html,
  body {
      margin: 0px;
      width: 100%;
      height: 100%;
      overflow: hidden;
      background: #000;
  }

  #orientation-lock {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(0, 0, 0, 0.96);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      z-index: 99999;
      color: #fff;
      text-align: center;
      font-family: 'Arial', sans-serif;
      font-size: 18px;
      display: none;
      transition: background 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  }

  #orientation-lock .phone-icon {
      font-size: 64px;
      opacity: 0.92;
      animation: phone-bounce-smooth 2.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
      filter: drop-shadow(0 4px 16px #fff3);
      transition: filter 0.4s, opacity 0.4s;
  }

  @keyframes phone-bounce-smooth {
      0% {
          transform: rotate(-45deg) scale(1);
          opacity: 0.8;
      }

      20% {
          transform: rotate(-45deg) scale(1.05);
          opacity: 1;
      }

      40% {
          transform: rotate(45deg) scale(1.1);
          opacity: 1;
      }

      60% {
          transform: rotate(45deg) scale(1.1);
          opacity: 1;
      }

      80% {
          transform: rotate(-45deg) scale(1.05);
          opacity: 1;
      }

      100% {
          transform: rotate(-45deg) scale(1);
          opacity: 0.8;
      }
  }

  #matrix-rain {
      position: fixed;
      top: 0;
      left: 0;
      width: 104%;
      height: 100%;
      z-index: 1;
      pointer-events: none;
  }

  #settingsModal {
      z-index: 11000 !important;
  }

  body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      font-family: 'Arial', sans-serif;
      overflow: hidden;
      position: relative;
  }


  /* Enhanced Heart Effect */
  .heart {
      position: fixed;
      z-index: 1000;
      pointer-events: none;
      color: #ff6b6b;
      font-size: 20px;
      animation: float-heart 4s ease-in-out forwards;
  }

  @keyframes float-heart {
      0% {
          transform: translateY(0) scale(0);
          opacity: 0;
      }

      10% {
          transform: translateY(-20px) scale(1);
          opacity: 1;
      }

      90% {
          opacity: 1;
      }

      100% {
          transform: translateY(-700px) scale(0);
          opacity: 0;
      }
  }

  .book-container {
      perspective: 2000px;
      position: relative;
      display: none;
      opacity: 0;
      transform: scale(0.8) translateY(50px);
      transition: opacity 1s ease, transform 1s ease;
  }

  .book-container.show {
      display: block;
      opacity: 1;
      transform: scale(1) translateY(80px);
  }

  .content-display {
      position: fixed;
      top: 2%;
      left: 50%;
      transform: translateX(-50%);
      width: 85vw;
      max-width: 650px;
      min-height: 160px;
      max-height: 230px;
      /* Giữ nguyên để không che book */
      background:
          linear-gradient(145deg, #ffffff 0%, #fefefe 100%),
          radial-gradient(circle at 50% 50%, rgba(255, 192, 203, 0.05) 0%, transparent 60%);
      border: none;
      border-radius: 20px;
      padding: 40px 35px;
      box-shadow:
          0 20px 60px rgba(255, 105, 180, 0.15),
          0 10px 30px rgba(0, 0, 0, 0.08),
          inset 0 1px 0 rgba(255, 255, 255, 0.9),
          inset 0 -1px 0 rgba(255, 192, 203, 0.1);
      backdrop-filter: blur(20px);

      /* Mặc định ẩn */
      opacity: 0;
      display: none;
      pointer-events: none;

      font-family: 'Crimson Text', serif;
      overflow-y: auto;
      /* Luôn cho phép scroll */
      scrollbar-width: thin;
      scrollbar-color: rgba(255, 105, 180, 0.3) transparent;
      scroll-behavior: smooth;
      box-sizing: border-box;
      z-index: 10;

      /* Romantic paper texture
            background-image:
                radial-gradient(circle at 100% 50%, transparent 20%, rgba(255, 240, 245, 0.3) 21%, rgba(255, 240, 245, 0.3) 34%, transparent 35%, transparent),
                linear-gradient(0deg, rgba(255, 240, 245, 0.1) 50%, transparent 50%);
            background-size: 30px 60px, 100% 4px; */

      /* Romantic border decoration */
      border: 3px solid transparent;
      /* background-clip: padding-box; */

