:root {
  --navy: #071b33;
  --navy-2: #0b2a52;
  --blue: #00d487;
  --blue-2: #66ffb2;
  --bg: #f4f8ff;
  --bg-2: #eef5ff;
  --white: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --shadow: 0 20px 42px rgba(7, 27, 51, 0.12);
  --max: 1120px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-fast: 180ms;
  --motion-normal: 720ms;
  --motion-slow: 900ms;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;

  /* 스크롤이 없는 화면에서도 스크롤바 영역을 미리 확보하여
     Resume처럼 스크롤이 생기는 화면으로 이동해도 header 메뉴가 좌우로 흔들리지 않게 합니다. */
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  font-family: Inter, Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

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

button {
  font: inherit;
}

.site {
  min-height: 100dvh;
  background: var(--bg);
  display: flex;
  flex-direction: column;
}

main,
.main {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

/* ── Header ── */
.header {
  height: 82px;
  padding: 0 44px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #eef2f7;
  position: sticky;
  top: 0;
  z-index: 100;
  flex: 0 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.brand-mark {
  width: 12px;
  height: 12px;
  background: var(--blue);
  display: inline-block;
  flex-shrink: 0;
}

.brand-name {
  font-weight: 900;
  font-size: 23px;
  letter-spacing: -0.04em;
}

.brand-role {
  color: var(--muted);
  font-size: 14px;
}

.slash {
  color: #94a3b8;
  font-size: 16px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav a {
  transition: color 0.15s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--blue);
}

/* ── Home / About ── */
.home {
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  background: var(--bg);
  overflow: hidden;
  display: flex;
}

.home-left-bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 43%;
  height: 100%;
  background: linear-gradient(135deg, #0b1f13 0%, #16452f 100%);
  overflow: hidden;
  z-index: 0;
}

.matrix-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.home-left-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 124, 41, 0.6);
  z-index: 2;
  pointer-events: none;
}

.home-inner {
  max-width: var(--max);
  width: 100%;
  flex: 1 1 auto;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 420px 1fr;
  align-items: center;
  gap: 96px;
  position: relative;
  z-index: 1;
  padding: 40px 24px;
}

.profile-card {
  width: 380px;
  min-height: 540px;
  background: rgba(101, 89, 6, 0.6);
  color: var(--white);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.12);
  justify-self: end;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 58px;
  position: relative;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.50);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ── Profile Photo ──
   이미지 교체: images/profile.jpg 파일을 교체하면 자동 반영됩니다.
   파일이 없으면 이니셜 폴백(span.profile-initials)이 표시됩니다. */
.profile-photo {
  width: 188px;
  height: 188px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(255,255,255,0.95);
  position: relative;
  background: radial-gradient(circle at 50% 42%, #f8fafc 0 33%, transparent 34%),
              linear-gradient(145deg, #dbeafe, #f8fafc);
}

.profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.profile-photo img.hidden,
.profile-photo img[src=""] {
  display: none;
}

.profile-initials {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 54px;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.08em;
}

.profile-card h1 {
  margin: 42px 0 14px;
  font-size: 36px;
  line-height: 1.05;
  text-align: center;
  letter-spacing: -0.06em;
}

.small-line {
  width: 56px;
  height: 3px;
  background: var(--blue);
  margin: 0 auto;
}

.profile-card p {
  margin: 32px 0 0;
  font-size: 14px;
  letter-spacing: 0.28em;
  text-align: center;
}

.profile-social {
  margin-top: auto;
  width: 100%;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  background: rgba(255, 255, 255, 0.10);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.profile-social a {
  color: var(--white);
  transition: opacity 0.15s;
}

.profile-social a:hover {
  opacity: 0.75;
}

.profile-badge-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  width: 100%;
  margin: 18px auto 0;
}

