/*
Theme Name: Reforma Academy
Theme URI: https://reforma-academy.com/
Author: Reforma
Author URI: https://reforma-academy.com/
Description: Reforma Academy 公式テーマ。媒体（ブログ）として craft された自作クラシックテーマ。
Version: 0.1.0
License: Proprietary
Text Domain: reforma
*/

@layer reset, tokens, base, components, utilities;

/* ============================================================
   RESET
   ============================================================ */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; padding: 0; }
  html { -webkit-text-size-adjust: 100%; }
  body { min-height: 100vh; }
  img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
  input, button, textarea, select { font: inherit; }
  p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }
  button { background: none; border: none; cursor: pointer; color: inherit; }
  a { color: inherit; }
  ul, ol { list-style: none; }
}

/* ============================================================
   TOKENS — Brand-aligned (v3.2 editorial) + multi-palette

   COLORS: default = Reforma brand (Deep Navy + Golden Amber)
   Source: assets/ブランド抜粋.md §3 (v1.3)
   Alternatives via [data-palette="ocean"|"sunset"|"plum"|"honey"]

   FONTS: --font-serif / --font-display / --font-body / --font-num
   - --font-serif   : Cormorant Garamond + Noto Serif JP (H1, monogram, editorial italic)
   - --font-display : Montserrat + Noto Sans JP (H2/H3, labels, buttons, UI)
   - --font-body    : Inter + Noto Sans JP (body, descriptions, meta)
   - --font-num     : Oswald (numeric impact)
   ============================================================ */
@layer tokens {
  /* ========== DEFAULT: Reforma Brand (ディープネイビー × ゴールデンアンバー) ========== */
  :root {
    /* Base colors — assets/ブランド抜粋.md §3 */
    --color-primary:        #1A2B4C;            /* Deep Navy */
    --color-primary-hover:  #12203E;
    --color-secondary:      #F8F8F5;            /* Off-White */
    --color-accent-1:       #C8102E;            /* Alert Red — use ≤5% */
    --color-accent-2:       #E8A020;            /* Golden Amber — primary CTA */
    --color-accent-2-end:   #D48F18;
    --color-accent-2-hover: #C67F10;
    --color-accent-2-end-hover: #B06F0E;
    --color-sub-1:          #4A90A4;            /* Steel Blue — Training (柱2) */
    --color-sub-2:          #4A7C59;            /* Sage Green — Nutrition (柱1) */
    --color-sub-3:          #1A2B4C;            /* Deep Navy — Knowledge (柱3) */
    --color-gray-dark:      #2C2C2C;
    --color-gray-light:     #E0E0E0;
    --color-bg-alt:         #F4F2EC;            /* Off-white tint */
    --color-highlight:      #FDF4DC;            /* Pale amber highlight */

    /* Mesh (atmospheric only — very pale navy/amber/sage on off-white) */
    --mesh-1: #E0E4EC;                          /* pale navy-gray */
    --mesh-2: #F5E5C8;                          /* pale amber */
    --mesh-3: #E5EBE3;                          /* pale sage */
    --mesh-4: #F0F0EB;                          /* pale cream */

    /* CTA — solid amber (editorial restraint; no gradient) */
    --gradient-primary:       var(--color-accent-2);
    --gradient-primary-hover: var(--color-accent-2-hover);
    --gradient-h1:            var(--color-primary);
    --gradient-monogram:      var(--color-secondary);

    /* Glass — softer, navy-tinted */
    --glass-bg:     rgba(248, 248, 245, 0.6);
    --glass-border: 1px solid rgba(232, 160, 32, 0.28);
    --glass-blur:   blur(18px);
    --glass-shadow: 0 20px 50px rgba(26, 43, 76, 0.15);

    /* Focus ring */
    --ring: 2px solid var(--color-accent-2);

    /* Noise texture (SVG data URI — monochrome so palette-agnostic) */
    --noise: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="300" height="300"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="2" seed="5"/><feColorMatrix values="0 0 0 0 0.1 0 0 0 0 0.1 0 0 0 0 0.1 0 0 0 0.35 0"/></filter><rect width="300" height="300" filter="url(%23n)"/></svg>');

    /* Fonts — Editorial Academy */
    --font-serif:   'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
    --font-display: 'Montserrat', 'Noto Sans JP', sans-serif;
    --font-body:    'Inter', 'Noto Sans JP', sans-serif;
    --font-num:     'Oswald', sans-serif;

    /* Spacing (8px base) — palette-agnostic */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 48px;
    --space-6: 64px;
    --space-7: 80px;
    --space-8: 120px;

    /* Widths / Radii / Shadows / Transitions / z-index — palette-agnostic */
    --width-content:   720px;
    --width-container: 1200px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --shadow-card:       0 2px 8px rgba(26, 26, 46, 0.06);
    --shadow-card-hover: 0 12px 32px color-mix(in srgb, var(--color-accent-2) 14%, transparent);
    --trans-fast: 0.15s ease;
    --trans-med:  0.25s cubic-bezier(.2,.7,.3,1);
    --trans-slow: 0.6s  cubic-bezier(.2,.7,.3,1);
    --z-header:     100;
    --z-sticky-cta: 90;
    --z-modal:      200;
  }

