/* Psychological Design Variables – Guillain‑Barré Edition */
    :root {
      --primary: #00c8ff;
      --secondary: #7b2dff;
      --accent: #ff2d7b;
      --dark: #0a0e17;
      --darker: #05080f;
      --light: #f0f5ff;
      --soft-gray: #8a9bb8;
      --text-light: #ffffff;
      --text-muted: #b0b0b0;
      --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
      --border-radius: 12px;
      --border-radius-sm: 8px;
      --membrane-medium: rgba(123, 45, 255, 0.3);
      --glow: 0 0 20px rgba(0, 200, 255, 0.3);
      --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.1);
      --shadow-medium: 0 12px 48px rgba(0, 0, 0, 0.15);
      --gradient-primary: linear-gradient(135deg, #00c8ff 0%, #7b2dff 100%);
      --gradient-dark: linear-gradient(135deg, #05080f 0%, #0a0e17 100%);
    }

    /* Calming Background Layers (unchanged structure) */
    .particle-network {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
      background: 
        radial-gradient(circle at 20% 80%, rgba(123, 45, 255, 0.08) 0%, transparent 65%),
        radial-gradient(circle at 80% 20%, rgba(0, 200, 255, 0.08) 0%, transparent 65%),
        radial-gradient(circle at 40% 40%, rgba(255, 45, 123, 0.05) 0%, transparent 65%);
      opacity: 0.98;
    }

    .background-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
      background: 
        radial-gradient(circle at 20% 80%, rgba(123, 45, 255, 0.08) 0%, transparent 85%),
        radial-gradient(circle at 80% 20%, rgba(0, 200, 255, 0.08) 0%, transparent 85%),
        radial-gradient(circle at 40% 40%, rgba(255, 45, 123, 0.05) 0%, transparent 85%);
    }

    .glow-element {
      position: fixed;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0.12;
      z-index: -1;
      pointer-events: none;
    }

    .glow-center {
      width: 400px;
      height: 400px;
      background: var(--primary);
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      animation: gentle-pulse 20s ease-in-out infinite;
    }

    .glow-corner-1 {
      width: 300px;
      height: 300px;
      background: var(--secondary);
      top: -100px;
      left: -100px;
      animation: gentle-float 25s ease-in-out infinite;
    }

    .glow-corner-2 {
      width: 250px;
      height: 250px;
      background: var(--accent);
      bottom: -80px;
      right: -80px;
      animation: gentle-float 30s ease-in-out infinite reverse;
    }

    @keyframes gentle-pulse {
      0%, 100% { opacity: 0.08; transform: translate(-50%, -50%) scale(1); }
      50% { opacity: 0.15; transform: translate(-50%, -50%) scale(1.05); }
    }
    @keyframes gentle-float {
      0%, 100% { transform: translate(0, 0) rotate(0deg); }
      33% { transform: translate(20px, 20px) rotate(120deg); }
      66% { transform: translate(-15px, 15px) rotate(240deg); }
    }

    /* Base Reset & Typography */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

  

    a {
      text-decoration: none;
      color: inherit;
    }


    /* Hero Section – Complete Redesign for GBS */
    .gbs-hero {
      position: relative;
      width: 100%;
      min-height: 85vh;
      display: flex;
      align-items: center;
      margin-bottom: 1rem;
    }

    /* VIDEO BACKGROUND (left side) – holder as requested */
    .hero-video-bg {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 1;
      overflow: hidden;
      border-radius: var(--border-radius);
    }
    .hero-video-bg video {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;  /* subtle, content remains readable */
      pointer-events: none;
    }
    /* fallback if video not loaded / placeholder */
    .video-placeholder-bg {
      background: linear-gradient(145deg, #0b121f, #03060a);
      width: 100%;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }
    .video-placeholder-bg i {
      font-size: 5rem;
      color: rgba(0,200,255,0.2);
      margin-bottom: 1rem;
    }
    .video-placeholder-bg span {
      color: rgba(255,255,255,0.2);
      letter-spacing: 4px;
    }

    /* Hero inner layout — left text, right image holder */
    .hero-container {
      position: relative;
      z-index: 3;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      align-items: center;
      width: 100%;
      padding: 2rem 0;
    }

    .hero-left {
      padding-right: 1.5rem;
    }

    .hero-badge {
      display: inline-block;
      background: rgba(0,200,255,0.12);
      border-left: 4px solid var(--primary);
      padding: 0.5rem 1.2rem;
      border-radius: 0 30px 30px 0;
      font-size: 0.85rem;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 1.8rem;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }

    .hero-title {
      font-size: clamp(2.2rem, 5vw, 3.4rem);
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 1.5rem;
      background: linear-gradient(to right, #fff, #cce6ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-description {
      font-size: 1.2rem;
      color: rgba(240,245,255,0.9);
      margin-bottom: 2.2rem;
      max-width: 550px;
    }

    .therapy-flags {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 2rem;
    }

