:root {
  --ink: #18201e;
  --muted: #66706b;
  --line: #dde4df;
  --paper: #f6f7f4;
  --white: #ffffff;
  --green: #24583f;
  --green-dark: #173d2b;
  --yellow: #f2b233;
  --orange: #d56a2d;
  --blue: #244b73;
  --shadow: 0 18px 50px rgba(24, 32, 30, 0.12);
  font-family: Arial, Helvetica, sans-serif;
}

/* Makale sayfasi kilidi: genel baslik/gorsel kurallari makale govdesini bozmamali. */
.article-page .article-detail {
  box-sizing: border-box;
  width: min(1040px, calc(100% - 32px));
  margin-inline: auto;
  padding: 34px 0 70px;
}

.article-page .article-breadcrumb,
.article-page .article-detail-head,
.article-page .article-content,
.article-page .article-cta {
  box-sizing: border-box;
  width: 100%;
  max-width: 1040px;
  margin-inline: auto;
}

.article-page .article-detail-head h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(34px, 5vw, 66px);
  line-height: 1.02;
  letter-spacing: 0;
}

.article-page .article-content {
  padding-top: clamp(24px, 4vw, 48px);
}

.article-page .article-content h2 {
  margin: 38px 0 12px;
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.12;
  letter-spacing: 0;
}

.article-page .article-content p,
.article-page .article-content li {
  max-width: 920px;
  color: #334034;
  font-size: 18px;
  line-height: 1.72;
}

.article-page .article-content ul {
  max-width: 920px;
  padding-left: 24px;
}

.article-page .article-content figure {
  box-sizing: border-box;
  width: min(820px, 100%);
  margin: 28px auto;
  border: 1px solid var(--line);
  background: var(--white);
}

.article-page .article-content figure img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 720px) {
  .article-page .article-detail {
    width: min(100% - 20px, 1040px);
    padding-top: 22px;
  }

  .article-page .article-detail-head {
    padding: 22px 18px;
  }

  .article-page .article-detail-head h1 {
    font-size: clamp(30px, 10vw, 44px);
  }

  .article-page .article-content p,
  .article-page .article-content li {
    font-size: 16px;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
}

body > main {
  display: flex;
  flex-direction: column;
}

main > section {
  scroll-margin-top: 76px;
}

img {
  max-width: 100%;
  display: block;
}

.hero {
  order: 2;
}

.calculator-section {
  order: 1;
}

.proof-strip {
  order: 3;
}

#cozumler {
  order: 4;
}

.quality-band {
  order: 5;
}

#paketler {
  order: 6;
}

#urunler {
  order: 7;
}

#rehber {
  order: 8;
}

#bilgi-merkezi {
  order: 9;
}

#teklif {
  order: 10;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(18px, 5vw, 64px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 78px;
  height: 44px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 30;
}

.mobile-nav {
  display: block;
}

.mobile-nav .site-nav {
  display: flex;
}

.site-nav a {
  text-decoration: none;
  color: #28312e;
  font-weight: 700;
  font-size: 14px;
  padding: 11px 13px;
}

.site-nav .nav-cta {
  background: var(--green);
  color: var(--white);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  font-size: 22px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  list-style: none;
  text-align: center;
  line-height: 42px;
}

.nav-toggle::-webkit-details-marker {
  display: none;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(430px, calc(52vh - 20px));
  overflow: hidden;
  background: #18201e;
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(760px, 100%);
  padding: clamp(26px, 4vw, 42px) clamp(22px, 6vw, 76px);
  color: var(--white);
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.34);
}

.hero h1 {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.02;
  margin-bottom: 14px;
}

.eyebrow {
  color: var(--orange);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 14px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  max-width: 820px;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
}

.hero-copy p:not(.eyebrow),
.section-head p,
.quote-section p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
  max-width: 680px;
}

.hero-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.9);
  font-size: 17px;
  line-height: 1.5;
}

.hero-actions,
.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.button,
.product-actions a,
.product-actions button,
.solution-card a,
.guide-grid a,
.quote-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
}