  /* ========== OCEAN / ARCTIC (青系) ========== */
  [data-palette="ocean"] {
    --color-primary:        #0A1F3D;
    --color-primary-hover:  #15325C;
    --color-secondary:      #F7FAFF;
    --color-accent-1:       #FF6B6B;
    --color-accent-2:       #2E5BFF;
    --color-accent-2-end:   #00C9E8;
    --color-accent-2-hover: #254BE0;
    --color-accent-2-end-hover: #00A8C4;
    --color-sub-1:          #5B8AFF;
    --color-sub-2:          #4DCCE8;
    --color-sub-3:          #8B6BE0;
    --color-gray-dark:      #1A2E4D;
    --color-gray-light:     #DCE4F0;
    --color-bg-alt:         #EEF3FA;
    --color-highlight:      #CCE0FF;
    --mesh-1: #B8D4FF;
    --mesh-2: #A8E4F5;
    --mesh-3: #B8F5E1;
    --mesh-4: #D4BFFA;
  }

  /* ========== SUNSET PEACH (暖色) ========== */
  [data-palette="sunset"] {
    --color-primary:        #2E1A1A;
    --color-primary-hover:  #4A2929;
    --color-secondary:      #FFF8F0;
    --color-accent-1:       #C33CB0;
    --color-accent-2:       #FF8A3D;
    --color-accent-2-end:   #FF4E8A;
    --color-accent-2-hover: #E87830;
    --color-accent-2-end-hover: #E83D78;
    --color-sub-1:          #FF6B9E;
    --color-sub-2:          #FF9E6D;
    --color-sub-3:          #E8A43D;
    --color-gray-dark:      #3D2929;
    --color-gray-light:     #EDDDD0;
    --color-bg-alt:         #FFF0E5;
    --color-highlight:      #FFE8C8;
    --mesh-1: #FFCFA8;
    --mesh-2: #FFB8C8;
    --mesh-3: #FFE2A8;
    --mesh-4: #F5B8E8;
  }

  /* ========== PLUM WINE (紫赤系) ========== */
  [data-palette="plum"] {
    --color-primary:        #2B1A2E;
    --color-primary-hover:  #422944;
    --color-secondary:      #FAF4F5;
    --color-accent-1:       #8B1A5A;
    --color-accent-2:       #C33CB0;
    --color-accent-2-end:   #8B1A5A;
    --color-accent-2-hover: #A32E95;
    --color-accent-2-end-hover: #70134A;
    --color-sub-1:          #6B3DB0;
    --color-sub-2:          #B03D7A;
    --color-sub-3:          #8B2D4D;
    --color-gray-dark:      #3D2E41;
    --color-gray-light:     #E8DCE2;
    --color-bg-alt:         #F5E8ED;
    --color-highlight:      #FFDCF0;
    --mesh-1: #E8A8D4;
    --mesh-2: #D4A8F5;
    --mesh-3: #F5B8B8;
    --mesh-4: #E8D4F5;
  }

  /* ========== HONEY GOLD (金系) ========== */
  [data-palette="honey"] {
    --color-primary:        #1A1A0F;
    --color-primary-hover:  #2E2A1A;
    --color-secondary:      #FFFDF3;
    --color-accent-1:       #C23C2A;
    --color-accent-2:       #E89E3D;
    --color-accent-2-end:   #C23C2A;
    --color-accent-2-hover: #D08930;
    --color-accent-2-end-hover: #A3321E;
    --color-sub-1:          #8B5A3D;
    --color-sub-2:          #C88A3D;
    --color-sub-3:          #D4A94D;
    --color-gray-dark:      #3D3326;
    --color-gray-light:     #E8E0D2;
    --color-bg-alt:         #F5EDD8;
    --color-highlight:      #FFE5A8;
    --mesh-1: #FFE4A8;
    --mesh-2: #FFCF8A;
    --mesh-3: #E8DFA8;
    --mesh-4: #F5D4A8;
  }
}

/* ============================================================
   BASE
   ============================================================ */
@layer base {
  html {
    color-scheme: light;
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.8;
    color: var(--color-gray-dark);
    background: var(--color-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    hanging-punctuation: first last;
  }

  h1, h2, h3 {
    color: var(--color-primary);
    font-weight: 700;
    text-wrap: balance;
  }

  h1 {
    font-family: var(--font-serif);
    font-size: clamp(36px, 6vw, 56px);
    line-height: 1.25;
    letter-spacing: -0.015em;
  }

  h2 {
    font-family: var(--font-display);
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.4;
    letter-spacing: -0.02em;
  }

  h3 {
    font-family: var(--font-display);
    font-size: clamp(20px, 2.2vw, 24px);
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: -0.015em;
  }

  p { max-width: var(--width-content); }

  a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--trans-fast);
  }
  a:hover { color: var(--color-accent-2); }
  a:focus-visible { outline: var(--ring); outline-offset: 3px; border-radius: 2px; }

  strong { font-weight: 700; }
  em { font-style: italic; }

  ::selection { background: var(--color-accent-2); color: var(--color-secondary); }
}

/* ============================================================
   UTILITIES
   ============================================================ */
@layer utilities {
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
  }

  .container {
    max-width: var(--width-container);
    margin-inline: auto;
    padding-inline: var(--space-3);
  }

  @media (min-width: 768px) {
    .container { padding-inline: var(--space-5); }
  }

  .section {
    padding-block: var(--space-7);
  }
  @media (min-width: 768px) {
    .section { padding-block: var(--space-8); }
  }

  .section--alt  { background: var(--color-bg-alt); }
  .section--dark {
    position: relative;
    background:
      radial-gradient(at 18% 22%, var(--mesh-1) 0%, transparent 50%),
      radial-gradient(at 82% 18%, var(--mesh-2) 0%, transparent 55%),
      radial-gradient(at 50% 85%, var(--mesh-3) 0%, transparent 58%),
      radial-gradient(at 10% 75%, var(--mesh-4) 0%, transparent 48%),
      var(--color-secondary);
    color: var(--color-primary);
    overflow: hidden;
  }
  .section--dark::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: var(--noise);
    opacity: 0.12;
    mix-blend-mode: multiply;
    pointer-events: none;
  }
  .section--dark > * { position: relative; z-index: 1; }
  .section--dark h1, .section--dark h2, .section--dark h3 { color: var(--color-primary); }

