/* ============================================
   PODCONSULT CONSULTANCY - MAIN STYLESHEET
   Modern, Tech-Focused Design
   ============================================ */

/* ========== ROOT & VARIABLES ========== */
:root {
  --primary-dark: #0f1419;
  --primary-darker: #0a0d12;
  --accent-blue: #0066cc;
  --accent-light: #00d4ff;
  --text-primary: #ffffff;
  --text-secondary: #b0b8c1;
  --text-muted: #7a8a99;
  --bg-card: #1a2332;
  --bg-hover: #2a3c52;
  --border-color: #2a3c52;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* ========== RESET & BASE ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--primary-dark);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
}

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

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5, h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

small {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ========== LAYOUT ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.flex {
  display: flex;
  gap: var(--spacing-md);
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

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

/* ========== SPACING UTILITIES ========== */
.py-2 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-3 { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }
.py-4 { padding-top: var(--spacing-3xl); padding-bottom: var(--spacing-3xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mt-2 { margin-top: var(--spacing-md); }

/* ========== NAVIGATION ========== */
header {
  background-color: var(--primary-darker);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-light);
  transition: color var(--transition-fast);
}

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

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

.nav-menu a {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--accent-light);
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-blue);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 2px;
  background: var(--accent-light);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ========== HERO SECTION ========== */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-card) 100%);
  padding: var(--spacing-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

/* ========== BUTTONS ========== */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: var(--text-primary);
}

.btn-primary:hover {
  background-color: var(--accent-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 100, 200, 0.3);
}

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

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

.btn-small {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.9rem;
}

/* ========== CARDS ========== */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--accent-blue);
  background-color: var(--bg-hover);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 100, 200, 0.2);
}

.card-header {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--accent-light);
}

.card-body {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.card-footer {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-md);
}

/* ========== SECTIONS ========== */
section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-subtitle {
  color: var(--accent-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
}

/* ========== FORMS ========== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 100, 200, 0.1);
}

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

input.error,
textarea.error {
  border-color: var(--error);
}

.error-message {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: var(--spacing-sm);
}

.success-message {
  color: var(--success);
  background-color: rgba(16, 185, 129, 0.1);
  border-left: 4px solid var(--success);
  padding: var(--spacing-md);
  border-radius: 4px;
  margin-bottom: var(--spacing-md);
}

/* ========== FOOTER ========== */
footer {
  background-color: var(--primary-darker);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  margin-bottom: var(--spacing-md);
  color: var(--accent-light);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--text-secondary);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
}

/* ========== SERVICE SECTION ========== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.service-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 212, 255, 0.05) 100%);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(0, 100, 200, 0.25);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.service-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--accent-light);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* ========== TESTIMONIALS ========== */
.testimonial {
  background-color: var(--bg-card);
  border-left: 4px solid var(--accent-blue);
  padding: var(--spacing-xl);
  border-radius: 4px;
  margin-bottom: var(--spacing-lg);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

.testimonial-author {
  font-weight: 600;
  color: var(--accent-light);
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ========== TAGS & BADGES ========== */
.tag {
  display: inline-block;
  background-color: var(--bg-hover);
  color: var(--accent-light);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 20px;
  font-size: 0.875rem;
  margin-right: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.badge {
  display: inline-block;
  background-color: var(--accent-blue);
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-base) ease-out;
}

.slide-in {
  animation: slideInRight var(--transition-base) ease-out;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
  }

  .nav-menu {
    display: none;
    position: fixed;
    left: 0;
    top: 60px;
    flex-direction: column;
    background-color: var(--primary-darker);
    width: 100%;
    text-align: center;
    padding: var(--spacing-xl) 0;
    gap: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
  }

  .nav-menu.active {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -7px);
  }

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

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

  .btn {
    width: 100%;
  }

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.4rem;
  }

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

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

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

  .flex {
    flex-direction: column;
  }
}

/* ========== UTILITY CLASSES ========== */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--text-muted);
}

.text-accent {
  color: var(--accent-light);
}

.bg-dark {
  background-color: var(--primary-darker);
}

.hidden {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue);
}