:root {
    --bg: #050816;
    --bg-alt: #0b1020;
    --card: #111827;
    --accent: #7c3aed;
    --accent-soft: rgba(124, 58, 237, 0.15);
    --accent-strong: rgba(124, 58, 237, 0.25);
    --text-main: #f9fafb;
    --text-sub: #9ca3af;
    --border-subtle: #1f2937;
    --radius-lg: 18px;
    --radius-full: 999px;
    --shadow-soft: 0 20px 45px rgba(15, 23, 42, 0.6);
    --max-width: 1120px;
  }
  
  /* RESET */
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
      "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #111827 0, #020617 40%, #020617 100%);
    color: var(--text-main);
    line-height: 1.5;
  }
  
  /* LAYOUT */
  .container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  
  .section {
    padding: 5rem 0;
  }
  
  .section.alt {
    background: radial-gradient(circle at top, #020617 0, #020617 45%, #020617 100%);
  }
  
  /* NAVBAR */
  .navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: linear-gradient(
      to bottom,
      rgba(2, 6, 23, 0.92),
      rgba(2, 6, 23, 0.78),
      transparent
    );
    border-bottom: 1px solid rgba(15, 23, 42, 0.9);
  }
  
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 0;
    gap: 1.5rem;
  }
  
  .logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.08em;
    text-transform: lowercase;
  }
  
  .logo span {
    color: var(--accent);
  }
  
  .nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.9rem;
  }
  
  .nav-links a {
    color: var(--text-sub);
    text-decoration: none;
    padding: 0.4rem 0.2rem;
    position: relative;
  }
  
  .nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #7c3aed, #22d3ee);
    border-radius: 999px;
    transition: width 0.18s ease;
  }
  
  .nav-links a:hover {
    color: var(--text-main);
  }
  
  .nav-links a:hover::after {
    width: 100%;
  }
  
  .nav-cta {
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--accent);
    background: rgba(17, 24, 39, 0.9);
    color: var(--text-main);
    cursor: pointer;
    font-size: 0.85rem;
  }
  
  .nav-cta:hover {
    background: var(--accent-soft);
  }
  
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.4rem;
    cursor: pointer;
  }
  
  /* MOBILE NAV */
  .nav-mobile {
    display: none;
    flex-direction: column;
    background: #020617;
    border-bottom: 1px solid #111827;
  }
  
  .nav-mobile a {
    padding: 0.9rem 1.5rem;
    border-top: 1px solid #111827;
    text-decoration: none;
    color: var(--text-sub);
    font-size: 0.95rem;
  }
  
  .nav-mobile a:hover {
    background: #030712;
    color: var(--text-main);
  }
  
  /* HERO */
  .hero {
    padding: 4.5rem 0 3.5rem;
  }
  
  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: center;
  }
  
  .eyebrow {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #a5b4fc;
    margin-bottom: 0.65rem;
  }
  
  .hero h1 {
    font-size: clamp(2.4rem, 3.1vw + 1.6rem, 3.3rem);
    line-height: 1.1;
    margin-bottom: 1rem;
  }
  
  .hero-sub {
    color: var(--text-sub);
    max-width: 30rem;
    font-size: 0.98rem;
    margin-bottom: 1.4rem;
  }
  
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
  }
  
  .btn {
    border-radius: var(--radius-full);
    border: none;
    padding: 0.7rem 1.4rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
  }
  
  .btn.primary {
    background: linear-gradient(120deg, #7c3aed, #22d3ee);
    color: #f9fafb;
    box-shadow: var(--shadow-soft);
  }
  
  .btn.primary:hover {
    filter: brightness(1.05);
  }
  
  .btn.ghost {
    background: rgba(15, 23, 42, 0.85);
    color: var(--text-main);
    border: 1px solid #1f2937;
  }
  
  .btn.ghost:hover {
    background: #020617;
  }
  
  .btn.full {
    width: 100%;
  }
  
  .tiny-note {
    font-size: 0.8rem;
    color: var(--text-sub);
    margin-top: 0.25rem;
  }
  
