/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0a0a;
    --bg-raised: #111111;
    --bg-hover: #1a1a1a;
    --border: #222222;
    --border-light: #1a1a1a;
    --text: #e5e5e5;
    --text-secondary: #888888;
    --text-muted: #555555;
    --accent: #ffffff;
    --link: #8ab4f8;
    --urgent: #ef4444;
    --high: #f59e0b;
    --medium: #3b82f6;
    --green: #22c55e;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ── Navigation (sticky, frosted glass) ──────────── */
nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
}

.nav-inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: -0.01em;
    color: var(--accent);
}

#nav-report-btn {
    display: none;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 500;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-raised);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

#nav-report-btn:hover {
    border-color: #444;
    color: var(--accent);
}

/* ── Main Content ────────────────────────────────── */
main {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

/* ── Sections (generic) ──────────────────────────── */
section {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

section:last-of-type {
    border-bottom: none;
}

.section-heading {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--accent);
    margin: 0 0 0.5rem;
}

.section-subtext {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ── Hero (#hero) ────────────────────────────────── */
#hero {
    padding-top: 5rem;
}

#hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--accent);
    line-height: 1.2;
}

.hero-sub {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
    max-width: 520px;
    line-height: 1.6;
}

.hero-cta {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.75rem 2rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.2s;
}

.hero-cta:hover {
    opacity: 0.88;
    color: var(--bg);
}

.self-host-link {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

.self-host-link a {
    color: var(--text-muted);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.self-host-link a:hover {
    color: var(--text-secondary);
}

/* ── How It Works (#how-it-works) ────────────────── */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 1.5rem;
}

.step {
    text-align: center;
}

.step-circle {
    width: 48px;
    height: 48px;
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

.step h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin: 1rem 0 0.35rem;
}

.step p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ── Preview (#preview) ──────────────────────────── */
.preview-card {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 1.5rem;
}

.preview-summary {
    list-style: none;
    margin: 0;
    padding: 0;
}

.preview-summary li {
    position: relative;
    padding-left: 1rem;
    margin: 0.5rem 0;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text);
}

.preview-summary li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

/* ── Pricing (#pricing) ─────────────────────────── */
#pricing {
    text-align: center;
}

.pricing-heading {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
    margin: 0 0 0.75rem;
}

#pricing .support-box {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
    justify-content: center;
}

.pricing-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
}

/* ── Form (#form) ────────────────────────────────── */
.form-card {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.label-hint {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.form-card input[type="text"],
.form-card textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
}

.form-card input[type="text"]:focus,
.form-card textarea:focus {
    border-color: #444;
}

.form-card textarea {
    resize: vertical;
}

.btn-generate {
    width: 100%;
    padding: 0.85rem;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-generate:hover {
    opacity: 0.9;
}

.btn-generate:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-limit {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
}

/* ── Required & Optional field indicators ────────── */
.required-star {
    color: #ef4444;
    font-size: 1.05em;
    font-weight: 700;
    margin-left: 0.15em;
}

.optional-tag {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    margin-left: 0.4rem;
    vertical-align: middle;
    line-height: 1.4;
}

/* ── Form validation errors ──────────────────────── */
.form-error {
    display: none;
    font-size: 0.75rem;
    color: #ef4444;
    margin-top: 0.3rem;
    line-height: 1.4;
}

.form-error.visible {
    display: block;
}

.input-error {
    border-color: #ef4444 !important;
    background: rgba(239, 68, 68, 0.05) !important;
}

/* ── Collapsible tips section ────────────────────── */
.tips-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    transition: border-color 0.2s, color 0.2s;
    margin-top: 1rem;
}

.tips-toggle:hover {
    border-color: #444;
    color: var(--text);
}

.tips-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1.5px solid var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    flex-shrink: 0;
}

.tips-label {
    flex: 1;
    text-align: left;
}

.tips-chevron {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    position: relative;
}

