/* ============================================================
   PI VALUATION ENGINE — Application Stylesheet
   Dark-mode GUI theme
   ============================================================ */

:root {
    --bg: #0B1120;
    --surface: #111827;
    --card: #1A2234;
    --card-alt: #1E2840;
    --border: #2A3650;
    --border-lt: #374765;
    --txt: #E8ECF4;
    --muted: #8896B0;
    --dim: #5A6A85;
    --accent: #3B82F6;
    --accent-glow: rgba(59,130,246,.12);
    --gold: #F59E0B;
    --gold-glow: rgba(245,158,11,.10);
    --green: #10B981;
    --green-glow: rgba(16,185,129,.10);
    --red: #EF4444;
    --orange: #F97316;
    --purple: #8B5CF6;
    --input-bg: #0F1D32;
    --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--txt); min-height: 100vh; }

/* ── Navigation ── */
.topnav { display: flex; justify-content: space-between; align-items: center; padding: 10px 24px; background: var(--surface); border-bottom: 1px solid var(--border); }
.nav-brand { color: var(--txt); text-decoration: none; font-weight: 800; font-size: 16px; }
.brand-icon { color: var(--gold); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-user { font-size: 13px; color: var(--muted); }
.nav-role { font-size: 10px; text-transform: uppercase; background: var(--accent-glow); color: var(--accent); padding: 2px 8px; border-radius: 10px; margin-left: 4px; }
.nav-link { color: var(--muted); text-decoration: none; font-size: 13px; }
.nav-link:hover { color: var(--txt); }

/* ── Main Content ── */
.main-content { max-width: 900px; margin: 0 auto; padding: 24px; }

/* ── Login ── */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-page .main-content { width: 100%; max-width: 400px; }
.login-container { display: flex; justify-content: center; }
.login-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; width: 100%; }
.login-brand { font-size: 20px; font-weight: 800; text-align: center; margin-bottom: 4px; }
.login-subtitle { font-size: 12px; color: var(--dim); text-align: center; margin-bottom: 24px; }
.login-error { background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3); color: var(--red); padding: 10px; border-radius: 6px; font-size: 13px; margin-bottom: 16px; }

/* ── Dashboard ── */
.dash-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.dash-header h1 { font-size: 22px; font-weight: 700; }
.dash-filters { display: flex; gap: 12px; margin-bottom: 20px; }
.search-input { flex: 1; padding: 10px 14px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 6px; color: var(--txt); font-size: 14px; outline: none; }
.search-input:focus { border-color: var(--accent); }
.filter-select { padding: 10px 14px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 6px; color: var(--txt); font-size: 13px; outline: none; cursor: pointer; }
.filter-select option { background: var(--card); }

.case-list { display: flex; flex-direction: column; gap: 8px; }
.case-card { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; transition: .2s; }
.case-card:hover { border-color: var(--accent); background: var(--card-alt); }
.case-info h3 { font-size: 15px; font-weight: 700; margin-bottom: 2px; }
.case-info .case-meta { font-size: 12px; color: var(--muted); }
.case-vals { text-align: right; }
.case-vals .target-val { font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 16px; color: var(--gold); }
.case-vals .case-status { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; margin-top: 2px; }
.status-draft { color: var(--muted); }
.status-ready { color: var(--green); }
.status-reviewed { color: var(--accent); }
.status-archived { color: var(--dim); }

.empty-state { text-align: center; padding: 60px 0; color: var(--dim); }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--muted); }

/* ── Form Elements ── */
.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.field .hint { font-size: 11px; color: var(--dim); margin-top: 4px; line-height: 1.4; font-style: italic; }
.field input[type=text], .field input[type=number], .field input[type=password], .field input[type=email], .field input[type=date], .field select, .field textarea {
    width: 100%; padding: 10px 14px; background: var(--input-bg); border: 1px solid var(--border);
    border-radius: 6px; color: var(--txt); font-family: 'JetBrains Mono', monospace; font-size: 14px; outline: none; transition: .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.field select { cursor: pointer; }
.field select option { background: var(--card); color: var(--txt); }
.field textarea { resize: vertical; min-height: 60px; font-family: 'DM Sans', sans-serif; font-size: 13px; }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }

.dollar-wrap { position: relative; }
.dollar-wrap::before { content: '$'; position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--dim); font-family: 'JetBrains Mono', monospace; font-size: 14px; font-weight: 600; }
.dollar-wrap input { padding-left: 28px; }

/* ── Cards ── */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card-title { font-size: 12px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }

/* ── Buttons ── */
.btn { padding: 10px 24px; border-radius: var(--radius); font-size: 14px; font-weight: 700; cursor: pointer; transition: .2s; border: none; display: inline-flex; align-items: center; gap: 6px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #2563EB; }
.btn-secondary { background: var(--surface); color: var(--muted); border: 1px solid var(--border); }
.btn-secondary:hover { color: var(--txt); border-color: var(--border-lt); }
.btn-gold { background: var(--gold); color: #000; }
.btn-green { background: var(--green); color: #fff; }
.btn-red { background: var(--red); color: #fff; }
.btn-row { display: flex; gap: 12px; margin-top: 24px; }

