/* ============================================================
   GEMgen — Genome-Scale Metabolic Model Generator
   Stylesheet: style.css
   Dark blue, white & black — clean scientific design
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Syne:wght@400;600;700;800&display=swap');

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

:root {
    --bg:          #f0f2f8;
    --bg2:         #ffffff;
    --bg3:         #e8ecf5;
    --border:      #c0cadf;
    --border-dark: #8fa0c4;
    --green:       #1a3a6e;
    --green-light: #2557b0;
    --green-pale:  #e6eaf8;
    --green-mid:   #cdd5ed;
    --teal:        #0e2d5a;
    --text:        #0d1a2e;
    --text-mid:    #2a3d5c;
    --text-dim:    #6a7fa0;
    --white:       #ffffff;
    --mono:        'Space Mono', monospace;
    --sans:        'Syne', sans-serif;
    --shadow-sm:   0 1px 4px rgba(26,58,110,0.08);
    --shadow-md:   0 4px 16px rgba(26,58,110,0.12);
}

/* ── BASE ── */
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.7;
    min-height: 100vh;
}

/* Subtle dot-grid background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
    background-size: 28px 28px;
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 96%;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

/* ── TYPOGRAPHY ── */
h2 {
    font-family: var(--sans);
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

h2 .accent { color: var(--green); }

h3 {
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin: 32px 0 14px;
}

p {
    color: var(--text-mid);
    margin-bottom: 14px;
}

a {
    color: var(--green);
    text-decoration: none;
}

a:hover {
    color: var(--green-light);
    text-decoration: underline;
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 36px 0;
}

/* ── HEADER ── */
.header {
    background: var(--teal);
    border-bottom: 2px solid var(--green);
    padding: 28px 0 24px;
    position: relative;
    overflow: hidden;
}

/* Blue accent stripe at very top */
.header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--green-light), var(--white), var(--green-light));
    opacity: 0.4;
}

.header::after {
    content: '';
    position: absolute;
    top: -80px; right: -80px;
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    pointer-events: none;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo-block h1 {
    font-family: var(--sans);
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -1.5px;
    color: var(--white);
    line-height: 1;
}

.logo-block h1 span {
    color: #7eb8ff;
}

.logo-block p {
    color: rgba(255,255,255,0.65);
    font-size: 0.85rem;
    margin-top: 7px;
    letter-spacing: 0.01em;
}

.logo-icon {
    width: 84px;
    height: 84px;
    flex-shrink: 0;
    opacity: 0.92;
}

/* ── NAV ── */
.menu {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.menu .container {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}

.menu a {
    color: var(--text-mid);
    text-decoration: none;
    padding: 13px 20px;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    border-right: 1px solid var(--border);
    transition: color 0.15s, background 0.15s;
    display: block;
    white-space: nowrap;
}

.menu a:first-child { border-left: 1px solid var(--border); }

.menu a:hover {
    color: var(--green);
    background: var(--green-pale);
    text-decoration: none;
}

.menu a.active {
    color: var(--green);
    background: var(--green-pale);
    font-weight: 600;
    border-bottom: 2px solid var(--green);
    text-decoration: none;
}

/* ── MAIN CONTENT ── */
.content {
    padding: 44px 0 70px;
}

/* ── FORM PANEL ── */
.form-panel {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px 36px;
    margin: 20px 0;
    position: relative;
    box-shadow: var(--shadow-md);
}

/* Green top accent bar */
.form-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--green), var(--green-light), var(--teal));
    border-radius: 10px 10px 0 0;
}

.field-group {
    display: grid;
    grid-template-columns: 280px 1fr;
    align-items: center;
    gap: 12px 20px;
    margin-bottom: 12px;
}

.field-label {
    color: var(--text-mid);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: right;
    padding-right: 14px;
    border-right: 2px solid var(--green-mid);
}

.form-panel input[type="text"],
.form-panel input[type="number"],
.form-panel input[type="file"],
.form-panel select {
    background: var(--bg);
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    color: var(--text);
    font-family: var(--mono);
    font-size: 0.85rem;
    padding: 9px 14px;
    width: 100%;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-panel input[type="file"] {
    color: var(--text-dim);
    font-family: var(--sans);
}