.button.primary {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

.button.ghost {
  background: transparent;
}

.hero .button.ghost {
  border-color: rgba(255, 255, 255, 0.72);
  color: var(--white);
  background: rgba(0, 0, 0, 0.18);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 18, 15, 0.68), rgba(10, 18, 15, 0.28) 48%, rgba(10, 18, 15, 0.04)),
    linear-gradient(0deg, rgba(10, 18, 15, 0.12), rgba(10, 18, 15, 0.02));
}

.hero-note {
  position: absolute;
  right: clamp(18px, 4vw, 54px);
  bottom: 26px;
  z-index: 2;
  max-width: 330px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.93);
  box-shadow: var(--shadow);
}

.hero-note strong,
.hero-note span {
  display: block;
}

.hero-note span {
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.45;
}

.quick-intent {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
}

.quick-intent span {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 800;
}

.quick-intent a {
  text-decoration: none;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: var(--white);
  font-weight: 800;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.proof-strip article {
  padding: 24px clamp(18px, 3vw, 40px);
  border-right: 1px solid var(--line);
}

.proof-strip strong,
.proof-strip span {
  display: block;
}

.proof-strip span {
  color: var(--muted);
  margin-top: 6px;
}

.section,
.quote-section {
  padding: clamp(56px, 8vw, 98px) clamp(18px, 5vw, 64px);
}

#urunler.section {
  padding-top: 10px;
  padding-bottom: 34px;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.7fr);
  gap: 36px;
  align-items: end;
  margin-bottom: 34px;
}

.solution-grid,
.package-grid,
.product-grid,
.guide-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.product-grid {
  align-items: start;
  gap: 14px;
}

.solution-card,
.package-card,
.product-card,
.guide-grid article,
.article-card {
  background: var(--white);
  border: 1px solid var(--line);
}

.solution-card img,
.package-card img,
.product-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: #eef1ed;
}

.solution-card div,
.product-card div,
.guide-grid article {
  padding: 20px;
}

.product-card div {
  padding: 14px 16px 16px;
}

.solution-card span,
.tag,
.badge {
  display: inline-flex;
  width: fit-content;
  background: #edf2ee;
  color: var(--green-dark);
  padding: 6px 9px;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 12px;
}

.solution-card p,
.package-card p,
.product-card p,
.guide-grid p,
.article-card p {
  color: var(--muted);
  line-height: 1.55;
}

.article-section {
  background: #eef3ef;
}

.article-section .section-head {
  display: block;
  margin-bottom: 22px;
}

.article-section .section-head h2 {
  max-width: none;
  white-space: nowrap;
}

.article-card a {
  display: grid;
  min-height: 100%;
  color: inherit;
  text-decoration: none;
}

.article-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  height: auto;
  object-fit: contain;
  background: #fff;
}

.article-card span {
  display: inline-flex;
  width: fit-content;
  margin: 18px 18px 0;
  padding: 6px 9px;
  background: #edf2ee;
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 900;
}

.article-card h3 {
  margin: 12px 18px 0;
  line-height: 1.25;
}

.article-card p {
  margin: 10px 18px 0;
}

.article-card strong {
  display: block;
  margin: 16px 18px 18px;
  color: var(--green-dark);
}

.article-more-link {
  margin-top: 20px;
}

.article-index-page,
.article-page {
  display: block;
}

.article-index-hero {
  padding: clamp(54px, 8vw, 96px) clamp(18px, 5vw, 64px);
  background: #eef3ef;
}

.article-index-hero h1,
.article-detail-head h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(34px, 5vw, 66px);
  line-height: 1.02;
}

.article-index-hero p,
.article-detail-head p {
  max-width: 780px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.article-index-section {
  background: var(--paper);
}

.article-group {
  margin-bottom: 34px;
}

.article-group h2 {
  margin: 0 0 16px;
}

.article-detail {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 70px;
}

.article-breadcrumb {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 28px;
}

.article-breadcrumb a {
  color: var(--green-dark);
  font-weight: 800;
}

.article-detail-head {
  padding: clamp(26px, 5vw, 54px);
  background: #eef3ef;
  border: 1px solid var(--line);
}

.article-detail-head span {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 14px;
  padding: 7px 10px;
  background: var(--white);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 900;
}

.article-content {
  padding: clamp(24px, 4vw, 48px) 0 0;
}

.article-content h2 {
  margin: 38px 0 12px;
  font-size: clamp(25px, 3vw, 38px);
  line-height: 1.12;
}

