/* ============================================================
   HospitalityOS — Global Stylesheet
   Stack: Static HTML/CSS/JS · Inter (Google Fonts)
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: #1a1a1a;
  background: #ffffff;
}

img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button, input, textarea, select { font: inherit; }

/* --- Design Tokens ----------------------------------------- */
:root {
  --color-dark:       #1a1a1a;
  --color-charcoal:   #4a4a4a;
  --color-gray:       #666666;
  --color-light-gray: #f5f5f5;
  --color-border:     #e0e0e0;
  --color-white:      #ffffff;
  --color-accent:     #e85d2a;
  --color-accent-hover:#d14e1f;

  --font-heading: 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;

  --max-width:    1200px;
  --section-pad:  120px;
  --section-pad-mobile: 64px;
  --nav-height:   72px;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-pill: 100px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,.1);
  --shadow-lg:  0 8px 30px rgba(0,0,0,.12);

  --transition: .25s ease;

  /* Phase 1 Tokens */
  --font-display: 'Playfair Display', serif;
  --gradient-accent: linear-gradient(135deg, #e85d2a 0%, #d65a28 100%);
  --gradient-dark: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
  --color-accent-bg: rgba(232,93,42,.04);
  --color-accent-light: rgba(232,93,42,.1);
  --ease-elastic: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 400ms;
  --elevation-1: 0 2px 8px rgba(0,0,0,.06);
  --elevation-2: 0 8px 24px rgba(0,0,0,.1);
  --elevation-3: 0 20px 48px rgba(0,0,0,.15);
}

/* --- Typography -------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-dark);
}

h1 { font-family: var(--font-display); font-size: clamp(3rem, 6vw, 4.5rem); letter-spacing: -1px; line-height: 1.08; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--color-gray);
  max-width: 680px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

/* --- Layout ------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-pad) 0;
}

.section--dark {
  background: var(--gradient-dark);
  color: var(--color-white);
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--color-white); }
.section--dark p { color: rgba(255,255,255,.7); }

.section--charcoal {
  background: var(--color-charcoal);
  color: var(--color-white);
}
.section--charcoal h1,
.section--charcoal h2,
.section--charcoal h3 { color: var(--color-white); }
.section--charcoal p { color: rgba(255,255,255,.7); }

.section--light {
  background: var(--color-light-gray);
}

.text-center { text-align: center; }
.mx-auto    { margin-left: auto; margin-right: auto; }

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .5px;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--elevation-2);
}

.btn--primary {
  background: var(--color-dark);
  color: var(--color-white);
}
.btn--primary:hover {
  background: #333;
}

.btn--white {
  background: var(--color-white);
  color: var(--color-dark);
}

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border: 2px solid var(--color-dark);
}
.btn--outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.btn--accent {
  background: var(--gradient-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(232,93,42,.25);
}
.btn--accent:hover {
  box-shadow: 0 8px 24px rgba(232,93,42,.35);
  filter: brightness(1.08);
}

.btn--sm {
  padding: 10px 24px;
  font-size: 13px;
}

/* --- Navigation -------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}

.nav--scrolled {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  height: 44px;
}
.nav__logo img {
  height: 44px;
  width: auto;
}
.nav__logo .logo-dark { display: none; }
.nav__logo .logo-white { display: block; }
.nav--scrolled .nav__logo .logo-dark { display: block; }
.nav--scrolled .nav__logo .logo-white { display: none; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  transition: color var(--transition);
  position: relative;
}
.nav--scrolled .nav__link {
  color: var(--color-gray);
}
.nav__link:hover,
.nav__link--active {
  color: var(--color-white);
}
.nav--scrolled .nav__link:hover,
.nav--scrolled .nav__link--active {
  color: var(--color-dark);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--accent {
  color: var(--color-accent) !important;
}
.nav--scrolled .nav__link--accent {
  color: var(--color-accent) !important;
}

.nav__cta {
  margin-left: 16px;
  background: transparent !important;
  border: 1px solid rgba(255,255,255,.4) !important;
  color: var(--color-white) !important;
}
.nav--scrolled .nav__cta {
  background: var(--color-dark) !important;
  border-color: var(--color-dark) !important;
  color: var(--color-white) !important;
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: transform var(--transition), opacity var(--transition);
}
.nav--scrolled .nav__toggle span {
  background: var(--color-dark);
}

