*, *::before, *::after {
  box-sizing: border-box;
}

#excludeSimilarChars {
    width: 28px;
    height: 28px;
    accent-color: #555;
    cursor: pointer;
}

/*Loading Animation*/
.spinner {
    --size: 24px;
    --stroke-width: calc(var(--size) / 6);
    --accent-opacity: .25;
    --color: currentColor;
    position: relative;
    width: var(--size);
    height: var(--size);
    animation: spinner-animation 1s linear infinite;
}

.spinner::before,
.spinner::after {
  content: '';
  position: absolute;
  background-color: var(--color);
  border-radius: 50%;
}

.spinner::before {
  inset: 0;
  opacity: var(--accent-opacity);
}

.spinner::after {
  top: var(--stroke-width);
  left: 50%;
  width: var(--stroke-width);
  height: var(--stroke-width);
  transform: translateX(-50%);
}

@keyframes spinner-animation {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}


img {
    max-width: 100%;
    height: auto;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: #fff;
    color: #333;
    margin: 0 1%;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    box-sizing: border-box;
}

.container {
    background-color: #fff;
    padding: 40px 20px;
    width: 100%;
    text-align: center;
    flex-grow: 1;
}

button {
    max-width: 200px;
    margin-bottom: 10px;
}

/**************header****************/

header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.logo {
    width: 120px;
    margin-bottom: 15px;
}

.logo img {
    max-width: 100%;
    height: 100%;
    object-fit: contain;
}

header .form {
    cursor: pointer;
    margin-right: 20px;
}

.form .link {
    width: 24px;
    height: 24px;
    fill: #333;
    transition: fill 0.3s ease;
}

.form:hover .link {
    fill: #555;
}



h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #222;
}


/*tooltip*/
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 400px;
  background-color: black;
  color: white;
  font-size: 10px;
  text-align: left;
  border-radius: 6px;
  padding: 20px;
  position: absolute;
  z-index: 1;
  left: -300px; /* ツールチップをさらに左に寄せる */
  bottom: 0;
  margin-left: 0;
  transform: translateY(100%);
}

.tooltip:hover .tooltiptext {
  visibility: visible;
}


/**************mainvisual***************/

.mainvisual {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 94%;
    margin-bottom: 50px;
    gap: 20px;
}

.character {
    width: 110px;
}


/*吹き出しデザイン*/
.phrase {
  position: relative;
  display: inline-block;
  margin-left: 5px 0 5px 16px;
  padding: 10px 20px;
  border-radius: 3px;
  background-color: #f5f5f5;
  text-align: center;
  font-weight: 400;
  line-height: 1.5;
  color: #000000;
}

.phrase::after {
  content: "";
  position: absolute;
  top: 49%;
  left: 0;
  border-style: solid;
  border-width: 0 16px 16px 0;
  border-color: transparent #f5f5f5 transparent transparent;
  translate: -100% calc(-50% - 0.4px);
  transform: skew(0, -10deg);
  transform-origin: right;
}

.phrase p {
    font-size: 10px;
}

.subtitle {
    font-size: 1.1em;
    color: #666;
    margin-bottom: 30px;
}

.options-group, .length-group, .result-area {
    margin: 0 auto 25px auto;
    text-align: center;
    max-width: 1000px;
    width: 94%;
}

.option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.option-item:last-child {
    border-bottom: none;
}

.option-item label {
    font-size: 1em;
    color: #444;
}

.option-item label {
    margin-left: 200px;
}

.option-item label {
    margin-right: 200px;
}

#excludeSimilarChars {
    margin-right: 200px;
}

/* Toggle Switch Styles */
.switch {
    position: relative;
    display: inline-block;
    width: 45px;
    height: 25px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 19px;
    width: 19px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
}

input:checked + .slider {
    background-color: #2196F3; /* 少し青みを入れるか、グレーの濃淡にするか */
    background-color: #555; /* 白黒基調に合わせて少し濃いグレーに */
}

input:focus + .slider {
    box-shadow: 0 0 1px #555;
}

input:checked + .slider:before {
    -webkit-transform: translateX(20px);
    -ms-transform: translateX(20px);
    transform: translateX(20px);
}

/* Rounded sliders */
.slider.round {
    border-radius: 25px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Range Slider Styles */
.length-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 25px;
}
.length-group label {
    margin-bottom: 10px;
    font-size: 1em;
    color: #444;
}
#passwordLength {
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
    -webkit-appearance: none;
    height: 8px;
    border-radius: 5px;
    background: #d3d3d3;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}

#passwordLength::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #555;
    cursor: pointer;
}
#passwordLength::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #555;
    cursor: pointer;
}


