/* ==========================================================================
   van Broek — Landing-Page „Metallbau-Partner für Planer in Köln"
   Design tokens + components
   ========================================================================== */

:root,
[data-theme='light'] {
  /* Surfaces — warm stone / travertine, echoing the reference photography */
  --color-bg: #f6f3ec;
  --color-surface: #fbf9f4;
  --color-surface-2: #fdfcfa;
  --color-surface-offset: #efeae0;
  --color-surface-offset-2: #e7e0d3;
  --color-surface-dynamic: #ddd4c3;
  --color-divider: #e4ddd0;
  --color-border: #ddd5c7;

  /* Text — warm anthracite (matches the dark steel framing in the photos) */
  --color-text: #201e1b;
  --color-text-muted: #6b6459;
  --color-text-faint: #a99f8f;
  --color-text-inverse: #f8f5ee;

  /* Primary accent — brushed bronze/brass, referencing the metalwork itself */
  --color-primary: #8a5a2e;
  --color-primary-hover: #6e4623;
  --color-primary-active: #55351a;
  --color-primary-highlight: #e6d6bf;

  /* Deep metal — anthracite for hero/footer contrast blocks */
  --color-ink: #1a1815;
  --color-ink-2: #24211d;

  --color-warning: #964219;
  --color-error: #a12c2c;
  --color-success: #4c7a34;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.9rem;
  --radius-xl: 1.4rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 60 / 0.08);
  --shadow-md: 0 4px 16px oklch(0.2 0.02 60 / 0.1);
  --shadow-lg: 0 16px 40px oklch(0.2 0.02 60 / 0.16);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1180px;
  --content-full: 100%;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Switzer', 'General Sans', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --color-bg: #15130f;
  --color-surface: #1b1915;
  --color-surface-2: #201e19;
  --color-surface-offset: #1e1c17;
  --color-surface-offset-2: #26231d;
  --color-surface-dynamic: #2f2b23;
  --color-divider: #2a2620;
  --color-border: #3a3529;
  --color-text: #ece6d9;
  --color-text-muted: #a89e8c;
  --color-text-faint: #6f6858;
  --color-text-inverse: #201e1b;
  --color-primary: #cf9c5c;
  --color-primary-hover: #e0b378;
  --color-primary-active: #f0c68c;
  --color-primary-highlight: #3a3122;
  --color-ink: #0e0d0b;
  --color-ink-2: #17150f;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 20px 48px oklch(0 0 0 / 0.5);
}

/* ---- Type scale ---- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-3xl: clamp(2.4rem, 1rem + 4vw, 4.5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--narrow {
  max-width: var(--content-narrow);
}
.container--default {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-24));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--color-primary);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
}