/* Force dark nav on light-background pages */
.nav--light .nav__logo .logo-dark { display: block; }
.nav--light .nav__logo .logo-white { display: none; }
.nav--light .nav__link {
  color: var(--color-gray);
}
.nav--light .nav__link:hover,
.nav--light .nav__link--active {
  color: var(--color-dark);
}
.nav--light .nav__link--accent {
  color: var(--color-accent) !important;
}
.nav--light .nav__toggle span {
  background: var(--color-dark);
}
.nav--light .nav__cta {
  background: var(--color-dark) !important;
  border-color: var(--color-dark) !important;
  color: var(--color-white) !important;
}

/* --- Hero -------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background: var(--color-charcoal);
  color: var(--color-white);
  overflow: hidden;
}

.hero__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: .6;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26,26,26,.55) 0%, rgba(26,26,26,.4) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 24px;
  font-size: clamp(3.5rem, 7vw, 5rem);
  letter-spacing: -2px;
}

.hero__subtitle-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 32px;
  margin-bottom: 40px;
  max-width: 900px;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,.7);
  flex: 0 1 380px;
  margin: 0;
  line-height: 1.6;
}

.hero__rotating {
  display: block;
  color: var(--color-accent);
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  flex: 1 0 auto;
  letter-spacing: -1px;
  white-space: nowrap;
  text-transform: uppercase;
}

/* --- Marquee Strip ----------------------------------------- */
.marquee {
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  background: var(--color-light-gray);
  padding: 40px 0;
}

.marquee__inner {
  display: inline-flex;
  animation: marquee-scroll 30s linear infinite;
}

.marquee__text {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  color: rgba(0,0,0,.06);
  text-transform: uppercase;
  letter-spacing: 8px;
  padding-right: 80px;
}

.marquee::before,
.marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 2;
  pointer-events: none;
}
.marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--color-light-gray) 0%, transparent 100%);
}
.marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--color-light-gray) 0%, transparent 100%);
}

@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Service Accordion ------------------------------------- */
.service-item {
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}

.service-item__header {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  cursor: pointer;
  user-select: none;
}

.service-item__number {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gray);
  min-width: 40px;
  padding-top: 4px;
}

.service-item__title {
  flex: 1;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  transition: color var(--transition);
}

.service-item__header:hover .service-item__title {
  color: var(--color-accent);
}

.service-item__toggle {
  font-size: 24px;
  color: var(--color-gray);
  transition: transform var(--transition);
  min-width: 24px;
  text-align: center;
}

.service-item.active .service-item__toggle {
  transform: rotate(45deg);
}

.service-item__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
  padding-left: 64px;
}

.service-item.active .service-item__body {
  max-height: 600px;
  padding-top: 20px;
  padding-bottom: 8px;
}

.service-item__body p {
  color: var(--color-gray);
  line-height: 1.8;
}

/* --- Card Grid --------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--elevation-3);
  transition-timing-function: var(--ease-elastic);
}

.card__image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: var(--color-light-gray);
}

.card__body {
  padding: 24px;
}

.card__meta {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.card__meta span {
  color: var(--color-accent);
}

.card__title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
}

.card__excerpt {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.6;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
  margin-top: 16px;
  transition: gap var(--transition);
}
.card__link:hover { gap: 10px; }
.card__link::after { content: '→'; }

/* --- Contact Form ------------------------------------------ */
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--color-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-dark);
  box-shadow: 0 0 0 3px rgba(26,26,26,.08);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

/* --- Contact Info Sidebar ---------------------------------- */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info__item h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.contact-info__item p,
.contact-info__item a {
  color: var(--color-gray);
  font-size: 15px;
  line-height: 1.8;
}

.contact-info__item a:hover {
  color: var(--color-accent);
}

/* --- Footer ------------------------------------------------ */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 0;
}

/* CTA Banner */
.footer__cta {
  text-align: center;
  padding: 100px 0 80px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer__cta-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}
.footer__heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 20px;
}
.footer__heading em {
  font-style: italic;
  color: var(--color-accent);
}
.footer__subtext {
  font-size: 1.1rem;
  color: rgba(255,255,255,.5);
  max-width: 540px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.footer__cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer Main Grid */
.footer__main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding: 64px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer__brand p {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 300px;
}
.footer__brand .nav__logo .logo-dark { display: none; }
.footer__brand .nav__logo .logo-white { display: block; }
.footer__col-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 20px;
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer__link {
  font-size: 15px;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer__link:hover {
  color: var(--color-white);
}

