/* 제이제이테크랩 — 방송 남색 · 칠판 초록 · 자막 노랑 */
:root {
  --navy: #14213d;
  --navy-2: #1e2f57;
  --chalk: #2e6b4f;
  --chalk-2: #24553f;
  --caption: #ffd23f;
  --paper: #f4f6fa;
  --line: #d5dae3;
  --ink: #1c2333;
  --ink-soft: #4a5468;
  --white: #ffffff;

  --display: "Black Han Sans", "IBM Plex Sans KR", sans-serif;
  --body: "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;

  /* 1.25 비율 타입 스케일 */
  --fs-sm: 0.875rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.25rem;
  --fs-lg: 1.75rem;
  --fs-xl: clamp(2rem, 4vw, 2.75rem);
  --fs-hero: clamp(2.5rem, 6.4vw, 4.5rem);

  --wrap: 1160px;
  --gutter: 16px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--fs-base);
  line-height: 1.7;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 400; }
p { margin: 0; }
img, video { display: block; max-width: 100%; }

a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--caption);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (min-width: 720px) { :root { --gutter: 32px; } }

.skip {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--caption);
  color: var(--navy);
  font-weight: 700;
}
.skip:focus { top: 12px; }

/* ---------- 버튼 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 2px solid transparent;
  border-radius: 6px;
  font: 700 var(--fs-base)/1 var(--body);
  text-decoration: none;
  cursor: pointer;
}
.btn-yellow { background: var(--caption); color: var(--navy); }
.btn-yellow:hover { background: #ffdd66; }
.btn-line { border-color: rgba(255, 255, 255, 0.5); color: var(--white); }
.btn-line:hover { border-color: var(--white); background: rgba(255, 255, 255, 0.08); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-2); }

/* ---------- 헤더 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy);
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.logo { display: flex; align-items: center; }
.logo img { width: auto; height: 44px; }
@media (max-width: 400px) { .logo img { height: 36px; } }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a {
  text-decoration: none;
  font-weight: 500;
  opacity: 0.85;
}
.site-nav a:hover { opacity: 1; }
.site-nav .nav-cta {
  opacity: 1;
  padding: 8px 16px;
  border-radius: 6px;
  background: var(--caption);
  color: var(--navy);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: transparent;
  color: var(--white);
  font: 500 var(--fs-sm) var(--body);
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 16px;
    background: var(--navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px 0; }
  .site-nav .nav-cta { margin-top: 8px; text-align: center; padding: 12px; }
}

/* ---------- 첫 화면 ---------- */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 56px 0 72px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  gap: 48px;
  align-items: center;
}
@media (min-width: 960px) {
  .hero { padding: 88px 0 104px; }
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; gap: 64px; }
}

.hero h1 {
  font-family: var(--display);
  font-size: var(--fs-hero);
  line-height: 1.12;
  letter-spacing: -0.01em;
}
.hero-lead {
  max-width: 34em;
  margin-top: 24px;
  font-size: var(--fs-md);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

/* 방송 모니터 */
.monitor { margin: 0; max-width: 520px; width: 100%; justify-self: center; }
.monitor-screen {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 10px solid #0a1328;
  border-radius: 14px;
  background: #0a1328 url("assets/ejay.jpg") center / cover;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.14), 0 30px 60px -30px rgba(0, 0, 0, 0.7);
  overflow: hidden;
}
.monitor-screen video { width: 100%; height: 100%; object-fit: cover; }

.onair {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px 4px 10px;
  border-radius: 4px;
  background: rgba(10, 19, 40, 0.72);
  font-size: var(--fs-sm);
  font-weight: 700;
}
.onair-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ff4d4d;
  animation: blink 1.6s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }
.onair[hidden] { display: none; }
@media (prefers-reduced-motion: reduce) { .onair-dot { animation: none; } }

/* 예능 자막처럼 화면 아래에 붙는 노란 자막 — 이 페이지의 단 하나의 강조점 */
.caption {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%) rotate(-1.5deg);
  width: max-content;
  max-width: calc(100% - 32px);
  min-height: 1.4em;
  padding: 8px 16px 6px;
  background: var(--caption);
  color: var(--navy);
  font: 400 clamp(1.125rem, 2.6vw, 1.5rem)/1.3 var(--display);
  text-align: center;
  box-shadow: 4px 4px 0 var(--navy);
}
.caption:empty { visibility: hidden; }

.monitor-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.75);
}
.monitor-foot strong { color: var(--white); }
.sound-btn {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: transparent;
  color: var(--white);
  font: 500 var(--fs-sm) var(--body);
  cursor: pointer;
}
.sound-btn:hover { border-color: var(--white); }
.sound-btn[aria-pressed="true"] { background: var(--white); color: var(--navy); }

/* ---------- 현장 사진 띠 ---------- */
.reel {
  background: var(--navy);
  color: var(--white);
  padding: 0 0 56px;
  overflow: hidden;
}
.reel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  margin-bottom: 20px;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.8);
}
.reel-head strong { color: var(--caption); }
.reel-actions { display: flex; align-items: center; gap: 16px; }
.reel-actions a { color: var(--white); text-underline-offset: 3px; }
.reel-toggle {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: transparent;
  color: var(--white);
  font: 500 var(--fs-sm) var(--body);
  cursor: pointer;
}
.reel-toggle:hover { border-color: var(--white); }

