:root {
    --primary-color: #6f42c1;
    --secondary-color: #6c757d;
    --accent-color: #007bff;
    --background-color: #f4f7f6;
    --surface-color: #ffffff;
    --text-color: #333;
    --text-secondary: #5a5a5a;
    --border-color: #e0e0e0;
    --input-bg-color: #fcfcfc;
    --button-hover-bg-primary: #5a34a8;
    --button-hover-bg-secondary: #545b62;
    --button-hover-bg-accent: #0056b3;
    --shadow-color-light: rgba(0, 0, 0, 0.08);
    --shadow-color-dark: rgba(0, 0, 0, 0.3);
}
body.dark-mode {
    --primary-color: #a78bfa;
    --secondary-color: #b0b8bf;
    --accent-color: #00c4ff;
    --background-color: #1a1a2e;
    --surface-color: #2a2a4a;
    --text-color: #e0e0e0;
    --text-secondary: #c0c0c0;
    --border-color: #505070;
    --input-bg-color: #3a3a5a;
    --button-hover-bg-primary: #8b6cdb;
    --button-hover-bg-secondary: #95a5a6;
    --button-hover-bg-accent: #0099e6;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.5s ease, color 0.5s ease;
}
body.nav-open {
    overflow: hidden;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
header {
    background-color: var(--surface-color);
    color: var(--text-color);
    padding: 0.8rem 0;
    box-shadow: 0 2px 5px var(--shadow-color-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
body.dark-mode header {
     box-shadow: 0 2px 8px var(--shadow-color-dark);
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    flex-direction: row;
}
.logo {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: bold;
    padding: 5px 0;
    order: 1;
}
.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    order: 2;
    margin-left: 0;
}
.nav-menu {
    flex-basis: 100%;
    display: none;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.4s ease-in-out, opacity 0.3s ease;
    opacity: 0;
    background-color: var(--surface-color);
    box-shadow: 0 4px 8px var(--shadow-color-light);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    margin-top: 15px;
    order: 3;
    left: 0;
    right: 0;
    width: auto;
    border-radius: 8px;
}
body.dark-mode .nav-menu {
    box-shadow: 0 4px 8px var(--shadow-color-dark);
}
.nav-menu.is-active {
    display: block;
    max-height: 80vh;
    overflow-y: auto;
    opacity: 1;
}
.nav-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    padding: 15px 0;
}
.nav-menu li {
    margin: 8px 0;
    text-align: center;
}
.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
    padding: 8px 0;
    display: block;
}
.nav-menu a:hover {
    color: var(--primary-color);
}
.hamburger {
    display: block;
    cursor: pointer;
    border: none;
    background: none;
    padding: 10px;
    z-index: 1100;
}
.hamburger-box {
  display: inline-block;
  position: relative;
  width: 24px;
  height: 24px;
}
.hamburger-inner {
  display: block;
  top: 50%;
  margin-top: -2px;
}
.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 24px;
  height: 3px;
  background-color: var(--text-color);
  border-radius: 4px;
  position: absolute;
  transition-property: transform, opacity;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
.hamburger-inner::before {
  top: -8px;
  transition: transform 0.15s ease 0.075s, opacity 0.15s ease 0.075s, background-color 0.15s ease;
}
.hamburger-inner::after {
  bottom: -8px;
   transition: transform 0.15s ease 0.075s, opacity 0.15s ease 0.075s, background-color 0.15s ease;
}
.hamburger.is-active .hamburger-inner {
  transform: translate3d(0, 8px, 0) rotate(45deg);
}
.hamburger.is-active .hamburger-inner::before {
  opacity: 0;
  transform: rotate(-45deg) translate3d(-5.71429px, -6px, 0);
}
.hamburger.is-active .hamburger-inner::after {
  transform: translate3d(0, -16px, 0) rotate(-90deg);
}
.dark-mode-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 10px;
    transition: color 0.3s ease, transform 0.2s ease;
    margin-right: 0;
}
.dark-mode-toggle:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}
body.dark-mode .hamburger-inner,
body.dark-mode .hamburger-inner::before,
body.dark-mode .hamburger-inner::after,
body.dark-mode .dark-mode-toggle {
    background-color: var(--text-color);
    color: var(--text-color);
}
main {
    flex-grow: 1;
    padding: 25px 0;
}
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #8a2be2 100%);
    color: #ffffff;
    margin-bottom: 50px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    isolation: isolate;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.1);
    z-index: -1;
}
.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}
.hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}
.cta-buttons .button {
    margin: 0 10px;
}
.tools-section, .tool-page-section {
    padding: 40px 0;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}
.tool-page-section .container {
    position: relative;
    z-index: 1;
}
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, var(--primary-color) 0%, #8a2be2 100%);
    opacity: 0.1;
}
body.dark-mode #particles-js {
    background: linear-gradient(135deg, var(--background-color) 0%, var(--surface-color) 100%);
    opacity: 0.2;
}
.tools-section h2, .tool-page-section h1 {
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-color);
    font-size: 2.5em;
}
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}
.tool-card, .form-card {
    background-color: var(--surface-color);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px var(--shadow-color-light);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}
body.dark-mode .tool-card, body.dark-mode .form-card {
    box-shadow: 0 5px 15px var(--shadow-color-dark);
}
.tool-card {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px var(--shadow-color-light);
    border-color: var(--primary-color);
}
body.dark-mode .tool-card:hover {
     box-shadow: 0 10px 20px var(--shadow-color-dark);
     border-color: var(--primary-color);
}
.tool-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.6em;
}
.tool-card p {
    color: var(--text-secondary);
    font-size: 1em;
}
.form-card {
    max-width: 650px;
    margin: 30px auto;
    text-align: left;
    padding: 35px;
}
.input-group {
    margin-bottom: 20px;
}
.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--text-color);
}
.input-group input[type="text"],
.input-group input[type="number"],
.input-group input[type="color"],
.input-group textarea,
.input-group input[type="password"] {
    width: 100%;
    padding: 14px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}
.input-group input[type="text"]:focus,
.input-group input[type="number"]:focus,
.input-group input[type="color"]:focus,
.input-group textarea:focus,
.input-group input[type="password"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(111, 66, 193, 0.25);
}
body.dark-mode .input-group input[type="text"]:focus,
body.dark-mode .input-group input[type="number"]:focus,
body.dark-mode .input-group input[type="color"]:focus,
body.dark-mode .input-group textarea:focus,
body.dark-mode .input-group input[type="password"]:focus {
     box-shadow: 0 0 0 0.25rem rgba(167, 139, 250, 0.25);
}
textarea {
    resize: vertical;
    min-height: 120px;
}
.password-input-wrapper {
    /* Removed flexbox from here as the button is now below */
    width: 100%;
    /* This wrapper now primarily groups the input and the toggle button */
}
.password-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px; /* Fixed width for a square button */
    height: 45px; /* Fixed height for a square button */
    margin-top: 10px; /* Space below the input field */
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg-color);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2em;
    user-select: none;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.password-toggle:hover {
    background-color: var(--button-hover-bg-secondary);
    color: white;
    border-color: var(--button-hover-bg-secondary);
}
body.dark-mode .password-toggle:hover {
    background-color: var(--button-hover-bg-secondary);
    color: white;
    border-color: var(--button-hover-bg-secondary);
}
.button {
    display: inline-block;
    padding: 12px 25px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease, opacity 0.3s ease, transform 0.1s ease;
    font-weight: 500;
}
.button.primary {
    background-color: var(--primary-color);
    color: white;
}
.button.primary:hover {
    background-color: var(--button-hover-bg-primary);
}
.button.secondary {
    background-color: var(--secondary-color);
    color: white;
}
.button.secondary:hover {
    background-color: var(--button-hover-bg-secondary);
}
.button:active {
    transform: scale(0.98);
}
.button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.button-group {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.button-group .button {
    flex-grow: 1;
    min-width: 120px;
    justify-content: center;
}
.qris-output, .short-url-output, .base64-output, .status-checker-output, .headers-output, .obfuscator-output, .ascii-output, .youtube-output, .dns-output {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}
