/* ===========================
   삼우ENC 홈페이지 스타일
   =========================== */

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

:root {
  --primary:    #E63946;      /* 빨간 포인트 */
  --primary-dk: #c1121f;
  --dark:       #1a1a2e;
  --dark2:      #16213e;
  --gray:       #6c757d;
  --gray-lt:    #f4f6f9;
  --white:      #ffffff;
  --text:       #333344;
  --border:     #e0e4ea;
  --shadow:     0 4px 24px rgba(0,0,0,.10);
  --shadow-md:  0 8px 40px rgba(0,0,0,.14);
  --radius:     12px;
  --radius-lg:  20px;
  --transition: all .3s ease;
  --font:       'Noto Sans KR', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font); }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

/* ── Section Header ── */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-tag {
  display: inline-block;
  background: rgba(230,57,70,.10);
  color: var(--primary);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  padding: .35rem .9rem;
  border-radius: 50px;
  margin-bottom: .9rem;
}
.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: .7rem;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--gray);
  max-width: 560px;
  margin: 0 auto;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--primary);
  color: #fff;
  padding: .85rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  border: 2px solid var(--primary);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--primary-dk);
  border-color: var(--primary-dk);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230,57,70,.35);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: transparent;
  color: #fff;
  padding: .85rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid rgba(255,255,255,.6);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-secondary:hover {
  background: rgba(255,255,255,.15);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ============================================================
   HEADER
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}
#header.scrolled {
  background: var(--white);
  box-shadow: 0 2px 20px rgba(0,0,0,.10);
  padding: .65rem 0;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: .65rem;
  flex-shrink: 0;
}
/* ── Logo Image ── */
.logo-img {
  height: 52px;
  width: auto;
  display: block;
  transition: var(--transition);
}
#header.scrolled .logo-img { height: 46px; }

/* 헤더: 컬러 로고 단독 사용 */
.logo-img-dark  { display: block; }
.logo-img-white { display: none; }

#main-nav { flex: 1; }
#main-nav ul {
  display: flex;
  justify-content: center;
  gap: .2rem;
}
#main-nav ul li a {
  display: block;
  padding: .5rem .9rem;
  font-size: .95rem;
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
  color: #fff;
}
#header.scrolled #main-nav ul li a { color: var(--text); }
#main-nav ul li a:hover,
#main-nav ul li a.active {
  background: rgba(230,57,70,.12);
  color: var(--primary);
}
#header.scrolled #main-nav ul li a:hover { color: var(--primary); }

.header-cta .btn-call {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: var(--primary);
  color: #fff;
  padding: .6rem 1.3rem;
  border-radius: 50px;
  font-size: .9rem;
  font-weight: 700;
  transition: var(--transition);
  white-space: nowrap;
}
.header-cta .btn-call:hover {
  background: var(--primary-dk);
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: .4rem;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 25px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
#header.scrolled .hamburger span { background: var(--dark); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0; right: -100%;
  width: 75%;
  max-width: 320px;
  height: 100vh;
  background: var(--white);
  box-shadow: -4px 0 30px rgba(0,0,0,.15);
  z-index: 999;
  padding: 5rem 2rem 2rem;
  transition: right .35s cubic-bezier(.4,0,.2,1);
}
.mobile-menu.open { right: 0; }
.mobile-menu ul li + li { border-top: 1px solid var(--border); }
.mobile-menu ul li a {
  display: block;
  padding: 1rem 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  transition: var(--transition);
}
.mobile-menu ul li a:hover { color: var(--primary); padding-left: .5rem; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
}
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(230,57,70,.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(15,52,96,.4) 0%, transparent 50%);
}
/* 패턴 오버레이 */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 50px 50px;
}
.hero-overlay { position: absolute; inset: 0; }

