/* ============================================================
   DYS Homepage — Dark + Blue Neon Theme
   ============================================================ */

:root {
  --bg:        #070b16;
  --bg-2:      #0b1120;
  --bg-3:      #0f172a;
  --surface:   rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border:    rgba(120, 160, 255, 0.14);
  --border-2:  rgba(120, 160, 255, 0.28);

  --blue:      #3b82f6;
  --blue-2:    #2563eb;
  --cyan:      #22d3ee;
  --neon:      #38bdf8;

  --text:      #eef2fb;
  --muted:     #9aa8c7;
  --muted-2:   #6b7a9c;

  --grad:      linear-gradient(100deg, #60a5fa 0%, #22d3ee 60%, #818cf8 100%);
  --glow:      0 0 40px rgba(56, 189, 248, 0.35);

  --radius:    18px;
  --maxw:      1180px;
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.grad {
  background: linear-gradient(100deg, #60a5fa, #22d3ee, #818cf8, #60a5fa);
  background-size: 250% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: aurora 7s linear infinite;
}

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.badge {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--neon);
  padding: 6px 14px;
  border: 1px solid var(--border-2);
  border-radius: 100px;
  background: rgba(56, 189, 248, 0.06);
  margin-bottom: 22px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15.5px;
  font-weight: 700;
  padding: 15px 28px;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.btn__ico { width: 19px; height: 19px; fill: currentColor; }
.btn--primary {
  background: var(--grad);
  color: #06121f;
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.35);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 14px 44px rgba(56, 189, 248, 0.5); }
.btn--ghost {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border-2);
}
.btn--ghost:hover { transform: translateY(-3px); border-color: var(--neon); box-shadow: var(--glow); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 11, 22, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.nav__logo-mark {
  font-size: 24px; font-weight: 800; letter-spacing: 0.02em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.nav__logo .nav__logo-mark { font-size: 32px; }
.nav__logo { display: flex; align-items: center; }
.nav__logo-img { height: 38px; width: auto; display: block; }
.nav__menu { display: flex; align-items: center; gap: 34px; }
.nav__menu a { font-size: 15px; font-weight: 600; color: var(--muted); transition: color .2s; }
.nav__menu a:hover { color: var(--text); }
.nav__cta {
  color: var(--neon) !important;
  border: 1px solid var(--border-2);
  padding: 9px 18px; border-radius: 100px;
  background: rgba(56, 189, 248, 0.06);
  transition: box-shadow .25s, transform .25s !important;
}
.nav__cta:hover { box-shadow: var(--glow); transform: translateY(-2px); }

.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; padding: 120px 0 80px; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__grid {
  position: absolute; inset: -50%;
  background-image:
    linear-gradient(rgba(120,160,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,255,.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 55% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 55% at 50% 40%, #000 30%, transparent 75%);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.hero__glow--1 { width: 520px; height: 520px; background: radial-gradient(circle, #1d4ed8, transparent 70%); top: -120px; left: -60px; }
.hero__glow--2 { width: 460px; height: 460px; background: radial-gradient(circle, #0891b2, transparent 70%); bottom: -140px; right: -40px; }

.hero__inner { position: relative; z-index: 1; text-align: center; max-width: 900px; }
.hero__eyebrow {
  font-size: 14px; font-weight: 700; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--neon); margin-bottom: 24px;
}
.hero__title { font-size: clamp(34px, 6vw, 66px); font-weight: 800; line-height: 1.14; letter-spacing: -0.02em; margin-bottom: 26px; }
.hero__desc { font-size: clamp(15px, 2.2vw, 19px); color: var(--muted); margin-bottom: 40px; }
.hero__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 30px; }
.hero__note { font-size: 14.5px; color: var(--muted-2); }

