/* Critical CSS - Above the fold styles only */

/* Load variables first */
@import url('./base/variables.css');

/* Critical layout styles */
.container {
  width: 100%;
  padding-right: var(--space-4);
  padding-left: var(--space-4);
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container { max-width: 540px; }
}

@media (min-width: 768px) {
  .container { 
    max-width: 720px;
    padding-right: var(--space-6);
    padding-left: var(--space-6);
  }
}

@media (min-width: 992px) {
  .container { max-width: 960px; }
}

@media (min-width: 1200px) {
  .container { max-width: 1140px; }
}

@media (min-width: 1400px) {
  .container { max-width: 1320px; }
}

/* Critical hero section styles */
.hero-section {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-900) 100%);
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(56, 178, 172, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

/* Critical navigation styles */
.navbar {
  background: rgba(26, 54, 93, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-3) 0;
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-white) !important;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--text-white) !important;
}

/* Critical button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  line-height: 1.5;
}

.btn-primary {
  background-color: var(--primary-600);
  color: var(--text-white);
  border-color: var(--primary-600);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-700);
  border-color: var(--primary-700);
  color: var(--text-white);
}

.btn-light {
  background-color: var(--text-white);
  color: var(--primary-700);
  border-color: var(--text-white);
}

.btn-light:hover,
.btn-light:focus {
  background-color: var(--gray-100);
  border-color: var(--gray-100);
  color: var(--primary-800);
}

.btn-outline-light {
  background-color: transparent;
  color: var(--text-white);
  border-color: var(--text-white);
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  background-color: var(--text-white);
  color: var(--primary-700);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* Fix for icon backgrounds in buttons - prevent white square artifacts */
.btn i,
.btn .bi,
.btn [class^="bi-"],
.btn [class*=" bi-"] {
  background: none !important;
  background-color: transparent !important;
  background-image: none !important;
}

.btn i::before,
.btn i::after,
.btn .bi::before,
.btn .bi::after,
.btn [class^="bi-"]::before,
.btn [class^="bi-"]::after,
.btn [class*=" bi-"]::before,
.btn [class*=" bi-"]::after {
  background: none !important;
  background-color: transparent !important;
  background-image: none !important;
}

/* Critical responsive utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }

@media (min-width: 576px) {
  .d-sm-none { display: none !important; }
  .d-sm-block { display: block !important; }
  .d-sm-inline { display: inline !important; }
}

@media (min-width: 768px) {
  .d-md-none { display: none !important; }
  .d-md-block { display: block !important; }
  .d-md-inline { display: inline !important; }
  .d-md-flex { display: flex !important; }
}

@media (min-width: 992px) {
  .d-lg-none { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-lg-inline { display: inline !important; }
  .d-lg-flex { display: flex !important; }
}

/* Critical spacing */
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.py-5 { padding-top: var(--space-20) !important; padding-bottom: var(--space-20) !important; }

/* Critical text utilities */
.text-white { color: var(--text-white) !important; }
.text-center { text-align: center !important; }
.fw-bold { font-weight: var(--font-weight-bold) !important; }

/* Critical grid system */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: calc(var(--space-3) * -1);
  margin-left: calc(var(--space-3) * -1);
}

.col {
  flex: 1 0 0%;
  padding-right: var(--space-3);
  padding-left: var(--space-3);
}

.col-12 {
  flex: 0 0 100%;
  max-width: 100%;
  padding-right: var(--space-3);
  padding-left: var(--space-3);
}

@media (min-width: 992px) {
  .col-lg-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding-right: var(--space-3);
    padding-left: var(--space-3);
  }
}

/* Critical animation for hero */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* Critical loading state */
.loading-skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}