/* ============================================================
   M2Live Cloud — common.css
   모든 페이지 공통 CSS. 각 HTML <head>에서 로드:
   <link rel="stylesheet" href="common.css">
   ============================================================ */

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

:root {
  --w: #fff;
  --g0: #fafbfd; --g1: #f4f6fa; --g2: #e8ecf4; --g3: #d4dae8; --g4: #a8b2c6;
  --t0: #0d1117; --t1: #2d3748; --t2: #5a6578; --t3: #8b96a8;
  --blue: #2563eb; --blue-d: #1d4ed8; --blue-l: #eff4ff; --blue-m: #dbeafe;
  --green: #059669; --green-l: #ecfdf5; --green-m: #d1fae5;
  --purple: #7c3aed; --purple-d: #6d28d9; --purple-l: #f5f3ff; --purple-m: #ede9fe;
  --orange: #d97706; --orange-l: #fffbeb; --orange-m: #fde68a;
  --cyan: #0891b2; --cyan-l: #ecfeff; --cyan-m: #a5f3fc;
  --red: #dc2626; --red-l: #fef2f2;
  --r: 8px; --r-lg: 14px; --r-xl: 20px;
  --sh: 0 1px 3px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.05);
  --sh-lg: 0 8px 32px rgba(0,0,0,.10), 0 2px 8px rgba(0,0,0,.06);
  --sh-xl: 0 20px 64px rgba(0,0,0,.12), 0 4px 16px rgba(0,0,0,.07);
  --font: 'Inter', 'Noto Sans KR', sans-serif;
  --nav-h: 60px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--w);
  color: var(--t0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5, h6 { line-height: 1.2; }

.stag {
  display: inline-block;
  font-size: 10.5px; font-weight: 600;
  letter-spacing: 1.5px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 100px;
  margin-bottom: 12px;
}

.sh {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 800; letter-spacing: -1.3px; line-height: 1.1;
  color: var(--t0);
}
.sh em { font-style: normal; color: var(--blue); }

.sdesc {
  font-size: 15px; color: var(--t2);
  line-height: 1.9; margin-top: 12px;
  max-width: 560px; margin-left: auto; margin-right: auto;
}

/* ── LAYOUT ── */
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.wrap-md { max-width: 1024px; margin: 0 auto; padding: 0 32px; }
.wrap-sm { max-width: 800px;  margin: 0 auto; padding: 0 32px; }

.page-top { padding-top: var(--nav-h); }

.sec { padding: 104px 32px; }
.sec-sm { padding: 72px 32px; }
.sec-head { text-align: center; margin-bottom: 56px; }

.divider-top {
  position: relative;
}
.divider-top::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--g3), transparent);
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 20px; border-radius: var(--r);
  font-size: 13.5px; font-weight: 600;
  font-family: var(--font); cursor: pointer;
  text-decoration: none; border: 1.5px solid transparent;
  line-height: 1.4; white-space: nowrap;
  transition: all .15s ease;
}
.btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.btn-prim  { background: var(--blue);  color: #fff; box-shadow: 0 2px 8px rgba(37,99,235,.25); }
.btn-prim:hover  { background: var(--blue-d); transform: translateY(-1px); }

.btn-ghost { background: transparent; color: var(--t1); border-color: var(--g3); }
.btn-ghost:hover { background: var(--g1); color: var(--t0); }

.btn-green  { background: var(--green);  color: #fff; box-shadow: 0 2px 8px rgba(5,150,105,.25); }
.btn-green:hover  { background: #047857; transform: translateY(-1px); }

.btn-purple { background: var(--purple); color: #fff; box-shadow: 0 2px 8px rgba(124,58,237,.25); }
.btn-purple:hover { background: var(--purple-d); transform: translateY(-1px); }

.btn-white  { background: #fff; color: var(--blue); font-weight: 700; }
.btn-white:hover  { background: #f0f4ff; transform: translateY(-1px); }

.btn-ow { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.28); }
.btn-ow:hover { background: rgba(255,255,255,.22); }

.btn-outline-blue { background: transparent; color: var(--blue); border-color: var(--blue-m); }
.btn-outline-blue:hover { background: var(--blue-l); }

.btn-lg  { padding: 14px 32px; font-size: 15.5px; border-radius: 11px; }
.btn-sm  { padding: 6px 14px;  font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }

/* ── CARDS ── */
.card {
  background: var(--w);
  border: 1px solid var(--g2);
  border-radius: 20px;
  transition: transform .18s, box-shadow .18s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--sh-lg); }

/* ── BADGE ── */
.badge {
  display: inline-block;
  font-size: 10px; font-weight: 700;
  letter-spacing: .6px; text-transform: uppercase;
  padding: 3px 10px; border-radius: 100px;
}
.badge-blue   { background: var(--blue-l);   color: var(--blue);   border: 1px solid var(--blue-m); }
.badge-green  { background: var(--green-l);  color: var(--green);  border: 1px solid var(--green-m); }
.badge-purple { background: var(--purple-l); color: var(--purple); border: 1px solid var(--purple-m); }
.badge-orange { background: var(--orange-l); color: var(--orange); border: 1px solid var(--orange-m); }
.badge-gray   { background: var(--g1); color: var(--t2); border: 1px solid var(--g2); }