  /* Fade-up entrance */
  @media (prefers-reduced-motion: no-preference) {
    .fade-up {
      opacity: 0;
      transform: translateY(16px);
      transition:
        opacity var(--trans-slow),
        transform var(--trans-slow);
    }
    .fade-up.is-in {
      opacity: 1;
      transform: none;
    }

    /* Stagger (use with --i: N) */
    .stagger > * {
      transition-delay: calc(var(--i, 0) * 60ms);
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }
}

/* ============================================================
   COMPONENTS
   ============================================================ */
@layer components {

  /* Buttons ------------------------------------------------ */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.02em;
    text-decoration: none;
    min-width: 240px;
    min-height: 48px;
    transition:
      background-color var(--trans-fast),
      transform var(--trans-fast),
      box-shadow var(--trans-fast);
    cursor: pointer;
  }
  .btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-card-hover); }
  .btn:active { transform: translateY(0); }

  .btn-primary {
    background: var(--color-accent-2);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(232, 160, 32, 0.32);
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transition: background-color var(--trans-fast), transform var(--trans-fast), box-shadow var(--trans-fast);
    animation: reforma-btn-glow 5s ease-in-out infinite;
  }
  .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 55%;
    height: 100%;
    background: linear-gradient(
      110deg,
      transparent 15%,
      rgba(255, 255, 255, 0.55) 50%,
      transparent 85%
    );
    transform: translateX(-220%) skewX(-18deg);
    animation: reforma-btn-shine 5s cubic-bezier(0.22, 1, 0.36, 1) infinite;
    pointer-events: none;
    z-index: 0;
    mix-blend-mode: screen;
  }
  .btn-primary:hover {
    background: var(--color-accent-2-hover);
    color: #FFFFFF;
    box-shadow: 0 8px 22px rgba(232, 160, 32, 0.42);
    animation: none;
  }

  /* Header CTA: always-visible, animation disabled to avoid reading distraction */
  .site-nav__cta.btn-primary,
  .site-nav__cta.btn-primary::before {
    animation: none;
  }
  .site-nav__cta.btn-primary::before { display: none; }

  @keyframes reforma-btn-shine {
    0%   { transform: translateX(-220%) skewX(-18deg); }
    24%  { transform: translateX(320%) skewX(-18deg); }
    100% { transform: translateX(320%) skewX(-18deg); }
  }
  @keyframes reforma-btn-glow {
    0%, 100% { box-shadow: 0 4px 14px rgba(232, 160, 32, 0.32); }
    50%      { box-shadow: 0 6px 22px rgba(232, 160, 32, 0.55); }
  }

  .btn-secondary {
    background: var(--color-primary);
    color: #FFFFFF;
  }
  .btn-secondary:hover { background: var(--color-primary-hover); color: #FFFFFF; }

  .btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    box-shadow: none;
  }
  .btn-outline:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    box-shadow: 0 6px 18px rgba(26, 43, 76, 0.18);
  }
  .btn-outline [aria-hidden] {
    display: inline-block;
    transition: transform var(--trans-fast);
  }
  .btn-outline:hover [aria-hidden] { transform: translateX(3px); }

  .btn-sm { padding: 10px 20px; min-width: 160px; min-height: 40px; font-size: 13px; }
  .btn-lg { padding: 20px 40px; min-width: 280px; font-size: 17px; }

  /* Cards --------------------------------------------------- */
  .card {
    background: #FFFFFF;
    border: 1px solid var(--color-gray-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition:
      transform var(--trans-med),
      box-shadow var(--trans-med);
  }
  .card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
  }

  .card__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
    text-decoration: none;
  }

  .card__thumb {
    aspect-ratio: 16 / 10;
    position: relative;
    overflow: hidden;
  }
  .card__thumb--nutrition {
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-sub-2) 60%, white) 0%, var(--color-sub-2) 100%);
  }
  .card__thumb--training {
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-sub-1) 60%, white) 0%, var(--color-sub-1) 100%);
  }
  .card__thumb--knowledge {
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-sub-3) 60%, white) 0%, var(--color-sub-3) 100%);
  }
  .card__thumb-letter {
    position: absolute;
    bottom: -18%;
    right: -4%;
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 600;
    font-size: clamp(90px, 16vw, 160px);
    color: rgba(255, 255, 255, 0.26);
    line-height: 1;
    letter-spacing: -0.04em;
    pointer-events: none;
  }
  .card__thumb-num {
    position: absolute;
    top: 12px;
    left: 14px;
    font-family: var(--font-num);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.7);
  }

  .card__body {
    padding: var(--space-3) var(--space-3) var(--space-4);
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .card__tag {
    display: inline-block;
    align-self: flex-start;
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    color: #FFFFFF;
  }
  .card__tag--nutrition { background: var(--color-sub-2); }
  .card__tag--training  { background: var(--color-sub-1); }
  .card__tag--knowledge { background: var(--color-sub-3); }

  .card__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 20px;
    line-height: 1.4;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
  }

  .card__date {
    font-family: var(--font-body);
    font-size: 12px;
    color: #999;
    margin-top: auto;
    font-variant-numeric: tabular-nums;
  }
}

/* Site Header ---------------------------------------------- */
@layer components {
  .site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: rgba(248, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
  }
  .is-scrolled .site-header {
    border-bottom-color: var(--color-gray-light);
    box-shadow: 0 1px 4px rgba(26,43,76,0.04);
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: var(--space-2);
    gap: var(--space-3);
  }

