:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #475569;
    --border-main: #cbd5e1;
    --border-focus: #4f46e5;
    --primary: #0f172a;
    --primary-hover: #1e293b;
    --accent: #f1f5f9;
    --indigo: #4f46e5;
    --indigo-hover: #4338ca;
    --indigo-light: #e0e7ff;
}

[data-theme="dark"] {
    --bg-main: #090d16;
    --bg-card: #111827;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --border-main: #374151;
    --border-focus: #6366f1;
    --primary: #f3f4f6;
    --primary-hover: #e5e7eb;
    --accent: #1f2937;
    --indigo: #6366f1;
    --indigo-hover: #818cf8;
    --indigo-light: #312e81;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.2s, color 0.2s;
}

/* Top Navigation Bar */
.navbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.navbar .brand {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.navbar .brand span {
    color: var(--indigo);
}

.navbar .status-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Custom Dropdown Trigger */
.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    background-color: var(--accent);
    border: 1px solid var(--border-main);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
}

.dropdown-btn:hover {
    border-color: var(--indigo);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background-color: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: 8px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    width: 280px;
    padding: 0.5rem;
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    z-index: 200;
}

.dropdown-menu.show {
    display: flex;
    animation: slideDown 0.15s ease-out forwards;
}

.dropdown-item {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: none;
    padding: 0.6rem 0.85rem;
    text-align: left;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
}

.dropdown-item:hover {
    color: var(--indigo);
    background-color: var(--accent);
}

.dropdown-item.active {
    color: white;
    background-color: var(--indigo);
}

/* Day/Night Theme Toggler */
.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s;
}

.theme-toggle:hover {
    background-color: var(--accent);
}

.plan-pill {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-main);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}

/* Workspace Layout Grid */
.workspace-container {
    flex-grow: 1;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    padding: 2rem;
    height: calc(100vh - 65px);
}

@media (max-width: 1024px) {
    .workspace-container {
        grid-template-columns: 1fr;
        height: auto;
        overflow-y: visible;
    }
}

.workspace-pane {
    background-color: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: 8px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05);
}

.pane-header {
    border-bottom: 1px solid var(--border-main);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.pane-header h2 {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.pane-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Tool Graphics */
.tool-graphic-container {
    width: 100%;
    height: 140px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border-main);
}

.tool-graphic {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Form inputs */
.tool-view {
    display: none;
}

.tool-view.active {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    flex-grow: 1;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-main);
}

textarea, select {
    background-color: var(--bg-main);
    border: 1px solid var(--border-main);
    border-radius: 6px;
    color: var(--text-main);
    padding: 0.85rem;
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.5;
    outline: none;
    transition: border-color 0.15s ease;
}

textarea {
    height: 160px;
    resize: none;
}

select {
    height: 44px;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='gray' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

textarea:focus, select:focus {
    border-color: var(--border-focus);
}

/* Buttons */
.actions {
    display: flex;
    gap: 1rem;
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-main);
}

.btn {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--indigo);
    flex-grow: 1;
}

.btn-primary {
    background-color: var(--indigo);
    color: white;
    border-color: var(--indigo);
}

.btn-primary:hover {
    background-color: var(--indigo-hover);
    border-color: var(--indigo-hover);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-main);
}

.btn-secondary:hover {
    background-color: var(--accent);
}

/* Right Output Pane Details */
.output-placeholder {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    gap: 1rem;
}

.output-placeholder .icon {
    font-size: 2.5rem;
    color: var(--indigo);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-main);
    padding-bottom: 0.75rem;
}

.output-header h3 {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Copy Button Styling */
.copy-btn {
    background: transparent;
    border: 1px solid var(--border-main);
    color: var(--text-main);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.15s ease;
}

.copy-btn:hover {
    background-color: var(--accent);
    border-color: var(--indigo);
}

.badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    border: 1px solid var(--border-main);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.badge.premium {
    background-color: var(--indigo);
    color: white;
    border-color: var(--indigo);
}

.analysis-content {
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    color: var(--text-main);
    flex-grow: 1;
}

/* Circular ATS Compatibility Meter */
.score-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--indigo-light);
    border: 1px solid var(--indigo);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.score-radial {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: conic-gradient(var(--indigo) calc(var(--percent) * 1%), var(--border-main) 0);
    display: flex;
    align-items: center;
    justify-content: center;
}

.score-radial::after {
    content: attr(data-score);
    position: absolute;
    width: 48px;
    height: 48px;
    background-color: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    font-weight: 800;
}

.score-text h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

.score-text p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Side-by-Side Upgrade Matrix */
.cta-upgrade {
    margin-top: auto;
    border-top: 1px solid var(--border-main);
    padding-top: 1.5rem;
}

.perks-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.perk-column {
    border: 1px solid var(--border-main);
    background: var(--bg-main);
    padding: 1rem;
    border-radius: 6px;
}

.perk-column.premium-perk {
    background: var(--indigo-light);
    border-color: var(--indigo);
}

.perk-column h4 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.perk-column ul {
    list-style: none;
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.perk-column ul li {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.upgrade-actions {
    text-align: center;
}

.upgrade-actions p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}