.qris-output img {
    max-width: 250px;
    height: auto;
    display: block;
    margin: 0 auto 20px auto;
    border: 6px solid var(--border-color);
    border-radius: 8px;
    background-color: white;
}
body.dark-mode .qris-output img {
    border-color: var(--surface-color);
}
.qris-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}
.qris-options .input-group {
    margin-bottom: 0;
}
.qris-options label {
    font-size: 0.9em;
    font-weight: normal;
}
.short-url-output label, .base64-output label, .obfuscator-output label, .ascii-output label, .youtube-output label, .dns-output label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: var(--text-color);
    text-align: left;
}
.short-url-input-group, .base64-input-group, .obfuscator-output .base64-input-group, .ascii-output .ascii-output-group, .youtube-output .download-links, .dns-output .dns-result {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-start;
    flex-direction: column;
    width: 100%;
}
.short-url-input-group input[type="text"], .base64-input-group input[type="text"], .base64-input-group textarea, .obfuscator-output textarea, .ascii-output-group textarea, .dns-output .dns-result textarea {
    flex-grow: 1;
    min-width: 0;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 4px;
}
.status-checker-output {
    text-align: left;
}
.status-checker-output strong {
    color: var(--primary-color);
}
.status-checker-output p {
    margin-bottom: 10px;
    color: var(--text-secondary);
}
.headers-output, .dns-output {
     text-align: left;
}
.headers-output h3, .headers-output h4, .dns-output h3, .dns-output h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}
.headers-output p, .dns-output p {
     margin-bottom: 10px;
     color: var(--text-secondary);
}
.headers-output strong {
    color: var(--accent-color);
}
.headers-output pre, .ascii-output pre, .dns-output pre {
    background-color: var(--input-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 15px;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-size: 0.9em;
    max-height: none;
    overflow-y: visible;
     color: var(--text-color);
     text-align: left;
     font-family: monospace, 'Courier New', Courier;
}
.headers-output .status-success {
    color: var(--accent-color);
}
.headers-output .status-error {
    color: var(--primary-color);
}
.headers-output .status-info {
    color: var(--text-secondary);
}
.status-text {
    margin-top: 15px;
    font-size: 0.9em;
    color: var(--text-secondary);
}
.hidden {
    display: none !important;
}
footer {
    background-color: var(--surface-color);
    color: var(--text-secondary);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 50px;
    box-shadow: 0 -2px 5px var(--shadow-color-light);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
body.dark-mode footer {
     box-shadow: 0 -2px 8px var(--shadow-color-dark);
}
.error-container {
    text-align: center;
    padding: 80px 20px;
}
.error-container h1 {
    font-size: 5em;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}
.error-container p {
    font-size: 1.3em;
    color: var(--text-secondary);
    margin-bottom: 40px;
}
.error-container .button {
    font-size: 1.1em;
    padding: 15px 30px;
}
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.9);
  align-items: center;
  justify-content: center;
}
.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
}
.modal-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
  cursor: pointer;
  z-index: 2001;
}
.modal-close:hover,
.modal-close:focus {
  color: #bbb;
  text-decoration: none;
  cursor: pointer;
}
.input-group select {
    width: 100%;
    padding: 14px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23333" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/><path d="M0 0h24v24H0z" fill="none"/></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
}
body.dark-mode .input-group select {
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23e0e0e0" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/><path d="M0 0h24v24H0z" fill="none"/></svg>');
}
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(111, 66, 193, 0.25);
}
body.dark-mode .input-group select:focus {
     box-shadow: 0 0 0 0.25rem rgba(167, 139, 250, 0.25);
}
.input-group input[type="color"] {
    padding: 8px 12px;
    height: 45px;
}
.dns-record-block {
    margin-bottom: 15px;
    padding: 15px;
    background-color: var(--input-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}
