/* ═══════════════════════════════════════════════
   AGENT DIRECTIVE BUILDER — Form Wizard + Live Preview
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg-page: hsl(40, 30%, 97%);
    --bg-white: hsl(0, 0%, 100%);
    --bg-warm: hsl(35, 40%, 95%);
    --bg-soft: hsl(30, 20%, 93%);
    --bg-card: hsl(0, 0%, 100%);
    --border: hsl(30, 15%, 88%);
    --border-hover: hsl(30, 20%, 78%);
    --text-0: hsl(220, 20%, 16%);
    --text-1: hsl(220, 10%, 38%);
    --text-2: hsl(220, 8%, 55%);
    --text-3: hsl(220, 6%, 68%);
    --accent: hsl(245, 58%, 56%);
    --accent-light: hsl(245, 58%, 64%);
    --accent-bg: hsl(245, 60%, 96%);
    --accent-border: hsl(245, 50%, 88%);
    --teal: hsl(170, 50%, 45%);
    --amber: hsl(38, 92%, 55%);
    --coral: hsl(12, 80%, 62%);
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-pill: 100px;
    --transition: 200ms ease;
    --shadow-sm: 0 1px 3px hsla(220, 20%, 16%, 0.06);
    --shadow-md: 0 4px 16px hsla(220, 20%, 16%, 0.08);
    --shadow-lg: 0 8px 32px hsla(220, 20%, 16%, 0.1);
    --shadow-btn: 0 2px 8px hsla(245, 58%, 56%, 0.2);

    --dark-bg: hsl(225, 18%, 12%);
    --dark-bg-header: hsl(225, 16%, 16%);
    --dark-text: hsl(220, 8%, 68%);
    --dark-accent: hsl(245, 60%, 72%);
    --dark-teal: hsl(170, 60%, 55%);
    --dark-amber: hsl(38, 90%, 65%);
    --dark-dim: hsl(220, 6%, 45%);
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body {
    font-family: var(--sans);
    background: var(--bg-page);
    color: var(--text-0);
    min-height: 100vh;
    overflow-x: hidden;
}

.db-app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.db-app>#shared-footer {
    margin-top: auto;
}

/* ─── Intro ─── */

.db-main {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 32px 60px;
}

.db-intro {
    text-align: center;
    margin-bottom: 24px;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 8px;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    color: var(--text-0);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-2);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ─── Templates ─── */

.db-templates {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.db-templates-label {
    font-size: 0.78rem;
    color: var(--text-2);
    font-weight: 500;
    margin-right: 4px;
}

.template-chip {
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    background: var(--bg-white);
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-1);
    cursor: pointer;
    transition: all 200ms ease;
    white-space: nowrap;
}

.template-chip:hover {
    background: var(--accent-bg);
    border-color: var(--accent-border);
    color: var(--accent);
    transform: translateY(-1px);
}

.template-chip.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* ─── Split Panes ─── */

.db-panes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    min-height: 620px;
}

.db-pane {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
}

.pane-header {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 12px 16px;
    background: var(--bg-warm);
    border-bottom: 1px solid var(--border);
}

.pane-header.dark {
    background: var(--dark-bg-header);
    border-bottom: 1px solid hsla(220, 10%, 20%, 0.6);
}

.pane-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.pane-dot.red {
    background: hsl(0, 60%, 55%);
}

.pane-dot.yellow {
    background: hsl(40, 80%, 55%);
}

.pane-dot.green {
    background: hsl(130, 50%, 48%);
}

.pane-title {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--text-2);
    margin-left: 8px;
}

.pane-header.dark .pane-title {
    color: hsl(220, 8%, 50%);
}

.pane-actions {
    margin-left: auto;
    display: flex;
    gap: 6px;
}

.pane-btn {
    padding: 4px 10px;
    border: 1px solid hsla(220, 10%, 30%, 0.3);
    border-radius: 6px;
    background: hsla(220, 10%, 20%, 0.3);
    color: hsl(220, 8%, 60%);
    font-family: var(--sans);
    font-size: 0.68rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 200ms ease;
}

.pane-btn:hover {
    background: hsla(220, 10%, 25%, 0.5);
    color: hsl(220, 8%, 80%);
}

.pane-body {
    flex: 1;
    padding: 16px;
    background: var(--bg-card);
    overflow-y: auto;
}

.pane-body.dark {
    background: var(--dark-bg);
}

/* ─── Form Sections ─── */

.db-form-pane {
    border: 1px solid var(--border);
}

.db-section {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    overflow: hidden;
    transition: border-color 200ms ease;
}

.db-section:hover {
    border-color: var(--border-hover);
}

.db-section-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 12px 14px;
    border: none;
    background: var(--bg-warm);
    font-family: var(--sans);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-0);
    cursor: pointer;
    transition: background 200ms ease;
}

.db-section-toggle:hover {
    background: var(--bg-soft);
}

.toggle-arrow {
    font-size: 0.7rem;
    color: var(--text-2);
    transition: transform 200ms ease;
    width: 12px;
    display: inline-block;
}

.section-icon {
    font-size: 0.9rem;
}

.db-section-body {
    display: none;
    padding: 14px;
}

.db-section.open .db-section-body {
    display: block;
}

.db-section.open .toggle-arrow {
    transform: rotate(0deg);
}

.db-section:not(.open) .toggle-arrow {
    transform: rotate(-90deg);
}

/* ─── Form Controls ─── */

.db-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-1);
    margin: 10px 0 5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.db-label:first-child {
    margin-top: 0;
}

.db-hint {
    font-size: 0.75rem;
    color: var(--text-3);
    margin-bottom: 10px;
    line-height: 1.5;
}

.db-input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-page);
    font-family: var(--sans);
    font-size: 0.85rem;
    color: var(--text-0);
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.db-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px hsla(245, 58%, 56%, 0.1);
}