      /* Animation cho hiệu ứng xuất hiện */
      transition: all 0.5s ease;
  }

  .content-display::after {
      content: '💕';
      position: absolute;
      top: 15px;
      right: 20px;
      font-size: 24px;
      opacity: 0.6;
      animation: heartbeat 2s ease-in-out infinite;
  }

  .content-display.show {
      display: block;
      opacity: 1 !important;
      pointer-events: auto;
      background: rgba(255, 255, 255, 0.98) !important;
  }

  .content-display p {
      margin: 0;
      padding: 0;
      color: #2c1810;
      font-size: clamp(18px, 3vw, 24px);
      line-height: 2.2;
      text-align: center;
      font-weight: 400;
      font-family: 'Dancing Script', 'Brush Script MT', 'Lucida Handwriting', 'Comic Sans MS', cursive;
      width: 100%;
      opacity: 1;
      transform: translateY(0);
      transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out;
      min-height: fit-content;
      display: block;
      text-shadow: 0 1px 2px rgba(255, 105, 180, 0.1);
      letter-spacing: 0.5px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      text-rendering: optimizeLegibility;

      /* Romantic text effects */
      background: linear-gradient(45deg, #8b4513, #a0522d, #8b4513, #6b3410);
      background-size: 400% 400%;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      animation: romanticText 8s ease-in-out infinite;
  }

  @keyframes romanticBorder {

      0%,
      100% {
          background-position: 0% 50%;
      }

      50% {
          background-position: 100% 50%;
      }
  }

  @keyframes heartbeat {

      0%,
      100% {
          transform: scale(1);
          opacity: 0.6;
      }

      50% {
          transform: scale(1.2);
          opacity: 0.9;
      }
  }

  @keyframes floatingHearts {

      0%,
      100% {
          transform: translateY(0px);
      }

      50% {
          transform: translateY(-5px);
      }
  }


  .typewriter-text {
      display: inline;
  }

  .typewriter-cursor {
      display: inline-block;
      background-color: #333;
      margin-left: 2px;
      width: 2px;
      height: 1.2em;
      animation: blink 1s infinite;
  }

  @keyframes blink {

      0%,
      50% {
          opacity: 1;
      }

      51%,
      100% {
          opacity: 0;
      }
  }

  .book-container::before {
      content: '';
      position: absolute;
      top: -20px;
      left: -20px;
      right: -20px;
      bottom: -20px;
      background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
      z-index: -1;
      filter: blur(15px);
      animation: glowPulse 3s ease-in-out infinite;
  }

  @keyframes glowPulse {

      0%,
      100% {
          opacity: 0.5;
          transform: scale(1);
      }

      50% {
          opacity: 0.8;
          transform: scale(1.05);
      }
  }

  .book {
      width: 600px;
      height: 400px;
      position: relative;
      transform-style: preserve-3d;
      transition: transform 0.5s ease;
      cursor: grab;
      user-select: none;
      display: none;
  }

  .book.show {
      display: block;
  }

  .page {
      width: 300px;
      height: 400px;
      position: absolute;
      top: 0;
      right: 0;
      transform-origin: left center;
      transform-style: preserve-3d;
      transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.8), 0 10px 20px rgba(0, 0, 0, 0.2), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
      cursor: pointer;
      touch-action: pan-x;
  }

  .page-front,
  .page-back {
      position: absolute;
      width: 100%;
      height: 100%;
      backface-visibility: hidden;
      overflow: hidden;
      border: 2px solid #ddd;
      border-radius: 0 8px 8px 0;
  }

  .page-front {
      background: white;
      z-index: 2;
  }

  .page-back {
      background: white;
      transform: rotateY(180deg);
      border-radius: 8px 0 0 8px;
  }

  .page-front img,
  .page-back img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      border-radius: inherit;
      position: relative;
      z-index: 1;
  }

  .page-front::before,
  .page-back::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 0;
      pointer-events: none;
  }

  .page-front::before {
      background: linear-gradient(90deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.05) 2%, transparent 10%);
  }

  .page-back::before {
      background: linear-gradient(90deg, transparent 90%, rgba(0, 0, 0, 0.05) 98%, rgba(0, 0, 0, 0.1) 100%);
  }

  .page.flipped {
      transform: rotateY(-180deg);
      box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.8), -10px 10px 20px rgba(0, 0, 0, 0.3), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
  }

  .page.flipping {
      transform: rotateY(-90deg);
      box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.8), -5px 10px 30px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(0, 0, 0, 0.1);
  }