.tips-chevron::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    border-right: 1.5px solid var(--text-muted);
    border-bottom: 1.5px solid var(--text-muted);
    transform: translate(-50%, -60%) rotate(45deg);
    transition: transform 0.2s;
}

.tips-section.open .tips-chevron::before {
    transform: translate(-50%, -40%) rotate(-135deg);
}

.tips-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.tips-section.open .tips-body {
    max-height: 300px;
}

.tips-list {
    list-style: none;
    margin: 0.75rem 0 0 0;
    padding: 0;
}

.tips-list li {
    position: relative;
    padding: 0.4rem 0 0.4rem 1.25rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.tips-list li::before {
    content: '\2022';
    position: absolute;
    left: 0.25rem;
    color: var(--text-muted);
    font-weight: 700;
}

/* ── Report date range pill ──────────────────────── */
.report-date-range {
    display: inline-block;
    border: 1px solid var(--border);
    background: var(--bg-raised);
    border-radius: 6px;
    padding: 0.25rem 0.65rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin: 0.4rem 0;
    line-height: 1.5;
}

/* ── Report (#report) ────────────────────────────── */
#report {
    display: none;
}

.progress-area {
    padding: 3rem 0;
    text-align: center;
}

.progress-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
}

.progress-step.active {
    color: var(--text);
}

.progress-step.done {
    color: var(--green);
}

.progress-step.waiting {
    color: var(--text-muted);
}

/* Spinner */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Error */
.error-msg {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    padding: 1rem;
    color: var(--urgent);
    font-size: 0.9rem;
}

/* Report actions */
#report-actions {
    display: none;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

#report-actions.visible {
    display: flex;
}

.btn-download {
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--bg);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn-download:hover {
    opacity: 0.9;
}

.btn-again {
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn-again:hover {
    border-color: var(--green);
    color: var(--green);
}

#report-stats {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* ── Accordion (report sections) ─────────────────── */
.accordion-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.accordion {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.accordion:hover { border-color: #333; }
.accordion.open { border-color: #333; }

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    background: var(--bg-raised);
    border: none;
    color: var(--text);
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    text-align: left;
    transition: background 0.2s;
}

.accordion-header:hover { background: var(--bg-hover); }

.accordion-title {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.accordion-title strong {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

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

.accordion-chevron {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    position: relative;
}

.accordion-chevron::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 7px;
    height: 7px;
    border-right: 1.5px solid var(--text-muted);
    border-bottom: 1.5px solid var(--text-muted);
    transform: translate(-50%, -60%) rotate(45deg);
    transition: transform 0.2s;
}

.accordion.open .accordion-chevron::before {
    transform: translate(-50%, -40%) rotate(-135deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 1rem;
}

.accordion.open .accordion-body {
    max-height: 2000px;
    padding: 0.75rem 1rem 1.25rem;
}

/* ── Section numbers (report) ────────────────────── */
.section-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* ── Typography ──────────────────────────────────── */
h1.report-title {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--accent);
    margin: 0 0 0.5rem;
}

h2 { font-size: 1rem; font-weight: 600; color: var(--accent); margin: 0 0 0.75rem; }
h3 { font-size: 0.9rem; font-weight: 600; color: var(--text); margin: 1.25rem 0 0.4rem; }

p { margin: 0.4rem 0; color: var(--text); font-size: 0.9rem; }
p.meta { color: var(--text-muted); font-size: 0.8rem; font-style: italic; }
p.ol-item { margin: 0.3rem 0 0.3rem 0.5rem; }

strong { font-weight: 600; color: var(--accent); }
em { font-style: italic; color: var(--text-secondary); }

code {
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.82em;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    color: var(--link);
}

a { color: var(--link); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

p, h3, li, td, th, strong { overflow-wrap: break-word; }

/* ── Lists ───────────────────────────────────────── */
ul { margin: 0.5rem 0 0.75rem 1.25rem; list-style: none; }
ul li { position: relative; padding-left: 1rem; margin: 0.3rem 0; font-size: 0.9rem; }
ul li::before { content: '\00B7'; position: absolute; left: 0; color: var(--text-muted); font-weight: 700; }

ol { margin: 0.5rem 0 0.75rem 1.5rem; font-size: 0.9rem; }
ol li { margin: 0.3rem 0; padding-left: 0.25rem; }
ol li::marker { color: var(--text-muted); }

