/* ============================================
   잘만든비디오 - 메인 스타일시트
   화이트 톤 / 미니멀 / 반응형
   ============================================ */

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

:root {
  --color-primary: #1E40AF;
  --color-primary-dark: #1e3a8a;
  --color-primary-light: #3B82F6;
  --color-primary-pale: #EFF6FF;
  --color-accent: #0EA5E9;
  --color-black: #0F172A;
  --color-dark: #1E293B;
  --color-gray-700: #374151;
  --color-gray-600: #4B5563;
  --color-gray-500: #6B7280;
  --color-gray-400: #9CA3AF;
  --color-gray-300: #D1D5DB;
  --color-gray-200: #E5E7EB;
  --color-gray-100: #F3F4F6;
  --color-gray-50: #F9FAFB;
  --color-white: #FFFFFF;
  --color-success: #10B981;
  --color-danger: #EF4444;
  --font-sans: 'Noto Sans KR','Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--radius-xl: 28px;--radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.10),0 4px 12px rgba(0,0,0,.06);
  --shadow-blue: 0 8px 30px rgba(30,64,175,.25);
  --transition-base: 250ms ease;--transition-slow: 400ms ease;
  --container-max: 1200px;--container-pad: 24px;--header-h: 72px;
}

html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);color:var(--color-dark);background:var(--color-white);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition-base)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

.skip-link{position:absolute;top:-100%;left:16px;background:var(--color-primary);color:#fff;padding:8px 16px;border-radius:var(--radius-sm);z-index:9999;font-size:14px;font-weight:600;transition:top 150ms ease}
.skip-link:focus{top:8px}

.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--container-pad)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-sans);font-weight:600;border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;text-decoration:none;border:2px solid transparent;line-height:1}
.btn--lg{padding:16px 32px;font-size:16px}
.btn--full{width:100%;justify-content:center;border-radius:var(--radius-lg);padding:18px 24px;font-size:17px}
.btn--primary{background:var(--color-primary);color:var(--color-white);box-shadow:var(--shadow-blue)}
.btn--primary:hover,.btn--primary:focus-visible{background:var(--color-primary-dark);box-shadow:0 12px 40px rgba(30,64,175,.35);transform:translateY(-2px);color:var(--color-white)}
.btn--secondary{background:var(--color-white);color:var(--color-primary);border-color:var(--color-gray-200);box-shadow:var(--shadow-sm)}
.btn--secondary:hover,.btn--secondary:focus-visible{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px);color:var(--color-primary)}
:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px;border-radius:4px}

/* LOGO */
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:22px;font-weight:900;letter-spacing:-0.5px;color:var(--color-black)}
.logo__dot{color:var(--color-primary);font-size:28px;line-height:1}
.logo--white .logo__text{color:var(--color-white)}
.logo--white .logo__dot{color:var(--color-primary-light)}

/* HEADER */
.header{position:fixed;top:0;left:0;right:0;height:var(--header-h);background:rgba(255,255,255,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid transparent;z-index:900;transition:border-color var(--transition-base),box-shadow var(--transition-base),background var(--transition-base),transform .3s ease}
.header.scrolled{border-bottom-color:var(--color-gray-200);box-shadow:var(--shadow-sm);background:rgba(255,255,255,.97)}
.header__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav__list{display:flex;align-items:center;gap:4px}
.nav__link{display:inline-block;padding:8px 14px;font-size:15px;font-weight:500;color:var(--color-gray-600);border-radius:var(--radius-sm);transition:color var(--transition-base),background var(--transition-base)}
.nav__link:hover,.nav__link:focus-visible{color:var(--color-primary);background:var(--color-primary-pale)}
.nav__link.nav__cta{background:var(--color-primary);color:var(--color-white);padding:10px 20px;border-radius:var(--radius-full);font-weight:600;box-shadow:var(--shadow-blue);margin-left:8px}
.nav__link.nav__cta:hover,.nav__link.nav__cta:focus-visible{background:var(--color-primary-dark);color:var(--color-white);box-shadow:0 8px 24px rgba(30,64,175,.35);transform:translateY(-1px)}