  /* Dynamic z-index cho pages - hỗ trợ số lượng trang không giới hạn */
  .page {
      z-index: var(--page-z-index, 1);
  }

  .page.flipped {
      z-index: var(--page-flipped-z-index, 1);
  }

  /* Đảm bảo tất cả pages đều có z-index mặc định */
  .page {
      z-index: var(--page-z-index, 1);
  }

  .page.flipped {
      z-index: var(--page-flipped-z-index, 1);
  }

  .empty-page {
      background: #f9f9f9;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ccc;
      font-size: 14px;
      font-style: italic;
  }

  @keyframes giftCelebration {
      0% {
          transform: translate(-50%, -50%) scale(0.5);
          opacity: 0;
      }

      50% {
          transform: translate(-50%, -50%) scale(1.1);
          opacity: 1;
      }

      100% {
          transform: translate(-50%, -50%) scale(1);
          opacity: 1;
      }
  }

  .page-config {
      position: relative;
  }

  .page-config-close {
      position: absolute;
      top: 5px;
      right: 5px;
      width: 24px;
      height: 24px;
      border: none;
      border-radius: 50%;
      color: rgb(255, 5, 5);
      font-size: 13px;
      font-weight: bold;
      line-height: 24px;
      text-align: center;
      cursor: pointer;
      z-index: 10;
      /* Ensure button is above other content */
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease, background 0.2s ease;
  }

  .page-config-close:hover {
      background: linear-gradient(135deg, #ff5a8c, #ff97b4);
      transform: scale(1.1);
  }

  .page-config-close:active {
      transform: scale(0.95);
  }



  .firework-container {
      position: fixed;
      top: 50%;
      left: 50%;
      width: 200px;
      height: 200px;
      pointer-events: none;
      opacity: 0;
      transform: translate(-50%, -50%);
      z-index: 200;
  }

  .firework {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 6px;
      height: 20px;
      background: radial-gradient(circle, #fff 0%, transparent 70%);
      border-radius: 50% 50% 0 0;
      transform-origin: bottom center;
      opacity: 0;
      animation: fireworkExplode 1s ease forwards;
  }

  @keyframes fireworkExplode {
      0% {
          opacity: 1;
          transform: translateY(0) scaleY(1);
      }

      100% {
          opacity: 0;
          transform: translateY(-100px) scaleY(3);
      }
  }

  .photo {
      position: fixed;
      width: 120px;
      height: 120px;
      border-radius: 20px;
      object-fit: cover;
      box-shadow: 0 0 20px rgba(255, 105, 180, 0.8);
      opacity: 0;
      pointer-events: none;
      border: 5px solid white;
      background: white;
      z-index: 300;
      transition: transform 3s ease, opacity 3s ease;
      transform: translate(-50%, -50%);
  }

  @media screen and (max-height: 500px) and (orientation: landscape) {
      .book-container {}

      .book-container.show {
          display: block;
          opacity: 1;
          transform: scale(1) translateY(10px);
      }

      .content-display::after {
          top: 5px;
          right: 5px;
          font-size: 20px;
      }

      .book {
          width: 300px;
          height: 200px;
          transform: scale(0.7);
          margin-top: 0px;
      }

      .page {
          width: 150px;
          height: 200px;
      }

      .content-display {
          width: 45vw;
          min-height: 50px;
          max-height: 80px;
          padding: 5px 8px;
          top: 10px;
      }

      .content-display p {
          font-size: 13px !important;
      }

      .photo {
          width: 60px;
          height: 60px;
      }

      .firework-container {
          width: 100px;
          height: 100px;
      }
  }

  .music-control {
      position: fixed;
      top: 20px;
      right: 20px;
      width: 40px;
      height: 40px;
      background: none;
      border: none;
      border-radius: 50%;
      cursor: pointer;
      z-index: 10001;
      box-shadow: 0 4px 15px rgba(250, 250, 250, 0.4);
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 17px;
      color: rgb(205, 202, 202);
      outline: none;
  }

  .music-control:hover {
      transform: scale(1.1);
      box-shadow: 0 6px 20px rgba(255, 107, 157, 0.6);
  }

  .music-control:active {
      transform: scale(0.95);
  }

  .music-control.playing {
      animation: musicPulse 1.5s infinite;
  }

  @keyframes musicPulse {

      0%,
      100% {
          transform: scale(1);
          box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
      }

