/* =========================
   싸다구홈피 — Deep Purple Premium
   ========================= */

:root {
  --font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;

  /* Light palette */
  --bg:        #F7F5FB;
  --bg-2:      #EFEAF8;
  --surface:   #FFFFFF;
  --surface-2: #F3EEFB;
  --fg:        #14101F;
  --fg-2:      #443A5C;
  --muted:     #6C6382;
  --border:    #E4DBF3;
  --border-2:  #D5C8EE;

  --primary:   #6D28D9;  /* deep purple */
  --primary-2: #4C1D95;
  --primary-3: #7C3AED;
  --accent:    #A78BFA;  /* violet glow */
  --on-primary:#FFFFFF;

  --ok:        #16A34A;
  --warn:      #B45309;
  --err:       #B91C1C;

  --shadow-1: 0 1px 2px rgba(20,16,31,.06), 0 4px 12px rgba(76,29,149,.06);
  --shadow-2: 0 8px 30px rgba(76,29,149,.10), 0 2px 6px rgba(20,16,31,.06);
  --shadow-3: 0 24px 60px rgba(76,29,149,.16);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius:    14px;
  --radius-lg: 22px;
  --radius-xl: 28px;

  --wrap: 1200px;

  --ease: cubic-bezier(.2,.7,.2,1);
  --dur:  220ms;
}

[data-theme="dark"] {
  --bg:        #0B0714;
  --bg-2:      #100A1D;
  --surface:   #150E24;
  --surface-2: #1C1330;
  --fg:        #F4F1FB;
  --fg-2:      #C7BEE0;
  --muted:     #8E82AE;
  --border:    #241A3A;
  --border-2:  #34264E;

  --primary:   #A78BFA;
  --primary-2: #8B5CF6;
  --primary-3: #C4B5FD;
  --accent:    #C4B5FD;
  --on-primary:#0B0714;

  --shadow-1: 0 1px 2px rgba(0,0,0,.4), 0 6px 18px rgba(124,58,237,.15);
  --shadow-2: 0 12px 34px rgba(124,58,237,.28), 0 2px 6px rgba(0,0,0,.5);
  --shadow-3: 0 30px 70px rgba(124,58,237,.35);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  font-feature-settings: "ss01", "ss02", "cv11";
  font-weight: 450;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; margin: 0; word-break: keep-all; overflow-wrap: anywhere; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--primary); color: var(--on-primary); }

/* Skip link */
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--primary); color: var(--on-primary); padding: 8px 12px; border-radius: 6px; z-index: 999;
}
.skip:focus { left: 12px; top: 12px; }

.wrap { width: min(100%, var(--wrap)); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 880px; }

.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .10em; text-transform: uppercase;
  color: var(--primary); font-weight: 600;
  padding: 6px 12px; border: 1px solid color-mix(in oklab, var(--primary) 40%, transparent);
  border-radius: 999px; background: color-mix(in oklab, var(--primary) 10%, transparent);
  margin-bottom: 20px;
}
.section-title {
  font-size: clamp(30px, 4.6vw, 54px);
  margin-bottom: 20px;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(120deg, #EFEAFF, #D2C4FF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
[data-theme="light"] .section-title em {
  background: linear-gradient(120deg, #6D28D9, #3B0764);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-sub {
  color: var(--fg-2); font-size: 17px; max-width: 620px; margin-bottom: 40px;
}
.mini { color: var(--muted); font-size: 13px; margin-top: 24px; }

.section { padding: clamp(72px, 10vw, 140px) 0; position: relative; }

/* ==================
   Header
   ================== */
.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header.is-scrolled {
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex; align-items: center; gap: 24px;
  height: 68px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: -0.02em;
}
.brand-mark { display: inline-flex; }
.brand-name { font-size: 17px; }

.nav {
  display: flex; align-items: center; gap: 28px;
  margin-left: auto;
}
.nav a {
  font-size: 14.5px; color: var(--fg); font-weight: 600;
  padding: 8px 0; position: relative;
  transition: color var(--dur) var(--ease);
}
[data-theme="dark"] .nav a { color: #E7DFF8; }
.nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 4px;
  height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: right var(--dur) var(--ease);
}
.nav a:hover, .nav a:focus-visible { color: var(--fg); }
.nav a:hover::after, .nav a:focus-visible::after { right: 0; }

