:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --ink: #15201d;
  --muted: #66736f;
  --line: #dce3de;
  --panel: #ffffff;
  --panel-soft: #eef4ef;
  --accent: #f2b230;
  --accent-strong: #d88a14;
  --green: #1f6b4f;
  --blue: #1f4f7a;
  --shadow: 0 24px 70px rgba(21, 32, 29, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

svg {
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 0 clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(220, 227, 222, 0.8);
  background: rgba(246, 247, 244, 0.88);
  backdrop-filter: blur(18px);
}

.brand,
.form-title,
.proof-strip,
.hero-actions,
.contact-actions,
.plan-head {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-size: 1.22rem;
  font-weight: 850;
}

.brand-mark,
.icon-shell,
.empty-icon {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--ink);
  color: var(--accent);
}

.main-nav {
  display: flex;
  gap: clamp(16px, 3vw, 34px);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--ink);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 850;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.header-cta {
  min-width: 104px;
  padding: 12px 18px;
  background: var(--ink);
  color: #fff;
}

.button {
  min-height: 48px;
  padding: 14px 22px;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.primary {
  background: var(--accent);
  color: #1d1608;
  box-shadow: 0 12px 28px rgba(242, 178, 48, 0.28);
}

.primary:hover,
.primary:focus-visible {
  background: #ffc849;
}

.secondary {
  border-color: rgba(21, 32, 29, 0.16);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
}

.full {
  width: 100%;
}

.hero {
  position: relative;
  display: grid;
  min-height: calc(100svh - 260px);
  align-items: center;
  overflow: hidden;
  padding: clamp(42px, 5vw, 60px) clamp(18px, 5vw, 72px);
  background: #101815;
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 20, 18, 0.93) 0%, rgba(13, 20, 18, 0.78) 38%, rgba(13, 20, 18, 0.16) 82%),
    linear-gradient(0deg, rgba(13, 20, 18, 0.55), transparent 42%),
    url("assets/teneflow-hero.webp") center / cover no-repeat;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  color: #fff;
}

.trust-line,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 850;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.contact-section h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 780px;
  font-size: clamp(2.55rem, 5.6vw, 4.9rem);
}

.hero-copy {
  max-width: 650px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.06rem, 1.8vw, 1.3rem);
  line-height: 1.6;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.proof-strip {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.proof-strip span {
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9rem;
  font-weight: 750;
}

section:not(.hero) {
  padding: clamp(70px, 9vw, 116px) clamp(18px, 5vw, 72px);
}

section[id] {
  scroll-margin-top: 88px;
}

.section-heading {
  width: min(790px, 100%);
  margin: 0 auto 44px;
  text-align: center;
}

.section-heading.compact {
  margin-bottom: 30px;
}

.section-heading h2,
.contact-section h2 {
  font-size: clamp(2.05rem, 4vw, 4.1rem);
}

.section-heading p:not(.section-kicker) {
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.5fr);
  gap: clamp(22px, 4vw, 48px);
  width: min(1180px, 100%);
  margin: 0 auto;
  align-items: start;
}

.calculator-card,
.results-panel,
.trust-grid article,
.process-list article {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.calculator-card {
  position: sticky;
  top: 98px;
  padding: 26px;
  border-radius: 8px;
}

.form-title {
  gap: 12px;
  margin-bottom: 22px;
}

.form-title h3,
.empty-state h3,
.trust-grid h3,
.process-list h3 {
  margin: 0;
  font-size: 1.28rem;
}

