/* Root Variables - Dark Mode */
:root {
    --bg-color: #081c2d;
    --container-bg: #0f2a40;
    --text-color: #e8f0f8;
    --muted-text: #a0b0c0;
    --accent-color: #2effab;
    --accent-color-rgb: 46, 255, 171;
    --accent-hover: #28e09b;
    --border-color: #1a3e5a;
    --card-bg: rgba(26, 62, 90, 0.5);
    --focus-ring-color: rgba(var(--accent-color-rgb), 0.5);
    --logo-brightness: 100%;
    --footer-text: var(--muted-text);
    --button-bg: var(--accent-color);
    --button-hover: var(--accent-hover);
    --button-text-color: #000;
    --secondary-button-bg: var(--muted-text);
    --secondary-button-hover: var(--text-color);
    --secondary-button-text-color: var(--bg-color);
}

/* Light Mode Styling */
[data-theme="light"] {
    --bg-color: #f8f9fa;
    --container-bg: #ffffff;
    --text-color: #084375;
    --muted-text: #495057;
    --accent-color: #007a5e;
    --accent-color-rgb: 0, 122, 94;
    --accent-hover: #005c46;
    --border-color: #d0d8e0;
    --card-bg: rgba(230, 235, 240, 0.5);
    --focus-ring-color: rgba(var(--accent-color-rgb), 0.5);
    --logo-brightness: 100%;
    --footer-text: var(--muted-text);
    --button-bg: var(--accent-color);
    --button-hover: var(--accent-hover);
    --button-text-color: #fff;
    --secondary-button-bg: var(--muted-text);
    --secondary-button-hover: var(--text-color);
    --secondary-button-text-color: var(--bg-color);
}

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

body {
    font-family: 'Segoe UI', 'Arial', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 30px 15px;
    transition: background-color 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

/* Container */
.container {
    background-color: var(--container-bg);
    padding: 25px;
    border-radius: 12px;
    max-width: 1400px;
    width: 95%;
    margin: 0 auto 30px auto;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    text-align: left;
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.header-left-group {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-grow: 1;
}

.version-shield {
    height: 20px;
    flex-shrink: 0;
}

/* Logo */
.logo {
    width: 60px;
    height: auto;
    margin-bottom: 0;
    filter: brightness(var(--logo-brightness));
    transition: filter 0.3s ease;
    flex-shrink: 0;
}

/* Main page title */
h2 {
    text-align: left;
    color: var(--text-color);
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 0;
    font-size: 1.75rem;
}

p {
    line-height: 1.6;
    margin: 10px 0;
}

/* Focus Ring Styling (Accessibility) */
*:focus-visible {
    outline: 2px solid var(--focus-ring-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--focus-ring-color);
    border-radius: 4px;
}
*:focus:not(:focus-visible) {
  outline: none;
}

/* Page Breaks */
.styled-hr {
    border: none;
    height: 1px;
    background-color: var(--border-color);
    margin: 25px 0;
}

/* Input/Output Areas */
textarea,
.output-box {
    width: 100%;
    height: 200px;
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    font-size: 0.95rem;
    margin: 10px 0;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
}

textarea:focus,
.output-box:focus {
     border-color: var(--accent-color);
     /* focus-visible handles the ring */
}

textarea {
    resize: vertical;
}

.output-box {
    overflow-y: auto;
    white-space: pre-wrap;
    text-align: left;
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    margin-bottom: 5px;
}

/* Subheadings */
h3 {
    margin: 0;
    color: var(--text-color);
    font-weight: 500;
}

/* Buttons */
.button {
    background-color: var(--button-bg);
    color: var(--button-text-color);
    border: none;
    padding: 10px 18px;
    margin-top: 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.1s ease, box-shadow 0.2s ease;
    white-space: nowrap;
    display: inline-block;
    width: auto;
    margin-right: 10px;
}
.button:last-of-type {
    margin-right: 0;
}

.button:hover:not(:disabled) {
    background-color: var(--button-hover);
    box-shadow: 0 2px 5px rgba(var(--accent-color-rgb), 0.3);
}

.button:active:not(:disabled) {
    transform: scale(0.98);
}

.button:disabled {
    background-color: var(--border-color);
    color: var(--muted-text);
    cursor: not-allowed;
    opacity: 0.7;
}

/* No specific styles needed for these IDs */
/* #copy-button, #download-button {} */

/* Clear Button specific style */
.clear-button {
    background-color: var(--secondary-button-bg);
    color: var(--secondary-button-text-color);
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.1s ease;
    white-space: nowrap;
}

.clear-button:hover:not(:disabled) {
     background-color: var(--secondary-button-hover);
}

.clear-button:active:not(:disabled) {
    transform: scale(0.98);
}

/* Theme Toggle Switch */
.theme-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    margin-bottom: 15px;
    justify-content: center;
}

.toggle-label {
    color: var(--muted-text);
    font-size: 0.9em;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    background-color: var(--muted-text);
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
    vertical-align: middle;
    padding: 0;
}

.toggle-switch::before {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    top: 3px;
    left: 3px;
    background-color: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    transition: transform 0.3s ease;
}

/* Light mode active state */
.toggle-switch[aria-checked="true"] {
    background-color: var(--accent-color);
}