.nav a.nav-login {
  border: 1.5px solid var(--primary); border-radius: 999px;
  padding: 7px 16px; color: var(--primary); font-weight: 700;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav a.nav-login::after { display: none; }
.nav a.nav-login:hover, .nav a.nav-login:focus-visible {
  background: var(--primary); color: #fff;
}
[data-theme="dark"] .nav a.nav-login { color: #E7DFF8; border-color: var(--primary); }
[data-theme="dark"] .nav a.nav-login:hover { background: var(--primary); color: #fff; }

.header-cta { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 12px;
  border: 1px solid var(--border-2);
  background: color-mix(in oklab, var(--primary) 10%, transparent);
  color: var(--primary);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}
[data-theme="dark"] .theme-toggle { color: var(--primary-3); background: color-mix(in oklab, var(--primary-3) 14%, transparent); border-color: color-mix(in oklab, var(--primary-3) 40%, transparent); }
.theme-toggle:hover { color: var(--on-primary); background: var(--primary); border-color: var(--primary); transform: translateY(-1px); }
[data-theme="dark"] .theme-toggle:hover { color: #0B0714; background: var(--primary-3); border-color: var(--primary-3); }
.theme-toggle .i-sun, .theme-toggle .i-moon { display: none; }
[data-theme="light"] .theme-toggle .i-moon { display: block; }
[data-theme="dark"]  .theme-toggle .i-sun  { display: block; }

.menu-btn {
  display: none;
  width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--fg);
  align-items: center; justify-content: center;
  padding: 0;
}
.menu-btn span {
  display: block; width: 20px; height: 2px; background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.menu-btn span + span { margin-top: 5px; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==================
   Buttons
   ================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; letter-spacing: -0.01em;
  padding: 12px 20px; border-radius: 12px;
  cursor: pointer; text-align: center;
  border: 1px solid transparent;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-sm { padding: 9px 14px; font-size: 14px; border-radius: 10px; }
.btn-lg { padding: 16px 26px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: var(--on-primary);
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255,255,255,.15);
}
[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #A78BFA, #7C3AED);
  color: #0B0714;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255,255,255,.2);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent; color: var(--fg);
  border-color: var(--border-2);
}
.btn-ghost:hover {
  background: color-mix(in oklab, var(--primary) 10%, transparent);
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* ==================
   Hero
   ================== */
.hero {
  position: relative;
  min-height: min(100svh, 860px);
  padding: 100px 0 120px;
  display: flex; align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero-media {
  position: absolute; inset: 0; z-index: -2; overflow: hidden;
}
.hero-video {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.1) brightness(.55);
  opacity: .5;
}
[data-theme="light"] .hero-video { opacity: .22; filter: saturate(1.1) brightness(.95); }

.hero-veil {
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 700px at 20% 0%, color-mix(in oklab, var(--primary) 42%, transparent), transparent 60%),
    radial-gradient(1000px 700px at 100% 100%, color-mix(in oklab, var(--accent) 32%, transparent), transparent 55%),
    linear-gradient(180deg, color-mix(in oklab, var(--bg) 60%, transparent) 0%, var(--bg) 100%);
  z-index: -1;
}
[data-theme="light"] .hero-veil {
  background:
    radial-gradient(1200px 700px at 20% 0%, color-mix(in oklab, var(--primary) 22%, transparent), transparent 60%),
    radial-gradient(1000px 700px at 100% 100%, color-mix(in oklab, var(--accent) 22%, transparent), transparent 55%),
    linear-gradient(180deg, color-mix(in oklab, #ffffff 55%, transparent) 0%, var(--bg) 100%);
}

.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(80px);
  opacity: .55; z-index: -1; pointer-events: none;
  animation: floaty 14s var(--ease) infinite;
}
.hero-orb-1 { width: 460px; height: 460px; left: -120px; top: 12%; background: #7C3AED; }
.hero-orb-2 { width: 520px; height: 520px; right: -160px; bottom: -10%; background: #A78BFA; animation-delay: -6s; }
@keyframes floaty {
  0%, 100% { transform: translate3d(0,0,0) scale(1); }
  50%      { transform: translate3d(20px,-30px,0) scale(1.06); }
}

.hero-inner { position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 14px; border-radius: 999px;
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  border: 1px solid var(--border);
  font-size: 13px; color: var(--fg-2); font-weight: 500;
  backdrop-filter: blur(8px);
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 25%, transparent);
  animation: pulse 2s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 25%, transparent); }
  50%      { transform: scale(1.15); box-shadow: 0 0 0 8px color-mix(in oklab, var(--accent) 0%, transparent); }
}

