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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: #1a1a1a;
  background: #f3f1ec;
  line-height: 1.8;
}

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

/* ===========================
   Layout
   =========================== */
.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===========================
   Common Section
   =========================== */
/* ===========================
   Resume Layout
   =========================== */
.resume-page {
  padding: 48px 0 72px;
}

.resume-page .container {
  max-width: 920px;
  background: #fffdf8;
  border: 1px solid #d9d2c4;
  box-shadow: 0 12px 40px rgba(41, 32, 20, 0.08);
  padding: 40px;
}

.resume-header {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 32px;
  align-items: start;
  padding-bottom: 32px;
  border-bottom: 1px solid #ddd3c2;
}

.resume-header__photo {
  aspect-ratio: 3 / 4;
  border: 1px solid #d8d1c4;
  background: linear-gradient(180deg, #f4eee3 0%, #e5dccd 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #766b5b;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.resume-header__label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #8a7f6f;
  margin-bottom: 10px;
}

.resume-header__name {
  font-size: 2.6rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}

.resume-header__headline {
  font-size: 1.05rem;
  color: #4f473d;
  margin-bottom: 20px;
}

.resume-header__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.resume-header__meta li {
  font-size: 0.92rem;
  color: #5f5547;
}

.resume-header__meta span {
  font-weight: 700;
  margin-right: 6px;
}

.resume-header__meta a {
  color: #1a1a1a;
  border-bottom: 1px solid #cabfae;
}

.resume-section {
  padding: 28px 0;
  border-bottom: 1px solid #eee6d9;
}

.resume-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.resume-section__title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #8a7f6f;
  margin-bottom: 18px;
}

.resume-section__body p {
  color: #3f382f;
  margin-bottom: 10px;
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.strength-card {
  padding: 20px;
  background: #fbf6ee;
  border: 1px solid #e7dccd;
}

.strength-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.strength-card__description {
  font-size: 0.92rem;
  color: #4f473d;
  line-height: 1.7;
}

.resume-list,
.resume-side-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.resume-item {
  padding-bottom: 20px;
  border-bottom: 1px solid #f0e9dd;
}

.resume-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.resume-item__header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
  margin-bottom: 8px;
}

.resume-item__title,
.resume-side-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.resume-item__role,
.resume-item__period,
.resume-side-item p,
.certification-list li {
  font-size: 0.92rem;
  color: #5e564c;
}

.resume-item__summary {
  font-size: 0.95rem;
  color: #3f382f;
  margin-bottom: 10px;
}

.resume-item__highlights {
  padding-left: 18px;
  color: #3f382f;
}

.resume-item__highlights li {
  margin-bottom: 6px;
}

.project-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.project-card {
  display: flex;
  flex-direction: column;
  min-height: 320px;
  background: #fcf8f1;
  border: 1px solid #e4d8c8;
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
  transform: translateY(-2px);
  border-color: #cfb79c;
  box-shadow: 0 10px 24px rgba(73, 53, 29, 0.08);
}

.project-card__thumbnail {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  min-height: 140px;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid #ded2c2;
  background:
    linear-gradient(135deg, rgba(122, 75, 34, 0.08), rgba(255, 253, 248, 0.1)),
    linear-gradient(180deg, #f1e8db 0%, #e3d6c5 100%);
  overflow: hidden;
}

.project-card__thumbnail::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(122, 75, 34, 0.22);
}

.project-card__thumbnail-label,
.project-card__thumbnail-cta {
  position: relative;
  z-index: 1;
}

.project-card__thumbnail-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7b6b59;
}

.project-card__thumbnail-cta {
  font-size: 0.78rem;
  font-weight: 700;
  color: #7a4b22;
  opacity: 0.72;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.project-card:hover .project-card__thumbnail-cta {
  opacity: 1;
  transform: translateX(2px);
}

.project-card__tag {
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 14px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #efe4d5;
  color: #7d6950;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.project-card__meta {
  font-size: 0.88rem;
  color: #6c6256;
  margin-bottom: 12px;
}

.project-card__description {
  flex-grow: 1;
  font-size: 0.94rem;
  color: #453d34;
  line-height: 1.7;
  margin-bottom: 18px;
}

.project-card__link {
  font-size: 0.84rem;
  font-weight: 700;
  color: #7a4b22;
  transition: transform 0.2s ease, color 0.2s ease;
}

.project-card:hover .project-card__link {
  color: #5f3412;
  transform: translateX(2px);
}

