/* Summitline Events — shared styles */

:root {
  --ink: #16212e;
  --ink-soft: #3c4a5a;
  --muted: #5d6b7a;
  --paper: #fbfaf7;
  --surface: #ffffff;
  --tint: #f1eee7;
  --line: #e1ddd3;
  --brand: #1f3a52;
  --brand-deep: #142a3d;
  --accent: #c9773a;
  --accent-deep: #a65e27;
  --focus: #2f6fb0;
  --notice-bg: #fff6e8;
  --notice-line: #e7c08f;

  --radius: 10px;
  --max: 72rem;
  --gutter: clamp(1rem, 4vw, 2rem);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
}

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

a {
  color: var(--brand);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-deep);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.25rem);
}

h3 {
  font-size: 1.3rem;
}

p {
  margin: 0 0 1em;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.narrow {
  max-width: 46rem;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--brand-deep);
  color: #fff;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
  color: #fff;
}

/* Header */

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
}

.brand:hover {
  color: var(--ink);
}

.brand svg {
  width: 2.1rem;
  height: auto;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-block;
  padding: 0.35rem 0;
  color: var(--ink-soft);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--line);
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* Buttons */

.button {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border: 2px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.button:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: #fff;
}

.button--light {
  background: transparent;
  border-color: #fff;
  color: #fff;
}

.button--light:hover {
  background: #fff;
  border-color: #fff;
  color: var(--brand-deep);
}

.button:disabled,
.button:disabled:hover {
  background: #c9c4ba;
  border-color: #c9c4ba;
  color: #4a4a4a;
  cursor: not-allowed;
}

/* Sections */

.section {
  padding: clamp(3rem, 8vw, 5.5rem) 0;
}

.section--tint {
  background: var(--tint);
}

.section--dark {
  background: var(--brand-deep);
  color: #e8edf2;
}

.section--dark h2,
.section--dark h3 {
  color: #fff;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-deep);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section--dark .eyebrow {
  color: #f0b07c;
}

.lead {
  font-size: clamp(1.15rem, 2.2vw, 1.3rem);
  color: var(--ink-soft);
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  background-color: var(--brand-deep);
  background-image:
    linear-gradient(90deg, rgba(20, 42, 61, 0.94) 0%, rgba(20, 42, 61, 0.82) 55%, rgba(20, 42, 61, 0.6) 100%),
    url("../img/hero-conference-audience-960.jpg");
  background-position: center;
  background-size: cover;
  color: #e8edf2;
}

@media (min-width: 60rem) {
  .hero {
    background-image:
      linear-gradient(90deg, rgba(20, 42, 61, 0.94) 0%, rgba(20, 42, 61, 0.82) 55%, rgba(20, 42, 61, 0.55) 100%),
      url("../img/hero-conference-audience-1920.jpg");
  }
}

.hero .container {
  position: relative;
  z-index: 1;
  padding-top: clamp(3.5rem, 10vw, 7rem);
  padding-bottom: clamp(5rem, 13vw, 9rem);
}

.hero h1 {
  color: #fff;
  max-width: 16ch;
}

.hero .lead {
  color: #d6dee6;
  max-width: 38rem;
}

.hero p {
  max-width: 38rem;
}

.hero-art {
  position: absolute;
  inset: auto 0 0 0;
  width: 100%;
  height: auto;
  pointer-events: none;
}

.page-hero {
  background: var(--brand-deep);
  color: #d6dee6;
}

.page-hero .container {
  padding-top: clamp(3rem, 8vw, 5rem);
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

.page-hero h1 {
  color: #fff;
}

.page-hero .lead {
  color: #d6dee6;
  max-width: 42rem;
}

/* Layout helpers */

.split {
  display: grid;
  gap: 2rem 3rem;
}

@media (min-width: 52rem) {
  .split {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.split--center {
  align-items: center;
}

/* Photos (licensed stock; illustrative only) */

.photo {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--tint);
}

.split .photo {
  margin-top: 0.5rem;
}

.service-head .photo {
  margin-top: 0.75rem;
  margin-bottom: 0.75rem;
}

.aside-photo {
  margin-bottom: 1.25rem;
}

.cta-band {
  display: grid;
  gap: 1.25rem;
  align-items: center;
}

@media (min-width: 52rem) {
  .cta-band {
    grid-template-columns: 1fr auto;
  }
}

.cta-band h2 {
  margin-bottom: 0.3em;
}

.cta-band p {
  margin: 0;
}

/* Lists */

.check-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 40rem) {
  .check-list--columns {
    grid-template-columns: 1fr 1fr;
    column-gap: 2rem;
  }
}

.check-list li {
  position: relative;
  padding-left: 1.9rem;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 1rem;
  height: 0.6rem;
  border-left: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
  transform: rotate(-45deg);
}

/* Steps */

.steps {
  display: grid;
  gap: 1.25rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

@media (min-width: 40rem) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.steps li {
  counter-increment: step;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 0.75rem;
  color: var(--accent-deep);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
}

.steps h3 {
  margin-bottom: 0.4em;
}

.steps p {
  margin: 0;
  color: var(--ink-soft);
}

/* Cards */

.card-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

@media (min-width: 40rem) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
}

.card h3 {
  margin-bottom: 0.4em;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
}

/* Service blocks */

.service {
  display: grid;
  gap: 0.5rem 3rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
}

.service:first-child {
  border-top: 0;
  padding-top: 0;
}

@media (min-width: 52rem) {
  .service {
    grid-template-columns: 18rem 1fr;
  }
}

.service h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.8rem);
}

.service-body > :last-child {
  margin-bottom: 0;
}

.note {
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-soft);
}

/* Contact */

.contact-layout {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 60rem) {
  .contact-layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

.form-panel {
  padding: clamp(1.25rem, 4vw, 2.25rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.form-status {
  margin: 0 0 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--notice-bg);
  border: 1px solid var(--notice-line);
  border-radius: var(--radius);
  color: var(--ink);
}

.form-status strong {
  display: block;
  margin-bottom: 0.25rem;
}

.form-status p {
  margin: 0;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}

.form-grid {
  display: grid;
  gap: 1.1rem 1.25rem;
}

@media (min-width: 40rem) {
  .form-grid {
    grid-template-columns: 1fr 1fr;
  }

  .field--full {
    grid-column: 1 / -1;
  }
}

.field label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.field .optional {
  color: var(--muted);
  font-weight: 400;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid #b9b3a7;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.field textarea {
  min-height: 7.5rem;
  resize: vertical;
}

fieldset[disabled] input,
fieldset[disabled] textarea {
  background: #f4f2ee;
  color: var(--muted);
  cursor: not-allowed;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-privacy {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.aside-block {
  padding: 1.5rem;
  background: var(--tint);
  border-radius: var(--radius);
}

.aside-block + .aside-block {
  margin-top: 1.25rem;
}

.aside-block h2 {
  font-size: 1.35rem;
}

.placeholder-text {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  background: var(--notice-bg);
  border: 1px dashed var(--notice-line);
  border-radius: 6px;
  color: var(--ink-soft);
  font-style: italic;
}

/* Footer */

.site-footer {
  padding: 2.5rem 0;
  background: var(--ink);
  color: #b9c3cd;
  font-size: 0.95rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.site-footer a {
  color: #e8edf2;
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer p {
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}