.hero-title {
  font-size: clamp(40px, 7.2vw, 96px);
  line-height: 1.02; letter-spacing: -0.035em;
  margin: 22px 0 24px; max-width: 12ch;
  text-shadow: 0 2px 24px rgba(11,7,20,.35);
}
[data-theme="light"] .hero-title { text-shadow: 0 1px 2px rgba(255,255,255,.6); }
.hero-title em {
  font-style: normal;
  background: linear-gradient(120deg, #F3EEFF, #DCD0FF 55%, #CDBEFF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  position: relative;
}
[data-theme="light"] .hero-title em {
  background: linear-gradient(120deg, #6D28D9, #3B0764);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-sub {
  font-size: clamp(16px, 1.8vw, 20px);
  color: var(--fg); max-width: 62ch;
  margin-bottom: 36px;
  text-shadow: 0 1px 12px rgba(11,7,20,.35);
}
[data-theme="dark"] .hero-sub { color: #EAE2FA; }
[data-theme="light"] .hero-sub { color: var(--fg); text-shadow: none; }
.hero-sub .hl {
  color: var(--fg);
  background: linear-gradient(180deg, transparent 65%, color-mix(in oklab, var(--accent) 40%, transparent) 65%);
  padding: 0 2px;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 48px; }

.hero-badges {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px; max-width: 700px;
}
.hero-badges li {
  padding: 18px 20px;
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  display: flex; flex-direction: column; gap: 4px;
}
.hero-badges b {
  font-size: 22px; font-weight: 700; letter-spacing: -0.02em;
  background: linear-gradient(120deg, #EFEAFF, #D2C4FF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
[data-theme="light"] .hero-badges b {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-badges span { font-size: 13px; color: var(--fg-2); }

.scroll-hint {
  position: absolute; left: 50%; bottom: 24px;
  transform: translateX(-50%);
  width: 26px; height: 42px; border: 1.5px solid var(--border-2);
  border-radius: 20px; display: flex; justify-content: center; padding-top: 8px;
}
.scroll-hint span {
  width: 3px; height: 8px; border-radius: 2px;
  background: var(--fg-2);
  animation: scrollDot 1.8s var(--ease) infinite;
}
@keyframes scrollDot {
  0%   { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

.br-lg { display: none; }
@media (min-width: 900px) { .br-lg { display: inline; } }

/* ==================
   Problem
   ================== */
.problem { background: var(--bg-2); }
.problem-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px;
  margin-top: 40px;
}
.prob-card {
  padding: 28px 24px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 12px;
  min-height: 220px;
  position: relative; overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.prob-card:not(.accent)::after {
  content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, color-mix(in oklab, var(--muted) 40%, transparent), transparent);
  opacity: .6;
}
.prob-card:not(.accent):hover { border-color: var(--border-2); }
.prob-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  background: linear-gradient(180deg, transparent, color-mix(in oklab, var(--primary) 8%, transparent));
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.prob-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.prob-card:hover::before { opacity: 1; }
.prob-price {
  font-size: 22px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--fg);
  padding-bottom: 12px; border-bottom: 1px dashed var(--border);
  text-decoration: line-through;
  text-decoration-color: color-mix(in oklab, var(--muted) 60%, transparent);
  text-decoration-thickness: 2px;
}
.prob-card p { color: var(--fg-2); font-size: 15.5px; line-height: 1.6; }
.prob-card.accent {
  background: linear-gradient(160deg, var(--primary), var(--primary-2));
  color: #fff; border-color: transparent;
  box-shadow: var(--shadow-3);
}
@media (min-width: 721px) {
  .prob-card.accent.is-in { transform: translateY(-6px); }
  html:not(.js) .prob-card.accent { transform: translateY(-6px); }
}
.prob-card.accent .prob-price {
  color: #fff;
  border-bottom-color: color-mix(in oklab, #fff 30%, transparent);
  font-size: 32px;
  text-decoration: none;
}
.prob-card.accent p { color: color-mix(in oklab, #fff 92%, transparent); }
.prob-card.accent b { color: #fff; }

