/**
 * common.css - Global Stylesheet for Clinic Website
 * Theme: Clean Minimalism (Spacious layouts, refined emerald accents, crisp cards)
 */

/* ==========================================================================
   1. CSS Reset & Base Typography
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body, 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
  font-size: 1rem;
  font-weight: 400;
  color: var(--default-text, #303030);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ==========================================================================
   2. Semantic Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  color: var(--color-text-heading);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: 28px;
  letter-spacing: -0.025em;
  font-weight: 700;
}

/* Site-Wide Subpage Title (H1 right after banner, aligned left) */
.site-subpage-title {
  position: relative;
  z-index: 10;
  display: block;
  width: 100%;
  max-width: 1200px;
  margin: -5rem auto 0 auto;
  padding: 0 1.5rem 0.75rem 2.5rem;
  text-align: left;
  font-family: var(--font-serif, "Gowun Batang", "AppleMyungjo", "Batang", serif);
  font-size: clamp(1.35rem, 3.5vw, 2.625rem);
  font-weight: 700;
  color: var(--color-heading-darkest, #4B3937);
  letter-spacing: -0.01em;
  line-height: 1.25;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
  pointer-events: none;
}

@media (max-width: 860px) {
  .site-subpage-title {
    margin: -3.5rem auto 0 auto;
    padding: 0 1.25rem 0.5rem 1.5rem;
    font-size: 1.65rem;
    text-align: left;
  }
}

@media (max-width: 576px) {
  .site-subpage-title {
    margin: -2.35rem auto 0 auto;
    padding: 0 0.85rem 0.4rem 0.85rem;
    font-size: 1.3rem;
    text-align: left;
  }
}

h2 {
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h3 {
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -0.015em;
}

* + h3 {
  margin-top: 1.25rem;
}

h4 {
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  font-size: 19px;
  font-weight: 500;
}

h5 {
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  font-size: 18px;
  font-weight: 500;
}

h6 {
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  font-size: 17px;
  font-weight: 400;
}

p {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: var(--default-text, #303030);
  line-height: 1.7;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover, a:focus-visible {
  color: var(--color-primary);
}

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

figure {
  margin: 0;
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   3. Container & Main Layout Constraints (Max-width 1200px)
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 0.85rem;
  padding-right: 0.85rem;
}

@media (min-width: 768px) {
  .container {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }
}

main.main-content {
  flex: 1 0 auto;
  width: 100%;
  padding-top: 3.5rem;
  padding-bottom: 1.5rem;
  background-image: url('/site-img/background_content-01.jpg');
  background-position: 50% 0;
  background-size: cover;
}

@media (max-width: 768px) {
  main.main-content {
    padding-top: 2.25rem;
    padding-bottom: 3.5rem;
  }
}

/* ==========================================================================
   4. Common UI Components & Utilities
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.7rem 1.4rem;
  border-radius: 10px;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 44px; /* Mobile touch target standard */
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(6, 95, 70, 0.2);
}

.btn-outline {
  background-color: #ffffff;
  color: var(--default-text, #303030);
  border: 1px solid var(--color-border-medium);
}

.btn-outline:hover {
  background-color: var(--color-bg-alt);
  border-color: var(--color-border-dark);
  color: var(--color-text-heading);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

/* Accessible Screen Reader Only / Visually Hidden (SEO preserved) */
.sr-only,
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border-width: 0 !important;
}

/* Accessible Skip to Content Link (visible when focused by keyboard) */
.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  z-index: 99999;
  padding: 0.75rem 1.25rem;
  background-color: var(--accent-1, #35696F);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 0 0 6px 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: top 0.15s ease-in-out;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--accent-2, #1b9292);
  outline-offset: 2px;
}

/* ==========================================================================
   Universal Site Listbox (.site-listbox)
   ========================================================================== */
.site-listbox {
  background-color: var(--translucent-1, rgba(232, 227, 223, 0.3));
  margin: 0 auto 1.5rem auto;
  width: fit-content;
  max-width: 100%;
  padding: 20px 30px 20px 40px;
  border-radius: 10px;
  list-style: disc;
  border: 0;
  font-size: 1rem;
  font-family: var(--font-body, 'Noto Sans KR', sans-serif);
  font-weight: 400;
  line-height: 1.6;
  color: var(--default-text, #303030);
  box-sizing: border-box;
  display: block;
}