/* ============================================================
   STATS
   ============================================================ */
/* Hero stats strip */
.hero__stats {
  display: flex; justify-content: center; flex-wrap: wrap; margin-top: 56px;
  border: 1px solid var(--border); border-radius: 20px; overflow: hidden;
  background: rgba(255,255,255,.03); backdrop-filter: blur(12px);
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.hstat { flex: 1; min-width: 150px; padding: 26px 20px; text-align: center; border-right: 1px solid var(--border); }
.hstat:last-child { border-right: 0; }
.hstat__num {
  font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; letter-spacing: -0.02em;
  background: linear-gradient(100deg, #60a5fa, #22d3ee, #818cf8, #60a5fa);
  background-size: 250% auto; -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; animation: aurora 7s linear infinite;
  filter: drop-shadow(0 0 14px rgba(56,189,248,.3));
}
.hstat__label { font-size: 14px; color: var(--muted); margin-top: 6px; }

/* ============================================================
   SECTIONS (generic)
   ============================================================ */
.section { padding: 110px 0; position: relative; }
.section--alt { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 50%, var(--bg) 100%); }
.section__head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section__title { font-size: clamp(28px, 4.5vw, 44px); font-weight: 800; line-height: 1.22; letter-spacing: -0.02em; }
.section__sub { font-size: 16.5px; color: var(--muted); margin-top: 20px; }

/* ---------- ABOUT ---------- */
.about__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.about__card { padding: 36px 30px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; }
.about__card:hover { transform: translateY(-6px); border-color: var(--border-2); box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.about__ico { font-size: 34px; margin-bottom: 18px; }
.about__card h3 { font-size: 21px; font-weight: 700; margin-bottom: 12px; }
.about__card p { color: var(--muted); font-size: 15.5px; }

/* ---------- SERVICES ---------- */
.svc__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 30px; }
.svc__card { padding: 30px 28px; position: relative; overflow: hidden; transition: transform .3s var(--ease), border-color .3s; }
.svc__card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.svc__card:hover { transform: translateY(-5px); border-color: var(--border-2); }
.svc__card:hover::before { transform: scaleX(1); }
.svc__tag {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--neon); background: rgba(56,189,248,.08); border: 1px solid var(--border-2);
  padding: 4px 12px; border-radius: 8px; margin-bottom: 16px;
}
.svc__card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.svc__card p { color: var(--muted); font-size: 15px; }

/* ---------- PREMIUM ---------- */
.premium {
  margin-top: 24px; padding: 44px; display: flex; align-items: center; gap: 34px; flex-wrap: wrap;
  border-color: var(--border-2);
  background:
    radial-gradient(circle at 15% 0%, rgba(56,189,248,.12), transparent 55%),
    var(--surface);
  position: relative; overflow: hidden;
}
.premium__badge {
  position: absolute; top: 22px; right: 26px;
  font-size: 12px; font-weight: 800; letter-spacing: .14em; color: var(--cyan);
}
.premium__body { flex: 1; min-width: 280px; }
.premium__body h3 { font-size: 26px; font-weight: 800; margin-bottom: 12px; }
.premium__body p { color: var(--muted); font-size: 16px; max-width: 620px; }
.premium__chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.premium__chips span {
  font-size: 14px; font-weight: 600; padding: 7px 16px; border-radius: 100px;
  background: rgba(255,255,255,.05); border: 1px solid var(--border);
}
.premium__cta { white-space: nowrap; }

/* ---------- WHY ---------- */
.why__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 34px; }
.why__card { padding: 34px 30px; transition: transform .3s var(--ease), border-color .3s; }
.why__card:hover { transform: translateY(-6px); border-color: var(--border-2); }
.why__ico { font-size: 30px; margin-bottom: 16px; }
.why__card h3 { font-size: 20px; font-weight: 700; margin-bottom: 18px; }
.why__card ul li {
  position: relative; padding-left: 22px; color: var(--muted); font-size: 15.5px; margin-bottom: 10px;
}
.why__card ul li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%;
  background: var(--neon); box-shadow: 0 0 8px var(--neon);
}

/* ---------- EFFECT ---------- */
.effect {
  margin-top: 20px; padding: 48px; border-radius: 24px; text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(37,99,235,.14), transparent 60%), var(--bg-2);
  border: 1px solid var(--border);
}
.effect__title { font-size: 26px; font-weight: 800; margin-bottom: 10px; }
.effect__lead { color: var(--muted); font-size: 16px; margin-bottom: 34px; }
.effect__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.effect__item {
  padding: 24px 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 8px;
}
.effect__item strong { font-size: 16px; color: var(--neon); }
.effect__item span { font-size: 13.5px; color: var(--muted); }