/* HAMBURGER */
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;border-radius:var(--radius-sm);padding:8px;background:transparent;transition:background var(--transition-base)}
.hamburger:hover{background:var(--color-gray-100)}
.hamburger__line{display:block;width:100%;height:2px;background:var(--color-dark);border-radius:2px;transition:transform var(--transition-base),opacity var(--transition-base);transform-origin:center}
.hamburger.open .hamburger__line:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open .hamburger__line:nth-child(2){opacity:0;transform:scaleX(0)}
.hamburger.open .hamburger__line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:767px){
  .hamburger{display:flex}
  .nav{position:fixed;top:var(--header-h);left:0;right:0;background:var(--color-white);border-bottom:1px solid var(--color-gray-200);box-shadow:var(--shadow-lg);transform:translateY(-110%);opacity:0;transition:transform var(--transition-slow),opacity var(--transition-slow);z-index:800;pointer-events:none}
  .nav.open{transform:translateY(0);opacity:1;pointer-events:all}
  .nav__list{flex-direction:column;align-items:stretch;gap:0;padding:16px}
  .nav__link{padding:14px 16px;font-size:16px;border-radius:var(--radius-md)}
  .nav__link.nav__cta{margin:8px 0 0;border-radius:var(--radius-md);text-align:center;padding:14px 16px}
}

/* SECTION */
.section{padding:100px 0}
.section--gray{background:var(--color-gray-50)}
.section__header{text-align:center;max-width:680px;margin:0 auto 64px}
.section__label{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--color-primary);background:var(--color-primary-pale);padding:6px 14px;border-radius:var(--radius-full);margin-bottom:16px}
.section__title{font-size:clamp(28px,4vw,42px);font-weight:800;color:var(--color-black);line-height:1.25;letter-spacing:-.5px;margin-bottom:16px}
.section__desc{font-size:17px;color:var(--color-gray-600);line-height:1.75}
.section__desc strong{color:var(--color-primary);font-weight:700}
.accent{color:var(--color-primary);font-style:normal}
.pc-only{display:block}

/* ANIMATIONS */
.fade-in{opacity:0;transform:translateY(28px);animation:fadeInUp .75s ease forwards}
.fade-in:nth-child(1){animation-delay:.1s}
.fade-in:nth-child(2){animation-delay:.25s}
.fade-in:nth-child(3){animation-delay:.4s}
.fade-in:nth-child(4){animation-delay:.55s}
.fade-in:nth-child(5){animation-delay:.7s}
@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* HERO */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding-top:var(--header-h);background:var(--color-white)}
.hero__bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero__gradient{position:absolute;border-radius:50%;filter:blur(80px);opacity:.12}
.hero__gradient--1{width:700px;height:700px;background:var(--color-primary);top:-200px;right:-200px}
.hero__gradient--2{width:500px;height:500px;background:var(--color-accent);bottom:-100px;left:-100px;opacity:.08}
.hero__gradient--3{width:400px;height:400px;background:#8B5CF6;top:50%;left:50%;transform:translate(-50%,-50%);opacity:.05}
.hero__inner{position:relative;z-index:1;text-align:center;padding:80px 0}
.hero__badge{display:inline-flex;align-items:center;gap:8px;background:var(--color-primary-pale);color:var(--color-primary);font-size:14px;font-weight:600;padding:8px 18px;border-radius:var(--radius-full);border:1px solid rgba(30,64,175,.15);margin-bottom:24px}
.hero__badge .fab{font-size:16px;color:#EF4444}
.hero__title{font-size:clamp(36px,6vw,68px);font-weight:900;color:var(--color-black);line-height:1.18;letter-spacing:-1.5px;margin-bottom:24px}
.hero__title--accent{color:var(--color-primary);font-style:normal;position:relative}
.hero__title--accent::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));border-radius:4px}
.hero__subtitle{font-size:clamp(16px,2vw,19px);color:var(--color-gray-600);line-height:1.75;max-width:560px;margin:0 auto 40px}
.hero__subtitle strong{color:var(--color-primary);font-weight:700}
.hero__actions{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:60px}
.hero__stats{display:flex;align-items:center;justify-content:center;background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:28px 40px;box-shadow:var(--shadow-md);max-width:560px;margin:0 auto}
.hero__stat{flex:1;text-align:center}
.hero__stat-number{display:block;font-size:28px;font-weight:800;color:var(--color-primary);letter-spacing:-.5px;line-height:1.2}
.hero__stat-label{display:block;font-size:12px;font-weight:500;color:var(--color-gray-500);margin-top:4px}
.hero__stat-divider{width:1px;height:40px;background:var(--color-gray-200);margin:0 20px;flex-shrink:0}
.hero__scroll-hint{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:6px;animation:scrollBounce 2s ease-in-out infinite}
.hero__scroll-text{font-size:10px;letter-spacing:2px;color:var(--color-gray-400);font-weight:600}
.hero__scroll-arrow{width:1px;height:32px;background:linear-gradient(to bottom,var(--color-gray-400),transparent)}
@keyframes scrollBounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(6px)}}

