/**
 * Temă vizuală aliniată cu bilka.ro (culori oficiale aprox.: roșu #ed1c24 / #e41e25,
 * text #404040, Montserrat, zone neutre #e6e7e8).
 */
@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap&subset=latin-ext");

html {
  height: 100%;
}

:root {
  --bilka-red: #ed1c24;
  --bilka-red-dark: #c91820;
  --bilka-red-alt: #e41e25;
  --bilka-text: #404040;
  --bilka-text-heading: #2d2d2d;
  --bilka-muted: #6b6b6b;
  --bilka-bg: #f3f4f5;
  --bilka-bg-footer: #e6e7e8;
  --bilka-card: #ffffff;
  --bilka-border: #d9d9d9;
  --bilka-border-soft: #e8e8e8;
  --bilka-shadow: 0 2px 12px rgba(64, 64, 64, 0.08);
  --bilka-radius: 10px;
  --bilka-radius-sm: 6px;
  --bilka-result-bg: #fff5f5;
  --bilka-result-border: #f5c2c7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--bilka-text);
  background: var(--bilka-bg);
}

a {
  color: var(--bilka-red-alt);
  text-decoration: none;
  font-weight: 600;
}

a:hover {
  color: var(--bilka-red);
  text-decoration: underline;
}

/* Antet — alb, bandă roșie ca pe bilka.ro */
.site-header {
  background: var(--bilka-card);
  color: var(--bilka-text-heading);
  padding: 1rem 1.5rem 1.25rem;
  border-bottom: 4px solid var(--bilka-red);
  box-shadow: var(--bilka-shadow);
}

.site-header strong {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--bilka-text-heading);
}

.site-header a {
  color: var(--bilka-text);
  font-weight: 600;
  text-decoration: none;
}

.site-header a:hover {
  color: var(--bilka-red);
  text-decoration: none;
}

.site-header nav {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
}

main {
  flex: 1 0 auto;
  width: 100%;
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 4rem;
}

.home-hero-card {
  margin-bottom: 1.5rem;
}

.home-hero-card .roof-schematic--photo {
  margin-top: 0;
}

h1 {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 0.65rem;
  color: var(--bilka-text-heading);
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.5rem 0 0.75rem;
  color: var(--bilka-text-heading);
}

.card {
  background: var(--bilka-card);
  border: 1px solid var(--bilka-border-soft);
  border-radius: var(--bilka-radius);
  padding: 1.35rem 1.35rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--bilka-shadow);
}

.field-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
}

label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--bilka-text-heading);
  text-transform: none;
}

input,
select,
button {
  font: inherit;
}

input[type="number"],
select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--bilka-border);
  border-radius: var(--bilka-radius-sm);
  color: var(--bilka-text);
  background: var(--bilka-card);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="number"]:hover,
select:hover {
  border-color: #c0c0c0;
}

input[type="number"]:focus,
select:focus {
  outline: none;
  border-color: var(--bilka-red-alt);
  box-shadow: 0 0 0 3px rgba(237, 28, 36, 0.15);
}

button[type="submit"],
.btn-primary {
  background: var(--bilka-red);
  color: #fff;
  border: none;
  padding: 0.55rem 1.25rem;
  border-radius: var(--bilka-radius-sm);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  transition: background 0.15s ease, transform 0.1s ease;
}

button[type="submit"]:hover,
.btn-primary:hover {
  background: var(--bilka-red-dark);
  filter: none;
}

button[type="submit"]:active,
.btn-primary:active {
  transform: translateY(1px);
}

.result-box {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  background: var(--bilka-result-bg);
  border: 1px solid var(--bilka-result-border);
  border-left: 4px solid var(--bilka-red);
  border-radius: var(--bilka-radius-sm);
}

.result-box strong {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--bilka-text-heading);
}

.disclaimer {
  font-size: 0.8125rem;
  color: var(--bilka-muted);
  margin-top: 1rem;
  line-height: 1.45;
}

code {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.9em;
  background: var(--bilka-bg-footer);
  padding: 0.12em 0.35em;
  border-radius: 4px;
  color: var(--bilka-text-heading);
}

.calc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.calc-list a {
  display: block;
  padding: 0.65rem 0.9rem;
  background: var(--bilka-card);
  border: 1px solid var(--bilka-border-soft);
  border-radius: var(--bilka-radius-sm);
  text-decoration: none;
  color: var(--bilka-text);
  font-weight: 600;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.calc-list a:hover {
  border-color: var(--bilka-red);
  box-shadow: 0 2px 8px rgba(237, 28, 36, 0.12);
  color: var(--bilka-text-heading);
  text-decoration: none;
}

/* Scheme acoperiș (SVG) */
.roof-schematic {
  margin: 0;
}

.roof-schematic figcaption {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--bilka-muted);
  margin-bottom: 0.75rem;
}

