@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root {
  --primary: #0F766E;
  --primary-hover: #0D5C56;
  --secondary: #0284C7;
  --dark: #1E293B;
  --light: #F8FAFC;
  --white: #FFFFFF;
  --gray: #64748B;
  --border: #E2E8F0;
  --font: 'Noto Sans KR', sans-serif;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font);
  background-color: var(--light);
  color: var(--dark);
}

body {
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  height: 45px;
}

.logo img {
  height: 100%;
  width: auto;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav ul li a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--dark);
  transition: var(--transition);
}

nav ul li a:hover {
  color: var(--primary);
}

.header-btn {
  background: var(--primary);
  color: var(--white);
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 500;
  transition: var(--transition);
}

.header-btn:hover {
  background: var(--primary-hover);
}

/* Hero Section */
.hero {
  padding: 10rem 2rem 6rem;
  background: radial-gradient(circle at top right, rgba(15, 118, 110, 0.05), transparent), var(--white);
  border-bottom: 1px solid var(--border);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--dark);
  margin-bottom: 1.5rem;
}

.hero-content h1 span {
  color: var(--primary);
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--gray);
  margin-bottom: 2.5rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  padding: 1rem 2rem;
  border-radius: 6px;
  font-size: 1.05rem;
  font-weight: 500;
  box-shadow: 0 4px 6px -1px rgba(15, 118, 110, 0.2);
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.hero-image {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.05);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Trust Strip */
.trust-strip {
  max-width: 1200px;
  margin: 4rem auto 0;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  text-align: center;
}

.trust-strip p {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Value Proposition */
.value-prop {
  padding: 6rem 2rem;
  background: var(--white);
}

.section-title {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-title h2 {
  font-size: 2.25rem;
  color: var(--dark);
  margin-bottom: 1rem;
}

.section-title p {
  color: var(--gray);
}

.value-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
}

.value-card {
  padding: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: var(--transition);
  background: var(--light);
}

.value-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.03);
  border-color: var(--primary);
}

.value-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 118, 110, 0.1);
  border-radius: 8px;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--dark);
}

.value-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* How It Works */
.how-it-works {
  padding: 6rem 2rem;
  background: var(--light);
}

.steps-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  align-items: start;
  gap: 2rem;
}

.step-num {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--white);
  border: 2px solid var(--border);
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.step-text h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.step-text p {
  color: var(--gray);
  font-size: 1rem;
}

/* Services */
.services-section {
  padding: 6rem 2rem;
  background: var(--white);
}

.services-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.services-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.services-img-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.services-img-col img {
  border-radius: 8px;
  width: 100%;
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.service-item {
  display: flex;
  gap: 1.5rem;
}

.service-item svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.service-item h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.service-item p {
  color: var(--gray);
}

/* Testimonials */
.testimonials {
  padding: 6rem 2rem;
  background: var(--light);
}

.test-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.test-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
}

.stars {
  color: #FBBF24;
  margin-bottom: 1rem;
}

.test-card p {
  font-size: 0.95rem;
  color: var(--dark);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.user-info {
  font-weight: 500;
  font-size: 0.9rem;
}

.user-info span {
  display: block;
  color: var(--gray);
  font-size: 0.8rem;
  font-weight: 400;
}

/* FAQ */
.faq {
  padding: 6rem 2rem;
  background: var(--white);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--dark);
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--gray);
  margin-top: 0rem;
  font-size: 0.95rem;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  margin-top: 1rem;
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Form Section */
.form-section {
  padding: 6rem 2rem;
  background: var(--light);
}

.form-container {
  max-width: 650px;
  margin: 0 auto;
  background: var(--white);
  padding: 3rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.03);
}

.form-intro {
  text-align: center;
  margin-bottom: 2.5rem;
}

.form-intro h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.form-intro p {
  color: var(--gray);
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark);
}

.form-group input {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: var(--font);
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

.phone-wrapper {
  display: flex;
  gap: 0.5rem;
}

.phone-prefix {
  background: var(--light);
  border: 1px solid var(--border);
  padding: 0.75rem;
  border-radius: 6px;
  font-weight: 500;
  display: flex;
  align-items: center;
}

.phone-wrapper input {
  flex-grow: 1;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.checkbox-group input {
  margin-top: 0.25rem;
}

.checkbox-group label {
  font-size: 0.85rem;
  color: var(--gray);
}

.checkbox-group label a {
  color: var(--primary);
  text-decoration: underline;
}

.submit-btn {
  background: var(--primary);
  color: var(--white);
  padding: 1rem;
  border: none;
  border-radius: 6px;
  font-size: 1.1rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.submit-btn:hover {
  background: var(--primary-hover);
}

/* Success / Error Messages */
.form-success, .form-error {
  display: none;
  padding: 1.5rem;
  border-radius: 6px;
  text-align: center;
  font-weight: 500;
  margin-top: 1.5rem;
}

.form-success {
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #BBF7D0;
}

.form-error {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

/* About / Operator Section */
.about-section {
  padding: 6rem 2rem;
  background: var(--white);
  border-top: 1px solid var(--border);
}

.about-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.about-img img {
  width: 100%;
  border-radius: 12px;
}

.about-text h2 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

/* Footer */
footer {
  background: var(--dark);
  color: #94A3B8;
  padding: 4rem 2rem 2rem;
  font-size: 0.9rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  border-bottom: 1px solid #334155;
  padding-bottom: 3rem;
  margin-bottom: 2rem;
}

.footer-brand h4 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.footer-links h5 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links ul li a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.back-to-top {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  color: var(--white);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
  max-width: 600px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  z-index: 2000;
  display: none;
}

.cookie-content h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.cookie-content p {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 1.5rem;
}

.cookie-buttons {
  display: flex;
  gap: 1rem;
}

.cookie-btn-accept {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
}

.cookie-btn-decline {
  background: var(--light);
  color: var(--dark);
  border: 1px solid var(--border);
  padding: 0.5rem 1.5rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-container, .services-grid, .about-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-image {
    max-width: 700px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  nav {
    display: none;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 2.25rem;
  }
}