/* Shared styling for the ZeeSharp mathematics tools. */
:root {
  --m-blue: #1a73e8;
  --m-blue-dark: #1558b0;
  --m-text: #202124;
  --m-muted: #5f6368;
  --m-border: #dadce0;
  --m-bg: #fff;
  --m-alt: #f8f9fa;
  --m-green: #137333;
  --m-red: #c5221f;
  --m-amber: #b06000;
}

.m-layout { max-width: 940px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.m-card { background: var(--m-bg); border: 1.5px solid var(--m-border); border-radius: 14px; padding: 22px; }

.m-label { display: block; font-size: .78rem; font-weight: 700; margin-bottom: 6px; color: var(--m-text); }
.m-section {
  font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em;
  color: var(--m-muted); margin-bottom: 12px;
}

.m-expr {
  width: 100%; padding: 14px 16px; border: 1.5px solid var(--m-border); border-radius: 10px;
  font-family: 'SF Mono', Consolas, 'Courier New', monospace; font-size: 1.05rem;
  outline: none; background: var(--m-alt); color: var(--m-text); box-sizing: border-box;
}
.m-expr:focus { border-color: var(--m-blue); }

.m-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 14px; }
.m-field { display: flex; flex-direction: column; }
.m-field input, .m-field select {
  width: 100%; padding: 10px 12px; border: 1.5px solid var(--m-border); border-radius: 8px;
  font-size: .92rem; font-family: inherit; outline: none; background: var(--m-bg);
  color: var(--m-text); box-sizing: border-box;
}
.m-field input:focus, .m-field select:focus { border-color: var(--m-blue); }

.m-inline { display: flex; align-items: center; border: 1.5px solid var(--m-border); border-radius: 8px; overflow: hidden; background: var(--m-bg); }
.m-inline:focus-within { border-color: var(--m-blue); }
.m-inline input { flex: 1; padding: 10px 12px; border: none; font-size: .92rem; font-family: inherit; outline: none; background: transparent; color: var(--m-text); width: 0; min-width: 0; }
.m-suffix { padding: 10px 12px; background: var(--m-alt); font-size: .78rem; font-weight: 700; color: var(--m-muted); border-left: 1px solid var(--m-border); }

.m-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 13px; align-items: center; }
.m-chips-label { font-size: .74rem; color: var(--m-muted); }
.m-chip {
  padding: 5px 12px; border: 1.5px solid var(--m-border); border-radius: 20px; font-size: .76rem;
  font-weight: 600; cursor: pointer; background: var(--m-bg); color: var(--m-muted); font-family: inherit;
}
.m-chip:hover { border-color: var(--m-blue); color: var(--m-blue); }

.m-tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.m-tab {
  flex: 1; min-width: 96px; padding: 10px; border: 1.5px solid var(--m-border); border-radius: 8px;
  font-size: .84rem; font-weight: 700; cursor: pointer; font-family: inherit; background: var(--m-bg);
  text-align: center; color: var(--m-text); transition: all .15s;
}
.m-tab.active { background: var(--m-blue); color: #fff; border-color: var(--m-blue); }

.m-result {
  background: linear-gradient(135deg, var(--m-blue), var(--m-blue-dark));
  border-radius: 14px; padding: 24px 22px; color: #fff;
}
.m-result-label { font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; opacity: .82; margin-bottom: 8px; }
.m-result-val {
  font-size: 1.5rem; font-weight: 800; line-height: 1.4; word-break: break-word;
  font-family: 'SF Mono', Consolas, monospace;
}
.m-result-sub { font-size: .84rem; opacity: .88; margin-top: 8px; }