      50% {
          transform: scale(1.05);
          box-shadow: 0 8px 25px rgba(255, 107, 157, 0.8);
      }
  }

  .settings-button {
      position: fixed;
      top: 20px;
      right: 90px;
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, #b20404, #2a1717);
      border: none;
      border-radius: 50%;
      cursor: pointer;
      z-index: 10001;
      box-shadow: 0 4px 15px rgba(76, 175, 80, 0.4);
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: rgb(255, 255, 255);
      outline: none;
  }

  .settings-button:hover {
      transform: scale(1.1);
      box-shadow: 0 6px 20px rgba(76, 175, 80, 0.6);
  }

  .settings-button:active {
      transform: scale(0.95);
  }

  /* Modal container */
  .modal {
      display: none;
      position: fixed;
      z-index: 10002;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      /* background-color: rgba(0, 0, 0, 0.5); */
      overflow: auto;
      animation: fadeIn 0.3s ease-in-out;
  }

  /* Modal animation */
  @keyframes fadeIn {
      from {
          opacity: 0;
      }

      to {
          opacity: 1;
      }
  }

  /* Modal content */
  .modal-content {
      background-color: #ffffff;
      margin: 3vh auto;
      padding: 0;
      border: none;
      width: 90%;
      max-width: 600px;
      height: 80vh;
      border-radius: 12px;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
      display: flex;
      flex-direction: column;
      overflow: hidden;
  }

  /* Modal header */
  .modal-header {
      background: linear-gradient(135deg, #b69f08, #181818);
      padding: 15px 20px;
      border-radius: 12px 12px 0 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
  }

  .modal-header h2 {
      margin: 0;
      color: white;
      font-size: 24px;
      font-weight: 600;
  }

  .close {
      color: white;
      font-size: 28px;
      font-weight: bold;
      cursor: pointer;
      transition: color 0.2s ease;
  }

  .close:hover,
  .close:focus {
      color: #ffeb3b;
  }

  /* Modal body */
  .modal-body {
      flex: 1;
      padding: 20px;
      overflow-y: auto;
      background: #f9f9f9;
  }

  /* Settings section */
  .settings-section {
      margin-bottom: 20px;
      padding: 15px;
      background: white;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  .settings-section h3 {
      margin: 0 0 15px;
      font-size: 18px;
      color: #333;
      border-bottom: 2px solid #eee;
      padding-bottom: 8px;
  }

  /* Form group */
  .form-group {
      margin-bottom: 15px;
  }

  .form-group label {
      display: block;
      margin-bottom: 5px;
      font-weight: 600;
      color: #444;
      font-size: 14px;
  }

  .form-group input[type="color"] {
      width: 100%;
      height: 40px;
      padding: 0;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      appearance: none;
      -webkit-appearance: none;
      background-color: transparent;
      box-shadow: inset 0 0 0 1px #ddd, inset 0 -1px 0 rgba(255, 255, 255, 0.5);
  }

  /* Form row for side-by-side inputs */
  .form-row {
      display: flex;
      gap: 15px;
  }

  .form-row .form-group {
      flex: 1;
  }

  /* Inputs and selects */
  .modal-content select,
  .modal-content input[type="text"],
  .modal-content input[type="file"],
  .modal-content input[type="color"],
  .modal-content textarea {
      width: 100%;
      padding: 10px;
      margin-bottom: 10px;
      border: 1px solid #ddd;
      border-radius: 6px;
      font-size: 14px;
      background: #fff;
      transition: border-color 0.2s ease;
      box-sizing: border-box;
      white-space: normal !important;
      /* Thêm dòng này */
      word-wrap: normal !important;
      /* Thêm dòng này */
  }

  .modal-content select:focus,
  .modal-content input[type="text"]:focus,
  .modal-content input[type="file"]:focus,
  .modal-content input[type="color"]:focus,
  .modal-content textarea:focus {
      border-color: #ff6b9d;
      outline: none;
  }

  .modal-content textarea {
      min-height: 80px;
      resize: vertical;
      font-family: inherit;
      line-height: 1.4;
      white-space: pre-wrap !important;
      /* Chỉ cho textarea */
  }

  /* Page config */
  .page-config {
      border: 1px solid #eee;
      padding: 15px;
      margin-bottom: 15px;
      border-radius: 8px;
      background: #fafafa;
  }

