:root {
        --bg-dark: #071e3d;
        --bg-light: #f4f9f6;
        --primary-yellow: #f6b638;
        --primary-yellow-hover: #dda332;
        --text-dark: #1e293b;
        --text-light: #ffffff;
        --text-muted: #cbd5e1;
        --font-sans: "Inter", sans-serif;
        --font-serif: "Playfair Display", serif;
      }

      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      body {
        font-family: var(--font-sans);
        color: var(--text-dark);
        line-height: 1.6;
        background-color: var(--bg-light);
        overflow-x: hidden;
      }
      a {
        text-decoration: none;
        color: inherit;
      }
      ul {
        list-style: none;
      }
      img {
        max-width: 100%;
        display: block;
      }

      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
      }
      .btn {
        display: inline-block;
        padding: 12px 24px;
        border-radius: 50px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
        font-size: 0.95rem;
      }
      .btn-yellow {
        background-color: var(--primary-yellow);
        color: var(--bg-dark);
        border: 2px solid var(--primary-yellow);
      }
      .btn-yellow:hover {
        background-color: var(--primary-yellow-hover);
      }
      .btn-outline {
        background-color: transparent;
        color: var(--text-light);
        border: 1px solid rgba(255, 255, 255, 0.3);
      }
      .btn-outline:hover {
        background-color: rgba(255, 255, 255, 0.1);
      }

      /* ================= HEADER SECTION ================= */
      header {
        position: sticky;
        top: 20px;
        z-index: 1000;
        padding-top: 20px;
        margin-bottom: -85px;
        display: flex;
        justify-content: center;
        pointer-events: none;
      }

      .navbar {
        background-color: var(--bg-dark);
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: calc(100% - 40px);
        max-width: 1100px;
        margin: 0 auto;
        padding: 10px 20px;
        border-radius: 100px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        pointer-events: auto;
      }

      .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-light);
        font-weight: 700;
        font-size: 1.25rem;
        font-family: var(--font-serif);
      }

      .logo-icon {
        background-color: var(--primary-yellow);
        width: 36px;
        height: 36px;
        border-radius: 8px;
        display: flex;
        justify-content: center;
        align-items: center;
      }

      .logo-icon img {
        width: 24px;
        height: 24px;
        object-fit: contain;
        display: block;
      }

      .nav-links {
        display: flex;
        justify-content: center;
        flex: 1;
        gap: 30px;
        color: var(--text-light);
        font-size: 0.9rem;
      }

      .hamburger {
        display: none;
        color: var(--text-light);
        font-size: 1.5rem;
        cursor: pointer;
        background: none;
        border: none;
      }

      /* ================= HERO SECTION ================= */
      .hero {
        background-color: var(--bg-dark);
        color: var(--text-light);
        padding: 150px 0 100px 0;
        position: relative;
      }
      .hero-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 50px;
        align-items: center;
      }
      .badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background-color: rgba(255, 255, 255, 0.1);
        padding: 6px 16px;
        border-radius: 50px;
        font-size: 0.85rem;
        margin-bottom: 24px;
      }
      .hero h1 {
        font-family: var(--font-serif);
        font-size: 3.5rem;
        line-height: 1.1;
        margin-bottom: 24px;
      }
      .hero h1 .highlight {
        color: var(--primary-yellow);
        position: relative;
        display: inline-block;
      }
      .hero h1 .highlight::after {
        content: "";
        position: absolute;
        bottom: 5px;
        left: 0;
        width: 100%;
        height: 4px;
        background-color: var(--primary-yellow);
        border-radius: 2px;
      }
      .hero p {
        color: var(--text-muted);
        font-size: 1.1rem;
        margin-bottom: 32px;
        max-width: 90%;
      }
      .hero-buttons {
        display: flex;
        gap: 16px;
        margin-bottom: 48px;
      }
      .hero-stats {
        display: flex;
        gap: 32px;
      }
      .stat-item {
        border-right: 1px solid rgba(255, 255, 255, 0.2);
        padding-right: 32px;
      }
      .stat-item:last-child {
        border-right: none;
      }
      .stat-item h4 {
        font-family: var(--font-serif);
        font-size: 2rem;
        margin-bottom: 4px;
      }
      .stat-item span {
        font-size: 0.85rem;
        color: var(--text-muted);
      }
      /* ================= ANIMASI MENGAMBANG (FLOATING) ================= */
      @keyframes floatAnimation {
        0% {
          transform: translateY(0px);
        }
        50% {
          transform: translateY(-15px);
        } /* Bergerak ke atas 15px */
        100% {
          transform: translateY(0px);
        }
      }

      .hero-image-wrapper {
        position: relative;
        border-radius: 24px;
        animation: floatAnimation 4s ease-in-out infinite;
      }