.form-panel input:focus,
.form-panel select:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(26,140,82,0.12);
    background: var(--white);
}

.form-panel select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%231a8c52' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

/* ── CHECKBOX GRID ── */
.check-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin: 16px 0;
}

.check-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.check-item:hover {
    border-color: var(--green);
    background: var(--green-pale);
    box-shadow: var(--shadow-sm);
}

.check-item input[type="checkbox"] {
    accent-color: var(--green);
    width: 15px;
    height: 15px;
    margin-top: 3px;
    flex-shrink: 0;
}

.check-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
}

.check-label small {
    display: block;
    color: var(--text-dim);
    font-size: 0.75rem;
    font-weight: 400;
    margin-top: 2px;
}

/* ── SUBMIT BUTTON ── */
.btn-submit {
    display: block;
    margin: 28px auto 0;
    background: var(--green);
    color: var(--white);
    font-family: var(--sans);
    font-weight: 600;
    font-size: 0.92rem;
    letter-spacing: 0.05em;
    border: none;
    border-radius: 6px;
    padding: 14px 52px;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
    box-shadow: 0 2px 8px rgba(26,58,110,0.25);
}

.btn-submit:hover {
    background: var(--green-light);
    box-shadow: 0 4px 20px rgba(26,58,110,0.35);
    transform: translateY(-1px);
}

/* ── PIPELINE STEPS ── */
.pipeline {
    margin: 14px 0;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
}

.step:last-child { border-bottom: none; }

.step-num {
    background: var(--green);
    color: var(--white);
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.78rem;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
    box-shadow: 0 2px 6px rgba(26,140,82,0.3);
}

.step-text {
    font-size: 0.88rem;
    color: var(--text-mid);
}

.step-text strong {
    color: var(--text);
    font-weight: 600;
}

/* ── INFOBOX ── */
.infobox {
    background: var(--green-pale);
    border: 1px solid var(--green-mid);
    border-left: 3px solid var(--green);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    font-size: 0.85rem;
    color: var(--text-mid);
    margin: 12px 0;
}

/* ── ALERTS ── */
.success {
    background: var(--green-pale);
    border: 1px solid var(--green-mid);
    border-left: 3px solid var(--green);
    border-radius: 0 6px 6px 0;
    padding: 13px 18px;
    color: var(--text);
    margin: 16px 0;
    font-size: 0.88rem;
}

.error {
    background: #fdf2f2;
    border: 1px solid #f0c0c0;
    border-left: 3px solid #d94040;
    border-radius: 0 6px 6px 0;
    padding: 13px 18px;
    color: #8b2020;
    margin: 16px 0;
    font-size: 0.88rem;
}

/* ── TAG BADGE ── */
.tag {
    display: inline-block;
    background: var(--green-pale);
    border: 1px solid var(--green-mid);
    color: var(--green);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 9px;
    border-radius: 20px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-left: 8px;
    vertical-align: middle;
}

/* ── FOOTER ── */
.footer {
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 22px 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.footer a {
    color: var(--text-dim);
    text-decoration: none;
}

.footer a:hover {
    color: var(--green);
}

/* ── RESPONSIVE ── */
@media (max-width: 1000px) {
    .check-grid { grid-template-columns: 1fr 1fr; }
    .container  { max-width: 100%; padding: 0 28px; }
}

@media (max-width: 650px) {
    .logo-block h1   { font-size: 2rem; }
    .logo-icon       { width: 60px; height: 60px; }
    .check-grid      { grid-template-columns: 1fr; }
    .field-group     { grid-template-columns: 1fr; }
    .field-label     { text-align: left; border-right: none; padding-right: 0;
                       border-bottom: 1px solid var(--border); padding-bottom: 4px; }
    .menu a          { padding: 10px 13px; font-size: 0.75rem; }
    .form-panel      { padding: 22px 18px; }
    .container       { padding: 0 16px; }
}


/* ── FORM SECTION LABELS ── */
.section-label {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--green);
    border-bottom: 1px solid var(--green-mid);
    padding-bottom: 6px;
    margin: 24px 0 14px;
}

.section-label:first-of-type { margin-top: 0; }

.field-fmt {
    color: var(--text-dim);
    font-weight: 400;
    font-size: 0.78rem;
}

