/* ============================================
   programs.css — BARREUN. 더바른컴퍼니
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --black: #0A0A0A; --white: #FFFFFF;
  --gray-100: #EFEFED; --gray-300: #C8C8C4;
  --gray-500: #888884; --gray-700: #444440;
  --serif: 'Noto Serif KR', Georgia, serif;
  --sans: 'Noto Sans KR', sans-serif;
  --max-w: 860px; --pad: clamp(1.5rem, 5vw, 4rem);
}
html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--white); color: var(--black); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
html { overflow-x: hidden; }

/* NAV */
nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--gray-100); padding: 0 var(--pad); display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav-logo { font-family: var(--serif); font-size: 17px; font-weight: 600; letter-spacing: 0.1em; color: var(--black); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 2.5rem; }
.nav-link { font-size: 13px; color: var(--gray-700); text-decoration: none; letter-spacing: 0.02em; transition: color 0.2s; }
.nav-link:hover, .nav-link.active { color: var(--black); font-weight: 500; }
.nav-cta { font-size: 13px; font-weight: 500; color: var(--white); background: var(--black); padding: 9px 20px; letter-spacing: 0.04em; cursor: pointer; border: none; font-family: var(--sans); transition: opacity 0.2s; }
.nav-cta:hover { opacity: 0.75; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.nav-hamburger span { display: block; width: 22px; height: 1.5px; background: var(--black); }
.nav-mobile-menu { display: none; position: fixed; top: 60px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--gray-100); padding: 1.5rem var(--pad); z-index: 99; flex-direction: column; gap: 0; }
.nav-mobile-menu.open { display: flex; }
.nav-mobile-link { font-size: 14px; color: var(--gray-700); text-decoration: none; padding: 1rem 0; border-bottom: 1px solid var(--gray-100); }
.nav-mobile-link:last-child { border-bottom: none; }

/* LAYOUT */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad); overflow: hidden; }
.label { font-size: 11px; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 1.5rem; }

/* HERO */
.hero { padding: 7rem 0 5rem; border-bottom: 1px solid var(--gray-100); }
.hero h1 { font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.2rem); font-weight: 300; line-height: 1.25; letter-spacing: -0.01em; margin-bottom: 1rem; }
.hero-sub { font-size: 14px; color: var(--gray-500); line-height: 1.85; max-width: 600px; }

/* PROGRAM SECTION */
.prog-section { padding: 6rem 0; border-bottom: 1px solid var(--gray-100); border-top: 1px solid var(--gray-100); }
.prog-section:last-of-type { border-bottom: none; }
.prog-header { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; margin-bottom: 4rem; }
.prog-header.dark { background: var(--black); color: var(--white); margin: -6rem calc(-1 * var(--pad)) 4rem; padding: 4rem var(--pad); }
.prog-num { font-size: 11px; font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray-300); margin-bottom: 1rem; }
.prog-header.dark .prog-num { color: var(--gray-700); }
.prog-name { font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.prog-tier { font-size: 12px; color: var(--gray-500); letter-spacing: 0.06em; text-transform: uppercase; }
.prog-header.dark .prog-tier { color: var(--gray-700); }
.prog-desc { font-size: 14px; color: var(--gray-500); line-height: 1.85; max-width: 100%; word-break: keep-all; }
.prog-header.dark .prog-desc { color: var(--gray-300); }

/* META GRID */
.meta-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: var(--gray-100); margin-bottom: 3rem; }
.meta-row.dark { background: var(--gray-700); }
.meta-cell { background: var(--white); padding: 1.5rem; border-right: 1px solid var(--gray-100); }
.meta-cell.dark-cell { background: var(--black); border-right-color: var(--gray-700); }
.meta-cell:last-child { border-right: none; }
.meta-label { font-size: 11px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 6px; }
.meta-cell.dark-cell .meta-label { color: var(--gray-700); }
.meta-value { font-size: 14px; font-weight: 500; color: var(--black); }
.meta-cell.dark-cell .meta-value { color: var(--white); }

/* STEPS */
.prog-body { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.steps-title { font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 1.5rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--gray-100); }
.prog-step { display: flex; gap: 1.25rem; padding: 1rem 0; border-bottom: 1px solid var(--gray-100); align-items: flex-start; }
.step-num { font-family: var(--serif); font-size: 12px; color: var(--gray-300); flex-shrink: 0; padding-top: 2px; width: 20px; }
.step-text { font-size: 13px; color: var(--gray-700); line-height: 1.65; }

