/* ساختار: متغیرهای طراحی، اجزای صفحه، پاسخگویی موبایل */
/* ========================================================
       فونت لوکال وزیر متن و متغیرهای طراحی روشن (Light Editorial)
       ======================================================== */
    @font-face {
      font-family: 'Vazirmatn';
      src: url('../fonts/Vazirmatn.woff2') format('woff2');
      font-weight: 100 900;
      font-style: normal;
      font-display: swap;
    }

    :root {
      --bg-base: #f8fafc;
      --bg-surface: #ffffff;
      --bg-subtle: #f1f5f9;
      --border-subtle: #e2e8f0;
      --border-strong: #cbd5e1;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-dim: #64748b;
      --navy-deep: #0f2744;
      --navy-accent: #1e3a8a;
      --navy-light: #eff6ff;
      --amber-editorial: #b45309;
      --amber-subtle: #fef3c7;
      --rose-clinical: #be123c;
      --rose-subtle: #fff1f2;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
      --shadow-card: 0 4px 16px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -2px rgba(15, 23, 42, 0.03);
      --shadow-float: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-base);
    }

    body {
      font-family: 'Vazirmatn', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.8;
      font-size: 14.5px;
      overflow-x: hidden;
      padding-bottom: 48px;
    }

    /* تایپوگرافی قرآنی با پس زمینه تمیز و حاشیه تذهیب ظریف */
    .quran-box {
      background: #fafaf9;
      border: 1px solid #e7e5e4;
      border-right: 4px solid var(--navy-accent);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      margin: 12px 0;
    }

    .quran-verse {
      font-size: 1.35rem;
      line-height: 2.3;
      color: var(--navy-deep);
      text-align: center;
      font-weight: 700;
      padding: 6px 0 12px 0;
    }


    /* دکمه پخش صوت آیه */
    .verse-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 6px;
    }
    .verse-row {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .verse-row .quran-verse {
      flex: 1;
      min-width: 0;
    }
    .verse-translation {
      font-size: 12.5px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .verse-play {
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 12px;
      border: 1px solid var(--navy-accent);
      border-radius: 9999px;
      background: var(--navy-light);
      color: var(--navy-accent);
      font-family: inherit;
      font-size: 12px;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease;
    }
    .verse-play:hover { background: var(--navy-accent); color: #ffffff; }
    .verse-play.playing { background: var(--navy-accent); color: #ffffff; }
    .verse-play:focus-visible { outline: 2px solid var(--amber-editorial); outline-offset: 2px; }
    .verse-play .play-icon { font-size: 11px; line-height: 1; }
    .verse-audio-error {
      display: block;
      margin-top: 6px;
      font-size: 11.5px;
      color: var(--rose-clinical);
    }
    @media (max-width: 600px) {
      .verse-row { flex-direction: column; align-items: stretch; }
      .verse-play { align-self: center; }
    }

    /* نوار اسکرول */
    ::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    ::-webkit-scrollbar-track {
      background: #f1f5f9;
    }
    ::-webkit-scrollbar-thumb {
      background: #cbd5e1;
      border-radius: 9999px;
    }

    /* انیمیشن های نرم */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(14px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .fade-in {
      animation: fadeIn 0.5s ease-out;
    }

    /* چیدمان کلی */
    .container {
      width: 100%;
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 16px;
    }

    /* نوار ناوبری بالا */
    .nav-bar {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
    }

    .top-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      max-width: 1100px;
      margin: 0 auto;
      gap: 12px;
    }

    .brand-mark {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--text-main);
    }

    .brand-icon {
      width: 36px;
      height: 36px;
      background: var(--navy-deep);
      color: #ffffff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .brand-title h1 {
      font-size: 15px;
      font-weight: 800;
      color: var(--navy-deep);
      line-height: 1.2;
    }

    .brand-title span {
      font-size: 11px;
      color: var(--text-dim);
      display: block;
    }

    .author-badge-header {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 12px;
      background: #f8fafc;
      border: 1px solid var(--border-subtle);
      border-radius: 9999px;
      font-size: 11.5px;
      font-weight: 700;
      color: var(--navy-deep);
      white-space: nowrap;
    }