/* ==================
   Strength
   ================== */
.strength-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
  margin-top: 40px;
}
.s-card {
  grid-column: span 2;
  padding: 30px 26px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 10px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  position: relative; overflow: hidden;
}
.s-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--primary-3), var(--accent));
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.s-card:hover::before { opacity: 1; }
.s-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: color-mix(in oklab, var(--primary) 45%, var(--border)); }
.s-card-lg { grid-column: span 4; grid-row: span 2; }
.s-card-cta {
  grid-column: span 2;
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border-color: var(--border-2);
  justify-content: space-between;
}
.s-num {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px; letter-spacing: .2em;
  color: var(--primary); font-weight: 600;
}
.s-card h3 {
  font-size: clamp(18px, 2vw, 24px); line-height: 1.3;
  margin-top: 4px;
}
.s-card h3 b {
  background: linear-gradient(180deg, transparent 60%, color-mix(in oklab, var(--accent) 45%, transparent) 60%);
  padding: 0 3px;
}
.s-card h3 em {
  font-style: normal;
  background: linear-gradient(120deg, #EFEAFF, #D2C4FF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
[data-theme="light"] .s-card h3 em {
  background: linear-gradient(120deg, #6D28D9, #3B0764);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.s-card p { color: var(--fg-2); font-size: 15px; }
.s-visual {
  margin-top: auto;
  background: #0B0714; color: #E9E4F8;
  border-radius: var(--radius); padding: 18px 20px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13.5px; line-height: 1.7;
  border: 1px solid #241A3A;
  box-shadow: inset 0 0 40px rgba(124,58,237,.25);
  overflow: auto;
}
.s-visual .c-hi { color: #C4B5FD; }
.s-visual pre { margin: 0; }

/* ==================
   Price
   ================== */
.price { background: var(--bg-2); }
.price-card {
  max-width: 720px; margin: 40px auto 0;
  padding: 40px 40px 32px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
  position: relative; overflow: hidden;
}
.price-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(160deg, color-mix(in oklab, var(--primary) 12%, transparent), transparent 40%);
  pointer-events: none;
}
.price-badge {
  display: inline-block; font-size: 12px; font-weight: 600;
  letter-spacing: .15em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff;
  margin-bottom: 24px;
}
.price-num {
  display: flex; align-items: baseline; gap: 4px;
  color: var(--fg); position: relative;
}
.price-krw { font-size: 32px; font-weight: 600; color: var(--fg-2); }
.price-big {
  font-size: clamp(56px, 9vw, 96px); font-weight: 700; letter-spacing: -0.045em;
  line-height: 1;
  background: linear-gradient(120deg, #EFEAFF, #D2C4FF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
[data-theme="light"] .price-big {
  background: linear-gradient(120deg, #6D28D9, #3B0764);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.price-tail { font-size: 16px; color: var(--muted); margin-left: 6px; }
.price-note { color: var(--fg-2); margin-top: 8px; font-size: 14.5px; }

.price-list { margin: 28px 0 24px; display: grid; gap: 12px; }
.price-list li {
  display: grid; grid-template-columns: 22px 1fr; align-items: start; gap: 10px;
  font-size: 15.5px; color: var(--fg);
}
.price-list li svg {
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  border-radius: 6px; padding: 2px;
  width: 22px; height: 22px;
}

.price-extra {
  margin-top: 20px; border-top: 1px solid var(--border); padding-top: 16px;
}
.price-extra summary {
  cursor: pointer; font-size: 14.5px; color: var(--fg-2);
  font-weight: 500;
  list-style: none;
}
.price-extra summary::-webkit-details-marker { display: none; }
.price-extra summary::before {
  content: "＋ "; color: var(--primary); font-weight: 700;
}
.price-extra[open] summary::before { content: "− "; }
.price-extra ul { margin-top: 12px; padding-left: 20px; }
.price-extra li { list-style: disc; color: var(--fg-2); font-size: 14.5px; margin: 4px 0; }

/* ==================
   Process
   ================== */
.process-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px; margin-top: 40px; counter-reset: proc;
}
.proc {
  padding: 30px 28px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border);
  position: relative;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.proc:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: var(--border-2); }
.proc::before {
  content: ""; position: absolute; left: 100%; top: 50%;
  width: 20px; height: 1px; background: var(--border-2);
  transform: translateX(0);
}
.proc:last-child::before { display: none; }
.proc-step {
  display: inline-block;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px; letter-spacing: .18em;
  color: var(--primary); font-weight: 600;
  padding: 4px 10px; border-radius: 999px;
  background: color-mix(in oklab, var(--primary) 10%, transparent);
  margin-bottom: 14px;
}
.proc h3 { font-size: 22px; margin-bottom: 8px; }
.proc p { color: var(--fg-2); font-size: 15px; }

