:root {
  --color-navy-950: #081927;
  --color-navy-900: #0d2233;
  --color-navy-850: #112b3f;
  --color-navy-800: #16354a;
  --color-blue-700: #1b5f83;
  --color-blue-600: #237aa4;
  --color-blue-500: #2f95c1;
  --color-blue-100: #e9f5fa;
  --color-blue-50: #f4fafc;

  --color-gold-600: #d89c19;
  --color-gold-500: #efb936;
  --color-gold-400: #f5cb68;
  --color-gold-100: #fff3cf;
  --color-gold-50: #fff9e9;

  --color-green-700: #17684d;
  --color-green-600: #218162;
  --color-green-500: #2f9a76;
  --color-green-100: #e4f5ee;
  --color-green-50: #f2faf7;

  --color-red-600: #b84d4d;
  --color-red-100: #fdeaea;

  --color-white: #ffffff;
  --color-surface: #f6f8fa;
  --color-surface-warm: #fbfaf6;
  --color-border: #dce4e9;
  --color-border-dark: #c9d4dc;

  --color-text: #1a2b37;
  --color-text-soft: #5d6d78;
  --color-text-light: #7a8992;

  --shadow-soft: 0 12px 30px rgba(19, 46, 63, 0.08);
  --shadow-card: 0 18px 45px rgba(15, 42, 60, 0.1);
  --shadow-deep: 0 28px 70px rgba(4, 23, 36, 0.2);

  --radius-small: 10px;
  --radius-medium: 16px;
  --radius-large: 22px;
  --radius-xl: 30px;

  --container-width: 1460px;
  --transition: 180ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top left, rgba(239, 185, 54, 0.05), transparent 28%),
    var(--color-surface);
  color: var(--color-text);
  font-family:
    Inter,
    ui-sans-serif,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button,
label,
select,
input[type="radio"],
input[type="checkbox"] {
  cursor: pointer;
}

input,
select,
button {
  outline: none;
}

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

fieldset {
  min-width: 0;
}

.site-shell {
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  width: min(calc(100% - 40px), var(--container-width));
  margin-inline: auto;
}

/* Hero */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 78px 0 86px;
  background:
    linear-gradient(120deg, rgba(8, 25, 39, 0.98), rgba(16, 52, 74, 0.97)),
    var(--color-navy-950);
  color: var(--color-white);
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -8% -44% auto;
  z-index: -2;
  width: 520px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow:
    0 0 0 70px rgba(255, 255, 255, 0.025),
    0 0 0 140px rgba(255, 255, 255, 0.018);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to right, black, transparent 75%);
}

.hero__glow {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(8px);
  pointer-events: none;
}

.hero__glow--one {
  top: -110px;
  left: -120px;
  width: 360px;
  height: 360px;
  background: rgba(239, 185, 54, 0.16);
}

.hero__glow--two {
  right: 12%;
  bottom: -180px;
  width: 480px;
  height: 480px;
  background: rgba(47, 149, 193, 0.17);
}

.hero__container {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(380px, 0.65fr);
  align-items: center;
  gap: 76px;
}

.hero__content {
  max-width: 820px;
}

.hero__eyebrow,
.section-kicker,
.form-card__eyebrow,
.results-panel__eyebrow,
.result-card__eyebrow,
.nested-form-panel__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  color: var(--color-gold-400);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__eyebrow {
  padding: 8px 13px;
  border: 1px solid rgba(245, 203, 104, 0.26);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.hero__eyebrow-icon {
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: rgba(245, 203, 104, 0.15);
  color: var(--color-gold-400);
  font-size: 0.9rem;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.hero__description {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 13px 22px;
  margin-top: 32px;
}

.hero-highlight {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-highlight__icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(47, 154, 118, 0.2);
  color: #8ce4bf;
  font-size: 0.73rem;
}

.hero__visual {
  display: flex;
  justify-content: flex-end;
}

.solar-visual {
  position: relative;
  width: min(100%, 440px);
  min-height: 390px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 32px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.035)),
    rgba(7, 24, 37, 0.38);
  box-shadow: var(--shadow-deep);
  backdrop-filter: blur(14px);
}

