/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
  /* Colors */
  --color-background: #f7f5f2;
  --color-foreground: #3d3a35;
  --color-card: #fcfbfa;
  --color-card-foreground: #3d3a35;
  --color-primary: #4a7c59;
  --color-primary-foreground: #faf9f7;
  --color-secondary: #f0ece6;
  --color-secondary-foreground: #5a554c;
  --color-muted: #e8e4dd;
  --color-muted-foreground: #7a756c;
  --color-accent: #5d9a6f;
  --color-accent-foreground: #faf9f7;
  --color-border: #ddd8cf;
  --color-input: #e8e4dd;

  /* Typography */
  --font-sans: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Noto Serif KR", Georgia, serif;

  /* Spacing & Sizing */
  --radius: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --container-max: 72rem;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

/* ===================================
   Utilities
   =================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-primary {
  color: var(--color-primary);
}

.section-badge {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: 1.5rem;
}

.section-description {
  color: var(--color-muted-foreground);
  line-height: 1.7;
  max-width: 40rem;
}

/* ===================================
   Buttons
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background-color: #3d6a4a;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-foreground);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  background-color: var(--color-secondary);
}

/* ===================================
   Header
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(247, 245, 242, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  color: rgba(61, 58, 53, 0.8);
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--color-primary);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
}

.mobile-menu-btn:hover {
  background-color: var(--color-secondary);
}

.hamburger {
  position: relative;
  width: 1.25rem;
  height: 2px;
  background-color: var(--color-foreground);
  transition: all 0.3s;
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-foreground);
  transition: all 0.3s;
}

.hamburger::before {
  top: -6px;
}

.hamburger::after {
  bottom: -6px;
}

.mobile-menu-btn.active .hamburger {
  background-color: transparent;
}

.mobile-menu-btn.active .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-btn.active .hamburger::after {
  bottom: 0;
  transform: rotate(-45deg);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 1rem 1.5rem 1.5rem;
  max-width: var(--container-max);
  margin: 0 auto;
}

.nav-mobile.active {
  display: flex;
}

.nav-link-mobile {
  padding: 0.75rem 0;
  font-size: 0.875rem;
  color: rgba(61, 58, 53, 0.8);
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s;
}

.nav-link-mobile:last-child {
  border-bottom: none;
}

.nav-link-mobile:hover {
  color: var(--color-primary);
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }

  .mobile-menu-btn {
    display: none;
  }
}

/* ===================================
   Hero Section
   =================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    to bottom,
    var(--color-background) 0%,
    rgba(247, 245, 242, 0.95) 50%,
    var(--color-background) 100%
  );
}

.hero-content {
  text-align: center;
  padding: 5rem 1.5rem;
  max-width: 48rem;
  margin: 0 auto;
}

.hero-badge {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 600;
  color: var(--color-foreground);
  line-height: 1.3;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-muted-foreground);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-muted-foreground);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

/* ===================================
   About Section
   =================================== */
.about-section {
  padding: 6rem 0;
  background-color: rgba(240, 236, 230, 0.5);
}

.about-section .section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.about-section .section-description {
  margin: 0 auto;
}

.features-grid {
  display: grid;
  gap: 2rem;
}

.feature-card {
  background-color: var(--color-card);
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.3s;
}

.feature-card:hover {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  background-color: rgba(74, 124, 89, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: 0.75rem;
}

.feature-description {
  color: var(--color-muted-foreground);
  line-height: 1.7;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===================================
   Services Section
   =================================== */
.services-section {
  padding: 6rem 0;
}

.services-grid {
  display: grid;
  gap: 4rem;
  align-items: center;
}

.services-intro .section-description {
  margin-bottom: 2rem;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  text-align: left;
  font-weight: 500;
  color: var(--color-foreground);
  transition: background-color 0.2s;
}

.accordion-trigger:hover {
  background-color: rgba(240, 236, 230, 0.5);
}

.accordion-icon {
  color: var(--color-muted-foreground);
  transition: transform 0.3s;
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 0 1.25rem 1.25rem;
}

.accordion-content p {
  color: var(--color-muted-foreground);
  line-height: 1.7;
}

.accordion-content a {
  color: var(--color-primary);
}

.accordion-content a:hover {
  text-decoration: underline;
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===================================
   Profile Section
   =================================== */
.profile-section {
  padding: 6rem 0;
  background-color: rgba(240, 236, 230, 0.5);
}

.profile-grid {
  display: grid;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 768px) {
  .profile-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.profile-info {
  order: 2;
}

@media (min-width: 768px) {
  .profile-info {
    order: 1;
  }
}

.profile-subtitle {
  font-size: 1.125rem;
  color: var(--color-muted-foreground);
  margin-bottom: 2rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-icon {
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(74, 124, 89, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.contact-item a {
  color: var(--color-foreground);
  transition: color 0.2s;
}

.contact-item a:hover {
  color: var(--color-primary);
}

.profile-bio {
  color: var(--color-muted-foreground);
  line-height: 1.7;
}

.profile-image-wrapper {
  order: 1;
  position: relative;
  display: flex;
  justify-content: center;
}

@media (min-width: 768px) {
  .profile-image-wrapper {
    order: 2;
  }
}

.profile-image {
  width: 16rem;
  height: 28rem;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* 전신 사진에 맞게 object-position을 top으로 변경 */
.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.profile-decoration-1 {
  position: absolute;
  bottom: -1rem;
  right: calc(50% - 10rem);
  width: 6rem;
  height: 6rem;
  background-color: rgba(74, 124, 89, 0.1);
  border-radius: var(--radius-xl);
  z-index: -1;
}

.profile-decoration-2 {
  position: absolute;
  top: -1rem;
  left: calc(50% - 10rem);
  width: 4rem;
  height: 4rem;
  background-color: rgba(93, 154, 111, 0.2);
  border-radius: var(--radius-lg);
  z-index: -1;
}

@media (min-width: 768px) {
  .profile-image {
    width: 18rem;
    height: 32rem;
  }
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
  padding: 6rem 0;
}

.contact-wrapper {
  max-width: 40rem;
  margin: 0 auto;
  text-align: center;
}

.contact-wrapper .section-description {
  margin: 0 auto 3rem;
}

.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.alert-success {
  background-color: rgba(74, 124, 89, 0.1);
  border: 1px solid rgba(74, 124, 89, 0.3);
  color: var(--color-primary);
}

.alert-error {
  background-color: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: #dc2626;
}

.alert ul {
  margin: 0;
  padding-left: 1.25rem;
  list-style: disc;
}

.alert li {
  margin: 0.25rem 0;
}

.contact-form {
  text-align: left;
}

.form-row {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

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

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-foreground);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-foreground);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 124, 89, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-muted-foreground);
}

.form-group textarea {
  resize: none;
}

.btn-submit {
  margin-top: 0.5rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .btn-submit {
    width: auto;
    padding-left: 3rem;
    padding-right: 3rem;
  }
}

/* ===================================
   Footer
   =================================== */
.footer {
  background-color: var(--color-foreground);
  color: var(--color-background);
  padding: 4rem 0;
}

.footer-grid {
  display: grid;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.875rem;
  color: rgba(247, 245, 242, 0.7);
  line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
  font-weight: 500;
  margin-bottom: 1rem;
}

.footer-links ul,
.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links li,
.footer-contact li {
  font-size: 0.875rem;
  color: rgba(247, 245, 242, 0.7);
}

.footer-links a,
.footer-contact a {
  transition: color 0.2s;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--color-background);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(247, 245, 242, 0.2);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: rgba(247, 245, 242, 0.5);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}