/* ==================
   Portfolio
   ================== */
.folio-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px; margin-top: 40px;
}
.folio {
  grid-column: span 2;
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  aspect-ratio: 4 / 5;
  border: 1px solid var(--border);
  background: var(--surface-2);
  isolation: isolate;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.folio.wide { grid-column: span 4; aspect-ratio: 8 / 5; }
.folio img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 600ms var(--ease), filter 400ms var(--ease);
  filter: saturate(1) contrast(1);
}
.folio:hover img { transform: scale(1.06); filter: saturate(1.15); }
.folio::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11,7,20,.85) 100%);
  z-index: 1;
}
.folio-meta {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 22px;
  color: #fff; z-index: 2;
}
.folio-meta .folio-tag {
  display: inline-block; font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
  background: color-mix(in oklab, #fff 18%, transparent);
  border: 1px solid color-mix(in oklab, #fff 30%, transparent);
  margin-bottom: 10px;
  backdrop-filter: blur(6px);
}
.folio-meta h3 { font-size: clamp(18px, 2vw, 22px); margin-bottom: 4px; color: #fff; }
.folio-meta p { color: color-mix(in oklab, #fff 80%, transparent); font-size: 14px; }
.folio-meta p b {
  color: #C4B5FD;
}
.folio:hover { box-shadow: var(--shadow-2); }

/* ==================
   Reviews
   ================== */
.reviews { background: var(--bg-2); }
.rev-grid {
  columns: 3; column-gap: 18px;
  margin-top: 40px;
}
.rev {
  break-inside: avoid;
  margin: 0 0 18px;
  padding: 26px 24px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column; gap: 12px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.rev:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.rev-stars { color: #F59E0B; font-size: 16px; letter-spacing: 2px; }
.rev-stars .dim { color: var(--border-2); }
.rev p { font-size: 15.5px; color: var(--fg); line-height: 1.65; }
.rev footer {
  font-size: 13.5px; color: var(--muted);
  padding-top: 10px; border-top: 1px dashed var(--border);
}
.rev footer b { color: var(--fg); font-weight: 600; margin-right: 6px; }

/* ==================
   FAQ
   ================== */
.faq-list { margin-top: 32px; display: grid; gap: 10px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.faq-item:hover { border-color: var(--border-2); }
.faq-item[open] { box-shadow: var(--shadow-1); border-color: var(--primary); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 20px 22px;
  font-weight: 600; font-size: 16.5px;
  cursor: pointer; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.chev {
  width: 20px; height: 20px; position: relative; flex-shrink: 0;
  transition: transform var(--dur) var(--ease);
  color: var(--primary);
}
.chev::before, .chev::after {
  content: ""; position: absolute; left: 50%; top: 50%; background: currentColor; border-radius: 2px;
}
.chev::before { width: 12px; height: 2px; transform: translate(-50%,-50%); }
.chev::after  { width: 2px; height: 12px; transform: translate(-50%,-50%); transition: transform var(--dur) var(--ease); }
.faq-item[open] .chev::after { transform: translate(-50%,-50%) rotate(90deg); opacity: 0; }
.faq-body {
  padding: 0 22px 22px; color: var(--fg-2); font-size: 15.5px;
}

/* ==================
   Contact
   ================== */
.contact { background: var(--bg-2); }
.contact-grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px;
  align-items: start;
}
.channels {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px; margin-top: 28px;
}
.channels .ch {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 18px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  color: var(--fg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.channels .ch:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: var(--shadow-1); }
.channels .ch svg {
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  border-radius: 10px; padding: 10px;
  width: 40px; height: 40px;
}
.channels .ch b { display: block; font-size: 15px; }
.channels .ch span { display: block; font-size: 12.5px; color: var(--muted); }

.map-wrap {
  margin-top: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.map-placeholder {
  aspect-ratio: 16 / 6;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px;
  color: var(--fg-2);
  background:
    radial-gradient(600px 200px at 50% 0%, color-mix(in oklab, var(--primary) 14%, transparent), transparent),
    var(--surface-2);
}
.map-placeholder svg { color: var(--primary); }
.map-placeholder b { color: var(--fg); font-size: 16px; }
.map-placeholder span { font-size: 13px; color: var(--muted); }