.m-steps { display: flex; flex-direction: column; gap: 10px; }
.m-step { padding: 12px 15px; border: 1.5px solid var(--m-border); border-radius: 9px; background: var(--m-bg); }
.m-step-expr { font-family: 'SF Mono', Consolas, monospace; font-size: .88rem; font-weight: 700; color: var(--m-text); word-break: break-word; }
.m-step-rule { font-size: .78rem; color: var(--m-muted); margin: 5px 0; }
.m-step-out { font-family: 'SF Mono', Consolas, monospace; font-size: .88rem; color: var(--m-blue); font-weight: 700; word-break: break-word; }

.m-grid { display: flex; flex-direction: column; gap: 1px; background: var(--m-border); border-radius: 10px; overflow: hidden; border: 1.5px solid var(--m-border); }
.m-gridrow { display: flex; justify-content: space-between; gap: 10px; padding: 11px 14px; background: var(--m-bg); font-size: .84rem; }
.m-gridrow span:last-child { font-weight: 700; text-align: right; font-family: 'SF Mono', Consolas, monospace; }

.m-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; }
.m-stat { padding: 14px 10px; background: var(--m-alt); border-radius: 10px; text-align: center; }
.m-stat-val { font-size: 1.4rem; font-weight: 800; color: var(--m-blue); line-height: 1.1; word-break: break-word; }
.m-stat-lbl { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--m-muted); margin-top: 5px; }

.m-error { margin-top: 12px; padding: 11px 14px; border-radius: 8px; background: #fce8e6; color: var(--m-red); font-size: .84rem; font-weight: 600; }
.m-note { margin-top: 12px; padding: 11px 14px; border-radius: 8px; background: #fef7e0; color: var(--m-amber); font-size: .82rem; font-weight: 600; }
.m-ok { margin-top: 12px; padding: 11px 14px; border-radius: 8px; background: #e6f4ea; color: var(--m-green); font-size: .82rem; font-weight: 600; }

.m-help {
  font-size: .78rem; color: var(--m-muted); line-height: 1.65;
  background: var(--m-alt); padding: 13px 15px; border-radius: 9px;
}
.m-help code { font-family: 'SF Mono', Consolas, monospace; background: #fff; padding: 1px 5px; border-radius: 4px; border: 1px solid var(--m-border); }

canvas { width: 100%; height: auto; display: block; border: 1.5px solid var(--m-border); border-radius: 10px; background: #fff; }

.m-legend { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 11px; }
.m-key { display: flex; align-items: center; gap: 7px; font-size: .78rem; font-weight: 600; color: var(--m-muted); }
.m-key i { width: 14px; height: 3.5px; border-radius: 2px; display: inline-block; }

.m-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.m-table th { text-align: left; padding: 9px 11px; background: var(--m-alt); font-size: .67rem; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; color: var(--m-muted); border-bottom: 1px solid var(--m-border); }
.m-table td { padding: 9px 11px; border-bottom: 1px solid var(--m-border); font-family: 'SF Mono', Consolas, monospace; }
.m-table tr:last-child td { border-bottom: none; }
.m-scroll { overflow-x: auto; border: 1.5px solid var(--m-border); border-radius: 10px; }

.m-shapes { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 8px; margin-bottom: 18px; }
.m-shape { padding: 12px 6px; border: 1.5px solid var(--m-border); border-radius: 9px; background: var(--m-bg); cursor: pointer; font-family: inherit; text-align: center; color: var(--m-text); transition: all .15s; }
.m-shape:hover { border-color: var(--m-blue); }
.m-shape.active { background: var(--m-blue); color: #fff; border-color: var(--m-blue); }
.m-shape-svg { display: block; margin: 0 auto 5px; }
.m-shape-name { font-size: .68rem; font-weight: 700; }

.m-formula { font-family: 'SF Mono', Consolas, monospace; font-size: .82rem; color: var(--m-muted); text-align: center; padding: 10px; background: var(--m-alt); border-radius: 8px; margin-top: 12px; }

@media (max-width: 560px) {
  .m-card { padding: 17px; }
  .m-result { padding: 19px 16px; }
  .m-result-val { font-size: 1.18rem; }
}