/* Buttons */
.generate-button, .copy-button {
    background-color: #333;
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 20px;
}

.generate-button:hover, .copy-button:hover {
    background-color: #555;
}

.result-area {
    text-align: center;
    background-color: #f0f0f0;
    padding: 3% 5%;
    border-radius: 5px;
}

.password-display-wrapper {
    position: relative;
    min-height: 90px;
    background-color: #f5f5f5;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-bottom: 15px;
    overflow: hidden; /* For rounded corners */
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.generated-password {
    border: none;
    padding: 12px;
    font-size: 1.2em;
    background-color: #f5f5f5;
    color: #333;
    outline: none;
    cursor: default;
    text-align: center;
    font-family: 'monospace'; /* パスワードは等幅フォントが良い */
}

.toggle-visibility-button {
    background-color: #eee;
    border: none;
    padding: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.toggle-visibility-button:hover {
    background-color: #ddd;
}

.toggle-visibility-button img {
    display: block; /* imgの余計な隙間をなくす */
}

/* Strength Indicator */
.strength-indicator {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.strength-label {
    font-size: 0.9em;
    color: #666;
    margin-right: 10px;
    min-width: 80px; /* レイアウト崩れ防止 */
    text-align: right;
}

.strength-bar-container {
    flex-grow: 1;
    background-color: #eee;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0%; /* JSで制御 */
    background-color: #ccc; /* 弱い時の色 */
    transition: width 0.3s ease, background-color 0.3s ease;
    border-radius: 4px;
}

.strength-text {
    font-size: 0.9em;
    color: #666;
    margin-left: 10px;
    min-width: 60px; /* レイアウト崩れ防止 */
    text-align: left;
}


.note {
    font-size: 0.85em;
    color: #888;
    margin-top: 30px;
}

/* Footer */
footer {
    background-color: #f8f8f8;
    padding: 20px 0 10px 0Kou;
    text-align: center;
    font-size: 0.9em;
    color: #555;
    border-top: 1px solid #eee;
}



/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 30px 8%;
    }

    .character {
        width: 80px;
        margin-bottom: 15px;
    }

    header svg {
        margin-top: 10px;
    }

    .option-item label {
        margin-left: 0;
    }

    .option-item label {
        margin-right: 0;
    }

    #excludeSimilarChars {
        margin-right: 0;
    }
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s, bottom 0.3s;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    bottom: 40px;
}

/* Copy Button Enhancements */
.copy-button  span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.copy-button.success {
    background-color: #2bcbba; /* Green color for success */
}

.copy-button.success:hover {
    background-color: #25a292;
}

.copy-button i {
    transition: transform 0.3s;
}

.copy-button.success i {
    transform: scale(1.2);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: none; /* Initially hidden */
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    max-width: 350px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-character {
    width: 150px;
    margin-bottom: 20px;
    border-radius: 50%;
}

.close-button {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: color 0.2s;
}

.close-button:hover {
    color: #333;
}

.modal-overlay .mainvisual .phrase p {
    font-size: 10px;
}

#modal-message {
    font-size: 1.1em;
    color: #333;
    margin: 0;
    margin-bottom: 20px;
}

.modal-result-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
    margin-top: 10px;
}

.modal-result-area .generated-password {
    flex-grow: 1;
    font-size: 1em; /* モーダル用に少し調整 */
    padding: 10px;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
}

.modal-result-area .copy-button {
    flex-shrink: 0;
    width: auto; /* 幅を自動調整 */
    padding: 10px 15px;
    font-size: 1em;
    margin-bottom: 0; /* 下マージンをリセット */
}

/* Notion Modal Styles */
.notion-modal-content {
    max-width: 800px;
    width: 95%;
    margin: 0;
    max-height: 90vh;
    overflow-y: auto;
}

.notion-modal-content iframe {
    border: none;
}

/* Site Footer */
.site-footer {
    background-color: #fff;
    color: #555;
    padding: 50px 20px;
    font-size: 0.9em;
    border-top: 1px solid #eee;
}

.footer-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.footer-section {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.site-footer .footer-logo {
    width: 150px;
    margin: 0 auto 20px auto;
}

.site-footer .footer-logo img {
    width: 100%;
}

.footer-about p {
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    color: #666;
}

.site-footer h4 {
    font-size: 1.2em;
    color: #222;
    margin-bottom: 20px;
}

.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer ul li {
    margin-bottom: 10px;
}

.site-footer ul a {
    color: #555;
    text-decoration: none;
    transition: color 0.3s;
}

.site-footer ul a:hover {
    color: #000;
    text-decoration: underline;
}

.footer-bottom {
    padding-top: 30px;
    font-size: 0.85em;
    color: #888;
}

.footer-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}