  .hero-visual {
    display: flex;
    justify-content: center;
  }
  
  .hero-card {
    width: 100%;
    max-width: 360px;
    background: radial-gradient(circle at top left, #1f2937 0, #020617 50%);
    border-radius: 24px;
    padding: 1.3rem 1.4rem;
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: 0 26px 60px rgba(15, 23, 42, 0.85);
  }
  
  .hero-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.6);
    font-size: 0.75rem;
    color: #e5e7eb;
    margin-bottom: 0.9rem;
  }
  
  .hero-card h2 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
  }
  
  .hero-card p {
    color: var(--text-sub);
    font-size: 0.9rem;
  }
  
  .hero-stats {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.3rem;
  }
  
  .stat-number {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
  }
  
  .stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-sub);
  }
  
  /* LOGOS */
  .logos {
    padding: 2.5rem 0 3rem;
  }
  
  .logos-title {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-bottom: 1.25rem;
  }
  
  .logos-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: #a5b4fc;
  }
  
  .logos-row span {
    opacity: 0.8;
  }
  
  .logos-row-secondary {
    margin-top: 0.75rem;
  }
  
  /* SECTION HEADER */
  .section-header {
    text-align: center;
    max-width: 540px;
    margin: 0 auto 2.5rem;
  }
  
  .section-header h2 {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
  }
  
  .section-header p {
    color: var(--text-sub);
    font-size: 0.95rem;
  }
  
  /* FEATURE GRID */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem;
  }
  
  .feature-card {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), #020617);
    border-radius: var(--radius-lg);
    padding: 1.3rem;
    border: 1px solid #1f2937;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.7);
  }
  
  .feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
  }
  
  .feature-card p {
    color: var(--text-sub);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
  }
  
  .pill {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.7rem;
    margin-right: 0.4rem;
    margin-bottom: 0.3rem;
    border-radius: 999px;
    font-size: 0.75rem;
    background: var(--accent-soft);
    color: #e5e7eb;
  }
  
  /* TUTORS */
  .tutor-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem;
  }
  
  .tutor-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 1.4rem;
    border: 1px solid var(--border-subtle);
  }
  
  .tutor-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
  }
  
  .tutor-card p {
    color: var(--text-sub);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
  }
  
  .tutor-card ul {
    list-style: none;
    padding-left: 0;
  }
  
  .tutor-card li {
    font-size: 0.86rem;
    color: #e5e7eb;
    margin-bottom: 0.3rem;
  }
  
  /* PRICING */
  .pricing-toggle {
    display: inline-flex;
    border-radius: var(--radius-full);
    padding: 0.15rem;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid #1f2937;
    margin: 0 auto 2rem;
  }
  
  .toggle-btn {
    border: none;
    background: transparent;
    color: var(--text-sub);
    font-size: 0.85rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    cursor: pointer;
  }
  
  .toggle-btn.active {
    background: var(--accent-strong);
    color: #e5e7eb;
  }
  
  .pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem;
  }
  
  .price-card {
    background: var(--card);
    border-radius: 22px;
    border: 1px solid #1f2937;
    padding: 1.6rem 1.4rem;
    display: none;
    flex-direction: column;
    gap: 0.8rem;
    box-shadow: var(--shadow-soft);
  }
  
  .price-card.active {
    display: flex;
  }
  
  .price {
    font-size: 0.95rem;
  }
  
  .price-main {
    font-size: 1.7rem;
    font-weight: 700;
  }
  
  .price-note {
    color: var(--text-sub);
    font-size: 0.9rem;
  }
  
  .price-card ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0.3rem;
  }
  
  .price-card li {
    font-size: 0.86rem;
    color: #e5e7eb;
    margin-bottom: 0.2rem;
  }
  
  /* FAQ */
  .faq-list {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
  }
  
  .faq-item {
    border-radius: 16px;
    background: #020617;
    border: 1px solid #1f2937;
    overflow: hidden;
  }
  
