/* CS AgriCalc 2026 — the Learn library.
 *
 * Six shelves: the farm diary, field school, students, staff and extension,
 * farm business, and after the harvest. Same paper-and-green palette as the
 * rest of the app, because this is read in the same places: a veranda, a
 * classroom, a field day under a tree.
 *
 * Type is set for reading on a phone in daylight: generous line height, no
 * long measure, and tables that scroll rather than squeeze.
 */

.ln{max-width:760px;margin:0 auto;padding:0 2px}

/* ---------- the hub ---------- */

.ln-hero{
  margin:6px 0 18px;padding:18px 18px 20px;border-radius:20px;
  background:linear-gradient(155deg,#10472F 0%,#0B3D2E 62%,#0A3327 100%);
  color:#F7F3E8;position:relative;overflow:hidden;
}
.ln-hero:after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,169,59,.22),transparent 70%);
}
.ln-hero h1{margin:0 0 6px;font-size:1.42rem;line-height:1.2;letter-spacing:-.01em}
.ln-hero p{margin:0;font-size:.94rem;line-height:1.55;color:rgba(247,243,232,.82);max-width:46ch}
.ln-hero .ln-hero__meta{
  display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;font-size:.76rem;
  letter-spacing:.06em;text-transform:uppercase;color:rgba(247,243,232,.62)
}

.ln-search{position:relative;margin:0 0 18px}
.ln-search input{
  width:100%;padding:13px 14px 13px 42px;border-radius:14px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:.95rem;box-shadow:var(--shadow)
}
.ln-search input:focus{outline:2px solid rgba(16,71,47,.35);outline-offset:1px}
.ln-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.45}
.ln-search__out{margin-top:10px}
.ln-search__out a{
  display:block;padding:10px 12px;border:1px solid var(--line);border-radius:12px;
  background:#fff;margin-bottom:8px;text-decoration:none;color:var(--ink)
}
.ln-search__out a b{display:block;font-size:.94rem}
.ln-search__out a span{display:block;font-size:.8rem;color:var(--muted);margin-top:2px}

.ln-shelves{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:640px){.ln-shelves{grid-template-columns:1fr 1fr}}

.ln-shelf{
  display:block;text-align:left;width:100%;padding:16px;border-radius:18px;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow);cursor:pointer;position:relative;overflow:hidden;
  transition:transform .12s ease,border-color .12s ease
}
.ln-shelf:hover{transform:translateY(-1px);border-color:#C9D8CE}
.ln-shelf__ico{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--green-050);color:var(--green-800);margin-bottom:10px}
.ln-shelf h2{margin:0 0 4px;font-size:1.02rem;letter-spacing:-.01em}
.ln-shelf p{margin:0;font-size:.84rem;line-height:1.5;color:var(--muted)}
.ln-shelf__n{position:absolute;right:14px;top:14px;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:#9AA79E}

/* ---------- a shelf ---------- */

.ln-crumb{display:flex;align-items:center;gap:8px;margin:2px 0 10px;font-size:.8rem;color:var(--muted)}
.ln-crumb button{background:none;border:0;padding:0;color:var(--green-700);font-weight:600;cursor:pointer}
.ln-crumb span{opacity:.5}

.ln-head{margin:0 0 16px}
.ln-head h1{margin:0 0 6px;font-size:1.34rem;line-height:1.2}
.ln-head p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.55;max-width:52ch}

.ln-part{margin:0 0 20px}
.ln-part__h{
  display:flex;align-items:baseline;gap:10px;margin:0 0 8px;
  font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:#7C8A80;font-weight:700
}
.ln-part__h:after{content:"";flex:1;height:1px;background:var(--line)}

.ln-list{display:flex;flex-direction:column;gap:8px}
.ln-item{
  display:flex;gap:12px;align-items:flex-start;width:100%;text-align:left;padding:13px 14px;
  border-radius:14px;border:1px solid var(--line);background:#fff;cursor:pointer
}
.ln-item:hover{border-color:#C9D8CE}
.ln-item__body{flex:1;min-width:0}
.ln-item b{display:block;font-size:.95rem;line-height:1.35;margin-bottom:2px}
.ln-item span{display:block;font-size:.81rem;color:var(--muted);line-height:1.45}
.ln-item__mins{flex:none;font-size:.7rem;color:#9AA79E;letter-spacing:.04em;padding-top:2px}

/* ---------- an article ---------- */

.ln-art{max-width:68ch}
.ln-art h1{margin:0 0 6px;font-size:1.4rem;line-height:1.22;letter-spacing:-.01em}
.ln-art__dek{margin:0 0 14px;color:var(--muted);font-size:.94rem;line-height:1.55}
.ln-art__meta{
  display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0 0 16px;padding-bottom:14px;
  border-bottom:1px solid var(--line);font-size:.74rem;color:#8A968C;letter-spacing:.03em
}
.ln-art__meta .dot{opacity:.4}

