
  background: var(--white);
  padding: 6rem 1.5rem 5rem;
}
.use-cases__inner {
  max-width: 1200px;
  margin: 0 auto;
}
.use-cases__intro {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--black);
  margin: 1.5rem 0 0;
  max-width: 760px;
}
.use-cases__intro strong {
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 1px;
}

/* 카테고리 헤더 */
.use-cases__category {
  margin-top: 4rem;
}
.use-cases__category-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--black);
  margin-bottom: 2rem;
}
.use-cases__category-num {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.use-cases__category-label {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
}
.use-cases__category-desc {
  margin-left: auto;
  font-size: 0.9rem;
  color: var(--black);
  opacity: 0.6;
}

/* 카드 그리드 */
.use-cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* 카드 */
.use-cases__card {
  background: #fff;
  border: 1px solid var(--black);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--transition), box-shadow 0.3s var(--transition);
  position: relative;
  overflow: hidden;
}
.use-cases__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px -8px rgba(0,0,0,0.18);
}
.use-cases__card--soon {
  background: #faf3e6;
  border-style: dashed;
  opacity: 0.92;
}
.use-cases__card--soon:hover {
  transform: none;
  box-shadow: none;
}

/* 썸네일 */
.use-cases__card-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--black);
  border-bottom: 1px solid var(--black);
}
.use-cases__card-thumb img,
.use-cases__card-thumb svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s var(--transition);
}
.use-cases__card:hover .use-cases__card-thumb img,
.use-cases__card:hover .use-cases__card-thumb svg {
  transform: scale(1.04);
}
.use-cases__card-thumb a {
  display: block;
  height: 100%;
}

/* 상태 배지 */
.use-cases__card-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.95);
  color: var(--black);
  border: 1px solid var(--black);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  z-index: 2;
}
.use-cases__card-badge--live { background: var(--accent); color: #fff; border-color: var(--accent); }
.use-cases__card-badge--video { background: #fff; color: var(--black); }
.use-cases__card-badge--shot { background: var(--white); color: var(--black); }
.use-cases__card-badge--soon { background: transparent; color: var(--black); opacity: 0.7; }
.use-cases__card-badge .dot {
  width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}

/* 카드 정보 영역 */
.use-cases__card-body {
  padding: 1.5rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
  background: #fdfaf3;
}
.use-cases__card--soon .use-cases__card-body { background: transparent; }
.use-cases__card-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}
.use-cases__card--soon .use-cases__card-label { color: var(--black); opacity: 0.55; }
.use-cases__card-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--black);
  margin: 0;
}

/* BEFORE → AFTER */
.use-cases__card-baf {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.5rem;
  align-items: stretch;
  margin-top: 0.5rem;
  padding: 0.75rem;
  background: var(--white);
  border: 1px solid rgba(26,26,26,0.12);
}
.use-cases__card--soon .use-cases__card-baf { background: rgba(255,255,255,0.5); }
.use-cases__card-baf-col {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.use-cases__card-baf-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--black);
  opacity: 0.55;
}
.use-cases__card-baf-text {
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--black);
}
.use-cases__card-baf-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 700;
}

/* 태그 */
.use-cases__card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}
.use-cases__card-tags span {
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  background: var(--white);
  border: 1px solid rgba(26,26,26,0.2);
  color: var(--black);
  opacity: 0.85;
}
.use-cases__card--soon .use-cases__card-tags span { background: rgba(255,255,255,0.5); }

/* 카드 CTA */
.use-cases__card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: gap 0.2s ease;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}
.use-cases__card-cta:hover { gap: 0.6rem; }
.use-cases__card-cta svg { width: 14px; height: 14px; }

/* 통합 CTA */
.use-cases__bottom-cta {
  margin-top: 5rem;
  padding: 2.5rem 2rem;
  background: var(--black);
  color: var(--white);
  text-align: center;
}
.use-cases__bottom-cta-text {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 1.5rem;
}
.use-cases__bottom-cta-text strong { color: var(--white); }
.use-cases__bottom-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: transform 0.2s ease;
}
.use-cases__bottom-cta-btn:hover { transform: translateY(-2px); }

/* USE CASES 비마케터·겸업 스코프 박스 */
.use-cases__scope {
  margin-top: 4rem;
  padding: 1.75rem 2rem;
  border: 1.5px solid rgba(26, 26, 26, 0.14);
  border-left: 4px solid var(--accent);
  background: rgba(26, 26, 26, 0.025);
  text-align: center;
}
.use-cases__scope-tag {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.3rem 0.85rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.use-cases__scope-text {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--black);
}
.use-cases__scope-text strong { color: var(--accent); }
.use-cases__scope-sub {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--gray, #6b5d48);
}
.use-cases__scope-link {
  display: inline-block;
  margin-top: 1.1rem;
  padding: 0.6rem 1.4rem;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
  transition: background 0.25s ease, color 0.25s ease;
}
.use-cases__scope-link:hover {
  background: var(--accent);
  color: #fff;
}

/* USE CASES 반응형 */
@media (max-width: 1024px) {
  .use-cases__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .use-cases { padding: 4rem 1rem 3rem; }
  .use-cases__grid { grid-template-columns: 1fr; }
  .use-cases__category-head { flex-wrap: wrap; gap: 0.5rem; }
  .use-cases__category-num { font-size: 2rem; }
  .use-cases__category-label { font-size: 1.25rem; }
  .use-cases__category-desc { margin-left: 0; width: 100%; }
  .use-cases__card-baf { grid-template-columns: 1fr; gap: 0.5rem; }
  .use-cases__card-baf-arrow { transform: rotate(90deg); }
}

/* ===== PROCESS — 컨설팅 진행 방식 + 가격 가이드 ===== */
.process__intro {
  max-width: 640px;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--gray-600);
  margin-bottom: 3.5rem;
}
.process__intro strong { color: var(--black); font-weight: 700; }

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}
.process__step {
  border: 1px solid var(--black);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: all 0.4s var(--transition);
}
.process__step:hover { background: var(--black); color: var(--white); }
.process__step-num {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--accent);
}
.process__step h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.process__step p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--gray-600);
  transition: color 0.4s ease;
}
.process__step:hover p { color: var(--gray-400); }

/* 세팅 범위 */
.process__scope {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}
.process__scope-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--gray-600);
  white-space: nowrap;
}
.process__scope-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.process__scope-tags span {
  border: 1px solid var(--gray-200);
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--black);
}

/* 안내 문구 — 다크 블록 */
.process__guide {
  background: var(--black);
  color: var(--gray-400);
  padding: 2.25rem 2.5rem;
  font-size: 0.98rem;
  line-height: 1.75;
  text-align: center;
}
.process__guide strong { color: var(--white); font-weight: 700; }

.process__cta {
  display: inline-block;
  margin-top: 2.5rem;
  padding: 1rem 2.25rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  transition: transform 0.2s ease;
}
.process__cta:hover { transform: translateY(-2px); }

@media (max-width: 900px) {
  .process__steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .process__steps { grid-template-columns: 1fr; }
  .process__guide { padding: 2rem 1.5rem; }
}