.article-content p,
.article-content li {
  color: #334034;
  font-size: 18px;
  line-height: 1.72;
}

.article-content ul {
  padding-left: 24px;
}

.article-content figure {
  width: min(820px, 100%);
  margin: 28px auto;
  border: 1px solid var(--line);
  background: var(--white);
}

.article-content figure a {
  display: block;
  overflow: hidden;
  background: #eef1ed;
}

.article-content figure img {
  width: 100%;
  height: auto;
  transition: transform 0.18s ease;
}

.article-content figure a:hover img,
.article-content figure a:focus-visible img {
  transform: scale(1.035);
}

.article-content figcaption {
  padding: 12px 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.article-content figcaption span {
  display: block;
  margin-top: 5px;
  color: var(--green-dark);
  font-weight: 900;
}

.article-cta {
  display: grid;
  gap: 16px;
  align-items: center;
  margin-top: 38px;
  padding: 22px;
  border: 1px solid #d9c18a;
  background: #fff7e7;
}

.article-cta strong {
  font-size: 20px;
  line-height: 1.35;
}

.quality-band {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  gap: 36px;
  padding: clamp(46px, 6vw, 80px) clamp(18px, 5vw, 64px);
  background: var(--green-dark);
  color: var(--white);
}

.quality-band .eyebrow {
  color: var(--yellow);
}

.quality-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: center;
}

.quality-list span {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
}

.package-card {
  display: flex;
  flex-direction: column;
}

.package-body {
  padding: 22px;
}

.package-card ul,
.product-dialog ul {
  padding-left: 19px;
  line-height: 1.7;
  color: var(--muted);
}

.calculator-section {
  padding: clamp(32px, 5vw, 64px) clamp(18px, 5vw, 64px);
  background: #f0f3ef;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.calculator-section .eyebrow {
  font-size: 15px;
  margin-bottom: 10px;
}

.calculator-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.calculator-form,
.calculator-result {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 24px;
}

.calculator-form {
  display: grid;
  gap: 18px;
}

.flow-block {
  display: grid;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  background: #fbfcfa;
}

.step-panel {
  display: none;
}

.step-panel.active-step {
  display: grid;
}

.step-panel.active-step {
  border-color: #c8d2ca;
  box-shadow: 0 12px 30px rgba(24, 31, 28, 0.08);
}

.flow-title {
  color: #35413c;
  font-size: 15px;
}

.purpose-select-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.terrain-combobox {
  position: relative;
  display: grid;
  gap: 8px;
}

.terrain-select-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.terrain-option-list {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 2px solid #25312d;
  background: var(--white);
  box-shadow: 0 14px 30px rgba(24, 31, 28, 0.12);
  z-index: 5;
}

.terrain-option-list[hidden] {
  display: none;
}

.terrain-option {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  background: #fbfcfa;
  color: var(--ink);
  font: inherit;
  font-weight: 900;
  text-align: left;
  padding: 0 12px;
  cursor: pointer;
}

.terrain-option:hover,
.terrain-option:focus {
  border-color: #25312d;
  background: #eef3ef;
}

.purpose-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.purpose-card {
  display: grid;
  gap: 10px;
  min-height: 100%;
  padding: 8px;
  border: 4px solid var(--line);
  background: var(--white);
  color: var(--ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.purpose-card:hover {
  border-color: #839087;
  box-shadow: 0 8px 18px rgba(24, 31, 28, 0.08);
}

.purpose-card.selected {
  border-color: #26332e;
  box-shadow: inset 0 5px 0 #c67a2e, 0 0 0 3px rgba(198, 122, 46, 0.22), 0 14px 28px rgba(24, 31, 28, 0.16);
  transform: translateY(-2px);
}

.purpose-warning {
  margin: 0;
  padding: 10px 12px;
  border: 2px solid #b92323;
  background: #fff0e8;
  color: #7b1010;
  font-weight: 900;
}

.locked-step {
  opacity: 0.45;
  filter: grayscale(0.25);
  cursor: not-allowed;
}

.locked-step input,
.locked-step select,
.locked-step button {
  cursor: not-allowed;
}

.step-next {
  justify-self: start;
  border: 1px solid #25312d;
  background: #25312d;
  color: var(--white);
}