.ln-art h2{margin:22px 0 8px;font-size:1.06rem;letter-spacing:-.005em}
.ln-art h3{margin:16px 0 6px;font-size:.94rem}
.ln-art p{margin:0 0 11px;font-size:.94rem;line-height:1.66}
.ln-art ul,.ln-art ol{margin:0 0 12px;padding-left:20px}
.ln-art li{margin:0 0 6px;font-size:.94rem;line-height:1.6}
.ln-art strong{font-weight:700}
.ln-art em{font-style:italic;color:#4A5A4E}
.ln-art a{color:var(--green-700);text-decoration:underline;text-underline-offset:2px}
.ln-art code{background:#EEF2EE;border-radius:5px;padding:1px 5px;font-size:.86em}

.ln-art table{width:100%;border-collapse:collapse;margin:6px 0 14px;font-size:.86rem}
.ln-art th{
  text-align:left;font-size:.68rem;letter-spacing:.07em;text-transform:uppercase;color:#7C8A80;
  padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:bottom
}
.ln-art td{padding:8px;border-bottom:1px solid #EFEBE1;vertical-align:top;line-height:1.5}
.ln-art tr:last-child td{border-bottom:0}

.ln-tbl{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -2px 12px}

.ln-call{
  margin:0 0 14px;padding:12px 14px;border-radius:14px;border:1px solid #DCE7DE;background:#F3F8F4;
  font-size:.9rem;line-height:1.6
}
.ln-call b{display:block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#3F6B4E;margin-bottom:4px}
.ln-call--warn{border-color:#F0DCC2;background:#FDF6EC}
.ln-call--warn b{color:#8A5A16}
.ln-call--do{border-color:#D6E3EE;background:#F2F7FB}
.ln-call--do b{color:#28506B}

.ln-src{margin:22px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:.78rem;color:#7C8A80;line-height:1.6}
.ln-src b{display:block;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:5px;color:#8A968C}
.ln-src a{color:#4E6B57}

.ln-next{display:flex;flex-direction:column;gap:8px;margin-top:20px}
.ln-next button{
  text-align:left;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;
  font-size:.9rem;cursor:pointer
}
.ln-next small{display:block;color:#9AA79E;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:2px}

/* ---------- the diary ---------- */

.ln-diary{display:flex;flex-direction:column;gap:12px}
.ln-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:14px}
.ln-card h2{margin:0 0 4px;font-size:1rem}
.ln-card p.note{margin:0 0 12px;font-size:.82rem;color:var(--muted);line-height:1.5}

.ln-form{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ln-form .wide{grid-column:1 / -1}
.ln-form label{display:block;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:#7C8A80;margin-bottom:4px;font-weight:600}
.ln-form input,.ln-form select,.ln-form textarea{
  width:100%;padding:10px 11px;border-radius:11px;border:1px solid var(--line);background:#FCFBF7;
  color:var(--ink);font-size:.92rem;font-family:inherit
}
.ln-form textarea{min-height:72px;resize:vertical;line-height:1.5}
.ln-form input:focus,.ln-form select:focus,.ln-form textarea:focus{outline:2px solid rgba(16,71,47,.25);outline-offset:1px;background:#fff}

.ln-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 16px;border-radius:12px;
  border:1px solid var(--green-800);background:var(--green-800);color:#F7F3E8;font-weight:700;font-size:.9rem;cursor:pointer
}
.ln-btn:hover{background:var(--green-700)}
.ln-btn--ghost{background:#fff;color:var(--green-800);border-color:#C9D8CE}
.ln-btn--sm{padding:8px 12px;font-size:.82rem;border-radius:10px}
.ln-btn--danger{background:#fff;color:var(--danger);border-color:#E7C9C6}

.ln-days{display:flex;flex-direction:column;gap:14px;margin-top:4px}
.ln-day__h{
  display:flex;align-items:baseline;justify-content:space-between;gap:10px;
  font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#7C8A80;font-weight:700;margin:0 0 6px
}
.ln-note{
  border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px 13px;margin-bottom:8px
}
.ln-note__top{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:5px}
.ln-tag{
  font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;font-weight:700;color:#3F6B4E;
  background:#EAF2EC;border-radius:999px;padding:2px 8px
}
.ln-tag--cost{background:#FBEFE2;color:#8A5A16}
.ln-tag--obs{background:#EDF2F8;color:#28506B}
.ln-note__when{font-size:.72rem;color:#9AA79E;margin-left:auto}
.ln-note p{margin:0;font-size:.9rem;line-height:1.55;white-space:pre-wrap}
.ln-note__foot{display:flex;gap:8px;align-items:center;margin-top:8px;font-size:.74rem;color:#8A968C}
.ln-note__foot button{background:none;border:0;color:#A34B3F;font-size:.74rem;cursor:pointer;padding:0;text-decoration:underline}

.ln-empty{
  border:1px dashed #D8D2C4;border-radius:16px;padding:22px 16px;text-align:center;color:var(--muted);font-size:.88rem;line-height:1.6
}

