@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Custom base styles and utilities not covered by Tailwind */

/* Font smoothing for better typography */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ⚡ Bonus: Fade-in animation styles */
.animate-fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: all 0.6s ease-in-out;
}
/* Visible by default to prevent hidden content if JS doesn't run immediately */
.fade-in {
  opacity: 1;
  transform: none;
}

/* Sticky Navbar Shadow on Scroll - Controlled by main.js */
.navbar-scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.98); /* Near opaque white */
}

:root {
  --primary: #0077B6;
  --secondary: #00A86B;
  --accent: #7B61FF;
  --background: #F8FAFC;
  --foreground: #1E293B;
  --muted: #64748B;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--foreground);
  background-color: var(--background);
}

html { font-family: 'Inter', sans-serif !important; }
h1, h2, h3, h4, h5, h6 { font-family: inherit; }

/* Typography */
h1, .h1 { font-weight: 800; letter-spacing: -0.02em; }
h2, .h2 { font-weight: 700; letter-spacing: -0.01em; }
h3, .h3 { font-weight: 700; }
h4, .h4 { font-weight: 600; }

.lead { font-size: 1.125rem; color: var(--muted); }

/* Containers and sections */
.container { max-width: 1200px; }
.section { padding-top: 4rem; padding-bottom: 4rem; }
.section-lg { padding-top: 6rem; padding-bottom: 6rem; }

/* Cards */
.card { background: #fff; border-radius: 16px; box-shadow: 0 8px 24px rgba(2, 6, 23, 0.06); transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(2, 6, 23, 0.08); }
.card-body { padding: 1.25rem; }

/* Shadows */
.shadow-soft { box-shadow: 0 8px 24px rgba(2, 6, 23, 0.06); }
.shadow-hover:hover { box-shadow: 0 16px 40px rgba(2, 6, 23, 0.08); }

/* Glass effect */
.glass-effect { background: rgba(255,255,255,0.08); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.2); }

/* Chips / badges */
.chip { display: inline-flex; align-items: center; padding: .25rem .625rem; font-size: .75rem; border-radius: 9999px; background: #EEF2F6; color: var(--foreground); }
.badge { display: inline-flex; align-items: center; padding: .25rem .5rem; font-size: .75rem; border-radius: .5rem; background: #EEF2F6; color: var(--foreground); }

.text-primary { color: var(--primary) !important; }
.bg-primary { background-color: var(--primary) !important; }
.border-primary { border-color: var(--primary) !important; }

.text-secondary { color: var(--secondary) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.border-secondary { border-color: var(--secondary) !important; }

.text-accent { color: var(--accent) !important; }
.bg-accent { background-color: var(--accent) !important; }
.border-accent { border-color: var(--accent) !important; }

.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; border-radius: 9999px; transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background-color: var(--primary); color: #fff; }
.btn-primary:hover { box-shadow: 0 10px 25px rgba(0,119,182,.3); }
.btn-secondary { background-color: var(--secondary); color: #fff; }
.btn-secondary:hover { box-shadow: 0 10px 25px rgba(0,168,107,.3); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background-color: var(--primary); color: #fff; }

.nav-link { transition: color .2s ease; }
.nav-link:hover { color: var(--primary); }

a { color: var(--primary); }
a:hover { color: #005b8b; }

/* Aliases to align Tailwind-like class names used across pages */
.text-foreground { color: var(--foreground) !important; }
.text-text-dark { color: var(--foreground) !important; }
.text-muted { color: var(--muted) !important; }
.bg-background { background-color: var(--background) !important; }
.bg-foreground { background-color: var(--foreground) !important; }

/* === Centralized Animations & Utilities (migrated from inline styles) === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.animate-fade-in-up { animation: fadeInUp 0.8s ease-out forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.8s ease-out forwards; }
.animate-fade-in-right { animation: fadeInRight 0.8s ease-out forwards; }
.animate-float { animation: float 6s ease-in-out infinite; }
.animate-pulse-slow { animation: pulse 3s ease-in-out infinite; }

/* Gradient helpers matching theme tokens */
.gradient-bg { background: linear-gradient(135deg, rgba(0, 119, 182, 0.9), rgba(0, 168, 107, 0.8)); }
.gradient-bg-secondary { background: linear-gradient(135deg, rgba(123, 97, 255, 0.85), rgba(0, 119, 182, 0.85)); }
.hero-bg { 
  background: linear-gradient(135deg, rgba(0, 119, 182, 0.9), rgba(0, 168, 107, 0.8)),
                url('https://image.pollinations.ai/prompt/sustainable%20energy%20solar%20panels%20and%20wind%20turbines%2C%20modern%20corporate%20landing%20hero%2C%20clean%20and%20vibrant%2C%203%3A2');
  background-size: cover; 
  background-position: center; 
  background-attachment: fixed; 
}

/* Card & image hovers */
.card-hover { transition: all 0.3s ease; }
.card-hover:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); }
.product-card { transition: all 0.3s ease; border-radius: 16px; overflow: hidden; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); }
.product-image { transition: all 0.3s ease; }
.product-card:hover .product-image { transform: scale(1.05); }

/* Testimonial */
.testimonial-card { background: linear-gradient(135deg, #ffffff, #f8fafc); border-radius: 20px; padding: 2rem; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); transition: all 0.3s ease; }
.testimonial-card:hover { transform: translateY(-5px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15); }

/* Scroll reveal */
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease; }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }

/* Stat number gradient text */
.stat-number { font-size: 3rem; font-weight: 800; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* Service icon styles */
.service-icon { width: 80px; height: 80px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1.5rem; transition: all 0.3s ease; }
.service-icon:hover { transform: scale(1.1); }
.icon-blue { background: linear-gradient(135deg, rgba(0, 119, 182, 0.1), rgba(0, 119, 182, 0.2)); color: var(--primary); }
.icon-green { background: linear-gradient(135deg, rgba(0, 168, 107, 0.1), rgba(0, 168, 107, 0.2)); color: var(--secondary); }
.icon-purple { background: linear-gradient(135deg, rgba(123, 97, 255, 0.1), rgba(123, 97, 255, 0.2)); color: var(--accent); }

/* Loading overlay & spinner */
.loading { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, var(--primary), var(--secondary)); display: flex; align-items: center; justify-content: center; z-index: 9999; transition: opacity 0.5s ease; }
.loading.hidden { opacity: 0; pointer-events: none; }
.spinner { width: 50px; height: 50px; border: 3px solid rgba(255, 255, 255, 0.3); border-top: 3px solid white; border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Responsive tweaks */
@media (max-width: 768px) {
  .stat-number { font-size: 2rem; }
  .hero-bg { background-attachment: scroll; }
}

/* === Accessibility: focus-visible styles === */
:root {
  --focus-ring: 2px solid rgba(0,119,182,.6);
  --focus-offset: 2px;
}

a:focus-visible, button:focus-visible, .btn:focus-visible, .nav-link:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  box-shadow: 0 0 0 3px rgba(0,119,182,.15);
}

/* Utility to reveal skip link when focused (placed in header) */
.sr-only:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}