/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,700;1,9..144,300;1,9..144,400&family=Manrope:wght@300;400;500;600;700&display=swap');

/* ─── Custom Properties ─── */
:root {
  --white: #ffffff;
  --black: #111111;
  --gray-light: #f4f4f2;
  --gray-mid: #e8e8e5;
  --gray-text: #555550;
  --red: #d42b2b;
  --red-dark: #b52222;
  --font-heading: 'Fraunces', serif;
  --font-body: 'Manrope', sans-serif;
  --col-width: 720px;
  --nav-height: 60px;
}

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

html {
  font-size: 17px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.75;
  padding-bottom: calc(var(--nav-height) + 2rem);
}

/* ─── Typography ─── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 400;
  margin-top: 3rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2rem;
  margin-bottom: 0.6rem;
}

p {
  margin-bottom: 1.4rem;
  color: var(--black);
}

strong {
  font-weight: 700;
}

em {
  font-style: italic;
}

/* ─── Links ─── */
a {
  color: var(--black);
  text-decoration: underline;
  text-decoration-color: var(--red);
  text-underline-offset: 4px;
  text-decoration-thickness: 1.5px;
  transition: color 0.18s ease, text-decoration-color 0.18s ease;
}

a:hover {
  color: var(--red);
  text-decoration-color: var(--red);
}

/* ─── Layout Containers ─── */
.container {
  max-width: var(--col-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.container--wide {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ─── Hero Section ─── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 88vh;
  align-items: stretch;
}

.hero__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 4rem 5rem 3rem;
  background: var(--white);
}

.hero__image {
  position: relative;
  overflow: hidden;
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero__kicker {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  text-decoration: none;
  margin-bottom: 1.2rem;
  display: block;
}

.hero__kicker:hover {
  color: var(--red-dark);
}

.hero__title {
  margin-bottom: 1.4rem;
}

.hero__lead {
  font-size: 1.1rem;
  color: var(--gray-text);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 460px;
}

.hero__cta {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.18s ease;
  align-self: flex-start;
}

.hero__cta:hover {
  background: var(--red);
  color: var(--white);
  text-decoration: none;
}

/* ─── Wide Image Block ─── */
.wide-image-block {
  width: 100%;
  height: 55vh;
  overflow: hidden;
  margin: 4rem 0;
}

.wide-image-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.wide-image-block--gradient {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 70%, #533483 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.wide-image-block--gradient::after {
  content: "Microsoft Copilot";
  font-family: var(--font-heading);
  font-size: 3rem;
  color: rgba(255,255,255,0.15);
  letter-spacing: -0.02em;
}

/* ─── Article Body ─── */
.article-body {
  padding: 4rem 0 2rem;
}

/* ─── Section Divider ─── */
.section-rule {
  border: none;
  border-top: 1px solid var(--gray-mid);
  margin: 3rem 0;
}

/* ─── Feature Grid ─── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin: 2rem 0;
  border: 1px solid var(--gray-mid);
}

.feature-card {
  padding: 2rem;
  border-right: 1px solid var(--gray-mid);
  border-bottom: 1px solid var(--gray-mid);
  transition: background 0.15s;
}

.feature-card:nth-child(2n) {
  border-right: none;
}

.feature-card:nth-last-child(-n+2) {
  border-bottom: none;
}

.feature-card:hover {
  background: var(--gray-light);
}

.feature-card__icon {
  display: inline-block;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--red);
  color: var(--white);
  font-size: 1rem;
  line-height: 36px;
  text-align: center;
  margin-bottom: 1rem;
  font-weight: 700;
}

.feature-card__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-text);
  margin-bottom: 0;
}

/* ─── Step List ─── */
.step-list {
  counter-reset: steps;
  list-style: none;
  margin: 2rem 0;
}

.step-list li {
  counter-increment: steps;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--gray-mid);
  align-items: start;
}

.step-list li::before {
  content: counter(steps, decimal-leading-zero);
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--red);
  line-height: 1;
  padding-top: 0.1rem;
}

.step-list__title {
  font-weight: 700;
  display: block;
  margin-bottom: 0.3rem;
}

.step-list p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--gray-text);
}

/* ─── Pull Quote ─── */
.pull-quote {
  border-left: 4px solid var(--red);
  padding: 1.5rem 2rem;
  margin: 3rem 0;
  background: var(--gray-light);
}

.pull-quote p {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 300;
  font-style: italic;
  line-height: 1.4;
  color: var(--black);
  margin-bottom: 0.5rem;
}

.pull-quote cite {
  font-size: 0.8rem;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-text);
}

/* ─── Tips / Tip Cards ─── */
.tips-list {
  list-style: none;
  margin: 2rem 0;
}

.tips-list li {
  display: flex;
  gap: 1rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--gray-mid);
  align-items: flex-start;
}