.icon-badge {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.26);
}

.icon-badge svg {
  width: 27px;
  height: 27px;
  stroke: rgba(255, 255, 255, 0.95);
  stroke-width: 1.9;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-badge:hover {
  transform: translateY(-2px);
  border-color: rgba(102, 255, 178, 0.42);
}

.profile-card p {
  margin: 26px 0 0;
}

.intro {
  max-width: 560px;
}

.intro h2 {
  font-size: 92px;
  line-height: 0.96;
  margin: 0 0 20px;
  font-weight: 900;
  letter-spacing: -0.07em;
  color: var(--navy);
  animation: fadeIn var(--motion-slow) var(--ease-out) 120ms both;
}

.intro h3 {
  font-size: 27px;
  line-height: 1.35;
  margin: 0 0 26px;
  letter-spacing: -0.04em;
  font-weight: 700;
  animation: fadeUp var(--motion-normal) var(--ease-out) 320ms both;
}

.cta-row {
  display: flex;
  gap: 12px;
  margin: 0 0 46px;
}

.btn {
  min-width: 136px;
  height: 40px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 900;
  border: 1px solid var(--navy);
}

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

.btn.outline {
  background: var(--white);
  color: var(--navy);
}

.intro p {
  width: 470px;
  max-width: 100%;
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 15px;
  word-break: keep-all;
  animation: fadeUp var(--motion-normal) var(--ease-out) both;
}

.intro p:nth-of-type(1) {
  animation-delay: 520ms;
}

.intro p:nth-of-type(2) {
  animation-delay: 680ms;
}

.intro p:nth-of-type(3) {
  animation-delay: 840ms;
}

.tooltip-link {
  position: relative;
}

.tooltip-link::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  padding: 6px 10px;
  border-radius: 4px;
  background: rgba(20, 55, 34, 0.96);
  color: #eafff5;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.28);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
  opacity: 0; 
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.tooltip-link:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(-2px);
}

/* ── Motion ── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .profile-card,
  .intro h2,
  .intro h3,
  .intro p {
    animation: none !important;
  }

  .profile-card {
    transition: none;
  }

  .profile-card:hover {
    transform: none;
    box-shadow: var(--shadow);
  }
}

@media (max-width: 560px) {
  .profile-badge-icons {
    width: 100%;
    max-width: 248px;
    gap: 8px;
    margin-top: 18px;
  }

  .icon-badge {
    width: 38px;
    height: 38px;
  }

  .icon-badge svg {
    width: 18px;
    height: 18px;
  }
}

/* ── Section (shared) ── */
.section {
  padding: 104px 24px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin-bottom: 60px;
}

.section-title h2 {
  margin: 0;
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -0.05em;
}

.section-head {
  width: 560px;
  max-width: 100%;
  margin: 0 auto 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-head h3 {
  margin: 0;
  font-size: 21px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

/* ── Resume ── */
.download {
  height: 34px;
  padding: 0 22px;
  border: 0;
  border-radius: 4px;
  background: var(--blue);
  color: var(--white);
  font-size: 11px;
  font-weight: 900;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.resume-card-featured {
  position: relative;
  border-left: 6px solid var(--blue);
  background: linear-gradient(90deg, rgba(0, 80, 255, 0.06), var(--white) 38%);
}

.resume-badge {
  position: relative;
  overflow: hidden;
  width: fit-content;
  margin-bottom: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: #1746d6;
  color: #ffffff;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.resume-badge::after {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  width: 45%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.45),
    transparent
  );
  transform: skewX(-20deg);
  animation: badgeShine 2.8s ease-in-out infinite;
}

.career-highlights {
  margin: 14px 0 0;
  padding-left: 18px;
}

.career-highlights li {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 4px;
}

@keyframes badgeShine {
  0% {
    left: -80%;
  }
  45%, 100% {
    left: 130%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .resume-badge,
  .resume-badge::after {
    animation: none;
  }
}

.resume-card {
  width: 560px;
  min-height: 210px;
  max-width: 100%;
  margin: 0 auto 34px;
  background: var(--white);
  box-shadow: var(--shadow);
  padding: 52px 42px;
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 36px;
}

