/* ===== RESET & BASE ===== */
      *,
      *::before,
      *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
      }
      html {
        scroll-behavior: smooth;
        font-size: 16px;
      }
      body {
        font-family: "Nunito", sans-serif;
        background: #f0f9ff;
        color: #1e293b;
        line-height: 1.6;
      }

      /* ===== CSS VARIABLES ===== */
      :root {
        --blue-50: #f0f9ff;
        --blue-100: #e0f2fe;
        --blue-200: #bae6fd;
        --blue-400: #38bdf8;
        --blue-500: #0ea5e9;
        --blue-600: #0284c7;
        --blue-700: #0369a1;
        --blue-800: #075985;
        --amber-100: #fef3c7;
        --amber-500: #f59e0b;
        --amber-600: #d97706;
        --green-100: #dcfce7;
        --green-700: #166534;
        --purple-100: #ede9fe;
        --purple-700: #6d28d9;
        --purple-800: #5b21b6;
        --slate-400: #94a3b8;
        --slate-500: #64748b;
        --slate-600: #475569;
        --radius-sm: 12px;
        --radius-md: 20px;
        --radius-lg: 28px;
        --radius-xl: 36px;
        --shadow-sm: 0 4px 16px rgba(14, 165, 233, 0.08);
        --shadow-md: 0 8px 28px rgba(14, 165, 233, 0.14);
        --shadow-lg: 0 20px 48px rgba(14, 165, 233, 0.2);
      }

      /* ===== TYPOGRAPHY ===== */
      .font-jakarta {
        font-family: "Plus Jakarta Sans", sans-serif;
      }
      .section-title {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: clamp(24px, 4vw, 40px);
        color: var(--blue-800);
        line-height: 1.15;
        margin-bottom: 12px;
      }
      .section-sub {
        font-size: 17px;
        color: var(--slate-500);
        line-height: 1.65;
        margin-bottom: 48px;
        max-width: 560px;
        margin-left: auto;
        margin-right: auto;
      }

      /* ===== LAYOUT ===== */
      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
      }
      .section {
        padding: 96px 0;
      }
      .section-white {
        background: white;
      }
      .section-cream {
        background: #fffbeb;
      }
      .text-center {
        text-align: center;
      }

      /* ===== BUTTONS ===== */
      .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        border: none;
        border-radius: 50px;
        cursor: pointer;
        font-family: "Nunito", sans-serif;
        font-weight: 700;
        font-size: 15px;
        text-decoration: none;
        transition: all 0.25s ease;
        white-space: nowrap;
      }
      .btn-primary {
        background: linear-gradient(135deg, #0ea5e9, #0369a1);
        color: white;
        padding: 14px 32px;
        box-shadow: 0 4px 20px rgba(14, 165, 233, 0.35);
      }
      .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(14, 165, 233, 0.48);
      }
      .btn-outline {
        background: transparent;
        color: #0369a1;
        border: 2px solid #0369a1;
        padding: 12px 28px;
      }
      .btn-outline:hover {
        background: #0369a1;
        color: white;
      }
      .btn-amber {
        background: linear-gradient(135deg, #f59e0b, #d97706);
        color: white;
        padding: 14px 32px;
        box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
      }
      .btn-amber:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(245, 158, 11, 0.48);
      }
      .btn-purple {
        background: linear-gradient(135deg, #7c3aed, #5b21b6);
        color: white;
        padding: 14px 32px;
        box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
      }
      .btn-purple:hover {
        transform: translateY(-2px);
      }
      .btn-white {
        background: white;
        color: #0369a1;
        padding: 14px 28px;
      }
      .btn-white:hover {
        background: #f0f9ff;
      }
      .btn-sm {
        padding: 10px 20px;
        font-size: 14px;
      }
      .btn-full {
        width: 100%;
        justify-content: center;
      }