/* ── 4-COLUMN BIOREACTOR ROW ── */
.field-row-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 12px;
}

.field-col {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field-col-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-mid);
    font-family: var(--sans);
}

.field-col select,
.field-col input {
    background: var(--bg);
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    color: var(--text);
    font-family: var(--mono);
    font-size: 0.83rem;
    padding: 9px 12px;
    width: 100%;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%231a8c52' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.field-col select:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(26,140,82,0.12); }

/* ── ADVANCED OPTIONS ── */
.adv-section {
    margin: 20px 0 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.adv-section summary {
    font-family: var(--sans);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-mid);
    padding: 11px 16px;
    cursor: pointer;
    background: var(--bg3);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}

.adv-section summary::before {
    content: '▸';
    color: var(--green);
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.adv-section[open] summary::before { transform: rotate(90deg); }

.adv-inner {
    padding: 18px 16px;
    background: var(--white);
}

/* input + unit inline */
.input-unit-row {
    display: flex;
    gap: 8px;
}

.input-unit-row input {
    flex: 1;
}

.input-unit-row select {
    width: 120px;
    flex-shrink: 0;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%231a8c52' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}

/* ── RESULTS PAGE ── */
.results-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 28px;
}

.results-subtitle {
    color: var(--text-dim);
    font-size: 0.83rem;
    margin-top: 4px;
}

.btn-back {
    font-family: var(--sans);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--green);
    border: 1px solid var(--green-mid);
    border-radius: 6px;
    padding: 9px 18px;
    background: var(--green-pale);
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.15s, border-color 0.15s;
}

.btn-back:hover { background: var(--green-mid); text-decoration: none; }

/* Output metric cards */
.output-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 36px;
}

.output-card {
    border-radius: 10px;
    padding: 28px 32px;
    position: relative;
    overflow: hidden;
}

.output-card--primary {
    background: var(--green);
    color: #fff;
}

.output-card--secondary {
    background: var(--white);
    border: 2px solid var(--green-mid);
    color: var(--text);
}

.output-card-icon {
    font-size: 1.4rem;
    margin-bottom: 10px;
    opacity: 0.7;
}

.output-card-label {
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
    margin-bottom: 6px;
}

.output-card--secondary .output-card-label { color: var(--text-dim); }

.output-card-value {
    font-family: var(--sans);
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1;
    margin-bottom: 10px;
}

.output-card--primary .output-card-value { color: #fff; }
.output-card--secondary .output-card-value { color: var(--green); }

.output-unit {
    font-size: 1.2rem;
    font-weight: 400;
    opacity: 0.75;
}

.output-card-range {
    font-size: 0.78rem;
    opacity: 0.7;
    font-family: var(--mono);
}

/* Driver analysis table */
.driver-table {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin: 14px 0;
}

.driver-row {
    display: grid;
    grid-template-columns: 160px 220px 1fr 130px;
    align-items: center;
    gap: 16px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    font-size: 0.83rem;
}

.driver-row:last-child { border-bottom: none; }

.driver-row--header {
    background: var(--bg3);
    font-family: var(--sans);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-dim);
}

.driver-param { font-weight: 600; color: var(--text); font-family: var(--sans); }
.driver-value code { font-family: var(--mono); font-size: 0.82rem; color: var(--text-mid); }

.driver-bar-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.driver-bar-track {
    flex: 1;
    height: 8px;
    background: var(--bg3);
    border-radius: 4px;
    overflow: hidden;
}

.driver-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
}

.driver-bar--positive { background: var(--green); }
.driver-bar--negative { background: #d94040; }
.driver-bar--neutral  { background: var(--border-dark); }

.driver-pct { font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); min-width: 32px; }

.driver-direction { font-family: var(--sans); font-size: 0.8rem; font-weight: 600; }
.driver-direction--positive { color: var(--green); }
.driver-direction--negative { color: #d94040; }
.driver-direction--neutral  { color: var(--text-dim); }

/* Run parameter summary */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin: 14px 0;
}

.summary-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.summary-key {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

.summary-val {
    font-size: 0.85rem;
    color: var(--text);
}

.summary-val code { font-family: var(--mono); font-size: 0.8rem; }

/* Results action buttons */
.results-actions {
    display: flex;
    gap: 14px;
    margin-top: 32px;
    align-items: center;
}