.resume-left {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.period {
  color: var(--blue);
  font-size: 16px;
  font-weight: 900;
}

.resume-left strong:not(.period) {
  font-size: 14px;
}

.resume-left small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.resume-right p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
  word-break: keep-all;
}

.skill-card {
  width: 560px;
  max-width: 100%;
  margin: 54px auto 42px;
  background: var(--white);
  box-shadow: var(--shadow);
  padding: 46px 42px;
}

.skill-card h3 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -0.04em;
}

.skill-card h3 + .skill-grid {
  margin-bottom: 38px;
}

.skill-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 14px;
  word-break: keep-all;
}

.skill-card p + p {
  margin-top: 14px;
}

.section-head {
  width: 560px;
  max-width: 100%;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.skill-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 34px;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.square {
  width: 9px;
  height: 9px;
  background: var(--blue);
  flex: 0 0 auto;
}

/* ── Projects ── */
.section-desc {
  width: 600px;
  max-width: 100%;
  margin: -34px auto 58px;
  text-align: center;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
  word-break: keep-all;
}

.project-card {
  width: 640px;
  max-width: 100%;
  min-height: 270px;
  margin: 0 auto 52px;
  display: grid;
  grid-template-columns: 1fr 300px;
  background: var(--white);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.project-text {
  position: relative;
  padding: 54px 42px;
}

.project-bar {
  position: absolute;
  top: 58px;
  left: 0;
  width: 8px;
  height: 48px;
  background: var(--blue);
}

.project-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;

  margin: 0 0 4px;
  color: var(--blue);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.project-title .resume-badge {
  margin-bottom: 0;
  padding: 4px 8px;
  font-size: 9px;
  line-height: 1;
  flex-shrink: 0;
}

.project-role {
  display: block;
  margin-bottom: 34px;
  font-size: 12px;
  font-weight: 900;
}

.project-text p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
  word-break: keep-all;
}

/* ── Project image area ──
   이미지 교체: .project-image 안에 <img> 태그를 넣으면 표시됩니다.
   이미지가 없으면 CSS 배경 그래픽이 표시됩니다. */
.project-image {
  min-height: 270px;
  background: linear-gradient(135deg, #dbeafe, #f8fafc);
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: relative;
  z-index: 1;
}

.project-image::before {
  content: "";
  position: absolute;
  inset: 44px 32px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  box-shadow: 0 18px 28px rgba(7,27,51,0.22);
  transform: rotate(-8deg);
}

.project-image::after {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--white);
  font-weight: 900;
  letter-spacing: -0.03em;
  text-align: center;
  padding: 0 44px;
  white-space: pre;
}

.project-image.has-img::before,
.project-image.has-img::after {
  display: none;
}

.project-image.variant-2 {
  background: #f8fafc;
}

.project-image.variant-2::before {
  inset: 74px 48px;
  border-radius: 10px;
  transform: none;
  background: linear-gradient(180deg, #ffffff 0 20%, #dbeafe 20% 100%);
  border: 10px solid var(--navy);
}

.project-image.variant-3 {
  background: linear-gradient(135deg, #eff6ff, #ffffff);
}

.project-image.variant-3::before {
  inset: 38px 70px;
  border-radius: 22px;
  transform: rotate(12deg);
  background: linear-gradient(135deg, var(--blue), #38bdf8);
  border: 12px solid var(--navy);
}

/* 공통: 프로젝트별 CSS 이미지 */
.project-image.project-img-nfc::before,
.project-image.project-img-pdf::before,
.project-image.project-img-ai::before,
.project-image.project-img-scada::before,
.project-image.project-img-booking::before,
.project-image.project-img-nms::before,
.project-image.project-img-kiosk::before {
  inset: 42px 44px;
  border-radius: 18px;
  transform: none;
  border: 10px solid var(--navy);
  box-shadow: 0 18px 28px rgba(7, 27, 51, 0.2);
}