.contact-form {
  padding: 32px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
  display: grid; gap: 16px;
}
.field { display: grid; gap: 6px; }
.field label { font-size: 13.5px; color: var(--fg-2); font-weight: 500; }
.field input, .field textarea {
  font: inherit;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 12px;
  outline: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus, .field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--primary) 20%, transparent);
  background: var(--surface);
}
.check {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13.5px; color: var(--fg-2);
}
.check input {
  accent-color: var(--primary);
  width: 18px; height: 18px; margin-top: 2px;
}
.form-note { text-align: center; color: var(--muted); font-size: 13px; }

/* ==================
   Footer
   ================== */
.site-footer {
  padding: 64px 0 32px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 40px;
}
.foot-brand { display: flex; align-items: center; gap: 12px; }
.foot-brand b { display: block; font-size: 16px; }
.foot-brand span { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }

.foot-cols {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.foot-cols > div { display: flex; flex-direction: column; gap: 8px; }
.foot-cols b { color: var(--fg); font-size: 13.5px; margin-bottom: 6px; letter-spacing: -0.01em; }
.foot-cols a { font-size: 14px; color: var(--fg-2); transition: color var(--dur) var(--ease); }
.foot-cols a:hover { color: var(--primary); }

.foot-legal {
  grid-column: 1 / -1;
  padding-top: 24px; margin-top: 40px;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  color: var(--muted); font-size: 13px;
}
.foot-legal a { color: var(--fg-2); }
.foot-legal a:hover { color: var(--primary); }
.dot-sep { opacity: .5; }

/* ==================
   Floating kakao FAB
   ================== */
.fab-kakao {
  position: fixed;
  right: 20px; bottom: 96px; z-index: 45;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 18px; border-radius: 999px;
  background: linear-gradient(135deg, #FEE500, #F6D700);
  color: #191600;
  font-weight: 700; font-size: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.fab-kakao:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 14px 36px rgba(0,0,0,.3); }
.fab-kakao svg { color: #191600; }

/* ==================
   Chatbot
   ================== */
.chat { position: fixed; right: 20px; bottom: 20px; z-index: 46; }
.chat-btn {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: 0 12px 32px rgba(76,29,149,.4);
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform var(--dur) var(--ease);
}
.chat-btn:hover { transform: scale(1.05); }
.chat-panel {
  position: absolute; right: 0; bottom: 68px;
  width: min(360px, calc(100vw - 40px));
  max-height: 70vh;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-3);
  display: flex; flex-direction: column;
  overflow: hidden;
  transform-origin: bottom right;
  animation: chatIn 240ms var(--ease);
}
.chat-panel[hidden] { display: none; }
@keyframes chatIn {
  from { opacity: 0; transform: translateY(8px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.chat-head {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
}
.chat-head b { font-size: 15px; }
.chat-head .chat-sub { font-size: 12px; color: color-mix(in oklab, #fff 70%, transparent); margin-left: auto; margin-right: 8px; }
.chat-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4ADE80; box-shadow: 0 0 0 3px rgba(74,222,128,.3);
}
.chat-close { color: #fff; padding: 4px; border-radius: 6px; }
.chat-close:hover { background: rgba(255,255,255,.15); }
.chat-body {
  padding: 14px; overflow-y: auto; flex: 1;
  display: flex; flex-direction: column; gap: 10px;
  min-height: 200px;
}
.msg { max-width: 85%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.55; }
.msg.bot { background: var(--surface-2); color: var(--fg); border-top-left-radius: 4px; align-self: flex-start; }
.msg.user { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; border-top-right-radius: 4px; align-self: flex-end; }
.msg a { text-decoration: underline; text-underline-offset: 3px; }
.chat-quick {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 12px; border-top: 1px solid var(--border);
  background: var(--bg);
}
.chat-quick button {
  padding: 8px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 13px; color: var(--fg);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.chat-quick button:hover { border-color: var(--primary); background: color-mix(in oklab, var(--primary) 10%, transparent); }