/* ── CODE PANEL ── */
.code-panel { background: var(--t0); border-radius: 18px; overflow: hidden; box-shadow: var(--sh-lg); }
.code-panel-bar {
  background: rgba(255,255,255,.05);
  padding: 11px 18px;
  display: flex; align-items: center; gap: 6px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.code-dot { width: 9px; height: 9px; border-radius: 50%; }
.code-label { font-size: 10.5px; color: rgba(255,255,255,.25); margin-left: 5px; }
.code-body {
  padding: 22px 22px;
  font-family: monospace; font-size: 12.5px;
  line-height: 2.1; color: rgba(219,234,254,.55);
  overflow-x: auto;
}
.code-foot {
  background: rgba(255,255,255,.03);
  padding: 10px 18px;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.06);
  font-size: 10.5px;
}
.code-foot-label { color: rgba(255,255,255,.25); }
.code-foot-val   { font-size: 13px; font-weight: 700; color: #6ee7b7; }

/* code colors */
.c-k  { color: #f9a8d4; }
.c-s  { color: #86efac; }
.c-n  { color: #93c5fd; }
.c-y  { color: #fde68a; }
.c-m  { color: rgba(255,255,255,.22); }

/* ── REVEAL ANIMATION ── */
.rv {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .65s ease, transform .65s ease;
}
.rv.in { opacity: 1; transform: none; }
.d1 { transition-delay: .09s; }
.d2 { transition-delay: .18s; }
.d3 { transition-delay: .27s; }
.d4 { transition-delay: .36s; }

/* ── GRID HELPERS ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ── HERO COMMON ── */
.hero-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 104px 32px 112px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 600; color: var(--blue);
  background: var(--blue-l); border: 1px solid rgba(37,99,235,.18);
  padding: 5px 15px; border-radius: 100px; margin-bottom: 20px;
}
.hero-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue); animation: blink 2s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }

.hero-h1 {
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 900; letter-spacing: -2.2px; line-height: 1.05;
  color: var(--t0); margin-bottom: 18px;
}
.hero-h1 em { font-style: normal; }
.hero-h1 .grad {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub { font-size: 16px; color: var(--t2); line-height: 1.9; margin-bottom: 30px; max-width: 460px; }
.hero-acts { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }

.kpi-row { display: flex; gap: 28px; padding-top: 28px; border-top: 1px solid var(--g2); flex-wrap: wrap; }
.kpi-item .v { font-size: 24px; font-weight: 800; color: var(--t0); letter-spacing: -.7px; }
.kpi-item .v em { font-size: 12px; font-weight: 600; color: var(--green); font-style: normal; margin-left: 3px; }
.kpi-item .l { font-size: 11px; color: var(--t3); margin-top: 2px; }

/* ── FEATURE CARD ── */
.feat-card {
  background: var(--w); border: 1px solid var(--g2);
  border-radius: 20px; overflow: hidden;
  transition: background .18s;
}
.feat-card:hover { background: var(--g0); }
.feat-vis {
  height: 168px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.feat-vis canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.feat-body { padding: 26px 24px 32px; }
.feat-tag { font-size: 9.5px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--t3); margin-bottom: 8px; }
.feat-body h3 { font-size: 15.5px; font-weight: 700; color: var(--t0); margin-bottom: 10px; letter-spacing: -.2px; }
.feat-body p  { font-size: 13px; color: var(--t2); line-height: 1.78; }
.feat-links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.feat-pill {
  display: inline-flex; align-items: center;
  font-size: 11px; font-weight: 600;
  padding: 5px 12px; border-radius: 100px;
  border: 1px solid; text-decoration: none; gap: 4px;
  transition: opacity .15s;
}
.feat-pill:hover { opacity: .75; }

/* ── CTA BOX ── */
.cta-box {
  border-radius: 24px;
  padding: 68px 76px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 44px; align-items: center;
  position: relative; overflow: hidden;
  box-shadow: 0 20px 64px rgba(37,99,235,.28);
}
.cta-box::before {
  content: '';
  position: absolute; top: -80px; right: -60px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,.07);
}
.cta-box h2 { font-size: 30px; font-weight: 800; letter-spacing: -.9px; color: #fff; margin-bottom: 10px; }
.cta-box p  { font-size: 14.5px; color: rgba(255,255,255,.72); line-height: 1.85; }
.cta-box p a { color: rgba(255,255,255,.92); font-weight: 600; text-decoration: none; }
.cta-acts { display: flex; flex-direction: column; gap: 10px; flex-shrink: 0; position: relative; z-index: 1; }
.cta-acts .btn { padding: 14px 28px; font-size: 14.5px; border-radius: 10px; }