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 6rem;
  padding-bottom: 4rem;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(230,57,70,.2);
  border: 1px solid rgba(230,57,70,.4);
  color: #ff6b6b;
  padding: .45rem 1.1rem;
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero-content h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 1.3rem;
  letter-spacing: -.02em;
}
.hero-content h1 span { color: var(--primary); }
.hero-content > p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.8);
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: 2.2rem;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2.5rem;
  width: fit-content;
  flex-wrap: wrap;
}
.stat-item {
  text-align: center;
  padding: 0 2rem;
}
.stat-item strong {
  display: block;
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}
.stat-item span { font-size: 1.6rem; color: var(--primary); font-weight: 900; }
.stat-item p {
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  margin-top: .3rem;
}
.stat-divider {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,.2);
  flex-shrink: 0;
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll a {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border: 2px solid rgba(255,255,255,.4);
  border-radius: 50%;
  color: rgba(255,255,255,.7);
  font-size: 1rem;
  animation: bounce 2s infinite;
  transition: var(--transition);
}
.hero-scroll a:hover { border-color: var(--primary); color: var(--primary); }
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-section { background: var(--white); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: center;
}
.about-image-wrap { position: relative; }
.about-image-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-img-placeholder {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: rgba(255,255,255,.3);
  border-radius: var(--radius-lg);
}
.about-img-placeholder i { font-size: 5rem; color: var(--primary); opacity: .6; }
.about-img-placeholder span { font-size: 1.5rem; font-weight: 700; color: rgba(255,255,255,.5); }

.about-badge-box {
  position: absolute;
  bottom: 1.5rem; right: -1.5rem;
  background: var(--white);
  border-radius: var(--radius);
  padding: 1rem 1.3rem;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: .8rem;
}
.about-badge-box > i {
  font-size: 1.8rem;
  color: #f4a261;
}
.about-badge-box strong { display: block; font-size: .95rem; font-weight: 700; color: var(--dark); }
.about-badge-box small { font-size: .78rem; color: var(--gray); }

.about-content h3 {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 1.2rem;
}
.about-content h3 span { color: var(--primary); }
.about-content p { color: var(--gray); margin-bottom: 1rem; line-height: 1.8; }
.about-features { margin-top: 1.5rem; display: flex; flex-direction: column; gap: .7rem; }
.about-features li {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text);
}
.about-features li i { color: var(--primary); font-size: .9rem; flex-shrink: 0; }

/* ============================================================
   SERVICES
   ============================================================ */
.services-section { background: var(--gray-lt); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.service-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.2rem;
}
.service-icon.fire     { background: rgba(230,57,70,.12);   color: var(--primary); }
.service-icon.security { background: rgba(15,52,96,.12);    color: #0f3460; }
.service-icon.electric { background: rgba(255,193,7,.15);   color: #e6a817; }
.service-icon.spring   { background: rgba(76,201,180,.12);  color: #2a9d8f; }
.service-icon.door     { background: rgba(108,117,125,.12); color: #495057; }
.service-icon.damper   { background: rgba(142,68,173,.12);  color: #7b2d8b; }

.service-card h3 { font-size: 1.15rem; font-weight: 800; color: var(--dark); margin-bottom: .6rem; }
.service-card > p { font-size: .9rem; color: var(--gray); line-height: 1.7; margin-bottom: 1rem; }
.service-card ul { flex: 1; display: flex; flex-direction: column; gap: .45rem; margin-bottom: 1.3rem; }
.service-card ul li {
  display: flex; align-items: center; gap: .5rem;
  font-size: .875rem; color: var(--text);
}
.service-card ul li i { color: var(--primary); font-size: .75rem; }
.service-link {
  display: inline-flex; align-items: center; gap: .4rem;
  color: var(--primary);
  font-size: .875rem;
  font-weight: 700;
  transition: var(--transition);
  margin-top: auto;
}
.service-link:hover { gap: .7rem; }

/* ============================================================
   WHY US
   ============================================================ */
.why-section {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  position: relative;
  overflow: hidden;
}
.why-section::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 10% 50%, rgba(230,57,70,.15) 0%, transparent 50%),
    radial-gradient(circle at 90% 50%, rgba(15,52,96,.3) 0%, transparent 50%);
}
.why-section .section-tag { background: rgba(230,57,70,.2); }
.why-section .section-header h2 { color: #fff; }
.why-section .section-header p { color: rgba(255,255,255,.6); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1.5rem;
  position: relative;
}
.why-item {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 2.2rem 1.5rem;
  text-align: center;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.why-item:hover {
  background: rgba(230,57,70,.12);
  border-color: rgba(230,57,70,.4);
  transform: translateY(-4px);
}
.why-icon {
  width: 64px; height: 64px;
  background: rgba(230,57,70,.15);
  border: 1px solid rgba(230,57,70,.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  margin: 0 auto 1.2rem;
}
.why-item h4 { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: .6rem; }
.why-item p { font-size: .875rem; color: rgba(255,255,255,.6); line-height: 1.7; }

