@charset "UTF-8";

#tool-rpm-calculator,
#tool-rpm-calculator * {
    box-sizing: border-box;
}

#tool-rpm-calculator {
    --rpm-bg: #faf9f7;
    --rpm-surface: #ffffff;
    --rpm-border: #e8e4dc;
    --rpm-border-strong: #d8d1c6;
    --rpm-text: #2d2a26;
    --rpm-muted: #665f57;
    --rpm-accent: #d4af37;
    --rpm-accent-strong: #b8860b;
    --rpm-accent-soft: #fdfbf5;
    --rpm-accent-mid: #eadfb8;
    --rpm-warn: #c2410c;
    --rpm-warn-soft: #fff5ed;
    --rpm-green: #4f9f70;
    --rpm-mono: 'Courier New', Courier, monospace;
    --rpm-shadow: 0 1px 4px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.04);
    display: grid;
    gap: 18px;
    padding: 24px;
    border: 1px solid #eee7dc;
    border-radius: 18px;
    background: var(--rpm-bg);
    color: var(--rpm-text);
}

#tool-rpm-calculator .rpm-hidden {
    display: none !important;
}

#tool-rpm-calculator.rpm-tool {
    width: 100%;
}

#tool-rpm-calculator .rpm-guide-card,
#tool-rpm-calculator .rpm-formula-card,
#tool-rpm-calculator .rpm-table-card {
    align-self: stretch;
}

#tool-rpm-calculator .rpm-tool-intro {
    display: grid;
    gap: 10px;
}

#tool-rpm-calculator .rpm-title-wrap {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 10px 14px;
}

#tool-rpm-calculator .rpm-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 5px 10px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 999px;
    background: var(--rpm-accent-soft);
    color: var(--rpm-accent-strong);
    font-size: 15px;
    font-weight: 800;
}

#tool-rpm-calculator .tool-section-title {
    margin: 0;
    color: var(--rpm-text);
    letter-spacing: -0.03em;
}

#tool-rpm-calculator .rpm-tool-lead {
    max-width: 920px;
    margin: 0;
    color: var(--rpm-muted);
    font-size: 17px;
    line-height: 1.72;
}

#tool-rpm-calculator .rpm-main-layout {
    display: grid;
    grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.1fr);
    gap: 16px;
    align-items: start;
}

#tool-rpm-calculator .rpm-input-col,
#tool-rpm-calculator .rpm-result-col {
    display: grid;
    gap: 12px;
    min-width: 0;
}

#tool-rpm-calculator .rpm-card,
#tool-rpm-calculator .rpm-main-result,
#tool-rpm-calculator .rpm-summary-card,
#tool-rpm-calculator .rpm-warning,
#tool-rpm-calculator .rpm-note-box {
    min-width: 0;
    border: 1px solid var(--rpm-border);
    border-radius: 14px;
    background: var(--rpm-surface);
    box-shadow: var(--rpm-shadow);
}

#tool-rpm-calculator .rpm-card {
    display: grid;
    gap: 14px;
    padding: 16px;
}

#tool-rpm-calculator .rpm-input-card {
    border-color: rgba(212, 175, 55, 0.28);
}

#tool-rpm-calculator .rpm-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    min-width: 0;
}

#tool-rpm-calculator .rpm-card-head h3 {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin: 0;
    color: var(--rpm-text);
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.01em;
}

#tool-rpm-calculator .rpm-card-head i {
    color: var(--rpm-accent-strong);
}

#tool-rpm-calculator .rpm-head-note {
    flex: 0 0 auto;
    color: var(--rpm-muted);
    font-family: var(--rpm-mono);
    font-size: 14px;
    font-weight: 700;
}

#tool-rpm-calculator .rpm-mode-group,
#tool-rpm-calculator .rpm-preset-group,
#tool-rpm-calculator .rpm-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-width: 0;
}

#tool-rpm-calculator .rpm-mode-chip,
#tool-rpm-calculator .rpm-preset-chip,
#tool-rpm-calculator .rpm-copy-btn,
#tool-rpm-calculator .rpm-reset-btn {
    min-height: 40px;
    border: 1px solid var(--rpm-border-strong);
    border-radius: 999px;
    background: #fff;
    color: var(--rpm-text);
    font-size: 14px;
    font-weight: 800;
    line-height: 1.3;
    cursor: pointer;
    transition: border-color 0.16s ease, background-color 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

#tool-rpm-calculator .rpm-mode-chip,
#tool-rpm-calculator .rpm-preset-chip {
    padding: 8px 11px;
}

#tool-rpm-calculator .rpm-mode-chip:hover,
#tool-rpm-calculator .rpm-preset-chip:hover,
#tool-rpm-calculator .rpm-copy-btn:hover,
#tool-rpm-calculator .rpm-reset-btn:hover {
    border-color: var(--rpm-accent);
    transform: translateY(-1px);
}