/* ── FOOTER ── */
.site-footer { background: var(--t0); }
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 68px 32px 40px;
  display: grid; grid-template-columns: 220px 1fr; gap: 60px;
}
.footer-brand-logo {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 14px; text-decoration: none; cursor: pointer;
}
.footer-brand-mark {
  width: 26px; height: 26px; border-radius: 6px;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; font-weight: 900; color: #fff;
}
.footer-brand-name  { font-size: 14px; font-weight: 700; color: #fff; }
.footer-brand-tagline { font-size: 12.5px; color: rgba(255,255,255,.32); line-height: 1.8; }
.footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-col h4 {
  font-size: 11px; font-weight: 600;
  color: rgba(255,255,255,.32);
  letter-spacing: .6px; text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col a {
  display: block; font-size: 13px;
  color: rgba(255,255,255,.4);
  text-decoration: none; margin-bottom: 10px;
  cursor: pointer; transition: color .13s;
}
.footer-col a:hover { color: rgba(255,255,255,.78); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 18px 32px;
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.footer-bottom span { font-size: 12px; color: rgba(255,255,255,.28); }

/* ── LOGO BAR ── */
.logo-bar {
  padding: 22px 32px;
  background: var(--g0);
  border-top: 1px solid var(--g2);
  border-bottom: 1px solid var(--g2);
}
.logo-bar-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap; justify-content: center;
}
.logo-bar-label { font-size: 10.5px; color: var(--t3); margin-right: 12px; font-weight: 500; letter-spacing: .4px; text-transform: uppercase; }
.logo-pill {
  background: var(--w); border: 1px solid var(--g2);
  border-radius: 100px; padding: 5px 15px;
  font-size: 12px; font-weight: 500; color: var(--t2);
}

/* ── SPEC TABLE ── */
.spec-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.spec-table th {
  padding: 10px 14px; background: var(--g1);
  border: 1px solid var(--g2); font-weight: 600;
  text-align: left; color: var(--t0);
}
.spec-table td { padding: 10px 14px; border: 1px solid var(--g2); color: var(--t1); }
.spec-table tr:hover td { background: var(--g0); }

/* ── FAQ ── */
.faq-item {
  background: var(--w); border: 1px solid var(--g2);
  border-radius: 14px; margin-bottom: 10px; overflow: hidden;
}
.faq-btn {
  width: 100%; background: none; border: none;
  padding: 20px 24px;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer; font-family: var(--font); text-align: left;
}
.faq-btn span { font-size: 14.5px; font-weight: 600; color: var(--t0); }
.faq-icon {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--g1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 14px; color: var(--t2);
  transition: transform .2s, background .15s;
  line-height: 1;
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--blue-l); color: var(--blue); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  font-size: 13.5px; color: var(--t2); line-height: 1.85;
  padding: 0 24px;
}
.faq-item.open .faq-answer { max-height: 400px; padding: 0 24px 20px; }

/* ── TIMELINE ── */
.timeline { display: flex; flex-direction: column; position: relative; padding-left: 30px; }
.timeline::before {
  content: ''; position: absolute; left: 10px; top: 16px; bottom: 16px;
  width: 2px; background: linear-gradient(180deg, var(--green), var(--blue), var(--g3));
}
.tl-item { position: relative; padding: 0 0 36px 22px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute; left: -20px; top: 2px;
  width: 20px; height: 20px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; font-weight: 700; border: 2px solid var(--w);
}
.tl-dot-green  { background: var(--green);  color: #fff; box-shadow: 0 0 0 3px rgba(5,150,105,.15); }
.tl-dot-blue   { background: var(--blue);   color: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.tl-dot-gray   { background: var(--w); color: var(--t3); border-color: var(--g3); }
.tl-item h4    { font-size: 15px; font-weight: 700; color: var(--t0); margin-bottom: 5px; }
.tl-item p     { font-size: 13.5px; color: var(--t2); line-height: 1.78; }

/* ── BEFORE/AFTER CARDS ── */
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.ba-card { border-radius: 22px; padding: 36px 32px; }
.ba-card h3 { font-size: 18px; font-weight: 800; letter-spacing: -.4px; margin-bottom: 20px; }
.ba-list { display: flex; flex-direction: column; gap: 12px; }
.ba-item { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; line-height: 1.6; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero-2col { grid-template-columns: 1fr; gap: 44px; padding: 80px 24px 88px; }
  .grid-3    { grid-template-columns: 1fr 1fr; }
  .grid-4    { grid-template-columns: repeat(2, 1fr); }
  .cta-box   { grid-template-columns: 1fr; padding: 48px 36px; }
  .cta-acts  { align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-cols  { grid-template-columns: repeat(2, 1fr); }
  .ba-grid   { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .wrap, .wrap-md, .wrap-sm { padding: 0 20px; }
  .sec { padding: 72px 20px; }
  .sec-sm { padding: 48px 20px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero-2col { padding: 72px 20px 80px; }
  .cta-box { padding: 40px 24px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .kpi-row { gap: 20px; }
}