/* PROBLEM */
.problem__compare{display:flex;align-items:center;gap:24px;margin-top:8px}
.problem__vs{font-size:20px;font-weight:900;color:var(--color-gray-400);flex-shrink:0;letter-spacing:1px}
.problem__card{flex:1;background:var(--color-white);border:2px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:36px 32px;position:relative;transition:transform var(--transition-base),box-shadow var(--transition-base)}
.problem__card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.problem__card--bad{border-color:var(--color-gray-200);background:var(--color-gray-50)}
.problem__card--good{border-color:var(--color-primary);box-shadow:var(--shadow-blue)}
.problem__card-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;padding:6px 12px;border-radius:var(--radius-full);margin-bottom:20px}
.problem__card-tag--bad{background:var(--color-gray-100);color:var(--color-gray-500)}
.problem__card-tag--good{background:var(--color-primary-pale);color:var(--color-primary)}
.problem__card-stats{margin-bottom:24px}
.problem__big-num{display:block;font-size:36px;font-weight:900;letter-spacing:-1px;line-height:1.1}
.problem__card--bad .problem__big-num{color:var(--color-gray-400)}
.problem__card--good .problem__big-num{color:var(--color-primary)}
.problem__big-label{font-size:13px;color:var(--color-gray-500);font-weight:500}
.problem__list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.problem__list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--color-gray-600)}
.problem__list li .fa-circle-xmark{color:var(--color-danger);font-size:16px;flex-shrink:0}
.problem__list--good li{color:var(--color-dark)}
.problem__list--good li .fa-circle-check{color:var(--color-success);font-size:16px;flex-shrink:0}
.problem__caption{font-size:14px;color:var(--color-gray-500);font-style:italic;border-top:1px solid var(--color-gray-200);padding-top:16px;margin-top:4px}
.problem__chat{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--color-primary-pale);padding-top:16px;margin-top:4px}
.problem__bubble{display:inline-flex;align-items:center;gap:8px;background:var(--color-primary-pale);color:var(--color-primary-dark);font-size:13px;font-weight:600;padding:8px 14px;border-radius:14px 14px 14px 4px;width:fit-content}
.problem__bubble .fas{color:var(--color-primary);font-size:14px}

/* PROCESS */
.process__steps{display:flex;align-items:flex-start;gap:8px;margin-top:8px}
.process__step{flex:1;background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:32px 24px;text-align:center;position:relative;transition:box-shadow var(--transition-base),transform var(--transition-base),border-color var(--transition-base)}
.process__step:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--color-primary)}
.process__step-num{position:absolute;top:16px;left:16px;font-size:11px;font-weight:700;letter-spacing:1px;color:var(--color-gray-400)}
.process__step-icon{width:56px;height:56px;background:var(--color-primary-pale);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--color-primary);font-size:22px;transition:background var(--transition-base),color var(--transition-base)}
.process__step:hover .process__step-icon{background:var(--color-primary);color:var(--color-white)}
.process__step-title{font-size:15px;font-weight:700;color:var(--color-dark);margin-bottom:8px}
.process__step-desc{font-size:13px;color:var(--color-gray-500);line-height:1.65}
.process__arrow{display:flex;align-items:center;padding-top:80px;color:var(--color-gray-300);font-size:16px;flex-shrink:0}