.btn-outline {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--green);
    background: var(--white);
    border: 1px solid var(--green);
    border-radius: 6px;
    padding: 13px 28px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-outline:hover { background: var(--green-pale); }

/* ── RESPONSIVE ADDITIONS ── */
@media (max-width: 1000px) {
    .field-row-4   { grid-template-columns: 1fr 1fr; }
    .summary-grid  { grid-template-columns: repeat(2, 1fr); }
    .driver-row    { grid-template-columns: 140px 1fr; grid-template-rows: auto auto; }
    .driver-row--header { display: none; }
}

@media (max-width: 650px) {
    .output-cards  { grid-template-columns: 1fr; }
    .field-row-4   { grid-template-columns: 1fr; }
    .summary-grid  { grid-template-columns: 1fr 1fr; }
    .results-header { flex-direction: column; }
}


/* ── PIPELINE STRIP ── */
.pipeline-strip {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 20px;
    margin: 24px 0 8px;
    overflow-x: auto;
}

.pipeline-strip-step {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-dim);
    white-space: nowrap;
    padding: 0 4px;
}

.pipeline-strip-step.active {
    color: var(--green);
    font-weight: 700;
}

.pipeline-strip-num {
    background: var(--bg3);
    color: var(--text-dim);
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.72rem;
    width: 22px; height: 22px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

.pipeline-strip-step.active .pipeline-strip-num {
    background: var(--green);
    color: white;
}

.pipeline-strip-arrow {
    color: var(--border-dark);
    font-size: 1.4rem;
    padding: 0 8px;
    flex-shrink: 0;
}

/* ── TWO-COLUMN SUBSTRATE FIELDS ── */
.two-col-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 8px;
}

.subcol {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 18px;
    background: var(--bg);
}

.subcol-heading {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--teal);
    margin-bottom: 12px;
}

.field-group--tight {
    margin-bottom: 10px;
}

.field-group--tight .field-label {
    font-size: 0.78rem;
}

/* ── C:N RATIO DISPLAY ── */
.cn-ratio-display {
    background: var(--green-pale);
    border: 1px solid var(--green-mid);
    border-radius: 6px;
    padding: 10px 16px;
    font-family: var(--mono);
    font-size: 0.82rem;
    color: var(--text-mid);
    margin: 4px 0 16px;
}

.cn-ratio-display strong {
    color: var(--green);
    font-size: 0.95rem;
}

.cn-note {
    color: var(--text-dim);
    font-size: 0.76rem;
    margin-left: 4px;
}

/* ── THREE-CARD TRY OUTPUT ── */
.output-cards--three {
    grid-template-columns: 1fr 1fr 1fr;
}

.output-card--tertiary {
    background: var(--white);
    border: 2px solid var(--teal);
    color: var(--text);
}

.output-card-tag {
    font-family: var(--sans);
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 6px;
    opacity: 0.65;
}

.output-card--primary   .output-card-tag  { color: rgba(255,255,255,0.9); }
.output-card--secondary .output-card-tag  { color: var(--green); }
.output-card--tertiary  .output-card-tag  { color: var(--teal); }
.output-card--tertiary  .output-card-value { color: var(--teal); }

.output-card-desc {
    font-size: 0.74rem;
    margin-top: 8px;
    opacity: 0.65;
    font-family: var(--sans);
}

/* ── DRIVER ROWS — expandable ── */
.driver-row-wrap {
    border-bottom: 1px solid var(--border);
}
.driver-row-wrap:last-child { border-bottom: none; }

.driver-row-wrap > summary {
    list-style: none;
    cursor: pointer;
}
.driver-row-wrap > summary::-webkit-details-marker { display: none; }

.driver-row-wrap[open] > summary .driver-param::before {
    content: '▾ ';
    color: var(--green);
    font-size: 0.75rem;
}

.driver-row-wrap:not([open]) > summary .driver-param::before {
    content: '▸ ';
    color: var(--text-dim);
    font-size: 0.75rem;
}

.driver-note {
    padding: 10px 20px 14px 36px;
    font-size: 0.8rem;
    color: var(--text-mid);
    background: var(--green-pale);
    border-top: 1px solid var(--green-mid);
    font-family: var(--sans);
    line-height: 1.6;
}

