:root {
  --primary-color: #ffe812;
  --secondary-color: #3c1e1e;
  --accent-color: #423630;
  --highlight-color: #ff6b6b;
}

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

body {
  font-family: "Noto Sans KR", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  color: #333;
}

header {
  background: #fff;
  padding: 15px 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: background 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--secondary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo:hover {
  text-decoration: none;
  color: var(--secondary-color);
}

.logo i {
  color: var(--primary-color);
}

nav {
  display: flex;
  gap: 30px;
}

nav a {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--highlight-color);
  text-decoration: none;
}

.main-visual {
  height: 70vh;
  background: radial-gradient(circle at 50% 0%, rgba(255, 232, 18, 0.14) 0%, transparent 55%),
    linear-gradient(135deg, #3c1e1e 0%, #241110 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 60px 20px;
  margin-top: 0;
}

.main-visual .content {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
}

.main-visual h1 {
  font-size: 42px;
  margin-bottom: 20px;
  line-height: 1.3;
  font-weight: 700;
}

.main-visual p {
  font-size: 18px;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.btn-hero-cta {
  margin-top: 36px;
  padding: 20px 40px;
  font-size: 19px;
  max-width: 360px;
  box-shadow: 0 10px 28px rgba(255, 232, 18, 0.35);
}

.btn-hero-cta:hover {
  box-shadow: 0 14px 32px rgba(255, 232, 18, 0.5);
}

.stats-section {
  padding: 100px 0;
  background: #f8f9fa;
}

.stats-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  padding: 0 20px;
}

.stat-item {
  text-align: center;
  padding: 30px;
  background: white;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-item .number {
  font-size: 36px;
  font-weight: bold;
  color: var(--highlight-color);
  margin-bottom: 10px;
}

.services {
  padding: 100px 0;
  background: #fff;
  position: relative;
}

.service-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  padding: 0 20px;
}

.service-item {
  padding: 40px;
  background: #f8f9fa;
  border-radius: 15px;
  text-align: center;
  transition: transform 0.3s ease;
}

.service-item:hover {
  transform: translateY(-5px);
}

.service-item i {
  font-size: 48px;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.service-item h3 {
  margin-bottom: 15px;
  color: var(--secondary-color);
  font-weight: 700;
}

.process-section {
  padding: 100px 0;
  background: #f8f9fa;
}

.process-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.process-title {
  text-align: center;
  margin-bottom: 50px;
}

.process-title h2 {
  color: var(--secondary-color);
  font-weight: 700;
  font-size: 36px;
  margin-bottom: 20px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.process-step {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  position: relative;
  transition: transform 0.3s ease;
}

.process-step:hover {
  transform: translateY(-5px);
}

.step-number {
  position: absolute;
  top: -20px;
  left: 30px;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--secondary-color);
}

.process-step h3 {
  margin: 20px 0 15px;
  color: var(--secondary-color);
  font-weight: 700;
}

.contact {
  padding: 100px 0;
  background: #fff;
}

.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}

.contact-inner h2 {
  margin-bottom: 15px;
  color: var(--secondary-color);
  font-weight: 700;
  font-size: 36px;
}

.contact-inner .desc {
  color: #777;
  margin-bottom: 34px;
  font-size: 17px;
}

.btn-kakao {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 400px;
  padding: 17px 28px;
  background: var(--primary-color);
  color: var(--secondary-color);
  font-size: 18px;
  font-weight: 700;
  border-radius: 10px;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.3s ease;
}

.btn-kakao:hover {
  transform: translateY(-3px);
  background-color: #ffd700;
  color: var(--secondary-color);
  text-decoration: none;
}

.btn-kakao i {
  font-size: 21px;
}

.contact-sub {
  margin-top: 24px;
  font-size: 15px;
  color: #666;
  line-height: 2;
}

.contact-sub .kakao-id {
  font-weight: 700;
  color: var(--secondary-color);
}

.copy-id {
  margin-left: 6px;
  padding: 3px 10px;
  font-size: 13px;
  border: 1px solid #ddd;
  border-radius: 6px;
  background: #fff;
  color: #555;
  cursor: pointer;
  font-family: inherit;
  transition: background-color 0.2s ease;
}

.copy-id:hover {
  background-color: #f1f1f1;
}

.contact-sub a {
  color: var(--highlight-color);
  text-decoration: none;
}

.contact-sub a:hover {
  text-decoration: underline;
}

footer {
  background: var(--secondary-color);
  color: #fff;
  padding: 40px 20px;
  text-align: center;
}

footer p {
  margin: 8px 0;
  opacity: 0.9;
  font-size: 15px;
}

footer a {
  color: #fff;
}

.kakao-channel-button {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  transition: transform 0.3s ease;
  text-decoration: none;
}

.kakao-channel-button i {
  font-size: 28px;
  color: var(--secondary-color);
}

.kakao-channel-button:hover {
  transform: translateY(-5px);
  text-decoration: none;
}

@media screen and (max-width: 1024px) {
  .stats-container,
  .service-grid,
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    gap: 15px;
  }

  nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
  }

  .main-visual {
    height: 60vh;
    padding: 40px 20px;
  }

  .main-visual h1 {
    font-size: 32px;
  }

  .main-visual p {
    font-size: 16px;
  }

  .btn-hero-cta {
    margin-top: 28px;
    padding: 17px 28px;
    font-size: 17px;
  }

  .service-grid,
  .process-steps {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 480px) {
  .stats-container {
    grid-template-columns: 1fr;
  }

  .main-visual h1 {
    font-size: 28px;
  }

  .kakao-channel-button {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
  }

  .kakao-channel-button i {
    font-size: 24px;
  }
}