.hero {
position: relative;
padding-block: clamp(2.25rem, 1.6rem + 3.5vw, 4rem) clamp(3rem, 2rem + 4vw, 5rem);
overflow: hidden;
}
.hero::before {
content: "";
position: absolute;
inset: 0;
background-image:
linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
background-size: 40px 40px;
mask-image: radial-gradient(circle at 50% 15%, #000 0%, transparent 68%);
-webkit-mask-image: radial-gradient(circle at 50% 15%, #000 0%, transparent 68%);
pointer-events: none;
}
.hero__inner { position: relative; max-width: 1020px; margin-inline: auto; text-align: center; }
.hero__title { font-size: var(--fs-hero); color: #fff; margin-bottom: 1rem; }
.hero__lead { color: var(--text-on-dark); font-size: var(--fs-lead); max-width: 62ch; margin-inline: auto; }
.hero__actions { display: flex; gap: 0.9rem; flex-wrap: wrap; }
.calc {
margin-top: clamp(1.75rem, 1.2rem + 2vw, 2.75rem);
background: var(--bg-surface);
border-radius: var(--radius-lg);
box-shadow: 0 36px 70px rgba(10, 12, 16, 0.42), var(--shadow-lg);
text-align: left;
overflow: hidden;
border: 1px solid rgba(255,255,255,0.10);
}
.calc__bar {
display: flex;
align-items: center;
gap: 0.75rem;
padding: 0.7rem 1.1rem;
background: var(--slate-100);
border-bottom: 1px solid var(--border);
}
.calc__dots { display: inline-flex; gap: 6px; flex: none; }
.calc__dots i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.calc__dots i:nth-child(1) { background: #FF5F57; }
.calc__dots i:nth-child(2) { background: #FEBC2E; }
.calc__dots i:nth-child(3) { background: #28C840; }
.calc__bar-title {
font-family: var(--font-mono);
font-size: 0.8rem;
color: var(--text-muted);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.calc__shield {
margin-left: auto;
flex: none;
display: inline-flex;
align-items: center;
gap: 0.4rem;
font-size: 0.76rem;
font-weight: 600;
color: var(--rating-deep);
font-family: var(--font-mono);
white-space: nowrap;
}
.calc__shield svg { width: 15px; height: 15px; }
.calc__modes {
display: flex;
gap: 0.4rem;
padding: 0.9rem 1.1rem;
border-bottom: 1px solid var(--border);
overflow-x: auto;
scrollbar-width: thin;
-webkit-overflow-scrolling: touch;
}
.calc__modes::-webkit-scrollbar { height: 4px; }
.calc__modes::-webkit-scrollbar-thumb { background: var(--slate-200); border-radius: 4px; }
.calc__mode {
flex: none;
display: inline-flex;
align-items: center;
gap: 0.45rem;
padding: 0.6rem 1rem;
border: 1px solid var(--border);
background: var(--bg-surface);
border-radius: var(--radius-pill);
font-family: var(--font-display);
font-weight: 600;
font-size: 0.87rem;
color: var(--slate-700);
white-space: nowrap;
transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.calc__mode svg { width: 17px; height: 17px; flex: none; }
.calc__mode:hover { border-color: var(--red); color: var(--red-press); background: var(--red-soft); }
.calc__mode[aria-selected="true"] {
background: var(--red-deep);
color: #fff;
border-color: var(--red-deep);
box-shadow: var(--shadow-red);
}
.calc__body {
display: grid;
grid-template-columns: 1.02fr 0.98fr;
align-items: stretch;
}
.calc__pane { padding: clamp(1.25rem, 1rem + 1.4vw, 1.9rem); min-width: 0; }
.calc__result-wrap {
padding: clamp(1.25rem, 1rem + 1.4vw, 1.9rem);
background: linear-gradient(165deg, var(--red-soft) 0%, #fff 62%);
border-left: 1px solid var(--border);
display: flex;
flex-direction: column;
min-width: 0;
}
.calc__panel-title {
font-family: var(--font-mono);
font-size: 0.74rem;
font-weight: 600;
letter-spacing: 0.08em;