  .page-config h3 {
      margin: 0 0 10px;
      font-size: 16px;
      color: #333;
  }


  /* Buttons */
  .modal-content button {
      background: linear-gradient(135deg, #b69f08, #181818);
      color: white;
      padding: 12px 24px;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      transition: background 0.2s ease, transform 0.2s ease;
  }

  .modal-content button:hover {
      background: linear-gradient(135deg, #181818, #b69f08);
      transform: translateY(-2px);
  }

  .modal-content button:active {
      transform: translateY(0);
  }

  .page-config {
      border: 1px solid #ddd;
      padding: 10px;
      margin-bottom: 10px;
      border-radius: 5px;
  }

  .page-config h3 {
      margin: 0 0 10px;
  }

  .stars-container {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 5;
      pointer-events: none;
      display: none;
  }

  .star {
      position: absolute;
      width: 2px;
      height: 2px;
      background: white;
      border-radius: 50%;
      animation: twinkle 2s infinite;
  }

  .star.large {
      width: 4px;
      height: 4px;
      box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
  }

  .star.medium {
      width: 3px;
      height: 3px;
      box-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
  }

  .star.small {
      width: 2px;
      height: 2px;
      box-shadow: 0 0 4px rgba(255, 255, 255, 0.4);
  }

  @keyframes twinkle {

      0%,
      100% {
          opacity: 0.3;
          transform: scale(1);
      }

      50% {
          opacity: 1;
          transform: scale(1.2);
      }
  }

  .star:nth-child(2n) {
      animation-delay: 0.5s;
  }

  .star:nth-child(3n) {
      animation-delay: 1s;
  }

  .star:nth-child(4n) {
      animation-delay: 1.5s;
  }

  .star:nth-child(5n) {
      animation-delay: 0.8s;
  }

  .star:nth-child(6n) {
      animation-delay: 1.2s;
  }


  .copyright {
      position: fixed;
      bottom: 10px;
      right: 15px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.3);
      font-family: 'Arial', sans-serif;
      z-index: 5000;
      pointer-events: none;
      text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
      user-select: none;
      transition: opacity 0.3s ease;
  }

  .copyright a {
      color: rgba(255, 255, 255, 0.4);
      font-weight: 600;
  }

  .copyright:hover {
      opacity: 0.8;
  }

  @media screen and (max-height: 500px) and (orientation: landscape) {
      .music-control {
          width: 35px;
          height: 35px;
          font-size: 18px;
          top: 10px;
          right: 10px;
      }

      .settings-button {
          width: 35px;
          height: 35px;
          font-size: 18px;
          top: 10px;
          right: 65px;
      }

      .modal-content {
          width: 89%;
          height: 88vh;
          padding-bottom: 0px;

      }

      #settingsModal .modal-header {
          position: static !important;
          /* Không sticky/fixed */
          background: none !important;
          /* Bỏ background */
          padding: 0px 8px !important;
          /* Giảm padding */
          min-height: 0 !important;
          height: auto !important;
          flex-direction: row !important;
          justify-content: flex-end !important;
          align-items: center !important;
          border-radius: 0 !important;
          box-shadow: none !important;
      }

      #settingsModal .modal-header h2 {
          display: none !important;
          /* Ẩn tiêu đề */
      }

      #settingsModal .close {
          font-size: 22px !important;
          color: #222 !important;
          margin: 0 !important;
          padding: 0 !important;
      }

      .modal-body {
          padding: 15px;
          overflow-y: auto;
          max-height: calc(90vh - 70px);
      }

      .settings-section {
          margin-bottom: 15px;
          padding: 10px;
      }

      .settings-section h3 {
          font-size: 16px;
          margin: 0 0 10px;
          padding-bottom: 5px;
      }

      .form-group {
          margin-bottom: 10px;
      }

      .form-group label {
          font-size: 13px;
          margin-bottom: 3px;
      }

      .form-group input[type="color"] {
          height: 30px;
      }

      .modal-content select,
      .modal-content input[type="text"],
      .modal-content input[type="file"],
      .modal-content input[type="color"],
      .modal-content textarea {
          padding: 6px;
          font-size: 13px;
          margin-bottom: 8px;
      }

      .modal-content textarea {
          min-height: 60px;
      }

      .page-config {
          display: flex !important;
          flex-direction: row !important;
          flex-wrap: wrap !important;
          align-items: flex-start !important;
          gap: 10px !important;
          padding: 6px !important;
          margin-bottom: 8px !important;
          background: #f9f9f9 !important;
          border-radius: 8px !important;
          box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04) !important;
      }

