html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: #0071c1;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}
.split-btn {
    background: var(--bg-surface-solid);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    width: 100%;
    border-radius: var(--radius-md);
    font-weight: 600;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

    .split-btn:hover {
        border-color: var(--brand-primary);
        color: var(--brand-primary);
    }
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}/* Modern Design System Tokens */
:root {
    /* Light Theme */
    --bg-main: #f8fafc;
    --bg-surface: rgba(255, 255, 255, 0.7);
    --bg-surface-solid: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: rgba(226, 232, 240, 0.8);
    
    --brand-primary: #6366f1;
    --brand-primary-hover: #4f46e5;
    --brand-gradient: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --glass-blur: 12px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', ui-monospace, SFMono-Regular, monospace;
    
    --editor-bg: #ffffff;
    --editor-border: #e2e8f0;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-main: #0b0f19;
    --bg-surface: rgba(30, 41, 59, 0.6);
    --bg-surface-solid: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: rgba(51, 65, 85, 0.8);
    
    --brand-primary: #818cf8;
    --brand-primary-hover: #6366f1;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);

    --editor-bg: #1e293b;
    --editor-border: #334155;
}

/* Base Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Glassmorphism Utilities */
.glass-effect {
    background: var(--bg-surface);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
}

.gradient-text {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.75rem 1.5rem;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--brand-primary);
}

.search-bar-container {
    margin: 2rem auto;
    max-width: 600px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s;
}

.search-input:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.25rem;
}

.category-pills {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.pill-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    border: 1px solid var(--border-color);
    background: var(--bg-surface-solid);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.pill-btn.active, .pill-btn:hover {
    background: var(--brand-primary);
    color: white;
    border-color: var(--brand-primary);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--brand-primary);
}

.btn-primary {
    background: var(--brand-gradient);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: transform 0.2s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.icon-btn:hover {
    background-color: var(--border-color);
    transform: rotate(15deg);
}

/* Theme Toggle Icons Logic */
[data-theme="light"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: none; }

/* Layout Containers */
.container, .container-fluid {
    width: 100%;
    margin: 0 auto;
    padding: 1rem;
}

.container {
    max-width: 1000px;
}

.container-fluid {
    max-width: 1400px;
}

/* Dashboard Hero */
.hero {
    text-align: center;
    padding: 2.5rem 0 1.5rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
    padding-bottom: 2rem;
}

.tool-card {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    cursor: pointer;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-primary);
}

.tool-icon-wrapper {
    background: var(--bg-surface-solid);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--brand-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: background-color 0.3s ease;
}

.tool-card:hover .tool-icon-wrapper {
    background: var(--brand-primary);
    color: white;
}

.tool-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.tool-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* --- TOOL PAGE SPECIFIC --- */

.tool-header {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--brand-primary);
}

.tool-workspace {
    display: flex;
    gap: 1rem;
    align-items: stretch;
    height: calc(100vh - 200px);
    min-height: 400px;
}

.editor-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-md);
}

.editor-header {
    background: var(--bg-surface-solid);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.action-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.convert-btn {
    background: var(--brand-gradient);
    color: white;
    border: none;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.convert-btn:hover {
    transform: scale(1.1) rotate(180deg);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.convert-btn:active {
    transform: scale(0.95);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.convert-btn.is-loading {
    pointer-events: none;
    transform: scale(0.95);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.9);
}

.convert-btn.is-loading ion-icon {
    animation: spin 0.8s linear infinite;
}

.editor-pane.fullscreen-active {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1050;
    height: 100vh !important;
    border-radius: 0;
}

.icon-action-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease, transform 0.2s ease;
}

.icon-action-btn:hover {
    color: var(--brand-primary);
    transform: scale(1.1);
}

/* CodeMirror Customizations */
.CodeMirror {
    flex: 1;
    height: 100% !important;
    font-family: var(--font-mono) !important;
    font-size: 14px;
    padding: 1rem 0;
    background: var(--editor-bg) !important;
    color: var(--text-primary) !important;
}

.CodeMirror-gutters {
    background: var(--editor-bg) !important;
    border-right: 1px solid var(--border-color) !important;
}

/* CodeMirror Dark Mode Overrides for light base theme */
[data-theme="dark"] .CodeMirror-cursor { border-left-color: #fff !important; }

/* Responsive */
@media (max-width: 900px) {
    .tool-workspace {
        flex-direction: column;
        height: auto;
    }
    
    .editor-pane {
        height: 400px;
    }

    .convert-btn {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .convert-btn:hover {
        transform: scale(1.1) rotate(270deg);
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }
    .nav-container {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    /* Targets the inner div containing the nav links and actions */
    .nav-container > div {
        width: 100%;
        justify-content: space-between !important;
        flex-wrap: wrap;
        gap: 0.5rem !important;
    }
    .nav-links {
        gap: 1rem;
        font-size: 0.95rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero-title {
        font-size: 2.2rem;
    }
}

.responsive-stack {
    display: flex;
    gap: 2rem;
    align-items: stretch;
}

@media (max-width: 900px) {
    .responsive-stack {
        flex-direction: column !important;
    }
    .responsive-stack > div {
        width: 100% !important;
        flex: 1 1 auto !important;
    }
}