/* Molarity Calculator — style.css v1.0 */
.molar-wrap { max-width:600px; margin:0 auto; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif; color:#1a1a1a; }
.molar-header { display:flex; align-items:center; gap:12px; margin-bottom:20px; }
.molar-icon { font-size:30px; line-height:1; color:#0891B2; }
.molar-title { font-size:22px !important; font-weight:600 !important; margin:0 0 3px !important; padding:0 !important; border:none !important; color:#1a1a1a !important; }
.molar-sub { font-size:13px; color:#666; margin:0; }
.molar-tabs { display:flex; gap:7px; margin-bottom:20px; flex-wrap:wrap; }
.molar-tab { flex:1 1 auto; min-width:110px; padding:10px 8px; font-size:12.5px; font-weight:500; border:1px solid #d8d8d8; border-radius:10px; background:#fff; color:#555; cursor:pointer; transition:background .13s,color .13s,border-color .13s; display:flex; flex-direction:column; align-items:center; gap:3px; text-align:center; }
.molar-tab:hover:not(.act) { background:#ecfeff; }
.molar-tab.act { background:#cffafe; color:#0e7490; border-color:#67e8f9; }
.molar-tab span:first-child { font-size:16px; }
.molar-tab-sub { font-size:11px; font-weight:400; opacity:.7; }
.molar-panel { display:none; }
.molar-panel.act { display:block; }
.molar-section-lbl { font-size:11px; font-weight:700; color:#999; text-transform:uppercase; letter-spacing:.6px; margin-bottom:10px; }
.molar-grid { display:grid; grid-template-columns:1fr 1fr 1fr; gap:14px; margin-bottom:4px; }
@media(max-width:500px){ .molar-grid { grid-template-columns:1fr; } }
.molar-lbl { display:block; font-size:13px; font-weight:500; color:#555; margin-bottom:5px; }
.molar-iw { position:relative; }
.molar-iw input[type="number"],.molar-formula-input { width:100%; box-sizing:border-box; padding:9px 50px 9px 10px; border:1px solid #d0d0d0; border-radius:8px; font-size:14px; color:#1a1a1a; background:#fff; outline:none; transition:border-color .15s; -moz-appearance:textfield; font-family:inherit; }
.molar-formula-input { padding:9px 12px; font-size:16px; font-weight:600; font-family:monospace; letter-spacing:1px; }
.molar-iw input::-webkit-inner-spin-button,.molar-iw input::-webkit-outer-spin-button { -webkit-appearance:none; }
.molar-iw input:focus,.molar-formula-input:focus { border-color:#0891B2; box-shadow:0 0 0 3px rgba(8,145,178,.1); }
.molar-suf { position:absolute; right:8px; top:50%; transform:translateY(-50%); font-size:11px; color:#888; pointer-events:none; white-space:nowrap; }
.molar-row-iw { display:flex; gap:7px; }
.molar-iw-grow { flex:2; }
.molar-unit-iw { flex:1.2; }
.molar-iw select { width:100%; box-sizing:border-box; padding:9px 8px; border:1px solid #d0d0d0; border-radius:8px; font-size:13px; color:#1a1a1a; background:#fff; outline:none; transition:border-color .15s; appearance:none; -webkit-appearance:none; cursor:pointer; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 6px center; }

/* Dilution layout */
.molar-dilution-grid { display:flex; align-items:flex-start; gap:16px; margin-bottom:4px; }
@media(max-width:480px){ .molar-dilution-grid { flex-direction:column; } }
.molar-dilution-col { flex:1; background:#f8fdff; border:1px solid #cffafe; border-radius:10px; padding:12px 14px; }
.molar-dilution-label { font-size:12px; font-weight:700; color:#0e7490; text-transform:uppercase; letter-spacing:.4px; margin-bottom:10px; }
.molar-dilution-eq { font-size:28px; font-weight:700; color:#0891B2; padding-top:56px; flex-shrink:0; }
@media(max-width:480px){ .molar-dilution-eq { padding-top:0; text-align:center; } }

/* Quick formula buttons */
.molar-quick-formulas { display:flex; align-items:center; gap:7px; flex-wrap:wrap; margin:10px 0 4px; }
.molar-quick-lbl { font-size:12px; color:#888; }
.molar-quick-btn { padding:5px 10px; font-size:13px; font-family:monospace; border:1px solid #d0d0d0; border-radius:7px; background:#fff; color:#0e7490; cursor:pointer; transition:background .13s; }
.molar-quick-btn:hover { background:#cffafe; border-color:#67e8f9; }

/* Result card */
.molar-result-card { background:linear-gradient(135deg,#0891B2,#0e7490); border-radius:12px; padding:18px 22px; color:#fff; margin-top:14px; margin-bottom:4px; animation:molar-in .22s ease; }
@keyframes molar-in { from{opacity:0;transform:translateY(5px)} to{opacity:1;transform:translateY(0)} }
.molar-res-main { font-size:32px; font-weight:700; font-family:monospace; text-align:center; margin-bottom:4px; }
.molar-res-unit { font-size:14px; opacity:.8; text-align:center; margin-bottom:6px; }
.molar-res-formula { font-size:12px; opacity:.65; text-align:center; margin-bottom:8px; }
.molar-res-extras { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; border-top:1px solid rgba(255,255,255,.2); padding-top:10px; }
.molar-res-extra { text-align:center; }
.molar-res-extra-val { font-size:14px; font-weight:600; font-family:monospace; }
.molar-res-extra-lbl { font-size:11px; opacity:.65; margin-top:2px; }

/* Molar mass breakdown */
.molar-mm-card { background:#f0fdff; border:1px solid #67e8f9; border-radius:11px; padding:14px 16px; margin-top:14px; }
.molar-mm-formula-display { font-size:28px; font-weight:700; font-family:monospace; color:#0e7490; text-align:center; margin-bottom:8px; }
.molar-mm-val { font-size:36px; font-weight:700; color:#0891B2; text-align:center; margin-bottom:4px; }
.molar-mm-unit { text-align:center; color:#0e7490; font-size:14px; margin-bottom:12px; }
.molar-mm-breakdown { }
table.molar-mm-table { width:100%; border-collapse:collapse; font-size:13px; }
table.molar-mm-table th { padding:6px 10px; text-align:left; color:#888; font-size:11px; text-transform:uppercase; letter-spacing:.4px; border-bottom:1px solid #cffafe; background:#f0fdff; }
table.molar-mm-table th:last-child { text-align:right; }
table.molar-mm-table td { padding:7px 10px; border-bottom:1px solid #e0faff; font-size:13px; }
table.molar-mm-table td:last-child { text-align:right; font-weight:600; font-family:monospace; }
table.molar-mm-table tr:last-child td { border-bottom:none; font-weight:700; background:#e0faff; }

/* Error */
.molar-error { background:#fee2e2; border:1px solid #fca5a5; border-radius:8px; padding:10px 14px; font-size:13px; color:#991b1b; margin-top:10px; }

.molar-reset-btn { display:block; width:100%; margin-top:10px; padding:9px; font-size:13px; color:#999; background:none; border:1px solid #e8e8e8; border-radius:8px; cursor:pointer; transition:background .13s; }
.molar-reset-btn:hover { background:#f5f5f5; color:#333; }
.molar-disclaimer { font-size:11px; color:#bbb; text-align:center; margin-top:6px; }