/* ---------- SUPPORT ---------- */
.support__wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.support__box { padding: 40px 36px; }
.support__box h3 { font-size: 22px; font-weight: 700; margin-bottom: 24px; }
.check li {
  position: relative; padding-left: 30px; color: var(--muted); font-size: 15.5px; margin-bottom: 14px;
}
.check li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--neon); font-weight: 800; font-size: 15px;
  width: 20px; height: 20px; display: grid; place-items: center;
  background: rgba(56,189,248,.1); border-radius: 6px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact { position: relative; padding: 120px 0; overflow: hidden; text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-3) 100%); }
.contact__bg { position: absolute; inset: 0; z-index: 0; opacity: .6; }
.contact__bg .hero__glow--1 { left: 50%; transform: translateX(-50%); top: -100px; }
.contact__inner { position: relative; z-index: 1; }
.contact__title { font-size: clamp(30px, 5vw, 50px); font-weight: 800; margin: 8px 0 20px; letter-spacing: -0.02em; }
.contact__sub { font-size: 17px; color: var(--muted); margin-bottom: 52px; }
.contact__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.contact__card { padding: 40px 28px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; }
.contact__card:hover { transform: translateY(-8px); border-color: var(--border-2); box-shadow: var(--glow); }
.contact__ico {
  width: 60px; height: 60px; margin: 0 auto 20px; border-radius: 16px;
  display: grid; place-items: center; background: rgba(56,189,248,.1); border: 1px solid var(--border-2);
}
.contact__ico svg { width: 28px; height: 28px; fill: var(--neon); }
.contact__ico--kakao { background: rgba(255,225,0,.12); border-color: rgba(255,225,0,.4); }
.contact__ico--kakao svg { fill: #ffe100; }
.contact__card h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.contact__card p { color: var(--muted); font-size: 15px; margin-bottom: 18px; word-break: break-all; }
.contact__go { font-size: 14.5px; font-weight: 700; color: var(--neon); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--border); padding: 44px 0; background: var(--bg-2); }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer__brand p { color: var(--muted); font-size: 14.5px; margin-top: 8px; }
.footer__info { text-align: right; color: var(--muted); font-size: 14px; }
.footer__copy { color: var(--muted-2); margin-top: 6px; font-size: 13px; }

/* ============================================================
   FLOATING WIDGET
   ============================================================ */
.floating { position: fixed; right: 22px; bottom: 22px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.floating__btn {
  width: 60px; height: 60px; border-radius: 50%; border: 1px solid var(--border-2);
  background: var(--bg-3); color: var(--text); cursor: pointer;
  display: grid; place-items: center; gap: 2px;
  box-shadow: 0 8px 24px rgba(0,0,0,.4); transition: transform .25s var(--ease), box-shadow .25s;
}
.floating__btn svg { width: 24px; height: 24px; fill: currentColor; }
.floating__btn span { font-size: 10px; font-weight: 700; }
.floating__btn:hover { transform: translateY(-4px); box-shadow: var(--glow); }
.floating__btn--kakao { background: #ffe100; color: #3c1e1e; border-color: #ffe100; }
.floating__btn--kakao:hover { box-shadow: 0 0 30px rgba(255,225,0,.5); }
.floating__top { opacity: 0; pointer-events: none; transition: opacity .3s, transform .25s; }
.floating__top.show { opacity: 1; pointer-events: auto; }
.floating__top svg { fill: var(--neon); }

