/* ==========================================================
   Meridian Consulting LLC — Design System
   Minimalist Authority Style
   ========================================================== */

/* --- Custom Properties --- */
:root {
  --color-primary: #0f2b46;
  --color-primary-light: #1a3d5c;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-strip: #0f2b46;
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-white: #ffffff;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1.0625rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.75rem;
  --font-size-4xl: 3.5rem;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  --spacing-3xl: 8rem;

  --max-width: 980px;
  --max-width-narrow: 720px;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

p {
  color: var(--color-text-secondary);
  max-width: 65ch;
}

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

.container--narrow {
  max-width: var(--max-width-narrow);
}

section {
  padding: var(--spacing-3xl) 0;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================
   BLOCK 1 — HERO
   ========================================================== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
  position: relative;
  background: var(--color-bg);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15, 43, 70, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  opacity: 0;
  animation: fadeInUp 0.8s 0.2s forwards;
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  opacity: 0;
  animation: fadeInUp 0.8s 0.4s forwards;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  opacity: 0;
  animation: fadeInUp 0.8s 0.6s forwards;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2.25rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: 6px;
  transition: all var(--transition-base);
  opacity: 0;
  animation: fadeInUp 0.8s 0.8s forwards;
}

.hero__cta:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(15, 43, 70, 0.15);
}

.hero__cta svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

.hero__cta:hover svg {
  transform: translateX(3px);
}

/* ==========================================================
   BLOCK 2 — POSITIONING STRIP
   ========================================================== */
.positioning-strip {
  background: var(--color-bg-strip);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
}

.positioning-strip__text {
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  max-width: none;
}

/* ==========================================================
   BLOCK 3 — ABOUT
   ========================================================== */
.about {
  background: var(--color-bg);
}

.about__intro {
  font-size: var(--font-size-lg);
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  max-width: 65ch;
}

.about__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.about__focus-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: all var(--transition-base);
}

.about__focus-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 12px rgba(15, 43, 70, 0.06);
}

.about__focus-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 43, 70, 0.05);
  border-radius: 8px;
  color: var(--color-primary);
}

.about__focus-icon svg {
  width: 20px;
  height: 20px;
}

.about__focus-label {
  font-weight: 600;
  font-size: var(--font-size-base);
  color: var(--color-primary);
}

.about__disclaimer {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  font-style: italic;
}

/* ==========================================================
   BLOCK 4 — FOCUS AREAS
   ========================================================== */
.focus-areas {
  background: var(--color-bg-alt);
}

.focus-areas__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.focus-areas__header h2 {
  margin-bottom: var(--spacing-xs);
}

.focus-areas__header p {
  margin: 0 auto;
  color: var(--color-text-muted);
}

.focus-areas__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.focus-card {
  background: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-lg);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  position: relative;
}

.focus-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  border-radius: 12px 12px 0 0;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.focus-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(15, 43, 70, 0.08);
  border-color: transparent;
}

.focus-card:hover::before {
  opacity: 1;
}

.focus-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 43, 70, 0.06);
  border-radius: 12px;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.focus-card__icon svg {
  width: 24px;
  height: 24px;
}

.focus-card h3 {
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.focus-card p {
  font-size: var(--font-size-base);
  line-height: 1.7;
}

/* ==========================================================
   BLOCK 5 — CURRENT MODE
   ========================================================== */
.current-mode {
  background: var(--color-bg);
}

.current-mode__inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.current-mode__text {
  font-size: var(--font-size-lg);
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.current-mode__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.current-mode__list-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-alt);
  border-radius: 8px;
  border-left: 3px solid var(--color-primary);
}

.current-mode__list-item svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.current-mode__footnote {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
}

/* ==========================================================
   BLOCK 6 — FOUNDER
   ========================================================== */
.founder {
  background: var(--color-bg-alt);
}

.founder__inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  text-align: center;
}

.founder__avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0 auto var(--spacing-lg);
  letter-spacing: -0.02em;
}

.founder__name {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.founder__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.founder__role {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

.founder__bio {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 55ch;
  margin: 0 auto;
}

/* ==========================================================
   BLOCK 7 — COLLABORATION CTA
   ========================================================== */
.collaboration {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.collaboration h2 {
  color: var(--color-white);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xl);
}

.collaboration__topics {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.collaboration__topic {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 100px;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.9);
  transition: all var(--transition-base);
}

.collaboration__topic:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.35);
}

.collaboration__email-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.collaboration__email {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-white);
  transition: opacity var(--transition-base);
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 4px;
}

.collaboration__email:hover {
  opacity: 0.85;
  border-bottom-color: rgba(255, 255, 255, 0.6);
}

.collaboration__email svg {
  width: 22px;
  height: 22px;
}

/* ==========================================================
   BLOCK 8 — FOOTER
   ========================================================== */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.site-footer__disclaimer {
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
}

.site-footer__disclaimer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin: 0 auto;
}

.site-footer__bottom {
  padding: var(--spacing-md) var(--spacing-md);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.site-footer__bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0 auto;
}

.site-footer__bottom span {
  margin: 0 0.25rem;
  color: var(--color-border);
}

/* ==========================================================
   ANIMATIONS
   ========================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Staggered reveal for grids */
.focus-areas__grid .reveal:nth-child(1) { transition-delay: 0s; }
.focus-areas__grid .reveal:nth-child(2) { transition-delay: 0.1s; }
.focus-areas__grid .reveal:nth-child(3) { transition-delay: 0.2s; }
.focus-areas__grid .reveal:nth-child(4) { transition-delay: 0.3s; }

.about__grid .reveal:nth-child(1) { transition-delay: 0s; }
.about__grid .reveal:nth-child(2) { transition-delay: 0.08s; }
.about__grid .reveal:nth-child(3) { transition-delay: 0.16s; }
.about__grid .reveal:nth-child(4) { transition-delay: 0.24s; }

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2.25rem;
    --font-size-3xl: 1.875rem;
    --font-size-2xl: 1.5rem;
    --font-size-xl: 1.25rem;
  }

  .hero {
    min-height: 80vh;
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  section {
    padding: var(--spacing-2xl) 0;
  }

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

  .focus-areas__grid {
    grid-template-columns: 1fr;
  }

  .collaboration__topics {
    flex-direction: column;
    align-items: center;
  }

  .collaboration__email {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-4xl: 1.875rem;
    --font-size-2xl: 1.375rem;
  }

  .hero {
    min-height: 70vh;
  }

  .hero__cta {
    width: 100%;
    justify-content: center;
  }

  .focus-card {
    padding: var(--spacing-lg) var(--spacing-md);
  }
}