text-transform: uppercase;
color: var(--text-muted);
margin-bottom: 1.15rem;
display: flex;
align-items: center;
gap: 0.5rem;
}
.calc__panel-title svg { width: 15px; height: 15px; color: var(--red-deep); flex: none; }
.calc__panel-title b { color: var(--ink); font-weight: 600; }
.field { margin-bottom: 1.1rem; }
.field:last-child { margin-bottom: 0; }
.field__label {
display: flex;
align-items: center;
gap: 0.45rem;
font-weight: 600;
font-size: 0.9rem;
color: var(--ink);
margin-bottom: 0.5rem;
}
.field__label svg { width: 17px; height: 17px; color: var(--red-deep); flex: none; }
.field__hint { display: block; margin-top: 0.4rem; font-size: 0.8rem; color: var(--text-muted); }
.field__err {
display: block;
margin-top: 0.35rem;
font-size: 0.8rem;
font-weight: 500;
color: var(--error);
}
.input-group {
display: flex;
border: 1px solid var(--border);
border-radius: var(--radius-sm);
background: var(--bg-surface);
overflow: hidden;
transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input-group:focus-within { border-color: var(--red); box-shadow: 0 0 0 3px rgba(255, 67, 53, 0.15); }
.input-group:has(input.is-error) { border-color: var(--error); }
.input-group:has(input.is-error):focus-within { box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.15); }
.input-group input.is-error { background: var(--error-soft); color: var(--error); }
.input-group input {
flex: 1 1 auto;
min-width: 0;
padding: 0.78rem 0.9rem;
border: none;
background: transparent;
font-size: 1.02rem;
font-weight: 500;
font-variant-numeric: tabular-nums;
color: var(--ink);
}
.input-group input:focus { outline: none; }
.input-group input::-webkit-outer-spin-button,
.input-group input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.input-group input[type="number"] { -moz-appearance: textfield; appearance: textfield; }
.input-group__unit {
display: inline-flex;
align-items: center;
padding: 0 0.9rem;
border-left: 1px solid var(--border);
background: var(--slate-100);
color: var(--text-muted);
font-family: var(--font-mono);
font-size: 0.86rem;
font-weight: 600;
white-space: nowrap;
flex: none;
}
.input-group__select { position: relative; display: flex; flex: none; }
.input-group__select select {
appearance: none;
-webkit-appearance: none;
border: none;
border-left: 1px solid var(--border);
background: var(--slate-100);
color: var(--ink);
font-family: var(--font-mono);
font-size: 0.86rem;
font-weight: 600;
padding: 0 2.1rem 0 0.9rem;
cursor: pointer;
transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.input-group__select select:hover { background: var(--red-soft); color: var(--red-press); }
.input-group__select select:focus { outline: none; }
.input-group__select select:focus-visible { outline: 2px solid var(--red); outline-offset: -2px; }
.input-group__caret {
position: absolute;
right: 0.7rem; top: 50%;
transform: translateY(-50%);
width: 15px; height: 15px;
color: var(--slate-500);
pointer-events: none;
}
.field--seg .field__label { margin-bottom: 0.55rem; }
.seg {
display: inline-flex;
padding: 3px;
gap: 3px;
background: var(--slate-100);
border: 1px solid var(--border);
border-radius: var(--radius-pill);
width: 100%;
}
.seg__btn {
flex: 1;
border: none;
background: transparent;
padding: 0.5rem 0.9rem;
border-radius: var(--radius-pill);
font-family: var(--font-display);
font-weight: 600;
font-size: 0.86rem;
color: var(--slate-500);
transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.seg__btn:hover { color: var(--ink); }
