@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Light Theme Colors */
    --lt-primary: #388BFD;
    --lt-secondary: #A371F7;
    --lt-bg-primary: #FFFFFF;
    --lt-bg-secondary: #F6F8FA;
    --lt-text-primary: #1F2328;
    --lt-text-secondary: #656D76;
    --lt-border-primary: #D0D7DE;
    --lt-border-secondary: #EAECEF;

    /* Dark Theme Colors */
    --dt-primary: #58A6FF;
    --dt-secondary: #BC8CFF;
    --dt-bg-primary: #0D1117;
    --dt-bg-secondary: #161B22;
    --dt-text-primary: #E6EDF3;
    --dt-text-secondary: #8B949E;
    --dt-border-primary: #30363D;
    --dt-border-secondary: #21262D;

    /* Default to Light Theme */
    --primary-accent: var(--lt-primary);
    --secondary-accent: var(--lt-secondary);
    --background-primary: var(--lt-bg-primary);
    --background-secondary: var(--lt-bg-secondary);
    --text-primary: var(--lt-text-primary);
    --text-secondary: var(--lt-text-secondary);
    --border-primary: var(--lt-border-primary);
    --border-secondary: var(--lt-border-secondary);
}

html.dark {
    --primary-accent: var(--dt-primary);
    --secondary-accent: var(--dt-secondary);
    --background-primary: var(--dt-bg-primary);
    --background-secondary: var(--dt-bg-secondary);
    --text-primary: var(--dt-text-primary);
    --text-secondary: var(--dt-text-secondary);
    --border-primary: var(--dt-border-primary);
    --border-secondary: var(--dt-border-secondary);
}

body {
    font-family: var(--font-sans);
    background-color: var(--background-secondary);
    color: var(--text-primary);
}

/* Showcase Nav Tabs */
.tab-button {
    flex: 1;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: background-color 0.2s, color 0.2s;
    border: 2px solid transparent;
}
.tab-button.active {
    background-color: var(--background-primary);
    color: var(--text-primary);
    font-weight: 600;
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}
.tab-button:not(.active):hover {
    color: var(--text-primary);
}

/* Mockup Window */
.app-window {
    background-color: var(--background-primary);
    border: 1px solid var(--border-primary);
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.05);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 70vh;
}
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-primary);
}
.app-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.mockup-section {
    transition: opacity 0.3s ease-in-out;
}
.mockup-section.hidden {
    display: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
    outline: none;
}
.btn:focus-visible {
    box-shadow: 0 0 0 2px var(--background-primary), 0 0 0 4px var(--primary-accent);
}
.btn-icon {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
}
.btn-primary {
    background-color: var(--primary-accent);
    color: white;
}
.btn-primary:hover {
    opacity: 0.9;
}
html.dark .btn-primary {
    color: var(--dt-bg-primary);
}
.btn-secondary {
    background-color: var(--background-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}
.btn-secondary:hover {
    background-color: var(--border-secondary);
}
.btn-tertiary {
    background-color: transparent;
    color: var(--primary-accent);
}
.btn-tertiary:hover {
    background-color: hsla(from var(--primary-accent) h s l / 0.1);
}
.btn-icon-only {
    padding: 0.5rem;
    border-radius: 0.375rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}
.btn-icon-only:hover {
    background-color: var(--background-secondary);
    color: var(--text-primary);
}

/* Inputs and Fields */
.input-field {
    width: 100%;
    background-color: var(--background-secondary);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    transition: all 0.2s;
}
.input-field::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}
.input-field:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 1px var(--primary-accent);
}
select.input-field {
    padding-right: 2rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23656D76' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
}
html.dark select.input-field {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%238B949E' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
}

/* Code Panels */
.code-panel {
    background-color: var(--background-secondary);
    border-radius: 0.5rem;
    border: 1px solid var(--border-primary);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.code-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border-primary);
    background-color: var(--background-primary);
}
.code-block {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    padding: 1rem;
    display: block;
    line-height: 1.6;
    overflow: auto;
    flex-grow: 1;
}

/* Syntax Highlighting */
.hl-key { color: #d73a49; }
.hl-func { color: #6f42c1; }
.hl-param { color: #e36209; }
.hl-str { color: #032f62; }
.hl-num { color: #005cc5; }
.hl-com { color: #6a737d; }
.hl-const { color: #005cc5; }

html.dark .hl-key { color: #ff7b72; }
html.dark .hl-func { color: #d2a8ff; }
html.dark .hl-param { color: #e6edf3; }
html.dark .hl-str { color: #a5d6ff; }
html.dark .hl-num { color: #79c0ff; }
html.dark .hl-com { color: #8b949e; }
html.dark .hl-const { color: #79c0ff; }

/* Theme Toggle Switch */
.theme-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 2rem;
    width: 3.5rem;
    cursor: pointer;
}
.theme-switch-track {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--border-primary);
    border-radius: 9999px;
    transition: background-color 0.2s ease-in-out;
}
html.dark .theme-switch-track {
    background-color: var(--dt-border-primary);
}
.theme-switch-thumb {
    position: absolute;
    top: 0.25rem;
    left: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    background-color: white;
    border-radius: 9999px;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transform: translateX(0);
    transition: transform 0.2s ease-in-out;
}
.theme-switch-thumb .lucide {
    width: 1rem;
    height: 1rem;
    color: #6B7280;
}
html.dark .theme-switch-thumb {
    transform: translateX(1.5rem);
}

/* Static Theme Toggle in Main Mockup */
.static-theme-toggle .toggle-bg {
    display: flex;
    align-items: center;
    padding: 0.25rem;
    border-radius: 9999px;
    background-color: var(--background-secondary);
    border: 1px solid var(--border-primary);
}
.static-theme-toggle .toggle-option {
    padding: 0.25rem;
    border-radius: 9999px;
    color: var(--text-secondary);
}
.static-theme-toggle .toggle-option.active {
    background-color: var(--background-primary);
    color: var(--text-primary);
    box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05);
}

/* History Page */
.history-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1rem;
    background-color: var(--background-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 0.5rem;
    transition: all 0.2s;
}
.history-item:hover {
    border-color: var(--border-secondary);
    background-color: var(--background-primary);
}

/* Settings Page */
.settings-section {
    border-bottom: 1px solid var(--border-primary);
    padding-bottom: 2rem;
}
.settings-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.settings-heading {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}
.settings-subheading {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    margin-bottom: 1rem;
}
.static-theme-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    background-color: var(--background-secondary);
    padding: 0.25rem;
    border-radius: 0.5rem;
}
.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 0;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 2px solid transparent;
}
.theme-option.active {
    background-color: var(--background-primary);
    color: var(--text-primary);
    box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05);
}
.theme-option .lucide {
    width: 1.25rem;
    height: 1.25rem;
}

.pref-switch {
    position: relative;
    width: 2.75rem;
    height: 1.5rem;
    background-color: var(--border-primary);
    border-radius: 9999px;
    transition: background-color .2s;
    flex-shrink: 0;
}
.pref-switch[data-enabled="true"] {
    background-color: var(--primary-accent);
}
.pref-switch-thumb {
    display: block;
    width: 1.25rem;
    height: 1.25rem;
    background-color: white;
    border-radius: 9999px;
    position: absolute;
    top: 0.125rem;
    left: 0.125rem;
    transition: transform .2s;
}
.pref-switch[data-enabled="true"] .pref-switch-thumb {
    transform: translateX(1.25rem);
}