      /* ===== BADGE ===== */
      .badge {
        display: inline-flex;
        align-items: center;
        padding: 4px 13px;
        border-radius: 50px;
        font-size: 11px;
        font-weight: 700;
      }
      .badge-blue {
        background: var(--blue-100);
        color: var(--blue-700);
      }
      .badge-amber {
        background: var(--amber-100);
        color: #92400e;
      }
      .badge-green {
        background: var(--green-100);
        color: var(--green-700);
      }
      .badge-purple {
        background: var(--purple-100);
        color: var(--purple-700);
      }
      .badge-slate {
        background: #f1f5f9;
        color: var(--slate-600);
      }

      /* ===== HEADER ===== */
      #header {
        position: sticky;
        top: 0;
        z-index: 200;
        background: rgba(240, 249, 255, 0.92);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid transparent;
        transition:
          border-color 0.3s,
          background 0.3s;
      }
      #header.scrolled {
        border-color: var(--blue-200);
        background: rgba(240, 249, 255, 0.97);
      }
      .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 24px;
        max-width: 1200px;
        margin: 0 auto;
        gap: 24px;
      }
      .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        text-decoration: none;
        cursor: pointer;
      }
      .logo-icon {
        width: 42px;
        height: 42px;
        border-radius: 14px;
        background: linear-gradient(135deg, #38bdf8, #0369a1);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
      }
      .logo-text {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 900;
        font-size: 22px;
        color: var(--blue-800);
        letter-spacing: -0.02em;
      }
      .logo-text span {
        color: var(--blue-500);
      }
      nav {
        display: flex;
        gap: 32px;
      }
      .nav-link {
        color: var(--blue-700);
        font-weight: 600;
        font-size: 15px;
        text-decoration: none;
        padding-bottom: 4px;
        border-bottom: 2px solid transparent;
        cursor: pointer;
        background: none;
        border-top: none;
        border-left: none;
        border-right: none;
        font-family: "Nunito", sans-serif;
        transition:
          color 0.2s,
          border-color 0.2s;
      }
      .nav-link:hover {
        color: var(--blue-500);
        border-bottom-color: var(--blue-500);
      }
      .hamburger {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: 6px;
        border-radius: 8px;
      }
      .mobile-nav {
        display: none;
        background: white;
        border-top: 1px solid var(--blue-100);
        padding: 16px 24px;
        flex-direction: column;
        gap: 4px;
      }
      .mobile-nav.open {
        display: flex;
      }
      .mobile-nav .nav-link {
        padding: 10px 0;
        font-size: 16px;
        border-bottom: 1px solid var(--blue-100) !important;
      }

      /* ===== HERO ===== */
      #hero {
        padding: 80px 0 100px;
      }
      .hero-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 56px;
        align-items: center;
      }
      .hero-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--blue-100);
        border-radius: 50px;
        padding: 8px 18px;
        margin-bottom: 24px;
      }
      .hero-tag span {
        font-size: 13px;
        font-weight: 700;
        color: var(--blue-700);
      }
      .hero-title {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 900;
        font-size: clamp(28px, 4.5vw, 52px);
        color: var(--blue-800);
        line-height: 1.1;
        margin-bottom: 22px;
        letter-spacing: -0.02em;
      }
      .hero-title em {
        font-style: normal;
        color: var(--blue-500);
      }
      .hero-desc {
        font-size: 17px;
        color: var(--slate-600);
        line-height: 1.75;
        margin-bottom: 36px;
        max-width: 480px;
      }
      .hero-btns {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        margin-bottom: 48px;
      }
      .hero-stats {
        display: flex;
        gap: 36px;
      }
      .stat-num {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 28px;
        color: var(--blue-700);
      }
      .stat-label {
        font-size: 13px;
        color: var(--slate-400);
        font-weight: 600;
      }