/* SERVICES */
.services__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.service__card{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:36px 28px;position:relative;transition:box-shadow var(--transition-base),transform var(--transition-base),border-color var(--transition-base);overflow:hidden}
.service__card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:var(--color-primary)}
.service__card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));opacity:0;transition:opacity var(--transition-base);border-radius:var(--radius-xl) var(--radius-xl) 0 0}
.service__card:hover::before{opacity:1}
.service__badge{position:absolute;top:20px;right:20px;background:var(--color-primary);color:var(--color-white);font-size:11px;font-weight:700;padding:4px 10px;border-radius:var(--radius-full);letter-spacing:.5px}
.service__icon{width:52px;height:52px;background:var(--color-primary-pale);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--color-primary);font-size:20px;margin-bottom:20px;transition:background var(--transition-base),color var(--transition-base)}
.service__icon--2{background:#F0FDF4;color:#16A34A}
.service__icon--3{background:#FFF7ED;color:#EA580C}
.service__icon--4{background:#F5F3FF;color:#7C3AED}
.service__card:hover .service__icon{background:var(--color-primary);color:#fff}
.service__card:hover .service__icon--2{background:#16A34A;color:#fff}
.service__card:hover .service__icon--3{background:#EA580C;color:#fff}
.service__card:hover .service__icon--4{background:#7C3AED;color:#fff}
.service__title{font-size:18px;font-weight:700;color:var(--color-dark);margin-bottom:12px}
.service__desc{font-size:14px;color:var(--color-gray-500);line-height:1.7;margin-bottom:20px}
.service__features{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}
.service__features li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--color-gray-600)}
.service__features li .fas{color:var(--color-success);font-size:13px;flex-shrink:0}
.service__cta{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:700;color:var(--color-primary);border-bottom:1px solid transparent;transition:gap var(--transition-base),border-color var(--transition-base);padding-bottom:2px}
.service__cta:hover{gap:8px;border-bottom-color:var(--color-primary);color:var(--color-primary)}

/* DIFF */
.diff__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}
.diff__item{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:32px 28px;transition:box-shadow var(--transition-base),transform var(--transition-base)}
.diff__item:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.diff__icon{width:52px;height:52px;background:var(--color-primary-pale);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--color-primary);margin-bottom:20px}
.diff__icon--2{background:#F0FDF4;color:#16A34A}
.diff__icon--3{background:#FFF7ED;color:#EA580C}
.diff__icon--4{background:#FFFBEB;color:#D97706}
.diff__icon--5{background:#F5F3FF;color:#7C3AED}
.diff__icon--6{background:#F0F9FF;color:#0284C7}
.diff__title{font-size:17px;font-weight:700;color:var(--color-dark);margin-bottom:10px}
.diff__desc{font-size:14px;color:var(--color-gray-500);line-height:1.7}

/* STATS */
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:60px}
.stats__item{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:36px 24px;text-align:center;transition:box-shadow var(--transition-base),transform var(--transition-base)}
.stats__item:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.stats__num{display:block;font-size:44px;font-weight:900;color:var(--color-primary);letter-spacing:-1.5px;line-height:1.1;margin-bottom:8px}
.stats__label{font-size:14px;color:var(--color-gray-500);font-weight:500}
.portfolio__cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.portfolio__case{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:32px 28px;transition:box-shadow var(--transition-base),transform var(--transition-base)}
.portfolio__case:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.portfolio__case-category{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.5px;color:var(--color-primary);background:var(--color-primary-pale);padding:4px 12px;border-radius:var(--radius-full);margin-bottom:14px}
.portfolio__case-title{font-size:18px;font-weight:700;color:var(--color-dark);margin-bottom:12px}
.portfolio__case-result{font-size:14px;color:var(--color-gray-600);line-height:1.7;margin-bottom:20px}
.portfolio__case-tags{display:flex;flex-wrap:wrap;gap:6px}
.portfolio__case-tags span{font-size:12px;font-weight:600;color:var(--color-gray-600);background:var(--color-gray-100);padding:4px 10px;border-radius:var(--radius-full)}