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-12);
}
.section-head h2 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.section-head p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 62ch;
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition:
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}
.brand svg {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-text strong {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-text span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
@media (max-width: 420px) {
  .brand-text span {
    display: none;
  }
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}
.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--color-text);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.header-actions .btn-primary {
  display: none;
}
@media (min-width: 560px) {
  .header-actions .btn-primary {
    display: inline-flex;
  }
  .header-actions {
    gap: var(--space-3);
  }
}
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}
.menu-toggle {
  display: flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }
  .menu-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-bg);
}
.mobile-menu.is-open {
  display: flex;
}
.mobile-menu a {
  padding: var(--space-3) var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}
.mobile-menu a:hover {
  background: var(--color-surface-offset);
}
@media (min-width: 900px) {
  .mobile-menu {
    display: none !important;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
[data-theme='dark'] .btn-primary {
  color: var(--color-ink);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid oklch(from var(--color-text) l c h / 0.22);
}
.btn-ghost:hover {
  background: oklch(from var(--color-text) l c h / 0.06);
  border-color: oklch(from var(--color-text) l c h / 0.36);
}
.btn-inverse {
  background: var(--color-text-inverse);
  color: var(--color-ink);
}
.btn-inverse:hover {
  background: var(--color-primary-highlight);
  transform: translateY(-1px);
}
.btn-block {
  width: 100%;
}
.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  background: var(--color-ink);
  color: var(--color-text-inverse);
  overflow: hidden;
  padding-block: clamp(var(--space-24), 14vw, 9rem) clamp(var(--space-16), 8vw, var(--space-24));
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
      120% 90% at 82% 0%,
      oklch(0.4 0.05 60 / 0.35),
      transparent 60%
    ),
    linear-gradient(180deg, oklch(0 0 0 / 0.15), oklch(0 0 0 / 0.55) 70%, oklch(0 0 0 / 0.75));
  pointer-events: none;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero-grid {
  display: grid;
  gap: var(--space-10);
  max-width: 44rem;
}
.hero h1 {
  font-size: var(--text-3xl);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.hero h1 em {
  font-style: italic;
  color: #e7b877;
  font-weight: 500;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.35);
}
.hero-sub {
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  color: oklch(from var(--color-text-inverse) l c h / 0.82);
  max-width: 38rem;
}
.hero-actions {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.hero-meta {
  margin-top: var(--space-12);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid oklch(from var(--color-text-inverse) l c h / 0.16);
}
.hero-meta-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text-inverse);
}
.hero-meta-item span {
  font-size: var(--text-xs);
  color: oklch(from var(--color-text-inverse) l c h / 0.65);
  letter-spacing: 0.03em;
}

/* ==========================================================================
   Problem section
   ========================================================================== */

.problem {
  background: var(--color-surface-offset);
}
.problem-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .problem-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.problem-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.problem-card .num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  display: block;
}
.problem-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  font-family: var(--font-body);
}
.problem-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.problem-quote {
  margin-top: var(--space-12);
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  max-width: 50rem;
  color: var(--color-text);
}

/* ==========================================================================
   Advantages
   ========================================================================== */

.advantages-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1040px) {
  .advantages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.advantage-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.advantage-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.advantage-card .icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.advantage-card .icon svg {
  width: 22px;
  height: 22px;
}
.advantage-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.advantage-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ==========================================================================
   Personal competence
   ========================================================================== */

.competence {
  background: var(--color-ink-2);
  color: var(--color-text-inverse);
}
.competence-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}
@media (min-width: 860px) {
  .competence-grid {
    grid-template-columns: 0.85fr 1.15fr;
  }
}
.competence-photo {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.competence-photo img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
}
.competence-badge {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  right: var(--space-5);
  background: oklch(0.15 0.01 60 / 0.72);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}
.competence-badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-base);
}
.competence-badge span {
  font-size: var(--text-xs);
  color: oklch(from var(--color-text-inverse) l c h / 0.7);
}
.competence-text .eyebrow {
  color: var(--color-primary);
}
.competence-text h2 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-5);
  color: var(--color-text-inverse);
}
.competence-text p {
  color: oklch(from var(--color-text-inverse) l c h / 0.8);
  font-size: var(--text-base);
  margin-bottom: var(--space-5);
  max-width: 42rem;
}
.competence-roles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-6) 0 var(--space-8);
}
.role-chip {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid oklch(from var(--color-text-inverse) l c h / 0.22);
  color: oklch(from var(--color-text-inverse) l c h / 0.85);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   Reference projects
   ========================================================================== */

.ref-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}
.ref-chip {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
}
.ref-chip.is-active {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}
[data-theme='dark'] .ref-chip.is-active {
  color: var(--color-ink);
}

.ref-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .ref-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.ref-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}
.ref-card.ref-card--wide {
  grid-column: 1 / -1;
}
.ref-media-stack {
  position: relative;
}
.ref-sketch-inset {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  width: 42%;
  max-width: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--color-surface);
  transform: rotate(-2deg);
}
.ref-sketch-inset img {
  aspect-ratio: 4/3;
  object-fit: cover;
}
@media (min-width: 720px) {
  .ref-card.ref-card--wide {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
  }
  .ref-media-stack {
    height: 100%;
  }
  .ref-card.ref-card--wide .ref-media {
    aspect-ratio: auto;
    height: 100%;
  }
}
.ref-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}
.ref-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ref-tag {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: oklch(0.15 0.01 60 / 0.72);
  color: #f6f3ec;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}
.ref-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.ref-body h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}
.ref-body .ref-loc {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.ref-facts {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: var(--text-sm);
}
.ref-facts div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: var(--space-2);
}
.ref-facts dt {
  color: var(--color-text-faint);
  font-weight: 500;
}
.ref-facts dd {
  color: var(--color-text-muted);
}