/* Footer Newsletter */
.footer__newsletter-text {
  font-size: 14px;
  color: rgba(255,255,255,.5);
  line-height: 1.6;
  margin-bottom: 16px;
}
.footer__newsletter-form {
  display: flex;
  gap: 0;
}
.footer__newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,.15);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: rgba(255,255,255,.05);
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
}
.footer__newsletter-form input::placeholder {
  color: rgba(255,255,255,.3);
}
.footer__newsletter-form input:focus {
  border-color: var(--color-accent);
}
.footer__newsletter-form button {
  padding: 12px 20px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap;
}
.footer__newsletter-form button:hover {
  background: #d14e1f;
}

/* Footer Bottom */
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}
.footer__copy {
  font-size: 13px;
  color: rgba(255,255,255,.3);
}
.footer__social {
  display: flex;
  gap: 24px;
}
.footer__social a {
  color: rgba(255,255,255,.4);
  font-size: 13px;
  font-weight: 500;
  transition: color var(--transition);
}
.footer__social a:hover {
  color: var(--color-accent);
}

/* --- Page Header (inner pages) ----------------------------- */
.page-header {
  padding: calc(var(--nav-height) + 80px) 0 80px;
  background: var(--color-charcoal);
  color: var(--color-white);
}

.page-header h1 {
  color: var(--color-white);
  margin-bottom: 16px;
}

.page-header p {
  color: rgba(255,255,255,.7);
  font-size: 1.125rem;
}

/* --- Two Column Layout ------------------------------------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.two-col--form {
  grid-template-columns: 1.2fr .8fr;
}

/* --- Downloads Page ---------------------------------------- */
.download-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.benefit-list {
  display: grid;
  gap: 16px;
  margin: 32px 0;
}

.benefit-list__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--color-gray);
}

.benefit-list__item::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

.price-tag {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-dark);
  margin: 24px 0;
}

.price-tag span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-gray);
}

/* --- Privacy Policy ---------------------------------------- */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin-top: 48px;
  margin-bottom: 16px;
}

.legal-content h3 {
  font-size: 1.125rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

.legal-content p {
  margin-bottom: 16px;
  max-width: none;
}

.legal-content ul {
  margin-bottom: 16px;
  padding-left: 24px;
}
.legal-content ul li {
  list-style: disc;
  margin-bottom: 8px;
  color: var(--color-gray);
}

/* --- Article Components ------------------------------------ */

/* Stat highlight grid */
.article-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 48px 0 56px;
  padding: 0;
  background: var(--color-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.article-stats__item {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}
.article-stats__item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,.12);
}
.article-stats__number {
  font-family: 'Playfair Display', var(--font-display), serif;
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}
.article-stats__label {
  font-size: 0.8rem;
  line-height: 1.45;
  color: rgba(255,255,255,.7);
  font-weight: 400;
}
.article-stats__source {
  display: block;
  font-size: 0.65rem;
  font-style: italic;
  margin-top: 8px;
  color: rgba(255,255,255,.35);
}
.article-stats__source a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color .2s;
}
.article-stats__source a:hover {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .article-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-stats__item:nth-child(2)::after {
    display: none;
  }
  .article-stats__item:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .article-stats__item:nth-child(even)::after {
    display: none;
  }
}
@media (max-width: 480px) {
  .article-stats {
    grid-template-columns: 1fr;
  }
  .article-stats__item::after {
    display: none !important;
  }
  .article-stats__item:not(:last-child) {
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
}

/* Styled pullquotes */
.article-pullquote {
  margin: 44px 0;
  padding: 28px 32px 28px 28px;
  border-left: none;
  background: transparent;
  border-radius: 0;
  font-size: 1.15rem;
  font-weight: 400;
  font-style: italic;
  line-height: 1.7;
  color: var(--color-dark);
  position: relative;
  padding-left: 48px;
}
.article-pullquote::before {
  content: "\201C";
  position: absolute;
  left: 0;
  top: -8px;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 5rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: .3;
  font-style: normal;
}
.article-pullquote::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-accent), transparent);
  border-radius: 2px;
}
.article-pullquote cite,
.article-pullquote .pullquote-source {
  display: block;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  font-style: normal;
  color: var(--color-accent);
  letter-spacing: 0.3px;
}