.tips-list li::before {
  content: "→";
  color: var(--red);
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.tips-list strong {
  display: block;
  margin-bottom: 0.2rem;
}

.tips-list p {
  margin-bottom: 0;
  font-size: 0.93rem;
  color: var(--gray-text);
}

/* ─── Info Box ─── */
.info-box {
  background: var(--black);
  color: var(--white);
  padding: 2.5rem;
  margin: 3rem 0;
}

.info-box h2, .info-box h3 {
  color: var(--white);
}

.info-box p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 0.8rem;
}

.info-box p:last-child {
  margin-bottom: 0;
}

/* ─── Contact Form ─── */
.contact-form {
  margin: 2rem 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  border: 1px solid var(--gray-mid);
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--white);
  color: var(--black);
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--black);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.btn-submit {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  border: none;
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-submit:hover {
  background: var(--red);
}

/* ─── Page Header (inner pages) ─── */
.page-header {
  padding: 6rem 0 3rem;
  border-bottom: 1px solid var(--gray-mid);
  margin-bottom: 4rem;
}

.page-header__kicker {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
  text-decoration: none;
}

.page-header__title {
  margin-bottom: 1rem;
}

.page-header__lead {
  font-size: 1.15rem;
  color: var(--gray-text);
  max-width: 560px;
  line-height: 1.6;
}

/* ─── About Page ─── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin: 3rem 0;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--gray-mid);
  margin-top: 2rem;
}

.stat-box {
  padding: 2rem;
  border-right: 1px solid var(--gray-mid);
  border-bottom: 1px solid var(--gray-mid);
  text-align: center;
}

.stat-box:nth-child(2n) { border-right: none; }
.stat-box:nth-last-child(-n+2) { border-bottom: none; }

.stat-box__number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 300;
  color: var(--red);
  line-height: 1;
  display: block;
  margin-bottom: 0.4rem;
}

.stat-box__label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-text);
}

/* ─── Bottom Navigation ─── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  z-index: 1000;
}

.bottom-nav__item {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0 1.4rem;
  height: 100%;
  display: flex;
  align-items: center;
  border-right: 1px solid rgba(255,255,255,0.08);
  transition: color 0.15s, background 0.15s;
}

.bottom-nav__item:first-child {
  border-left: 1px solid rgba(255,255,255,0.08);
}

.bottom-nav__item:hover,
.bottom-nav__item.active {
  color: var(--white);
  background: rgba(255,255,255,0.06);
  text-decoration: none;
}

.bottom-nav__item.active {
  color: var(--red);
}

/* ─── Site Logo / Brand ─── */
.site-brand {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  background: var(--white);
  border-bottom: 1px solid var(--gray-mid);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 999;
}

.site-brand__logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--black);
}

.site-brand__logo span {
  color: var(--red);
}

.site-brand__tagline {
  font-size: 0.72rem;
  color: var(--gray-text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ─── Main content offset for top bar ─── */
main {
  padding-top: 52px;
}

/* ─── Footer (minimal above bottom nav) ─── */
.site-footer {
  border-top: 1px solid var(--gray-mid);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
}

.site-footer__copy {
  font-size: 0.8rem;
  color: var(--gray-text);
}

.site-footer__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.site-footer__links a {
  font-size: 0.8rem;
  color: var(--gray-text);
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--black);
  text-decoration: underline;
  text-decoration-color: var(--red);
  text-underline-offset: 3px;
}

/* ─── Breadcrumb Navigation ─── */
.breadcrumb-nav {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--gray-mid);
  background: var(--white);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  font-size: 0.75rem;
  color: var(--gray-text);
  flex-wrap: wrap;
}

.breadcrumb__item a {
  color: var(--gray-text);
  text-decoration: none;
}

.breadcrumb__item a:hover {
  color: var(--red);
}

.breadcrumb__separator {
  color: var(--gray-mid);
  line-height: 1;
}

.breadcrumb__item--active {
  color: var(--black);
}

/* ─── Article Meta (date + author) ─── */
.article-meta {
  font-size: 0.78rem;
  color: var(--gray-text);
  margin-top: -0.8rem;
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}

/* ─── Responsive ─── */
@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero__text {
    padding: 5rem 1.5rem 2rem;
    order: 2;
  }

  .hero__image {
    height: 55vw;
    order: 1;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card:nth-child(n) {
    border-right: none;
    border-bottom: 1px solid var(--gray-mid);
  }

  .feature-card:last-child {
    border-bottom: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .bottom-nav {
    gap: 0;
  }

  .bottom-nav__item {
    padding: 0 0.7rem;
    font-size: 0.65rem;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr;
  }

  .stat-box:nth-child(n) {
    border-right: none;
    border-bottom: 1px solid var(--gray-mid);
  }

  .stat-box:last-child {
    border-bottom: none;
  }
}