#tool-rpm-calculator .rpm-mode-chip.is-active,
#tool-rpm-calculator .rpm-preset-chip.is-active {
    border-color: rgba(212, 175, 55, 0.55);
    background: linear-gradient(135deg, #fff8e4 0%, #f3e6bd 100%);
    color: var(--rpm-accent-strong);
}

#tool-rpm-calculator .rpm-input-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

#tool-rpm-calculator .rpm-input-group,
#tool-rpm-calculator .rpm-preset-zone {
    display: grid;
    gap: 7px;
    min-width: 0;
}

#tool-rpm-calculator .rpm-input-group {
    padding: 10px;
    border: 1px solid rgba(212, 175, 55, 0.18);
    border-radius: 12px;
    background: #fffdf8;
}

#tool-rpm-calculator .rpm-input-group label,
#tool-rpm-calculator .rpm-chip-label,
#tool-rpm-calculator .rpm-summary-label,
#tool-rpm-calculator .rpm-result-topline,
#tool-rpm-calculator .rpm-formula-grid span {
    color: var(--rpm-muted);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.03em;
}

#tool-rpm-calculator .rpm-input-row,
#tool-rpm-calculator .rpm-unit-input {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 86px;
    gap: 8px;
    min-width: 0;
    align-items: center;
}

#tool-rpm-calculator .rpm-unit-input {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0;
    border: 1px solid var(--rpm-border-strong);
    border-radius: 10px;
    background: #fff;
    transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

#tool-rpm-calculator .rpm-unit-input:focus-within {
    border-color: var(--rpm-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.10);
}

#tool-rpm-calculator .rpm-unit-input span {
    padding-right: 10px;
    color: var(--rpm-muted);
    font-size: 14px;
    font-weight: 800;
    white-space: nowrap;
}

#tool-rpm-calculator .rpm-input,
#tool-rpm-calculator .rpm-unit-select {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 42px;
    border: 1px solid var(--rpm-border-strong);
    border-radius: 10px;
    background: #fff;
    color: var(--rpm-text);
    font-size: 16px;
    line-height: 1.4;
    transition: border-color 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

#tool-rpm-calculator .rpm-input {
    padding: 10px 11px;
    font-family: var(--rpm-mono);
    font-weight: 700;
}

#tool-rpm-calculator .rpm-unit-input .rpm-input {
    border: 0;
    border-radius: 10px 0 0 10px;
    background: transparent;
}

#tool-rpm-calculator .rpm-unit-select {
    padding: 10px 8px;
    font-weight: 700;
}

#tool-rpm-calculator .rpm-input:hover,
#tool-rpm-calculator .rpm-unit-select:hover {
    border-color: var(--rpm-accent-mid);
}

#tool-rpm-calculator .rpm-input:focus,
#tool-rpm-calculator .rpm-unit-select:focus {
    outline: none;
    border-color: var(--rpm-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.10);
}

#tool-rpm-calculator .rpm-unit-input .rpm-input:focus {
    box-shadow: none;
}

#tool-rpm-calculator .rpm-input[aria-invalid="true"] {
    border-color: var(--rpm-warn);
    background: var(--rpm-warn-soft);
}

#tool-rpm-calculator .rpm-input-help {
    margin: 0;
    color: var(--rpm-muted);
    font-size: 13px;
    line-height: 1.55;
}

#tool-rpm-calculator .rpm-copy-btn,
#tool-rpm-calculator .rpm-reset-btn {
    display: inline-flex;
    flex: 1 1 160px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 14px;
}

#tool-rpm-calculator .rpm-copy-btn {
    border-color: rgba(212, 175, 55, 0.52);
    background: #fff8e4;
    color: var(--rpm-accent-strong);
}

#tool-rpm-calculator .rpm-copy-btn.is-copied {
    border-color: rgba(79, 159, 112, 0.42);
    background: #f2faf4;
    color: var(--rpm-green);
}

#tool-rpm-calculator .rpm-guide-list {
    display: grid;
    gap: 7px;
    margin: 0;
    padding-left: 18px;
    color: var(--rpm-muted);
    font-size: 14px;
    line-height: 1.65;
}

#tool-rpm-calculator .rpm-warning {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    border-color: rgba(194, 65, 12, 0.26);
    background: var(--rpm-warn-soft);
    color: var(--rpm-warn);
    font-weight: 800;
}

#tool-rpm-calculator .rpm-main-result {
    display: grid;
    gap: 10px;
    padding: 18px;
    border-color: rgba(212, 175, 55, 0.34);
    background: linear-gradient(135deg, #fffaf0 0%, #f6edcf 100%);
}

#tool-rpm-calculator .rpm-main-result h3 {
    margin: 0;
    color: var(--rpm-text);
    font-size: 19px;
    font-weight: 900;
    letter-spacing: -0.02em;
}