      .page-config textarea {
          flex-basis: 100% !important;
          width: 100% !important;
          margin-left: 0 !important;
          margin-top: 8px !important;
          max-width: 100% !important;
          min-width: 100% !important;
          display: block !important;
      }

      .page-config h3 {
          font-size: 13px !important;
          margin: 0 0 4px 0 !important;
          min-width: 80px !important;
      }

      .page-config-close {
          font-size: 18px !important;
          width: 22px !important;
          height: 22px !important;
          line-height: 22px !important;
          margin-left: 4px !important;
          margin-right: 4px !important;
          cursor: pointer !important;
          align-self: flex-start !important;
      }

      .page-config label {
          font-size: 12px !important;
          margin-bottom: 2px !important;
          min-width: 70px !important;
      }

      .page-config input[type="file"] {
          font-size: 12px !important;
          padding: 2px !important;
          margin-bottom: 2px !important;
          width: 110px !important;
      }

      .page-config img {
          max-width: 70px !important;
          max-height: 70px !important;
          margin: 0 6px 0 0 !important;
          border-radius: 6px !important;
      }

      /* Nút thêm trang mới */
      #pageConfigs>button {
          font-size: 13px !important;
          padding: 7px 14px !important;
          margin-top: 8px !important;
          border-radius: 6px !important;
      }

      .settings-p {
          font-size: 12px;
      }

      /* Optimize form layout for landscape */
      .form-row {
          gap: 10px;
      }

      /* Ensure scrollable content */
      .modal-body {
          -webkit-overflow-scrolling: touch;
          scrollbar-width: thin;
      }

      /* Adjust page info section */
      .modal-body>div:first-child {
          padding: 8px;
          font-size: 12px;
      }

      /* Compact button styling */
      .apply-settings-btn {
          position: sticky;
          bottom: 0;
          background: linear-gradient(135deg, #b69f08, #181818) !important;
          border-radius: 20 !important;
          margin: 0 !important;
          padding: 7px !important;
          margin-bottom: 20px !important;
          width: 100% !important;
          position: static !important;

          box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
      }

      .copyright {
          bottom: 5px;
          right: 10px;
          font-size: 8px;
      }

      #pricingContainer {
          position: fixed !important;
          left: 0 !important;
          right: 0 !important;
          bottom: 0 !important;
          border-radius: 15px 15px 0 0 !important;
          height: 70vh !important;
          overflow-y: auto !important;
          padding-bottom: 0px !important;
          /* Để không che nút */
          z-index: 10000 !important;
      }

      .pricing-header span,
      strong {
          font-size: 12px !important;
      }

      #pricingDetails {
          font-size: 8px !important;
      }

      .pricing-tip label {
          font-size: 10px !important;
      }


      #voucherList {
          max-height: 60px !important;
          font-size: 10px !important;
          margin-bottom: 4px !important;
      }

      #voucherSection {
          padding-top: 4px !important;
          margin-top: 4px !important;
          font-size: 9px !important;
      }

      #voucherSection .voucher-item label {
          font-size: 10px !important;
      }

      #tipAmount {
          width: 55px !important;
          font-size: 11px !important;
          padding: 2px 4px !important;
          margin-left: 4px !important;
      }

      #totalPrice {
          font-size: 14px !important;
      }

      #actionButton {
          position: sticky;
          bottom: 0;
          left: 0;
          right: 0;
          width: 100%;
          padding: 5px !important;
          z-index: 10001;
          border-radius: 0 0 8px 8px;
          box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
          margin: 0;
      }

      #togglePricing {
          font-size: 14px !important;
          top: 2px !important;
          right: 2px !important;
          padding: 2px !important;
          border-radius: 2px !important;
      }

      #googleLoginBtn {
          font-size: 12px !important;
          padding: 6px 10px !important;
          min-width: 90px !important;
          height: 32px !important;
          border-radius: 6px !important;
          margin-bottom: 6px !important;
      }

      #logoutBtn {
          font-size: 12px !important;
          padding: 2px 5px !important;
          min-width: 90px !important;
          height: 32px !important;
          border-radius: 6px !important;
          margin-bottom: 6px !important;
      }

      #userInfo {
          font-size: 11px !important;
          gap: 4px !important;
      }