  .site-header__logo {
    display: inline-flex;
    color: var(--color-primary);
    text-decoration: none;
    transition: transform var(--trans-fast);
  }
  .site-header__logo svg { height: 32px; width: auto; }
  .site-header__logo:hover { transform: scale(1.02); }

  .site-nav { display: none; }
  @media (min-width: 960px) {
    .site-nav {
      display: flex;
      align-items: center;
      gap: var(--space-4);
    }
    .site-nav__list {
      display: flex;
      gap: var(--space-4);
      font-family: var(--font-display);
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.02em;
    }
    .site-nav__list a {
      color: var(--color-primary);
      text-decoration: none;
      transition: color var(--trans-fast);
    }
    .site-nav__list a:hover { color: var(--color-accent-2); }
  }

  .site-header__toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 22px;
    padding: 2px;
  }
  .site-header__toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transition: transform var(--trans-fast), opacity var(--trans-fast);
  }
  .site-header__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .site-header__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .site-header__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  @media (min-width: 960px) {
    .site-header__toggle { display: none; }
  }

  .site-header__mobile {
    background: var(--color-secondary);
    padding: var(--space-4) var(--space-3);
    border-top: 1px solid var(--color-gray-light);
  }
  .site-header__mobile[hidden] { display: none; }
  .site-header__mobile-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
  }
  .site-header__mobile-list a {
    display: block;
    padding: var(--space-2) 0;
    color: var(--color-primary);
    text-decoration: none;
  }
  .site-header__mobile .btn { width: 100%; }

  /* Site Footer --------------------------------------------- */
  .site-footer {
    position: relative;
    background:
      radial-gradient(at 90% 20%, color-mix(in srgb, var(--color-accent-2) 15%, transparent) 0%, transparent 50%),
      radial-gradient(at 10% 80%, color-mix(in srgb, var(--color-accent-1) 10%, transparent) 0%, transparent 55%),
      var(--color-primary);
    color: var(--color-secondary);
    padding-block: var(--space-8);
    overflow: hidden;
  }
  .site-footer > * { position: relative; z-index: 1; }
  .site-footer a { color: var(--color-secondary); }
  .site-footer a:hover { color: var(--color-accent-2); }
  .site-footer__inner {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1fr;
  }
  @media (min-width: 768px) {
    .site-footer__inner { grid-template-columns: 1.2fr 1fr 1fr; }
  }
  .site-footer__brand svg { height: 48px; width: auto; margin-bottom: var(--space-2); }
  .site-footer__tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    font-size: 18px;
    letter-spacing: 0.01em;
    opacity: 0.88;
  }
  .site-footer__nav ul, .site-footer__legal ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: 13px;
  }
  .site-footer__disclaimer,
  .site-footer__copyright {
    grid-column: 1 / -1;
    font-size: 12px;
    opacity: 0.6;
    max-width: none;
  }
  .site-footer__disclaimer { line-height: 1.7; }
  .site-footer__copyright { font-family: var(--font-display); }

  /* Sticky CTA (mobile) ------------------------------------- */
  .sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky-cta);
    transform: translateY(100%);
    transition: transform var(--trans-med);
  }
  .sticky-cta.is-visible { transform: translateY(0); }
  .sticky-cta__link {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 18px var(--space-3);
    background: var(--gradient-primary);
    color: #FFFFFF;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    box-shadow: 0 -4px 16px color-mix(in srgb, var(--color-accent-2) 25%, transparent);
  }
  @media (min-width: 768px) {
    .sticky-cta { display: none; }
  }
}

@layer components {
  /* Hero ----------------------------------------------------- */
  .hero {
    position: relative;
    background:
      radial-gradient(at 15% 22%, var(--mesh-1) 0%, transparent 50%),
      radial-gradient(at 85% 18%, var(--mesh-2) 0%, transparent 55%),
      radial-gradient(at 55% 85%, var(--mesh-3) 0%, transparent 58%),
      radial-gradient(at 12% 75%, var(--mesh-4) 0%, transparent 48%),
      var(--color-secondary);
    overflow: hidden;
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding-block: var(--space-7);
  }
  .hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: var(--noise);
    opacity: 0.14;
    mix-blend-mode: multiply;
    pointer-events: none;
  }

  .hero__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    align-items: center;
    position: relative;
    z-index: 1;
  }
  @media (min-width: 960px) {
    .hero__inner {
      grid-template-columns: 1.2fr 1fr;
      gap: var(--space-8);
    }
  }

  .hero__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-3);
  }

  .hero__title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(32px, 4.4vw, 48px);
    line-height: 1.18;
    letter-spacing: -0.01em;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
  }

  .hero__subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    font-size: clamp(17px, 1.9vw, 22px);
    color: var(--color-primary);
    opacity: 0.78;
    margin-bottom: var(--space-3);
    letter-spacing: -0.005em;
  }

  .hero__description {
    font-family: var(--font-body);
    color: var(--color-primary);
    opacity: 0.72;
    max-width: 520px;
    margin-bottom: var(--space-5);
    font-size: 15px;
    line-height: 1.8;
  }

  .hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
  }

  /* Hero R Monogram — editorial: navy plate with amber rule frame --- */
  .hero__visual {
    position: relative;
    aspect-ratio: 3 / 4;
    border-radius: 2px;
    overflow: hidden;
    background: var(--color-primary);
    max-width: 520px;
    margin-inline: auto;
    box-shadow: 0 24px 60px rgba(26, 43, 76, 0.22);
  }
  /* Amber rule frame (inner) */
  .hero__visual::before {
    content: '';
    position: absolute;
    inset: 14px;
    border: 1px solid color-mix(in srgb, var(--color-accent-2) 55%, transparent);
    pointer-events: none;
    z-index: 2;
  }

