/* ==========================================================================
   BOGOODSKI.dev — Styles
   ========================================================================== */

/* ---------- Font Import ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ---------- Custom Properties ---------- */
:root {
  --color-bg: #0c0f1a;
  --color-bg-elevated: #131729;
  --color-bg-card: #1a1f35;
  --color-bg-card-hover: #212745;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-accent: rgba(99, 179, 237, 0.25);
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-heading: #f1f5f9;
  --color-accent: #63b3ed;
  --color-accent-hover: #90cdf4;
  --color-accent-glow: rgba(99, 179, 237, 0.15);
  --color-accent-secondary: #a78bfa;
  --color-cta-bg: #63b3ed;
  --color-cta-text: #0c0f1a;
  --color-cta-hover: #90cdf4;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --container-max: 1140px;
  --radius: 10px;
  --radius-lg: 16px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 7rem;
}

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul {
  list-style: none;
}

/* ---------- Skip Link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  background: var(--color-cta-bg);
  color: var(--color-cta-text);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-sm);
}

/* ---------- Focus ---------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
  line-height: 1.4;
}

.btn-primary {
  background-color: var(--color-cta-bg);
  color: var(--color-cta-text);
}

.btn-primary:hover {
  background-color: var(--color-cta-hover);
  color: var(--color-cta-text);
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

.btn-secondary:hover {
  background-color: var(--color-accent-glow);
  color: var(--color-accent-hover);
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(12, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.logo-name {
  color: var(--color-text-heading);
}

.logo-dot {
  color: var(--color-accent);
}

/* Nav */
.nav-list {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-link {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s ease;
  padding: 0.25rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-heading);
}

.header-cta {
  font-size: 0.85rem;
  padding: 0.55rem 1.3rem;
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 110;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Mobile nav open state */
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    height: calc(100vh - 72px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0;
    background-color: var(--color-bg);
    padding-top: var(--space-lg);
    z-index: 200;
    overflow-y: auto;
  }

  .nav-list.open {
    display: flex;
  }

  .nav-list li {
    width: 100%;
    text-align: center;
  }

  .nav-link {
    display: block;
    font-size: 1.2rem;
    padding: var(--space-sm) var(--space-md);
  }
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  padding-top: calc(72px + var(--space-xl));
  padding-bottom: var(--space-xl);
  background: linear-gradient(170deg, var(--color-bg) 0%, #111632 50%, var(--color-bg) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text-heading);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
  max-width: 560px;
}

.hero-credibility {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  width: 100%;
  max-width: 360px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  object-fit: cover;
  aspect-ratio: 1 / 1;
  background-color: var(--color-bg-card);
  opacity: 0.7;
}

@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-sub {
    max-width: none;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-image {
    order: -1;
  }

  .hero-image img {
    max-width: 240px;
  }
}

/* ==========================================================================
   SECTIONS (shared)
   ========================================================================== */

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

.section-intro {
  max-width: 720px;
  margin-bottom: var(--space-lg);
}

.section-intro h2,
.section h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--color-text-heading);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

.section-intro p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   PROBLEM
   ========================================================================== */

.problem {
  background-color: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.problem h2 {
  max-width: 720px;
  margin-bottom: var(--space-md);
}

.problem-grid {
  margin-bottom: var(--space-md);
}

.problem-text {
  margin-bottom: var(--space-md);
}

.problem-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.problem-list {
  display: grid;
  gap: var(--space-sm);
  max-width: 680px;
}

.problem-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  color: var(--color-text);
  font-size: 0.98rem;
  line-height: 1.6;
}

.problem-icon {
  color: var(--color-accent);
  font-size: 0.5rem;
  margin-top: 0.55rem;
  flex-shrink: 0;
}

.problem-closer {
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 500;
  max-width: 720px;
  line-height: 1.7;
}

/* ==========================================================================
   SERVICES
   ========================================================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-md) var(--space-lg);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.service-card:hover {
  border-color: var(--color-border-accent);
  background-color: var(--color-bg-card-hover);
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: var(--space-xs);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   APPROACH
   ========================================================================== */

.approach {
  background-color: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}

.approach-card {
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.approach-number {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-mono);
  margin-bottom: var(--space-xs);
}

.approach-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: var(--space-xs);
}

.approach-card p {
  font-size: 0.93rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   EXPERIENCE
   ========================================================================== */

.experience-list {
  display: grid;
  gap: var(--space-sm);
  max-width: 780px;
}

.experience-list li {
  position: relative;
  padding-left: var(--space-md);
  color: var(--color-text);
  font-size: 0.98rem;
  line-height: 1.65;
}

.experience-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* ==========================================================================
   ARTICLE
   ========================================================================== */

.article-section {
  background: linear-gradient(170deg, var(--color-bg) 0%, #131832 100%);
}

.article-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  max-width: 720px;
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
}

.article-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.article-card h2 {
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.article-card p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

/* ==========================================================================
   WHO THIS IS FOR
   ========================================================================== */

.who-for {
  background-color: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.who-for h2 {
  margin-bottom: var(--space-lg);
}

.who-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-sm);
}

.who-card {
  padding: var(--space-md);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease;
}

.who-card:hover {
  border-color: var(--color-border-accent);
}

.who-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   ABOUT
   ========================================================================== */

.about-inner {
  max-width: 720px;
}

.about-content h2 {
  margin-bottom: var(--space-md);
}

.about-content p {
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-sm);
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   CONTACT
   ========================================================================== */

.contact {
  background: linear-gradient(170deg, #111632 0%, var(--color-bg) 100%);
  text-align: center;
}

.contact-inner {
  max-width: 640px;
}

.contact h2 {
  margin-bottom: var(--space-sm);
}

.contact-text {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.contact-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

.footer-brand .logo-name {
  font-size: 1.1rem;
  font-weight: 800;
}

.footer-brand .logo-dot {
  font-size: 1.1rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-disclaimer {
  max-width: 640px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  line-height: 1.6;
  margin-top: var(--space-xs);
}

/* ==========================================================================
   RESPONSIVE: Small screens
   ========================================================================== */

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.6rem;
  }

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

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

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

  .article-card {
    padding: var(--space-md);
  }

  .btn {
    width: 100%;
  }

  .hero-ctas {
    flex-direction: column;
  }

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

  .contact-ctas .btn {
    max-width: 280px;
  }
}