.resume-section--split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
}

.resume-side-stack {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.skill-grid {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-chip {
  font-size: 0.88rem;
  font-weight: 600;
  color: #3f382f;
  background: #f5efe6;
  border: 1px solid #dfd3c2;
  border-radius: 999px;
  padding: 8px 12px;
}

.certification-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ===========================
   Case Hero (detail page)
   =========================== */
.case-hero {
  padding: 48px 0 56px;
  background: #fff;
  border-bottom: 1px solid #eaeaea;
}

.back-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  color: #888;
  margin-bottom: 32px;
  transition: color 0.2s;
}

.back-link:hover {
  color: #1a1a1a;
}

.case-hero__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  background: #1a1a1a;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.case-hero__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 16px;
}

.case-hero__headline {
  font-size: 1.05rem;
  color: #555;
  line-height: 1.75;
  margin-bottom: 32px;
}

.case-hero__role {
  background: #f7f7f7;
  border: 1px solid #eaeaea;
  border-radius: 10px;
  padding: 20px 24px;
}

.case-hero__role-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #999;
  margin-bottom: 8px;
}

.case-hero__role p {
  font-size: 0.925rem;
  color: #444;
  line-height: 1.7;
}

/* ===========================
   Case Article
   =========================== */
.case-article {
  padding: 64px 0 48px;
}

/* Case Section */
.case-section {
  margin-bottom: 56px;
}

.case-section__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #f0f0f0;
}

.case-section p {
  color: #333;
  margin-bottom: 12px;
}

.case-section ul,
.case-section ol {
  padding-left: 20px;
  color: #333;
}

.case-section li {
  margin-bottom: 8px;
  line-height: 1.75;
}

/* Nested list */
.case-section li ul {
  margin-top: 8px;
}

/* ===========================
   TL;DR
   =========================== */
.tldr {
  background: #f0f4ff;
  border: 1px solid #d8e0f8;
  border-radius: 12px;
  padding: 28px;
}

.tldr__list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tldr__item {
  display: flex;
  gap: 16px;
}

.tldr__item dt {
  flex-shrink: 0;
  width: 48px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #4a6cf7;
  padding-top: 2px;
}

.tldr__item dd {
  font-size: 0.925rem;
  color: #333;
  line-height: 1.7;
}

/* ===========================
   Solution Blocks
   =========================== */
.solution-blocks {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.solution-block {
  background: #fff;
  border: 1px solid #eaeaea;
  border-radius: 10px;
  padding: 24px;
}

.solution-block h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.solution-block ul {
  padding-left: 20px;
  color: #444;
}

.solution-block li {
  margin-bottom: 6px;
  font-size: 0.925rem;
  line-height: 1.7;
}

/* ===========================
   Impact Cards
   =========================== */
.impact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.impact-card {
  background: #fff;
  border: 1px solid #eaeaea;
  border-radius: 12px;
  padding: 24px;
}

.impact-card__label {
  font-size: 0.8rem;
  font-weight: 500;
  color: #888;
  margin-bottom: 6px;
}

.impact-card__change {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 4px;
}

.impact-card__result {
  font-size: 0.875rem;
  font-weight: 600;
  color: #4a6cf7;
}

.impact-details {
  padding-left: 20px;
  color: #444;
}

.impact-details li {
  margin-bottom: 8px;
  font-size: 0.925rem;
  line-height: 1.7;
}

/* ===========================
   Insight
   =========================== */
.insight {
  background: #fafafa;
  border: 1px solid #eaeaea;
  border-radius: 12px;
  padding: 28px 32px;
  position: relative;
}

.insight::before {
  content: "\201C";
  font-size: 3rem;
  color: #ddd;
  position: absolute;
  top: 8px;
  left: 14px;
  line-height: 1;
}

.insight p {
  font-size: 1rem;
  color: #444;
  line-height: 1.85;
  margin-bottom: 12px;
}

.insight p:last-child {
  margin-bottom: 0;
}

/* ===========================
   Case Back Link
   =========================== */
.case-back {
  padding-top: 32px;
  border-top: 1px solid #eaeaea;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 640px) {
  .resume-page {
    padding: 20px 0 40px;
  }

  .resume-page .container {
    padding: 24px 20px;
  }

  .resume-header {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .resume-header__photo {
    width: 140px;
  }

  .resume-header__name {
    font-size: 2rem;
  }

  .resume-item__header,
  .resume-section--split {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .project-list {
    grid-template-columns: 1fr;
  }

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

  .container {
    padding: 0 20px;
  }
}