.solar-visual::before {
  content: "";
  position: absolute;
  inset: 26px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 24px;
}

.solar-visual__sun {
  position: absolute;
  top: 34px;
  right: 40px;
  display: grid;
  place-items: center;
  width: 86px;
  height: 86px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--color-gold-400), var(--color-gold-600));
  box-shadow:
    0 0 0 15px rgba(245, 203, 104, 0.08),
    0 0 50px rgba(245, 203, 104, 0.3);
  color: var(--color-navy-950);
  font-size: 2.35rem;
}

.solar-visual__panel {
  position: absolute;
  left: 48px;
  bottom: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  width: 275px;
  height: 178px;
  padding: 12px;
  transform: perspective(700px) rotateX(8deg) rotateY(-8deg) rotateZ(-2deg);
  border: 3px solid #7aaac1;
  border-radius: 12px;
  background: #102d42;
  box-shadow: 0 24px 40px rgba(2, 15, 24, 0.35);
}

.solar-visual__panel::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -35px;
  width: 120px;
  height: 38px;
  transform: translateX(-50%);
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
  border-top: 34px solid rgba(159, 185, 198, 0.65);
  filter: drop-shadow(0 8px 8px rgba(0, 0, 0, 0.22));
}

.solar-visual__panel-grid {
  border: 1px solid rgba(136, 199, 227, 0.4);
  border-radius: 3px;
  background:
    linear-gradient(90deg, transparent 49%, rgba(255, 255, 255, 0.13) 50%, transparent 51%),
    linear-gradient(transparent 49%, rgba(255, 255, 255, 0.13) 50%, transparent 51%),
    linear-gradient(145deg, #1d5878, #12364e);
  background-size: 100% 100%, 100% 100%, auto;
}

.solar-visual__stat {
  position: absolute;
  min-width: 156px;
  padding: 14px 17px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 14px;
  background: rgba(8, 28, 42, 0.84);
  box-shadow: 0 14px 32px rgba(2, 15, 24, 0.24);
  backdrop-filter: blur(10px);
}

.solar-visual__stat--top {
  top: 130px;
  left: 30px;
}

.solar-visual__stat--bottom {
  right: 28px;
  bottom: 30px;
}

.solar-visual__stat-label {
  display: block;
  color: rgba(255, 255, 255, 0.53);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.solar-visual__stat strong {
  display: block;
  margin-top: 3px;
  color: var(--color-white);
  font-size: 0.9rem;
}

/* Main content */

.main-content {
  padding: 42px 0 70px;
}

.intro-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  margin: -76px 0 32px;
  padding: 31px 34px;
  position: relative;
  z-index: 5;
  border: 1px solid rgba(213, 224, 230, 0.86);
  border-radius: var(--radius-large);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-card);
}

.intro-panel__content {
  max-width: 860px;
}

.section-kicker {
  margin-bottom: 8px;
  color: var(--color-blue-700);
}

.intro-panel h2,
.form-card h2,
.results-panel h2,
.information-card h2,
.disclaimer h2 {
  margin: 0;
  color: var(--color-navy-900);
  letter-spacing: -0.025em;
}

.intro-panel h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.15rem);
}

.intro-panel p {
  margin: 10px 0 0;
  color: var(--color-text-soft);
  line-height: 1.75;
}

.intro-panel__badge {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 270px;
  padding: 17px 19px;
  border: 1px solid #dce9ee;
  border-radius: var(--radius-medium);
  background: var(--color-blue-50);
}

.intro-panel__badge-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: var(--color-navy-900);
  color: var(--color-gold-400);
  font-size: 1.2rem;
}

.intro-panel__badge span:not(.intro-panel__badge-icon) {
  display: block;
  color: var(--color-blue-700);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro-panel__badge strong {
  display: block;
  margin-top: 2px;
  color: var(--color-navy-900);
  font-size: 0.89rem;
}