/* ── SUGGESTIONS ── */
.suggestions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin: 14px 0 28px;
}

.suggestion-card {
    border-radius: 8px;
    padding: 18px 20px;
    border: 1px solid var(--border);
}

.suggestion-card--green  { background: var(--green-pale);  border-color: var(--green-mid); }
.suggestion-card--teal   { background: #e6f4f2;             border-color: #b0dcd7; }
.suggestion-card--neutral{ background: var(--white);        border-color: var(--border); }

.suggestion-icon {
    font-size: 1.1rem;
    color: var(--green);
    margin-bottom: 8px;
}

.suggestion-card--teal .suggestion-icon { color: var(--teal); }
.suggestion-card--neutral .suggestion-icon { color: var(--text-dim); }

.suggestion-title {
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text);
    margin-bottom: 6px;
}

.suggestion-body {
    font-size: 0.8rem;
    color: var(--text-mid);
    line-height: 1.6;
}

/* ── RESPONSIVE ADDITIONS ── */
@media (max-width: 1000px) {
    .output-cards--three  { grid-template-columns: 1fr 1fr; }
    .suggestions-grid     { grid-template-columns: 1fr 1fr; }
    .two-col-fields       { grid-template-columns: 1fr; }
}

@media (max-width: 650px) {
    .output-cards--three  { grid-template-columns: 1fr; }
    .suggestions-grid     { grid-template-columns: 1fr; }
    .pipeline-strip       { display: none; }
}


/* ═══════════════════════════════════════════════════════
   PROGRESS PAGE
   ═══════════════════════════════════════════════════════ */

.progress-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 28px;
    align-items: start;
    margin-top: 8px;
}

/* ── Stage tracker (left column) ── */
.stage-tracker {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 28px 28px 20px;
    box-shadow: var(--shadow-sm);
}

.stage-item {
    display: grid;
    grid-template-columns: 16px 32px 1fr auto;
    align-items: center;
    gap: 0 12px;
    padding: 10px 0;
    position: relative;
}

.stage-connector {
    width: 2px;
    background: var(--border);
    margin: 0 auto;
}

.stage-connector--top    { height: 10px; align-self: start; }
.stage-connector--bottom { height: 10px; align-self: end; }

/* Hide connectors on first/last */
.stage-item:first-child .stage-connector--top,
.stage-item:last-child  .stage-connector--bottom { visibility: hidden; }

.stage-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--border-dark);
    background: var(--bg3);
    flex-shrink: 0;
    transition: background 0.3s, border-color 0.3s;
    grid-column: 2;
}

.stage-dot--pending  { background: var(--bg3);     border-color: var(--border-dark); }
.stage-dot--running  { background: #fff8e1;         border-color: #f0a500;
                        box-shadow: 0 0 0 4px rgba(240,165,0,0.15);
                        animation: pulse-ring 1.4s ease-out infinite; }
.stage-dot--done     { background: var(--green);    border-color: var(--green); }
.stage-dot--warning  { background: #fff3cd;         border-color: #e6a817; }
.stage-dot--error    { background: #fdf2f2;         border-color: #d94040; }

@keyframes pulse-ring {
    0%   { box-shadow: 0 0 0 0   rgba(240,165,0,0.4); }
    70%  { box-shadow: 0 0 0 8px rgba(240,165,0,0);   }
    100% { box-shadow: 0 0 0 0   rgba(240,165,0,0);   }
}

.stage-content { grid-column: 3; }

.stage-name {
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text);
}

.stage-desc {
    font-size: 0.76rem;
    color: var(--text-dim);
    margin-top: 1px;
}

.stage-msg {
    font-size: 0.76rem;
    color: var(--text-mid);
    margin-top: 3px;
    font-family: var(--mono);
    min-height: 14px;
}

.stage-badge {
    grid-column: 4;
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

.stage-badge--pending { background: var(--bg3);       color: var(--text-dim); }
.stage-badge--running { background: #fff8e1;           color: #b07d00; }
.stage-badge--done    { background: var(--green-pale); color: var(--green); }
.stage-badge--warning { background: #fff3cd;           color: #8a6000; }
.stage-badge--error   { background: #fdf2f2;           color: #d94040; }

