/* ════════════════════════════════════════════
   tools.css — v2.0 full audit rewrite
   Tool Hub & individual tool pages
════════════════════════════════════════════ */

/* ════ TOOLS HUB HERO ════ */
.tools-hero { background: linear-gradient(135deg, var(--green-deep) 0%, #1a3d2b 100%); padding: 52px 24px 44px; position: relative; overflow: hidden; }
.tools-hero::after { content: '⚙'; position: absolute; right: 60px; top: 50%; transform: translateY(-50%); font-size: 160px; opacity: 0.04; color: white; pointer-events: none; line-height: 1; }
.tools-hero-inner { max-width: var(--container); margin: 0 auto; position: relative; z-index: 1; }
.tools-hero-title { font-family: var(--font-display); font-size: clamp(26px,5vw,40px); font-weight: 700; color: white; margin-bottom: 10px; }
.tools-hero-sub { color: rgba(255,255,255,0.65); font-size: 16px; margin-bottom: 24px; }
.tools-search { max-width: 500px; display: flex; background: white; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-lg); }
.tools-search input { flex: 1; padding: 13px 16px; border: none; outline: none; font-family: var(--font-body); font-size: 15px; color: var(--ink); background: transparent; min-width: 0; }
.tools-search button { background: var(--amber); border: none; padding: 13px 18px; cursor: pointer; font-size: 17px; transition: var(--transition); flex-shrink: 0; }
.tools-search button:hover { background: var(--amber-deep); }

/* Tools hub body */
.tools-hub-body { padding: 0 0 48px; }

/* ════ SINGLE TOOL PAGE LAYOUT ════ */
.tool-page-layout { max-width: var(--container); margin: 0 auto; padding: 48px 24px; display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.tool-main { min-width: 0; }
.tool-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 88px; }

/* Tool header */
.tool-header { margin-bottom: 28px; }
.tool-header-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--green-pale); color: var(--green-mid); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; }
.tool-header-title { font-family: var(--font-display); font-size: clamp(26px,4vw,36px); font-weight: 700; color: var(--ink); line-height: 1.2; margin-bottom: 10px; letter-spacing: -0.4px; }
.tool-header-desc { font-size: 16px; color: var(--ink-light); line-height: 1.7; }
.tool-header-meta { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }

/* ════ CALCULATOR CARD ════ */
.calculator-card { background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.tool-widget-wrapper { margin-bottom: 0; }

.calc-header { background: var(--green-deep); padding: 18px 22px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.calc-header-icon { font-size: 22px; flex-shrink: 0; }
.calc-header-title { font-family: var(--font-display); font-size: 17px; color: white; font-weight: 600; }
.calc-header-sub { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 1px; }

.calc-body { padding: 24px 22px; }
.calc-section { margin-bottom: 24px; }
.calc-section-label { font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--green-mid); margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--green-pale); }

/* Form elements */
.form-row { margin-bottom: 14px; }
.form-label { font-size: 13px; font-weight: 600; color: var(--ink-mid); margin-bottom: 6px; display: block; }
.form-group { display: flex; gap: 8px; align-items: stretch; }
.form-input { width: 100%; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 15px; color: var(--ink); background: var(--white); transition: var(--transition); outline: none; }
.form-input:focus { border-color: var(--green-mid); box-shadow: 0 0 0 3px rgba(45,106,79,0.1); }
.form-select { flex: 1; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 15px; color: var(--ink); background: var(--white); cursor: pointer; outline: none; transition: var(--transition); min-width: 0; }
.form-select:focus { border-color: var(--green-mid); box-shadow: 0 0 0 3px rgba(45,106,79,0.1); }
.form-unit { padding: 10px 12px; background: var(--cream); border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; color: var(--ink-light); white-space: nowrap; flex-shrink: 0; display: flex; align-items: center; }
.form-hint { font-size: 12px; color: var(--ink-faint); margin-top: 5px; }

/* Calculate button */
.btn-calculate { width: 100%; padding: 14px; background: var(--green-mid); color: white; border: none; border-radius: var(--radius-md); font-family: var(--font-body); font-size: 16px; font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; gap: 8px; }
.btn-calculate:hover { background: var(--green-deep); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-calculate:active { transform: none; }