  .hero__visual-monogram {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 52vw;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--color-secondary);
    opacity: 0.94;
    pointer-events: none;
  }
  @media (min-width: 960px) {
    .hero__visual-monogram { font-size: 28vw; }
  }
  @media (min-width: 1280px) {
    .hero__visual-monogram { font-size: 360px; }
  }

  .hero__visual-glow {
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 80% 20%, color-mix(in srgb, var(--color-accent-2) 18%, transparent) 0%, transparent 52%),
      radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.06) 0%, transparent 55%);
    mix-blend-mode: screen;
  }

  .hero__visual-caption {
    position: absolute;
    bottom: var(--space-3);
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    opacity: 0.85;
    z-index: 3;
  }
}

@layer components {

  /* Section intro (shared) --------------------------------- */
  .section-intro { margin-bottom: var(--space-6); text-align: center; }
  .section-intro__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-2);
  }
  .section-intro__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.3;
    letter-spacing: -0.03em;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
  }
  .section-intro__lead {
    max-width: 640px;
    margin-inline: auto;
    color: var(--color-gray-dark);
    opacity: 0.85;
    font-size: 15px;
  }
  .section--dark .section-intro__title { color: var(--color-primary); }
  .section--dark .section-intro__lead { color: var(--color-primary); opacity: 0.78; }

  /* Pillars ------------------------------------------------- */
  .pillars__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  @media (min-width: 768px) {
    .pillars__grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  }

  .pillar {
    background: #FFFFFF;
    border-radius: 2px;
    padding: var(--space-5) var(--space-4) var(--space-4);
    border-top: 3px solid;
    position: relative;
    transition: transform var(--trans-med), box-shadow var(--trans-med);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
  }
  .pillar:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
  }
  .pillar--nutrition { border-top-color: var(--color-sub-2); }
  .pillar--training  { border-top-color: var(--color-sub-1); }
  .pillar--knowledge { border-top-color: var(--color-sub-3); }

  .pillar__header { display: flex; flex-direction: column; gap: 4px; }
  .pillar__label {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--color-gray-dark);
    opacity: 0.55;
    font-weight: 700;
    margin: 0;
  }
  .pillar__title {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
    margin: 0;
  }
  .pillar__tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    opacity: 0.75;
    margin: 0;
  }

  .pillar__posts {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--color-gray-light);
  }
  .pillar__posts li { border-bottom: 1px solid var(--color-gray-light); }
  .pillar__posts li:last-child { border-bottom: none; }
  .pillar__posts a {
    display: block;
    padding: 12px 0;
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.5;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--trans-fast), transform var(--trans-fast);
  }
  .pillar__posts a:hover {
    color: var(--color-accent-2);
    transform: translateX(2px);
  }

  /* Pillar CTA — outlined button, full-width under posts */
  .pillar__cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: auto;
    padding: 12px 16px;
    min-height: 44px;
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-accent-2);
    background: transparent;
    border: 1px solid var(--color-accent-2);
    border-radius: var(--radius-sm);
    transition: background-color var(--trans-fast), color var(--trans-fast), gap var(--trans-fast), transform var(--trans-fast);
  }
  .pillar__cta:hover {
    background: var(--color-accent-2);
    color: #FFFFFF;
    gap: 12px;
  }

  /* Origin -------------------------------------------------- */
  .origin__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    align-items: center;
  }
  @media (min-width: 768px) {
    .origin__inner { grid-template-columns: 1fr 1.2fr; gap: var(--space-6); }
  }

  .origin__image {
    aspect-ratio: 4 / 5;
    background:
      linear-gradient(180deg, rgba(26,43,76,0.04) 0%, transparent 30%),
      var(--color-bg-alt);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-gray-light);
  }

  .origin__book-stack {
    position: absolute;
    inset: 18% 22%;
  }
  /* Book spine — gold stamped lines on leather-bound feel */
  .origin__book {
    position: absolute;
    left: 0; right: 0;
    height: 14%;
    border-radius: 1px 2px 2px 1px;
    box-shadow:
      0 3px 8px rgba(26, 43, 76, 0.18),
      inset 0 1px 0 rgba(255, 255, 255, 0.14),
      inset 0 -1px 0 rgba(0, 0, 0, 0.22);
  }
  /* Gold stamped horizontal rules (章題のメタファー) */
  .origin__book::before,
  .origin__book::after {
    content: '';
    position: absolute;
    left: 14%;
    right: 14%;
    height: 1px;
    background: var(--color-accent-2);
  }
  .origin__book::before { top: 30%; opacity: 0.6; }
  .origin__book::after  { bottom: 30%; opacity: 0.38; }

  .origin__book--1 { top: 12%; background: var(--color-sub-1);   transform: rotate(-1.6deg); }
  .origin__book--2 { top: 30%; background: var(--color-sub-2);   transform: rotate(1deg); }
  .origin__book--3 { top: 48%; background: var(--color-primary); transform: rotate(-0.6deg); }
  .origin__book--4 { top: 66%; background: #3D2B1F;              transform: rotate(1.2deg); }

  .origin__caption {
    position: absolute;
    bottom: var(--space-3);
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: 10px;
    color: var(--color-accent-2);
    letter-spacing: 0.34em;
    text-transform: uppercase;
    font-weight: 700;
    padding-bottom: 3px;
    border-bottom: 1px solid color-mix(in srgb, var(--color-accent-2) 60%, transparent);
  }