      /* Hero illustration */
      .hero-illustration {
        position: relative;
        animation: float 3s ease-in-out infinite;
      }
      .hero-card-wrap {
        background: linear-gradient(
          145deg,
          #cae8fa 0%,
          #ddf0fc 40%,
          #fef9e7 100%
        );
        border-radius: var(--radius-xl);
        padding: 32px 24px 48px;
        box-shadow: 0 24px 60px rgba(14, 165, 233, 0.2);
        display: flex;
        flex-direction: column;
        gap: 14px;
        position: relative;
      }
      .chat-card {
        background: white;
        border-radius: var(--radius-md);
        padding: 18px 20px;
        box-shadow: 0 4px 18px rgba(0, 0, 0, 0.07);
      }
      .chat-card-blue {
        background: linear-gradient(135deg, #2da8e0, #1a6fb8);
        margin-left: 20px;
        box-shadow: 0 6px 22px rgba(14, 165, 233, 0.35);
      }
      .chat-avatar {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        flex-shrink: 0;
      }
      .chat-user {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 12px;
      }
      .chat-name {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 14px;
      }
      .chat-sub {
        font-size: 12px;
        font-weight: 500;
        opacity: 0.7;
      }
      .chat-text {
        font-size: 13.5px;
        line-height: 1.6;
      }
      .live-bar {
        background: white;
        border-radius: 16px;
        padding: 13px 18px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        box-shadow: 0 3px 14px rgba(0, 0, 0, 0.06);
      }
      .live-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: #22c55e;
        box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
        flex-shrink: 0;
      }
      .live-text {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 13px;
        font-weight: 700;
        color: var(--blue-800);
      }
      .live-badge {
        font-size: 12px;
        color: var(--blue-500);
        font-weight: 800;
        background: var(--blue-100);
        padding: 4px 14px;
        border-radius: 50px;
        letter-spacing: 0.04em;
      }
      .float-badge {
        position: absolute;
        border-radius: 16px;
        padding: 10px 18px;
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 700;
        z-index: 2;
      }
      .float-challenge {
        top: -14px;
        right: 20px;
        background: #fef3c7;
        border: 2px solid #fde68a;
        color: #92400e;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
      }
      .float-success {
        bottom: -16px;
        left: 20px;
        background: white;
        border: 1.5px solid #bbf7d0;
        color: #166534;
        box-shadow: 0 6px 20px rgba(14, 165, 233, 0.15);
      }
      .float-success-icon {
        width: 20px;
        height: 20px;
        border-radius: 6px;
        background: #22c55e;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        color: white;
        flex-shrink: 0;
      }

      /* ===== BENEFITS ===== */
      .benefits-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 24px;
      }
      .benefit-card {
        background: white;
        border-radius: 24px;
        padding: 32px 28px;
        box-shadow: var(--shadow-sm);
        border: 1.5px solid var(--blue-100);
        transition:
          transform 0.25s,
          box-shadow 0.25s;
      }
      .benefit-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-lg);
      }
      .benefit-icon {
        width: 60px;
        height: 60px;
        border-radius: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 20px;
      }
      .benefit-title {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 18px;
        color: var(--blue-800);
        margin-bottom: 10px;
      }
      .benefit-desc {
        color: var(--slate-500);
        line-height: 1.65;
        font-size: 15px;
      }

      /* ===== FIND PARTNER ===== */
      .filter-bar {
        background: white;
        border-radius: 24px;
        padding: 28px;
        margin-bottom: 36px;
        box-shadow: var(--shadow-sm);
        border: 1.5px solid var(--blue-100);
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 16px;
      }
      .filter-label {
        font-size: 12px;
        font-weight: 700;
        color: var(--blue-700);
        margin-bottom: 8px;
        text-transform: uppercase;
        letter-spacing: 0.05em;
      }
      select {
        font-family: "Nunito", sans-serif;
        border: 2px solid var(--blue-200);
        border-radius: var(--radius-sm);
        padding: 10px 14px;
        font-size: 14px;
        color: #0c4a6e;
        background: white;
        outline: none;
        transition: border-color 0.2s;
        width: 100%;
        cursor: pointer;
      }
      select:focus {
        border-color: var(--blue-500);
        box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
      }
      .profiles-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 20px;
      }
      .profile-card {
        background: white;
        border-radius: 20px;
        padding: 24px;
        box-shadow: var(--shadow-sm);
        border: 1.5px solid var(--blue-100);
        transition:
          transform 0.25s,
          box-shadow 0.25s;
      }
      .profile-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
      }
      .profile-top {
        display: flex;
        gap: 14px;
        align-items: center;
        margin-bottom: 16px;
      }
      .profile-avatar {
        width: 52px;
        height: 52px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 18px;
        flex-shrink: 0;
      }
      .profile-name {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 16px;
        color: var(--blue-800);
        margin-bottom: 4px;
      }
      .profile-school {
        font-size: 13px;
        color: var(--slate-400);
        font-weight: 600;
      }
      .profile-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        justify-content: center;
        margin-bottom: 16px;
      }
      .profile-goal {
        font-size: 14px;
        color: var(--slate-500);
        line-height: 1.6;
        background: #f8fafc;
        border-radius: 12px;
        padding: 10px 14px;
        margin-bottom: 16px;
      }
      .no-results {
        grid-column: 1/-1;
        text-align: center;
        padding: 60px 0;
        color: var(--slate-400);
      }
      .no-results-icon {
        font-size: 40px;
        margin-bottom: 12px;
      }