.site-listbox li {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  margin: 0 0 0.5rem 0;
  list-style-type: disc;
  font-size: inherit;
  line-height: 1.6;
  color: inherit;
  display: list-item;
}

.site-listbox li:last-child {
  margin-bottom: 0;
}

.site-listbox li em { 
  font-style: normal;
  font-weight: 500;
  color: var(--accent-2, #1b9292);
  display: inline;
  margin-bottom: 0;
}

/* ==========================================================================
   Universal Site List (.site-list)
   ========================================================================== */
.site-list {
  list-style-type: '◦ ';
  padding-left: 1.25rem;
  margin: 0.5rem 0 0.85rem 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--default-text, #303030);
  box-sizing: border-box;
}

.site-list li {
  margin-bottom: 0.35rem;
  padding-left: 0.25rem;
}

.site-list li:last-child {
  margin-bottom: 0;
}

/* Bullet styling: clean '◦' glyph matching heading tone */
.site-list li::marker {
  color: var(--color-text-heading);
  font-size: 1.05em;
}

/* Consistent styling for emphasized labels inside list items (e.g. <em>Email</em>:) */
.site-list li em {
  font-style: normal;
  font-weight: 600;
  color: var(--color-text-heading);
}

.site-list a {
  color: var(--default-text, #303030);
  text-decoration: underline;
}

.site-list a:hover {
  color: var(--accent-1, #35696F);
}

.site-callout-box {
  background-color: var(--translucent-1);
  border: 2px solid var(--accent-2);
  padding: 5px 20px;
  border-radius: 10px;
  margin: 0.85rem 0;
  line-height: 1.6;
  color: var(--default-text, #303030);
  font-size: 1rem;
}

/* ==========================================================================
   Universal Table Design (.site-table)
   ========================================================================== */
.site-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  border-spacing: 2px;
  border: 0;
  margin: 0.5rem 0 1rem 0;
  font-family: var(--font-body, 'Noto Sans KR', sans-serif);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--default-text, #303030);
  box-sizing: border-box;
}

.site-table th,
.site-table td {
  border: 0;
  padding: 0.35em 0.6em;
  text-align: center;
  font-weight: 400;
}

.site-table thead tr {
  background-color: var(--accent-1, #35696F);
  color: #ffffff;
  font-weight: 600;
}

.site-table tbody tr:nth-child(odd) {
  background-color: var(--table-row-odd, #DCE0E4);
}

.site-table tbody tr:nth-child(even) {
  background-color: var(--table-row-even, #F0F2F4);
}

/* Optional text-alignment modifiers */
.site-table.align-left th,
.site-table.align-left td {
  text-align: left;
}

.site-table.align-right th,
.site-table.align-right td {
  text-align: right;
}

@media (max-width: 480px) {
  .site-table {
    font-size: 15px;
  }
}

@media (max-width: 768px) {
  .site-listbox {
    padding: 15px 20px 15px 35px;
    margin: 0 auto 1.25rem auto;
    font-size: 15px;
  }

  .site-callout-box {
    padding: 6px 14px;
    margin: 0.65rem 0;
  }

  .site-table td,
  .site-table th {
    padding: 0.5rem 0.35rem;
  }
}

/* ==========================================================================
   Universal Accent Box (.site-accent-box-1)
   ========================================================================== */
.site-accent-box-1 {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  color: #ffffff !important;
  background-color: var(--accent-1, #35696F);
  background-image: url("/site-img/wave-pattern_oblique_1200.png");
  background-size: 400px 80px;
  margin: 2px auto !important;
  padding: 12px 40px 15px 40px;
  font-size: 1.25rem !important;
  font-family: var(--font-heading, 'Noto Sans KR', sans-serif);
  font-weight: 500;
  line-height: 1.4;
  border: none;
  clip-path: polygon(0 10px, 10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

@media (max-width: 480px) {
  .site-accent-box-1 {
    font-size: 18px;
    padding: 10px 20px 12px 20px;
  }
}

/* ==========================================================================
   Universal Image Caption (.site-image-caption)
   ========================================================================== */
.site-image-caption,
figcaption.site-image-caption {
  display: block;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-muted, #6b7280);
  text-align: center;
  margin-top: 0.65rem;
  margin-bottom: 0;
  font-weight: 400;
  letter-spacing: -0.1px;
}

.site-image-caption.text-left {
  text-align: left;
}

.site-image-caption.text-right {
  text-align: right;
}