/* ==========================================================================
   FIXILA - CORE GLOBAL STYLESHEET
   Save as: /css/styles.css
   Used on: ALL PAGES (load this first)
   ========================================================================== */

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #ffffff;
  color: #1e293b;
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 100px; /* fixed navbar offset */
}

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

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: #1e293b;
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  line-height: 1.7;
  color: #475569;
}

/* ==========================================================================
   SHARED SECTION HEADER (used throughout site)
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 3.5rem;
  padding: 0 1rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #1e293b;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: #64748b;
  max-width: 780px;
  margin: 0 auto;
  line-height: 1.75;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ==========================================================================
   SUPPORT BUTTON (Fixed position)
   ========================================================================== */
.support-btn {
  position: fixed;
  right: 30px;
  bottom: 30px;
  background: #2563eb;
  color: #ffffff;
  padding: 1rem 1.5rem;
  border-radius: 50px;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
  z-index: 999;
  transition: transform 0.2s, box-shadow 0.2s;
}

.support-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.5);
}

/* ==========================================================================
   GLOBAL RESPONSIVE ADJUSTMENTS
   ========================================================================== */
@media (max-width: 768px) {
  body {
    padding-top: 80px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .container {
    padding: 0 1.5rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.3rem;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }
}