      /* ===== RESOURCES ===== */
      .resources-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
      }
      .challenge-card {
        background: linear-gradient(135deg, #0369a1, #0ea5e9);
        border-radius: var(--radius-lg);
        padding: 40px;
        color: white;
        position: relative;
        overflow: hidden;
      }
      .challenge-card::before {
        content: "";
        position: absolute;
        top: -30px;
        right: -30px;
        width: 120px;
        height: 120px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
      }
      .challenge-card::after {
        content: "";
        position: absolute;
        bottom: -20px;
        right: 40px;
        width: 80px;
        height: 80px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.06);
      }
      .resource-icon {
        width: 56px;
        height: 56px;
        border-radius: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 20px;
      }
      .resource-card {
        background: #fffbeb;
        border-radius: var(--radius-lg);
        padding: 40px;
        border: 2px solid #fde68a;
      }
      .resource-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: white;
        border-radius: 12px;
        padding: 12px 16px;
        border: 1px solid #fde68a;
      }
      .resource-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-bottom: 28px;
      }
      .challenge-stats {
        display: flex;
        gap: 28px;
        margin-top: 28px;
      }
      .mini-game {
        margin-top: 24px;
        background: linear-gradient(135deg, #ede9fe, #e0f2fe);
        border-radius: 24px;
        padding: 32px 40px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 24px;
        border: 1.5px solid #c4b5fd;
      }

      /* ===== FOOTER ===== */
      footer {
        background: var(--blue-800);
        padding: 80px 0 40px;
      }
      .footer-grid {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 48px;
        margin-bottom: 60px;
      }
      .footer-logo-text {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 900;
        font-size: 22px;
        color: white;
      }
      .footer-logo-text span {
        color: #38bdf8;
      }
      .footer-desc {
        color: #bae6fd;
        line-height: 1.7;
        font-size: 15px;
        margin-bottom: 16px;
      }
      .footer-slogan {
        color: #7dd3fc;
        font-size: 13px;
        font-style: italic;
      }
      .footer-heading {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 16px;
        color: white;
        margin-bottom: 20px;
      }
      .team-item {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 10px;
      }
      .team-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #38bdf8;
        flex-shrink: 0;
      }
      .team-name {
        font-size: 14px;
        color: #bae6fd;
        font-weight: 600;
      }
      .footer-input {
        font-family: "Nunito", sans-serif;
        background: rgba(255, 255, 255, 0.1) !important;
        border: 1.5px solid rgba(255, 255, 255, 0.2) !important;
        color: white !important;
        border-radius: 12px;
        padding: 10px 16px;
        font-size: 14px;
        outline: none;
        width: 100%;
        margin-bottom: 10px;
        transition: border-color 0.2s;
      }
      .footer-input::placeholder {
        color: rgba(255, 255, 255, 0.45);
      }
      .footer-input:focus {
        border-color: #38bdf8 !important;
      }
      .footer-textarea {
        resize: none;
        height: 90px;
        font-family: "Nunito", sans-serif;
        background: rgba(255, 255, 255, 0.1) !important;
        border: 1.5px solid rgba(255, 255, 255, 0.2) !important;
        color: white !important;
        border-radius: 12px;
        padding: 10px 16px;
        font-size: 14px;
        outline: none;
        width: 100%;
        margin-bottom: 10px;
        transition: border-color 0.2s;
      }
      .footer-textarea::placeholder {
        color: rgba(255, 255, 255, 0.45);
      }
      .footer-textarea:focus {
        border-color: #38bdf8 !important;
      }
      .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        padding-top: 32px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 16px;
      }
      .footer-copy {
        color: #7dd3fc;
        font-size: 14px;
      }
      .footer-links {
        display: flex;
        gap: 20px;
      }
      .footer-link {
        font-size: 13px;
        color: #7dd3fc;
        font-weight: 600;
        cursor: pointer;
        background: none;
        border: none;
        font-family: "Nunito", sans-serif;
      }
      .footer-link:hover {
        color: white;
      }
      .contact-success {
        background: rgba(56, 189, 248, 0.15);
        border-radius: 16px;
        padding: 24px;
        text-align: center;
        display: none;
      }
      .contact-success.show {
        display: block;
      }
      .contact-form.hide {
        display: none;
      }

