/* ============= Premium Calculator Suite ============= */

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  color: var(--fg);
  background: var(--bg);
  transition: background-color .3s ease, color .3s ease;
}

/* ---------- THEMES ---------- */
.theme-light      { --bg:#f6f7fb; --fg:#0f1115; --panel:#ffffff; --panel-2:#f2f4f8; --accent:#2b6cff; --accent-2:#22d3ee; --border:#e6e8ef; --muted:#6b7280; --shadow:0 6px 20px rgba(20,30,60,.06); }
.theme-dark       { --bg:#0b0f14; --fg:#e6edf3; --panel:#121822; --panel-2:#0e131c; --accent:#7cc4ff; --accent-2:#a78bfa; --border:#1e2735; --muted:#8b93a7; --shadow:0 6px 20px rgba(0,0,0,.35); }
.theme-colorful   { --bg:#fff7ec; --fg:#1b1b1b; --panel:#ffffff; --panel-2:#ffeecf; --accent:#ff5a5f; --accent-2:#ffb703; --border:#ffd8a1; --muted:#7a6653; --shadow:0 6px 20px rgba(255,120,60,.12); }
.theme-elegant    { --bg:#1a1621; --fg:#f4ecd8; --panel:#231d2e; --panel-2:#1c1725; --accent:#c9a86a; --accent-2:#d4b98c; --border:#3a3145; --muted:#a89b8a; --shadow:0 8px 30px rgba(0,0,0,.5); }
.theme-neon       { --bg:#04060c; --fg:#c3f3ff; --panel:#0a1224; --panel-2:#060a15; --accent:#00ffe0; --accent-2:#ff2bd6; --border:#123055; --muted:#5c9fbf; --shadow:0 0 24px rgba(0,255,224,.15); }
.theme-minimalist { --bg:#fafafa; --fg:#111; --panel:#ffffff; --panel-2:#f2f2f2; --accent:#111; --accent-2:#555; --border:#e0e0e0; --muted:#888; --shadow:none; }
.theme-glass      { --bg:linear-gradient(135deg,#89f7fe,#66a6ff); --fg:#0b1220; --panel:rgba(255,255,255,0.35); --panel-2:rgba(255,255,255,0.2); --accent:#0b57d0; --accent-2:#8b5cf6; --border:rgba(255,255,255,.5); --muted:#3a4a63; --shadow:0 8px 32px rgba(31,38,135,.15); }
.theme-cyberpunk  { --bg:#0d001a; --fg:#ffe6ff; --panel:#1a0033; --panel-2:#12002a; --accent:#ff007f; --accent-2:#00e5ff; --border:#3a005c; --muted:#a678d8; --shadow:0 0 30px rgba(255,0,127,.25); }
.theme-nature     { --bg:#f2f7ee; --fg:#22331b; --panel:#ffffff; --panel-2:#e7f0dc; --accent:#4d8f34; --accent-2:#a3c261; --border:#c9dbb0; --muted:#5a6f4a; --shadow:0 6px 20px rgba(60,120,40,.08); }
.theme-ocean      { --bg:#e6f4fb; --fg:#053246; --panel:#ffffff; --panel-2:#d2ecf7; --accent:#0288d1; --accent-2:#26c6da; --border:#a9d8ec; --muted:#3d6b83; --shadow:0 6px 20px rgba(2,136,209,.1); }
.theme-sunset     { --bg:linear-gradient(160deg,#ffb88c,#de6262); --fg:#2b0e0e; --panel:#fff2ea; --panel-2:#fde0ce; --accent:#c1272d; --accent-2:#ff6f61; --border:#f6bfa5; --muted:#7a4a3f; --shadow:0 6px 24px rgba(193,39,45,.15); }

/* ---------- LAYOUT ---------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 28px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(10px);
}
.brand { font-size: 22px; font-weight: 700; letter-spacing: -0.5px; display: flex; align-items: center; gap: 10px; }
.brand span { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.theme-picker { display: flex; align-items: center; gap: 10px; }
.theme-picker label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }

.body { display: grid; grid-template-columns: 280px 1fr; min-height: calc(100vh - 130px); }

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  overflow-y: auto;
}
.filter { margin-bottom: 20px; }
.filter label { display: block; font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }

.calc-list { display: flex; flex-direction: column; gap: 4px; }
.nav-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: transparent;
  color: var(--fg);
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  text-align: left;
  transition: background-color .15s ease, transform .15s ease, border-color .15s ease;
  font-family: inherit;
  width: 100%;
}
.nav-btn:hover { background: var(--panel-2); transform: translateX(2px); border-color: var(--border); }
.nav-btn.active {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow);
}
.nav-icon { font-size: 18px; width: 22px; text-align: center; }