.icon-shell,
.empty-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--panel-soft);
  color: var(--green);
  font-size: 1.28rem;
}

label {
  display: block;
  margin-top: 18px;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 800;
}

input {
  width: 100%;
  min-height: 54px;
  margin-top: 8px;
  padding: 0 16px;
  border: 1px solid #cdd7d1;
  border-radius: 8px;
  background: #fbfcfb;
  color: var(--ink);
  font: inherit;
  font-size: 1.08rem;
  font-weight: 750;
}

select {
  width: 100%;
  min-height: 54px;
  margin-top: 8px;
  padding: 0 16px;
  border: 1px solid #cdd7d1;
  border-radius: 8px;
  background: #fbfcfb;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 750;
}

input:focus {
  border-color: var(--green);
  outline: 3px solid rgba(31, 107, 79, 0.16);
}

select:focus {
  border-color: var(--green);
  outline: 3px solid rgba(31, 107, 79, 0.16);
}

.form-note {
  margin: 20px 0;
  padding: 14px;
  border: 1px solid #c9dfd3;
  border-radius: 8px;
  background: #edf7f1;
  color: #33584a;
  font-size: 0.92rem;
  line-height: 1.5;
}

.results-panel {
  min-height: 420px;
  padding: 22px;
  border-radius: 8px;
  scroll-margin-top: 96px;
}

.empty-state {
  display: grid;
  min-height: 374px;
  place-items: center;
  align-content: center;
  text-align: center;
  color: var(--muted);
}

.empty-state h3 {
  margin-top: 18px;
  color: var(--ink);
}

.empty-state p {
  max-width: 410px;
  line-height: 1.55;
}

.analysis-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid #f0d290;
  border-radius: 8px;
  background: #fff6df;
}

.analysis-summary strong {
  display: block;
  margin-top: 6px;
  font-size: clamp(1.25rem, 2.2vw, 1.95rem);
  line-height: 1.05;
}

.result-note {
  margin-bottom: 18px;
  padding: 14px 16px;
  border: 1px solid #c9dfd3;
  border-radius: 8px;
  background: #edf7f1;
  color: #33584a;
  font-size: 0.93rem;
  line-height: 1.5;
}

.panel-comparison {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.panel-comparison h3 {
  margin: 6px 0 0;
  font-size: 1.18rem;
}

.mini-kicker {
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.panel-option-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.panel-option-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf8;
}

.panel-option-card.active {
  border-color: var(--accent-strong);
  background: #fff6df;
  box-shadow: 0 16px 34px rgba(216, 138, 20, 0.13);
}

.panel-option-card span {
  color: var(--green);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.panel-option-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.25rem;
  line-height: 1.1;
}

.panel-option-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.panel-quote-button {
  min-height: 42px;
  margin-top: 4px;
  padding: 0 14px;
  border: 1px solid #cdd7d1;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 900;
}

.panel-option-card.active .panel-quote-button {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.advisor-result {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid #d6e1db;
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
  line-height: 1.55;
}

.advisor-result strong {
  color: var(--ink);
}

.advisor-result span {
  font-size: 0.9rem;
}

.anker-kit-note {
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid #f0d290;
  border-radius: 8px;
  background: #fff6df;
  color: #574118;
  font-size: 0.94rem;
  line-height: 1.55;
}

.anker-kit-note strong {
  color: var(--ink);
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.plan-actions {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 10px;
  margin-top: auto;
}

.financing-calculator {
  display: grid;
  gap: 18px;
  margin-top: 18px;
  padding: 22px;
  border: 1px solid #c9dfd3;
  border-radius: 8px;
  background: linear-gradient(180deg, #f7fbf8, #ffffff);
  box-shadow: 0 18px 46px rgba(21, 32, 29, 0.08);
}

.finance-copy h3 {
  margin: 8px 0 8px;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.08;
}

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

.finance-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(120px, 0.6fr) minmax(0, 1fr);
  gap: 14px;
}

.finance-grid label {
  margin-top: 0;
}

.finance-output {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.finance-output div {
  min-height: 96px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.finance-output span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.finance-output strong {
  display: block;
  margin-top: 8px;
  color: var(--green);
  font-size: clamp(1.25rem, 2.4vw, 1.85rem);
  line-height: 1;
}

.finance-output p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.5;
}

.plan-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.plan-card.recommended {
  border-color: var(--accent-strong);
  box-shadow: 0 20px 44px rgba(216, 138, 20, 0.16);
}