/* Layout */

.estimator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(400px, 0.7fr);
  align-items: start;
  gap: 30px;
}

.form-column,
.results-column {
  min-width: 0;
}

.form-card {
  margin-bottom: 24px;
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.form-card__header {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 18px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e6ecef;
}

.form-card__number {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid #d5e6ec;
  border-radius: 15px;
  background: linear-gradient(145deg, #f5fbfd, #e8f3f7);
  color: var(--color-blue-700);
  font-size: 0.87rem;
  font-weight: 900;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.form-card__eyebrow {
  margin-bottom: 4px;
  color: var(--color-blue-700);
}

.form-card h2 {
  font-size: 1.48rem;
}

.form-card__header p {
  margin: 7px 0 0;
  color: var(--color-text-soft);
  font-size: 0.94rem;
  line-height: 1.65;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.form-group {
  min-width: 0;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label,
.form-group > label,
fieldset legend {
  display: block;
  margin-bottom: 8px;
  color: var(--color-navy-900);
  font-size: 0.86rem;
  font-weight: 800;
}

.required-indicator {
  color: var(--color-red-600);
}

input[type="number"],
input[type="text"],
select {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--color-border-dark);
  border-radius: 12px;
  background: var(--color-white);
  color: var(--color-text);
  font-weight: 650;
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

input[type="number"],
input[type="text"] {
  padding: 12px 14px;
}

select {
  padding: 12px 42px 12px 14px;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-blue-700) 50%),
    linear-gradient(135deg, var(--color-blue-700) 50%, transparent 50%);
  background-position:
    calc(100% - 19px) 21px,
    calc(100% - 14px) 21px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

input:hover,
select:hover {
  border-color: #aebec8;
}

input:focus,
select:focus {
  border-color: var(--color-blue-600);
  box-shadow: 0 0 0 4px rgba(35, 122, 164, 0.11);
}

input[readonly] {
  cursor: default;
  background: #f3f6f8;
  color: var(--color-text-soft);
}

.input-with-prefix,
.input-with-suffix {
  display: flex;
  align-items: stretch;
  overflow: hidden;
  min-height: 50px;
  border: 1px solid var(--color-border-dark);
  border-radius: 12px;
  background: var(--color-white);
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

.input-with-prefix:focus-within,
.input-with-suffix:focus-within {
  border-color: var(--color-blue-600);
  box-shadow: 0 0 0 4px rgba(35, 122, 164, 0.11);
}

.input-with-prefix input,
.input-with-suffix input {
  min-width: 0;
  min-height: 48px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.input-with-prefix input:focus,
.input-with-suffix input:focus {
  box-shadow: none;
}

.input-prefix,
.input-suffix {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0 14px;
  background: #f0f4f6;
  color: var(--color-text-soft);
  font-size: 0.82rem;
  font-weight: 800;
}

.input-prefix {
  border-right: 1px solid var(--color-border);
}

.input-suffix {
  border-left: 1px solid var(--color-border);
}

.input-readonly {
  background: #f3f6f8;
}

.field-help {
  display: block;
  margin-top: 7px;
  color: var(--color-text-light);
  font-size: 0.76rem;
  line-height: 1.5;
}

/* Segmented controls */

.segmented-fieldset,
.choice-card-fieldset,
.checkbox-fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 5px;
  border: 1px solid var(--color-border);
  border-radius: 15px;
  background: #f2f5f7;
}

.segmented-option {
  position: relative;
}

.segmented-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented-option > span {
  display: block;
  min-height: 76px;
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  transition:
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.segmented-option:hover > span {
  background: rgba(255, 255, 255, 0.65);
}

.segmented-option input:checked + span {
  border-color: #d0e3eb;
  background: var(--color-white);
  box-shadow: 0 8px 20px rgba(18, 55, 76, 0.08);
}

.segmented-option strong {
  display: block;
  color: var(--color-navy-900);
  font-size: 0.88rem;
}

.segmented-option small {
  display: block;
  margin-top: 4px;
  color: var(--color-text-soft);
  font-size: 0.74rem;
}