.main { padding: 20px 24px; overflow-y: auto; }

/* ---------- Calculator ---------- */
.calc { max-width: 1100px; margin: 0 auto; }
.calc h2 { margin: 0 0 8px; font-size: 26px; font-weight: 700; letter-spacing: -0.5px; }
.calc > .muted { margin: 0 0 16px; }
.calc h3 { margin: 0 0 10px; font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.3px; font-weight: 600; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px; }
.card.full { grid-column: 1 / -1; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.card label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin: 8px 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.card input, .card select, .card textarea {
  width: 100%;
  padding: 8px 10px;
  background: var(--panel-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.card input:focus, .card select:focus, .card textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,0,0,.06);
}

button {
  margin-top: 14px;
  padding: 10px 18px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  border: 0;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: transform .15s ease, opacity .15s ease;
  font-family: inherit;
}
button:hover { transform: translateY(-1px); opacity: 0.95; }
button:active { transform: translateY(0); }

.row { display: flex; justify-content: space-between; align-items: center; padding: 7px 0; border-bottom: 1px dashed var(--border); }
.row:last-child { border-bottom: 0; }
.row span { color: var(--muted); font-size: 13px; }
.row b { font-size: 16px; }

.result-big {
  margin-top: 16px;
  padding: 16px;
  background: var(--panel-2);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
}

.results { margin-top: 14px; }
.muted { color: var(--muted); font-size: 13px; }

.dot { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: middle; margin-right: 4px; }
.dot.green { background: #4CAF50; }
.dot.orange { background: #FF5722; }

.table-wrap { max-height: 400px; overflow-y: auto; margin-top: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: var(--panel-2); position: sticky; top: 0; text-transform: uppercase; font-size: 11px; letter-spacing: 1px; color: var(--muted); }

.footer { text-align: center; padding: 18px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); background: var(--panel); }

.theme-glass .card, .theme-glass .topbar, .theme-glass .sidebar, .theme-glass .footer {
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ---------- Recent panel ---------- */
.recent { margin-top: 24px; border-top: 1px solid var(--border); padding-top: 16px; }
.recent-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.recent-header label { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); }
.link-btn {
  background: transparent; color: var(--muted); border: 0; padding: 2px 6px;
  font-size: 11px; cursor: pointer; text-transform: uppercase; letter-spacing: 1px;
  margin: 0; font-family: inherit;
}
.link-btn:hover { color: var(--accent); background: transparent; transform: none; }
.recent-list { display: flex; flex-direction: column; gap: 4px; }
.recent-item {
  padding: 8px 10px; background: var(--panel-2); border-radius: 6px;
  font-size: 12px; cursor: pointer; border: 1px solid transparent;
  transition: border-color .15s ease;
}
.recent-item:hover { border-color: var(--accent); }
.recent-item .r-title { font-weight: 600; margin-bottom: 2px; }
.recent-item .r-value { color: var(--muted); font-size: 11px; }
.recent-empty { color: var(--muted); font-size: 12px; padding: 6px 2px; }

/* ---------- Favorites ---------- */
.fav-star {
  margin-left: auto; background: transparent; border: 0; padding: 2px 4px;
  cursor: pointer; font-size: 15px; color: var(--muted); opacity: .5;
  transition: opacity .15s ease, transform .15s ease;
}
.fav-star:hover { opacity: 1; transform: scale(1.15); background: transparent; }
.fav-star.on { color: #f5b301; opacity: 1; }
.nav-btn.active .fav-star { color: #fff; opacity: .9; }
.fav-sep { height: 1px; background: var(--border); margin: 6px 4px; opacity: .6; }

/* ---------- Presets / share / print ---------- */
.preset-row { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0 10px; }
.preset-chip {
  padding: 4px 10px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 999px; cursor: pointer; font-size: 11px; color: var(--fg);
  font-family: inherit; transition: border-color .15s ease;
}
.preset-chip:hover { border-color: var(--accent); }
.ghost-btn {
  margin-top: 14px; margin-left: 8px; padding: 10px 14px;
  background: transparent; color: var(--fg); border: 1px solid var(--border);
  border-radius: 8px; font-size: 13px; cursor: pointer; font-family: inherit;
}
.ghost-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
@media print {
  .topbar, .sidebar, .footer, button, .ghost-btn, .preset-row { display: none !important; }
  .main { padding: 0; }
  .body { grid-template-columns: 1fr; }
  .card { box-shadow: none; border: 1px solid #ddd; }
}

/* ---------- Compare Loans ---------- */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.compare-verdict {
  padding: 18px; border-radius: 12px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 600; text-align: center; font-size: 15px;
}
.diff-good { color: #4CAF50; font-weight: 700; }
.diff-bad  { color: #FF5722; font-weight: 700; }

@media (max-width: 900px) {
  .body { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
  .grid-3, .compare-grid { grid-template-columns: 1fr; }
  .main { padding: 20px; }
}