      .hero-image-wrapper img {
        border-radius: 24px;
        width: 100%;
        display: block;
        border: 8px solid rgba(255, 255, 255, 0.301);
      }

      /* ================= STYLING FLOATING CARDS (VERSI FORCE CENTER) ================= */
      .floating-card {
        position: absolute;
        background: #ffffff;
        padding: 10px 14px !important;
        border-radius: 10px;
        display: flex !important;
        align-items: center !important;
        gap: 12px !important;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        z-index: 2;
      }

      .floating-card .card-icon {
        width: 32px !important;
        height: 32px !important;
        border-radius: 6px;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        margin: 0 !important;
        padding: 0 !important;
        flex-shrink: 0 !important;
      }

      .floating-card .card-text {
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
        margin: 0 !important;
        padding: 0 !important;
      }

      .floating-card .card-text strong,
      .floating-card .card-text span {
        margin: 0 !important;
        padding: 0 !important;
        line-height: 1.2 !important;
        display: block !important;
      }

      .floating-card .card-text strong {
        color: var(--text-dark) !important;
        font-size: 0.85rem !important;
        font-weight: 700 !important;
      }

      .floating-card .card-text span {
        color: #64748b !important;
        font-size: 0.75rem !important;
        margin-top: 2px !important;
      }

      .card-top-right {
        top: -15px;
        right: -15px;
      }

      .card-bottom-left {
        bottom: -20px;
        left: -20px;
      }

      /* ================= MARQUEE SECTION ================= */
      .marquee-container {
        background-color: #d7f1ec;
        padding: 15px 0;
        overflow: hidden;
        white-space: nowrap;
        border-bottom: 1px solid #e2e8f0;
        display: flex;
      }

      .marquee-content {
        display: flex;
        width: max-content;
        animation: marquee 20s linear infinite;
      }

      .marquee-scroll {
        display: flex;
        justify-content: space-around;
        min-width: 100%;
      }

      .marquee-item {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        margin-right: 5px;
        color: #071e3d;
        font-weight: 600;
      }

      @keyframes marquee {
        0% {
          transform: translateX(0);
        }
        100% {
          transform: translateX(-50%);
        }
      }

      /* ================= PROGRAM SECTION ================= */
      .program-section {
        padding: 80px 0;
      }
      .section-subtitle {
        color: var(--primary-yellow);
        text-transform: uppercase;
        font-size: 0.85rem;
        font-weight: 700;
        letter-spacing: 1px;
        margin-bottom: 0px;
      }
      .program-section h2 {
        font-family: var(--font-serif);
        font-size: 2.5rem;
        font-weight: 800;
        line-height: 1.15;
        color: var(--bg-dark);
        margin-bottom: 48px;
        max-width: 500px;
      }
      .program-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
      }
      .program-card {
        background-color: #e8f3f0;
        padding: 32px 24px;
        border-radius: 16px;
        transition: transform 0.3s ease;
      }
      .program-card:hover {
        transform: translateY(-5px);
      }
      .card-icon {
        width: 48px;
        height: 48px;
        background-color: var(--bg-dark);
        color: white;
        border-radius: 12px;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 24px;
        font-size: 1.5rem;
      }
      .program-card h3 {
        font-family: var(--font-serif);
        font-size: 1.25rem;
        margin-bottom: 12px;
        color: var(--bg-dark);
      }
      .program-card p {
        font-size: 0.9rem;
        color: #475569;
      }
      .card-icon svg {
        width: 24px;
        height: 24px;
        display: block;
      }

      /* ================= KEUNGGULAN SECTION ================= */
      .keunggulan-section {
        background-color: var(--bg-dark);
        color: var(--text-light);
        padding: 80px 0;
      }
      .keunggulan-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
      }
      .keunggulan-img-wrapper {
        position: relative;
      }
      .keunggulan-img-wrapper img {
        border-radius: 24px;
        border: 8px solid rgba(255, 255, 255, 0.301);
      }
      .ratio-badge {
        position: absolute;
        bottom: -20px;
        right: 20px;
        background: white;
        color: var(--text-dark);
        padding: 16px 24px;
        border-radius: 16px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
      }
      .ratio-badge h4 {
        font-family: var(--font-serif);
        font-size: 1.25rem;
        margin-bottom: 4px;
      }
      .ratio-badge p {
        font-size: 0.8rem;
        color: #64748b;
      }
      .keunggulan-content h2 {
        font-family: var(--font-serif);
        font-size: 2.5rem;
        line-height: 1.2;
        margin-bottom: 24px;
      }
      .keunggulan-content p {
        color: var(--text-muted);
        margin-bottom: 32px;
      }
      .feature-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }
      .feature-item {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 0.9rem;
        line-height: 1.5;
      }
      .check-icon {
        color: var(--primary-yellow);
        margin-top: 2px;
        flex-shrink: 0;
      }