      /* ===== MODAL ===== */
      .modal-overlay {
        position: fixed;
        inset: 0;
        background: rgba(7, 89, 133, 0.35);
        backdrop-filter: blur(4px);
        z-index: 1000;
        display: none;
        align-items: center;
        justify-content: center;
        padding: 20px;
        animation: fadeIn 0.2s ease;
      }
      .modal-overlay.open {
        display: flex;
      }
      .modal-box {
        background: white;
        border-radius: 28px;
        padding: 40px;
        max-width: 620px;
        width: 100%;
        max-height: 90vh;
        overflow-y: auto;
        animation: slideIn 0.3s ease;
        box-shadow: 0 32px 80px rgba(7, 89, 133, 0.22);
      }
      .modal-box.sm {
        max-width: 440px;
      }
      .modal-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 28px;
      }
      .modal-tag {
        font-size: 13px;
        font-weight: 700;
        color: var(--blue-500);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin-bottom: 6px;
      }
      .modal-title {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 24px;
        color: var(--blue-800);
        line-height: 1.2;
      }
      .modal-close {
        background: var(--blue-50);
        border: none;
        border-radius: 50%;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        flex-shrink: 0;
        transition: background 0.2s;
      }
      .modal-close:hover {
        background: var(--blue-100);
      }
      .modal-success {
        text-align: center;
      }
      .success-icon {
        width: 72px;
        height: 72px;
        border-radius: 50%;
        background: linear-gradient(135deg, #38bdf8, #0369a1);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px;
      }
      .success-title {
        font-family: "Plus Jakarta Sans", sans-serif;
        font-weight: 800;
        font-size: 24px;
        color: var(--blue-800);
        margin-bottom: 12px;
      }
      .success-desc {
        color: var(--slate-500);
        line-height: 1.6;
        margin-bottom: 28px;
      }

      /* ===== FORM ===== */
      .form-body {
        display: flex;
        flex-direction: column;
        gap: 22px;
      }
      .form-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }
      .field-label {
        font-size: 12px;
        font-weight: 700;
        color: var(--blue-800);
        margin-bottom: 8px;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        display: block;
      }
      .field-input {
        font-family: "Nunito", sans-serif;
        border: 2px solid var(--blue-200);
        border-radius: 12px;
        padding: 10px 16px;
        font-size: 14px;
        color: #0c4a6e;
        background: white;
        outline: none;
        transition:
          border-color 0.2s,
          box-shadow 0.2s;
        width: 100%;
      }
      .field-input:focus {
        border-color: var(--blue-500);
        box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
      }
      .field-input.error {
        border-color: #ef4444;
      }
      .field-error {
        color: #ef4444;
        font-size: 12px;
        margin-top: 5px;
        font-weight: 600;
        display: none;
      }
      .field-error.show {
        display: block;
      }
      .toggle-group {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
      }
      .toggle-btn {
        display: flex;
        align-items: center;
        gap: 10px;
        cursor: pointer;
        padding: 8px 14px;
        border-radius: 12px;
        border: 2px solid var(--blue-100);
        background: white;
        font-family: "Nunito", sans-serif;
        font-size: 14px;
        font-weight: 600;
        color: var(--slate-600);
        transition: all 0.15s;
      }
      .toggle-btn.active {
        border-color: var(--blue-500);
        background: var(--blue-100);
        color: var(--blue-700);
      }
      .toggle-check {
        width: 18px;
        height: 18px;
        border-radius: 5px;
        border: 2px solid #cbd5e1;
        background: white;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: all 0.15s;
      }
      .toggle-check.radio {
        border-radius: 50%;
      }
      .toggle-btn.active .toggle-check {
        border-color: var(--blue-500);
        background: var(--blue-500);
      }
      .toggle-dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: white;
        display: none;
      }
      .toggle-btn.active .toggle-dot {
        display: block;
      }

