/* ============================================================
   Hatékony Fűtés – Landing page (2026 visual refresh)
   Plus Jakarta Sans · mobile-first · petrol teal palette
   ============================================================ */

/* ----- Design tokens ----- */
:root {
  /* Brand – deep petrol / teal */
  --brand-950: #042f2e;
  --brand-900: #0c4a48;
  --brand-800: #115e59;
  --brand-700: #0f766e;
  --brand-600: #0d9488;
  --brand-500: #14b8a6;
  --brand-400: #2dd4bf;
  --brand-100: #ccfbf1;
  --brand-50: #f0fdfa;

  /* CTA accent – warm contrast */
  --accent-600: #ea580c;
  --accent-500: #f97316;
  --accent-400: #fb923c;

  /* Neutrals */
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-text-subtle: #64748b;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-muted: #f1f5f9;
  --color-border: rgba(15, 23, 42, 0.08);
  --color-border-strong: rgba(15, 23, 42, 0.12);
  --color-error: #dc2626;
  --color-success: #059669;
  --color-image-placeholder: #e2e8f0;

  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.1);
  --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 12px 32px rgba(15, 23, 42, 0.12);
  --shadow-cta: 0 8px 24px rgba(234, 88, 12, 0.35);

  --header-height: 72px;
  --sticky-cta-height: 80px;
  --container-max: 1200px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-reveal: 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----- Reset & base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* ----- Scroll reveal ----- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--transition-reveal),
    transform var(--transition-reveal);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.4s; }
.reveal-delay-6 { transition-delay: 0.48s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ----- Layout ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.container-narrow {
  max-width: 680px;
}

.section {
  padding-block: 5rem;
  position: relative;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  margin-bottom: 3rem;
}

.section-title {
  font-size: clamp(1.625rem, 4.5vw, 2.375rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.section-lead {
  text-align: center;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
  max-width: 580px;
  margin-inline: auto;
}

/* Alternate section backgrounds */
.pain-points { background: var(--color-bg); }
.audience { background: var(--color-bg-alt); }
.why-us { background: var(--color-bg); }
.process { background: var(--color-bg-alt); }
.references { background: var(--color-bg); }
.faq { background: var(--color-bg-alt); }

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast),
    opacity var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-600) 0%, var(--accent-500) 100%);
  color: #fff;
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(234, 88, 12, 0.4);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ----- Header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}

.contact-details {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--brand-50);
  border: 1px solid rgba(15, 118, 110, 0.12);
  border-radius: var(--radius-md);
  text-align: center;
}

.contact-details-title {
  font-weight: 700;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand-800);
  margin-bottom: 0.5rem;
}

.contact-details p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0.25rem 0;
}

.contact-details a {
  color: var(--brand-800);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.contact-details a:hover {
  color: var(--brand-600);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.footer-contact p {
  margin: 0;
  font-size: 0.9375rem;
  color: #cbd5e1;
}

.footer-contact a {
  color: #e2e8f0;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.footer-contact a:hover {
  color: #fff;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 800;
  font-size: clamp(0.8125rem, 2.5vw, 1.0625rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--color-text);
  max-width: min(100%, 220px);
  cursor: default;
  user-select: none;
}

@media (min-width: 641px) {
  .logo {
    max-width: none;
    font-size: 1.0625rem;
  }
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(15, 118, 110, 0.3);
}

.header-cta {
  flex-shrink: 0;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  padding-block: 3.5rem 5rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 90% 10%, rgba(20, 184, 166, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 0% 80%, rgba(14, 116, 144, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--brand-50) 0%, var(--color-bg) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: stretch;
  position: relative;
  z-index: 1;
}

.hero-content {
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-800);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(15, 118, 110, 0.15);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-xs);
}

.hero h1 {
  font-size: clamp(1.75rem, 6vw, 3.5rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.1875rem);
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
  max-width: 540px;
  margin-inline: auto;
}

.hero-cta {
  min-width: 240px;
}

.hero-media {
  width: 100%;
}

.hero-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background-color: var(--color-image-placeholder);
  min-height: 220px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ----- Cards ----- */
.cards-grid {
  display: grid;
  gap: 1.25rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-card);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border-strong);
}

.icon-card {
  text-align: center;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--brand-50), var(--brand-100));
  color: var(--brand-700);
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  transition: transform var(--transition-base);
}

.card:hover .card-icon {
  transform: scale(1.05);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.625rem;
  color: var(--color-text);
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ----- Audience cards ----- */
.audience-card {
  padding: 2rem 1.75rem;
}

.audience-card h3 {
  font-size: 1.1875rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--brand-800);
}