.roof-schematic svg {
  display: block;
  width: 100%;
  max-width: 30rem;
  height: auto;
  margin: 0 auto;
}

.roof-schematic--photo {
  margin-top: 1.25rem;
}

.shed-source-roof-img {
  display: block;
  width: 100%;
  max-width: 31.25rem;
  height: auto;
  margin: 0 auto;
}

.roof-schematic .schematic-frame {
  border: 1px solid var(--bilka-border-soft);
  border-radius: var(--bilka-radius);
  background: var(--bilka-bg-footer);
  padding: 0.85rem 0.65rem;
}

/* Navigare între moduri / secțiuni (shed, pitch, geometry, …) */
.shed-subnav,
.pitch-subnav,
.geom-subnav,
.gable-subnav,
.hip-subnav,
.trei-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  background: var(--bilka-card);
  border: 1px solid var(--bilka-border-soft);
  border-radius: var(--bilka-radius);
  box-shadow: var(--bilka-shadow);
}

.shed-subnav a,
.pitch-subnav a,
.geom-subnav a,
.gable-subnav a,
.hip-subnav a,
.trei-subnav a {
  color: var(--bilka-text);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  padding: 0.2rem 0;
  border-bottom: 2px solid transparent;
}

.shed-subnav a:hover,
.pitch-subnav a:hover,
.geom-subnav a:hover,
.gable-subnav a:hover,
.hip-subnav a:hover,
.trei-subnav a:hover {
  color: var(--bilka-red);
  text-decoration: none;
}

.shed-subnav a[aria-current="page"],
.pitch-subnav a[aria-current="page"],
.geom-subnav a[aria-current="page"],
.gable-subnav a[aria-current="page"],
.hip-subnav a[aria-current="page"],
.trei-subnav a[aria-current="page"] {
  color: var(--bilka-red);
  border-bottom-color: var(--bilka-red);
}

.shed-meters-note {
  font-size: 0.875rem;
  color: var(--bilka-muted);
  margin: 0 0 1.25rem;
}

.shed-panel[hidden],
.pitch-panel[hidden],
.geom-panel[hidden],
.gable-panel[hidden],
.hip-panel[hidden],
.trei-panel[hidden] {
  display: none !important;
}

.shed-intro-lead,
.pitch-intro-lead,
.geom-intro-lead,
.gable-intro-lead,
.hip-intro-lead {
  margin: 0 0 1.25rem;
  color: var(--bilka-text);
  max-width: 42rem;
}

.shed-panel > h2,
.pitch-panel > h2,
.geom-panel > h2,
.gable-panel > h2,
.hip-panel > h2,
.trei-panel > h2 {
  margin-top: 0;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--bilka-text-heading);
}

.shed-calc-card h2,
.pitch-calc-card h2,
.geom-calc-card h2,
.gable-calc-card h2,
.hip-calc-card h2,
.trei-calc-card h2 {
  margin-top: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--bilka-text-heading);
}

.shed-calc-hint,
.pitch-calc-hint,
.geom-calc-hint,
.gable-calc-hint,
.hip-calc-hint,
.trei-calc-hint {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--bilka-muted);
  line-height: 1.45;
  max-width: 40rem;
}

.pitch-unit-note,
.geom-unit-note,
.gable-unit-note,
.hip-unit-note,
.trei-unit-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
  color: var(--bilka-muted);
}

.pitch-unit-select,
.geom-unit-select,
.gable-unit-select,
.hip-unit-select,
.trei-unit-select {
  max-width: 8rem;
}

.geom-cat-figure {
  margin: 0 0 1rem;
}

.geom-cat-figure figcaption {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--bilka-muted);
  margin-bottom: 0.65rem;
}

.geom-cat-img {
  display: block;
  width: 100%;
  max-width: 26rem;
  height: auto;
  margin: 0 auto;
}

.geom-doc h3 {
  font-size: 0.95rem;
  font-weight: 800;
  margin: 1.15rem 0 0.45rem;
  color: var(--bilka-text-heading);
}

.geom-doc h3:first-child {
  margin-top: 0;
}

.geom-doc p {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--bilka-text);
  max-width: 40rem;
}

.geom-doc-structure h3 {
  margin-top: 1.35rem;
}

.geom-doc-structure h3:first-of-type {
  margin-top: 0;
}

.geom-doc-structure p:last-child {
  margin-bottom: 0;
}

.geom-result-values {
  margin-bottom: 0.75rem;
}

.geom-result-details {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--bilka-result-border);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--bilka-text);
}

.geom-result-details-title {
  margin: 0 0 0.4rem;
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--bilka-text-heading);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.geom-result-details ul {
  margin: 0;
  padding-left: 1.15rem;
}