.seg__btn[aria-pressed="true"] {
background: var(--bg-surface);
color: var(--red-press);
box-shadow: var(--shadow-sm);
}
.calc__presets {
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 0.4rem;
margin-top: 1.35rem;
padding-top: 1.15rem;
border-top: 1px dashed var(--border);
}
.calc__presets-label {
font-family: var(--font-mono);
font-size: 0.72rem;
letter-spacing: 0.07em;
text-transform: uppercase;
color: var(--text-muted);
margin-right: 0.2rem;
width: 100%;
}
.preset {
border: 1px solid var(--border);
background: var(--bg-surface);
color: var(--slate-700);
border-radius: var(--radius-pill);
padding: 0.38rem 0.8rem;
font-size: 0.82rem;
font-weight: 500;
transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.preset:hover { background: var(--red-soft); border-color: var(--red); color: var(--red-press); }
.calc__actions { display: flex; gap: 0.6rem; margin-top: 1.35rem; flex-wrap: wrap; }
.calc__actions .btn { flex: 1 1 auto; }
.calc__error {
margin-top: 0.9rem;
padding: 0.7rem 0.9rem;
border-radius: var(--radius-sm);
background: var(--error-soft);
border: 1px solid var(--error-border);
color: var(--error);
font-size: 0.86rem;
display: flex;
align-items: flex-start;
gap: 0.5rem;
}
.calc__error svg { width: 17px; height: 17px; flex: none; margin-top: 2px; }
.result { flex: 1; }
.result__label {
font-family: var(--font-mono);
font-size: 0.74rem;
letter-spacing: 0.07em;
text-transform: uppercase;
color: var(--text-muted);
margin-bottom: 0.4rem;
}
.result__value {
font-family: var(--font-display);
font-weight: 700;
font-size: clamp(2.3rem, 1.7rem + 2.8vw, 3.3rem);
line-height: 1;
color: var(--ink);
letter-spacing: -0.035em;
font-variant-numeric: tabular-nums;
display: flex;
align-items: baseline;
gap: 0.35rem;
flex-wrap: wrap;
word-break: break-word;
}
.result__value.is-live { color: var(--rating-deep); }
.result__unit { font-size: 0.36em; color: var(--text-muted); font-family: var(--font-mono); font-weight: 600; letter-spacing: 0; }
.result__equation {
margin-top: 0.9rem;
font-family: var(--font-mono);
font-size: 0.84rem;
line-height: 1.55;
color: var(--red-press);
background: rgba(255, 67, 53, 0.08);
border: 1px solid rgba(255, 67, 53, 0.16);
padding: 0.7rem 0.85rem;
border-radius: var(--radius-sm);
overflow-wrap: break-word;
}
.result__breakdown { margin-top: 1.1rem; display: flex; flex-direction: column; }
.result__row {
display: flex;
align-items: baseline;
justify-content: space-between;
gap: 1rem;
padding: 0.5rem 0;
border-bottom: 1px dashed var(--border);
font-size: 0.88rem;
}
.result__row:last-child { border-bottom: none; }
.result__row dt { color: var(--text-muted); }
.result__row dd {
margin: 0;
font-weight: 600;
color: var(--ink);
font-family: var(--font-mono);
font-variant-numeric: tabular-nums;
text-align: right;
white-space: nowrap;
}
.result__guide {
margin-top: 1.1rem;
padding: 0.9rem 1rem;
background: var(--slate-100);
border: 1px solid var(--border);
border-radius: var(--radius-md);
}
.result__guide-title {
display: flex;
align-items: center;
gap: 0.45rem;
font-family: var(--font-mono);
font-size: 0.72rem;
font-weight: 600;
letter-spacing: 0.07em;
text-transform: uppercase;
color: var(--slate-700);
margin-bottom: 0.7rem;
}
.result__guide-title svg { width: 15px; height: 15px; color: var(--rating-deep); flex: none; }
.result__guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
.result__guide-grid > div {
background: var(--bg-surface);
border: 1px solid var(--border);
border-radius: var(--radius-sm);