.db-input::placeholder {
    color: var(--text-3);
}

.db-textarea {
    width: 100%;
    min-height: 90px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-page);
    font-family: var(--sans);
    font-size: 0.82rem;
    color: var(--text-0);
    resize: vertical;
    line-height: 1.6;
    transition: border-color 200ms ease, box-shadow 200ms ease;
}

.db-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px hsla(245, 58%, 56%, 0.1);
}

.db-textarea::placeholder {
    color: var(--text-3);
}

/* ─── Tags ─── */

.db-tag-input .db-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.db-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-pill);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--accent);
}

.db-tag .remove-tag {
    cursor: pointer;
    font-size: 0.65rem;
    opacity: 0.5;
    transition: opacity 200ms;
    background: none;
    border: none;
    color: var(--accent);
    padding: 0;
    line-height: 1;
}

.db-tag .remove-tag:hover {
    opacity: 1;
}

/* ─── List Items ─── */

.db-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}

.db-list-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-page);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.82rem;
    color: var(--text-1);
    animation: slideIn 200ms ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.db-list-item .item-text {
    flex: 1;
}

.db-list-item .remove-item {
    cursor: pointer;
    font-size: 0.7rem;
    color: var(--text-3);
    background: none;
    border: none;
    padding: 2px 4px;
    transition: color 200ms;
}

.db-list-item .remove-item:hover {
    color: var(--coral);
}

.db-add-row {
    display: flex;
    gap: 6px;
}

.db-add-row .db-input {
    flex: 1;
}

.db-add-btn {
    padding: 8px 14px;
    border: 1px solid var(--accent-border);
    border-radius: 8px;
    background: var(--accent-bg);
    color: var(--accent);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 200ms ease;
    flex-shrink: 0;
}

.db-add-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* ─── Tools List ─── */

.db-tools-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}

.db-tool-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-page);
    border: 1px solid var(--border);
    border-radius: 8px;
    animation: slideIn 200ms ease;
}

.db-tool-item .tool-name {
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--accent);
    font-family: var(--mono);
    flex-shrink: 0;
}

.db-tool-item .tool-sep {
    color: var(--text-3);
    font-size: 0.75rem;
}

.db-tool-item .tool-desc {
    font-size: 0.78rem;
    color: var(--text-1);
    flex: 1;
}

.db-tool-item .remove-item {
    cursor: pointer;
    font-size: 0.7rem;
    color: var(--text-3);
    background: none;
    border: none;
    padding: 2px 4px;
    transition: color 200ms;
}

.db-tool-item .remove-item:hover {
    color: var(--coral);
}

.tool-add {
    display: flex;
    gap: 6px;
}

/* ─── Preview ─── */

.db-preview-pane {
    border: 1px solid hsla(220, 10%, 20%, 0.3);
    position: sticky;
    top: 80px;
    align-self: start;
    max-height: calc(100vh - 100px);
}

.preview-md {
    font-family: var(--mono);
    font-size: 0.78rem;
    line-height: 1.8;
    color: var(--dark-text);
    white-space: pre-wrap;
    word-break: break-word;
}

.preview-md .md-h1 {
    color: var(--dark-amber);
    font-weight: 700;
    font-size: 0.92rem;
    margin: 0 0 12px;
}

.preview-md .md-h2 {
    color: var(--dark-accent);
    font-weight: 600;
    font-size: 0.84rem;
    margin: 18px 0 6px;
    padding-bottom: 4px;
    border-bottom: 1px solid hsla(220, 10%, 20%, 0.3);
}

.preview-md .md-h3 {
    color: var(--dark-dim);
    font-weight: 600;
    font-size: 0.78rem;
    margin: 12px 0 4px;
}

.preview-md .md-line {
    color: var(--dark-text);
    padding: 1px 0;
}

.preview-md .md-bullet {
    color: var(--dark-teal);
    padding: 2px 0 2px 12px;
}

.preview-md .md-empty {
    height: 8px;
}

.preview-md .md-tool-line {
    padding: 2px 0 2px 12px;
}

.preview-md .md-tool-line .tn {
    color: var(--dark-amber);
    font-weight: 600;
}

.preview-md .md-tool-line .td {
    color: var(--dark-dim);
}

/* ─── CTA Bar ─── */

.db-cta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-top: 40px;
    padding: 28px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.db-cta-text p {
    font-size: 0.92rem;
    color: var(--text-1);
}

.db-cta-text strong {
    color: var(--text-0);
}

.db-cta-pricing {
    font-size: 0.75rem !important;
    color: var(--teal) !important;
    font-weight: 600;
    margin-top: 6px;
    letter-spacing: 0.01em;
}

/* ─── Buttons ─── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-family: var(--sans);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px hsla(245, 58%, 56%, 0.25);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 0.88rem;
    border-radius: 12px;
}

/* ─── Toast ─── */

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 12px 24px;
    background: var(--text-0);
    color: white;
    border-radius: var(--radius);
    font-size: 0.82rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: all 300ms cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 200;
    pointer-events: none;
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ─── Scrollbar ─── */

.pane-body::-webkit-scrollbar {
    width: 5px;
}

.pane-body::-webkit-scrollbar-track {
    background: transparent;
}

.pane-body::-webkit-scrollbar-thumb {
    background: hsla(220, 10%, 40%, 0.3);
    border-radius: 3px;
}

/* ─── Responsive ─── */

@media (max-width: 900px) {
    .db-panes {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .db-pane {
        min-height: 400px;
    }

    .db-preview-pane {
        position: static;
        max-height: 500px;
    }

    .db-cta-bar {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .db-main {
        padding: 24px 16px 40px;
    }

    .section-title {
        font-size: 1.6rem;
    }
}