/* Choice cards */

.choice-card-grid {
  display: grid;
  gap: 14px;
}

.choice-card-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.choice-card-grid--four {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.choice-card {
  position: relative;
}

.choice-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice-card__body {
  display: block;
  height: 100%;
  min-height: 155px;
  padding: 19px;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  background: var(--color-white);
  box-shadow: 0 7px 18px rgba(18, 55, 76, 0.045);
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    background var(--transition);
}

.choice-card:hover .choice-card__body {
  transform: translateY(-2px);
  border-color: #b9ced8;
  box-shadow: 0 12px 24px rgba(18, 55, 76, 0.08);
}

.choice-card input:checked + .choice-card__body {
  border-color: var(--color-blue-600);
  background:
    linear-gradient(145deg, rgba(47, 149, 193, 0.055), rgba(255, 255, 255, 0.95)),
    var(--color-white);
  box-shadow:
    0 0 0 3px rgba(35, 122, 164, 0.1),
    0 14px 28px rgba(18, 55, 76, 0.09);
}

.choice-card__topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 9px;
}

.choice-card strong {
  display: block;
  color: var(--color-navy-900);
  font-size: 0.9rem;
}

.choice-card__tag {
  flex: 0 0 auto;
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--color-gold-100);
  color: #8f640b;
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.choice-card__metric {
  display: block;
  margin-top: 13px;
  color: var(--color-blue-700);
  font-size: 0.77rem;
  font-weight: 800;
}

.choice-card small {
  display: block;
  margin-top: 8px;
  color: var(--color-text-soft);
  font-size: 0.74rem;
  line-height: 1.5;
}

.choice-card--compact .choice-card__body {
  min-height: 105px;
  padding: 17px;
}

.choice-card--compact small {
  margin-top: 5px;
}

/* Checkbox cards */

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px;
}

.checkbox-option {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 13px;
  align-items: start;
  min-height: 112px;
  padding: 17px;
  border: 1px solid var(--color-border);
  border-radius: 15px;
  background: var(--color-white);
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition),
    background var(--transition);
}

.checkbox-option:hover {
  transform: translateY(-1px);
  border-color: #bdced7;
  box-shadow: 0 10px 22px rgba(18, 55, 76, 0.07);
}

.checkbox-option:has(input:checked) {
  border-color: var(--color-green-500);
  background: var(--color-green-50);
  box-shadow: 0 0 0 3px rgba(47, 154, 118, 0.09);
}

.checkbox-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox-option__control {
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  margin-top: 1px;
  border: 1px solid #b9c9d1;
  border-radius: 7px;
  background: var(--color-white);
  transition:
    background var(--transition),
    border-color var(--transition);
}

.checkbox-option__check {
  opacity: 0;
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 900;
  transform: scale(0.6);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.checkbox-option input:checked + .checkbox-option__control {
  border-color: var(--color-green-600);
  background: var(--color-green-600);
}

.checkbox-option input:checked
  + .checkbox-option__control
  .checkbox-option__check {
  opacity: 1;
  transform: scale(1);
}

.checkbox-option__content strong {
  display: block;
  color: var(--color-navy-900);
  font-size: 0.84rem;
}

.checkbox-option__content small {
  display: block;
  margin-top: 5px;
  color: var(--color-text-soft);
  font-size: 0.73rem;
  line-height: 1.45;
}

/* Messages and nested panel */

.status-message,
.notice-box,
.results-alert {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 13px;
  margin-top: 22px;
  padding: 16px 18px;
  border-radius: 14px;
}

.status-message--info {
  border: 1px solid #cfe3eb;
  background: var(--color-blue-50);
}

.status-message__icon,
.notice-box__icon,
.results-alert__icon {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 900;
}

.status-message__icon,
.results-alert__icon {
  background: var(--color-blue-700);
  color: var(--color-white);
}

.status-message strong,
.notice-box strong,
.results-alert strong {
  display: block;
  color: var(--color-navy-900);
  font-size: 0.84rem;
}