  .faq-question {
    width: 100%;
    background: transparent;
    color: var(--text-main);
    border: none;
    padding: 0.9rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 0.95rem;
  }
  
  .faq-icon {
    margin-left: 1rem;
    font-size: 1rem;
    color: var(--text-sub);
  }
  
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 1rem;
    transition: max-height 0.2s ease, padding-bottom 0.2s ease;
  }
  
  .faq-answer p {
    color: var(--text-sub);
    font-size: 0.9rem;
    padding: 0.4rem 0 0.8rem;
  }
  
  .faq-item.open .faq-answer {
    max-height: 180px;
    padding-bottom: 0.6rem;
  }
  
  .faq-item.open .faq-icon {
    transform: rotate(45deg);
  }
  
  /* FOOTER */
  .footer {
    background: #020617;
    border-top: 1px solid #111827;
    padding: 3rem 0 1.5rem;
    margin-top: 2rem;
  }
  
  .footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
  }
  
  .footer-brand p {
    color: var(--text-sub);
    font-size: 0.9rem;
    max-width: 280px;
    margin-top: 0.6rem;
  }
  
  .footer-links {
    display: flex;
    gap: 3rem;
  }
  
  .footer-links h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #9ca3af;
    margin-bottom: 0.6rem;
  }
  
  .footer-links a {
    display: block;
    font-size: 0.86rem;
    color: var(--text-sub);
    text-decoration: none;
    margin-bottom: 0.25rem;
  }
  
  .footer-links a:hover {
    color: var(--text-main);
  }
  
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #111827;
    padding-top: 0.8rem;
    font-size: 0.8rem;
    color: var(--text-sub);
  }
  
  .footer-bottom-links a {
    margin-left: 1rem;
    color: var(--text-sub);
    text-decoration: none;
  }
  
  .footer-bottom-links a:hover {
    color: var(--text-main);
  }
  
  /* RESPONSIVE */
  @media (max-width: 900px) {
    .hero-inner {
      grid-template-columns: minmax(0, 1fr);
    }
  
    .hero-visual {
      order: -1;
    }
  
    .feature-grid,
    .tutor-grid,
    .pricing-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  
    .footer-inner {
      flex-direction: column;
    }
  }
  
  @media (max-width: 700px) {
    .nav-links,
    .nav-cta {
      display: none;
    }
  
    .nav-toggle {
      display: block;
    }
  
    .section {
      padding: 4rem 0;
    }
  
    .feature-grid,
    .tutor-grid,
    .pricing-grid {
      grid-template-columns: minmax(0, 1fr);
    }
  
    .hero {
      padding-top: 3.5rem;
    }
  
    .hero-card {
      max-width: 100%;
    }
  }
  /* LOGOS / MARQUEE */
    .logos {
        padding: 2.5rem 0 3rem;
    }
    
    .logos-title {
        text-align: center;
        font-size: 0.9rem;
        color: var(--text-sub);
        margin-bottom: 1.25rem;
    }
    
    /* Container that hides overflow */
    .logos-marquee {
        position: relative;
        overflow: hidden;
        width: 100%;
    }
    
    /* Track that actually scrolls */
    .logos-track {
        display: inline-flex;
        gap: 3rem;
        white-space: nowrap;
        animation: logos-scroll 35s linear infinite;
    }
    
    /* Style each item */
    .logos-marquee span {
        font-size: 0.8rem;
        text-transform: uppercase;
        letter-spacing: 0.16em;
        color: #a5b4fc;
        opacity: .85;
    }
    
    /* Optional: pause on hover */
    /*.logos-marquee:hover .logos-track {
        animation-play-state: paused;
    }
    */
    
    /* Keyframes for scrolling */
    @keyframes logos-scroll {
        from {
        transform: translateX(0);
        }
        to {
        transform: translateX(-50%);
        }
    }



        /* DISABLED PRICE CARD */
    .price-card.disabled {
        opacity: 0.35;
        filter: grayscale(100%);
        position: relative;
        pointer-events: none; /* disables clicking */
    }
    