/* FEATURES */
.features-title { font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 1.5rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--gray-100); }
.feature-item { display: flex; gap: 0.875rem; padding: 0.875rem 0; border-bottom: 1px solid var(--gray-100); font-size: 13px; color: var(--gray-700); line-height: 1.5; }
.feature-item::before { content: '—'; color: var(--gray-300); flex-shrink: 0; font-size: 11px; margin-top: 1px; }

/* CTA ROW */
.prog-cta-row { margin-top: 3rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding-top: 2rem; border-top: 1px solid var(--gray-100); }
.prog-price { font-size: 11px; color: var(--gray-500); letter-spacing: 0.06em; text-transform: uppercase; }
.btn-enquire { font-size: 13px; font-weight: 500; color: var(--white); background: var(--black); padding: 12px 28px; border: none; cursor: pointer; font-family: var(--sans); letter-spacing: 0.04em; transition: opacity 0.2s; text-decoration: none; display: inline-block; }
.btn-enquire:hover { opacity: 0.75; }
.btn-enquire-outline { font-size: 13px; font-weight: 500; color: var(--black); background: transparent; padding: 12px 28px; border: 1px solid var(--gray-300); cursor: pointer; font-family: var(--sans); letter-spacing: 0.04em; transition: border-color 0.2s; }
.btn-enquire-outline:hover { border-color: var(--black); }

/* CURRICULUM (Implementation) */
.curr-section { margin-top: 0; }
.curr-note { font-size: 12px; color: var(--gray-500); line-height: 1.7; margin-bottom: 1.25rem; }
.curr-tabs { display: flex; border-bottom: 1px solid var(--gray-100); margin-bottom: 1.5rem; }
.curr-tab { font-size: 12px; font-weight: 500; padding: 0.75rem 1.25rem; background: transparent; border: none; color: var(--gray-500); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; font-family: var(--sans); transition: color 0.2s; }
.curr-tab.active { color: var(--black); border-bottom-color: var(--black); }
.curr-tab:hover { color: var(--black); }
.curr-content { display: none; }
.curr-content.active { display: block; }
.curr-section-label { font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-700); margin-bottom: 0.75rem; }
.curr-item { display: flex; gap: 0.875rem; padding: 0.625rem 0; border-top: 1px solid var(--gray-700); }
.curr-num { font-family: var(--serif); font-size: 12px; color: var(--gray-700); width: 20px; flex-shrink: 0; }
.curr-title { font-size: 12px; color: var(--gray-300); line-height: 1.5; }
.doc-item { display: flex; gap: 0.75rem; padding: 0.625rem 0; border-top: 1px solid var(--gray-700); }
.doc-icon { font-size: 11px; color: var(--gray-700); letter-spacing: 0.06em; flex-shrink: 0; }
.doc-title { font-size: 12px; color: var(--gray-300); }

/* FAQ */
.faq-section { padding: 6rem 0; border-bottom: 1px solid var(--gray-100); }
.faq-item { border-top: 1px solid var(--gray-100); }
.faq-item:last-child { border-bottom: 1px solid var(--gray-100); }
.faq-q { font-size: 14px; font-weight: 500; padding: 1.5rem 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq-toggle { font-size: 20px; font-weight: 300; color: var(--gray-500); flex-shrink: 0; transition: transform 0.2s; }
.faq-a { font-size: 13px; color: var(--gray-500); line-height: 1.85; display: none; padding-bottom: 1.5rem; max-width: 680px; }
.faq-item.open .faq-a { display: block; }
.faq-item.open .faq-toggle { transform: rotate(45deg); }

/* CTA FOOTER */
.cta-section { background: var(--black); padding: 7rem var(--pad); text-align: center; }
.cta-section h2 { font-family: var(--serif); font-size: clamp(1.2rem, 2.2vw, 1.65rem); font-weight: 300; color: var(--white); line-height: 1.45; letter-spacing: -0.01em; margin-bottom: 2.5rem; max-width: 520px; margin-left: auto; margin-right: auto; }
.btn-cta { display: inline-block; font-size: 13px; font-weight: 500; letter-spacing: 0.06em; color: var(--black); background: var(--white); padding: 14px 36px; cursor: pointer; border: none; font-family: var(--sans); transition: opacity 0.2s; }
.btn-cta:hover { opacity: 0.85; }