.plan-head {
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.plan-head strong {
  color: var(--accent-strong);
  font-size: 1.25rem;
}

.plan-tag {
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--panel-soft);
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.plan-card.recommended .plan-tag {
  background: #fff0c9;
  color: #8a5600;
}

.plan-card h3 {
  margin: 0 0 12px;
  font-size: 1.22rem;
}

.price {
  margin: 0 0 14px;
  font-size: 1.7rem;
  font-weight: 900;
}

.plan-copy,
.spec-list {
  color: var(--muted);
  line-height: 1.5;
}

.plan-copy {
  flex: 1;
  margin: 0 0 18px;
}

.payment-line {
  margin: 0 0 18px;
  padding: 11px 12px;
  border-radius: 8px;
  background: #edf7f1;
  color: #315647;
  font-size: 0.93rem;
  font-weight: 850;
  line-height: 1.35;
}

.spec-list {
  display: grid;
  gap: 9px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-size: 0.93rem;
}

.spec-list strong {
  color: var(--ink);
}

.product-explorer,
.client-infographic,
.advisor-section,
.explain-section,
.catalog-section {
  background: #fff;
}

.product-explorer {
  background: #eaf1ed;
}

.client-infographic {
  padding-top: clamp(54px, 6vw, 76px) !important;
  padding-bottom: clamp(58px, 7vw, 84px) !important;
}

.client-infographic .section-heading {
  margin-bottom: 28px;
}

.client-infographic .section-heading h2 {
  font-size: clamp(2rem, 3.4vw, 3.45rem);
  line-height: 1.05;
}

.energy-flow,
.solar-map,
.equipment-grid,
.decision-grid,
.product-grid,
.catalog-grid,
.faq-list {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.product-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  width: min(1180px, 100%);
  margin: -18px auto 28px;
}

.filter-button {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid #cdd7d1;
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 850;
}

.filter-button.active,
.filter-button:hover,
.filter-button:focus-visible {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.official-source-note {
  width: min(860px, 100%);
  margin: -10px auto 28px;
  color: #53635e;
  font-size: 0.94rem;
  line-height: 1.55;
  text-align: center;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 55px rgba(21, 32, 29, 0.1);
}

.product-media {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1 / 1;
  margin: 0;
  overflow: hidden;
  border: 1px solid #e2e9e4;
  border-radius: 8px;
  background: linear-gradient(180deg, #f8faf8, #eef4ef);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  filter: drop-shadow(0 18px 24px rgba(21, 32, 29, 0.12));
}

.product-media-portrait img {
  padding: 20px;
}

.product-media-portrait {
  aspect-ratio: 4 / 5;
}

.product-card[hidden] {
  display: none;
}

.product-icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--accent);
  font-size: 1.5rem;
}

.product-card p:first-of-type {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.product-card h3 {
  margin: 0;
  font-size: 1.35rem;
}

.product-card strong {
  color: var(--green);
}

.product-card ul {
  display: grid;
  gap: 8px;
  margin: 2px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.solar-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.solar-map article {
  position: relative;
  min-height: 190px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f5f8f6);
  box-shadow: 0 18px 50px rgba(21, 32, 29, 0.08);
}

.solar-map article::after {
  content: "";
  position: absolute;
  right: -17px;
  top: 52px;
  width: 34px;
  height: 2px;
  background: var(--accent);
}

.solar-map article:last-child::after {
  display: none;
}

.map-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--accent);
  font-size: 1.8rem;
}

.solar-map h3 {
  margin: 18px 0 10px;
  font-size: 1.25rem;
}

.solar-map p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.decision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.decision-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f6f7f4;
}

.decision-grid span,
.catalog-brand {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.decision-grid h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.decision-grid p,
.decision-grid strong,
.catalog-grid p,
.catalog-grid li,
.payment-copy p,
.payment-grid p {
  color: var(--muted);
  line-height: 1.6;
}