  .origin__copy { max-width: 560px; }
  .origin__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-3);
  }
  .origin__lead {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(22px, 2.4vw, 30px);
    line-height: 1.5;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--space-4);
    letter-spacing: -0.005em;
    border-left: 2px solid var(--color-accent-2);
    padding-left: var(--space-3);
  }
  .origin__copy p {
    font-family: var(--font-body);
    margin-bottom: var(--space-2);
    line-height: 1.85;
    font-size: 15px;
    color: var(--color-gray-dark);
  }
  .origin__cta { margin-top: var(--space-3); }

  /* Whitepaper CTA ----------------------------------------- */
  .whitepaper-cta .section-intro__title { color: var(--color-primary); }
  .whitepaper-cta .section-intro__lead { color: var(--color-primary); opacity: 0.75; }

  .wp-tiles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-1);
    margin-block: var(--space-5);
  }
  @media (min-width: 640px) {
    .wp-tiles { grid-template-columns: repeat(6, 1fr); gap: var(--space-2); }
  }
  @media (min-width: 960px) {
    .wp-tiles { grid-template-columns: repeat(8, 1fr); gap: 10px; }
  }

  .wp-tile {
    aspect-ratio: 2 / 3;
    background: linear-gradient(160deg, color-mix(in srgb, var(--color-sub-3) 60%, white) 0%, var(--color-sub-3) 100%);
    border-radius: 6px;
    padding: 10px 8px;
    color: #FFFFFF;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--trans-fast), box-shadow var(--trans-fast);
  }
  .wp-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px color-mix(in srgb, var(--color-accent-2) 25%, transparent);
  }
  .wp-tile--n { background: linear-gradient(160deg, color-mix(in srgb, var(--color-sub-2) 60%, white) 0%, var(--color-sub-2) 100%); }
  .wp-tile--t { background: linear-gradient(160deg, color-mix(in srgb, var(--color-sub-1) 60%, white) 0%, var(--color-sub-1) 100%); }
  .wp-tile__num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(12px, 1.4vw, 18px);
    line-height: 1;
    opacity: 0.92;
  }
  .wp-tile__cat {
    font-family: var(--font-display);
    font-size: clamp(7px, 0.7vw, 9px);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    opacity: 0.55;
  }
  .wp-tile__title {
    font-family: var(--font-body);
    font-size: clamp(8px, 0.9vw, 11px);
    line-height: 1.35;
    font-weight: 500;
    opacity: 0.9;
  }

  .whitepaper-cta__action { text-align: center; }
  .whitepaper-cta__note {
    font-size: 12px;
    opacity: 0.6;
    color: var(--color-primary);
    margin-top: var(--space-2);
    max-width: none;
  }

  /* Blog Latest --------------------------------------------- */
  .blog-latest__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  @media (min-width: 640px) {
    .blog-latest__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
  }
  @media (min-width: 960px) {
    .blog-latest__grid { grid-template-columns: repeat(3, 1fr); }
  }
  .blog-latest__more { text-align: center; margin-top: var(--space-5); }

  /* Final CTA ---------------------------------------------- */
  .final-cta__inner { text-align: center; }
  .final-cta__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(28px, 4vw, 40px);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    text-wrap: balance;
    letter-spacing: -0.03em;
  }
  .final-cta__sub {
    color: var(--color-primary);
    opacity: 0.8;
    margin-bottom: var(--space-4);
    max-width: 560px;
    margin-inline: auto;
  }

}

@layer components {

  /* Profile Page -------------------------------------------- */
  .profile-hero {
    padding-block: var(--space-6) var(--space-5);
    border-bottom: 1px solid var(--color-gray-light);
  }
  .profile-hero__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    align-items: center;
  }
  @media (min-width: 768px) {
    .profile-hero__inner {
      grid-template-columns: minmax(0, 320px) 1fr;
      gap: var(--space-6);
    }
  }
  .profile-hero__photo {
    aspect-ratio: 4 / 5;
    border-radius: 2px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--color-gray-light);
    background: var(--color-bg-alt);
  }
  .profile-hero__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .profile-hero__photo--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--space-2);
    background:
      linear-gradient(160deg, color-mix(in srgb, var(--color-primary) 8%, transparent) 0%, transparent 70%),
      var(--color-bg-alt);
  }
  .profile-hero__photo-initial {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 600;
    font-size: clamp(120px, 18vw, 180px);
    line-height: 1;
    color: var(--color-accent-2);
    opacity: 0.55;
    letter-spacing: -0.04em;
  }
  .profile-hero__photo-hint {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-gray-dark);
    opacity: 0.5;
    text-align: center;
    padding: 0 var(--space-2);
  }
  .profile-hero__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-3);
  }
  .profile-hero__name {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(36px, 5vw, 56px);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.015em;
    line-height: 1.15;
  }
  .profile-hero__tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(16px, 1.8vw, 20px);
    color: var(--color-primary);
    opacity: 0.85;
    margin-bottom: var(--space-3);
    line-height: 1.5;
  }
  .profile-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: 0;
    list-style: none;
  }
  .profile-hero__meta li {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.7;
    padding: 5px 12px;
    border: 1px solid color-mix(in srgb, var(--color-primary) 18%, transparent);
    border-radius: 999px;
  }