/* ==========================================================================
   Form / Machbarkeits-Check
   ========================================================================== */

.form-section {
  background: var(--color-surface-offset);
}
.form-wrap {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 900px) {
  .form-wrap {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}
.form-intro h2 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-5);
}
.form-intro p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: 34rem;
}
.form-intro ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-intro li {
  display: flex;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  min-width: 0;
}
.form-intro li > *:last-child {
  min-width: 0;
}
.form-intro li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}
.form-contact {
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.form-contact a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
}
.form-contact a:hover {
  color: var(--color-primary);
}
.form-contact .contact-line {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
}
.form-contact .contact-line svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.card-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  box-shadow: var(--shadow-md);
}
.field-row {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 560px) {
  .field-row--2 {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}
.field {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.field label {
  font-size: var(--text-sm);
  font-weight: 600;
}
.field label .opt {
  color: var(--color-text-faint);
  font-weight: 400;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: var(--text-base);
  min-height: 48px;
}
.field textarea {
  min-height: 110px;
  resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-primary);
}
.field-file {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  background: var(--color-surface-2);
  cursor: pointer;
}
.field-file:hover {
  border-color: var(--color-primary);
}
.field-file input {
  display: none;
}
.field-file .fname {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
  word-break: break-all;
}
.field-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.field-checkbox input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}
.field-checkbox a {
  color: var(--color-text);
  text-decoration: underline;
}
.form-status {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  display: none;
}
.form-status.is-visible {
  display: block;
}
.form-status.is-success {
  color: var(--color-success);
}
.form-status.is-error {
  color: var(--color-error);
}
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-8) var(--space-4);
}
.form-success.is-visible {
  display: block;
}
.form-success svg {
  width: 48px;
  height: 48px;
  color: var(--color-success);
  margin: 0 auto var(--space-4);
}
.form-success h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}
.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.card-form.is-submitted .form-fields {
  display: none;
}

/* ==========================================================================
   Trust / footer CTA
   ========================================================================== */

.trust {
  background: var(--color-ink);
  color: var(--color-text-inverse);
}
.trust-grid {
  display: grid;
  gap: var(--space-12);
}
@media (min-width: 860px) {
  .trust-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}
.trust h2 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-5);
  max-width: 30ch;
}
.trust p {
  color: oklch(from var(--color-text-inverse) l c h / 0.75);
  max-width: 40ch;
  margin-bottom: var(--space-8);
}
.trust-cert {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.cert-chip {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid oklch(from var(--color-text-inverse) l c h / 0.2);
  color: oklch(from var(--color-text-inverse) l c h / 0.8);
}
.trust-card {
  background: oklch(from var(--color-text-inverse) l c h / 0.06);
  border: 1px solid oklch(from var(--color-text-inverse) l c h / 0.14);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.trust-card .contact-line {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}
.trust-card .contact-line svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.trust-card a {
  color: var(--color-text-inverse);
  text-decoration: none;
}
.trust-card a:hover {
  color: var(--color-primary);
}

footer.site-footer {
  background: var(--color-ink);
  color: oklch(from var(--color-text-inverse) l c h / 0.55);
  padding-block: var(--space-8);
  border-top: 1px solid oklch(from var(--color-text-inverse) l c h / 0.1);
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
}
.footer-row a {
  color: inherit;
  text-decoration: none;
}
.footer-row a:hover {
  color: var(--color-text-inverse);
}
.footer-links {
  display: flex;
  gap: var(--space-5);
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Utility
   ========================================================================== */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}