    /* Red slash across the card */
    .disabled-slash {
        position: absolute;
        top: 0;
        left: 0;
        width: 140%;
        height: 4px;
        background: red;
        transform: rotate(-35deg);
        transform-origin: left;
        pointer-events: none;
    }


    /* header row inside feature cards (avatar + title) */
    .feature-header {
        display: flex;
        align-items: center;
        gap: 0.9rem;
        margin-bottom: 0.7rem;
    }
    
    /* round avatar */
    .feature-avatar {
        width: 44px;
        height: 44px;
        border-radius: 999px;
        overflow: hidden;
        border: 1px solid #4b5563;
        background: radial-gradient(circle at 30% 20%, #4c1d95, #020617);
        flex-shrink: 0;
    }
    
    .feature-avatar img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }
    
    /* small line under the title for coach info */
    .feature-coach {
        font-size: 0.78rem;
        color: var(--text-sub);
        margin-top: 0.1rem;
    }
    
    /* tighten main paragraph now that header is taller */
    .feature-card > p {
        margin-bottom: 0.8rem;
    }

    /* TUTORS SECTION */
    .tutor-grid {
        display: grid;
        grid-template-columns: minmax(0, 1fr); /* one column */
        gap: 1.4rem;
    }
    
    .tutor-card {
        background: var(--card);
        border-radius: 24px;
        padding: 1.6rem 1.5rem;
        border: 1px solid var(--border-subtle);
        box-shadow: 0 16px 40px rgba(15, 23, 42, 0.7);
    }
    
    .tutor-avatar {
        width: 56px;
        height: 56px;
        border-radius: 999px;
        overflow: hidden;
        border: 2px solid #4c1d95;
        margin-bottom: 0.8rem;
    }
    
    .tutor-avatar img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }
    
    .tutor-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
    }
    
    .tutor-card p {
        color: var(--text-sub);
        font-size: 0.9rem;
        margin-bottom: 0.9rem;
    }
    
    /* optional: 2 columns on big screens later */
    @media (min-width: 900px) {
        .tutor-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        }
    }
    
    
    .tutor-card {
        background: var(--card);
        border-radius: 24px;
        padding: 1.3rem 1.2rem;
        border: 1px solid var(--border-subtle);
        box-shadow: 0 16px 40px rgba(15, 23, 42, 0.7);
      
        max-width: 360px;
        margin: 0 auto;
      }


          /* CONTACT SECTION */
    .contact-form {
      max-width: 480px;
      margin: 2rem auto 0;
      padding: 1.5rem 1.75rem;
      border-radius: 24px;
      background: #020617;
      border: 1px solid #1f2937;
      box-shadow: 0 22px 50px rgba(15, 23, 42, 0.95);
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .contact-form .form-group {
      margin-bottom: 0.25rem;
    }

    .contact-form label {
      display: block;
      font-size: 0.85rem;
      margin-bottom: 0.3rem;
      color: #e5e7eb;
    }

    .contact-form input,
    .contact-form textarea {
      width: 100%;
      border-radius: 12px;
      border: 1px solid #1f2937;
      background: #020617;
      padding: 0.6rem 0.7rem;
      font-size: 0.9rem;
      color: #f9fafb;
    }

    .contact-form input:focus,
    .contact-form textarea:focus {
      outline: none;
      border-color: #7c3aed;
      box-shadow: 0 0 0 1px rgba(124, 58, 237, 0.5);
    }

    .contact-submit {
      align-self: flex-end;         /* button hugs the right edge */
      padding-inline: 1.6rem;      /* a bit wider than normal */
      margin-top: 0.25rem;
    }

    /* feedback text */
    .form-error {
      min-height: 0.9rem;
      font-size: 0.8rem;
      color: #f97373;
    }

    .form-success {
      min-height: 0.9rem;
      font-size: 0.8rem;
      color: #4ade80;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .logo span {
      font-size: 1.3rem;
      font-weight: 700;
      color: white;
    }
    .logo img {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      object-fit: cover;
    }