  /* Profile Story */
  .profile-story__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  @media (min-width: 960px) {
    .profile-story__inner {
      grid-template-columns: 280px 1fr;
      gap: var(--space-6);
    }
    .profile-story__header { position: sticky; top: calc(var(--space-7) + 20px); }
  }
  .profile-story__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-2);
  }
  .profile-story__title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(24px, 2.8vw, 32px);
    color: var(--color-primary);
    line-height: 1.3;
    letter-spacing: -0.01em;
  }
  .profile-story__lead {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(17px, 1.8vw, 20px);
    line-height: 1.75;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--space-4);
    padding-left: var(--space-3);
    border-left: 2px solid var(--color-accent-2);
  }
  .profile-story__body h3 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 18px;
    color: var(--color-primary);
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
  }
  .profile-story__body p {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-gray-dark);
    margin-bottom: var(--space-3);
  }
  .profile-story__caption {
    font-size: 12px;
    color: var(--color-gray-dark);
    opacity: 0.55;
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px dashed var(--color-gray-light);
  }

  /* Blog Hero ---------------------------------------------- */
  .blog-hero {
    padding-block: var(--space-6) var(--space-5);
    position: relative;
    border-bottom: 1px solid var(--color-gray-light);
  }
  .blog-hero--nutrition { border-top: 3px solid var(--color-sub-2); }
  .blog-hero--training  { border-top: 3px solid var(--color-sub-1); }
  .blog-hero--knowledge { border-top: 3px solid var(--color-sub-3); }
  .blog-hero__inner { text-align: center; max-width: 720px; margin-inline: auto; }
  .blog-hero__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-3);
  }
  .blog-hero__title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(32px, 4.5vw, 48px);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.015em;
    line-height: 1.2;
  }
  .blog-hero__count {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    margin-top: var(--space-4);
    padding: 6px 18px;
    border: 1px solid color-mix(in srgb, var(--color-primary) 15%, transparent);
    border-radius: 999px;
  }
  .blog-hero__count-num {
    font-family: var(--font-num);
    font-weight: 700;
    font-size: 18px;
    color: var(--color-accent-2);
    letter-spacing: -0.02em;
  }
  .blog-hero__count-unit {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.7;
  }

  /* Category Filter ---------------------------------------- */
  .category-filter {
    padding-block: var(--space-4);
    border-bottom: 1px solid var(--color-gray-light);
  }
  .category-filter__list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
  }
  .category-filter__pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px 7px 18px;
    border-radius: 999px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-primary);
    text-decoration: none;
    background: transparent;
    border: 1px solid var(--color-gray-light);
    transition: background var(--trans-fast), color var(--trans-fast), border-color var(--trans-fast);
  }
  .category-filter__pill:hover {
    border-color: var(--color-primary);
  }
  .category-filter__pill-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 22px;
    padding: 0 8px;
    font-family: var(--font-num);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0;
    color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 8%, transparent);
    border-radius: 999px;
    transition: background var(--trans-fast), color var(--trans-fast);
  }
  .category-filter__pill.is-active {
    background: var(--color-primary);
    color: var(--color-secondary);
    border-color: var(--color-primary);
  }
  .category-filter__pill.is-active .category-filter__pill-count {
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
  }
  .category-filter__pill--nutrition.is-active { background: var(--color-sub-2); border-color: var(--color-sub-2); color: #FFFFFF; }
  .category-filter__pill--training.is-active  { background: var(--color-sub-1); border-color: var(--color-sub-1); color: #FFFFFF; }
  .category-filter__pill--knowledge.is-active { background: var(--color-sub-3); border-color: var(--color-sub-3); color: #FFFFFF; }

  /* Blog Grid ---------------------------------------------- */
  .blog-grid__list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  @media (min-width: 640px) {
    .blog-grid__list { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
    .blog-grid__item--featured { grid-column: span 2; }
  }
  @media (min-width: 960px) {
    .blog-grid__list { grid-template-columns: repeat(3, 1fr); }
    .blog-grid__item--featured { grid-column: span 3; }
  }

  /* Featured card: horizontal layout on desktop */
  @media (min-width: 768px) {
    .card--featured .card__link {
      display: grid;
      grid-template-columns: 1.3fr 1fr;
      gap: 0;
      align-items: stretch;
    }
    .card--featured .card__thumb { aspect-ratio: auto; height: 100%; min-height: 280px; }
    .card--featured .card__body {
      padding: var(--space-4) var(--space-5);
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: var(--space-2);
    }
    .card--featured .card__title {
      font-size: clamp(22px, 2.4vw, 28px);
      line-height: 1.35;
    }
  }
  .card__excerpt {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-gray-dark);
    opacity: 0.8;
    margin-top: 4px;
  }

  /* Empty state — editorial and CTA-connected */
  .blog-grid__empty {
    text-align: center;
    padding: var(--space-7) var(--space-4);
    max-width: 520px;
    margin-inline: auto;
  }
  .blog-grid__empty-mark {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--color-accent-2);
    opacity: 0.45;
    letter-spacing: 0.6em;
    margin-bottom: var(--space-4);
  }
  .blog-grid__empty-title {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 600;
    font-size: clamp(22px, 2.4vw, 28px);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
  }
  .blog-grid__empty-desc {
    font-size: 14px;
    line-height: 1.85;
    color: var(--color-gray-dark);
    opacity: 0.75;
    margin-bottom: var(--space-4);
  }

  /* Pagination --------------------------------------------- */
  .pagination { padding: var(--space-5) 0 var(--space-7); }
  .pagination__list {
    display: flex;
    justify-content: center;
    gap: var(--space-1);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 14px;
  }
  .pagination__list a,
  .pagination__list span {
    display: inline-block;
    min-width: 40px;
    padding: 8px 12px;
    text-align: center;
    text-decoration: none;
    color: var(--color-primary);
    border-radius: var(--radius-sm);
    transition: background var(--trans-fast), color var(--trans-fast);
  }
  .pagination__list a:hover { background: var(--color-bg-alt); }
  .pagination__list .current {
    background: var(--color-primary);
    color: var(--color-secondary);
  }
  .pagination__list .dots { color: var(--color-gray-dark); opacity: 0.5; }