/* 01 NFC/QR: 카드 + QR 느낌 */
.project-img-nfc-qr {
  background: linear-gradient(135deg, #eef7ff, #f8fafc);
  display: grid;
  place-items: center;
}

.project-img-nfc-qr::before,
.project-img-nfc-qr::after {
  display: none;
}

.nfc-qr-illust {
  position: relative;
  width: 210px;
  height: 282px;
  color: var(--navy);
}

.nfc-phone {
  position: absolute;
  left: 50%;
  top: 0;
  width: 88px;
  height: 124px;
  border: 8px solid currentColor;
  border-radius: 10px;
  background: #ffffff;
  transform: translateX(-50%);
  display: grid;
  place-items: center;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.05em;
}

.nfc-phone::before,
.nfc-phone::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 32px;
  height: 8px;
  border-radius: 999px;
  background: currentColor;
  transform: translateX(-50%);
}

.nfc-phone::before {
  top: 12px;
}

.nfc-phone::after {
  bottom: 12px;
}

.nfc-waves {
  position: absolute;
  top: 28px;
  width: 54px;
  height: 86px;
}

.nfc-waves span {
  position: absolute;
  top: 50%;
  border: 7px solid currentColor;
  border-top-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: translateY(-50%);
}

.nfc-waves.left {
  left: 0;
}

.nfc-waves.left span {
  border-right-color: transparent;
}

.nfc-waves.left span:nth-child(1) {
  left: 32px;
  width: 16px;
  height: 38px;
}

.nfc-waves.left span:nth-child(2) {
  left: 18px;
  width: 30px;
  height: 58px;
}

.nfc-waves.left span:nth-child(3) {
  left: 2px;
  width: 46px;
  height: 78px;
}

.nfc-waves.right {
  right: 0;
}

.nfc-waves.right span {
  border-left-color: transparent;
}

.nfc-waves.right span:nth-child(1) {
  right: 32px;
  width: 16px;
  height: 38px;
}

.nfc-waves.right span:nth-child(2) {
  right: 18px;
  width: 30px;
  height: 58px;
}

.nfc-waves.right span:nth-child(3) {
  right: 2px;
  width: 46px;
  height: 78px;
}

.qr-icon {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 120px;
  height: 120px;
  transform: translateX(-50%);
  color: var(--navy);
  display: block;
}

/* 02 PDF Manager: 문서 + 라인 */
.project-image.project-img-pdf-bill {
  background: linear-gradient(135deg, #f8fafc, #eef5ff);
  display: grid;
  place-items: center;
}

.project-image.project-img-pdf-bill::before,
.project-image.project-img-pdf-bill::after {
  display: none;
}

.pdf-bill-card {
  width: 180px;
  height: 230px;
  overflow: hidden;
  border-radius: 12px;
  background: #ffffff;
  border: 8px solid var(--navy);
  box-shadow: 0 18px 28px rgba(7, 27, 51, 0.22);
}

.pdf-bill-header {
  height: 46px;
  padding: 10px 12px;
  background: linear-gradient(135deg, #0b5f55, var(--blue));
  color: #ffffff;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.pdf-bill-header span {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.pdf-bill-header strong {
  font-size: 16px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.pdf-bill-body {
  padding: 12px;
}

.pdf-bill-amount {
  height: 50px;
  padding: 8px 10px;
  border-radius: 9px;
  background: rgba(0, 212, 135, 0.08);
  border: 1px solid rgba(0, 212, 135, 0.35);
}

.pdf-bill-amount span {
  display: block;
  color: #0b5f55;
  font-size: 8px;
  font-weight: 900;
}

.pdf-bill-amount strong {
  display: block;
  margin-top: 5px;
  color: #0b3f3a;
  font-size: 22px;
  line-height: 1;
  font-weight: 900;
}