    .therapy-flag {
      background: rgba(123,45,255,0.18);
      backdrop-filter: blur(4px);
      padding: 0.4rem 1.2rem;
      border-radius: 40px;
      border: 1px solid rgba(0,200,255,0.3);
      font-size: 0.9rem;
      font-weight: 500;
      color: #e0f0ff;
    }

    /* Right side image holder */
    .hero-image-holder {
      background: linear-gradient(145deg, #131e2c, #0a101a);
      border-radius: 20px;
      height: 420px;
      width: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border: 1px solid rgba(0,200,255,0.25);
      box-shadow: 0 25px 35px -10px rgba(0,0,0,0.5);
      position: relative;
      overflow: hidden;
    }
    .hero-image-holder i {
      font-size: 5rem;
      color: var(--primary);
      opacity: 0.5;
      margin-bottom: 1.2rem;
    }
    .hero-image-holder p {
      color: var(--soft-gray);
      font-size: 1.1rem;
      letter-spacing: 2px;
    }
    .image-credit {
      position: absolute;
      bottom: 15px;
      right: 20px;
      font-size: 0.7rem;
      color: rgba(255,255,255,0.25);
    }

    /* Section: Paragraph left / Patient Guide (downloadable lead magnet) */
    .guide-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      margin: 5rem 0;
      background: rgba(10,14,23,0.4);
      backdrop-filter: blur(8px);
      padding: 2.5rem;
      border-radius: 32px;
      border: 1px solid rgba(255,255,255,0.05);
    }

    .guide-text p {
      font-size: 1.18rem;
      color: #d0def0;
      margin-bottom: 1.5rem;
    }

    .lead-magnet-card {
      background: radial-gradient(circle at 30% 30%, rgba(0,200,255,0.08), rgba(123,45,255,0.08));
      border-radius: 24px;
      padding: 2rem 2rem 2.2rem;
      border: 1px solid rgba(0,200,255,0.25);
      backdrop-filter: blur(6px);
    }

    .magnet-icon {
      font-size: 2.8rem;
      color: var(--primary);
      margin-bottom: 0.8rem;
    }

    .magnet-title {
      font-size: 1.9rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
    }

    .magnet-description {
      color: #b0c8e0;
      margin-bottom: 1.8rem;
      font-size: 1rem;
    }

    .email-form {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .email-input-group {
      display: flex;
      background: rgba(255,255,255,0.05);
      border-radius: 60px;
      border: 1px solid rgba(255,255,255,0.15);
      overflow: hidden;
    }
    .email-input-group i {
      padding: 0 0 0 1.2rem;
      align-self: center;
      color: var(--soft-gray);
    }
    .email-input-group input {
      background: transparent;
      border: none;
      padding: 1rem 0.8rem;
      width: 100%;
      color: white;
      font-size: 1rem;
    }
    .email-input-group input::placeholder {
      color: rgba(200,215,230,0.5);
      font-weight: 300;
    }
    .btn-download {
      background: var(--gradient-primary);
      border: none;
      padding: 1rem;
      border-radius: 60px;
      color: white;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.8rem;
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid rgba(255,255,255,0.2);
    }
    .btn-download:hover {
      box-shadow: 0 8px 18px rgba(0,200,255,0.4);
      transform: scale(1.02);
    }
    .small-note-magnet {
      font-size: 0.75rem;
      color: rgba(200,220,240,0.6);
      margin-top: 0.8rem;
    }

    /* Paragraph + Image holder on right (second objective paragraph) */
    .nerve-repair-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
      margin: 4rem 0;
    }
    .nerve-text {
      font-size: 1.18rem;
      color: #e0eaff;
    }
    .nerve-image-holder {
      background: linear-gradient(145deg, #101a26, #080d14);
      border-radius: 20px;
      height: 320px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border: 1px solid rgba(123,45,255,0.4);
      box-shadow: 0 20px 30px -10px black;
    }
    .nerve-image-holder i {
      font-size: 4rem;
      color: var(--secondary);
      opacity: 0.6;
    }

    /* content divider (keeping delight) */
    .content-divider {
      border: none;
      height: 2px;
      background: linear-gradient(90deg, transparent 0%, rgba(0,200,255,0.3) 25%, rgba(123,45,255,0.3) 50%, rgba(0,200,255,0.3) 75%, transparent 100%);
      margin: 3rem auto;
      width: 80%;
      position: relative;
    }
    .content-divider::before,
    .content-divider::after {
      content: "";
      position: absolute;
      width: 12px;
      height: 12px;
      background: var(--primary);
      border-radius: 50%;
      top: 50%;
      transform: translateY(-50%);
      animation: subtle-sparkle 4s infinite;
    }
    .content-divider::before {
      left: 25%;
      animation-delay: 0.5s;
    }
    .content-divider::after {
      right: 25%;
      animation-delay: 1.5s;
    }
    @keyframes subtle-sparkle {
      0%,100% { opacity: 0.4; }
      50% { opacity: 1; box-shadow: 0 0 10px var(--primary); }
    }