.reel-track {
  display: flex;
  gap: 14px;
  width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
  animation: reel 70s linear infinite;
}
.reel-track li { flex: none; }
.reel-track img {
  height: 220px;
  width: auto;
  border-radius: 8px;
  object-fit: cover;
}
@media (max-width: 600px) { .reel-track img { height: 150px; } }
@keyframes reel { to { transform: translateX(-50%); } }
.reel-track-wrap:hover .reel-track,
.reel-track-wrap:focus-within .reel-track,
.reel.is-paused .reel-track { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) {
  .reel-track { animation: none; }
  .reel-track-wrap { overflow-x: auto; }
  .reel-toggle { display: none; }
}

/* ---------- 섹션 공통 ---------- */
.studio, .career, .process, .contact { padding: 80px 0; }
@media (min-width: 960px) {
  .studio, .career, .process, .contact { padding: 112px 0; }
}

.section-head { max-width: 40em; margin-bottom: 48px; }
.section-head h2 {
  font-family: var(--display);
  font-size: var(--fs-xl);
  line-height: 1.2;
}
.section-head p { margin-top: 14px; color: var(--ink-soft); font-size: var(--fs-md); line-height: 1.6; }

/* ---------- AI 제작 ---------- */
.studio { background: var(--white); }
.studio .section-head h2 { color: var(--navy); }

.service {
  display: grid;
  gap: 16px;
  padding: 32px 0;
  border-top: 2px solid var(--navy);
}
.service:last-child { border-bottom: 1px solid var(--line); }
.service h3 {
  font-family: var(--display);
  font-size: var(--fs-lg);
  color: var(--navy);
  line-height: 1.25;
}
.service-body p { max-width: 38em; }
.service-meta { display: grid; gap: 8px; margin: 20px 0 0; font-size: var(--fs-sm); }
.service-meta div { display: grid; grid-template-columns: 5.5em 1fr; gap: 12px; }
.service-meta dt { color: var(--ink-soft); }
.service-meta dd { margin: 0; font-weight: 500; }
@media (min-width: 860px) {
  .service { grid-template-columns: 280px 1fr; gap: 48px; padding: 40px 0; }
}

/* ---------- 진로체험 (칠판 초록) ---------- */
.career { background: var(--chalk); color: var(--white); }
.career .section-head p { color: rgba(255, 255, 255, 0.82); }

.filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.chip {
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  background: transparent;
  color: var(--white);
  font: 500 var(--fs-sm) var(--body);
  cursor: pointer;
}
.chip:hover { border-color: var(--white); }
.chip[aria-pressed="true"] { background: var(--white); color: var(--chalk-2); border-color: var(--white); }

/* 시간표처럼 생긴 프로그램 표 */
.timetable {
  border: 2px solid rgba(255, 255, 255, 0.85);
  border-radius: 10px;
  overflow: hidden;
  background: var(--chalk-2);
}
.tt-row {
  display: grid;
  grid-template-columns: 1.7fr 2.3fr 0.8fr 0.8fr 1.1fr;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}
.tt-row > span { padding: 16px 18px; border-left: 1px solid rgba(255, 255, 255, 0.22); }
.tt-row > span:first-child { border-left: 0; }
.tt-head { border-top: 0; background: rgba(255, 255, 255, 0.1); font-weight: 700; font-size: var(--fs-sm); }
.tt-row[hidden] { display: none; }
.tt-row > .tt-name { display: flex; align-items: center; gap: 14px; font-weight: 700; }
.tt-thumb {
  flex: none;
  width: 64px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.85);
}
.tt-thumb-empty { background: rgba(255, 255, 255, 0.08); border-style: dashed; border-color: rgba(255, 255, 255, 0.3); }
.tag {
  display: block;
  margin-bottom: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--caption);
}

@media (max-width: 860px) {
  .tt-head { display: none; }
  .tt-row { grid-template-columns: 1fr 1fr; padding: 18px; gap: 10px 16px; }
  .tt-row:nth-child(2) { border-top: 0; }
  .tt-row > span { padding: 0; border: 0; }
  .tt-row .tt-name { grid-column: 1 / -1; font-size: var(--fs-md); }
  .tt-row > [data-label="체험 내용"] { grid-column: 1 / -1; }
  .tt-row > [data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.65);
  }
  .tt-row > [data-label="체험 내용"]::before { display: none; }
}

.career-notes {
  display: grid;
  gap: 20px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}
.career-notes strong { display: block; color: var(--caption); }
.career-notes li { color: rgba(255, 255, 255, 0.85); }
@media (min-width: 860px) { .career-notes { grid-template-columns: repeat(3, 1fr); gap: 40px; } }