.pdf-bill-info {
  position: absolute;
  right: 20px;
  top: 62px;
  width: 70px;
  height: 50px;
  padding: 8px;
  border-radius: 9px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
}

.pdf-bill-info span {
  display: block;
  height: 5px;
  margin-bottom: 8px;
  border-radius: 999px;
  background: var(--navy);
  opacity: 0.9;
}

.pdf-bill-info span:nth-child(1) {
  width: 42px;
  margin-left: auto;
}

.pdf-bill-info span:nth-child(2) {
  width: 50px;
  margin-left: auto;
}

.pdf-bill-info span:nth-child(3) {
  width: 36px;
  margin-left: auto;
}

.pdf-bill-section {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
}

.pdf-bill-section i {
  width: 4px;
  height: 14px;
  border-radius: 999px;
  background: var(--blue);
}

.pdf-bill-section span {
  width: 92px;
  height: 8px;
  border-radius: 999px;
  background: var(--navy);
}

.pdf-bill-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 9px;
  background: #e2e8f0;
  border: 1px solid #e2e8f0;
}

.pdf-bill-table span {
  height: 15px;
  background: #f8fafc;
}

.pdf-bill-table span:nth-child(even) {
  background: #ffffff;
}

.pdf-bill-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 12px;
}

.pdf-bill-stats span {
  height: 28px;
  border-radius: 7px;
  border: 1px solid #e2e8f0;
  background:
    linear-gradient(var(--navy), var(--navy)) 8px 15px / 28px 5px no-repeat,
    linear-gradient(#94a3b8, #94a3b8) 8px 8px / 22px 4px no-repeat,
    #ffffff;
}

/* 03 KnowledgeOps AI: 노드/그래프 */
.project-image.project-img-knowledgeops {
  background: linear-gradient(135deg, #eff6ff, #ffffff);
  display: grid;
  place-items: center;
}

.project-image.project-img-knowledgeops::before,
.project-image.project-img-knowledgeops::after {
  display: none;
}

.knowledgeops-visual {
  width: 176px;
  height: 210px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  box-shadow: 0 18px 28px rgba(7, 27, 51, 0.22);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: #ffffff;
}

.knowledgeops-icon {
  width: 112px;
  height: 112px;
  display: block;
  fill: currentColor;
}

.knowledgeops-label {
  font-size: 30px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.04em;
}


/* 04 Mini SCADA: 관제 차트 */
.project-image.project-img-scada-ui {
  background: linear-gradient(135deg, #ecfeff, #f8fafc);
  display: grid;
  place-items: center;
}

.project-image.project-img-scada-ui::before,
.project-image.project-img-scada-ui::after {
  display: none;
}

.scada-panel {
  width: 186px;
  height: 230px;
  border-radius: 18px;
  background: var(--navy);
  box-shadow: 0 18px 28px rgba(7, 27, 51, 0.22);
  padding: 14px 14px 20px;
  color: #ffffff;
}

.scada-header {
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.scada-header span {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.scada-header strong {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--blue);
  color: var(--navy);
  font-size: 9px;
  font-weight: 900;
}

.scada-body {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr 58px;
  gap: 10px;
}

.scada-chart {
  height: 82px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  display: grid;
  place-items: center;
  color: var(--blue);
}

.scada-chart svg {
  width: 92%;
  height: 76%;
}

.scada-metrics {
  display: grid;
  gap: 6px;
}

.scada-metrics div {
  height: 24px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.12);
  padding: 4px 6px;
}

.scada-metrics span {
  display: block;
  font-size: 6px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.62);
}

.scada-metrics b {
  display: block;
  margin-top: -1px;
  color: #ffffff;
  font-size: 10px;
  line-height: 1;
}

.scada-factory {
  grid-column: 1 / -1;
  width: 100%;
  height: 58px;
  margin-top: 8px;
  color: var(--blue);
}

/* 05 Booking Slot: 캘린더 */
.project-image.project-img-booking.has-img {
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #f8fafc, #eef5ff);
}

