/*
Theme Name: Okuyama Seikei
Theme URI: https://okuyama-seikei.medical-clinic.or.jp/
Author: Okuyama Seikei
Description: 奥山整形外科 駒込本院 オリジナルテーマ
Version: 1.0.0
Text Domain: okuyama-seikei
*/

/* ============================================
   Design Tokens / CSS Custom Properties
   ============================================ */
:root {
  /* === Colors === */
  --color-primary: #2da878;
  --color-primary-dark: #248f66;
  --color-primary-light: #e8f5ee;
  --color-primary-pale: #f0faf5;
  --color-accent: #f0c040;
  --color-accent-light: #fff8e0;
  --color-white: #ffffff;
  --color-black: #3A1E08;
  --color-text: #3A1E08;
  --color-text-light: #3A1E08;
  --color-text-muted: #3A1E08;
  --color-gray-light: #f5f5f5;
  --color-gray: #e0e0e0;
  --color-gray-dark: #cccccc;
  --color-border: #e0e0e0;
  --color-bg-cream: #faf8f2;
  --color-bg-green-stripe: repeating-linear-gradient(
    -45deg,
    var(--color-primary-pale),
    var(--color-primary-pale) 10px,
    #e0f2e9 10px,
    #e0f2e9 20px
  );
  --color-yellow-stripe: repeating-linear-gradient(
    -45deg,
    #fdf6e3,
    #fdf6e3 10px,
    #f9edd0 10px,
    #f9edd0 20px
  );

  /* === Typography === */
  --font-primary: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans",
    "Meiryo", sans-serif;
  --font-english: "Poppins", "Noto Sans JP", sans-serif;

  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.8125rem; /* 13px */
  --font-size-base: 0.9375rem; /* 15px */
  --font-size-md: 1rem; /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem; /* 20px */
  --font-size-2xl: 1.5rem; /* 24px */
  --font-size-3xl: 2rem; /* 32px */
  --font-size-4xl: 2.6875rem; /* 43px */
  --font-size-5xl: 3.875rem; /* 62px */
  --font-size-hero: 4.8125rem; /* 77px */

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --font-weight-black: 900;

  --line-height-tight: 1.3;
  --line-height-base: 1.6;
  --line-height-loose: 1.8;
  --line-height-relaxed: 2.0;

  /* === Spacing === */
  --spacing-xs: 0.5rem; /* 8px */
  --spacing-sm: 1rem; /* 16px */
  --spacing-md: 1.5rem; /* 24px */
  --spacing-lg: 2rem; /* 32px */
  --spacing-xl: 3rem; /* 48px */
  --spacing-2xl: 4rem; /* 64px */
  --spacing-3xl: 5rem; /* 80px */
  --spacing-4xl: 6rem; /* 96px */

  /* === Layout === */
  --container-max: 1440px;
  --content-max: 1240px;
  --content-padding: 100px;

  /* === Border Radius === */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* === Shadows === */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* === Transitions === */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* === Z-Index === */
  --z-header: 1000;
  --z-nav: 900;
  --z-overlay: 800;
  --z-modal: 1100;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-white);
  overflow-x: hidden;
  max-width: 100vw;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.8;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 100px;
}

.container--wide {
  max-width: var(--container-max);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section__heading {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section__title-ja {
  font-size: 52px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  display: block;
}

.section__title-en {
  font-family: var(--font-english);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-top: var(--spacing-xs);
}

/* Common section title */
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.14em;
  text-align: center;
}

/* ============================================
   Button Components
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 0.75em 2em;
  border-radius: var(--radius-full);
  font-size: var(--font-size-md);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  opacity: 1;
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: 0.75em 2em;
  border-radius: var(--radius-full);
  font-size: var(--font-size-md);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  opacity: 1;
}

.btn--cta {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 1em 2.5em;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.btn--phone {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 0.5em 1.5em;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.btn--line {
  background-color: #06c755;
  color: var(--color-white);
  padding: 0.5em 1.5em;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.btn--arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.btn--arrow::after {
  content: "";
  display: inline-block;
  width: 28px;
  height: 28px;
  background-color: var(--color-primary);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 16px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.btn--arrow:hover::after {
  transform: translateX(3px);
}

/* ============================================
   Card Components
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.card__body {
  padding: var(--spacing-md);
}

.card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.card__text {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-loose);
}

/* ============================================
   Badge Components
   ============================================ */
.badge-circle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-weight: var(--font-weight-bold);
}

.badge-circle__sub {
  font-size: var(--font-size-sm);
  line-height: 1.2;
}

.badge-circle__main {
  font-size: var(--font-size-2xl);
  line-height: 1.2;
}

.sp-only {
  display: none;
}

.pc-only {
  display: inline;
}