:root {
  --white: #ffffff;
  --navy: #1d2d50;
  --navy-deep: #14203a;
  --silver: #aeb5c1;
  --silver-light: #e3e6eb;
  --mist: #f4f5f7;
  --text-soft: #586275;
  --serif: "EB Garamond", Garamond, Georgia, serif;
  --labels: "Jost", Arial, sans-serif;
  --gutter: clamp(1rem, 5vw, 4.5rem);
  --section: clamp(5rem, 10vw, 8.5rem);
  --max: 82rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: clip;
  background: var(--white);
  color: var(--navy);
  font-family: var(--serif);
  font-size: 1.08rem;
  line-height: 1.65;
}

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

a {
  color: inherit;
}

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

h1,
h2,
h3,
p,
figure,
blockquote,
fieldset,
address {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 500;
}

address {
  font-style: normal;
}

:focus-visible {
  outline: 3px solid #6b79a0;
  outline-offset: 4px;
}

::selection {
  background: var(--navy);
  color: var(--white);
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.65rem 1rem;
  background: var(--navy);
  color: var(--white);
  font-family: var(--labels);
  font-size: 0.72rem;
  text-decoration: none;
  text-transform: uppercase;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.section,
.rsvp-section,
.site-footer {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-block: 1.5rem 1.2rem;
  border-bottom: 1px solid var(--silver);
}

.crest {
  position: relative;
  display: grid;
  flex: 0 0 auto;
  width: 5.5rem;
  height: 5.5rem;
  place-items: center;
  border: 1px solid var(--navy);
  border-radius: 50%;
  color: var(--navy);
  text-decoration: none;
}

.crest::before {
  position: absolute;
  inset: 0.32rem;
  border: 1px solid var(--silver);
  border-radius: 50%;
  content: "";
}

.crest span {
  position: relative;
  z-index: 1;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.08em;
}

.crest--header {
  width: 4.5rem;
  height: 4.5rem;
}

.crest--header span {
  font-size: 1.2rem;
}

.formal-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem clamp(0.9rem, 4vw, 2.5rem);
  width: 100%;
  margin-top: 1.2rem;
  font-family: var(--labels);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.formal-nav a {
  text-decoration: none;
}

.formal-nav a:hover {
  text-decoration: underline;
  text-underline-offset: 0.35rem;
}

.invitation-wrap {
  padding: clamp(2rem, 6vw, 5rem) var(--gutter);
  background:
    linear-gradient(rgba(29, 45, 80, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 45, 80, 0.035) 1px, transparent 1px),
    var(--mist);
  background-size: 1.75rem 1.75rem;
}

.invitation-card {
  width: min(100%, 50rem);
  margin-inline: auto;
  padding: clamp(0.38rem, 1.5vw, 0.7rem);
  border: 2px solid var(--navy);
  background: var(--white);
  box-shadow: 0 1rem 3rem rgba(29, 45, 80, 0.1);
}

.invitation-inner {
  min-height: 39rem;
  padding: clamp(3rem, 10vw, 7.5rem) clamp(1rem, 8vw, 5rem);
  border: 1px solid var(--navy);
  text-align: center;
}

.invitation-kicker,
.attire,
.small-caps,
.card-label {
  font-family: var(--labels);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  line-height: 1.6;
  text-transform: uppercase;
}

.invitation-kicker {
  margin-bottom: clamp(2.5rem, 7vw, 4rem);
}

.invitation-card h1 {
  margin-bottom: 2rem;
  font-size: clamp(2.8rem, 11vw, 6.5rem);
  letter-spacing: -0.045em;
  line-height: 0.82;
}

.invitation-card h1 span,
.invitation-card h1 small {
  display: block;
}

.invitation-card h1 span {
  overflow-wrap: anywhere;
}

.invitation-card h1 small {
  margin: 0.5rem 0 0.65rem;
  font-size: 0.3em;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
}

.request-line {
  margin-bottom: 1.75rem;
  font-size: clamp(1.05rem, 3vw, 1.3rem);
  font-style: italic;
}

.invitation-rule {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: min(100%, 14rem);
  margin: 0 auto 1.75rem;
  color: var(--navy);
  font-size: 0.65rem;
}

.invitation-rule::before,
.invitation-rule::after {
  height: 1px;
  flex: 1;
  background: var(--silver);
  content: "";
}

.wedding-date {
  margin-bottom: 1.3rem;
  font-size: clamp(1.25rem, 4vw, 1.65rem);
  font-weight: 600;
  line-height: 1.35;
}

.wedding-date span {
  font-size: 0.82em;
  font-weight: 400;
}

.wedding-place {
  margin-bottom: 1.75rem;
}

.attire {
  margin-bottom: 0;
  color: var(--text-soft);
}

.hero-photo {
  width: min(100%, 100rem);
  margin: 0 auto;
  background: var(--navy);
}

.hero-photo img {
  aspect-ratio: 16 / 8;
  min-height: 20rem;
  max-height: 48rem;
  object-fit: cover;
  object-position: 50% 62%;
}

.hero-photo figcaption {
  padding: 0.8rem var(--gutter);
  background: var(--navy);
  color: var(--white);
  font-family: var(--labels);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-align: center;
  text-transform: uppercase;
}

.section {
  padding-block: var(--section);
  border-bottom: 1px solid var(--silver-light);
}

.section-heading {
  width: min(100%, 45rem);
  margin: 0 auto clamp(3rem, 7vw, 5rem);
  text-align: center;
}