.status-message p,
.notice-box p,
.results-alert p {
  margin: 3px 0 0;
  color: var(--color-text-soft);
  font-size: 0.76rem;
  line-height: 1.55;
}

.notice-box {
  border: 1px solid #ead7a5;
  background: var(--color-gold-50);
}

.notice-box__icon {
  background: var(--color-gold-600);
  color: var(--color-white);
}

.nested-form-panel {
  padding: 22px;
  border: 1px solid #d4e1e7;
  border-radius: 17px;
  background:
    linear-gradient(145deg, rgba(244, 250, 252, 0.9), rgba(255, 255, 255, 0.95)),
    var(--color-white);
}

.nested-form-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.nested-form-panel__eyebrow {
  margin-bottom: 3px;
  color: var(--color-blue-700);
}

.nested-form-panel h3 {
  margin: 0;
  color: var(--color-navy-900);
  font-size: 1rem;
}

.nested-form-panel__icon {
  display: grid;
  place-items: center;
  width: 41px;
  height: 41px;
  border-radius: 13px;
  background: var(--color-navy-900);
  color: var(--color-gold-400);
  font-weight: 900;
}

/* Buttons */

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  padding: 4px 0 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  padding: 12px 21px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.87rem;
  font-weight: 850;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition),
    border-color var(--transition);
}

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

.button:active {
  transform: translateY(0);
}

.button--primary {
  background: linear-gradient(135deg, var(--color-gold-500), var(--color-gold-600));
  color: var(--color-navy-950);
  box-shadow: 0 11px 23px rgba(216, 156, 25, 0.25);
}

.button--primary:hover {
  box-shadow: 0 15px 28px rgba(216, 156, 25, 0.32);
}

.button--secondary {
  border-color: #cbd8df;
  background: var(--color-white);
  color: var(--color-navy-900);
}

.button--secondary:hover {
  border-color: #aebfc9;
  box-shadow: 0 10px 22px rgba(18, 55, 76, 0.09);
}

/* Results panel */

.results-column {
  position: relative;
}

.results-panel {
  position: sticky;
  top: 20px;
  overflow: hidden;
  border: 1px solid #1d3d51;
  border-radius: var(--radius-large);
  background:
    linear-gradient(160deg, #102b3d, #091d2c 75%),
    var(--color-navy-950);
  box-shadow: 0 24px 55px rgba(6, 29, 44, 0.2);
}

.results-panel__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 27px 27px 23px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.results-panel__eyebrow {
  margin-bottom: 4px;
  color: var(--color-gold-400);
}

.results-panel h2 {
  color: var(--color-white);
  font-size: 1.55rem;
}

.results-panel__header p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.78rem;
  line-height: 1.55;
}

.results-panel__status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border: 1px solid rgba(121, 223, 181, 0.18);
  border-radius: 999px;
  background: rgba(47, 154, 118, 0.1);
  color: #8ae2bd;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.results-panel__status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #65d5a9;
  box-shadow: 0 0 0 5px rgba(101, 213, 169, 0.1);
}

.primary-result-card,
.result-card {
  margin: 20px;
  border-radius: 18px;
}

.primary-result-card {
  padding: 23px;
  border: 1px solid rgba(245, 203, 104, 0.2);
  background:
    radial-gradient(circle at top right, rgba(245, 203, 104, 0.1), transparent 42%),
    rgba(255, 255, 255, 0.065);
}

.primary-result-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.result-label {
  display: block;
  color: rgba(255, 255, 255, 0.57);
  font-size: 0.72rem;
  font-weight: 750;
}

.primary-result-card__value {
  display: flex;
  align-items: baseline;
  gap: 7px;
  margin-top: 6px;
}

.primary-result-card__value strong {
  color: var(--color-white);
  font-size: clamp(2.2rem, 5vw, 3.25rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.primary-result-card__value span {
  color: var(--color-gold-400);
  font-size: 0.92rem;
  font-weight: 900;
}