.step-back {
  justify-self: start;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  padding: 4px 0;
}

.step-back:hover {
  color: var(--ink);
}

.purpose-card-images {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
}

.purpose-card-images img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
  background: #f4f6f2;
}

.purpose-card strong,
.purpose-card small {
  display: block;
}

.purpose-card strong {
  font-size: 15px;
  line-height: 1.15;
}

.purpose-card small {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
}

.calculator-form label {
  display: grid;
  gap: 8px;
  color: #35413c;
  font-weight: 800;
}

.calculator-form input,
.calculator-form select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 0 12px;
  font: inherit;
}

.calculator-form input[type="range"] {
  padding: 0;
}

.input-suffix {
  display: grid;
  grid-template-columns: 1fr 86px;
}

.input-suffix span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-left: 0;
  background: #edf2ee;
  color: var(--muted);
}

.field-hint {
  margin: -8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.terrain-examples {
  display: grid;
  gap: 18px;
}

.terrain-risk-box {
  padding: 12px;
  border: 1px solid var(--line);
}

.terrain-risk-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.terrain-examples strong {
  display: block;
  color: #35413c;
}

.terrain-risk-head span {
  color: #6f4a11;
  font-size: 13px;
  font-weight: 800;
  text-align: right;
}

.terrain-images {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.terrain-images img {
  width: 100%;
  aspect-ratio: 16 / 15;
  object-fit: cover;
  border: 1px solid var(--line);
  background: #f4f6f2;
}

.check-option {
  grid-template-columns: 22px 1fr;
  align-items: start;
  font-weight: 700;
  color: var(--ink);
}

.check-option input {
  min-height: 20px;
  margin-top: 2px;
}

.choice-title {
  display: block;
  margin-bottom: 10px;
  color: #35413c;
}

.choice-grid {
  display: grid;
  gap: 10px;
}

.device-choice-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.choice-card {
  position: relative;
  display: grid;
  grid-template-columns: 22px 72px 1fr;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  background: #fbfcfa;
  padding: 10px;
  cursor: pointer;
}

.choice-badge {
  display: inline-flex;
  width: fit-content;
  margin-left: 8px;
  padding: 5px 8px;
  border: 1px solid #9f1d1d;
  background: #fff0d9;
  color: #b11313;
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.choice-title-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.device-choice-grid .choice-card {
  grid-template-columns: 22px 1fr;
  align-items: start;
}

.risk-step-0,
.calc-summary article.risk-step-0 {
  background: var(--crn-risk-10);
}

.risk-step-1,
.calc-summary article.risk-step-1 {
  background: var(--crn-risk-20);
}

.risk-step-2,
.calc-summary article.risk-step-2 {
  background: var(--crn-risk-30);
}

.risk-step-3,
.calc-summary article.risk-step-3 {
  background: var(--crn-risk-40);
}

.risk-step-4,
.calc-summary article.risk-step-4 {
  background: var(--crn-risk-50);
}

.risk-step-5,
.calc-summary article.risk-step-5 {
  background: var(--crn-risk-60);
}

.risk-step-6,
.calc-summary article.risk-step-6 {
  background: var(--crn-risk-70);
}

.risk-step-7,
.calc-summary article.risk-step-7 {
  background: var(--crn-risk-80);
}

.risk-step-8,
.calc-summary article.risk-step-8 {
  background: var(--crn-risk-90);
}

.risk-step-9,
.calc-summary article.risk-step-9 {
  background: var(--crn-risk-100);
}

.choice-card.selected {
  border-color: #26332e;
  box-shadow: inset 4px 0 0 #c67a2e;
}

.choice-card.selected:not(.choice-risk) {
  background: #eef3ef;
}

.choice-card input {
  min-height: 18px;
}

.choice-card img {
  width: 72px;
  aspect-ratio: 1;
  object-fit: contain;
  background: #f4f6f2;
}

.device-choice-grid .choice-card img {
  grid-column: 1 / -1;
  width: 100%;
  height: 132px;
  aspect-ratio: auto;
}

.device-choice-grid .choice-card span {
  grid-column: 1 / -1;
}

.choice-card strong,
.choice-card small {
  display: block;
}

.choice-card small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.35;
  font-weight: 600;
}

