/* The Tired Generation: free sleep tools. Uses the palette variables from styles.css, so light and night modes both work. */
.tool-wrap { width: min(calc(100% - 40px), 900px); margin-inline: auto; }
.tool-hero h1 { font-size: clamp(2.3rem, 5.2vw, 4.1rem); }
.tool-section { padding: 40px 0 0; }
.tool-card { padding: clamp(20px, 4vw, 34px); border: 1px solid var(--line); border-radius: 26px; background: var(--surface); box-shadow: var(--shadow); }
.tool-card > h2 { font-size: 1.5rem; margin-bottom: 18px; }
.tool-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 18px; align-items: end; }
.tool-form .tool-span { grid-column: 1 / -1; }
.tool-field { display: grid; gap: 6px; min-width: 0; }
.tool-field label, .tool-legend { color: var(--ink); font-size: .9rem; font-weight: 850; }
.tool-field input, .tool-field select { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); color: var(--ink); font: inherit; font-size: 1rem; }
.tool-field input:focus-visible, .tool-field select:focus-visible, .tool-seg label:focus-within, .caf-remove:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; }
.tool-help { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.45; }
.tool-seg { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 0; padding: 0; border: 0; }
.tool-seg legend { padding: 0; margin-bottom: 7px; }
.tool-seg label { position: relative; display: flex; align-items: center; justify-content: center; min-height: 48px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); color: var(--ink); font-weight: 800; font-size: .95rem; text-align: center; cursor: pointer; }
.tool-seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.tool-seg label:has(input:checked) { border-color: var(--sun); background: var(--sun); color: var(--on-sun); }
.tool-inline { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.tool-check { display: flex; gap: 10px; align-items: flex-start; color: var(--ink); font-size: .92rem; line-height: 1.45; }
.tool-check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--coral-deep); flex: none; }
.tool-group { margin: 0; padding: 16px; border: 1px solid var(--line); border-radius: 17px; min-width: 0; }
.tool-group legend { padding: 0 7px; font-weight: 850; font-size: .95rem; color: var(--ink); }
.tool-group .tool-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.tool-btn-ghost { min-height: 44px; padding: 9px 15px; border: 1px dashed var(--line); border-radius: 999px; background: transparent; color: var(--coral-deep); font: inherit; font-weight: 850; cursor: pointer; }
.tool-btn-ghost:hover { border-style: solid; border-color: var(--sun); }

.tool-result { margin-top: 24px; padding: clamp(18px, 3.4vw, 28px); border: 1px solid rgba(244,185,49,.55); border-radius: 20px; background: rgba(244,185,49,.11); }
.tool-kicker { margin: 0 0 6px; color: var(--coral-deep); font-size: .75rem; line-height: 1.3; text-transform: uppercase; letter-spacing: .13em; font-weight: 900; }
.tool-big { margin: 0 0 8px; font-size: clamp(1.45rem, 3.6vw, 2.15rem); line-height: 1.18; letter-spacing: -.03em; font-weight: 700; color: var(--ink); }
.tool-big strong { font-weight: 900; white-space: nowrap; }
.tool-sub { margin: 0; color: var(--text-2); font-size: .98rem; line-height: 1.55; }
.tool-note { margin: 16px 0 0; color: var(--text-2); font-size: .9rem; line-height: 1.55; }
.tool-table { width: 100%; margin-top: 18px; border-collapse: collapse; font-size: .93rem; }
.tool-table caption { caption-side: top; text-align: left; margin-bottom: 6px; color: var(--muted); font-size: .82rem; line-height: 1.4; }
.tool-table th, .tool-table td { padding: 10px 8px 10px 0; border-top: 1px solid var(--line); text-align: left; vertical-align: middle; color: var(--ink); }
.tool-table th { font-weight: 900; white-space: nowrap; font-size: 1.02rem; }
.tool-table td:last-child { text-align: right; padding-right: 0; }
.tool-tag { display: inline-block; padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--text-2); font-size: .74rem; font-weight: 850; line-height: 1.25; }
.tool-tag-ok { border-color: transparent; background: var(--green); color: #fffdf8; }
.tool-tag-warn { border-color: transparent; background: var(--red); color: #fffdf8; }
.tool-cutoffs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.tool-cutoffs > div { padding: 13px 15px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }
.tool-cutoffs span { display: block; color: var(--muted); font-size: .8rem; line-height: 1.35; }
.tool-cutoffs strong { display: block; margin-top: 4px; font-size: 1.3rem; letter-spacing: -.03em; color: var(--ink); }
.tool-cta { display: flex; flex-wrap: wrap; gap: 14px 20px; align-items: center; justify-content: space-between; margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); }
.tool-cta p { margin: 0; flex: 1 1 300px; color: var(--text-2); font-size: .95rem; line-height: 1.5; }
.tool-cta strong { color: var(--ink); }
.tool-privacy { margin: 14px 0 0; color: var(--muted); font-size: .8rem; }