/* Branch indicator */
.branch-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    margin: 4px 0;
}

.branch-line {
    flex: 1;
    height: 1px;
    background: var(--border);
    border-top: 1px dashed var(--border-dark);
}

.branch-label {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

/* Parallel stage columns */
.parallel-stages {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 4px;
}

.parallel-col {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
}

.parallel-col-header {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--green);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--green-mid);
}

.stage-item--parallel {
    grid-template-columns: 28px 1fr auto;
    gap: 0 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.stage-item--parallel:last-child { border-bottom: none; }

.stage-item--parallel .stage-dot {
    width: 28px;
    height: 28px;
    grid-column: 1;
}

.stage-item--parallel .stage-content { grid-column: 2; }
.stage-item--parallel .stage-badge   { grid-column: 3; }

/* ── Sidebar (right column) ── */
.progress-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.progress-status-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    box-shadow: var(--shadow-sm);
}

.progress-status-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 3px;
}

.progress-status-dot--pending { background: var(--border-dark); }
.progress-status-dot--running { background: #f0a500;
    animation: pulse-ring 1.4s ease-out infinite; }
.progress-status-dot--warning { background: #e6a817; }
.progress-status-dot--done    { background: var(--green); }
.progress-status-dot--error   { background: #d94040; }

.progress-status-title {
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--text);
}

.progress-status-sub {
    font-size: 0.78rem;
    color: var(--text-dim);
    margin-top: 3px;
    font-family: var(--mono);
}

/* Params summary */
.progress-params {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
}

.progress-params-title {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    margin-bottom: 10px;
}

.progress-param-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.78rem;
    color: var(--text-mid);
}

.progress-param-row:last-child { border-bottom: none; }
.progress-param-row code { font-family: var(--mono); font-size: 0.76rem; color: var(--text); }

/* Log box */
.progress-log-box {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.progress-log-title {
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    padding: 10px 14px;
    background: var(--bg3);
    border-bottom: 1px solid var(--border);
}

.progress-log {
    font-family: var(--mono);
    font-size: 0.73rem;
    color: var(--text-mid);
    padding: 12px 14px;
    height: 200px;
    overflow-y: auto;
    white-space: pre-wrap;
    line-height: 1.6;
    background: var(--bg);
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .progress-layout    { grid-template-columns: 1fr; }
    .parallel-stages    { grid-template-columns: 1fr; }
}


/* ═══════════════════════════════════════════════════════
   RESULTS PAGE — TRY COMPARISON TABLE
   ═══════════════════════════════════════════════════════ */

.memote-badge {
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid;
}
.memote-badge--good    { background: var(--green-pale); border-color: var(--green-mid);  color: var(--green); }
.memote-badge--ok      { background: #fffbe6;           border-color: #f0d080;           color: #8a6000; }
.memote-badge--warn    { background: #fdf2f2;           border-color: #f0c0c0;           color: #d94040; }
.memote-badge--neutral { background: var(--bg3);        border-color: var(--border);     color: var(--text-dim); }

.try-comparison { margin: 14px 0 24px; }

.try-table {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.try-row {
    display: grid;
    grid-template-columns: 180px 1fr 1fr 130px;
    gap: 0;
    border-bottom: 1px solid var(--border);
}
.try-row:last-child { border-bottom: none; }

.try-row--header {
    background: var(--bg3);
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

.try-metric-col,
.try-branch-col,
.try-delta-col {
    padding: 14px 18px;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
}

.try-delta-col { border-right: none; align-items: flex-start; }

.try-metric-col strong { font-family: var(--sans); font-weight: 700; font-size: 0.88rem; color: var(--text); }
.try-metric-col small  { font-size: 0.74rem; color: var(--text-dim); }

.try-branch-col--a { background: rgba(26,140,82,0.03); }
.try-branch-col--b { background: rgba(14,122,110,0.03); }

.try-branch-col small { font-family: var(--sans); font-size: 0.7rem; color: var(--text-dim); font-weight: 400; display: block; margin-top: 1px; }