/* Results */
.calc-results { margin-top: 20px; background: var(--green-pale); border: 1px solid rgba(45,106,79,0.2); border-radius: var(--radius-md); padding: 18px; display: none; }
.calc-results.visible { display: block; animation: slideUp 0.35s ease; }
@keyframes slideUp { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:translateY(0); } }
.results-title { font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--green-mid); margin-bottom: 14px; }
.result-main { background: var(--green-mid); border-radius: var(--radius-sm); padding: 13px 16px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.result-main-label { font-size: 13px; color: rgba(255,255,255,0.75); }
.result-main-value { font-family: var(--font-mono); font-size: 20px; font-weight: 500; color: white; }
.result-row { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px solid rgba(45,106,79,0.12); gap: 12px; }
.result-row:last-child { border: none; }
.result-label { font-size: 13px; color: var(--ink-mid); }
.result-value { font-family: var(--font-mono); font-size: 14px; font-weight: 500; color: var(--green-deep); text-align: right; }
.amber-tip { background: var(--amber-pale); border: 1px solid rgba(233,168,76,0.3); border-radius: var(--radius-sm); padding: 12px 14px; margin-top: 14px; font-size: 13px; color: var(--amber-deep); display: flex; gap: 8px; align-items: flex-start; }

/* Result actions */
.result-actions { display: flex; gap: 10px; margin-top: 14px; }
.btn-print { flex: 1; padding: 10px; background: white; border: 1.5px solid var(--green-mid); border-radius: var(--radius-sm); color: var(--green-mid); font-weight: 600; font-size: 14px; cursor: pointer; transition: var(--transition); font-family: var(--font-body); }
.btn-print:hover { background: var(--green-pale); }
.btn-reset { padding: 10px 16px; background: transparent; border: 1.5px solid var(--border); border-radius: var(--radius-sm); color: var(--ink-light); font-size: 14px; cursor: pointer; transition: var(--transition); font-family: var(--font-body); }
.btn-reset:hover { border-color: var(--ink-light); color: var(--ink); }

/* Tool sidebar how it works */
.how-step { display: flex; gap: 12px; margin-bottom: 14px; align-items: flex-start; }
.how-step-num { width: 26px; height: 26px; flex-shrink: 0; background: var(--green-deep); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; }
.how-step-text { font-size: 14px; color: var(--ink-mid); line-height: 1.5; padding-top: 3px; }
.how-step-text strong { color: var(--ink); }

/* Tool article below calculator */
.tool-article { margin-top: 44px; }
.tool-article h2 { font-family: var(--font-display); font-size: 22px; font-weight: 600; color: var(--ink); margin: 28px 0 12px; }
.tool-article h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; color: var(--ink); margin: 20px 0 8px; }
.tool-article p { font-size: 15px; color: var(--ink-mid); line-height: 1.8; margin-bottom: 14px; }
.tool-article ul { list-style: disc; padding-left: 20px; margin-bottom: 14px; }
.tool-article ol { list-style: decimal; padding-left: 20px; margin-bottom: 14px; }
.tool-article li { font-size: 15px; color: var(--ink-mid); margin-bottom: 6px; line-height: 1.6; }

/* FAQ accordion */
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 8px; overflow: hidden; }
.faq-q { padding: 14px 16px; font-weight: 600; font-size: 15px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: var(--transition); user-select: none; }
.faq-q:hover { background: var(--green-pale); color: var(--green-deep); }
.faq-q .faq-icon { font-size: 18px; transition: transform 0.3s ease; font-style: normal; font-weight: 400; flex-shrink: 0; margin-left: 12px; }
.faq-item.open .faq-q { background: var(--green-pale); color: var(--green-deep); }
.faq-item.open .faq-q .faq-icon { transform: rotate(45deg); }
.faq-a { padding: 0 16px; font-size: 14px; color: var(--ink-mid); line-height: 1.7; max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 16px 14px; }

/* Coming soon */
.tool-coming-soon .calc-body { text-align: center; padding: 48px 24px; }

/* ════════════════════════════════════
   RESPONSIVE
════════════════════════════════════ */
@media (max-width: 1024px) {
  .tool-page-layout { grid-template-columns: 1fr; }
  .tool-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
  .tool-sidebar .sidebar-card { flex: 1; min-width: 240px; }
}
@media (max-width: 768px) {
  .tools-hero { padding: 36px 16px 32px; }
  .tools-hero::after { display: none; }
  .tools-search { max-width: 100%; }
  .tool-page-layout { padding: 28px 16px; }
  .tool-sidebar { flex-direction: column; }
  .tool-sidebar .sidebar-card { min-width: unset; }
  .calc-header { flex-wrap: wrap; gap: 8px; }
}
@media (max-width: 480px) {
  .calc-body { padding: 18px 14px; }
  .result-actions { flex-direction: column; }
  .result-main { flex-direction: column; align-items: flex-start; gap: 6px; }
  .result-main-value { font-size: 18px; }
  .form-group { flex-wrap: wrap; }
  .form-unit { width: 100%; }
}