.dns-record-block h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--accent-color);
    font-size: 1.1em;
}
.dns-record-block ul {
    list-style: none;
    padding: 0;
}
.dns-record-block li {
    margin-bottom: 5px;
    font-size: 0.95em;
    color: var(--text-color);
    word-break: break-all;
}
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    background: var(--border-color);
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
    border-radius: 5px;
}
input[type="range"]:hover {
    opacity: 1;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}
@media (max-width: 768px) {
    .hero {
        padding: 60px 20px;
    }
    .hero h1 {
        font-size: 2.5em;
    }
    .hero p {
        font-size: 1.1em;
    }
    main {
        padding: 20px 0;
    }
    .tools-section h2, .tool-page-section h1 {
        font-size: 2em;
        margin-bottom: 30px;
    }
    .tool-grid {
        gap: 20px;
    }
     .tool-card, .form-card {
        padding: 25px;
    }
    .form-card {
        padding: 30px;
    }
    .input-group input[type="text"],
    .input-group input[type="number"],
    .input-group input[type="color"],
    .input-group textarea,
    .input-group select,
    .input-group input[type="password"] {
        font-size: 0.95rem;
        padding: 12px;
    }
     .password-toggle {
        width: 40px; /* Adjusted for smaller screens */
        height: 40px; /* Adjusted for smaller screens */
        margin-top: 8px;
    }
     .button {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
     .button-group {
        flex-direction: column;
        gap: 10px;
     }
    .qris-output {
        margin-top: 20px;
        padding-top: 20px;
    }
    .qris-output img {
        max-width: 200px;
    }
    .qris-options {
        grid-template-columns: 1fr;
    }
    .short-url-input-group, .base64-input-group, .obfuscator-output .base64-input-group, .ascii-output .ascii-output-group, .youtube-output .download-links, .dns-output .dns-result {
         flex-direction: column;
         gap: 15px;
    }
     .error-container h1 {
        font-size: 3em;
    }
    .error-container p {
        font-size: 1em;
        margin-bottom: 25px;
    }
     .error-container .button {
         font-size: 0.9rem;
         padding: 10px 20px;
     }
     .headers-output pre, .ascii-output pre, .dns-output pre {
        font-size: 0.85em;
     }
     .response-section {
         margin-top: 20px;
         padding-top: 20px;
     }
}
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    header {
        padding: 0.6rem 0;
    }
    .logo {
        font-size: 1.6rem;
    }
    .hero {
        padding: 40px 15px;
        margin-bottom: 30px;
        border-radius: 8px;
    }
     .hero h1 {
        font-size: 2em;
    }
     .hero p {
        font-size: 0.9em;
    }
    .cta-buttons .button {
        margin: 5px 0;
        display: block;
        width: 100%;
    }
    .tools-section h2, .tool-page-section h1 {
        font-size: 1.8em;
        margin-bottom: 25px;
    }
     .tool-card, .form-card {
        padding: 20px;
    }
     .form-card {
        padding: 25px;
        margin: 20px auto;
    }
    .input-group input[type="text"],
    .input-group input[type="number"],
    .input-group input[type="color"],
    .input-group textarea,
    .input-group select,
    .input-group input[type="password"] {
        font-size: 0.9rem;
        padding: 10px;
    }
     .password-toggle {
        width: 35px; /* Adjusted for smaller screens */
        height: 35px; /* Adjusted for smaller screens */
        margin-top: 6px;
    }
     .button {
        padding: 10px 18px;
        font-size: 0.9rem;
    }
     .button-group {
        flex-direction: column;
        gap: 10px;
     }
     .qris-output img {
        max-width: 180px;
     }
     .qris-options {
        grid-template-columns: 1fr;
     }
     .short-url-input-group, .base64-input-group, .obfuscator-output .base64-input-group, .ascii-output .ascii-output-group, .youtube-output .download-links, .dns-output .dns-result {
         flex-direction: column;
         gap: 15px;
    }
     .error-container h1 {
        font-size: 3em;
    }
    .error-container p {
        font-size: 1em;
        margin-bottom: 25px;
    }
     .error-container .button {
         font-size: 0.9rem;
         padding: 10px 20px;
     }
     .headers-output pre, .ascii-output pre, .dns-output pre {
        font-size: 0.8em;
     }
}