padding: 0.55rem 0.6rem;
min-width: 0;
}
.result__guide-grid span {
display: block;
font-size: 0.7rem;
color: var(--text-muted);
margin-bottom: 0.15rem;
}
.result__guide-grid b {
display: block;
font-family: var(--font-mono);
font-size: 0.86rem;
font-weight: 700;
color: var(--ink);
overflow-wrap: break-word;
}
.result__guide-note { margin-top: 0.65rem; font-size: 0.73rem; color: var(--text-muted); line-height: 1.5; }
.result__note { margin-top: 1rem; font-size: 0.8rem; color: var(--text-muted); line-height: 1.55; }
.result__empty { color: var(--text-muted); font-size: 0.93rem; margin-top: 0.7rem; }
.calc__result-actions {
display: flex;
gap: 0.5rem;
margin-top: 1.25rem;
padding-top: 1.1rem;
border-top: 1px solid var(--border);
flex-wrap: wrap;
}
.rbtn {
display: inline-flex;
align-items: center;
gap: 0.4rem;
padding: 0.5rem 0.85rem;
border: 1px solid var(--border);
background: var(--bg-surface);
border-radius: var(--radius-pill);
font-size: 0.83rem;
font-weight: 600;
font-family: var(--font-display);
color: var(--slate-700);
transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.rbtn svg { width: 15px; height: 15px; flex: none; }
.rbtn:hover { border-color: var(--red); color: var(--red-press); background: var(--red-soft); }
.calc__history {
padding: 1rem clamp(1.25rem, 1rem + 1.4vw, 1.9rem);
background: var(--slate-100);
border-top: 1px solid var(--border);
}
.calc__history-head {
display: flex;
align-items: center;
justify-content: space-between;
gap: 1rem;
margin-bottom: 0.7rem;
}
.calc__history-title {
display: inline-flex;
align-items: center;
gap: 0.45rem;
font-family: var(--font-mono);
font-size: 0.72rem;
font-weight: 600;
letter-spacing: 0.07em;
text-transform: uppercase;
color: var(--text-muted);
}
.calc__history-title svg { width: 15px; height: 15px; flex: none; }
.calc__history-clear {
display: inline-flex;
align-items: center;
gap: 0.3rem;
border: none;
background: none;
padding: 0.2rem 0.3rem;
font-size: 0.78rem;
font-weight: 600;
color: var(--text-muted);
border-radius: var(--radius-sm);
transition: color var(--dur) var(--ease);
}
.calc__history-clear svg { width: 14px; height: 14px; }
.calc__history-clear:hover { color: var(--error); }
.calc__history-list { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.hist {
display: inline-flex;
align-items: baseline;
gap: 0.45rem;
padding: 0.42rem 0.8rem;
border: 1px solid var(--border);
background: var(--bg-surface);
border-radius: var(--radius-pill);
transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.hist:hover { border-color: var(--red); background: var(--red-soft); }
.hist__mode { font-size: 0.78rem; color: var(--text-muted); }
.hist__val { font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700; color: var(--ink); }
.calc__footnote {
padding: 0.9rem clamp(1.25rem, 1rem + 1.4vw, 1.9rem);
background: var(--bg-surface);
border-top: 1px solid var(--border);
font-size: 0.78rem;
color: var(--text-muted);
line-height: 1.55;
margin: 0;
max-width: none;
}
.calc-chips {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
justify-content: center;
margin-top: 1.6rem;
}
.calc-chips span {
display: inline-flex;
align-items: center;
gap: 0.4rem;
padding: 0.38rem 0.8rem;
border-radius: var(--radius-pill);
background: rgba(255,255,255,0.08);
border: 1px solid rgba(255,255,255,0.16);
color: #fff;
font-size: 0.8rem;
font-family: var(--font-mono);
}
.calc-chips span svg { width: 14px; height: 14px; color: var(--rating-deep); flex: none; }