.decision-grid strong {
  display: block;
  margin-top: 18px;
  color: var(--ink);
}

.energy-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: flow;
}

.energy-flow article {
  position: relative;
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f4f8f5);
  box-shadow: 0 18px 50px rgba(21, 32, 29, 0.08);
}

.energy-flow article::after {
  content: "";
  position: absolute;
  right: -15px;
  top: 50%;
  width: 28px;
  height: 1px;
  background: var(--line);
}

.energy-flow article:last-child::after {
  display: none;
}

.energy-flow span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--accent);
  font-weight: 900;
}

.energy-flow h3,
.equipment-card h3 {
  margin: 18px 0 10px;
  font-size: 1.3rem;
}

.energy-flow p,
.equipment-card p,
.equipment-card li,
.panel-copy p,
.spec-board p,
.faq-list p {
  color: var(--muted);
  line-height: 1.6;
}

.equipment-section {
  background: #eaf1ed;
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.equipment-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 55px rgba(21, 32, 29, 0.1);
}

.equipment-card.featured {
  background: var(--ink);
  color: #fff;
}

.equipment-card.accent-card {
  border-color: #f0d290;
  background: #fff6df;
}

.equipment-card.featured p,
.equipment-card.featured li {
  color: rgba(255, 255, 255, 0.76);
}

.card-label {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.equipment-card.featured .card-label {
  color: var(--accent);
}

.equipment-card ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding-left: 18px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.catalog-grid article {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 46px rgba(21, 32, 29, 0.08);
}

.catalog-grid h3 {
  margin: 0 0 12px;
  font-size: 1.28rem;
}

.catalog-grid ul {
  display: grid;
  gap: 9px;
  margin: 18px 0 0;
  padding-left: 18px;
}

.payment-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(26px, 5vw, 70px);
  align-items: start;
  background: #eaf1ed;
}

.payment-copy h2 {
  margin: 0;
  font-size: clamp(2.05rem, 4vw, 4.1rem);
  line-height: 1;
}

.payment-grid {
  display: grid;
  gap: 14px;
}

.payment-grid article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.payment-grid h3 {
  margin: 0 0 8px;
}

.panels-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(26px, 5vw, 70px);
  align-items: center;
  background: #fff;
}

.panel-copy h2 {
  margin: 0;
  font-size: clamp(2.05rem, 4vw, 4.1rem);
  line-height: 1;
}

.spec-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.spec-board div {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f6f7f4;
}

.spec-board span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.spec-board strong {
  display: block;
  margin-top: 10px;
  color: var(--green);
  font-size: clamp(1.75rem, 3vw, 2.7rem);
  line-height: 1;
}

.trust-section {
  background: #fff;
}

.trust-grid,
.process-list {
  display: grid;
  width: min(1180px, 100%);
  margin: 0 auto;
  gap: 18px;
}

.trust-grid {
  grid-template-columns: repeat(3, 1fr);
}

.trust-grid article,
.process-list article {
  border-radius: 8px;
  padding: 26px;
}

.trust-grid h3 {
  margin-top: 20px;
}

.trust-grid p,
.process-list p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.process-section {
  background: #eaf1ed;
}

.process-list {
  grid-template-columns: repeat(4, 1fr);
}

.process-list article {
  box-shadow: none;
}

.process-list span {
  color: var(--accent-strong);
  font-size: 0.86rem;
  font-weight: 900;
}

.warranty-section {
  background: #fff;
}

.warranty-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.4fr);
  gap: 18px;
  width: min(1180px, 100%);
  margin: 0 auto;
  align-items: stretch;
}

.warranty-graphic {
  display: grid;
  gap: 12px;
  padding: 24px;
  border: 1px solid #c9dfd3;
  border-radius: 8px;
  background:
    linear-gradient(160deg, rgba(242, 178, 48, 0.2), transparent 38%),
    linear-gradient(180deg, #10201a, #1f6b4f);
  color: #fff;
  box-shadow: var(--shadow);
}