/* Knob position in light mode */
.toggle-switch[aria-checked="true"]::before {
    transform: translateX(20px);
}

/* Help Section */
.help-icon-button {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 15px;
    margin: 15px 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-color);
    background-color: transparent;
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.help-icon-button svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}
.help-icon-button[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.help-icon-button:hover {
    background-color: rgba(var(--accent-color-rgb), 0.1);
}

.help-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out, margin-top 0.4s ease-out;
    background: rgba(var(--accent-color-rgb), 0.05);
    color: var(--text-color);
    padding: 0 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-top: 0;
}

.help-container.open {
    max-height: 500px;
    padding: 15px 20px;
    margin-top: 10px;
}
.help-container p {
    margin: 8px 0;
    font-size: 0.95rem;
}
.help-container p code {
    background-color: rgba(0,0,0,0.2);
    padding: 2px 5px;
    border-radius: 4px;
    font-size: 0.9em;
}

/* Drag and Drop File Upload */
.drop-area {
    border: 2px dashed var(--border-color);
    padding: 20px;
    width: 100%;
    border-radius: 8px;
    text-align: center;
    color: var(--muted-text);
    margin: 15px 0;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.drop-area:hover,
.drop-area.dragover {
    background-color: rgba(var(--accent-color-rgb), 0.1);
    border-color: var(--accent-color);
}

.file-label {
    font-weight: 500;
    color: var(--accent-color);
    cursor: pointer;
    text-decoration: underline;
}
.file-label:hover {
    color: var(--accent-hover);
}

/* Requirement Warning */
.requirement-warning {
    border: 1px solid #ffcc00;
    background-color: rgba(255, 204, 0, 0.1);
    color: #ffcc00;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    text-align: left;
}

.requirement-warning h3 {
    margin-top: 0;
    color: #ffcc00;
    font-weight: 600;
}

.requirement-warning p {
    color: #e8f0f8;
    margin: 5px 0;
}
[data-theme="light"] .requirement-warning p {
    color: #084375;
}

.requirement-warning ul {
    margin-top: 10px;
    padding-left: 20px;
    list-style: disc;
}

.requirement-warning li {
     margin-bottom: 5px;
     color: #e8f0f8;
}
[data-theme="light"] .requirement-warning li {
    color: #084375;
}

.requirement-warning a {
    color: #ffcc00;
    text-decoration: underline;
    font-weight: 500;
}

.requirement-warning a:hover {
    color: #e6b800;
}

/* Footer */
footer {
    margin-top: 40px;
    padding: 20px 0;
    text-align: center;
    width: 100%;
    color: var(--footer-text);
    font-size: 0.9em;
    border-top: 1px solid var(--border-color);
}

footer .container {
    max-width: 1400px;
    margin: 0 auto;
    background: none;
    box-shadow: none;
    padding: 0;
    text-align: center;
}

/* Footer paragraphs inherit color/size from footer */
footer p {
    text-align: center;
    margin: 10px 0;
    line-height: 1.6;
}

.social-links {
    margin-bottom: 15px;
    text-align: center;
}

.social-links h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--text-color);
    text-align: center;
}

.social-links a {
    color: var(--accent-color);
    margin: 0 10px;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.social-links a:hover {
    text-decoration: underline;
    color: var(--accent-hover);
}

footer .styled-hr {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-color), transparent);
    margin: 25px 0;
}

/* Supporters Section */
.supporters-section {
    margin-top: 30px;
    padding: 20px;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.supporters-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.supporters-section h2 {
    text-align: center;
    margin-bottom: 0;
    color: var(--accent-color);
    font-weight: 600;
    width: 100%;
    font-size: 1.5rem;
}

.supporters-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.supporter-name {
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.9em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
    flex-grow: 0;
    flex-basis: 160px;
    color: var(--text-color);
    border: 3px solid transparent;
}

/* Tier Styling */
.supporter-name[data-tier="0"] {
    color: #ffffff;
    border-color: #a7a7a7;
}

.supporter-name[data-tier="1"] {
    color: #faa61a;
    border-color: #c98716;
}

.supporter-name[data-tier="2"] {
    color: #9032e2;
    border-color: #601f99;
}

.supporter-name[data-tier="3"] {
    color: #9cff9a;
    border-color: #6fb86e;
}

.support-button-container {
    text-align: center;
    margin-top: 20px;
}

.support-link-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: #000;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

[data-theme="light"] .support-link-button {
    color: #fff;
}

.support-link-button:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 2px 5px rgba(var(--accent-color-rgb), 0.3);
    text-decoration: none;
}

.support-link-button:active {
    transform: scale(0.98);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        width: 98%;
        padding: 15px;
    }

    h2 {
        font-size: 1.5rem;
    }

    textarea, .output-box {
        height: 150px;
    }

    .button {
        padding: 10px 15px;
        font-size: 0.9rem;
        width: 100%; /* Stack buttons on mobile */
        margin-bottom: 10px;
        margin-right: 0;
    }
    .button:last-of-type {
        margin-bottom: 0;
    }

    .input-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .clear-button {
        align-self: flex-end; /* Move clear button right */
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .version-shield {
        margin-top: 5px;
    }
}