.calculator-result h3 {
  font-size: 28px;
}

.calc-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.calc-summary article {
  border: 1px solid var(--line);
  background: #f7faf7;
  padding: 14px;
}

.calc-summary span,
.calc-summary small {
  display: block;
  color: var(--muted);
}

.calc-summary span {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.calc-summary strong {
  display: block;
  margin: 6px 0;
  font-size: 17px;
  line-height: 1.25;
}

.calculator-result dl {
  display: grid;
  grid-template-columns: minmax(130px, 0.6fr) minmax(130px, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  margin: 0 0 18px;
}

.calculator-result dt,
.calculator-result dd {
  margin: 0;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.calculator-result dt {
  font-weight: 800;
  background: #eef3ef;
}

.calculator-result dd {
  color: var(--muted);
}

.grounding-advice {
  padding: 16px;
  background: #fff7e7;
  border: 1px solid #f0d6a4;
  margin-bottom: 16px;
}

.grounding-advice p {
  color: #6f4a11;
  line-height: 1.55;
  margin: 8px 0 0;
}

.grounding-advice .spare-note {
  font-weight: 800;
  color: #2b3a30;
}

.quote-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.compare-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--line);
}

.compare-bar > div {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.compare-bar span {
  color: var(--muted);
  font-weight: 800;
}

.compare-bar button {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: var(--white);
  font-weight: 800;
  cursor: pointer;
}

.button.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filters button {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: var(--white);
  font-weight: 800;
  cursor: pointer;
}

.filters button.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.search-label {
  display: grid;
  grid-template-columns: auto minmax(220px, 400px);
  align-items: center;
  gap: 10px;
  min-width: min(100%, 480px);
  font-weight: 800;
  color: var(--muted);
  font-size: 13px;
}

.search-label span {
  white-space: nowrap;
}

.search-label input,
.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font: inherit;
}

.quote-form textarea {
  min-height: 96px;
  padding-top: 12px;
  resize: vertical;
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-card h3 {
  margin-bottom: 12px;
}

.product-card .product-actions {
  gap: 8px;
  margin-top: 4px;
}

.product-card .product-actions a,
.product-card .product-actions button {
  min-height: 38px;
  padding: 0 16px;
}

.product-actions button {
  font: inherit;
}

.product-actions .compare-toggle {
  border-color: var(--blue);
  color: var(--blue);
}

.product-actions .compare-toggle.selected {
  background: var(--blue);
  color: var(--white);
}

.guide-section {
  background: #ffffff;
}

.guide-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.quote-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 0.9fr);
  gap: 42px;
  background: #e6ece8;
}

.quote-form {
  display: grid;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 24px;
  box-shadow: var(--shadow);
}

.quote-form label {
  display: grid;
  gap: 7px;
  font-weight: 800;
  color: #35413c;
}

.contact-section {
  background: #f7faf6;
  padding-top: 14px;
  padding-bottom: 14px;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(280px, 1fr);
  gap: 14px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  padding: clamp(16px, 2.5vw, 24px);
}

.contact-panel h2 {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 46px);
  letter-spacing: 0;
}

.contact-panel p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.contact-panel address {
  grid-column: 1 / -1;
  color: #2e3934;
  font-style: normal;
  font-weight: 800;
  line-height: 1.45;
  margin-top: 2px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-actions a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  flex: 1 1 210px;
  border: 1px solid var(--line);
  background: #f4f7f3;
  color: #17211d;
  font-weight: 900;
  text-align: center;
  text-decoration: none;
}

.contact-actions a:first-child,
.contact-actions a:last-child {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(18px, 5vw, 64px);
  background: var(--ink);
  color: var(--white);
}

.product-dialog {
  width: min(980px, calc(100vw - 24px));
  border: 0;
  padding: 0;
  box-shadow: var(--shadow);
}

.product-dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.dialog-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: var(--white);
  font-size: 28px;
  cursor: pointer;
}

#dialogBody {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(300px, 1fr);
}

#dialogBody > img {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
  background: #eef1ed;
}

#dialogBody > div {
  padding: 38px;
}

.product-dialog dl {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px;
  line-height: 1.5;
}

