:root {
      --primary-red: #dc2626;
      --red-dark: #b91c1c;
      --yellow: #fbbf24;
      --black: #111111;
      --off-white: #f7f5f2;
      --mid: #4b5563;
      --card-bg: #ffffff;
      --border: #e2e0dc;
      --nav-h: 68px;
    }

    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

    html, body {
      overflow: visible;
      width: 100%;
    }

    body {
      font-family: 'DM Sans', sans-serif;
      background: var(--off-white);
      color: var(--black);
      min-height: 100vh;
    }

  
    /* ════════════════════════════
       PAGE LAYOUT — equal halves
    ════════════════════════════ */
    .page {
      display: grid;
      grid-template-columns: 1fr 1fr;
      min-height: calc(100vh - var(--nav-h));
      margin-top: var(--nav-h);
      align-items: start;
    }

    /* ════════════════════════════
       SIDEBAR
    ════════════════════════════ */
    .sidebar {
      color: #fff;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      position: sticky;
      top: var(--nav-h);
      height: calc(100vh - var(--nav-h));
      padding: 3rem;

      /* Background photo */
      background-image: url('https://images.unsplash.com/photo-1531482615713-2afd69097998?w=1200&q=80');
      background-size: cover;
      background-position: center;
    }

    /* Deep red gradient overlay for readability */
    .sidebar::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(
        160deg,
        rgba(185, 28, 28, 0.88) 0%,
        rgba(120, 10, 10, 0.92) 60%,
        rgba(17, 17, 17, 0.82) 100%
      );
      pointer-events: none;
      z-index: 1;
    }

    .sidebar-inner {
      text-align: center;
      z-index: 2;
      position: relative;
      width: 100%;
      max-width: 420px;
    }

    .wordmark {
      font-family: var(--font-display, 'Playfair Display', Georgia, serif);
      font-size: 4.2rem;
      font-weight: 900;
      letter-spacing: -2px;
      line-height: 1;
      color: #fff;
    }

    .sidebar-tagline {
      margin-top: 1.25rem;
      font-size: 1.05rem;
      font-weight: 400;
      color: rgba(255,255,255,0.9);
      line-height: 1.65;
      max-width: 300px;
      margin-left: auto;
      margin-right: auto;
    }

    .divider {
      width: 40px;
      height: 2px;
      background: rgba(255,255,255,0.35);
      margin: 2rem auto;
    }

    .stat-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.85rem;
    }

    .stat {
      padding: 1.1rem 1rem;
      border: 1px solid rgba(255,255,255,0.3);
      border-radius: 10px;
      background: rgba(0,0,0,0.25);
      backdrop-filter: blur(6px);
    }

    .stat-num {
      font-family: var(--font-display, 'Playfair Display', Georgia, serif);
      font-size: 1.75rem;
      font-weight: 800;
      color: #fff;
      display: block;
      line-height: 1;
    }

    .stat-label {
      font-size: 0.78rem;
      color: rgba(255,255,255,0.82);
      margin-top: 0.3rem;
      display: block;
    }

    /* ════════════════════════════
       MAIN CONTENT
    ════════════════════════════ */
    .content {
      background: var(--off-white);
      padding: 3rem;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      position: relative;
    }

    .section-label {
      font-size: 0.72rem;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--primary-red);
      margin-bottom: 0.5rem;
    }

    .page-heading {
      font-family: var(--font-display, 'Playfair Display', Georgia, serif);
      font-size: 2.6rem;
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -0.5px;
      color: var(--black);
      margin-bottom: 2.25rem;
    }

    /* ════════════════════════════
       TABS
    ════════════════════════════ */
    .audience-tabs {
      display: flex;
      gap: 0.5rem;
      margin-bottom: 2.5rem;
      flex-wrap: wrap;
    }

    .tab-btn {
      font-family: 'DM Sans', sans-serif;
      font-size: 0.9rem;
      font-weight: 500;
      padding: 0.6rem 1.35rem;
      border-radius: 100px;
      border: 1.5px solid var(--border);
      background: transparent;
      color: var(--mid);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .tab-btn:hover { border-color: var(--primary-red); color: var(--primary-red); }
    .tab-btn.active { background: var(--primary-red); border-color: var(--primary-red); color: #fff; font-weight: 600; }

    /* ════════════════════════════
       PANELS
    ════════════════════════════ */
    .panel { display: none; }
    .panel.active { display: block; animation: fadeUp 0.28s ease forwards; }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(10px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ════════════════════════════
       SIMPLE CARD (student / partner)
    ════════════════════════════ */
    .simple-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 2.5rem;
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    }

    .simple-card h3 {
      font-family: var(--font-display, 'Playfair Display', Georgia, serif);
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--black);
      margin-bottom: 0.85rem;
    }

    .simple-card p {
      color: var(--mid);
      font-size: 1rem;
      line-height: 1.75;
    }

    /* ════════════════════════════
       CTA BUTTONS
    ════════════════════════════ */
    .cta-btn {
      display: inline-block;
      margin-top: 1.75rem;
      padding: 0.9rem 2.25rem;
      border-radius: 100px;
      background: var(--primary-red);
      color: #fff;
      font-family: 'DM Sans', sans-serif;
      font-weight: 600;
      font-size: 0.95rem;
      border: none;
      cursor: pointer;
      text-decoration: none;
      transition: background 0.2s, transform 0.15s;
    }