#tool-rpm-calculator .rpm-result-value {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
    color: var(--rpm-accent-strong);
    font-family: var(--rpm-mono);
    font-weight: 900;
    line-height: 1;
}

#tool-rpm-calculator .rpm-result-value span:first-child {
    font-size: clamp(34px, 6vw, 54px);
    letter-spacing: -0.06em;
}

#tool-rpm-calculator .rpm-result-value span:last-child {
    font-size: 18px;
}

#tool-rpm-calculator .rpm-result-lead {
    margin: 0;
    color: var(--rpm-muted);
    font-size: 15px;
    line-height: 1.65;
}

#tool-rpm-calculator .rpm-result-mini {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

#tool-rpm-calculator .rpm-result-mini span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 9px;
    border: 1px solid rgba(212, 175, 55, 0.24);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
    color: var(--rpm-muted);
    font-size: 13px;
    font-weight: 800;
}

#tool-rpm-calculator .rpm-result-mini strong,
#tool-rpm-calculator .rpm-summary-value,
#tool-rpm-calculator .rpm-table td,
#tool-rpm-calculator .rpm-formula-grid code {
    font-family: var(--rpm-mono);
}

#tool-rpm-calculator .rpm-summary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

#tool-rpm-calculator .rpm-summary-card {
    display: grid;
    gap: 5px;
    padding: 14px;
}

#tool-rpm-calculator .rpm-summary-value {
    color: var(--rpm-text);
    font-size: 20px;
    line-height: 1.2;
}

#tool-rpm-calculator .rpm-summary-card p {
    margin: 0;
    color: var(--rpm-muted);
    font-size: 13px;
    line-height: 1.45;
}

#tool-rpm-calculator .rpm-formula-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 10px;
}

#tool-rpm-calculator .rpm-formula-grid div {
    display: grid;
    gap: 5px;
    min-width: 0;
    padding: 12px;
    border: 1px solid var(--rpm-border);
    border-radius: 12px;
    background: var(--rpm-accent-soft);
}

#tool-rpm-calculator .rpm-formula-grid code {
    color: var(--rpm-accent-strong);
    font-size: 14px;
    font-weight: 800;
    white-space: normal;
    overflow-wrap: anywhere;
}

#tool-rpm-calculator .rpm-table-wrap {
    max-width: 100%;
    overflow-x: auto;
}

#tool-rpm-calculator .rpm-table {
    width: 100%;
    min-width: 0;
    border-collapse: collapse;
    table-layout: fixed;
}

#tool-rpm-calculator .rpm-table th,
#tool-rpm-calculator .rpm-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--rpm-border);
    text-align: left;
    vertical-align: top;
    overflow-wrap: anywhere;
}

#tool-rpm-calculator .rpm-table tr:last-child th,
#tool-rpm-calculator .rpm-table tr:last-child td {
    border-bottom: 0;
}

#tool-rpm-calculator .rpm-table th {
    width: 28%;
    color: var(--rpm-muted);
    font-size: 13px;
    font-weight: 900;
}

#tool-rpm-calculator .rpm-table td {
    color: var(--rpm-text);
    font-size: 14px;
    font-weight: 700;
}

#tool-rpm-calculator .rpm-note-box {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
    padding: 14px;
    background: #fffdf8;
}

#tool-rpm-calculator .rpm-note-box i {
    color: var(--rpm-accent-strong);
    font-size: 18px;
}

#tool-rpm-calculator .rpm-note-box p {
    margin: 0;
    color: var(--rpm-muted);
    font-size: 14px;
    line-height: 1.65;
}

@media (max-width: 1080px) {
    #tool-rpm-calculator {
        padding: 18px;
    }

    #tool-rpm-calculator .rpm-main-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    #tool-rpm-calculator {
        padding: 14px;
        border-radius: 14px;
    }

    #tool-rpm-calculator .rpm-input-grid,
    #tool-rpm-calculator .rpm-summary-grid,
    #tool-rpm-calculator .rpm-formula-grid {
        grid-template-columns: 1fr;
    }

    #tool-rpm-calculator .rpm-card-head {
        align-items: start;
        flex-direction: column;
    }

    #tool-rpm-calculator .rpm-mode-chip,
    #tool-rpm-calculator .rpm-preset-chip {
        flex: 1 1 100%;
    }

    #tool-rpm-calculator .rpm-result-value span:first-child {
        font-size: 36px;
    }

    #tool-rpm-calculator .rpm-table th,
    #tool-rpm-calculator .rpm-table td {
        padding: 9px 6px;
        font-size: 13px;
    }
}

@media (max-width: 420px) {
    #tool-rpm-calculator .rpm-input-row {
        grid-template-columns: minmax(0, 1fr) 86px;
        gap: 6px;
    }

    #tool-rpm-calculator .rpm-unit-select {
        padding-left: 6px;
        padding-right: 6px;
        font-size: 14px;
    }

    #tool-rpm-calculator .rpm-table th {
        width: 32%;
    }
}