/* PORTFOLIO VIDEO GRID */
.portfolio__tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:40px;justify-content:center}
.portfolio__tab{padding:10px 22px;border-radius:var(--radius-full);font-size:14px;font-weight:600;color:var(--color-gray-500);background:var(--color-white);border:2px solid var(--color-gray-200);transition:all var(--transition-base);cursor:pointer}
.portfolio__tab:hover{border-color:var(--color-primary);color:var(--color-primary)}
.portfolio__tab.active{background:var(--color-primary);color:var(--color-white);border-color:var(--color-primary)}
.portfolio__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:36px}
.portfolio__item{background:var(--color-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--color-gray-200);transition:box-shadow var(--transition-base),transform var(--transition-base)}
.portfolio__item:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.portfolio__item.hidden{display:none}
.portfolio__thumb{position:relative;aspect-ratio:16/9;overflow:hidden;cursor:pointer;background:var(--color-gray-100)}
.portfolio__thumb-bg{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform 400ms ease}
.portfolio__thumb:hover .portfolio__thumb-bg{transform:scale(1.05)}
.portfolio__thumb-bg--1{background:linear-gradient(135deg,#1E40AF 0%,#3B82F6 100%)}
.portfolio__thumb-bg--2{background:linear-gradient(135deg,#0F766E 0%,#14B8A6 100%)}
.portfolio__thumb-bg--3{background:linear-gradient(135deg,#7C3AED 0%,#A78BFA 100%)}
.portfolio__thumb-bg--4{background:linear-gradient(135deg,#DC2626 0%,#F87171 100%)}
.portfolio__thumb-bg--5{background:linear-gradient(135deg,#D97706 0%,#FCD34D 100%)}
.portfolio__thumb-bg--6{background:linear-gradient(135deg,#0284C7 0%,#38BDF8 100%)}
.portfolio__thumb-overlay{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.65);color:#fff;font-size:12px;font-weight:600;padding:3px 8px;border-radius:var(--radius-sm);letter-spacing:.3px}
.portfolio__play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;background:rgba(255,255,255,.92);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--color-primary);transition:transform var(--transition-base),box-shadow var(--transition-base);box-shadow:0 4px 20px rgba(0,0,0,.25)}
.portfolio__thumb:hover .portfolio__play{transform:translate(-50%,-50%) scale(1.12);box-shadow:0 6px 28px rgba(0,0,0,.35)}
.portfolio__info{padding:16px 18px 20px}
.portfolio__cat{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.5px;padding:3px 10px;border-radius:var(--radius-full);margin-bottom:8px;text-transform:uppercase}
.portfolio__cat--promo{background:#EFF6FF;color:#1E40AF}
.portfolio__cat--web{background:#F0FDF4;color:#15803D}
.portfolio__cat--ad{background:#FFF7ED;color:#C2410C}
.portfolio__cat--making{background:#F5F3FF;color:#7C3AED}
.portfolio__title{font-size:15px;font-weight:700;color:var(--color-dark);margin-bottom:6px;line-height:1.4}
.portfolio__desc{font-size:13px;color:var(--color-gray-500);line-height:1.6}
/* 유튜브 썸네일 실제 이미지 사용 시 */
.portfolio__thumb.has-thumbnail .portfolio__thumb-bg{background-size:cover;background-repeat:no-repeat}
/* 포트폴리오 가이드 박스 */
.portfolio__guide{margin-top:8px}
.portfolio__guide-inner{display:flex;align-items:flex-start;gap:12px;background:#EFF6FF;border:1px dashed #93C5FD;border-radius:var(--radius-md);padding:16px 20px}
.portfolio__guide-inner i{color:var(--color-primary);font-size:16px;flex-shrink:0;margin-top:2px}
.portfolio__guide-inner p{font-size:13px;color:var(--color-gray-600);line-height:1.7}
.portfolio__guide-inner code{background:rgba(30,64,175,.08);color:var(--color-primary);padding:1px 6px;border-radius:4px;font-family:monospace;font-size:12px}
/* 영상 모달 */
.video-modal{position:fixed;inset:0;z-index:9000;display:flex;align-items:center;justify-content:center;padding:24px}
.video-modal[hidden]{display:none}
.video-modal__backdrop{position:absolute;inset:0;background:rgba(0,0,0,.85);cursor:pointer}
.video-modal__content{position:relative;width:100%;max-width:900px;z-index:1}
.video-modal__close{position:absolute;top:-44px;right:0;width:36px;height:36px;background:rgba(255,255,255,.15);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;transition:background var(--transition-base)}
.video-modal__close:hover{background:rgba(255,255,255,.3)}
.video-modal__frame{position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--radius-md);overflow:hidden}
.video-modal__frame iframe{position:absolute;inset:0;width:100%;height:100%}