    .cta-btn:hover { background: #b91c1c; transform: translateY(-1px); }

    /* ════════════════════════════
       VOLUNTEER PANEL
    ════════════════════════════ */
    .roles-intro {
      font-size: 1rem;
      color: var(--mid);
      line-height: 1.7;
      margin-bottom: 1.75rem;
      font-family: var(--font-display);
    }

    .roles-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }

    .role-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 1.6rem 1.5rem 1.4rem;
      transition: box-shadow 0.2s, transform 0.15s, border-color 0.2s;
      position: relative;
      overflow: hidden;
    }

    .role-card::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0; right: 0;
      height: 3px;
      background: var(--primary-red);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.25s ease;
    }

    .role-card:hover {
      box-shadow: 0 6px 20px rgba(0,0,0,0.08);
      transform: translateY(-2px);
      border-color: #d1cfc9;
    }

    .role-card:hover::after { transform: scaleX(1); }

    .role-icon-sq {
      width: 38px;
      height: 38px;
      border-radius: 9px;
      background: #fef2f2;
      border: 1px solid rgba(220,38,38,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 0.85rem;
    }

    .role-icon-sq svg {
      width: 18px;
      height: 18px;
      stroke: var(--primary-red);
      fill: none;
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .role-name {
      font-family: var(--font-display, 'Playfair Display', Georgia, serif);
      font-size: 0.975rem;
      font-weight: 700;
      color: var(--black);
      margin-bottom: 0.4rem;
    }

    .role-desc {
      font-size: 0.875rem;
      color: var(--mid);
      line-height: 1.65;
      margin-bottom: 1rem;
    }

    .role-volunteer-btn {
      display: inline-block;
      padding: 0.42rem 1rem;
      border-radius: 100px;
      border: 1.5px solid var(--primary-red);
      background: transparent;
      color: var(--primary-red);
      font-family: 'DM Sans', sans-serif;
      font-size: 0.8rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.18s, color 0.18s;
      text-decoration: none;
    }

    .role-volunteer-btn:hover { background: var(--red-dark); color: #fff; }


    /* ════════════════════════════
       DONOR PANEL
    ════════════════════════════ */
    .donor-note {
      font-size: 1rem;
      color: var(--mid);
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }

    .donor-options {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      margin-bottom: 1.5rem;
    }

    .donor-card {
      background: var(--card-bg);
      border: 1.5px solid var(--border);
      border-radius: 14px;
      padding: 1.5rem 1.25rem;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
    }

    .donor-card:hover { border-color: var(--primary-red); }
    .donor-card.selected { border-color: var(--primary-red); background: #fef2f2; }

    .donor-amount {
      font-family: var(--font-display, 'Playfair Display', Georgia, serif);
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--black);
      display: block;
    }

    .donor-impact {
      font-size: 0.82rem;
      color: var(--mid);
      margin-top: 0.35rem;
      line-height: 1.5;
      display: block;
    }

    /* ════════════════════════════
       RESPONSIVE
    ════════════════════════════ */

    /* ── Tablet landscape (≤ 1100px) ── */
    @media (max-width: 1100px) {
      .sidebar { padding: 2.5rem 2rem; }
      .content { padding: 2.5rem 2rem; }
      .wordmark { font-size: 3.2rem; }
      .page-heading { font-size: 2.1rem; }
      .roles-grid { grid-template-columns: 1fr; }
    }

    /* ── Tablet portrait (≤ 900px) ── */
    @media (max-width: 900px) {
      .page {
        grid-template-columns: 1fr;
        align-items: stretch;
        /* sidebar is now static so the whole page scrolls —
           margin-top already set on base rule, but restate to be safe */
        margin-top: var(--nav-h);
      }

      /* Sidebar becomes a full-width photo banner, not sticky */
      .sidebar {
        position: relative;   /* kills sticky, no top offset applied */
        top: 0;
        height: auto;
        min-height: 320px;
        padding: 3rem 2rem;
      }

      .content {
        padding: 2.5rem 2rem;
      }

      .stat-grid { grid-template-columns: repeat(4, 1fr); }
      .roles-grid { grid-template-columns: 1fr 1fr; }
      .donor-options { grid-template-columns: repeat(3, 1fr); }

   

    }

    /* ── Small phone (≤ 600px) ── */
    @media (max-width: 600px) {

      .sidebar {
        min-height: 260px;
        padding: 2.5rem 1.5rem;
      }

      .wordmark { font-size: 2.8rem; }
      .sidebar-tagline { font-size: 0.95rem; }
      .divider { margin: 1.25rem auto; }
      .stat-grid { grid-template-columns: 1fr 1fr; }

      .content { padding: 1.75rem 1.25rem; }
      .page-heading { font-size: 1.85rem; }

      .audience-tabs { gap: 0.4rem; }
      .tab-btn { font-size: 0.82rem; padding: 0.5rem 0.9rem; }

      .roles-grid { grid-template-columns: 1fr; }
      .donor-options { grid-template-columns: 1fr; }

      .simple-card { padding: 1.75rem 1.5rem; }
      .role-card { padding: 1.25rem; }

      .cta-btn { width: 100%; text-align: center; display: block; }

    }

    /* ── Extra small (≤ 380px) ── */
    @media (max-width: 380px) {
      .sidebar { min-height: 220px; padding: 2rem 1.25rem; }
      .wordmark { font-size: 2.3rem; }
      .page-heading { font-size: 1.6rem; }
      .tab-btn { font-size: 0.76rem; padding: 0.45rem 0.75rem; }
      .content { padding: 1.5rem 1rem; }
    }