/* ── Wizard specific ── */
.progress-bar { display: flex; gap: 4px; margin-bottom: 24px; }
.progress-bar .seg { flex: 1; height: 4px; border-radius: 2px; background: var(--border); transition: .3s; }
.progress-bar .seg.active { background: var(--accent); }
.progress-bar .seg.done { background: var(--green); }
.step-label { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 6px; }
.step-title { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.step-subtitle { font-size: 13px; color: var(--muted); margin-bottom: 24px; line-height: 1.5; }

/* ── Check/Radio groups ── */
.check-group { display: flex; flex-wrap: wrap; gap: 8px; }
.check-item { padding: 8px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; border: 1px solid var(--border); background: transparent; color: var(--muted); cursor: pointer; transition: .2s; user-select: none; }
.check-item.active { border-color: var(--accent); background: var(--accent-glow); color: var(--accent); }
.check-item.amp.active { border-color: var(--green); background: var(--green-glow); color: var(--green); }
.check-item.sup.active { border-color: var(--red); background: rgba(239,68,68,.1); color: var(--red); }

.radio-cards { display: flex; flex-direction: column; gap: 8px; }
.radio-card { padding: 12px 16px; border-radius: var(--radius); border: 1px solid var(--border); cursor: pointer; transition: .2s; }
.radio-card:hover { border-color: var(--border-lt); }
.radio-card.active { border-color: var(--accent); background: var(--accent-glow); }
.radio-card .rc-title { font-size: 14px; font-weight: 700; }
.radio-card .rc-desc { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── Provider list ── */
.provider-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.provider-row input { flex: 1; }
.remove-btn { width: 32px; height: 32px; border-radius: 6px; border: 1px solid var(--border); background: transparent; color: var(--red); cursor: pointer; font-size: 16px; display: flex; align-items: center; justify-content: center; }
.add-btn { padding: 8px 16px; border-radius: 6px; border: 1px dashed var(--border); background: transparent; color: var(--accent); font-size: 13px; font-weight: 600; cursor: pointer; transition: .2s; width: 100%; }
.add-btn:hover { border-color: var(--accent); background: var(--accent-glow); }

/* ── Toggle ── */
.toggle-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; }
.toggle { width: 44px; height: 24px; border-radius: 12px; background: var(--border); cursor: pointer; position: relative; transition: .2s; flex-shrink: 0; }
.toggle.on { background: var(--accent); }
.toggle::after { content: ''; width: 18px; height: 18px; border-radius: 50%; background: #fff; position: absolute; top: 3px; left: 3px; transition: .2s; }
.toggle.on::after { left: 23px; }
.toggle-label { font-size: 14px; font-weight: 500; }

/* ── Results ── */
.result-hero { display: flex; gap: 12px; margin-bottom: 20px; }
.result-box { flex: 1; padding: 16px; border-radius: var(--radius); text-align: center; }
.result-box.cons { background: var(--green-glow); border: 1px solid rgba(16,185,129,.25); }
.result-box.targ { background: var(--gold-glow); border: 1px solid rgba(245,158,11,.25); }
.result-box.agg { background: rgba(249,115,22,.08); border: 1px solid rgba(249,115,22,.25); }
.result-box .rb-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 4px; }
.result-box .rb-val { font-family: 'JetBrains Mono', monospace; font-weight: 800; font-size: 22px; }
.result-box.cons .rb-label, .result-box.cons .rb-val { color: var(--green); }
.result-box.targ .rb-label, .result-box.targ .rb-val { color: var(--gold); }
.result-box.agg .rb-label, .result-box.agg .rb-val { color: var(--orange); }

.breakdown-table { width: 100%; border-collapse: collapse; }
.breakdown-table th { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 1px; text-align: right; padding: 8px 0; border-bottom: 1px solid var(--border); }
.breakdown-table th:first-child { text-align: left; }
.breakdown-table td { padding: 7px 0; font-size: 13px; border-bottom: 1px solid var(--border); }
.breakdown-table td:not(:first-child) { text-align: right; font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.breakdown-table tr.total td { border-top: 2px solid var(--gold); font-weight: 700; font-size: 14px; color: var(--gold); }

/* ── Utility ── */
.loading { text-align: center; padding: 40px; color: var(--dim); }
.hidden { display: none !important; }
.text-green { color: var(--green); }
.text-gold { color: var(--gold); }
.text-orange { color: var(--orange); }
.text-muted { color: var(--muted); }
.mono { font-family: 'JetBrains Mono', monospace; }

@media (max-width: 640px) {
    .field-row { flex-direction: column; }
    .result-hero { flex-wrap: wrap; }
    .result-box { min-width: calc(50% - 6px); }
    .dash-filters { flex-direction: column; }
}