.product-dialog dt {
  font-weight: 800;
}

.product-dialog dd {
  margin: 0;
  color: var(--muted);
}

.product-page {
  background: var(--paper);
}

.product-page-nav {
  position: static;
}

.product-detail-hero {
  display: grid;
  grid-template-columns: minmax(360px, 0.85fr) minmax(0, 1fr);
  min-height: calc(100vh - 76px);
  background: #e9ede7;
}

.detail-media {
  background: var(--white);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: clamp(18px, 4vw, 56px);
}

.detail-image-viewer {
  position: relative;
  width: min(100%, 620px);
  touch-action: pan-y;
}

.detail-image-open {
  width: 100%;
  border: 0;
  background: #f7f8f6;
  padding: 0;
  cursor: zoom-in;
  display: block;
}

.detail-image-open img {
  width: 100%;
  max-height: 650px;
  object-fit: contain;
  display: block;
}

.detail-image-nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 44px;
  height: 56px;
  border: 1px solid rgba(19, 28, 23, 0.22);
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  font-size: 42px;
  line-height: 1;
  transform: translateY(-50%);
  cursor: pointer;
}

.detail-image-prev {
  left: 10px;
}

.detail-image-next {
  right: 10px;
}

.detail-image-nav:hover,
.detail-image-nav:focus-visible {
  background: var(--green);
  color: var(--white);
}

.detail-gallery {
  width: min(100%, 620px);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.detail-gallery button {
  border: 1px solid var(--line);
  background: #f5f7f4;
  padding: 4px;
  cursor: pointer;
}

.detail-gallery button.active,
.detail-gallery button.is-active {
  border-color: var(--green);
  box-shadow: inset 0 0 0 2px var(--green);
}

.detail-gallery img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  display: block;
}

.detail-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(36px, 7vw, 90px);
}

.detail-copy p:not(.eyebrow) {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.65;
  max-width: 680px;
}

.detail-text-section {
  padding: clamp(42px, 6vw, 76px) clamp(18px, 5vw, 64px) 0;
}

.detail-text-body {
  max-width: 980px;
}

.detail-text-body p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.detail-variant-section {
  padding: clamp(42px, 6vw, 76px) clamp(18px, 5vw, 64px) 0;
}

.variant-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.variant-card {
  background: var(--white);
  border: 1px solid var(--line);
  display: grid;
  grid-template-rows: minmax(220px, 280px) 1fr;
  overflow: hidden;
}

.variant-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #f7f8f6;
  padding: 18px;
}

.variant-card div {
  padding: 20px;
}

.variant-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.variant-card p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.6;
}

.variant-card ul {
  margin: 0 0 16px;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.variant-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  background: var(--ink);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
}

.detail-grid-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  padding: clamp(42px, 6vw, 76px) clamp(18px, 5vw, 64px);
}

.detail-grid-section article {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 24px;
}

.detail-grid-section h2 {
  font-size: 24px;
}

.detail-grid-section ul {
  padding-left: 19px;
  color: var(--muted);
  line-height: 1.75;
}

.detail-grid-section dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
}

.detail-grid-section dt {
  font-weight: 800;
}

.detail-grid-section dd {
  margin: 0;
  color: var(--muted);
}

.detail-video-section {
  padding: 0 clamp(18px, 5vw, 64px) clamp(56px, 8vw, 98px);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.video-grid.single-video {
  grid-template-columns: minmax(260px, min(100%, 1070px));
  justify-content: center;
}

.video-card {
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
}

.video-card video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #101411;
  display: block;
}

.video-card div {
  padding: 18px;
}

.video-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.video-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(8, 12, 10, 0.92);
  display: grid;
  place-items: center;
  padding: clamp(14px, 3vw, 42px);
  touch-action: pan-y;
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox img {
  width: min(100%, 1040px);
  max-height: 88vh;
  object-fit: contain;
  background: #f7f8f6;
}

.lightbox-close {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 83;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  font-size: 34px;
  cursor: pointer;
}

.lightbox-side {
  position: fixed;
  top: 0;
  bottom: 0;
  z-index: 82;
  width: 34%;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.lightbox-prev {
  left: 0;
}

.lightbox-next {
  right: 0;
}

.lightbox-side::before {
  position: absolute;
  top: 50%;
  width: 52px;
  height: 64px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
  font-size: 46px;
  transform: translateY(-50%);
}