  /* Article Header ----------------------------------------- */
  .article-header {
    padding-block: var(--space-6) var(--space-5);
  }
  .article-header .container { max-width: 880px; }
  .article-header__cat {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    color: #FFFFFF;
    text-decoration: none;
    margin-bottom: var(--space-3);
  }
  .article-header__cat--nutrition { background: var(--color-sub-2); }
  .article-header__cat--training  { background: var(--color-sub-1); }
  .article-header__cat--knowledge { background: var(--color-sub-3); }

  .article-header__title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.22;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
    letter-spacing: -0.015em;
  }
  .article-header__meta {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-gray-dark);
    opacity: 0.65;
    margin-bottom: var(--space-5);
  }
  .article-header__thumb {
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 21 / 9;
  }
  .article-header__thumb img { width: 100%; height: 100%; object-fit: cover; }

  /* Article body + layout ---------------------------------- */
  .article {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    padding-block: var(--space-5) var(--space-7);
  }
  @media (min-width: 1024px) {
    .article {
      grid-template-columns: 1fr minmax(auto, 720px) 220px;
      gap: var(--space-6);
      align-items: start;
    }
    .article__toc-wrap {
      grid-column: 3;
      grid-row: 1;
      position: sticky;
      top: calc(var(--space-7) + 20px);
    }
    .article__body {
      grid-column: 2;
      grid-row: 1;
    }
  }

  /* Prose ------------------------------------------------- */
  .prose {
    max-width: var(--width-content);
    line-height: 1.9;
  }
  .prose h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 26px;
    margin-top: var(--space-5);
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-1);
    border-bottom: 2px solid var(--color-gray-light);
    letter-spacing: -0.025em;
  }
  .prose h3 {
    font-size: 20px;
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
  }
  .prose p {
    margin-bottom: var(--space-3);
    max-width: none;
  }
  .prose ul, .prose ol {
    margin: var(--space-3) 0;
    padding-left: var(--space-4);
  }
  .prose ul li { list-style: disc; margin-bottom: var(--space-1); }
  .prose ol li { list-style: decimal; margin-bottom: var(--space-1); }
  .prose blockquote {
    border-left: 2px solid var(--color-accent-2);
    padding: var(--space-2) var(--space-3);
    margin: var(--space-4) 0;
    background: var(--color-bg-alt);
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    font-size: 20px;
    line-height: 1.6;
    color: var(--color-primary);
    letter-spacing: -0.005em;
  }
  .prose img, .prose figure {
    margin: var(--space-4) 0;
    border-radius: var(--radius-sm);
  }
  .prose strong { color: var(--color-primary); font-weight: 700; }

  /* TOC --------------------------------------------------- */
  .toc__mobile { display: block; margin-bottom: var(--space-4); }
  .toc__desktop { display: none; }
  .toc__mobile summary {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    cursor: pointer;
    list-style: none;
  }
  .toc__mobile summary::before { content: '▸ '; }
  .toc__mobile[open] summary::before { content: '▾ '; }
  .toc__mobile ol {
    margin-top: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: 13px;
  }
  @media (min-width: 1024px) {
    .toc__mobile { display: none; }
    .toc__desktop { display: block; }
    .toc__label {
      font-family: var(--font-display);
      font-size: 11px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--color-accent-2);
      font-weight: 700;
      margin-bottom: var(--space-2);
    }
    .toc__desktop ol {
      font-family: var(--font-body);
      font-size: 13px;
      line-height: 1.7;
      border-left: 2px solid var(--color-gray-light);
      padding-left: var(--space-2);
    }
    .toc__desktop ol li { margin-bottom: 6px; }
    .toc__desktop a {
      color: var(--color-gray-dark);
      opacity: 0.7;
      text-decoration: none;
      transition: opacity var(--trans-fast), color var(--trans-fast);
    }
    .toc__desktop a:hover { opacity: 1; color: var(--color-primary); }
    .toc__desktop a.is-active {
      opacity: 1;
      color: var(--color-primary);
      font-weight: 600;
    }
  }

  /* Inline CTA ------------------------------------------- */
  .inline-cta {
    margin: var(--space-6) 0;
    padding: var(--space-5);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid color-mix(in srgb, var(--color-accent-2) 15%, transparent);
    border-left: 3px solid var(--color-accent-2);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
  }
  .inline-cta__label {
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-1);
  }
  .inline-cta__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 22px;
    color: var(--color-primary);
    margin-bottom: var(--space-1);
    letter-spacing: -0.02em;
  }
  .inline-cta__sub {
    font-size: 14px;
    color: var(--color-gray-dark);
    opacity: 0.7;
    margin-bottom: var(--space-3);
  }

  /* Related ------------------------------------------------ */
  .related { background: var(--color-bg-alt); }
  .related__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  @media (min-width: 768px) {
    .related__grid { grid-template-columns: repeat(3, 1fr); }
  }

  /* Article Footer CTA ------------------------------------ */
  .article-footer-cta__inner { text-align: center; }
  .article-footer-cta__label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-2);
    font-weight: 700;
    margin-bottom: var(--space-2);
  }
  .article-footer-cta__title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(26px, 3.5vw, 36px);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.025em;
  }
  .article-footer-cta__desc {
    color: var(--color-primary);
    opacity: 0.8;
    max-width: 560px;
    margin: 0 auto var(--space-4);
  }
}