/* ============================================================
   PRODUCTS
   ============================================================ */
.products-section { background: var(--white); }
.products-tabs {
  display: flex;
  justify-content: center;
  gap: .6rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.tab-btn {
  padding: .6rem 1.4rem;
  border: 2px solid var(--border);
  border-radius: 50px;
  background: none;
  font-size: .9rem;
  font-weight: 600;
  color: var(--gray);
  transition: var(--transition);
}
.tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.tab-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.tab-content { display: none; }
.tab-content.active { display: block; }

.products-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1.5rem;
}
.product-card {
  background: var(--gray-lt);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.5rem;
  text-align: center;
  border: 2px solid var(--border);
  transition: var(--transition);
  position: relative;
}
.product-card:hover {
  border-color: var(--primary);
  background: var(--white);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.product-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dk) 100%);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  margin: 0 auto 1rem;
}
.product-card h4 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: .4rem; }
.product-card p { font-size: .82rem; color: var(--gray); line-height: 1.6; margin-bottom: .8rem; }
.product-tag {
  display: inline-block;
  background: rgba(230,57,70,.1);
  color: var(--primary);
  font-size: .72rem;
  font-weight: 700;
  padding: .2rem .7rem;
  border-radius: 50px;
}

/* ============================================================
   PROCESS
   ============================================================ */
.process-section { background: var(--gray-lt); }
.process-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.process-step {
  flex: 1;
  min-width: 150px;
  max-width: 200px;
  text-align: center;
  padding: 1.5rem 1rem;
  position: relative;
}
.step-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(230,57,70,.12);
  line-height: 1;
  margin-bottom: .5rem;
}
.step-icon {
  width: 64px; height: 64px;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  margin: 0 auto .9rem;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.process-step:hover .step-icon {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: scale(1.1);
}
.process-step h4 { font-size: .95rem; font-weight: 700; color: var(--dark); margin-bottom: .4rem; }
.process-step p { font-size: .8rem; color: var(--gray); line-height: 1.6; }

.process-arrow {
  display: flex; align-items: center; justify-content: center;
  padding: 0 .5rem;
  padding-top: 2.5rem;
  color: var(--primary);
  font-size: 1.2rem;
  opacity: .5;
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-section { background: var(--white); }
.gallery-filter {
  display: flex;
  justify-content: center;
  gap: .6rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.filter-btn {
  padding: .5rem 1.2rem;
  border: 2px solid var(--border);
  border-radius: 50px;
  background: none;
  font-size: .875rem;
  font-weight: 600;
  color: var(--gray);
  transition: var(--transition);
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1.2rem;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}
.gallery-item.hidden { display: none; }

.gallery-placeholder {
  height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  transition: transform .4s ease;
}
.gallery-item:hover .gallery-placeholder { transform: scale(1.05); }

.fire-bg    { background: linear-gradient(135deg, #c1121f 0%, #e63946 100%); }
.security-bg{ background: linear-gradient(135deg, #0f3460 0%, #1a6eb5 100%); }
.electric-bg{ background: linear-gradient(135deg, #e6a817 0%, #ffc107 100%); }
.door-bg    { background: linear-gradient(135deg, #495057 0%, #868e96 100%); }
.fire-bg2   { background: linear-gradient(135deg, #9b1c1f 0%, #e63946 100%); }
.electric-bg2{ background: linear-gradient(135deg, #2a9d8f 0%, #4cc9b0 100%); }

.gallery-placeholder i { font-size: 3.5rem; color: rgba(255,255,255,.6); }
.gallery-placeholder span { font-size: .9rem; color: rgba(255,255,255,.7); font-weight: 600; }

.gallery-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,.8) 0%, transparent 100%);
  padding: 1.5rem 1.2rem .8rem;
  transform: translateY(100%);
  transition: transform .3s ease;
}
.gallery-item:hover .gallery-overlay { transform: translateY(0); }
.gallery-overlay h5 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: .2rem; }
.gallery-overlay p { font-size: .8rem; color: rgba(255,255,255,.75); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section { background: var(--gray-lt); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 3rem;
  align-items: start;
}
.contact-info h3 {
  font-size: 1.5rem; font-weight: 800; color: var(--dark);
  margin-bottom: .8rem;
}
.contact-info > p { color: var(--gray); margin-bottom: 2rem; line-height: 1.8; }

