/* ========================================
   Design Tokens — 季邦会 Recruitment
   Minimal, clean Japanese medical palette
======================================== */

:root {
  /* Core palette */
  --primary-green: #2f7d57;
  --primary-green-light: #7fb99a;
  --white: #ffffff;
  --light-gray: #f5f7f6;
  --dark-gray: #1f2522;
  --black: #000000;

  /* Semantic aliases (used across existing CSS) */
  --primary: var(--primary-green);
  --primary-dark: #245f43;
  --primary-light: #e6f1eb;
  --primary-50: #f2f7f4;
  --primary-rgb: 47, 125, 87;

  --text: #111111;
  --text-muted: #4a4f4d;
  --text-light: #6b7470;

  --bg: var(--white);
  --bg-alt: var(--light-gray);
  --bg-dark: var(--dark-gray);
  --bg-warm: #f8f9f8;

  --line-brand: var(--primary);
  --line-brand-rgb: var(--primary-rgb);
  --line-brand-hover: var(--primary-dark);
  --accent-rgb: var(--primary-rgb);

  /* Button + overlay */
  --button-bg: var(--white);
  --button-border: var(--primary);
  --button-text: var(--primary);
  --button-hover-bg: var(--primary);
  --button-hover-text: var(--white);
  --overlay-dark: rgba(0, 0, 0, 0.5);

  /* Border */
  --border: #d8dfdc;
  --border-light: #e8eeeb;

  /* Typography */
  --font-heading: "Noto Serif JP", "Georgia", serif;
  --font-body: "Noto Sans JP", "Helvetica Neue", "Arial", sans-serif;
  --font-en: "Inter", "Helvetica Neue", sans-serif;

  --fw-normal: 400;
  --fw-medium: 500;
  --fw-bold: 700;

  --fs-hero: clamp(2.2rem, 5.5vw, 3.6rem);
  --fs-h1: clamp(1.8rem, 3.5vw, 2.5rem);
  --fs-h2: clamp(1.4rem, 2.5vw, 1.9rem);
  --fs-h3: clamp(1.1rem, 2vw, 1.35rem);
  --fs-h4: 1.1rem;
  --fs-body: clamp(0.95rem, 1.2vw, 1.05rem);
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;

  --lh-heading: 1.5;
  --lh-body: 1.85;
  --ls-heading: 0.04em;

  /* Spacing (8px grid) */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 72px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 100px;
  --border-radius: var(--radius-sm);
  --border-radius-sm: var(--radius-sm);
  --border-radius-lg: var(--radius-lg);

  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-normal: 0.45s ease;
  --transition-slow: 0.7s ease;
  --transition-base: 0.35s ease;
  --transition-spring: 0.45s ease;

  /* Shadows (soft) */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 6px 18px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 10px 24px rgba(0, 0, 0, 0.1);
  --shadow-primary: 0 0 8px rgba(var(--primary-rgb), 0.12);
  --shadow-accent: 0 0 8px rgba(var(--primary-rgb), 0.12);

  /* Keep old gradient tokens but simplify them */
  --gradient-primary: linear-gradient(180deg, var(--primary) 0%, var(--primary-green-light) 100%);
  --gradient-dark: linear-gradient(180deg, #2a2f2d 0%, #1f2522 100%);
  --gradient-hero: linear-gradient(180deg, #f8fbf9 0%, #eef4f1 100%);
  --gradient-hero-mesh: linear-gradient(180deg, rgba(var(--primary-rgb), 0.04) 0%, rgba(var(--primary-rgb), 0.02) 100%);
  --gradient-glass: linear-gradient(180deg, rgba(255, 255, 255, 0.88) 0%, rgba(255, 255, 255, 0.95) 100%);
  --gradient-cta: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
}