      /* ================= PEMBIMBING SECTION ================= */
      .pembimbing-section {
        padding: 80px 0;
      }
      .pembimbing-section h2 {
        font-family: var(--font-serif);
        font-size: 2.5rem;
        color: var(--bg-dark);
        margin-top: 0;
        margin-bottom: 48px;
        line-height: 1.1;
      }
      .pembimbing-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
      }
      .pembimbing-card img {
        width: 100%;
        height: 300px;
        object-fit: cover;
        border-radius: 16px 16px 0 0;
      }
      .pembimbing-info {
        background: white;
        padding: 24px;
        border-radius: 0 0 16px 16px;
        border: 1px solid #e2e8f0;
        border-top: none;
      }
      .pembimbing-info h3 {
        font-family: var(--font-serif);
        font-size: 1.25rem;
        color: var(--bg-dark);
        margin-bottom: 4px;
      }
      .pembimbing-info p {
        color: #64748b;
        font-size: 0.9rem;
      }

      /* ================= CTA / FORM SECTION ================= */
      .cta-section {
        padding: 80px 0 80px 0;
      }
      .cta-box {
        background-color: var(--bg-dark);
        border-radius: 24px;
        padding: 60px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
      }
      .cta-text h2 {
        font-family: var(--font-serif);
        color: white;
        font-size: 2.5rem;
        margin-bottom: 16px;
      }
      .cta-text p {
        color: var(--text-muted);
        margin-bottom: 24px;
      }
      .contact-info {
        color: white;
        display: flex;
        flex-direction: column;
        gap: 16px;
        font-size: 0.95rem;
      }

      .contact-item {
        display: flex;
        align-items: center;
        gap: 12px;
      }

      .contact-icon {
        width: 18px;
        height: 18px;
        fill: var(--primary-yellow);
        flex-shrink: 0;
        display: block;
      }
      .form-group {
        margin-bottom: 16px;
      }
      .form-control {
        width: 100%;
        padding: 14px 16px;
        border-radius: 8px;
        border: none;
        background-color: rgba(255, 255, 255, 0.9);
        font-family: var(--font-sans);
      }
      .btn-submit {
        width: 100%;
        text-align: center;
        border-radius: 8px;
      }

      /* ================= TESTIMONI SECTION ================= */
      .testimoni-section {
        padding: 80px 0;
        background-color: var(--bg-light);
      }

      .testimoni-section h2 {
        font-family: var(--font-serif);
        font-size: 2.5rem;
        font-weight: 800;
        color: var(--bg-dark);
        margin-bottom: 48px;
      }

      .slider-container {
        overflow: hidden;
        width: 100%;
        position: relative;
        padding: 10px 0;
      }
      .slider-wrapper {
        display: flex;
        transition: transform 0.5s ease-in-out;
      }
      .slide-item {
        flex: 0 0 calc(100% / 3);
        padding: 0 12px;
      }

      .testimoni-img {
        width: 100%;
        aspect-ratio: 3 / 4;
        object-fit: cover;
        border-radius: 16px;
        filter: grayscale(100%);
        transition:
          filter 0.4s ease,
          transform 0.4s ease,
          box-shadow 0.4s ease;
        cursor: pointer;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
      }

      .testimoni-img:hover {
        filter: grayscale(0%);
        transform: translateY(-5px) scale(1.02);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
      }

      .pagination {
        display: flex;
        justify-content: center;
        gap: 8px;
        margin-top: 32px;
      }
      .dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background-color: #cbd5e1;
        cursor: pointer;
        transition: all 0.3s ease;
      }
      .dot.active {
        background-color: var(--primary-yellow);
        width: 24px;
        border-radius: 5px;
      }

      /* ================= LIGHTBOX (FULL WIDTH POPUP) ================= */
      .lightbox {
        display: none;
        position: fixed;
        z-index: 99999;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(7, 30, 61, 0.95);
        align-items: center;
        justify-content: center;
        backdrop-filter: blur(5px);
      }
      .lightbox-content {
        max-width: 90%;
        max-height: 90vh;
        border-radius: 12px;
        object-fit: contain;
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
      }
      .close-lightbox {
        position: absolute;
        top: 20px;
        right: 30px;
        color: white;
        font-size: 40px;
        font-weight: bold;
        cursor: pointer;
        transition: color 0.3s ease;
      }
      .close-lightbox:hover {
        color: var(--primary-yellow);
      }

