/* ============================================
   Microsoft 365 Copilot — Referral Landing
   ============================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f5f5f5;
  --color-bg-footer: #f2f2f2;
  --color-text: #171717;
  --color-text-muted: #616161;
  --color-link: #0067b8;
  --color-border: #e6e6e6;
  --color-border-strong: #d1d1d1;
  --color-primary: #111111;
  --color-primary-hover: #000000;
  --color-accent: #6b42ff;
  --color-accent-2: #e64c8e;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 1px 2px rgba(0,0,0,.04), 0 2px 6px rgba(0,0,0,.04);

  --container-max: 1280px;
  --gutter: 24px;

  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }

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

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

.asterisk { color: inherit; }
.chev { font-size: .75em; margin-left: 4px; color: var(--color-text-muted); }

/* ============== Buttons ============== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
  text-decoration: none !important;
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}
.btn--outline:hover { background: var(--color-text); color: #fff; }

.btn--sm { padding: 6px 14px; font-size: 13px; }
.btn--lg { padding: 14px 28px; font-size: 15px; }

/* ============== Promo banner ============== */
.promo-banner {
  position: relative;
  background: linear-gradient(90deg, #6b42ff 0%, #e64c8e 50%, #ff8a3d 100%);
  color: #fff;
  font-size: 14px;
}
.promo-banner__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 10px 56px 10px var(--gutter);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.promo-banner__badge {
  background: rgba(255,255,255,.22);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .3px;
  text-transform: uppercase;
}
.promo-banner__text { flex: 1 1 auto; }
.promo-banner__cta {
  color: #fff;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  white-space: nowrap;
}
.promo-banner__cta:hover { opacity: .9; }
.promo-banner__close {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: transparent;
  color: #fff;
  border: 0;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 10px;
}
.promo-banner.is-hidden { display: none; }

/* ============== Header ============== */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 40;
}
.site-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 10px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header__left { display: flex; align-items: center; gap: 24px; }
.site-header__right { display: flex; align-items: center; gap: 22px; font-size: 13px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 600;
  font-size: 15px;
}
.brand:hover { text-decoration: none; }
.brand__bar {
  width: 2px;
  height: 18px;
  background: var(--color-text-muted);
  display: inline-block;
}

.primary-nav ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; gap: 18px;
}
.primary-nav a {
  color: var(--color-text);
  font-size: 13px;
  font-weight: 400;
  padding: 6px 4px;
}
.primary-nav a:hover { color: var(--color-link); text-decoration: none; }

.nav-cta { padding: 6px 14px; font-size: 13px; }

.all-ms, .sign-in {
  color: var(--color-text);
  font-size: 13px;
}
.all-ms:hover, .sign-in:hover { text-decoration: underline; }

/* ============== Hero ============== */
.hero {
  background: linear-gradient(180deg, #f5f5f5 0%, #ececec 100%);
  padding: 64px 0 80px;
  overflow: hidden;
}
.hero__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero__title {
  font-size: 56px;
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -.5px;
  margin: 0 0 24px;
}
.hero__lede {
  font-size: 16px;
  color: var(--color-text);
  max-width: 520px;
  margin: 0 0 32px;
}
.hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; }

.hero__visual {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__art {
  position: absolute;
  max-width: 70%;
  filter: drop-shadow(0 10px 30px rgba(0,0,0,.12));
}
.hero__art--1 { top: 0; left: 4%; width: 42%; transform: rotate(-4deg); }
.hero__art--2 { top: 8%; right: 6%; width: 44%; transform: rotate(3deg); }
.hero__art--3 { bottom: 4%; left: 10%; width: 42%; transform: rotate(2deg); }
.hero__art--4 { bottom: 0; right: 2%; width: 44%; transform: rotate(-3deg); }

/* ============== Generic section ============== */
.section-title {
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -.2px;
}
.section-lede {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0 0 28px;
}

/* ============== Prompts ============== */
.prompts { padding: 56px 0 32px; }
.prompts__carousel { position: relative; }
.prompts__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - 4 * 16px) / 5);
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 16px 2px 8px;
  scrollbar-width: none;
}
.prompts__track::-webkit-scrollbar { display: none; }

.prompt-card {
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  min-height: 172px;
  box-shadow: var(--shadow-card);
}
.prompt-card__head {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 10px;
}
.prompt-card__icon { width: 22px; height: 22px; flex-shrink: 0; }
.prompt-card__title { font-size: 15px; font-weight: 600; margin: 0; }
.prompt-card__body {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 0 16px;
  flex: 1 1 auto;
}
.prompt-card__cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  align-self: flex-start;
}
.prompt-card__cta:hover { background: #000; text-decoration: none; }
.play {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; color: var(--color-primary);
  font-size: 8px;
}
.chip {
  background: #fff0e8; color: #d14600;
  padding: 1px 6px; border-radius: 3px; font-size: 12px;
}

.prompts__controls {
  display: flex; gap: 12px;
  margin-top: 8px;
  padding-left: 2px;
}
.carousel-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
  font-size: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .15s ease, border-color .15s ease;
}
.carousel-btn:hover { background: var(--color-bg-soft); }
.carousel-btn--active { border-color: var(--color-text); }