/* Sources / references section */
.article-sources {
  margin-top: 56px;
  padding: 32px;
  background: var(--color-light-gray);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.article-sources h3 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--color-charcoal);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.article-sources ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
  columns: 1;
}
.article-sources li {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--color-gray);
  padding-left: 20px;
  position: relative;
}
.article-sources li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: .5;
}
.article-sources a {
  color: var(--color-charcoal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}
.article-sources a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Author bio card */
.article-author {
  margin-top: 40px;
  padding: 28px 32px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  display: flex;
  gap: 20px;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}
.article-author::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-accent);
}
.article-author__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-accent);
}
.article-author__info {
  flex: 1;
}
.article-author__label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 2px;
}
.article-author__name {
  font-family: 'Playfair Display', var(--font-display), serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}
.article-author__bio {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--color-gray);
}

@media (max-width: 480px) {
  .article-author {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding-left: 24px;
  }
  .article-author::before {
    left: 0; right: 0;
    top: 0; bottom: auto;
    width: auto; height: 4px;
  }
}

/* --- Reading Progress Bar ---------------------------------- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--color-accent);
  z-index: 10001;
  transition: none;
}

/* --- Back to Top Button ------------------------------------ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-dark);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s ease, visibility .3s ease, transform .3s ease, background .2s ease;
  z-index: 999;
  box-shadow: var(--shadow-md);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--color-accent);
}
.back-to-top svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}

/* --- Research Filter Tabs ---------------------------------- */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding: 6px;
  background: var(--color-light-gray);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  width: fit-content;
}
.filter-btn {
  padding: 10px 22px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-gray);
  cursor: pointer;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.filter-btn:hover {
  color: var(--color-dark);
  background: rgba(0,0,0,.04);
}
.filter-btn.active {
  background: var(--color-dark);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}

@media (max-width: 640px) {
  .filter-bar {
    width: 100%;
    justify-content: center;
  }
  .filter-btn {
    padding: 8px 16px;
    font-size: 0.72rem;
  }
}

/* Filter animation */
.card-grid .card {
  transition: opacity .3s ease, transform .3s ease;
}
.card-grid .card.filter-hidden {
  display: none !important;
}

/* --- Floating Form Labels ---------------------------------- */
.form-group {
  position: relative;
}
.form-group label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  color: var(--color-gray);
  pointer-events: none;
  transition: all .2s ease;
  background: #fff;
  padding: 0 4px;
}
.form-group textarea ~ label,
.form-group textarea + label {
  top: 20px;
  transform: none;
}
.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label,
.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -8px;
  transform: none;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.5px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  transition: border-color .2s ease;
  background: #fff;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-group textarea {
  min-height: 140px;
  resize: vertical;
}
.form-group + .form-group {
  margin-top: 20px;
}

/* --- 404 Page ---------------------------------------------- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height);
}

.error-page__code {
  font-size: clamp(6rem, 15vw, 12rem);
  font-weight: 800;
  color: var(--color-light-gray);
  line-height: 1;
}

/* --- Newsletter Inline ------------------------------------- */
.newsletter-inline {
  display: flex;
  gap: 12px;
  max-width: 480px;
}

.newsletter-inline input {
  flex: 1;
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 14px;
}

.newsletter-inline input:focus {
  outline: none;
  border-color: var(--color-dark);
}

/* --- Load More --------------------------------------------- */
.load-more-wrap {
  text-align: center;
  margin-top: 48px;
}

/* --- Scroll Reveal Animations ------------------------------ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}
.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }
.animate-on-scroll:nth-child(6) { transition-delay: 0.5s; }

/* --- Service item numbers gradient --- */
.service-item__number {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

/* --- Accent background section --- */
.section--accent-bg {
  background: linear-gradient(135deg, var(--color-accent) 0%, #d65a28 50%, #c44f20 100%);
  color: var(--color-white);
}
.section--accent-bg h1,
.section--accent-bg h2,
.section--accent-bg h3 { color: var(--color-white); }
.section--accent-bg p { color: rgba(255,255,255,.85); }