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   MOTION & FLASH — keyframes
   ============================================================ */
@keyframes aurora     { to { background-position: 250% center; } }
@keyframes floatA     { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px,-30px) scale(1.08); } }
@keyframes floatB     { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-35px,25px) scale(1.12); } }
@keyframes floatC     { 0%,100% { transform: translate(-50%,0) scale(1); } 50% { transform: translate(-50%,-30px) scale(1.1); } }
@keyframes marquee    { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes glowPulse  { 0%,100% { box-shadow: 0 0 0 1px var(--border-2), 0 0 30px rgba(56,189,248,.15); } 50% { box-shadow: 0 0 0 1px var(--neon), 0 0 55px rgba(56,189,248,.4); } }
@keyframes kakaoPulse { 0% { box-shadow: 0 0 0 0 rgba(255,225,0,.5); } 70% { box-shadow: 0 0 0 16px rgba(255,225,0,0); } 100% { box-shadow: 0 0 0 0 rgba(255,225,0,0); } }
@keyframes floatY     { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---- Scroll progress bar ---- */
.progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%; z-index: 200;
  background: linear-gradient(90deg, #60a5fa, #22d3ee, #818cf8);
  box-shadow: 0 0 12px rgba(56,189,248,.7); transition: width .1s linear;
}

/* ---- Hero glows: floating motion ---- */
.hero__glow--1 { animation: floatA 12s ease-in-out infinite; }
.hero__glow--2 { animation: floatB 15s ease-in-out infinite; }
.contact__bg .hero__glow--1 { animation: floatC 14s ease-in-out infinite; }
.hero__eyebrow { animation: floatY 4s ease-in-out infinite; }

/* ---- Marquee ---- */
.marquee {
  position: relative; z-index: 2; overflow: hidden; padding: 16px 0;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(56,189,248,.05), rgba(129,140,248,.05));
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track { display: inline-flex; align-items: center; gap: 26px; white-space: nowrap; animation: marquee 26s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span { font-size: 17px; font-weight: 700; color: var(--muted); }
.marquee__track i { color: var(--neon); font-style: normal; font-size: 10px; opacity: .7; }

/* ---- Button shine sweep ---- */
.btn { position: relative; overflow: hidden; }
.btn::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 60%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.45), transparent);
  transform: skewX(-20deg); transition: left .6s var(--ease);
}
.btn:hover::after { left: 130%; }

/* ---- Cursor spotlight on cards ---- */
.about__card, .why__card, .contact__card, .support__box, .svc__card, .whydys__item {
  position: relative; overflow: hidden;
}
.about__card::after, .why__card::after, .contact__card::after,
.support__box::after, .svc__card::after, .whydys__item::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  transition: opacity .35s;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(56,189,248,.16), transparent 62%);
}
.about__card:hover::after, .why__card:hover::after, .contact__card:hover::after,
.support__box:hover::after, .svc__card:hover::after, .whydys__item:hover::after { opacity: 1; }

/* ---- Nav link underline ---- */
.nav__menu a:not(.nav__cta) { position: relative; }
.nav__menu a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav__menu a:not(.nav__cta):hover::after { transform: scaleX(1); }

/* ---- Premium: animated glow + border ---- */
.premium { animation: glowPulse 5s ease-in-out infinite; }
.premium__badge { animation: floatY 3.5s ease-in-out infinite; }

/* ---- Stat numbers glow ---- */
.stat__num { filter: drop-shadow(0 0 14px rgba(56,189,248,.25)); }

/* ---- Floating kakao pulse ---- */
.floating__btn--kakao { animation: kakaoPulse 2.4s ease-out infinite; }

/* ---- Extra reveal variants ---- */
.reveal { will-change: opacity, transform; }
.reveal.in { will-change: auto; }

/* ============================================================
   WHY DYS (3-3) block
   ============================================================ */
.whydys {
  margin-top: 8px; padding: 44px; border-radius: 24px;
  background: radial-gradient(ellipse at 50% -10%, rgba(129,140,248,.12), transparent 60%), var(--bg-2);
  border: 1px solid var(--border);
}
.whydys__lead { text-align: center; font-size: clamp(19px, 3vw, 26px); font-weight: 700; line-height: 1.5; margin-bottom: 34px; }
.whydys__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.whydys__item {
  padding: 24px 22px 24px 26px; border-radius: 16px;
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.whydys__item:hover { transform: translateY(-5px); border-color: var(--border-2); box-shadow: 0 16px 40px rgba(0,0,0,.3); }
.whydys__no { font-size: 13px; font-weight: 800; letter-spacing: .1em; color: var(--neon); opacity: .8; }
.whydys__item strong { display: block; font-size: 18px; font-weight: 700; margin: 6px 0 6px; }
.whydys__item em { font-style: normal; font-size: 14.5px; color: var(--muted); }