      /* ================= FOOTER ================= */
      footer {
        background-color: #041224;
        color: var(--text-muted);
        padding: 40px 0;
        font-size: 0.9rem;
      }
      .footer-content {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: 40px;
        margin-bottom: 24px;
      }
      .footer-links {
        display: flex;
        gap: 60px;
      }
      .footer-col h4 {
        color: white;
        margin-bottom: 16px;
        font-weight: 600;
      }
      .footer-col ul {
        display: flex;
        flex-direction: column;
        gap: 12px;
      }

      /* ================= RESPONSIVE MOBILE ================= */
      @media (max-width: 768px) {
        .navbar {
          position: relative !important;
          z-index: 1005 !important;
        }

        .nav-links {
          display: none !important;
          position: absolute !important;
          top: 65px !important;
          left: 0 !important;
          right: 0 !important;
          width: 100% !important;
          background-color: var(--bg-dark) !important;
          padding: 24px !important;
          border-radius: 16px !important;
          flex-direction: column !important;
          align-items: center !important;
          gap: 20px !important;
          box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3) !important;
          z-index: 1010 !important;
          pointer-events: auto !important;
        }

        .nav-links.active {
          display: flex !important;
        }

        .nav-btn {
          display: none !important;
        }

        .hamburger {
          display: block !important;
          cursor: pointer !important;
          pointer-events: auto !important;
          background-color: rgba(255, 255, 255, 0.1);
          padding: 6px 10px;
          border-radius: 6px;
        }

        .card-top-right {
          right: 10px;
          top: -10px;
        }
        .card-bottom-left {
          left: 10px;
          bottom: -10px;
        }

        .hero {
          padding: 150px 0 60px 0;
        }
        .hero-grid {
          display: flex;
          flex-direction: column;
          gap: 40px;
        }
        .hero h1 {
          font-size: 2.5rem;
        }
        .hero p {
          max-width: 100%;
          font-size: 1rem;
        }
        .hero-buttons {
          flex-direction: row;
          gap: 12px;
        }
        .hero-buttons .btn {
          padding: 12px 20px;
          font-size: 0.9rem;
        }
        .hero-stats {
          gap: 16px;
          justify-content: space-between;
          width: 100%;
        }
        .stat-item {
          padding-right: 16px;
        }
        .stat-item h4 {
          font-size: 1.5rem;
        }

        .program-grid,
        .pembimbing-grid {
          grid-template-columns: 1fr;
        }
        /* ================= CTA / FORM MOBILE ================= */
        .cta-box {
          grid-template-columns: 1fr !important;
          gap: 40px !important;
          padding: 40px 24px !important;
        }

        .cta-form {
          width: 100% !important;
        }

        .cta-text h2 {
          font-size: 2rem !important;
          line-height: 1.2 !important;
        }
        .keunggulan-grid {
          grid-template-columns: 1fr !important;
          gap: 40px !important;
        }

        .keunggulan-img-wrapper img {
          width: 100% !important;
          height: auto !important;
        }

        .ratio-badge {
          padding: 12px 16px !important;
          bottom: -15px !important;
          right: 10px !important;
        }

        .ratio-badge h4 {
          font-size: 1.1rem !important;
        }
        .feature-list {
          grid-template-columns: 1fr;
        }
        .footer-content {
          flex-direction: column;
          gap: 40px;
        }
        .footer-links {
          flex-direction: column;
          gap: 30px;
        }

        .slide-item {
          flex: 0 0 100%;
        }
        .testimoni-section h2 {
          font-size: 2rem;
        }
      }
      
      /* ================= FLOATING WHATSAPP ================= */
      .floating-wa {
        position: fixed;
        bottom: 30px;
        right: 30px;
        background-color: #25d366; /* Warna hijau khas WhatsApp */
        width: 60px;
        height: 60px;
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
        z-index: 9999; /* Z-index raksasa agar selalu ada di atas elemen apapun */
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        animation: pulse-wa 2s infinite; /* Memanggil animasi denyut */
      }

      .floating-wa .wa-icon {
        width: 35px;
        height: 35px;
        fill: white;
      }

      /* Efek saat mouse diarahkan (Hover) */
      .floating-wa:hover {
        transform: translateY(-5px) scale(1.05); /* Sedikit membesar dan naik */
        box-shadow: 0 15px 30px rgba(37, 211, 102, 0.6);
        animation: none; /* Matikan efek denyut saat di-hover */
      }

      /* Animasi Denyut (Pulse) */
      @keyframes pulse-wa {
        0% {
          box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6);
        }
        70% {
          box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
        }
        100% {
          box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
        }
      }

      /* Penyesuaian untuk layar HP agar tidak terlalu menutupi layar */
      @media (max-width: 768px) {
        .floating-wa {
          bottom: 20px;
          right: 20px;
          width: 50px;
          height: 50px;
        }
        
        .floating-wa .wa-icon {
          width: 28px;
          height: 28px;
        }
      }