/* ============== Features ============== */
.features { padding: 48px 0 64px; }
.features__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 20px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}
.feature-card__media {
  background: linear-gradient(180deg, #fafafa 0%, #f0f0f0 100%);
  aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  padding: 18px;
  border-bottom: 1px solid var(--color-border);
}
.feature-card__media img {
  max-height: 100%;
  object-fit: contain;
}
.feature-card__title {
  font-size: 16px;
  font-weight: 600;
  margin: 18px 20px 8px;
}
.feature-card__body {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 20px 20px;
  flex: 1 1 auto;
}
.feature-card__cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  margin: 0 20px 20px;
  align-self: flex-start;
}
.feature-card__cta:hover { background: #000; text-decoration: none; }

/* ============== Discount callout ============== */
.discount-callout {
  background: linear-gradient(120deg, #1a1a1a 0%, #2e1a4d 50%, #4a1a5d 100%);
  color: #fff;
  padding: 56px 0;
}
.discount-callout__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.discount-callout h2 {
  font-size: 32px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -.3px;
}
.discount-callout p {
  color: rgba(255,255,255,.8);
  margin: 0;
  max-width: 560px;
}
.discount-callout .btn--primary {
  background: #fff;
  color: #111;
  border-color: #fff;
}
.discount-callout .btn--primary:hover {
  background: #f0f0f0;
  border-color: #f0f0f0;
}

/* ============== FAQ ============== */
.faq { padding: 64px 0 48px; }
.faq__head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap; gap: 16px;
}
.faq__list { border-top: 1px solid var(--color-border); }

.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 0;
  display: grid;
  grid-template-columns: 72px 1fr 32px;
  gap: 16px;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item__num {
  font-size: 14px;
  color: var(--color-text-muted);
}
.faq-item__q {
  font-size: 17px;
  font-weight: 600;
}
.faq-item__icon {
  width: 28px; height: 28px;
  border-radius: 4px;
  background: var(--color-primary);
  position: relative;
  justify-self: end;
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  background: #fff;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.faq-item__icon::before { width: 12px; height: 2px; }
.faq-item__icon::after  { width: 2px; height: 12px; transition: transform .2s ease; }
.faq-item[open] .faq-item__icon::after { transform: translate(-50%, -50%) scaleY(0); }

.faq-item__body {
  padding: 0 72px 24px 88px;
  color: var(--color-text-muted);
  font-size: 14px;
  max-width: 960px;
}
.faq-item__body p { margin: 0 0 14px; }

.faq__more {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 28px 0 24px;
}
.faq__note {
  font-size: 11px;
  color: var(--color-text-muted);
  margin: 32px 0 0;
  line-height: 1.6;
}

/* ============== Follow ============== */
.follow { padding: 32px 0; }
.follow__inner {
  display: flex; align-items: center; gap: 20px;
  flex-wrap: wrap;
}
.social {
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: 14px;
}
.social a {
  color: var(--color-text);
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
}
.social a:hover { color: var(--color-link); }

/* ============== Footer ============== */
.site-footer {
  background: var(--color-bg-footer);
  color: var(--color-text);
  padding: 48px 0 24px;
  font-size: 12px;
}
.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}
.site-footer__col h4 {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 14px;
}
.site-footer__col ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.site-footer__col a {
  color: var(--color-text);
  font-size: 11px;
}
.site-footer__col a:hover { color: var(--color-link); }

.site-footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  display: flex; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  font-size: 11px;
}
.site-footer__bottom a {
  color: var(--color-text);
  margin-right: 16px;
}
.site-footer__bottom a:last-child { margin-right: 0; }
.site-footer__bottom-right a { display: inline-block; }
.site-footer__bottom-left {
  display: inline-flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
}
.lang .globe { margin-right: 4px; }
.privacy-choices { display: inline-flex; align-items: center; gap: 6px; }
.pc-badge { display: inline-flex; }
.copy { color: var(--color-text-muted); margin-left: 16px; }

.site-footer__notice {
  background: #fff8dc;
  border-top: 1px solid #f0e5b0;
  color: #4d4a34;
  font-size: 11px;
  padding: 12px var(--gutter);
  margin: 24px -9999px 0;
  padding-left: calc(9999px + var(--gutter));
  padding-right: calc(9999px + var(--gutter));
  text-align: left;
  line-height: 1.6;
}

/* ============== Responsive ============== */
@media (max-width: 1100px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__cols { grid-template-columns: repeat(3, 1fr); }
  .prompts__track { grid-auto-columns: calc((100% - 2 * 16px) / 3); }
}

@media (max-width: 880px) {
  .hero { padding: 40px 0 48px; }
  .hero__inner { grid-template-columns: 1fr; gap: 32px; }
  .hero__title { font-size: 40px; }
  .hero__visual { min-height: 320px; }

  .primary-nav, .all-ms, .nav-cta { display: none; }

  .prompts__track { grid-auto-columns: calc((100% - 16px) / 2); }
  .site-footer__cols { grid-template-columns: repeat(2, 1fr); }
  .discount-callout h2 { font-size: 26px; }
  .faq-item summary { grid-template-columns: 48px 1fr 28px; }
  .faq-item__body { padding-left: 64px; padding-right: 0; }
}

@media (max-width: 560px) {
  .hero__title { font-size: 32px; }
  .features__grid { grid-template-columns: 1fr; }
  .prompts__track { grid-auto-columns: 85%; }
  .site-footer__cols { grid-template-columns: 1fr; }
  .promo-banner__inner { padding-right: 44px; }
  .promo-banner__text { font-size: 13px; }
}