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .about__cards, .svc__grid, .why__grid, .whydys__grid { grid-template-columns: 1fr 1fr; }
  .hstat { flex-basis: 50%; min-width: 0; }
  .hstat:nth-child(2) { border-right: 0; }
  .hstat:nth-child(1), .hstat:nth-child(2) { border-bottom: 1px solid var(--border); }
  .effect__grid { grid-template-columns: 1fr 1fr; }
  .contact__cards { grid-template-columns: 1fr; max-width: 420px; }
  .premium { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .nav__menu {
    position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; align-items: stretch;
    background: rgba(7,11,22,.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0; transform: translateY(-120%); transition: transform .35s var(--ease);
  }
  .nav__menu.open { transform: translateY(0); }
  .nav__menu a { padding: 14px 24px; font-size: 16px; }
  .nav__cta { margin: 10px 24px; text-align: center; }
  .nav__toggle { display: flex; }

  .section { padding: 74px 0; }
  .about__cards, .svc__grid, .why__grid, .support__wrap, .whydys__grid { grid-template-columns: 1fr; }
  .whydys { padding: 30px 22px; }
  .effect { padding: 32px 22px; }
  .effect__grid { grid-template-columns: 1fr; }
  .premium { padding: 32px 24px; }
  .footer__inner { flex-direction: column; text-align: center; }
  .footer__info { text-align: center; }
  .floating__btn { width: 54px; height: 54px; }
}

/* ============================================================
   상담 신청 폼 (Contact form)
   ============================================================ */
.cform {
  margin-top: 40px;
  padding: 36px 32px;
  text-align: left;
  border-radius: 20px;
}
.cform__title {
  font-size: clamp(20px, 2.4vw, 26px);
  margin: 0 0 6px;
}
.cform__sub {
  color: var(--muted, #9aa6c4);
  margin: 0 0 24px;
  font-size: 14px;
}
.cform__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cform__field { display: flex; flex-direction: column; }
.cform__field--full { grid-column: 1 / -1; }
.cform__field label {
  font-size: 13px;
  margin-bottom: 7px;
  opacity: .85;
}
.cform__field label span { color: #57c3ff; }
.cform__field input,
.cform__field select,
.cform__field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.04);
  color: inherit;
  font-family: inherit;
  font-size: 14.5px;
  transition: border-color .2s, background .2s;
}
.cform__field textarea { resize: vertical; min-height: 96px; }
.cform__field input:focus,
.cform__field select:focus,
.cform__field textarea:focus {
  outline: none;
  border-color: #2f6bff;
  background: rgba(47,107,255,.06);
}
.cform__field select { cursor: pointer; }
.cform__check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 16px;
  font-size: 13.5px;
  line-height: 1.5;
  opacity: .9;
  cursor: pointer;
}
.cform__check input { margin-top: 2px; width: 17px; height: 17px; flex-shrink: 0; accent-color: #2f6bff; cursor: pointer; }
.cform__submit {
  margin-top: 24px;
  width: 100%;
  justify-content: center;
}
.cform__msg {
  margin: 14px 0 0;
  font-size: 14px;
  min-height: 20px;
  text-align: center;
}
.cform__msg--ok { color: #4ade80; }
.cform__msg--err { color: #ff7b7b; }

@media (max-width: 640px) {
  .cform { padding: 28px 20px; }
  .cform__grid { grid-template-columns: 1fr; }
}

/* ============================================================
   ABOUT — 라인 아이콘 (PDF 2페이지)
   ============================================================ */
.about__ico {
  width: 60px; height: 60px; margin-bottom: 20px;
  display: grid; place-items: center; border-radius: 16px;
  color: var(--neon);
  background: rgba(56,189,248,.08);
  border: 1px solid var(--border-2);
}
.about__ico svg { width: 30px; height: 30px; }