/* ==================
   Notice bar
   ================== */
.notice {
  position: relative; z-index: 42;
  background: linear-gradient(90deg, var(--primary-2), var(--primary));
  color: #fff;
  animation: slideDown 400ms var(--ease);
}
@keyframes slideDown { from { transform: translateY(-100%); } to { transform: translateY(0); } }
.notice-inner {
  max-width: var(--wrap); margin: 0 auto;
  padding: 10px 24px;
  display: flex; align-items: center; gap: 10px;
  font-size: 14px;
}
.notice b { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; background: rgba(255,255,255,.18); }
.notice span { flex: 1; }
.notice-close {
  color: #fff; padding: 4px; border-radius: 6px;
  opacity: .8;
}
.notice-close:hover { opacity: 1; background: rgba(255,255,255,.15); }

/* ==================
   Reveal (progressive enhancement)
   ================== */
.reveal { opacity: 1; }
html.js .reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
html.js .reveal.is-in { opacity: 1; transform: none; }

/* ==================
   Responsive
   ================== */
@media (max-width: 1024px) {
  .strength-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .s-card, .s-card-cta { grid-column: span 2; }
  .s-card-lg { grid-column: span 4; grid-row: auto; }
  .folio-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .folio, .folio.wide { grid-column: span 2; aspect-ratio: 4/5; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .rev-grid { columns: 2; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .header-inner { gap: 12px; }
  .nav { display: none; }
  .header-cta .btn { display: none; }
  .menu-btn { display: inline-flex; }
  .nav.is-open {
    display: flex; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    flex-direction: column; padding: 12px 24px 24px; gap: 6px; align-items: stretch;
  }
  .nav.is-open a { padding: 12px 0; font-size: 16px; border-bottom: 1px solid var(--border); }
}

@media (max-width: 720px) {
  .header-inner { height: 60px; }
  .btn { white-space: normal; }

  .hero { min-height: auto; padding: 60px 0 90px; }
  .hero-title { font-size: clamp(36px, 10vw, 60px); }
  .hero-badges { grid-template-columns: 1fr; }

  .problem-grid { grid-template-columns: 1fr 1fr; }
  .prob-card.accent { transform: none; grid-column: span 2; }

  .strength-grid { grid-template-columns: 1fr; }
  .s-card, .s-card-cta, .s-card-lg { grid-column: span 1; grid-row: auto; }

  .price-card { padding: 28px 22px; }

  .process-grid { grid-template-columns: 1fr; }
  .proc::before { display: none; }

  .folio-grid { grid-template-columns: 1fr; }
  .folio, .folio.wide { grid-column: span 1; aspect-ratio: 4/3; }

  .rev-grid { columns: 1; }

  .channels { grid-template-columns: 1fr; }
  .contact-form { padding: 22px; }

  .foot-cols { grid-template-columns: 1fr 1fr; }

  .fab-kakao { bottom: 88px; padding: 10px 14px; font-size: 13px; }
  .chat { right: 12px; bottom: 12px; }
  .fab-kakao { right: 12px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .hero-video { display: none; }
  .hero-orb { animation: none; }
  html.js .reveal { opacity: 1; transform: none; }
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}
button:focus-visible, .btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ==== 강조글자 가독성 최종 규칙 (보라글자 폐기: 흰글자+보라밑줄) ====
   이유: 딥퍼플 보라 글자는 어두운 배경에 묻혀 안 읽힘. 강조는 색이 아니라
   흰 글자 + 보라 밑줄로 표현한다. 다크=흰글자, 라이트=진보라글자. */
.section-title em,
.s-card h3 em,
.hero-badges b {
  background: none !important;
  -webkit-text-fill-color: currentColor !important;
  color: #F6F2FF !important;                 /* near-white, ~17:1 on dark */
  text-decoration: underline;
  text-decoration-color: #A78BFA;
  text-underline-offset: 5px;
  text-decoration-thickness: 3px;
}
[data-theme="light"] .section-title em,
[data-theme="light"] .s-card h3 em,
[data-theme="light"] .hero-badges b {
  color: #5B21B6 !important;                 /* deep purple, ~9:1 on white */
  text-decoration-color: #7C3AED;
}
/* 히어로 제목 강조("수백만원") — 밑줄 없이 흰글자만(히어로는 영상 위) */
.hero-title em {
  background: none !important;
  -webkit-text-fill-color: currentColor !important;
  color: #FFFFFF !important;
}
[data-theme="light"] .hero-title em { color: #4C1D95 !important; }
/* 가격 큰 숫자 "590,000" — 흰글자(밑줄 없이) */
.price-big {
  background: none !important;
  -webkit-text-fill-color: currentColor !important;
  color: #FFFFFF !important;
}
[data-theme="light"] .price-big { color: #5B21B6 !important; }