.primary-result-card__icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 17px;
  background: linear-gradient(145deg, var(--color-gold-400), var(--color-gold-600));
  color: var(--color-navy-950);
  font-size: 1.6rem;
  box-shadow: 0 13px 28px rgba(216, 156, 25, 0.22);
}

.solar-offset {
  margin-top: 22px;
}

.solar-offset__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.74rem;
}

.solar-offset__header strong {
  color: var(--color-white);
  font-size: 0.78rem;
}

.progress-track {
  overflow: hidden;
  height: 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
}

.progress-track__fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-gold-600), var(--color-gold-400));
  box-shadow: 0 0 16px rgba(245, 203, 104, 0.3);
  transition: width 300ms ease;
}

.primary-result-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  margin-top: 19px;
}

.mini-metric {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.065);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.mini-metric span {
  display: block;
  color: rgba(255, 255, 255, 0.47);
  font-size: 0.63rem;
  line-height: 1.35;
}

.mini-metric strong {
  display: block;
  margin-top: 5px;
  color: var(--color-white);
  font-size: 0.76rem;
}

.result-card {
  padding: 20px;
  background: var(--color-white);
  box-shadow: 0 12px 24px rgba(1, 16, 26, 0.16);
}

.result-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #e7ecef;
}

.result-card__eyebrow {
  margin-bottom: 2px;
  color: var(--color-blue-700);
  font-size: 0.65rem;
}

.result-card h3 {
  margin: 0;
  color: var(--color-navy-900);
  font-size: 1rem;
}

.result-card__icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--color-blue-100);
  color: var(--color-blue-700);
  font-size: 0.87rem;
  font-weight: 900;
}

.result-list {
  display: grid;
  gap: 0;
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid #edf1f3;
  color: var(--color-text-soft);
  font-size: 0.76rem;
}

.result-row:last-child {
  border-bottom: 0;
}

.result-row strong {
  flex: 0 0 auto;
  color: var(--color-navy-900);
  font-size: 0.78rem;
  text-align: right;
}

.result-row--positive strong {
  color: var(--color-green-700);
}

.result-row--emphasis {
  margin-top: 3px;
  padding-top: 11px;
  font-weight: 800;
}

.result-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 15px;
  padding: 14px 15px;
  border-radius: 12px;
}

.result-total span {
  font-size: 0.75rem;
  font-weight: 850;
}

.result-total strong {
  font-size: 1rem;
  letter-spacing: -0.02em;
  text-align: right;
}

.result-total--dark {
  background: var(--color-navy-900);
  color: var(--color-white);
}

.result-total--green {
  background: var(--color-green-100);
  color: var(--color-green-700);
}

.result-total--gold {
  background: var(--color-gold-100);
  color: #7e5707;
}

.result-total--blue {
  background: var(--color-blue-100);
  color: var(--color-blue-700);
}

.estimate-range {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-top: 11px;
  color: var(--color-text-light);
  font-size: 0.7rem;
}

.estimate-range strong {
  color: var(--color-text-soft);
  font-size: 0.72rem;
  text-align: right;
}

.result-card__note {
  margin: 12px 0 0;
  color: var(--color-text-light);
  font-size: 0.7rem;
  line-height: 1.5;
}

.savings-highlight {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 13px;
  padding: 15px;
  border: 1px solid #dbeae3;
  border-radius: 12px;
  background: var(--color-green-50);
}

.savings-highlight span {
  color: var(--color-green-700);
  font-size: 0.72rem;
  font-weight: 800;
}

.savings-highlight strong {
  color: var(--color-green-700);
  font-size: 1.04rem;
}

.savings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px;
}

.savings-metric,
.impact-metric {
  border: 1px solid #e3e9ec;
  border-radius: 12px;
  background: #fafcfd;
}

.savings-metric {
  padding: 13px;
}

.savings-metric span {
  display: block;
  color: var(--color-text-light);
  font-size: 0.65rem;
}

.savings-metric strong {
  display: block;
  margin-top: 5px;
  color: var(--color-navy-900);
  font-size: 0.78rem;
}

