/* RESET & BASE */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', sans-serif;
      min-height: 100vh;
      display: flex;
      background: #f0f4f8;
    }

    /* FLEX CONTAINER */
    .container {
      display: flex;
      width: 100%;
      min-height: 100vh;
      background: #fff;
    }

    /* ===== LEFT SIDE ===== */
    .left {
      flex: 1 1 50%;
      background: url('data:image/svg+xml;base64,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') no-repeat center center / cover;
      background-color: #1a4a66;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 2rem;
      color: #fff;
      position: relative;
      min-height: 100vh;
    }

    /* Overlay gradient */
    .left::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(145deg, rgba(20, 50, 70, 0.55) 0%, rgba(10, 30, 45, 0.70) 100%);
      z-index: 1;
    }

    .left-content {
      position: relative;
      z-index: 2;
      max-width: 420px;
      width: 100%;
    }

    .left-content .badge {
      display: inline-block;
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(4px);
      padding: 0.3rem 1.2rem;
      border-radius: 50px;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      margin-bottom: 1.5rem;
    }

    .left-content h1 {
      font-size: clamp(2rem, 5vw, 3.2rem);
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 1rem;
      text-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .left-content h1 i {
      color: #9ac9e6;
      margin-right: 6px;
    }

    .left-content p {
      font-size: clamp(0.9rem, 1.2vw, 1.05rem);
      opacity: 0.9;
      line-height: 1.6;
      max-width: 340px;
      text-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }

    .left-content .features {
      margin-top: 1.8rem;
      display: flex;
      flex-wrap: wrap;
      gap: 0.6rem;
    }

    .left-content .features span {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: clamp(0.75rem, 0.9vw, 0.85rem);
      font-weight: 500;
      background: rgba(255, 255, 255, 0.06);
      padding: 0.35rem 0.9rem;
      border-radius: 50px;
      backdrop-filter: blur(2px);
      border: 1px solid rgba(255, 255, 255, 0.06);
      white-space: nowrap;
    }

    .left-content .features i {
      color: #b5d9f0;
      font-size: 0.85rem;
    }

    /* ===== RIGHT SIDE ===== */
    .right {
      flex: 1 1 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #f8faff, #edf3f8);
      padding: 2rem 1.5rem;
      min-height: 100vh;
    }

    .login-card {
      width: 100%;
      max-width: 400px;
    }

    .login-card .brand {
      display: flex;
      align-items: center;
      gap: 0.7rem;
      margin-bottom: 0.3rem;
    }

    .login-card .brand .icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, #1f6e93, #15455e);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.3rem;
      flex-shrink: 0;
    }

    .login-card .brand .logo-img {
      width: 200px;
      height: auto;
      object-fit: contain;
      flex-shrink: 0;
    }

    .login-card .brand h2 {
      font-size: clamp(1.4rem, 2.5vw, 1.9rem);
      font-weight: 700;
      color: #0b2a3b;
    }

    .login-card .brand h2 span {
      font-weight: 400;
      color: #3b6b8a;
    }

    .login-card .greeting {
      margin: 1.2rem 0 1.8rem 0;
    }

    .login-card .greeting h3 {
      font-size: clamp(1.1rem, 1.8vw, 1.4rem);
      font-weight: 700;
      color: #0b2a3b;
    }

    .login-card .greeting p {
      color: #5a7d94;
      font-size: clamp(0.8rem, 1vw, 0.9rem);
    }

    /* FORM */
    .form-group {
      margin-bottom: 1.2rem;
    }

    .form-group label {
      display: block;
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #1f4b64;
      margin-bottom: 0.3rem;
    }

    .input-wrap {
      position: relative;
      background: #fff;
      border: 1.5px solid #e2ecf5;
      border-radius: 10px;
      transition: 0.2s;
      display: flex;
      align-items: center;
    }

    .input-wrap:focus-within {
      border-color: #1f6e93;
      box-shadow: 0 4px 16px rgba(31, 110, 147, 0.08);
    }

    .input-wrap .input-icon {
      position: absolute;
      left: 0.9rem;
      color: #8aadc4;
      font-size: 0.9rem;
      pointer-events: none;
      z-index: 1;
    }

    .input-wrap input {
      width: 100%;
      padding: 0.7rem 3rem 0.7rem 2.8rem;
      border: none;
      background: transparent;
      font-size: 0.9rem;
      font-weight: 500;
      color: #0c2c3d;
      outline: none;
      font-family: 'Inter', sans-serif;
    }

    .input-wrap input::placeholder {
      color: #b0c8da;
      font-weight: 400;
    }