.small-caps {
  margin-bottom: 1rem;
  color: var(--text-soft);
}

.section-heading h2,
.rsvp-heading h2 {
  margin-bottom: 1rem;
  font-size: clamp(3rem, 9vw, 6.2rem);
  letter-spacing: -0.04em;
  line-height: 0.92;
}

.section-heading > p:last-child {
  max-width: 34rem;
  margin: 0 auto;
  color: var(--text-soft);
}

.schedule-grid,
.travel-grid,
.registry-links {
  display: grid;
  gap: 1rem;
}

.schedule-grid article {
  display: flex;
  min-height: 25rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--navy);
  text-align: center;
}

.event-number {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 2rem;
  place-items: center;
  border: 1px solid var(--silver);
  border-radius: 50%;
  font-size: 0.82rem;
}

.event-time {
  margin-bottom: 0.65rem;
  color: var(--text-soft);
  font-family: var(--labels);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.schedule-grid h3,
.travel-grid h3 {
  margin-bottom: 1rem;
  font-size: clamp(2.2rem, 6vw, 3.3rem);
  line-height: 1;
}

.event-note {
  width: 100%;
  margin: auto 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--silver-light);
  color: var(--text-soft);
  font-size: 0.95rem;
  font-style: italic;
}

.travel {
  background: var(--mist);
}

.travel-grid article {
  display: flex;
  min-height: 25rem;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  flex-direction: column;
  border-top: 3px double var(--navy);
  border-bottom: 3px double var(--navy);
  background: var(--white);
}

.card-label {
  margin-bottom: 2rem;
  color: var(--text-soft);
}

.travel-grid article > p:not(.card-label) {
  color: var(--text-soft);
}

.travel-grid a {
  align-self: start;
  margin-top: auto;
  font-family: var(--labels);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-underline-offset: 0.35rem;
  text-transform: uppercase;
}

.rsvp-section {
  display: grid;
  gap: 3rem;
  padding-block: var(--section);
  background: var(--navy);
  color: var(--white);
}

.rsvp-heading {
  align-self: center;
  text-align: center;
}

.small-caps--light,
.rsvp-heading > p {
  color: #d8dce4;
}

.mini-rule {
  margin: 2rem 0;
  color: var(--silver);
}

.rsvp-contact {
  font-style: italic;
}

.rsvp-section form {
  display: grid;
  gap: 1.25rem 1rem;
  align-self: start;
  padding: clamp(1.25rem, 4vw, 2.75rem);
  border: 4px double var(--navy);
  background: var(--white);
  color: var(--navy);
}

.form-field {
  min-width: 0;
  margin-bottom: 0;
  padding: 0;
  border: 0;
}

.form-field label,
.form-field legend {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--navy);
  font-family: var(--labels);
  font-size: 0.63rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.form-field input:not([type="radio"]),
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.65rem 0;
  border: 0;
  border-bottom: 1px solid var(--navy);
  border-radius: 0;
  background: transparent;
  color: var(--navy);
}

.form-field textarea {
  resize: vertical;
}

.radio-row {
  display: grid;
  gap: 0.65rem 1.25rem;
  padding-top: 0.35rem;
}

.radio-row label {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}

.radio-row input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--navy);
}

.rsvp-section button {
  min-height: 3.5rem;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: var(--white);
  cursor: pointer;
  font-family: var(--labels);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.rsvp-section button:hover {
  background: var(--white);
  color: var(--navy);
}

.form-success {
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--navy);
  color: var(--navy);
  text-align: center;
}

.registry-links a {
  display: flex;
  min-height: 10rem;
  padding: 1.5rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 3px double var(--navy);
  text-align: center;
  text-decoration: none;
}

.registry-links a:hover {
  background: var(--navy);
  color: var(--white);
}

.registry-links span {
  font-size: clamp(1.7rem, 5vw, 2.4rem);
}

.registry-links small {
  margin-top: 0.6rem;
  font-family: var(--labels);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-footer {
  display: flex;
  padding-block: 3.5rem;
  flex-direction: column;
  align-items: center;
  background: var(--white);
  text-align: center;
}

.crest--footer {
  margin-bottom: 1.5rem;
}

.site-footer p {
  margin-bottom: 0.25rem;
}

.site-footer p:last-child {
  color: var(--text-soft);
  font-family: var(--labels);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

@media (min-width: 46rem) {
  .schedule-grid,
  .registry-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .travel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

  .rsvp-section {
    grid-template-columns: minmax(17rem, 0.7fr) minmax(25rem, 1.3fr);
    gap: clamp(3rem, 8vw, 8rem);
  }

  .rsvp-section form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-field--full,
  .rsvp-section button,
  .form-success {
    grid-column: 1 / -1;
  }

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

@media (max-width: 23.99rem) {
  .invitation-inner {
    padding-inline: 0.7rem;
  }

  .invitation-card h1 {
    font-size: 2.55rem;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Standard: back-to-top button with scroll-progress ring */
.btt-button {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 900;
  width: 48px; height: 48px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(17, 17, 17, 0.85); cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
  display: grid; place-items: center;
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.btt-button.btt-visible { opacity: 1; visibility: visible; transform: none; }
.btt-button:focus-visible { outline: 3px solid #1d2d50; outline-offset: 3px; }
.btt-ring { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.btt-ring circle { fill: none; stroke-width: 3; }
.btt-ring-track { stroke: rgba(255, 255, 255, 0.22); }
.btt-ring-fill { stroke: #1d2d50; stroke-dasharray: 125.66; stroke-dashoffset: 125.66; stroke-linecap: round; }
.btt-arrow { width: 18px; height: 18px; fill: none; stroke: #fff; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
@media (prefers-reduced-motion: reduce) { .btt-button { transition: none; } }