/* ============================================
   BOHLMANN.IO - MAIN STYLESHEET
   Clean, professional, technical founder aesthetic
   ============================================ */

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color Palette */
  --color-primary: #0984e3;
  --color-primary-dark: #0652a1;
  --color-dark: #1a1a2e;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f6fa;
  --color-border: #dfe6e9;
  --color-success: #00b894;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;

  /* Layout */
  --container-max-width: 1200px;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.75rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

strong {
  font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
}

/* ============================================
   LAYOUT
   ============================================ */

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

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

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.divider {
  width: 80px;
  height: 4px;
  background-color: var(--color-primary);
  margin: var(--spacing-md) auto;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: var(--font-weight-semibold);
  text-align: center;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(9, 132, 227, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn-secondary:hover {
  background-color: var(--color-dark);
  color: white;
  transform: translateY(-2px);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #f5f6fa 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-title {
  font-size: 4rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-dark);
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.hero-tagline {
  font-size: 1.75rem;
  color: var(--color-text);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  line-height: 1.5;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   PROBLEM STATEMENT SECTION
   ============================================ */

.problem {
  background-color: var(--color-bg-alt);
  text-align: center;
}

.problem-list {
  list-style: none;
  max-width: 500px;
  margin: 0 auto var(--spacing-md);
}

.problem-list li {
  padding: var(--spacing-xs) 0;
  font-size: 1.2rem;
  color: var(--color-text-light);
}

.problem-statement {
  font-size: 1.3rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.solution-statement {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
  margin-top: var(--spacing-md);
}

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

.approach {
  background-color: var(--color-bg);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.approach-item {
  text-align: center;
  padding: var(--spacing-md);
}

.approach-number {
  width: 60px;
  height: 60px;
  background-color: var(--color-primary);
  color: white;
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.approach-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark);
}

.approach-description {
  font-size: 1.1rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.approach-footer {
  text-align: center;
  font-size: 1.3rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
  font-style: italic;
}

/* ============================================
   WORK SECTION
   ============================================ */

.work {
  background-color: var(--color-bg-alt);
}

.work-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  margin-bottom: var(--spacing-xxl);
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.work-item:last-child {
  margin-bottom: 0;
}

.work-item-reverse {
  grid-template-columns: 1fr 1fr;
}

.work-item-reverse .work-content {
  order: 2;
}

.work-item-reverse .work-image-placeholder {
  order: 1;
}

.work-title {
  font-size: 2rem;
  color: var(--color-dark);
  margin-bottom: var(--spacing-xs);
}

.work-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-md);
}

.work-description {
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

.work-result {
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-sm);
  background-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-success);
  border-radius: 4px;
}

.work-tech {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
}

.work-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

.work-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  border-radius: var(--border-radius);
  font-weight: var(--font-weight-medium);
  transition: var(--transition);
}

.work-link:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.work-image-placeholder {
  position: relative;
  background-color: var(--color-bg-alt);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 350px;
}

.work-image-placeholder img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 1;
}

/* ============================================
   EXPERTISE SECTION
   ============================================ */

.expertise {
  background-color: var(--color-bg);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.expertise-column {
  padding: var(--spacing-md);
}

.expertise-category {
  font-size: 1.5rem;
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 3px solid var(--color-primary);
}

.expertise-list {
  list-style: none;
}

.expertise-list li {
  padding: var(--spacing-xs) 0;
  font-size: 1.1rem;
  color: var(--color-text);
  padding-left: 1.5rem;
  position: relative;
}

.expertise-list li:before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.expertise-footer {
  text-align: center;
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-md);
  font-style: italic;
}

/* ============================================
   CLIENTS SECTION
   ============================================ */

.clients {
  background-color: var(--color-bg-alt);
  text-align: center;
}

.clients-list {
  list-style: none;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  text-align: left;
}

.clients-list li {
  display: flex;
  align-items: flex-start;
  padding: var(--spacing-sm) 0;
  font-size: 1.2rem;
  color: var(--color-text);
}

.check-icon {
  color: var(--color-success);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  margin-right: var(--spacing-sm);
  flex-shrink: 0;
}

.clients-details {
  max-width: 600px;
  margin: 0 auto;
  margin-top: var(--spacing-md);
}

.clients-details p {
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
  background-color: var(--color-bg);
  text-align: center;
}

.cta-description {
  font-size: 1.3rem;
  color: var(--color-text);
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

.cta-email {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-md);
}

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

.footer {
  background-color: var(--color-dark);
  color: white;
  text-align: center;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-name {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xs);
}

.footer-location {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-link {
  color: white;
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.footer-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-primary);
}

.footer-copyright {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--spacing-md);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets and small desktops */
@media (max-width: 1024px) {
  :root {
    --spacing-xxl: 4rem;
    --spacing-xl: 3rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .section-title {
    font-size: 2rem;
  }
}

/* Tablets */
@media (max-width: 768px) {
  :root {
    font-size: 16px;
    --spacing-xxl: 3rem;
    --spacing-xl: 2rem;
    --spacing-lg: 2rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-tagline {
    font-size: 1.3rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .work-item,
  .work-item-reverse {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .work-item-reverse .work-content {
    order: 1;
  }

  .work-item-reverse .work-image-placeholder {
    order: 2;
  }

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

/* Mobile phones */
@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero {
    min-height: 80vh;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-tagline {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

  .work-item {
    padding: var(--spacing-md);
  }
}

/* ============================================
   ANIMATIONS & INTERACTIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero,
.section-title {
  animation: fadeIn 0.8s ease-out;
}

/* Smooth scroll behavior for anchor links */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .hero-cta,
  .cta,
  .footer-links {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  section {
    page-break-inside: avoid;
  }
}