    .toggle-btn {
      position: absolute;
      right: 0.6rem;
      top: 50%;
      transform: translateY(-50%);
      background: none;
      border: none;
      color: #8aadc4;
      font-size: 0.95rem;
      cursor: pointer;
      padding: 0.3rem 0.5rem;
      border-radius: 30px;
      transition: 0.15s;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
    }

    .toggle-btn:hover {
      color: #1f4b64;
      background: rgba(0, 0, 0, 0.03);
    }

    .toggle-btn:focus {
      outline: none;
    }

    .options {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin: 0.7rem 0 1.5rem 0;
      flex-wrap: wrap;
      gap: 0.5rem;
    }

    .options label {
      display: flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.8rem;
      font-weight: 500;
      color: #1f4b64;
      cursor: pointer;
    }

    .options label input[type="checkbox"] {
      width: 16px;
      height: 16px;
      accent-color: #1a6b8f;
      cursor: pointer;
    }

    .options .forgot {
      background: none;
      border: none;
      font-size: 0.8rem;
      font-weight: 500;
      color: #1f6e93;
      cursor: pointer;
      font-family: 'Inter', sans-serif;
      transition: 0.2s;
    }

    .options .forgot:hover {
      color: #0b3a52;
      text-decoration: underline;
    }

    .btn-login {
      width: 100%;
      padding: 0.8rem;
      background: linear-gradient(135deg, #1a5f7a, #0f4057);
      color: #fff;
      border: none;
      border-radius: 10px;
      font-weight: 700;
      font-size: clamp(0.9rem, 1vw, 1rem);
      cursor: pointer;
      transition: 0.3s;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.7rem;
      font-family: 'Inter', sans-serif;
      box-shadow: 0 8px 24px rgba(21, 69, 94, 0.2);
    }

    .btn-login:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(21, 69, 94, 0.3);
      background: linear-gradient(135deg, #15455e, #0a3347);
    }

    .btn-login:active {
      transform: scale(0.97);
    }

    .footer-links {
      margin-top: 1.8rem;
      padding-top: 1.2rem;
      border-top: 1px solid #dce8f2;
      display: flex;
      justify-content: center;
      gap: 1.5rem;
      flex-wrap: wrap;
      font-size: clamp(0.7rem, 0.8vw, 0.8rem);
    }

    .footer-links a {
      color: #1f6e93;
      text-decoration: none;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 0.3rem;
    }

    .footer-links a:hover {
      color: #0b3a52;
      text-decoration: underline;
    }

    .footer-links .ssl {
      color: #5a7d94;
      display: flex;
      align-items: center;
      gap: 0.3rem;
    }

    /* MODAL */
    .modal {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      backdrop-filter: blur(6px);
      z-index: 1000;
      align-items: center;
      justify-content: center;
      padding: 1.5rem;
    }

    .modal.active {
      display: flex;
    }

    .modal-box {
      background: #fff;
      border-radius: 18px;
      max-width: 400px;
      width: 100%;
      padding: 2rem 1.8rem;
      position: relative;
      animation: slideUp 0.3s ease;
    }

    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(30px) scale(0.96);
      }
      to {
        opacity: 1;
        transform: translateY(0) scale(1);
      }
    }

    .modal-box .close {
      position: absolute;
      top: 0.8rem;
      right: 1rem;
      background: none;
      border: none;
      font-size: 1.4rem;
      color: #8aadc4;
      cursor: pointer;
      padding: 0.3rem;
      transition: 0.2s;
    }

    .modal-box .close:hover {
      color: #1f4b64;
      transform: rotate(90deg);
    }

    .modal-box .icon-circle {
      width: 56px;
      height: 56px;
      background: #e8f0f7;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: #1f6e93;
      margin: 0 auto 1rem auto;
    }

    .modal-box h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: #0b2a3b;
      text-align: center;
      margin-bottom: 0.3rem;
    }

    .modal-box .desc {
      color: #5a7d94;
      font-size: 0.85rem;
      text-align: center;
      margin-bottom: 1.5rem;
      line-height: 1.5;
    }

    .modal-box .input-wrap {
      background: #f5f9fe;
    }

    .modal-box .btn-reset {
      width: 100%;
      padding: 0.8rem;
      background: linear-gradient(135deg, #1a5f7a, #0f4057);
      color: #fff;
      border: none;
      border-radius: 10px;
      font-weight: 700;
      font-size: 0.95rem;
      cursor: pointer;
      transition: 0.3s;
      font-family: 'Inter', sans-serif;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.6rem;
    }

    .modal-box .btn-reset:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(21, 69, 94, 0.3);
    }