.try-value { font-family: var(--sans); font-size: 1.5rem; font-weight: 800; color: var(--green); letter-spacing: -0.5px; }
.try-branch-col--b .try-value { color: var(--teal); }
.try-unit  { font-size: 0.78rem; color: var(--text-dim); }
.try-range { font-family: var(--mono); font-size: 0.72rem; color: var(--text-dim); margin-top: 2px; }
.try-na    { color: var(--text-dim); font-size: 0.85rem; }

.try-delta { font-family: var(--sans); font-size: 1rem; font-weight: 700; }
.try-delta--pos  { color: var(--green); }
.try-delta--neg  { color: var(--teal); }
.try-delta--zero { color: var(--text-dim); }
.try-delta-pct   { font-size: 0.74rem; color: var(--text-dim); margin-top: 2px; }

/* Solver status row */
.solver-status-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin: 12px 0 24px;
}

.solver-status-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.solver-label { font-family: var(--sans); font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); }
.solver-val   { font-family: var(--mono); font-size: 0.8rem; color: var(--text); }
.solver-val--ok   { color: var(--green); font-weight: 700; }
.solver-val--warn { color: #d94040; font-weight: 700; }

/* ═══════════════════════════════════════════════════════
   HISTORY PAGE
   ═══════════════════════════════════════════════════════ */

.history-table {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin: 14px 0;
}

.history-row {
    display: grid;
    grid-template-columns: 2fr 2fr 1.5fr 120px;
    align-items: center;
    gap: 0;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    font-size: 0.83rem;
}
.history-row:last-child { border-bottom: none; }

.history-row--header {
    background: var(--bg3);
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

.btn-history-view {
    font-family: var(--sans);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 4px;
    background: var(--green-pale);
    border: 1px solid var(--green-mid);
    color: var(--green);
    text-decoration: none;
    white-space: nowrap;
}
.btn-history-view:hover { background: var(--green-mid); text-decoration: none; }
.btn-history-view--running { background: #fffbe6; border-color: #f0d080; color: #8a6000; }

.history-status { font-size: 0.78rem; color: var(--text-dim); }
.history-status--error { color: #d94040; }

/* ═══════════════════════════════════════════════════════
   CREDITS PAGE
   ═══════════════════════════════════════════════════════ */

.credits-table {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin: 14px 0 24px;
}

.credits-row {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr 1fr;
    gap: 0;
    padding: 11px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 0.83rem;
    color: var(--text-mid);
}
.credits-row:last-child { border-bottom: none; }
.credits-row--header {
    background: var(--bg3);
    font-family: var(--sans);
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

/* Credits table with only 2 cols */
.credits-table .credits-row:not(.credits-row--header):has(:nth-child(2):last-child) {
    grid-template-columns: 2fr 3fr;
}

/* ── RESPONSIVE ADDITIONS ── */
@media (max-width: 1000px) {
    .try-row              { grid-template-columns: 160px 1fr 1fr; }
    .try-delta-col        { display: none; }
    .solver-status-row    { grid-template-columns: 1fr 1fr; }
    .history-row          { grid-template-columns: 1fr 1fr 100px; }
    .history-row > span:nth-child(2) { display: none; }
    .credits-row          { grid-template-columns: 2fr 2fr; }
    .credits-row > span:nth-child(3),
    .credits-row > span:nth-child(4) { display: none; }
}

@media (max-width: 650px) {
    .try-row              { grid-template-columns: 1fr; }
    .try-row--header      { display: none; }
    .try-branch-col       { border-right: none; border-bottom: 1px solid var(--border); }
    .solver-status-row    { grid-template-columns: 1fr; }
    .history-row          { grid-template-columns: 1fr auto; }
}


/* ── CORRECTION FACTORS STRIP ── */
.correction-strip {
    display: flex;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin: 0 0 20px;
    background: var(--white);
}

.correction-item {
    flex: 1;
    padding: 12px 14px;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: center;
}

.correction-item:last-child { border-right: none; }

.correction-item--total {
    background: var(--green-pale);
}

.cf-label {
    font-family: var(--sans);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

.cf-val {
    font-family: var(--sans);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
}

.correction-item--total .cf-val { color: var(--green); }

.try-computing {
    color: var(--text-dim);
    font-size: 0.8rem;
    font-style: italic;
}

@media (max-width: 800px) {
    .correction-strip { flex-wrap: wrap; }
    .correction-item  { flex: 1 0 30%; }
}