.project-image.project-img-booking.has-img img {
  width: 70%;
  height: 70%;
  object-fit: contain;
  display: block;
}

/* 06 NMS Monitor: 네트워크 관제 */
.project-image.project-img-nms {
  background: linear-gradient(135deg, #f0fdf4, #f8fafc);
  display: grid;
  place-items: center;
}

.project-image.project-img-nms::before,
.project-image.project-img-nms::after {
  display: none;
}

.nms-monitor-panel {
  width: 180px;
  height: 250px;
  border-radius: 18px;
  background: #ffffff;
  border: 10px solid var(--navy);
  box-shadow: 0 18px 28px rgba(7, 27, 51, 0.22);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--navy);
  position: relative;
  padding: 22px 12px 14px;
}

.nms-monitor-panel::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  width: 34px;
  height: 5px;
  border-radius: 999px;
  background: var(--navy);
  transform: translateX(-50%);
}

.nms-chart-icon {
  width: 106px;
  height: 78px;
  flex-shrink: 0;
  display: block;
}

.nms-chart-icon rect,
.nms-chart-icon circle,
.nms-chart-icon line,
.nms-chart-icon polyline {
  fill: none;
  stroke: currentColor;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nms-chart-icon circle {
  fill: var(--navy);
}

.nms-chart-icon rect {
  fill: rgba(255, 255, 255, 0.08);
}

.nms-monitor-label {
  color: var(--navy);
  font-size: 16px;
  line-height: 1.05;
  font-weight: 900;
  text-align: center;
  letter-spacing: -0.04em;
  flex-shrink: 0;
}

/* 07 Kiosk Copilot: 키오스크 화면 + 장애 패널 */
.project-image.project-img-kiosk {
  background: linear-gradient(135deg, #f8fafc, #eef5ff);
  display: grid;
  place-items: center;
}

.project-image.project-img-kiosk::before,
.project-image.project-img-kiosk::after {
  display: none;
}

.kiosk-illust {
  position: relative;
  width: 118px;
  height: 218px;
  border-radius: 9px 9px 6px 6px;
  background: var(--navy);
  box-shadow: 0 18px 28px rgba(7, 27, 51, 0.22);
}

.kiosk-screen {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 12px;
  height: 128px;
  display: grid;
  place-items: center;
  background: #ffffff;
  border: 3px solid #0b1220;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.15;
  text-align: center;
  letter-spacing: -0.03em;
}

.kiosk-panel {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 22px;
  height: 42px;
  border-radius: 0 0 4px 4px;
  background: #08111f;
}

.kiosk-panel::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 13px;
  width: 42px;
  height: 5px;
  border-radius: 999px;
  background: rgba(0, 212, 135, 0.35);
  transform: translateX(-50%);
}

.kiosk-base {
  position: absolute;
  left: -8px;
  right: -8px;
  bottom: -14px;
  height: 10px;
  border-radius: 2px;
  background: #0b1220;
  box-shadow: 0 4px 0 rgba(7, 27, 51, 0.22);
}

.project-actions {
  display: flex;
  gap: 10px;
  margin-top: 26px;
}

.project-action {
  height: 30px;
  padding: 0 13px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 900;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.project-action:disabled,
.project-action.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(0.2);
}

.project-modal {
  --modal-accent: #1f4fd8;
  --modal-accent-soft: rgba(31, 79, 216, 0.08);
  --modal-accent-border: rgba(31, 79, 216, 0.62);
  --modal-panel-bg: #ffffff;
  --modal-section-bg: #f8fafc;
}

.project-action.detail {
  border: 0;
  background: var(--blue);
  color: var(--white);
}

.project-action.link {
  border: 1px solid rgba(0, 80, 255, 0.25);
  background: var(--white);
  color: var(--blue);
}

