/* Digihand Website Styles */

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

:root {
  --color-primary: #0EA5E9;
  --color-primary-dark: #0369A1;
  --color-primary-light: #0284C7;
  --color-secondary: #10B981;
  --color-text: #1F2937;
  --color-text-light: #4B5563;
  --color-background: #EDE6E1;
  --color-background-alt: #E3DAD4;
  --color-border: #D9CEC7;
  --color-card: #F5F0ED;
  --glow-primary: 0 0 20px rgba(14, 165, 233, 0.2);
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

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

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

a:hover {
  text-decoration: underline;
}

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

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

section:nth-child(even) {
  background-color: var(--color-background-alt);
}

/* Navigation */
.navbar {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: 0.25rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo img {
  height: 100px;
  width: auto;
  display: block;
}

.logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links a.active {
  color: var(--color-primary);
  font-weight: 700;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 4px;
}

.nav-cta {
  background-color: var(--color-primary);
  color: white !important;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 6px;
  transition: background-color 0.2s;
}

.nav-cta:hover {
  background-color: var(--color-primary-dark);
}

/* Mobile menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-background);
    flex-direction: column;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav-links.active {
    display: flex;
  }
}

/* Hero Section */
.hero {
  padding: var(--spacing-xl) 0;
  text-align: center;
  background: linear-gradient(135deg, #EDE6E1 0%, #E3DAD4 100%);
  position: relative;
}

.hero-image {
  width: 100%;
  max-width: 900px;
  margin: var(--spacing-lg) auto 0;
  border-radius: 12px;
  box-shadow: var(--glow-primary);
}

/* Section Image */
.section-image {
  width: 100%;
  max-width: 800px;
  margin: var(--spacing-md) auto;
  border-radius: 12px;
  display: block;
}

/* Neural Network Spacer */
.neural-spacer {
  width: 100%;
  height: 120px;
  margin: 0;
  padding: 0;
  background-image: url('assets/neural-spacer.png');
  background-size: cover;
  background-position: center;
}

.hero h1 {
  font-size: 3rem;
  max-width: 800px;
  margin: 0 auto var(--spacing-md);
}

.hero .subhead {
  font-size: 1.25rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto var(--spacing-md);
}

.hero .supporting-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero .subhead {
    font-size: 1.1rem;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 6px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: white;
  text-decoration: none;
}

.btn-large {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1.1rem;
}

/* Content Sections */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.1rem;
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

@media (max-width: 768px) {
  .two-column {
    grid-template-columns: 1fr;
  }
}

/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.feature-card {
  background: #EDE6E1;
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--glow-primary);
}

.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.feature-card p {
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Differentiators */
.differentiators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
}

.differentiator-card {
  background: var(--color-background-alt);
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  transition: box-shadow 0.3s ease;
}

.differentiator-card:hover {
  box-shadow: var(--glow-primary);
}

.differentiator-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.differentiator-card p {
  color: var(--color-text-light);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Steps / How it Works */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  counter-reset: step-counter;
}

.step {
  position: relative;
  padding-left: 3.5rem;
}

.step::before {
  counter-increment: step-counter;
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}

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

/* Security Callout */
.security-callout {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 8px;
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.security-callout h3 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-xs);
}

.security-callout p {
  margin-bottom: 0;
  color: var(--color-text-light);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
  background: var(--color-background-alt);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

section:nth-child(even) table {
  background: #EEE6E2;
}

th, td {
  padding: var(--spacing-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

th {
  background-color: rgba(14, 165, 233, 0.1);
  font-weight: 600;
  color: var(--color-primary-light);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover {
  background-color: rgba(14, 165, 233, 0.05);
}

/* Pricing Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.pricing-card {
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  text-align: center;
  transition: box-shadow 0.3s ease;
}

.pricing-card:hover {
  box-shadow: var(--glow-primary);
}

.pricing-card h3 {
  color: var(--color-primary);
}

.pricing-card .price {
  font-size: 2rem;
  font-weight: 700;
  margin: var(--spacing-sm) 0;
  color: var(--color-text);
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-light);
}

.pricing-card ul {
  list-style: none;
  text-align: left;
  margin: var(--spacing-md) 0;
}

.pricing-card li {
  padding: var(--spacing-xs) 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-light);
}

.pricing-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 700;
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  background-color: var(--color-background);
  color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group .optional {
  color: var(--color-text-light);
  font-weight: 400;
  font-size: 0.9rem;
}

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-background-alt);
  padding: var(--spacing-lg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  text-align: center;
}

.cta-section h2 {
  color: white;
}

.cta-section p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
}

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

.cta-section .btn-primary:hover {
  background-color: var(--color-background-alt);
}

/* Link with arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary-light);
  font-weight: 500;
  margin-top: var(--spacing-sm);
}

.link-arrow:hover {
  gap: 0.75rem;
  color: var(--color-primary);
}

/* Beliefs / Values List */
.beliefs-list {
  list-style: none;
  max-width: 700px;
  margin: 0 auto;
}

.beliefs-list li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-light);
}

.beliefs-list li:last-child {
  border-bottom: none;
}

.beliefs-list strong {
  color: var(--color-primary-light);
}

/* Footer */
.footer {
  background-color: #1F2937;
  color: white;
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

.footer h4 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.footer p {
  color: rgba(255, 255, 255, 0.7);
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
}

.footer a:hover {
  color: white;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

/* Use Cases Grid */
.use-cases-section {
  margin-bottom: var(--spacing-lg);
}

.use-cases-section h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-primary);
}

/* Calculator placeholder */
.calculator-placeholder {
  background: var(--color-background-alt);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--color-text-light);
}

/* Use cases section for dark theme */
.use-cases-section h3 {
  color: var(--color-primary-light);
  border-bottom-color: var(--color-primary);
}

/* Utilities */
.text-center {
  text-align: center;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Animated Headline */
.animated-headline {
  position: relative;
  min-height: 4.5em;
}

.headline-text {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.headline-text.active {
  opacity: 1;
}