/* ── Blockquotes ─────────────────────────────────── */
blockquote {
    border-left: 2px solid var(--border);
    padding: 0.4rem 1rem;
    margin: 0.6rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ── Tables ──────────────────────────────────────── */
.table-wrap {
    overflow-x: auto;
    margin: 0.75rem 0 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
}

table { width: 100%; border-collapse: collapse; font-size: 0.82rem; line-height: 1.5; }

th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
}

td {
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: top;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* ── Callouts ────────────────────────────────────── */
.callout {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin: 0.75rem 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.callout strong { color: var(--text); }

.callout-success {
    border-color: rgba(34, 197, 94, 0.3);
    background: rgba(34, 197, 94, 0.05);
}

/* ── Code blocks ─────────────────────────────────── */
.code-block {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    margin: 0.75rem 0;
    overflow-x: auto;
}

.code-block pre {
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    white-space: pre;
}

/* ── Buttons (generic) ───────────────────────────── */
.btn {
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

.btn-primary:hover { opacity: 0.9; }

.btn-done {
    background: none;
    color: var(--text-secondary);
    border-color: var(--border);
}

.btn-done:hover { border-color: var(--green); color: var(--green); }

/* ── States ──────────────────────────────────────── */
.loading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 3rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.loading-dot {
    width: 6px; height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem 1rem;
    font-size: 0.9rem;
}

/* ── Footer ──────────────────────────────────────── */
footer { border-top: 1px solid var(--border); }

.footer-inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 2rem;
}

.value-block {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.75rem;
    margin-bottom: 1.5rem;
}

.value-block h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
    margin: 0 0 0.6rem;
}

.value-block > p { font-size: 0.85rem; color: var(--text-secondary); margin: 0.35rem 0; }

.support-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.7rem 1rem;
    margin: 1rem 0 0.6rem;
}

.support-box span {
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.support-box strong { color: var(--accent); font-weight: 500; font-size: 0.9rem; }
.support-hint { font-size: 0.75rem !important; color: var(--text-muted) !important; }

.footer-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
}

.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent); }
.dot { color: var(--text-muted); }
.footer-muted { color: var(--text-muted); }

.footer-divider {
    width: 100%;
    height: 1px;
    background: var(--border);
    margin: 1.25rem 0;
}

/* ── Mobile ──────────────────────────────────────── */
@media (max-width: 640px) {
    main { padding: 0 1rem 3rem; }

    .nav-inner { padding: 0.6rem 1rem; }

    #hero { padding-top: 3rem; }
    #hero h1 { font-size: 1.6rem; }

    .steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .preview-card { padding: 1.25rem; }

    .form-card { padding: 1.25rem; }

    table { font-size: 0.75rem; }
    th, td { padding: 0.4rem 0.5rem; }

    #report-actions {
        flex-direction: column;
        align-items: stretch;
    }

    #report-actions .btn-download,
    #report-actions .btn-again {
        text-align: center;
    }

    .footer-inner { padding: 2rem 1rem; }
    .value-block { padding: 1.25rem; }
    .support-box { flex-direction: column; gap: 0.2rem; align-items: flex-start; }
}

/* ── Print ───────────────────────────────────────── */
@media print {
    body { background: #fff; color: #111; }
    nav, footer, #form, .monitor-form { display: none; }
    main { max-width: 100%; padding: 0; }
    .accordion-body { max-height: none !important; padding: 0.75rem 1rem !important; }
    .table-wrap { border-color: #ddd; }
    th { background: #f5f5f5; color: #333; }
    td { border-color: #eee; }
    a, strong, code { color: #111; }
    #report-actions { display: none; }
    .hero-cta { display: none; }
}