      #paymentModal>div {
          width: 50vw !important;
          padding: 8px !important;
          border-radius: 8px !important;
          margin: 2vw auto !important;
      }

      #paymentModal iframe {
          height: 36vw !important;
          min-height: 36vw !important;
          max-height: 36vh !important;
      }

      #paymentModal button {
          top: 6px !important;
          right: 6px !important;
          font-size: 18px !important;
      }

      .success-notification-popup {
          max-width: 90vw !important;
          width: 90vw !important;
          padding: 10px !important;
          font-size: 13px !important;
          top: 50% !important;
          left: 50% !important;
          transform: translate(-50%, -50%) !important;
      }

      .success-notification-popup h3 {
          font-size: 14px !important;
          margin-bottom: 5px !important;
      }

      .success-notification-popup button {
          padding: 2px 5px !important;
          font-size: 13px !important;
      }

      /* Payment Method Section Responsive for Landscape Mobile */
      #paymentMethodSection {
          margin-top: 4px !important;
          padding-top: 4px !important;
      }

      #paymentMethodSection > div:first-child {
          margin-bottom: 4px !important;
      }

      #paymentMethodSection > div:first-child span {
          font-size: 10px !important;
      }

      #paymentMethodSection > div:first-child strong {
          font-size: 10px !important;
      }

      #paymentMethodSection > div:last-child {
          gap: 4px !important;
      }

      .payment-method-container {
          padding: 4px !important;
          border-radius: 4px !important;
      }

      .payment-method-container label {
          font-size: 9px !important;
      }

      .payment-method-container input[type="radio"] {
          transform: scale(1.0) !important;
          margin-right: 6px !important;
      }

      .payment-method-container strong {
          font-size: 9px !important;
      }

      .payment-method-container div[style*="font-size: 11px"] {
          font-size: 7px !important;
      }

      .payment-method-container img {
          width: 12px !important;
          height: 12px !important;
          margin-right: 4px !important;
      }

      .payment-method-container span[style*="font-size: 16px"] {
          font-size: 12px !important;
          margin-right: 4px !important;
      }

  }

  /* Settings hint styling */
  .settings-hint {
      position: fixed;
      top: 70px;
      right: 90px;
      z-index: 10002;
      display: flex;
      align-items: center;
      gap: 8px;
      opacity: 0;
      animation: showHint 3s ease-in-out forwards;
      pointer-events: none;
  }

  .hint-text {
      background: rgba(0, 0, 0, 0.8);
      color: white;
      padding: 8px 12px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 500;
      white-space: nowrap;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  @keyframes showHint {
      0% {
          opacity: 0;
          transform: translateY(-10px);
      }
      20% {
          opacity: 1;
          transform: translateY(0);
      }
      80% {
          opacity: 1;
          transform: translateY(0);
      }
      100% {
          opacity: 0;
          transform: translateY(-10px);
      }
  }

  /* Color theme buttons styling */
  .color-theme-buttons {
      display: flex;
      gap: 8px;
      margin-top: 10px;
      flex-wrap: nowrap;
      justify-content: space-between;
  }

  .color-theme-btn {
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 10px 8px;
      border: 2px solid #e0e0e0;
      border-radius: 8px;
      background: white;
      cursor: pointer;
      transition: all 0.3s ease;
      flex: 1;
      min-width: 0;
      text-align: center;
  }

  .color-theme-btn:hover {
      border-color: #ff6b6b;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(255, 107, 107, 0.2);
  }

  .color-theme-btn.active {
      border-color: #ff6b6b;
      background: #fff5f5;
      box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
  }

  .color-preview {
      width: 25px;
      height: 25px;
      border-radius: 50%;
      margin-bottom: 8px;
      border: 2px solid #fff;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  }

  .pink-preview {
      background: linear-gradient(135deg, #ff69b4, #ffffffff);
  }

  .blue-preview {
      background: linear-gradient(135deg, #87ceeb, #4169e1);
  }

  .purple-preview {
      background: linear-gradient(135deg, #dda0dd, #9370db);
  }

  .custom-preview {
      background: linear-gradient(135deg, #ffb6c1, #ffc0cb, #d39b9b);
  }

  .color-theme-btn span {
      font-size: 12px;
      font-weight: 500;
      color: #fdfdfd;
  }

  .color-theme-btn.active span {
      color: #ff6b6b;
      font-weight: 600;
  }