/* --- Newsletter Modal -------------------------------------- */
.newsletter-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 80px 24px 0;
}
.newsletter-modal.active {
  display: flex;
}
.newsletter-modal__backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,.3);
  z-index: 0;
}
.newsletter-modal__card {
  position: relative;
  z-index: 1;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  max-width: 460px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: modalSlideIn .25s ease;
}
@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
.newsletter-modal__close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-gray);
  line-height: 1;
}
.newsletter-modal__close:hover {
  color: var(--color-dark);
}
.newsletter-modal__text {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-align: center;
  color: var(--color-dark);
  max-width: 100%;
  line-height: 1.6;
  margin-bottom: 24px;
}
.newsletter-modal__form {
  display: flex;
  gap: 0;
}
.newsletter-modal__input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition);
}
.newsletter-modal__input:focus {
  border-color: var(--color-dark);
}
.newsletter-modal__btn {
  padding: 12px 24px;
  background: var(--color-dark);
  color: var(--color-white);
  border: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
}
.newsletter-modal__btn:hover {
  background: #333;
}

/* --- Responsive -------------------------------------------- */

/* === TABLET (1024px and below) === */
@media (max-width: 1024px) {
  .card-grid        { grid-template-columns: repeat(2, 1fr); }
  .two-col,
  .two-col--form,
  .download-hero    { grid-template-columns: 1fr; gap: 40px; }
  .footer__main     { grid-template-columns: repeat(2, 1fr); }

  /* Tablet typography scaling */
  h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
  .hero h1 { font-size: clamp(2.75rem, 6vw, 4rem); letter-spacing: -1.5px; }
  .footer__heading { font-size: clamp(2rem, 4vw, 3rem); }

  /* Tablet section padding */
  .section { padding: 80px 0; }
  .footer__cta { padding: 80px 0 60px; }

  /* Container breathing room */
  .container { padding: 0 32px; }
}

/* === MOBILE (768px and below) === */
@media (max-width: 768px) {
  :root {
    --section-pad: var(--section-pad-mobile);
    --nav-height: 64px;
  }

  /* --- Mobile Navigation --- */
  .nav__links  { display: none; }
  .nav__cta    { display: none; }
  .nav__toggle { display: flex; }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    padding: 32px 24px;
    gap: 20px;
    z-index: 999;
    overflow-y: auto;
    animation: slideDownNav 0.3s ease-out;
  }
  @keyframes slideDownNav {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .nav__links.open .nav__link {
    color: var(--color-dark);
    font-size: 16px;
    padding: 8px 0;
  }
  .nav__links.open .nav__link--accent {
    color: var(--color-accent) !important;
  }
  .nav__links.open .nav__cta {
    display: inline-flex;
    margin-left: 0;
    margin-top: 16px;
    width: 100%;
    justify-content: center;
    padding: 16px 32px;
  }

  /* --- Mobile Typography --- */
  h1 { font-size: clamp(2rem, 8vw, 2.75rem); letter-spacing: -0.5px; }
  h2 { font-size: clamp(1.75rem, 6vw, 2.25rem); }
  h3 { font-size: clamp(1.15rem, 4vw, 1.5rem); }
  .hero h1 { font-size: clamp(2.25rem, 9vw, 3rem); letter-spacing: -1px; }
  .footer__heading { font-size: clamp(1.75rem, 7vw, 2.5rem); }
  p { font-size: 15px; }

  /* --- Mobile Hero --- */
  .hero { min-height: 85vh; padding-top: var(--nav-height); align-items: flex-start; }
  .hero .container { padding-top: 10vh; }
  .hero__subtitle-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 24px;
  }
  .hero__subtitle { font-size: 1rem; max-width: 100%; margin-bottom: 2px; }
  .hero__rotating { font-size: clamp(2.2rem, 10vw, 3rem); margin-top: 0; }
  .hero__content { padding: 0 4px; }

  /* --- Mobile Buttons (48px min touch target) --- */
  .btn { padding: 16px 32px; font-size: 15px; min-height: 48px; }
  .btn--sm { padding: 14px 24px; font-size: 14px; min-height: 44px; }

  /* Hero buttons stack on small screens */
  .hero__content .btn + .btn { margin-top: 0; }