.lightbox-prev::before {
  content: "\2039";
  left: 18px;
}

.lightbox-next::before {
  content: "\203A";
  right: 18px;
}

.lightbox-counter {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
  font-weight: 800;
}

body.lightbox-open {
  overflow: hidden;
}

.compare-intro {
  padding-bottom: 28px;
}

.compare-content {
  padding: 0 clamp(18px, 5vw, 64px) clamp(56px, 8vw, 98px);
}

.empty-compare {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 28px;
}

.compare-table-wrap {
  overflow-x: auto;
  background: var(--white);
  border: 1px solid var(--line);
}

.mobile-scroll-hint {
  display: none;
  margin: 0 0 10px;
  padding: 12px 14px;
  background: #fff7e7;
  border: 1px solid #f0d6a4;
  color: #6f4a11;
  font-weight: 800;
}

.compare-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  border: 1px solid var(--line);
  padding: 16px;
  vertical-align: top;
  text-align: left;
  line-height: 1.5;
}

.compare-table thead th {
  background: #eef3ef;
}

.compare-table th:first-child {
  width: 170px;
}

.compare-table img {
  width: 140px;
  height: 110px;
  object-fit: contain;
  background: #f5f7f5;
  margin-bottom: 10px;
}

.compare-table strong,
.compare-table a {
  display: block;
}

.compare-table a {
  color: var(--green);
  font-weight: 800;
  margin-top: 8px;
}

@media (max-width: 1060px) {
  .solution-grid,
  .product-grid,
  .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .package-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: min(430px, calc(56svh - 20px));
  }
}

@media (max-width: 760px) {
  .mobile-nav {
    position: static;
  }

  .mobile-nav .site-nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 76px;
    z-index: 100;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 18px 18px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

  .mobile-nav[open] .site-nav {
    display: flex;
  }

  .site-nav a {
    min-height: 44px;
  }

  .brand small {
    display: none;
  }

  .hero-copy {
    min-height: min(390px, calc(56svh - 76px));
    justify-content: flex-end;
    padding-top: 42px;
    padding-bottom: 24px;
  }

  h1 {
    font-size: 36px;
    line-height: 1.02;
  }

  .hero-copy p:not(.eyebrow) {
    font-size: 16px;
    line-height: 1.55;
  }

  .hero-media::after {
    background:
      linear-gradient(0deg, rgba(9, 16, 13, 0.74), rgba(9, 16, 13, 0.4) 48%, rgba(9, 16, 13, 0.1)),
      linear-gradient(90deg, rgba(9, 16, 13, 0.26), rgba(9, 16, 13, 0.04));
  }

  .hero-note {
    display: none;
  }

  .quick-intent {
    margin-top: 16px;
  }

  .quick-intent span {
    width: 100%;
  }

  .proof-strip,
  .section-head,
  .purpose-card-grid,
  .quality-band,
  .quote-section,
  .calculator-layout,
  .product-detail-hero,
  .detail-grid-section,
  #dialogBody {
    grid-template-columns: 1fr;
  }

  .proof-strip article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .solution-grid,
  .product-grid,
  .guide-grid,
  .article-grid,
  .quality-list,
  .calc-summary {
    grid-template-columns: 1fr;
  }

  .terrain-images {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .toolbar,
  .compare-bar,
  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-panel {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }

  .contact-panel p {
    font-size: 16px;
  }

  .contact-actions {
    display: grid;
    gap: 8px;
  }

  .contact-actions a {
    min-height: 44px;
  }

  .search-label {
    justify-content: space-between;
    min-width: 100%;
  }

  .article-section .section-head h2 {
    white-space: normal;
  }

  .article-card img {
    height: auto;
    object-fit: contain;
  }

  .mobile-scroll-hint {
    display: block;
  }

  .detail-image-nav {
    width: 38px;
    height: 50px;
    font-size: 36px;
  }

  .detail-gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .video-grid.single-video {
    grid-template-columns: 1fr;
  }

  .video-card video {
    aspect-ratio: 1;
  }

  .lightbox-side {
    width: 42%;
  }

  .lightbox-side::before {
    width: 42px;
    height: 54px;
    font-size: 38px;
  }

  #dialogBody > img {
    min-height: 280px;
  }
}