.check-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.check-list li:last-child {
  margin-bottom: 0;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  background: linear-gradient(135deg, var(--brand-600), var(--brand-400));
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--brand-50);
}

/* ----- Process steps ----- */
.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  position: relative;
}

.process-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding-bottom: 2.5rem;
  position: relative;
}

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 27px;
  top: 56px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-200, #99f6e4), var(--color-border));
}

.step-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(15, 118, 110, 0.35);
  z-index: 1;
}

.step-content h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.step-content p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ----- References ----- */
.reference-card {
  padding: 0;
  overflow: hidden;
}

.reference-card:hover {
  transform: translateY(-6px);
}

.reference-image-wrap {
  background: var(--color-image-placeholder);
  overflow: hidden;
}

.reference-image {
  width: 100%;
  aspect-ratio: 400 / 260;
  object-fit: cover;
  background-color: var(--color-image-placeholder);
  min-height: 180px;
  transition: transform var(--transition-base);
}

.reference-card:hover .reference-image {
  transform: scale(1.03);
}

.reference-card blockquote {
  padding: 1.5rem 1.75rem 1.75rem;
  position: relative;
}

.reference-card blockquote::before {
  content: "\201C";
  position: absolute;
  top: 0.75rem;
  left: 1.25rem;
  font-size: 3rem;
  line-height: 1;
  color: var(--brand-100);
  font-weight: 800;
  pointer-events: none;
}

.reference-card blockquote p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-style: normal;
  margin-bottom: 1rem;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.reference-card footer {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-800);
}

/* ----- FAQ Accordion ----- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-fast);
}

.accordion-item:has(.accordion-trigger[aria-expanded="true"]) {
  box-shadow: var(--shadow-sm);
  border-color: rgba(15, 118, 110, 0.2);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: -0.01em;
  cursor: pointer;
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.accordion-trigger:hover {
  background: var(--color-bg-muted);
}

.accordion-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  background: var(--brand-50);
  border-radius: 50%;
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  background: var(--brand-700);
  border-radius: 1px;
  transition: transform var(--transition-fast);
  top: 50%;
  left: 50%;
}

.accordion-icon::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.accordion-icon::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.accordion-panel {
  padding: 0 1.5rem 1.25rem;
}

.accordion-panel p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ----- Form section ----- */
.form-section {
  background:
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(20, 184, 166, 0.1) 0%, transparent 60%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--brand-50) 100%);
  padding-bottom: 6rem;
}

.form-intro {
  margin-bottom: 2.5rem;
}

.form-intro .section-lead {
  margin-bottom: 0;
}

.hp-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.quote-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.375rem;
}

.form-group label,
.form-group legend {
  display: block;
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.required {
  color: var(--color-error);
}

.optional {
  font-weight: 500;
  color: var(--color-text-subtle);
}

.field-hint {
  font-size: 0.875rem;
  color: var(--brand-700);
  line-height: 1.5;
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.file-upload {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.file-upload-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--brand-800);
  background: var(--brand-50);
  border: 1.5px dashed rgba(15, 118, 110, 0.35);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.file-upload-label:hover {
  background: var(--brand-100);
  border-color: var(--brand-600);
}

.file-upload-label svg {
  flex-shrink: 0;
  color: var(--brand-700);
}

.file-name {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  word-break: break-all;
}

.file-name.has-file {
  color: var(--color-text);
  font-weight: 600;
}

.file-input:focus + .file-upload-label {
  outline: 2px solid var(--brand-600);
  outline-offset: 2px;
}

.file-input.invalid + .file-upload-label {
  border-color: var(--color-error);
  background: #fef2f2;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1.125rem;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 1rem;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-subtle);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-600);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.12);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--color-error);
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.08);
}

.field-error {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 0.375rem;
  min-height: 1.25rem;
}

fieldset.form-group {
  border: none;
}

.radio-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.875rem 1.125rem;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
}

.radio-label:hover {
  border-color: rgba(15, 118, 110, 0.3);
  background: var(--brand-50);
}

.radio-label:has(input:checked) {
  border-color: var(--brand-600);
  background: var(--brand-50);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.radio-label input {
  accent-color: var(--brand-700);
  width: 18px;
  height: 18px;
}

.form-privacy {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-top: 1.25rem;
  line-height: 1.5;
}

.form-privacy a {
  color: var(--color-text-subtle);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-privacy a:hover {
  color: var(--brand-700);
}

.form-submit-error {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-error);
  margin-top: 1rem;
  padding: 0.875rem 1.125rem;
  background: #fef2f2;
  border-radius: var(--radius-sm);
  border: 1px solid #fecaca;
}