/* FOOTER */

@media (max-width: 640px) {
  
  
}


/* MODAL */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); z-index: 1000; align-items: center; justify-content: center; }
.modal-box { background: var(--white); padding: 3rem; max-width: 460px; width: 90%; position: relative; max-height: 90vh; overflow-y: auto; }
.modal-close { position: absolute; top: 1.25rem; right: 1.25rem; background: none; border: none; font-size: 18px; color: var(--gray-500); cursor: pointer; }
.modal-label { font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 0.75rem; }
.modal-title { font-family: var(--serif); font-size: 1.2rem; font-weight: 400; margin-bottom: 2rem; line-height: 1.4; }
.program-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 1.75rem; }
.program-opt { border: 1px solid var(--gray-100); padding: 0.875rem 0.5rem; text-align: center; font-size: 11px; font-weight: 500; cursor: pointer; transition: all 0.15s; line-height: 1.5; }
.program-opt:hover { border-color: var(--black); }
.program-opt.selected { background: var(--black); color: var(--white); border-color: var(--black); }
.form-fields { display: flex; flex-direction: column; gap: 14px; margin-bottom: 1.75rem; }
.field-label { font-size: 11px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-500); display: block; margin-bottom: 5px; }
.field-input { width: 100%; padding: 11px 0; border: none; border-bottom: 1px solid var(--gray-100); font-size: 14px; font-family: var(--sans); outline: none; background: transparent; transition: border-color 0.2s; }
.field-input:focus { border-bottom-color: var(--black); }
.field-textarea { width: 100%; padding: 11px 0; border: none; border-bottom: 1px solid var(--gray-100); font-size: 14px; font-family: var(--sans); outline: none; background: transparent; resize: none; transition: border-color 0.2s; }
.field-textarea:focus { border-bottom-color: var(--black); }
.btn-submit { width: 100%; background: var(--black); color: var(--white); border: none; padding: 14px; font-size: 13px; font-weight: 500; letter-spacing: 0.06em; cursor: pointer; font-family: var(--sans); }
.modal-note { font-size: 11px; color: var(--gray-500); text-align: center; margin-top: 0.875rem; }

/* MOBILE */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.nav-hamburger span { display: block; width: 22px; height: 1.5px; background: var(--black); }
@media (max-width: 768px) {
  .nav-links .nav-link { display: none; }
  .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .prog-header { grid-template-columns: 1fr; gap: 1.5rem; }
  .prog-body { grid-template-columns: 1fr; gap: 2.5rem; }
  .meta-row { grid-template-columns: 1fr 1fr; }
  .meta-cell { border-right: none; border-bottom: 1px solid var(--gray-100); }
  .meta-cell.dark-cell { border-right: none; border-bottom-color: var(--gray-700); }
}
@media (max-width: 480px) {
  :root { --pad: 1.25rem; }
  .prog-section { padding: 4rem 0; }
  .meta-row { grid-template-columns: 1fr 1fr; }
  .prog-name { font-size: 1.6rem; }
  .program-options { grid-template-columns: 1fr; }
}
@media (min-width: 769px) {
  .nav-hamburger { display: none !important; }
  .nav-mobile-menu { display: none !important; }
}
footer {
  padding: 6rem var(--pad) 5rem;
  border-top: 1px solid var(--gray-100);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 3rem;
}
.footer-logo { font-family: var(--serif); font-size: 13px; font-weight: 600; letter-spacing: 0.1em; color: var(--black); margin-bottom: 0.5rem; }
.footer-copy { font-size: 11px; color: var(--gray-500); letter-spacing: 0.02em; line-height: 1.8; }
.footer-right { display: flex; flex-direction: column; align-items: flex-end; gap: 1rem; }
.footer-email { font-size: 11px; color: var(--gray-500); text-decoration: none; letter-spacing: 0.04em; transition: color 0.2s; }
.footer-email:hover { color: var(--black); }
.footer-socials { display: flex; align-items: center; gap: 1.5rem; }
.footer-link { font-size: 11px; color: var(--gray-500); text-decoration: none; display: flex; align-items: center; gap: 4px; letter-spacing: 0.04em; transition: color 0.2s; }
.footer-link:hover { color: var(--black); }
.footer-link svg { opacity: 0.6; }
@media (max-width: 640px) {
  footer { grid-template-columns: 1fr; gap: 2rem; padding: 4rem var(--pad) 3rem; }
  .footer-right { align-items: flex-start; }
}