  /* --- Mobile Cards & Grids --- */
  .card-grid { grid-template-columns: 1fr; gap: 24px; }
  .card__body { padding: 20px; }
  .card__title { font-size: 1rem; }
  .card__excerpt { font-size: 13px; }

  /* --- Mobile Service Accordion --- */
  .service-item { padding: 24px 0; }
  .service-item__header { gap: 16px; }
  .service-item__body { padding-left: 40px; }
  .service-item__title { font-size: 1.1rem; }

  /* --- Mobile Footer --- */
  .footer__cta { padding: 64px 0 48px; }
  .footer__subtext { font-size: 1rem; margin-bottom: 32px; }
  .footer__cta-buttons { flex-direction: column; align-items: center; gap: 12px; }
  .footer__cta-buttons .btn { width: 100%; max-width: 320px; }
  .footer__main { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .footer__bottom { flex-direction: column; gap: 16px; text-align: center; padding: 20px 0; }
  .footer__newsletter-form { flex-direction: column; gap: 12px; }
  .footer__newsletter-form input {
    border-right: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-md);
    padding: 14px 16px;
  }
  .footer__newsletter-form button {
    border-radius: var(--radius-md);
    padding: 14px 20px;
  }

  /* --- Mobile Page Header --- */
  .page-header { padding: calc(var(--nav-height) + 48px) 0 48px; }
  .page-header h1 { font-size: clamp(1.75rem, 7vw, 2.5rem); }
  .page-header p { font-size: 1rem; }

  /* --- Mobile Two Column --- */
  .two-col, .two-col--form { gap: 32px; }

  /* --- Mobile Downloads --- */
  .download-hero { gap: 32px; }
  .price-tag { font-size: 2.5rem; }

  /* --- Mobile Form --- */
  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 16px; /* Prevents iOS auto-zoom */
    padding: 16px 18px;
  }

  /* --- Mobile Modal --- */
  .newsletter-modal {
    padding: 24px 16px 0;
    justify-content: center;
    align-items: center;
  }
  .newsletter-modal__card {
    max-width: 100%;
    padding: 32px 24px;
  }
  .newsletter-modal__form {
    flex-direction: column;
    gap: 12px;
  }
  .newsletter-modal__input {
    border-radius: var(--radius-sm);
    font-size: 16px;
    padding: 14px 16px;
  }
  .newsletter-modal__btn {
    border-radius: var(--radius-sm);
    padding: 14px 24px;
    width: 100%;
  }

  /* --- Mobile Section Spacing --- */
  .section { padding: 56px 0; }
  .container { padding: 0 20px; }

  /* --- Mobile Marquee --- */
  .marquee { padding: 24px 0; }
  .marquee__text { font-size: clamp(2rem, 8vw, 3rem); letter-spacing: 4px; padding-right: 40px; }
  .marquee::before, .marquee::after { width: 60px; }

  /* --- Reduce animation distance on mobile --- */
  .animate-on-scroll { transform: translateY(20px); }
}

/* === SMALL MOBILE (480px and below) === */
@media (max-width: 480px) {
  .newsletter-inline {
    flex-direction: column;
  }
  .newsletter-inline .btn {
    width: 100%;
  }

  /* Even tighter spacing */
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }

  h1 { font-size: clamp(1.75rem, 9vw, 2.25rem); }
  h2 { font-size: clamp(1.5rem, 7vw, 1.85rem); }
  .hero h1 { font-size: clamp(2rem, 10vw, 2.75rem); }

  /* Stack hero buttons full width */
  .hero__content { text-align: left; }

  /* Cards tighter */
  .card__body { padding: 16px; }

  /* Footer tighter */
  .footer__cta { padding: 48px 0 40px; }
  .footer__cta-buttons .btn { max-width: 100%; }
}

/* === Touch device improvements === */
@media (hover: none) and (pointer: coarse) {
  /* Disable hover transforms on touch devices (prevents sticky hover) */
  .card:hover { transform: none; box-shadow: var(--shadow-md); }
  .btn:hover { transform: none; }
  .pain-card:hover { transform: none; }
  .bot-card:hover { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.08); }

  /* Larger touch targets */
  .nav__link { padding: 8px 4px; }
  .footer__link { padding: 4px 0; font-size: 16px; }
  .card__link { padding: 8px 0; font-size: 14px; }
}