    /* نوار افقی چیپس های ناوبری */
    .chips-wrapper {
      display: flex;
      gap: 8px;
      padding: 0 16px 10px 16px;
      overflow-x: auto;
      white-space: nowrap;
      scrollbar-width: none;
      max-width: 1100px;
      margin: 0 auto;
    }

    .chips-wrapper::-webkit-scrollbar {
      display: none;
    }

    .chip-item {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      background: #f1f5f9;
      border: 1px solid transparent;
      border-radius: 9999px;
      color: var(--text-muted);
      font-size: 12px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.2s ease;
      cursor: pointer;
    }

    .chip-item:hover {
      background: #e2e8f0;
      color: var(--navy-deep);
    }

    .chip-item.active {
      background: var(--navy-deep);
      color: #ffffff;
    }

    /* بنر اصلی و عنوان پژوهش */
    .hero-panel {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      margin-top: 18px;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .eyebrow-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 6px;
      background: var(--navy-light);
      color: var(--navy-accent);
      font-size: 11.5px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .hero-title {
      font-size: 23px;
      font-weight: 900;
      color: var(--navy-deep);
      line-height: 1.45;
      margin-bottom: 12px;
    }

    .hero-lead {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.85;
      text-align: justify;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 22px;
    }

    @media (min-width: 640px) {
      .metric-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .metric-card {
      background: #f8fafc;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 14px;
      text-align: center;
    }

    .metric-val {
      font-size: 21px;
      font-weight: 900;
      color: var(--navy-deep);
      display: block;
      line-height: 1.2;
    }

    .metric-lbl {
      font-size: 11px;
      color: var(--text-dim);
      margin-top: 4px;
      font-weight: 600;
    }

    /* ساختار بخش ها */
    .section-wrap {
      padding: 38px 0 16px 0;
    }

    .section-heading {
      margin-bottom: 20px;
    }

    .section-category {
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: var(--amber-editorial);
      text-transform: uppercase;
      display: block;
      margin-bottom: 4px;
    }

    .section-category.clinical {
      color: var(--rose-clinical);
    }

    .section-category.modern {
      color: var(--navy-accent);
    }

    .main-title {
      font-size: 21px;
      font-weight: 800;
      color: var(--navy-deep);
      line-height: 1.4;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .sub-lead {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 6px;
      line-height: 1.8;
      text-align: justify;
    }

    /* کارت های سفید ژورنالیستی */
    .card-white {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 16px;
      box-shadow: var(--shadow-card);
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .card-white:hover {
      box-shadow: var(--shadow-float);
      border-color: #cbd5e1;
    }

    /* شبکه بندی ها */
    .grid-2 {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }

    @media (min-width: 768px) {
      body {
        font-size: 15px;
      }
      .grid-2 {
        grid-template-columns: 1fr 1fr;
      }
      .grid-3 {
        grid-template-columns: repeat(3, 1fr);
      }
      .main-title {
        font-size: 23px;
      }
    }

    /* جعبه ارزیابی دوگانه (موفقیت ها و نارسایی های روش های مدرن) */
    .eval-box {
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      background: #ffffff;
      overflow: hidden;
      margin-top: 14px;
      box-shadow: var(--shadow-card);
    }

    .eval-header {
      padding: 14px 18px;
      background: #f1f5f9;
      border-bottom: 1px solid var(--border-subtle);
      font-weight: 800;
      font-size: 13.5px;
      color: var(--navy-deep);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .eval-grid {
      display: grid;
      grid-template-columns: 1fr;
    }

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

    .eval-col {
      padding: 18px;
    }

    .eval-col.success {
      background: #fafaf9;
      border-bottom: 1px solid var(--border-subtle);
    }

    @media (min-width: 768px) {
      .eval-col.success {
        border-bottom: none;
        border-left: 1px solid var(--border-subtle);
      }
    }

    .eval-col.unsolved {
      background: #ffffff;
    }

    .col-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 6px;
      margin-bottom: 12px;
      letter-spacing: 0.3px;
    }