.result-card--impact {
  background:
    linear-gradient(145deg, rgba(242, 250, 247, 0.96), rgba(255, 255, 255, 0.98)),
    var(--color-white);
}

.impact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
}

.impact-metric {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 11px;
  padding: 11px 12px;
}

.impact-metric__icon {
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border-radius: 10px;
  background: var(--color-green-100);
  color: var(--color-green-700);
  font-size: 0.7rem;
  font-weight: 900;
}

.impact-metric span {
  color: var(--color-text-soft);
  font-size: 0.69rem;
}

.impact-metric strong {
  color: var(--color-green-700);
  font-size: 0.72rem;
  text-align: right;
}

.results-alert {
  margin: 20px;
  border: 1px solid rgba(142, 193, 216, 0.16);
  background: rgba(47, 149, 193, 0.09);
}

.results-alert strong {
  color: var(--color-white);
}

.results-alert p {
  color: rgba(255, 255, 255, 0.56);
}

.results-panel__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 22px 19px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.38);
  font-size: 0.65rem;
}

.results-panel__footer strong {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.67rem;
}

/* Information and disclaimer */

.information-section {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 30px;
}

.information-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 17px;
  padding: 25px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.information-card__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: var(--color-blue-100);
  color: var(--color-blue-700);
  font-size: 1rem;
  font-weight: 900;
}

.information-card h2 {
  font-size: 1.05rem;
}

.information-card p {
  margin: 7px 0 0;
  color: var(--color-text-soft);
  font-size: 0.84rem;
  line-height: 1.65;
}

.disclaimer {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  margin-top: 22px;
  padding: 25px;
  border: 1px solid #d8e2e7;
  border-radius: var(--radius-large);
  background: #edf3f6;
}

.disclaimer__icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--color-navy-900);
  color: var(--color-white);
  font-weight: 900;
}

.disclaimer h2 {
  font-size: 1rem;
}

.disclaimer p {
  margin: 7px 0 0;
  color: var(--color-text-soft);
  font-size: 0.78rem;
  line-height: 1.65;
}

/* Footer */

.site-footer {
  padding: 26px 0;
  background: var(--color-navy-950);
  color: rgba(255, 255, 255, 0.62);
}

.site-footer__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-footer strong {
  display: block;
  color: var(--color-white);
  font-size: 0.86rem;
}

.site-footer span {
  display: block;
  margin-top: 2px;
  font-size: 0.7rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.7rem;
  text-align: right;
}

/* Utility */

.is-hidden {
  display: none !important;
}

/* Responsive */

@media (max-width: 1220px) {
  .hero__container {
    grid-template-columns: minmax(0, 1.15fr) minmax(350px, 0.85fr);
    gap: 45px;
  }

  .estimator-layout {
    grid-template-columns: minmax(0, 1fr) minmax(370px, 0.68fr);
    gap: 24px;
  }

  .choice-card-grid--three {
    grid-template-columns: 1fr;
  }

  .choice-card__body {
    min-height: auto;
  }
}

@media (max-width: 1020px) {
  .hero {
    padding: 70px 0 112px;
  }

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

  .hero__content {
    max-width: 900px;
  }

  .hero__visual {
    display: none;
  }

  .intro-panel {
    margin-top: -83px;
  }

  .estimator-layout {
    grid-template-columns: 1fr;
  }

  .results-panel {
    position: static;
  }

  .results-column {
    order: 2;
  }

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

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

  .impact-metric {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .impact-metric strong {
    text-align: left;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 28px), var(--container-width));
  }

  .hero {
    padding: 55px 0 104px;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 11vw, 3.7rem);
  }

  .hero__description {
    font-size: 1rem;
  }

  .hero__highlights {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .intro-panel {
    align-items: flex-start;
    flex-direction: column;
    padding: 25px;
  }

  .intro-panel__badge {
    min-width: 0;
    width: 100%;
  }

  .form-card {
    padding: 24px;
  }

  .form-card__header {
    grid-template-columns: 1fr;
  }

  .form-grid,
  .checkbox-grid,
  .choice-card-grid--four,
  .information-section {
    grid-template-columns: 1fr;
  }