/* caffeine */
.caf-list { display: grid; gap: 10px; }
.caf-row { display: grid; grid-template-columns: minmax(0, 1fr) 130px 44px; gap: 10px; align-items: end; }
.caf-row:has(.caf-mg:not([hidden])) { grid-template-columns: minmax(0, 1fr) 92px 130px 44px; }
.caf-remove { width: 44px; height: 48px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); color: var(--muted); font-size: 1.35rem; line-height: 1; cursor: pointer; }
.caf-remove:hover { color: var(--red); border-color: var(--red); }
.tool-chart { margin: 18px 0 0; }
.tool-chart svg { display: block; width: 100%; height: auto; }
.tc-grid { stroke: var(--line); stroke-width: 1; }
.tc-axis { fill: var(--muted); font: 600 12px var(--sans); }
.tc-strong { fill: var(--ink); font-weight: 900; }
.tc-area { fill: var(--sun); opacity: .28; }
.tc-line { fill: none; stroke: var(--coral-deep); stroke-width: 2.5; stroke-linejoin: round; }
.tc-bed { stroke: var(--ink); stroke-width: 1.5; stroke-dasharray: 4 4; }
.tc-dot { fill: var(--coral-deep); stroke: var(--surface); stroke-width: 2; }

/* chronotype */
.ct-chart { margin-top: 20px; }
.ct-row { display: grid; grid-template-columns: 82px minmax(0, 1fr); gap: 4px 12px; align-items: center; margin-bottom: 12px; }
.ct-label { font-size: .84rem; font-weight: 850; color: var(--ink); }
.ct-track { position: relative; height: 30px; border-radius: 9px; background: var(--surface); border: 1px solid var(--line); overflow: hidden; }
.ct-bar { position: absolute; top: 0; bottom: 0; border-radius: 7px; }
.ct-bar-work { background: var(--green); }
.ct-bar-free { background: var(--coral-deep); }
html[data-theme="dark"] .ct-bar-work { background: var(--lavender); }
@media (prefers-color-scheme: dark) { html:not([data-theme="light"]) .ct-bar-work { background: var(--lavender); } }
.ct-mid { position: absolute; top: 0; bottom: 0; width: 3px; margin-left: -1.5px; background: var(--sun); box-shadow: 0 0 0 1px rgba(16,23,39,.55); }
.ct-times { grid-column: 2; color: var(--muted); font-size: .8rem; }
.ct-axis { display: flex; justify-content: space-between; margin-left: 94px; color: var(--muted); font-size: .72rem; font-weight: 700; }