    .modal-box .back-link {
      display: block;
      text-align: center;
      margin-top: 1rem;
      background: none;
      border: none;
      color: #1f6e93;
      font-size: 0.8rem;
      font-weight: 500;
      cursor: pointer;
      font-family: 'Inter', sans-serif;
      transition: 0.2s;
    }

    .modal-box .back-link:hover {
      color: #0b3a52;
      text-decoration: underline;
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 820px) {
      .container {
        flex-direction: column;
      }
      .left {
        flex: none;
        width: 100%;
        min-height: 40vh;
        padding: 2rem 1.5rem;
      }
      .left-content {
        max-width: 100%;
        text-align: left;
      }
      .left-content p {
        max-width: 100%;
      }
      .right {
        flex: none;
        width: 100%;
        min-height: 60vh;
        padding: 2rem 1.5rem;
      }
      .login-card {
        max-width: 100%;
      }
    }

    @media (max-width: 480px) {
      .left {
        min-height: 30vh;
        padding: 1.5rem 1rem;
        text-align: center;
      }
      .left-content {
        max-width: 100%;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
      .left-content p {
        max-width: 100%;
        text-align: center;
      }
      .left-content .features {
        justify-content: center;
      }
      .left-content .features span {
        white-space: nowrap;
      }
      .left-content .badge {
        align-self: center;
      }
      .left-content h1 {
        text-align: center;
        width: 100%;
      }
      .right {
        padding: 1.5rem 1rem;
      }
      .login-card .brand .icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
      }
      .input-wrap input {
        padding: 0.6rem 2.8rem 0.6rem 2.3rem;
        font-size: 0.85rem;
      }
      .input-wrap .input-icon {
        left: 0.7rem;
        font-size: 0.8rem;
      }
      .toggle-btn {
        right: 0.4rem;
        font-size: 0.85rem;
        padding: 0.2rem 0.4rem;
      }
      .options label {
        font-size: 0.7rem;
      }
      .options .forgot {
        font-size: 0.7rem;
      }
      .btn-login {
        padding: 0.65rem;
        font-size: 0.85rem;
      }
      .modal-box {
        padding: 1.5rem 1.2rem;
      }
      .modal-box h3 {
        font-size: 1.1rem;
      }
    }

    @media (max-width: 360px) {
      .left {
        min-height: 25vh;
        padding: 1rem;
      }
      .left-content h1 {
        font-size: 1.4rem;
      }
      .left-content p {
        font-size: 0.75rem;
      }
      .left-content .features span {
        font-size: 0.6rem;
        padding: 0.15rem 0.6rem;
        gap: 0.4rem;
      }
      .left-content .features i {
        font-size: 0.7rem;
      }
      .login-card .brand h2 {
        font-size: 1.1rem;
      }
      .login-card .brand .icon {
        width: 30px;
        height: 30px;
        font-size: 0.85rem;
      }
      .input-wrap input {
        padding: 0.5rem 2.5rem 0.5rem 2rem;
        font-size: 0.75rem;
      }
      .input-wrap .input-icon {
        left: 0.5rem;
        font-size: 0.7rem;
      }
      .toggle-btn {
        right: 0.3rem;
        font-size: 0.75rem;
        padding: 0.15rem 0.3rem;
      }
      .btn-login {
        padding: 0.5rem;
        font-size: 0.75rem;
      }
    }

    @media (max-height: 600px) and (orientation: landscape) {
      .container {
        flex-direction: row;
      }
      .left {
        min-height: 100vh;
        flex: 1 1 40%;
        padding: 1.5rem;
        text-align: left;
      }
      .left-content {
        align-items: flex-start;
        text-align: left;
      }
      .left-content p {
        text-align: left;
      }
      .left-content .features {
        justify-content: flex-start;
      }
      .left-content .badge {
        align-self: flex-start;
      }
      .left-content h1 {
        text-align: left;
      }
      .left-content h1 {
        font-size: 1.6rem;
      }
      .left-content p {
        font-size: 0.8rem;
      }
      .left-content .features {
        margin-top: 1rem;
        gap: 0.4rem;
      }
      .left-content .features span {
        font-size: 0.7rem;
        padding: 0.2rem 0.8rem;
      }
      .right {
        flex: 1 1 60%;
        min-height: 100vh;
        padding: 1.5rem;
      }
      .login-card .greeting {
        margin: 0.8rem 0 1.2rem 0;
      }
      .login-card .greeting h3 {
        font-size: 1rem;
      }
      .form-group {
        margin-bottom: 0.8rem;
      }
      .options {
        margin: 0.4rem 0 1rem 0;
      }
    }