/* ---------- calculators ---------- */

.ln-calc{display:grid;grid-template-columns:1fr;gap:12px}
.ln-out{
  border-radius:14px;background:#0F3A2B;color:#F7F3E8;padding:14px 16px;margin-top:4px
}
.ln-out b{display:block;font-size:1.5rem;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.ln-out span{display:block;font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(247,243,232,.66);margin-top:3px}
.ln-out .ln-out__row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-top:1px solid rgba(247,243,232,.14);font-size:.85rem}
.ln-out .ln-out__row:first-of-type{border-top:0;margin-top:8px}
.ln-out .ln-out__row span{text-transform:none;letter-spacing:0;color:rgba(247,243,232,.8);margin:0}

@media print{
  .tabs,.top,.ln-search,.ln-btn,.ln-crumb,.ln-next{display:none!important}
  body{background:#fff}
  .ln-art{max-width:none}
}

/* Six tabs now: Home, Add, Book, Learn, Plan, More. */
.tabs{grid-template-columns:repeat(6,1fr)}
.tab{font-size:10.5px}

.ln-art figure{margin:14px 0 16px}
.ln-art figure img{width:100%;height:auto;display:block;border-radius:14px;border:1px solid var(--line);background:#111}
.ln-art figcaption{margin-top:7px;font-size:.78rem;line-height:1.5;color:#7C8A80}

/* ---------- weed gallery: photograph, name, and the control that fails ---------- */
.ln-weeds{display:grid;grid-template-columns:1fr;gap:16px;margin:18px 0 8px}
@media (min-width:620px){.ln-weeds{grid-template-columns:1fr 1fr}}
.ln-note{font-size:.78rem;color:#6E7B70;line-height:1.55;border-left:2px solid #DCD3BA;padding-left:10px}
.ln-weed{
  margin:0;background:#fff;border:1px solid #E3DCC9;border-radius:16px;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(11,61,46,.05)
}
.ln-weed img{width:100%;height:auto;display:block;aspect-ratio:4/3;object-fit:cover;background:#EFEADC}
.ln-weed figcaption{padding:12px 13px 14px;display:flex;flex-direction:column;gap:2px}
.ln-weed b{font-family:var(--serif,Georgia,serif);font-size:1.02rem;color:#0B3D2E;letter-spacing:.01em}
.ln-weed em{font-size:.78rem;color:#7C8A7D;font-style:italic;margin-bottom:6px}
.ln-weed dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:3px 8px;align-items:start}
.ln-weed dt{
  font-size:.6rem;letter-spacing:.06em;text-transform:uppercase;color:#9A8654;font-weight:700;
  padding-top:2px;white-space:nowrap
}
.ln-weed dd{margin:0;font-size:.79rem;line-height:1.45;color:#3B4A40}
.ln-weed dd:last-child{color:#7A4B2A}

/* ---------- the crops Zambia grows: one compact card per crop ---------- */
.ln-crops{display:grid;grid-template-columns:1fr;gap:14px;margin:18px 0 10px}
@media (min-width:620px){.ln-crops{grid-template-columns:1fr 1fr}}
@media (min-width:940px){.ln-crops{grid-template-columns:repeat(3,1fr)}}
.ln-crop{
  position:relative;background:#fff;border:1px solid #E3DCC9;border-radius:16px;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(11,61,46,.05)
}
.ln-crop img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block;background:#EFEADC}
.ln-crop__body{padding:11px 13px 13px;display:flex;flex-direction:column;gap:4px;position:relative}
.ln-crop__n{
  position:absolute;top:-26px;right:10px;font-family:Georgia,serif;font-size:.72rem;letter-spacing:.06em;
  background:rgba(11,61,46,.86);color:#F2D079;padding:2px 7px;border-radius:99px
}
.ln-crop h3{margin:0;font-family:var(--serif,Georgia,serif);font-size:1.02rem;color:#0B3D2E;line-height:1.25}
.ln-crop h3 em{display:block;font-family:inherit;font-size:.76rem;color:#7C8A7D;font-style:italic;margin-top:1px}
.ln-crop__local{margin:0;font-size:.68rem;color:#9A8654;letter-spacing:.02em}
.ln-crop p{margin:0;font-size:.79rem;line-height:1.45;color:#3B4A40}
.ln-crop p b{
  display:block;font-size:.56rem;letter-spacing:.08em;text-transform:uppercase;color:#9AA69B;font-weight:700;
  margin-bottom:1px
}
.ln-crop__watch{display:flex;flex-direction:column;gap:4px;margin-top:4px}
.ln-crop__watch b{color:#9A8654 !important}
.ln-crop__watch span{display:flex;flex-wrap:wrap;gap:4px}
.ln-crop__watch i{
  font-style:normal;font-size:.66rem;padding:2px 7px;border-radius:99px;background:#F4EFE0;color:#6B5A2E;border:1px solid #E6DCC2
}
.ln-crop__credit{margin-top:6px !important;font-size:.6rem !important;color:#A2ACA3 !important}
.ln-crop__credit a{color:#A2ACA3}

/* the control that actually works, set apart from the one that does not */
.ln-weed dd.ln-weed__works{
  color:#1F5C3F;background:#F0F7F1;border:1px solid #DCEBDF;border-radius:9px;padding:5px 7px;margin:1px 0
}
.ln-weed dt:nth-of-type(3){color:#2C7A5B}