.geom-result-details li {
  margin-bottom: 0.45rem;
}

.geom-result-details li:last-child {
  margin-bottom: 0;
}

.gable-out-links,
.hip-out-links,
.trei-out-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0.65rem 0 0;
  font-size: 0.875rem;
}

.hip-out-links a,
.trei-out-links a {
  color: var(--bilka-red);
  font-weight: 600;
  text-decoration: none;
}

.hip-out-links a:hover,
.trei-out-links a:hover {
  text-decoration: underline;
}

.gable-result-breakdown,
.hip-result-breakdown,
.trei-result-breakdown {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--bilka-result-border);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--bilka-text);
}

.gable-result-breakdown h4,
.hip-result-breakdown h4 {
  margin: 0.9rem 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--bilka-text-heading);
}

.gable-result-breakdown h4:first-of-type,
.hip-result-breakdown h4:first-of-type,
.trei-result-breakdown h4:first-of-type {
  margin-top: 0.35rem;
}

.gable-result-breakdown p,
.gable-result-breakdown li,
.hip-result-breakdown p,
.hip-result-breakdown li,
.trei-result-breakdown p,
.trei-result-breakdown li {
  margin: 0 0 0.35rem;
}

.gable-result-breakdown ul,
.hip-result-breakdown ul,
.trei-result-breakdown ul {
  margin: 0;
  padding-left: 1.1rem;
}

.pitch-doc h3 {
  font-size: 0.95rem;
  font-weight: 800;
  margin: 1.15rem 0 0.45rem;
  color: var(--bilka-text-heading);
}

.pitch-doc h3:first-child {
  margin-top: 0;
}

.pitch-doc p {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--bilka-text);
  max-width: 40rem;
}

.pitch-doc ul {
  margin: 0 0 0.5rem;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--bilka-text);
  max-width: 40rem;
}

.pitch-doc li {
  margin-bottom: 0.4rem;
}

.pitch-schematic {
  margin-top: 0;
}

.pitch-schematic .schematic-frame {
  max-width: 22rem;
  margin: 0 auto;
}

.pitch-cat-figure {
  margin: 0 0 1rem;
}

.pitch-cat-figure figcaption {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--bilka-muted);
  margin-bottom: 0.65rem;
}

.pitch-cat-img {
  display: block;
  width: 100%;
  max-width: 26rem;
  height: auto;
  margin: 0 auto;
}

.pitch-result-values {
  margin-bottom: 0.75rem;
}

.pitch-result-details {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--bilka-result-border);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--bilka-text);
}

.pitch-result-details-title {
  margin: 0 0 0.4rem;
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--bilka-text-heading);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pitch-result-details ul {
  margin: 0;
  padding-left: 1.15rem;
}

.pitch-result-details li {
  margin-bottom: 0.45rem;
}

.pitch-result-details li:last-child {
  margin-bottom: 0;
}

.shed-block-title,
.gable-block-title,
.hip-block-title,
.trei-block-title {
  font-size: 0.9375rem;
  font-weight: 800;
  margin: 1.15rem 0 0.5rem;
  color: var(--bilka-text-heading);
}

.shed-calc-card .shed-block-title:first-of-type,
.gable-calc-card .gable-block-title:first-of-type,
.hip-calc-card .hip-block-title:first-of-type,
.trei-calc-card .trei-block-title:first-of-type {
  margin-top: 0;
}

.gable-legend-list,
.hip-legend-list,
.trei-legend-list {
  margin: 0 0 0.75rem;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--bilka-text);
  max-width: 40rem;
}

.gable-legend-list li,
.hip-legend-list li,
.trei-legend-list li {
  margin-bottom: 0.45rem;
}

/* Mai multe moduri de calcul pe aceeași pagină (ex. shed) */
.shed-calculators .shed-calc-block + .shed-calc-block {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--bilka-border-soft);
}

.shed-calc-block h2 {
  margin-top: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--bilka-text-heading);
}

/* Subsol discret (opțional pe pagini) */
.site-footer {
  margin-top: auto;
  padding: 2rem 1.25rem;
  background: var(--bilka-bg-footer);
  color: var(--bilka-muted);
  font-size: 0.8125rem;
  text-align: center;
  border-top: 1px solid var(--bilka-border);
}

/* Versiune aplicație + link jurnal (actualizați ambele la release nou) */
.site-footer-release {
  margin: 0.85rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--bilka-border-soft);
  font-size: 0.8125rem;
}

.site-footer-release-version {
  font-weight: 800;
  color: var(--bilka-text-heading);
}

.site-footer--release-only {
  padding: 1.25rem 1.25rem 1.75rem;
}

.site-footer--release-only .site-footer-release {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}