/* ============================================================
   Unit Converter — tool-specific styles on base.css.
   No :root / theme; consumes base tokens only.
   ============================================================ */

.uc-tool { background: var(--bg); transition: background 0.5s; }
.uc-tool .tool-instructions-wrapper { text-align: center; margin-bottom: 24px; }
.uc-tool .tool-section-title {
    font-family: var(--font-head); font-weight: 800;
    font-size: clamp(1.6rem, 4vw, 2.4rem); color: var(--text);
    margin: 0 0 12px; letter-spacing: -0.3px;
}
.uc-tool .text-primary-red { color: var(--accent-2); }
.uc-tool .tool-section-texte {
    color: var(--text-muted); font-size: 0.95rem; line-height: 1.7;
    max-width: 720px; margin: 0 auto;
}

.uc-panel {
    background: var(--panel-bg); border: 1px solid var(--panel-border);
    border-radius: var(--radius); box-shadow: var(--shadow-soft);
    padding: 22px; max-width: 760px; margin: 0 auto;
}

/* Category tabs */
.uc-tabs {
    display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 22px;
}
.uc-tab {
    padding: 10px 18px; background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 999px; color: var(--text); font-family: var(--font-head);
    font-size: 0.9rem; font-weight: 700; cursor: pointer; transition: var(--transition);
}
.uc-tab:hover { border-color: var(--accent-2); transform: translateY(-2px); }
.uc-tab.uc-active {
    background: var(--accent); border-color: var(--accent); color: #fff;
    box-shadow: 0 4px 14px rgba(231,76,60,0.3);
}

/* Convert row */
.uc-convert {
    display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: end;
}
@media (max-width: 620px) {
    .uc-convert { grid-template-columns: 1fr; }
    .uc-swap { justify-self: center; transform: rotate(90deg); }
}
.uc-side { display: flex; flex-direction: column; gap: 8px; }

.uc-input, .uc-select {
    width: 100%; box-sizing: border-box; 
    background: var(--card-bg); color: var(--text);
    border: 1.5px solid var(--border-color); border-radius: var(--radius-sm);
    font-family: var(--font-head); font-size: 1.05rem; font-weight: 600;
    position: relative;
}

body.dark-mode-spinumbers .uc-select,
body.dark-mode .uc-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a855f7' d='M6 9L1 4h10z'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 14px center !important;
}

.uc-input:focus, .uc-select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(231,76,60,0.15); }
.uc-input--out { background: var(--panel-bg); color: var(--accent-2); font-weight: 800; font-family: var(--font-mono); }
.uc-select { cursor: pointer; }

/* Swap button */
.uc-swap {
    width: 46px; height: 46px; border-radius: 50%;
    background: var(--card-bg); border: 1px solid var(--border-color); color: var(--text);
    display: flex; align-items: center; justify-content: center; cursor: pointer;
    transition: var(--transition); margin-bottom: 2px;
}
.uc-swap:hover { background: var(--purple); border-color: var(--purple); color: #fff; transform: rotate(180deg); }

/* Formula line */
.uc-formula {
    text-align: center; margin: 20px 0 0; padding-top: 16px;
    border-top: 1px solid var(--panel-border);
    color: var(--text); font-size: 1.05rem; font-weight: 700; min-height: 1.3em;
}