.contact-list { display: flex; flex-direction: column; gap: 1.2rem; margin-bottom: 2rem; }
.contact-list li {
  display: flex; align-items: center; gap: 1rem;
}
.contact-icon {
  width: 46px; height: 46px; flex-shrink: 0;
  background: var(--white);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
  box-shadow: var(--shadow);
}
.contact-list li strong { display: block; font-size: .875rem; font-weight: 700; color: var(--dark); }
.contact-list li a, .contact-list li span {
  font-size: .875rem; color: var(--gray);
}
.contact-list li a:hover { color: var(--primary); }

.emergency-box {
  display: flex; align-items: center; gap: 1rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dk) 100%);
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.5rem;
  color: #fff;
}
.emergency-box > i { font-size: 2rem; flex-shrink: 0; }
.emergency-box strong { display: block; font-size: 1rem; font-weight: 700; margin-bottom: .2rem; }
.emergency-box p { font-size: .82rem; opacity: .85; }

/* Contact Form */
.contact-form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}
.contact-form h3 {
  font-size: 1.3rem; font-weight: 800; color: var(--dark);
  margin-bottom: 1.8rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}
.form-group { margin-bottom: 1.2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: .4rem;
}
.required { color: var(--primary); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
  font-family: var(--font);
  color: var(--text);
  transition: var(--transition);
  background: var(--gray-lt);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(230,57,70,.1);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.btn-submit {
  width: 100%;
  padding: 1rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  transition: var(--transition);
  margin-top: .5rem;
}
.btn-submit:hover {
  background: var(--primary-dk);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230,57,70,.4);
}

/* 폼 전송 완료 메시지 */
.form-success-msg {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  text-align: center;
  padding: 2rem 1rem;
  background: rgba(39,103,73,.08);
  border: 2px solid rgba(39,103,73,.25);
  border-radius: var(--radius-lg);
  color: #1a6640;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.7;
  margin-top: .5rem;
}
.form-success-msg i {
  font-size: 2.5rem;
  color: #27ae60;
}
.form-success-msg small {
  font-size: .875rem;
  font-weight: 400;
  color: var(--gray);
}

/* ============================================================
   BOARD SHORTCUT (문의 섹션 내 게시판 바로가기)
   ============================================================ */
.board-shortcut {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 2.8rem;
}
.shortcut-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.6rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}
.shortcut-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.shortcut-icon {
  width: 52px; height: 52px; flex-shrink: 0;
  background: rgba(230,57,70,.1);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  transition: var(--transition);
}
.shortcut-card:hover .shortcut-icon {
  background: var(--primary);
  color: #fff;
}
.shortcut-text {
  flex: 1;
  min-width: 0;
}
.shortcut-text strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: .25rem;
}
.shortcut-text span {
  font-size: .82rem;
  color: var(--gray);
  line-height: 1.5;
}
.shortcut-arrow {
  color: var(--primary);
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform .25s ease;
}
.shortcut-card:hover .shortcut-arrow {
  transform: translateX(5px);
}

@media (max-width: 600px) {
  .board-shortcut {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding-top: 4rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo .logo-text strong { color: #fff; }
.footer-brand .logo .logo-text small { color: rgba(255,255,255,.5); }
.footer-brand > p {
  margin-top: 1rem;
  font-size: .875rem;
  line-height: 1.8;
  max-width: 300px;
}
.footer-socials {
  display: flex;
  gap: .7rem;
  margin-top: 1.5rem;
}
.footer-socials a {
  width: 38px; height: 38px;
  background: rgba(255,255,255,.08);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}
.footer-socials a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1.5rem;
}
.footer-col h5 {
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-col ul { display: flex; flex-direction: column; gap: .55rem; }
.footer-col ul li {
  font-size: .83rem;
  display: flex; align-items: center; gap: .5rem;
}
.footer-col ul li i { color: var(--primary); font-size: .75rem; flex-shrink: 0; }
.footer-col ul li a:hover { color: var(--primary); }

.footer-bottom {
  text-align: center;
  padding: 1.5rem 0;
  font-size: .8rem;
  color: rgba(255,255,255,.4);
}

/* ============================================================
   SCROLL TOP
   ============================================================ */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 48px; height: 48px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(230,57,70,.4);
  opacity: 0; pointer-events: none;
  transform: translateY(12px);
  transition: var(--transition);
  z-index: 900;
}
.scroll-top-btn.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.scroll-top-btn:hover { background: var(--primary-dk); transform: translateY(-2px); }