.form-success {
  background: var(--color-bg);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: var(--color-success);
  font-size: 1.875rem;
  font-weight: 800;
  border-radius: 50%;
  margin-bottom: 1.25rem;
}

.form-success h3 {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.625rem;
}

.form-success p {
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ----- Footer ----- */
.site-footer {
  background: var(--brand-950);
  color: #94a3b8;
  padding-block: 2.5rem;
  text-align: center;
}

.footer-brand {
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 0.5rem;
}

.footer-copy {
  font-size: 0.875rem;
}

/* ----- Mobile sticky CTA ----- */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 1rem 1.25rem;
  padding-bottom: max(1rem, env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border-strong);
  box-shadow: 0 -8px 32px rgba(15, 23, 42, 0.12);
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sticky-cta.visible {
  transform: translateY(0);
}

/* ============================================================
   Responsive breakpoints
   Mobile:  ≤640px  |  Tablet: 641–1024px  |  Desktop: ≥1025px
   ============================================================ */

/* Tablet+ */
@media (min-width: 641px) {
  .container {
    padding-inline: 2rem;
  }

  .cards-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .cards-grid-audience {
    gap: 1.25rem;
  }

  .cards-grid-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .cards-grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .radio-group {
    grid-template-columns: repeat(2, 1fr);
  }

  .radio-label {
    min-height: 100%;
  }

  .quote-form {
    padding: 2.5rem 2.25rem;
  }

  .section {
    padding-block: 6rem;
  }
}

/* Desktop */
@media (min-width: 1025px) {
  .hero-inner {
    flex-direction: row;
    align-items: center;
    gap: 4rem;
  }

  .hero-content {
    flex: 1.05;
    text-align: left;
  }

  .hero-subtitle {
    margin-inline: 0;
  }

  .hero-media {
    flex: 0.95;
  }

  .cards-grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }

  .cards-grid-4 {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }

  .process-steps {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.75rem;
  }

  .process .container {
    max-width: min(96vw, 1560px);
    padding-inline: 1.5rem;
  }

  .process-step {
    flex: 1 1 0;
    min-width: 0;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    padding-bottom: 0;
  }

  .process-step .step-number {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .process-step .step-content h3 {
    font-size: 0.875rem;
    line-height: 1.35;
    margin-bottom: 0.375rem;
  }

  .process-step .step-content p {
    font-size: 0.8125rem;
    line-height: 1.45;
  }

  .process-step:not(:last-child)::after {
    display: block;
    left: calc(50% + 22px);
    right: auto;
    top: 22px;
    bottom: auto;
    width: calc(100% - 44px);
    height: 2px;
    background: linear-gradient(90deg, var(--brand-400), var(--color-border));
    transform: none;
  }

  .header-cta {
    display: inline-flex;
  }
}

/* Mobile-only */
@media (max-width: 640px) {
  .sticky-cta {
    display: block;
  }

  body.has-sticky-cta {
    padding-bottom: calc(var(--sticky-cta-height) + env(safe-area-inset-bottom, 0px));
  }

  .site-header {
    height: auto;
    min-height: 80px;
  }

  .header-inner {
    gap: 0.75rem;
    min-height: 80px;
    padding-block: 0.625rem;
  }

  .header-cta {
    display: inline-flex;
    flex-shrink: 0;
    padding: 0.6875rem 1rem;
    font-size: 0.875rem;
    line-height: 1;
    white-space: nowrap;
    max-width: none;
    letter-spacing: -0.01em;
  }

  .logo {
    max-width: 11rem;
    font-size: 0.8125rem;
    line-height: 1.25;
    flex: 1 1 auto;
    min-width: 0;
  }

  .header-actions {
    flex-shrink: 0;
    margin-left: 0;
  }

  .section {
    padding-block: 4rem;
  }

  .section-header {
    margin-bottom: 2.25rem;
  }

  .card {
    padding: 1.75rem 1.5rem;
  }

  .hero {
    padding-block: 2.5rem 3.5rem;
  }

  .hero-cta {
    width: 100%;
  }

  .logo-text {
    font-size: 0.9375rem;
  }
}

/* Large desktop polish */
@media (min-width: 1280px) {
  .hero h1 {
    font-size: 3.5rem;
  }

  .cards-grid {
    gap: 2rem;
  }

  .process-steps {
    gap: 1rem;
  }

  .process .container {
    max-width: min(94vw, 1680px);
  }

  .process-step .step-content h3 {
    font-size: 0.9375rem;
  }

  .process-step .step-content p {
    font-size: 0.875rem;
    line-height: 1.5;
  }
}