/* ---------- 현장 기록 ---------- */
.record { padding: 80px 0; background: var(--paper); }
@media (min-width: 960px) { .record { padding: 112px 0; } }
.record-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0 32px;
  margin-bottom: 40px;
}
.record-head .section-head { margin-bottom: 0; }
.record-head .section-head h2 { color: var(--navy); }
.record-blog { margin-top: 16px; font-weight: 700; color: var(--chalk); text-underline-offset: 4px; }

.mosaic {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 160px;
  grid-auto-flow: dense;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 860px) {
  .mosaic { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 14px; }
}
.mosaic .m-wide { grid-column: span 2; }
.mosaic .m-tall { grid-row: span 2; }
.mosaic button {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: 10px;
  overflow: hidden;
  background: var(--navy);
  cursor: zoom-in;
}
.mosaic img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.mosaic button:hover img, .mosaic button:focus-visible img { transform: scale(1.04); }
.mosaic button span {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 4px 10px 3px;
  background: var(--caption);
  color: var(--navy);
  font: 400 var(--fs-sm)/1.3 var(--display);
  border-radius: 3px;
}
@media (prefers-reduced-motion: reduce) { .mosaic img { transition: none; } }

.lightbox {
  width: min(960px, calc(100% - 32px));
  max-height: calc(100vh - 32px);
  padding: 0;
  border: 0;
  border-radius: 12px;
  background: var(--navy);
  color: var(--white);
}
.lightbox::backdrop { background: rgba(10, 19, 40, 0.86); }
.lightbox img { width: 100%; max-height: calc(100vh - 160px); object-fit: contain; background: #0a1328; }
.lb-caption { padding: 14px 18px 0; font: 400 var(--fs-md)/1.3 var(--display); color: var(--caption); }
.lb-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 12px 18px 18px; font-size: var(--fs-sm); }
.lb-controls button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: transparent;
  color: var(--white);
  font: 500 var(--fs-sm) var(--body);
  cursor: pointer;
}
.lb-controls button:hover { border-color: var(--white); }
.lb-controls .lb-close { margin-left: auto; background: var(--caption); border-color: var(--caption); color: var(--navy); font-weight: 700; }

/* ---------- 진행 방법 ---------- */
.steps {
  display: grid;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li { counter-increment: step; padding-top: 20px; border-top: 2px solid var(--ink); }
.steps li::before {
  content: counter(step);
  display: block;
  margin-bottom: 8px;
  font: 400 var(--fs-lg)/1 var(--display);
  color: var(--chalk);
}
.steps h3 { font-weight: 700; font-size: var(--fs-md); }
.steps p { margin-top: 8px; color: var(--ink-soft); }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .steps { grid-template-columns: repeat(4, 1fr); } }

/* ---------- 문의 ---------- */
.contact { background: var(--white); border-top: 1px solid var(--line); }
.contact-grid { display: grid; gap: 48px; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 0.8fr 1.2fr; gap: 80px; } }

.contact-info h2 { font-family: var(--display); font-size: var(--fs-xl); color: var(--navy); }
.contact-info > p { margin-top: 14px; color: var(--ink-soft); }
.contact-list { display: grid; gap: 14px; margin: 32px 0 0; }
.contact-list div { display: grid; grid-template-columns: 4em 1fr; gap: 12px; }
.contact-list dt { color: var(--ink-soft); }
.contact-list dd { margin: 0; font-weight: 700; }
.contact-list a { text-decoration-thickness: 1px; text-underline-offset: 3px; }

.contact-form { display: grid; gap: 20px; }
.field { display: grid; gap: 6px; }
.field-row { display: grid; gap: 20px; }
@media (min-width: 600px) { .field-row { grid-template-columns: 1fr 1fr; } }
.field label, .field-kind legend { font-weight: 700; font-size: var(--fs-sm); }
.optional { font-weight: 400; color: var(--ink-soft); }

.field input, .field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #b9c0cd;
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font: 400 var(--fs-base)/1.5 var(--body);
}
.field textarea { resize: vertical; }
.field input[type="date"] { cursor: pointer; }
.field input[type="date"]::-webkit-calendar-picker-indicator { cursor: pointer; width: 20px; height: 20px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(20, 33, 61, 0.2); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #c0392b; }

.field-kind { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 0; padding: 0; border: 0; }
.field-kind legend { width: 100%; margin-bottom: 8px; padding: 0; }
.field-kind label { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.field-kind input { width: 18px; height: 18px; accent-color: var(--navy); }

.form-status { min-height: 1.5em; font-size: var(--fs-sm); font-weight: 500; }
.form-status.is-error { color: #c0392b; }
.form-status.is-ok { color: var(--chalk); }
.contact-form .btn { justify-self: start; }
.contact-form .btn:disabled { opacity: 0.6; cursor: wait; }
.botcheck { display: none; }

/* ---------- 푸터 ---------- */
.site-footer { background: var(--navy); color: rgba(255, 255, 255, 0.7); padding: 40px 0; font-size: var(--fs-sm); }
.footer-inner { display: grid; gap: 6px; }
.footer-name { color: var(--white); font-weight: 700; font-size: var(--fs-base); }
.footer-meta { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.footer-credit { margin-top: 8px; font-size: 0.75rem; color: rgba(255, 255, 255, 0.5); }