.project-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 28px 16px;
}

.project-modal.is-open {
  display: flex;
}

.project-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 27, 51, 0.46);
}

.project-modal-panel {
  position: relative;
  z-index: 1;
  width: 720px;
  max-width: 100%;
  max-height: calc(100vh - 56px);
  margin: 0;
  padding: 42px;
  overflow-y: auto;
  background: var(--white);
  box-shadow: 0 24px 70px rgba(7, 27, 51, 0.25);
  border: 1px solid rgba(7, 27, 51, 0.08);
}

.project-modal-close {
  position: absolute;
  top: 18px;
  right: 20px;
  border: 0;
  background: transparent;
  color: var(--navy);
  opacity: 0.75;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.project-modal-close:hover {
  opacity: 1;
}

.modal-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.modal-made-badge {
  padding: 2px 7px;
  border-radius: 999px;
  background: #ef8f46;
  color: #ffffff;
  font-style: normal;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-transform: none;
}

.project-modal-panel h3 {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.modal-hero-image {
  position: relative;
  width: 100%;
  margin: 22px 0 24px;
  border: 1px solid var(--line);
  background: #f8fafc;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(7, 27, 51, 0.10);
}

.modal-hero-image img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #f8fafc;
  border: 1px solid #646765;
}

.modal-image-zoom {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;

  width: 34px;
  height: 34px;
  border: 1px solid rgba(226, 232, 240, 0.95);
  background: rgba(255, 255, 255, 0.92);
  color: var(--navy);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(7, 27, 51, 0.16);
}

.modal-image-zoom:hover {
  background: var(--blue);
  color: var(--navy);
}

.modal-image-zoom svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.modal-summary {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
  word-break: keep-all;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 28px;
}

.modal-tags span {
  padding: 6px 10px;
  border-radius: 999px;
  background: #f3f4f6;
  color: var(--text);
  border: 1px solid rgba(15, 23, 42, 0.22);
  font-size: 11px;
  font-weight: 800;
}

.modal-section p,
.modal-section li {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  word-break: keep-all;
}

.modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.modal-section {
  margin-top: 18px;
  padding: 20px;
  background: var(--modal-section-bg);
  border-left: 4px solid var(--blue);
  border-radius: 0 8px 8px 0;
}

.modal-section h4 {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.modal-section p,
.modal-section li {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  word-break: keep-all;
}

.modal-section p {
  margin: 0;
}

.modal-section ul {
  margin: 0;
  padding-left: 18px;
}

@media (max-width: 720px) {
  .modal-grid {
    grid-template-columns: 1fr;
  }

  .project-modal-panel {
    padding: 34px 24px;
  }
}

/* ── Contact ── */
#contact.section,
.contact-section {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.contact-card {
  width: 640px;
  max-width: 100%;
  min-height: 0;
  margin: 0 auto;
  background: var(--white);
  box-shadow: var(--shadow);
  padding: 48px 70px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 30px;
}

input,
textarea {
  display: block;
  width: 100%;
  border: 0;
  border-bottom: 2px solid var(--navy);
  background: transparent;
  padding: 15px 0 9px;
  font: inherit;
  outline: none;
  resize: vertical;
}

textarea {
  min-height: 108px;
  max-height: 160px;
}

.send {
  border: 0;
  border-radius: 4px;
  height: 42px;
  min-width: 104px;
  background: var(--blue);
  color: var(--white);
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

/* ── Footer ── */
.footer {
  min-height: 82px;
  padding: 22px 44px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
  flex: 0 0 auto;
}

.footer-left {
  color: var(--muted);
  line-height: 1.5;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 62px;
}

.footer-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
}

.footer-block strong {
  color: var(--text);
}

/* ── Responsive : tablet (980px 이하) ── */
@media (max-width: 980px) {
  .header {
    height: auto;
    padding: 18px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .nav {
    gap: 20px;
    flex-wrap: wrap;
  }