      /* ===== FEEDBACK MODAL ===== */
      .stars {
        display: flex;
        justify-content: center;
        gap: 12px;
        margin-bottom: 12px;
      }
      .star-btn {
        background: none;
        border: none;
        cursor: pointer;
        padding: 4px;
        transition: transform 0.15s;
      }
      .star-btn:hover {
        transform: scale(1.2);
      }
      .star-label {
        text-align: center;
        font-weight: 700;
        font-size: 15px;
        height: 22px;
        margin-bottom: 16px;
        transition: color 0.2s;
      }
      .feedback-success {
        text-align: center;
        display: none;
      }
      .feedback-success.show {
        display: block;
      }
      .feedback-form.hide {
        display: none;
      }

      /* ===== FLOATING BUTTON ===== */
      #feedback-btn {
        position: fixed;
        bottom: 32px;
        right: 32px;
        background: linear-gradient(135deg, #0ea5e9, #0369a1);
        color: white;
        border: none;
        border-radius: 20px;
        padding: 14px 20px;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 8px;
        font-family: "Nunito", sans-serif;
        font-weight: 700;
        font-size: 14px;
        box-shadow: 0 8px 28px rgba(14, 165, 233, 0.4);
        z-index: 500;
        transition: all 0.25s ease;
      }
      #feedback-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 36px rgba(14, 165, 233, 0.52);
      }

      /* ===== SECTION PILL ===== */
      .section-pill {
        display: inline-block;
        border-radius: 50px;
        padding: 6px 18px;
        font-size: 13px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        margin-bottom: 16px;
      }
      .pill-blue {
        background: var(--blue-100);
        color: var(--blue-700);
      }
      .pill-amber {
        background: var(--amber-100);
        color: #92400e;
      }

      /* ===== ANIMATIONS ===== */
      @keyframes fadeIn {
        from {
          opacity: 0;
        }
        to {
          opacity: 1;
        }
      }
      @keyframes fadeInUp {
        from {
          opacity: 0;
          transform: translateY(24px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }
      @keyframes float {
        0%,
        100% {
          transform: translateY(0);
        }
        50% {
          transform: translateY(-10px);
        }
      }
      @keyframes slideIn {
        from {
          opacity: 0;
          transform: translateY(-8px) scale(0.97);
        }
        to {
          opacity: 1;
          transform: translateY(0) scale(1);
        }
      }
      .anim-up {
        animation: fadeInUp 0.65s ease both;
      }
      .anim-up-delay {
        animation: fadeInUp 0.8s 0.15s ease both;
      }

      /* ===== RESPONSIVE ===== */
      @media (max-width: 900px) {
        .resources-grid {
          grid-template-columns: 1fr;
        }
        .footer-grid {
          grid-template-columns: 1fr;
        }
        .mini-game {
          flex-direction: column;
        }
      }
      @media (max-width: 768px) {
        .hero-grid {
          grid-template-columns: 1fr;
        }
        .hero-illustration {
          display: none;
        }
        nav {
          display: none;
        }
        .hamburger {
          display: block;
        }
        .form-row {
          grid-template-columns: 1fr;
        }
        .modal-box {
          padding: 28px 20px;
        }
        .section {
          padding: 64px 0;
        }
        .challenge-stats {
          gap: 16px;
        }
        .mini-game {
          padding: 24px;
        }
      }
      @media (max-width: 480px) {
        .hero-btns {
          flex-direction: column;
        }
        .hero-stats {
          gap: 20px;
        }
        .challenge-card {
          padding: 28px;
        }
        .resource-card {
          padding: 28px;
        }
      }