    .col-badge.success {
      background: #e2e8f0;
      color: #1e293b;
    }

    .col-badge.unsolved {
      background: var(--rose-subtle);
      color: var(--rose-clinical);
    }

    /* فیلتر بیماری ها */
    .filter-row {
      display: flex;
      gap: 8px;
      overflow-x: auto;
      padding-bottom: 8px;
      margin-bottom: 16px;
      scrollbar-width: none;
    }
    .filter-row::-webkit-scrollbar {
      display: none;
    }

    .filter-chip {
      background: #ffffff;
      color: var(--text-muted);
      border: 1px solid var(--border-subtle);
      border-radius: 9999px;
      padding: 6px 14px;
      font-size: 12px;
      font-weight: 600;
      white-space: nowrap;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .filter-chip.active {
      background: var(--navy-deep);
      color: #ffffff;
      border-color: var(--navy-deep);
    }

    /* تعاملی بودن کارت های بیماری */
    .disease-card {
      cursor: pointer;
      border-top: 3px solid var(--border-subtle);
    }

    .disease-card:hover {
      border-top-color: var(--navy-accent);
      transform: translateY(-2px);
    }

    /* مقایسه تاریخ بهداشت با پالت خنثی تحریریه (بدون سبز و قرمز) */
    .history-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }

    .history-card-header {
      padding: 12px 18px;
      background: #f8fafc;
      border-bottom: 1px solid var(--border-subtle);
      font-weight: 800;
      font-size: 13px;
      color: var(--navy-deep);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .history-card-body {
      display: grid;
      grid-template-columns: 1fr;
    }

    @media (min-width: 680px) {
      .history-card-body {
        grid-template-columns: 1fr 1fr;
      }
    }

    .history-block {
      padding: 16px 18px;
      font-size: 12.5px;
      line-height: 1.85;
      text-align: justify;
    }

    .history-block.islamic {
      background: #f8fafc;
      border-bottom: 1px solid var(--border-subtle);
    }

    @media (min-width: 680px) {
      .history-block.islamic {
        border-bottom: none;
        border-left: 1px solid var(--border-subtle);
      }
    }

    .history-block.european {
      background: #ffffff;
    }

    .history-tag {
      display: inline-block;
      font-size: 10.5px;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 6px;
    }

    .history-tag.islamic {
      background: #e2e8f0;
      color: #0f172a;
    }

    .history-tag.european {
      background: #f1f5f9;
      color: #475569;
    }

    /* شناسنامه و کردیت پژوهش ثریتا فلاح */
    .research-dossier {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 24px 20px;
      margin-top: 28px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    @media (min-width: 640px) {
      .research-dossier {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
      }
    }

    .dossier-meta {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .dossier-avatar {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--navy-deep);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 18px;
      flex-shrink: 0;
    }

    /* دکمه شناور بالا */
    .float-top-btn {
      position: fixed;
      bottom: 20px;
      left: 20px;
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--navy-deep);
      color: #ffffff;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-float);
      cursor: pointer;
      opacity: 0;
      pointer-events: none;
      transition: all 0.25s ease;
      z-index: 90;
    }

    .float-top-btn.visible {
      opacity: 1;
      pointer-events: auto;
    }

    /* مودال بالینی ژورنالیستی */
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(15, 23, 42, 0.6);
      backdrop-filter: blur(4px);
      -webkit-backdrop-filter: blur(4px);
      z-index: 200;
      display: flex;
      align-items: flex-end;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s ease;
    }

    @media (min-width: 640px) {
      .modal-overlay {
        align-items: center;
        padding: 20px;
      }
    }

    .modal-overlay.open {
      opacity: 1;
      pointer-events: auto;
    }

    .modal-window {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-top-left-radius: 20px;
      border-top-right-radius: 20px;
      width: 100%;
      max-width: 620px;
      max-height: 88vh;
      overflow-y: auto;
      padding: 24px;
      box-shadow: var(--shadow-float);
      transform: translateY(40px);
      transition: transform 0.25s ease;
    }

    @media (min-width: 640px) {
      .modal-window {
        border-radius: 20px;
        transform: translateY(0);
      }
    }

    .modal-overlay.open .modal-window {
      transform: translateY(0);
    }