.warranty-graphic div {
  min-height: 116px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.warranty-graphic span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.warranty-graphic strong {
  display: block;
  margin-top: 12px;
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  line-height: 1.05;
}

.warranty-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.warranty-grid article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf8;
}

.warranty-grid h3 {
  margin: 18px 0 10px;
  font-size: 1.22rem;
}

.warranty-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.faq-section {
  background: #fff;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbf9;
}

.faq-list summary {
  cursor: pointer;
  padding: 20px 22px;
  color: var(--ink);
  font-weight: 900;
}

.faq-list p {
  margin: 0;
  padding: 0 22px 22px;
}

.contact-section {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: center;
  background: var(--ink);
  color: #fff;
}

.contact-section .section-kicker {
  color: var(--accent);
}

.contact-section h2 {
  max-width: 760px;
}

.contact-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 30px clamp(18px, 5vw, 72px);
  background: #0d1412;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.9rem;
}

.whatsapp-float {
  position: fixed;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 10px 16px 10px 10px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  background: #1fae63;
  color: #fff;
  box-shadow: 0 18px 44px rgba(21, 32, 29, 0.24);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: translateY(-3px);
  background: #169856;
  box-shadow: 0 22px 54px rgba(21, 32, 29, 0.28);
}

.whatsapp-float span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  font-size: 1.4rem;
}

.whatsapp-float strong {
  font-size: 0.96rem;
}

@media (max-width: 980px) {
  .main-nav {
    display: none;
  }

  .calculator-layout,
  .plans-grid,
  .plan-actions,
  .panel-option-grid,
  .finance-grid,
  .finance-output,
  .trust-grid,
  .process-list,
  .energy-flow,
  .solar-map,
  .equipment-grid,
  .decision-grid,
  .product-grid,
  .catalog-grid,
  .warranty-layout,
  .warranty-grid,
  .payment-section,
  .panels-section {
    grid-template-columns: 1fr;
  }

  .analysis-summary {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .calculator-card {
    position: static;
  }

  .energy-flow article {
    min-height: auto;
  }

  .energy-flow article::after,
  .solar-map article::after {
    display: none;
  }

  .contact-section,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .finance-output p {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 66px;
  }

  .brand {
    font-size: 1.05rem;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .header-cta {
    min-width: 86px;
    padding: 10px 14px;
  }

  .hero {
    min-height: calc(100svh - 190px);
    align-items: start;
    padding-top: 52px;
    padding-bottom: 24px;
  }

  .hero h1 {
    font-size: clamp(2.25rem, 10.5vw, 2.8rem);
    line-height: 1.03;
  }

  .hero-copy {
    margin-top: 20px;
    font-size: 1rem;
  }

  .hero-actions {
    margin-top: 26px;
  }

  .proof-strip {
    display: none;
  }

  .hero-media {
    background:
      linear-gradient(180deg, rgba(13, 20, 18, 0.92) 0%, rgba(13, 20, 18, 0.78) 58%, rgba(13, 20, 18, 0.42) 100%),
      url("assets/teneflow-hero.webp") 58% center / cover no-repeat;
  }

  .button {
    width: 100%;
  }

  .whatsapp-float {
    right: 14px;
    bottom: 14px;
    min-height: 52px;
    padding-right: 12px;
  }

  .whatsapp-float span {
    width: 36px;
    height: 36px;
  }

  .whatsapp-float strong {
    font-size: 0.88rem;
  }

  .analysis-summary {
    padding: 16px;
  }

  .analysis-summary strong {
    font-size: 1.45rem;
  }

  .spec-board {
    grid-template-columns: 1fr;
  }

  .equipment-card,
  .trust-grid article,
  .process-list article,
  .energy-flow article,
  .solar-map article,
  .spec-board div,
  .warranty-grid article,
  .warranty-graphic {
    padding: 22px;
  }
}