/* FAQ */
.faq__container{max-width:780px}
.faq__list{display:flex;flex-direction:column;gap:12px}
.faq__item{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-lg);overflow:hidden;transition:border-color var(--transition-base),box-shadow var(--transition-base)}
.faq__item:hover{border-color:var(--color-primary);box-shadow:var(--shadow-sm)}
.faq__question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 24px;font-size:16px;font-weight:600;color:var(--color-dark);background:transparent;text-align:left;transition:color var(--transition-base),background var(--transition-base)}
.faq__question:hover{color:var(--color-primary);background:var(--color-primary-pale)}
.faq__question[aria-expanded="true"]{color:var(--color-primary);background:var(--color-primary-pale)}
.faq__icon{font-size:14px;transition:transform var(--transition-base);flex-shrink:0;color:var(--color-gray-400)}
.faq__question[aria-expanded="true"] .faq__icon{transform:rotate(45deg);color:var(--color-primary)}
.faq__answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height var(--transition-slow),padding var(--transition-slow)}
.faq__answer.open{padding:8px 24px 22px;max-height:400px}
.faq__answer p{font-size:15px;color:var(--color-gray-600);line-height:1.75;border-top:1px solid var(--color-gray-200);padding-top:16px}

/* CONTACT */
.contact__container{max-width:1000px}
.contact__layout{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:start}
.contact__info-title{font-size:20px;font-weight:700;color:var(--color-dark);margin-bottom:28px}
.contact__info-list{display:flex;flex-direction:column;gap:20px;margin-bottom:28px}
.contact__info-item{display:flex;align-items:flex-start;gap:14px}
.contact__info-icon{width:44px;height:44px;background:var(--color-primary-pale);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--color-primary);font-size:16px;flex-shrink:0}
.contact__info-label{display:block;font-size:12px;font-weight:600;color:var(--color-gray-400);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.contact__info-value{display:block;font-size:16px;font-weight:600;color:var(--color-dark);transition:color var(--transition-base)}
a.contact__info-value:hover{color:var(--color-primary)}
.contact__notice{display:flex;align-items:flex-start;gap:12px;background:var(--color-primary-pale);border:1px solid rgba(30,64,175,.12);border-radius:var(--radius-lg);padding:18px 20px;color:var(--color-primary-dark);font-size:14px;line-height:1.6}
.contact__notice .fas{color:var(--color-primary);font-size:16px;flex-shrink:0;margin-top:2px}
.contact__notice strong{font-weight:700}
.contact__form-wrap{background:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--radius-xl);padding:40px;box-shadow:var(--shadow-md)}
.contact__form{display:flex;flex-direction:column;gap:20px}
.form__group{display:flex;flex-direction:column;gap:6px}
.form__label{font-size:14px;font-weight:600;color:var(--color-dark)}
.form__required{color:var(--color-danger)}
.form__input{font-family:var(--font-sans);font-size:15px;color:var(--color-dark);background:var(--color-gray-50);border:1.5px solid var(--color-gray-200);border-radius:var(--radius-md);padding:13px 16px;transition:border-color var(--transition-base),box-shadow var(--transition-base),background var(--transition-base);outline:none;width:100%}
.form__input:focus{border-color:var(--color-primary);background:var(--color-white);box-shadow:0 0 0 3px rgba(30,64,175,.1)}
.form__input.error{border-color:var(--color-danger);box-shadow:0 0 0 3px rgba(239,68,68,.1)}
.form__input::placeholder{color:var(--color-gray-400)}
.form__select{cursor:pointer;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form__textarea{resize:vertical;min-height:100px}
.form__error{font-size:12px;color:var(--color-danger);font-weight:500;min-height:18px}
.form__hint{font-size:12px;color:var(--color-gray-400)}
.form__group--check{gap:6px}
.form__check-label{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--color-gray-600);cursor:pointer}
.form__check-label input[type="checkbox"]{width:18px;height:18px;border-radius:4px;cursor:pointer;accent-color:var(--color-primary);flex-shrink:0}
.form__link{color:var(--color-primary);text-decoration:underline;font-weight:600}
.contact__success{text-align:center;padding:48px 24px}
.contact__success[hidden]{display:none}
.contact__success-icon{font-size:56px;color:var(--color-success);margin-bottom:20px}
.contact__success h3{font-size:22px;font-weight:700;color:var(--color-dark);margin-bottom:12px}
.contact__success p{font-size:16px;color:var(--color-gray-500);line-height:1.7}