  .home-left-bg {
    width: 100%;
    height: 100%;
  }

  .home-inner {
    grid-template-columns: 1fr;
    min-height: unset;
    gap: 40px;
    padding: 52px 24px 72px;
  }

  .profile-card {
    justify-self: center;
    width: 340px;
  }

  .intro {
    margin: 0 auto;
    text-align: center;
  }

  .intro h2 {
    font-size: 68px;
  }

  .cta-row {
    justify-content: center;
  }

  .resume-card {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .project-image {
    min-height: 220px;
  }

  #contact.section,
  .contact-section {
    flex: 1 1 auto;
    min-height: 0;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 22px 24px;
  }

  .footer-right {
    gap: 24px;
    flex-wrap: wrap;
  }
}

/* ── Responsive : mobile (560px 이하) ── */
@media (max-width: 560px) {
  .header {
    padding: 16px 18px;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-role {
    font-size: 11px;
  }

  .nav {
    gap: 14px;
    font-size: 12px;
  }

  .home-left-bg {
    height: 100%;
  }

  .home-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    width: 100%;
    max-width: 100%;
    padding: 34px 16px 52px;
    overflow: hidden;
  }

  .profile-card {
    width: calc(100vw - 32px);
    max-width: 340px;
    min-height: auto;
    padding: 34px 20px 0;
    align-self: center;
    flex: 0 0 auto;
    margin-left: auto;
    margin-right: auto;
  }

  .profile-photo {
    width: 132px;
    height: 132px;
  }

  .profile-initials {
    font-size: 40px;
  }

  .profile-card h1 {
    font-size: 28px;
    margin: 24px 0 10px;
  }

  .profile-card p {
    font-size: 11px;
    width: 100%;
    letter-spacing: 0.14em;
    line-height: 1.6;
    margin: 16px 0 0;
    overflow-wrap: anywhere;
  }

  .profile-social {
    width: calc(100% + 40px);
    margin-left: -20px;
    margin-right: -20px;
    margin-top: 42px;
    height: 52px;
    gap: 20px;
  }

  .intro {
    width: calc(100vw - 32px);
    max-width: 340px;
    margin: 0 auto;
    text-align: center;
    overflow: hidden;
  }

  .intro h2 {
    font-size: 52px;
    color: #ffffff;
    text-align: center;
  }

  .intro h3 {
    font-size: 18px;
    margin: 0 0 18px;
    color: #eafff5;
    text-align: center;
    word-break: keep-all;
    overflow-wrap: anywhere;
  }

  .intro p {
    width: 100%;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.75;
    text-align: center;
    word-break: keep-all;
    overflow-wrap: anywhere;
  }

  .cta-row {
    width: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 0 0 32px;
  }

  .btn {
    width: 200px;
  }
  
  .home .skill-item {
    color: #ffffff;
  }
  
  .home .skill-item span:not(.square) {
    color: #ffffff;
  }

  /* Resume */
  .section {
    padding: 64px 18px;
  }

  .section-title {
    margin-bottom: 40px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    width: 100%;
  }

  .resume-card {
    width: 100%;
    padding: 36px 24px;
    gap: 12px;
  }

  .resume-left {
    gap: 4px;
  }

  .skill-card {
    width: 100%;
    padding: 36px 24px;
  }

  .skill-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  
  /* Projects */
  .section-desc {
    margin: -20px auto 40px;
    font-size: 13px;
  }

  .project-card {
    width: 100%;
  }

  .project-text {
    padding: 40px 24px;
  }

  .project-image {
    margin: 0;
    min-height: 280px;
    padding: 36px 0 44px;
  }

  /* Contact */
  #contact.section,
  .contact-section {
    flex: 1 1 auto;
    min-height: 0;
  }

  .contact-card {
    width: 100%;
    padding: 40px 24px;
    min-height: unset;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  label {
    margin-bottom: 20px;
  }

  /* Footer */
  .footer {
    padding: 20px 18px;
  }

  .footer-right {
    gap: 18px;
  }
}