/* sleep debt */
.sd-need-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.sd-need-row output { font-weight: 900; font-size: 1.1rem; color: var(--ink); }
.tool-field input[type="range"] { min-height: 34px; padding: 0; border: 0; background: transparent; accent-color: var(--coral-deep); }
.sd-nights { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; }
.sd-nights .tool-field label { font-size: .78rem; text-align: center; }
.sd-nights .tool-field input { padding: 10px 4px; text-align: center; }
.sd-chart { position: relative; margin-top: 20px; height: 210px; }
.sd-cols { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; height: 100%; }
.sd-col { display: grid; grid-template-rows: minmax(0, 1fr) 22px 24px; text-align: center; min-width: 0; }
.sd-barwrap { position: relative; border-bottom: 1px solid var(--line); }
.sd-bar { position: absolute; left: 14%; right: 14%; bottom: 0; border-radius: 7px 7px 0 0; background: var(--green); }
html[data-theme="dark"] .sd-bar:not(.sd-bar-short) { background: var(--lavender); }
@media (prefers-color-scheme: dark) { html:not([data-theme="light"]) .sd-bar:not(.sd-bar-short) { background: var(--lavender); } }
.sd-bar.sd-bar-short { background: var(--coral-deep); }
.sd-day { align-self: end; font-size: .76rem; font-weight: 850; color: var(--ink); }
.sd-val { font-size: .76rem; color: var(--muted); }
.sd-need { position: absolute; left: 0; right: 0; height: 0; border-top: 2px dashed var(--ink); z-index: 1; pointer-events: none; }
.sd-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; margin: 10px 0 0; color: var(--muted); font-size: .78rem; }
.sd-key { display: inline-block; width: 14px; height: 10px; border-radius: 3px; margin-left: 8px; }
.sd-key:first-child { margin-left: 0; }
.sd-key-line { height: 0; width: 20px; border-radius: 0; border-top: 2px dashed var(--ink); }
.sd-key-short { background: var(--coral-deep); }
.sd-key-ok { background: var(--green); }
html[data-theme="dark"] .sd-key-ok { background: var(--lavender); }
@media (prefers-color-scheme: dark) { html:not([data-theme="light"]) .sd-key-ok { background: var(--lavender); } }

/* content below the tool */
.tool-prose { padding: 14px 0 0; }
.tool-prose.article-content > p:first-child { font-size: 1.13rem; line-height: 1.78; }
.tool-prose h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); margin-top: 44px; }
.tool-prose h3 { font-size: 1.22rem; margin-top: 26px; }
.tool-prose sup a { text-decoration: none; font-family: var(--sans); font-weight: 850; font-size: .78em; padding: 0 2px; }
.tool-faq h3 { letter-spacing: -.02em; }
.tool-end { padding-bottom: 80px; }
.tool-hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.tool-hub-grid .card { min-height: 230px; }
.tool-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.section-head > .card-link { flex: none; white-space: nowrap; }
.tool-strip .card { min-height: 0; padding: 21px; }
.tool-strip .card h3 { font-size: 1.22rem; }
.tool-strip .card p { font-size: .92rem; line-height: 1.5; }

@media (max-width: 980px) { .tool-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) {
  .tool-wrap { width: min(calc(100% - 28px), 900px); }
  .tool-form, .tool-cutoffs, .tool-hub-grid { grid-template-columns: 1fr; }
  .tool-group .tool-pair { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .caf-row, .caf-row:has(.caf-mg:not([hidden])) { grid-template-columns: minmax(0, 1fr) 112px 44px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
  .caf-row > .tool-field:first-child { grid-column: 1 / -1; }
  .caf-row:not(:has(.caf-mg:not([hidden]))) > .tool-field:nth-child(3) { grid-column: 1 / 3; }
  .tool-table { font-size: .86rem; }
  .tool-table .tt-x { display: none; }
  .sd-nights { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .sd-cols { gap: 4px; }
  .sd-val { font-size: .68rem; }
  .ct-row { grid-template-columns: 1fr; }
  .ct-times { grid-column: 1; }
  .ct-axis { margin-left: 0; }
  .tool-strip { grid-template-columns: 1fr; }
}
@media print { .tool-card { box-shadow: none; } }