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed;
  bottom: 5.5rem; right: 2rem;
  background: #2d3748;
  color: #fff;
  padding: .9rem 1.5rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all .35s ease;
  z-index: 1100;
  max-width: 320px;
  box-shadow: var(--shadow-md);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.success { background: #276749; }
.toast.error   { background: #9b1c1f; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { gap: 2.5rem; }
}

@media (max-width: 900px) {
  #main-nav, .header-cta { display: none; }
  .hamburger { display: flex; }
  .header-inner { gap: auto; }

  .about-grid { grid-template-columns: 1fr; }
  .about-badge-box { right: 1rem; }
  .contact-grid { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-links { grid-template-columns: repeat(3,1fr); }

  .process-steps { gap: .5rem; }
  .process-arrow { padding-top: 1rem; font-size: 1rem; }
}

@media (max-width: 700px) {
  .section { padding: 3.5rem 0; }
  .section-header h2 { font-size: 1.75rem; }

  .hero-stats {
    padding: 1rem 1.2rem;
    gap: 0;
  }
  .stat-item { padding: 0 .8rem; }
  .stat-item strong { font-size: 1.6rem; }
  .stat-divider { height: 36px; }

  .services-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }

  .process-steps {
    flex-direction: column;
    align-items: center;
  }
  .process-arrow { transform: rotate(90deg); padding: .3rem 0; }
  .process-step { max-width: 100%; width: 100%; }

  .form-row { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; }

  .hero-btns { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .hero-stats {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
  }
  .footer-links { grid-template-columns: 1fr; }
}

/* ============================================================
   품질보증 심볼마크 섹션
   ============================================================ */
.quality-section {
  background: #f8fafc;
  border-top: 1px solid #e9ecef;
  border-bottom: 1px solid #e9ecef;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.quality-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
  border: 1px solid #e9ecef;
  transition: var(--transition);
}
.quality-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  border-color: var(--primary);
}

/* 심볼 원형 아이콘 */
.quality-symbol {
  display: flex;
  justify-content: center;
  margin-bottom: 1.2rem;
}
.qs-inner {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-weight: 800;
  position: relative;
  border: 3px solid currentColor;
}
.qs-inner i { font-size: 1.5rem; }
.qs-label { font-size: .65rem; font-weight: 800; letter-spacing: 1px; line-height: 1; }
.qs-big   { font-size: 1.4rem; font-weight: 900; letter-spacing: -1px; }

/* 색상별 테마 */
.qs-fire  { color: #E63946; background: rgba(230,57,70,.08); }
.qs-ks    { color: #1558B0; background: rgba(21,88,176,.08); }
.qs-as    { color: #2E7D32; background: rgba(46,125,50,.08); }
.qs-safe  { color: #E65100; background: rgba(230,81,0,.08); }

.quality-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: .5rem;
}
.quality-card p {
  font-size: .85rem;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 1rem;
}
.quality-badge {
  display: inline-block;
  padding: .3rem .9rem;
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 700;
  background: var(--primary);
  color: #fff;
  letter-spacing: .5px;
}

@media (max-width: 900px) {
  .quality-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .quality-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .quality-card { padding: 1.4rem 1rem; }
  .qs-inner { width: 64px; height: 64px; }
}

/* ============================================================
   사진 첨부 기능 (무료 견적 폼)
   ============================================================ */
.photo-drop-zone {
  border: 2px dashed #cbd5e0;
  border-radius: 10px;
  padding: 22px 16px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  background: #fafbfc;
}
.photo-drop-zone:hover,
.photo-drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(230,57,70,.04);
}
.photo-drop-zone i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 8px;
  display: block;
}
.photo-drop-zone p {
  font-size: .9rem;
  color: var(--gray);
  margin-bottom: 4px;
}
.photo-drop-zone p strong { color: var(--primary); }
.photo-drop-zone span { font-size: .78rem; color: #aaa; }

.photo-preview-list {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.photo-thumb {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid #e2e8f0;
  flex-shrink: 0;
}
.photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.photo-thumb .remove-photo {
  position: absolute;
  top: 3px; right: 3px;
  background: rgba(0,0,0,.55);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 20px; height: 20px;
  font-size: 11px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  line-height: 1;
  transition: background .2s;
}
.photo-thumb .remove-photo:hover { background: #e53e3e; }
.photo-count-info {
  font-size: .8rem;
  color: var(--gray);
  margin-top: 6px;
}