/* FOOTER */
.footer{background:var(--color-black);color:rgba(255,255,255,.65)}
.footer__inner{padding-top:64px;padding-bottom:36px}
.footer__top{display:grid;grid-template-columns:1fr auto;gap:64px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:32px}
.footer__tagline{font-size:14px;line-height:1.65;margin:16px 0 20px;color:rgba(255,255,255,.45)}
.footer__contact{display:flex;flex-direction:column;gap:8px}
.footer__contact-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.55);transition:color var(--transition-base)}
.footer__contact-link:hover{color:var(--color-white)}
.footer__contact-link .fas{width:16px;color:var(--color-primary-light)}
.footer__nav{display:flex;gap:48px}
.footer__nav-title{font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:rgba(255,255,255,.85);margin-bottom:16px}
.footer__nav ul{display:flex;flex-direction:column;gap:10px}
.footer__nav a{font-size:14px;color:rgba(255,255,255,.5);transition:color var(--transition-base)}
.footer__nav a:hover{color:var(--color-white)}
.footer__bottom{display:flex;flex-direction:column;gap:12px}
.footer__biz p{font-size:12px;line-height:1.7;color:rgba(255,255,255,.3)}
.footer__legal{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.footer__legal span{color:rgba(255,255,255,.2);font-size:12px}
.footer__legal-link{font-size:12px;color:rgba(255,255,255,.45);transition:color var(--transition-base)}
.footer__legal-link:hover{color:var(--color-white)}
.footer__copy{font-size:12px;color:rgba(255,255,255,.25)}

/* BACK TO TOP */
.back-to-top{position:fixed;bottom:32px;right:24px;width:48px;height:48px;background:var(--color-primary);color:var(--color-white);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-blue);z-index:800;transition:transform var(--transition-base),box-shadow var(--transition-base),opacity var(--transition-base);opacity:0;pointer-events:none;font-size:16px}
.back-to-top:not([hidden]){opacity:1;pointer-events:all}
.back-to-top:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(30,64,175,.4)}

/* RESPONSIVE */
@media(max-width:1024px){
  .process__steps{flex-wrap:wrap}
  .process__arrow{display:none}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .portfolio__cases{grid-template-columns:repeat(2,1fr)}
  .portfolio__grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  :root{--container-pad:20px}
  .section{padding:72px 0}
  .section__header{margin-bottom:48px}
  .contact__layout{grid-template-columns:1fr;gap:36px}
  .footer__top{grid-template-columns:1fr;gap:40px}
  .footer__nav{gap:32px}
}
@media(max-width:767px){
  :root{--header-h:64px;--container-pad:16px}
  .section{padding:56px 0}
  .section__header{margin-bottom:36px}
  .pc-only{display:none}
  .hero__actions{flex-direction:column;gap:12px}
  .hero__actions .btn{width:100%;justify-content:center}
  .hero__stats{padding:20px 16px}
  .hero__stat-number{font-size:22px}
  .hero__stat-divider{margin:0 12px}
  .problem__compare{flex-direction:column;gap:16px}
  .problem__vs{align-self:center}
  .process__steps{flex-direction:column}
  .services__grid{grid-template-columns:1fr}
  .diff__grid{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stats__num{font-size:32px}
  .portfolio__cases{grid-template-columns:1fr}
  .portfolio__grid{grid-template-columns:1fr}
  .contact__form-wrap{padding:24px 20px}
  .footer__nav{flex-wrap:wrap;gap:24px}
  .back-to-top{bottom:24px;right:16px}
}
@media(max-width:400px){
  .hero__stats{flex-direction:column;gap:16px;padding:24px 20px}
  .hero__stat-divider{width:40px;height:1px;margin:0}
  .stats__grid{grid-template-columns:1fr 1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}