  .segmented-control {
    grid-template-columns: 1fr;
  }

  .form-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .results-panel__header {
    padding: 23px 21px 20px;
  }

  .primary-result-card,
  .result-card,
  .results-alert {
    margin-inline: 14px;
  }

  .primary-result-card__metrics {
    grid-template-columns: 1fr;
  }

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

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

  .impact-metric {
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }

  .impact-metric strong {
    text-align: right;
  }

  .information-card,
  .disclaimer {
    grid-template-columns: 1fr;
  }

  .site-footer__container {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer p {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 20px), var(--container-width));
  }

  .hero {
    padding-top: 42px;
  }

  .hero__eyebrow {
    font-size: 0.67rem;
  }

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

  .intro-panel,
  .form-card {
    padding: 21px;
  }

  .form-card__number {
    width: 43px;
    height: 43px;
  }

  .nested-form-panel {
    padding: 17px;
  }

  .choice-card__topline {
    flex-direction: column;
  }

  .choice-card__tag {
    align-self: flex-start;
  }

  .result-row,
  .estimate-range,
  .result-total,
  .savings-highlight {
    align-items: flex-start;
  }

  .result-row {
    flex-direction: column;
    gap: 3px;
  }

  .result-row strong,
  .estimate-range strong {
    text-align: left;
  }

  .estimate-range {
    flex-direction: column;
    gap: 4px;
  }

  .result-total {
    flex-direction: column;
    gap: 5px;
  }

  .result-total strong {
    text-align: left;
  }

  .savings-highlight {
    flex-direction: column;
    gap: 4px;
  }

  .impact-metric {
    grid-template-columns: auto 1fr;
  }

  .impact-metric strong {
    grid-column: 2;
    text-align: left;
  }

  .results-panel__footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}

/* Print layout */

@media print {
  @page {
    margin: 0.5in;
  }

  body {
    background: var(--color-white);
    color: #000000;
  }

  .hero,
  .intro-panel,
  .form-column,
  .information-section,
  .site-footer,
  .form-actions {
    display: none !important;
  }

  .main-content {
    padding: 0;
  }

  .container {
    width: 100%;
  }

  .estimator-layout {
    display: block;
  }

  .results-panel {
    position: static;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: var(--color-white);
    box-shadow: none;
  }

  .results-panel__header {
    padding: 0 0 18px;
    border-bottom: 2px solid #000000;
  }

  .results-panel__header h2,
  .results-panel__header p,
  .results-panel__eyebrow {
    color: #000000;
  }

  .results-panel__status {
    display: none;
  }

  .primary-result-card,
  .result-card {
    break-inside: avoid;
    margin: 16px 0;
    border: 1px solid #cccccc;
    background: var(--color-white);
    box-shadow: none;
  }

  .primary-result-card {
    color: #000000;
  }

  .primary-result-card__value strong,
  .primary-result-card__value span,
  .result-label,
  .solar-offset__header,
  .solar-offset__header strong,
  .mini-metric span,
  .mini-metric strong {
    color: #000000;
  }

  .primary-result-card__icon {
    border: 1px solid #cccccc;
    background: var(--color-white);
    color: #000000;
    box-shadow: none;
  }

  .mini-metric {
    border-color: #dddddd;
    background: #f6f6f6;
  }

  .progress-track {
    border: 1px solid #cccccc;
    background: #eeeeee;
  }

  .progress-track__fill {
    background: #777777;
    box-shadow: none;
  }

  .result-total {
    border: 1px solid #cccccc;
    background: #f4f4f4 !important;
    color: #000000 !important;
  }

  .results-alert {
    display: none;
  }

  .results-panel__footer {
    padding: 15px 0 0;
    border-top: 1px solid #cccccc;
    color: #333333;
  }

  .results-panel__footer strong {
    color: #000000;
  }

  .disclaimer {
    break-inside: avoid;
    margin-top: 20px;
    border: 1px solid #cccccc;
    background: #f5f5f5;
  }
}