/* ============================================================
   SERVICES — 카드별 작은 라인 아이콘 (PDF 3페이지)
   ============================================================ */
.svc__tag { display: inline-flex; align-items: center; gap: 6px; }
.svc__ico { width: 14px; height: 14px; flex-shrink: 0; }

/* ============================================================
   PREMIUM — 네트워크(연결된 시스템) 배경 (PDF 3페이지)
   ============================================================ */
.premium__net {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: .55;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 45%);
  mask-image: linear-gradient(90deg, transparent, #000 45%);
}
.premium__net svg { width: 100%; height: 100%; display: block; }
.premium__net-lines { fill: none; stroke: var(--neon); stroke-width: 1; opacity: .3; }
.premium__net-dots circle { fill: var(--cyan); opacity: .55; }
.premium__badge, .premium__body, .premium__cta { position: relative; z-index: 1; }

/* ============================================================
   PROCESS — 정밀 타겟 발송 5단계 (PDF 3페이지)
   ============================================================ */
.process { margin-top: 32px; }
.process__head { text-align: center; max-width: 640px; margin: 0 auto 30px; }
.process__title { font-size: clamp(20px, 2.6vw, 26px); font-weight: 800; letter-spacing: -0.01em; }
.process__lead { color: var(--muted); font-size: 15.5px; margin-top: 8px; }
.process__grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.process__step {
  position: relative; padding: 26px 18px; border-radius: 16px; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.process__step:hover { transform: translateY(-5px); border-color: var(--border-2); box-shadow: 0 16px 40px rgba(0,0,0,.3); }
.process__no {
  display: inline-grid; place-items: center; width: 42px; height: 42px; margin: 0 auto 14px;
  border-radius: 50%; font-size: 14px; font-weight: 800; letter-spacing: .02em;
  color: var(--neon); background: rgba(56,189,248,.1); border: 1px solid var(--border-2);
}
.process__step strong { display: block; font-size: 16.5px; font-weight: 700; margin-bottom: 6px; }
.process__step em { font-style: normal; font-size: 13.5px; color: var(--muted); line-height: 1.5; }
.process__step:not(:last-child)::after {
  content: ""; position: absolute; top: 47px; right: -9px; width: 18px; height: 2px;
  background: linear-gradient(90deg, var(--border-2), transparent);
}

/* ============================================================
   PARTNERS — 파트너사 로고 (PDF 4페이지)
   ============================================================ */
.partners { margin-top: 44px; text-align: center; }
.partners__head { max-width: 640px; margin: 0 auto 30px; }
.partners__title { font-size: clamp(20px, 2.8vw, 28px); font-weight: 800; margin-top: 8px; letter-spacing: -0.01em; }
.partners__lead { color: var(--muted); font-size: 15px; margin-top: 8px; }
/* PDF 시안과 동일한 4열 로고월 배치 */
.partners__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; max-width: 920px; margin: 0 auto; }
/* 각 브랜드 로고를 흰색 라운드 칩에 담아 어떤 색 로고도 선명하게 보이도록 함
   (배경색 때문에 로고가 가려지지 않게 로고 뒷배경만 흰색으로 조정) */
.partners__logo {
  display: grid; place-items: center; min-height: 82px; padding: 16px 18px; text-align: center;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 6px 18px rgba(0,0,0,.18);
  transition: transform .25s var(--ease), box-shadow .25s;
}
.partners__logo img {
  display: block; width: auto; height: auto;
  max-width: 100%; max-height: 46px; object-fit: contain;
}
.partners__logo:hover {
  transform: translateY(-3px); box-shadow: 0 16px 36px rgba(0,0,0,.34);
}

/* ---- 신규 섹션 반응형 ---- */
@media (max-width: 900px) {
  .process__grid { grid-template-columns: repeat(3, 1fr); }
  .partners__grid { grid-template-columns: repeat(3, 1fr); }
  .process__step:not(:last-child)::after { display: none; }
}
@media (max-width: 640px) {
  .process__grid { grid-template-columns: 1fr 1fr; }
  .partners__grid { grid-template-columns: repeat(2, 1fr); }
  .about__ico { width: 54px; height: 54px; }
  .about__ico svg { width: 27px; height: 27px; }
}