/*==========================================================================
   EduCore — Shared Enterprise CSS (SEO & Core Web Vitals Optimized)
   SUBLIME ENTERPRISES | Smart Tool For A Smart School
   ==========================================================================*/

:root {
  --ec-navy: #0f172a;
  --ec-navy-light: #1e293b;
  --ec-blue: #0284c7;
  --ec-blue-light: #38bdf8;
  --ec-blue-dark: #0369a1;
  --ec-emerald: #10b981;
  --ec-emerald-light: #34d399;
  --ec-amber: #f59e0b;
  --ec-purple: #8b5cf6;
  --ec-slate-50: #f8fafc;
  --ec-slate-100: #f1f5f9;
  --ec-slate-200: #e2e8f0;
  --ec-slate-300: #cbd5e1;
  --ec-slate-400: #94a3b8;
  --ec-slate-500: #64748b;
  --ec-slate-600: #475569;
  --ec-slate-700: #334155;
  --ec-slate-800: #1e293b;
  --ec-slate-900: #0f172a;
  --ec-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ec-radius-sm: 8px;
  --ec-radius-md: 12px;
  --ec-radius-lg: 16px;
  --ec-radius-xl: 24px;
  --ec-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --ec-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
  --ec-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --ec-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
  --ec-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-family: var(--ec-font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ec-slate-900);
  background-color: var(--ec-slate-50);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--ec-blue);
  text-decoration: none;
  transition: var(--ec-transition);
}

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

/* ==========================================================================
   TOP STICKY NAVBAR
   ========================================================================== */
.ec-top-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.ec-nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.ec-brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #ffffff !important;
}

.ec-brand-logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(56, 189, 248, 0.4));
}

.ec-brand-text {
  display: flex;
  flex-direction: column;
}

.ec-brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ec-brand-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(56, 189, 248, 0.2);
  color: var(--ec-blue-light);
  border: 1px solid rgba(56, 189, 248, 0.4);
  padding: 2px 6px;
  border-radius: 9999px;
  letter-spacing: 0.5px;
}

.ec-brand-tagline {
  font-size: 11px;
  color: var(--ec-slate-400);
  font-weight: 500;
}

.ec-desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.ec-nav-item {
  color: var(--ec-slate-300) !important;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--ec-radius-sm);
  transition: var(--ec-transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.ec-nav-item:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.08);
}

.ec-nav-item.active {
  color: var(--ec-blue-light) !important;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.ec-nav-cta {
  background: linear-gradient(135deg, var(--ec-blue-light) 0%, var(--ec-blue) 100%);
  color: #0f172a !important;
  font-size: 13px;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: var(--ec-radius-sm);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35);
  margin-left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--ec-transition);
}

.ec-nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

/* Mobile Toggle */
.ec-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 8px 12px;
  border-radius: var(--ec-radius-sm);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

.ec-mobile-menu {
  display: none;
  background: var(--ec-navy);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 20px 24px;
}

.ec-mobile-menu.open {
  display: block;
}

.ec-mobile-menu a {
  display: block;
  color: var(--ec-slate-300);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 14px;
  border-radius: var(--ec-radius-sm);
  margin-bottom: 4px;
}

.ec-mobile-menu a:hover,
.ec-mobile-menu a.active {
  color: #ffffff;
  background: rgba(56, 189, 248, 0.12);
}

.ec-mobile-menu .ec-mobile-cta {
  margin-top: 12px;
  background: var(--ec-blue);
  color: #ffffff !important;
  text-align: center;
  font-weight: 700;
  padding: 12px;
}

@media (max-width: 992px) {
  .ec-desktop-nav {
    display: none;
  }
  .ec-mobile-toggle {
    display: block;
  }
}

/* ==========================================================================
   BREADCRUMBS
   ========================================================================== */
.ec-breadcrumbs {
  max-width: 1160px;
  margin: 16px auto 0;
  padding: 0 20px;
}

.ec-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  padding: 8px 16px;
  margin: 0;
  background: #ffffff;
  border: 1px solid var(--ec-slate-200);
  border-radius: var(--ec-radius-sm);
  font-size: 13px;
  color: var(--ec-slate-500);
}

.ec-breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.ec-breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: var(--ec-slate-400);
}

.ec-breadcrumbs a {
  color: var(--ec-blue);
  font-weight: 500;
}

.ec-breadcrumbs a:hover {
  text-decoration: underline;
}

.ec-breadcrumbs [aria-current="page"] {
  color: var(--ec-slate-800);
  font-weight: 600;
}

/* ==========================================================================
   ENTERPRISE FOOTER
   ========================================================================== */
.ec-footer {
  background: var(--ec-navy);
  color: var(--ec-slate-400);
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.ec-footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px 30px;
}

.ec-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

@media (max-width: 992px) {
  .ec-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 600px) {
  .ec-footer-grid {
    grid-template-columns: 1fr;
  }
}

.ec-footer-brand h3 {
  color: #ffffff;
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ec-footer-brand p {
  color: var(--ec-slate-400);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 16px;
}

.ec-footer-col h4 {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 18px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ec-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ec-footer-links li {
  margin-bottom: 10px;
}

.ec-footer-links a {
  color: var(--ec-slate-400);
  font-size: 14px;
  transition: var(--ec-transition);
}

.ec-footer-links a:hover {
  color: var(--ec-blue-light);
  padding-left: 4px;
}

.ec-footer-contact p {
  margin: 0 0 10px;
  line-height: 1.6;
}

.ec-footer-contact a {
  color: var(--ec-blue-light);
  font-weight: 600;
}

.ec-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 25px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: var(--ec-slate-500);
}

.ec-footer-bottom-links {
  display: flex;
  gap: 20px;
}

.ec-footer-bottom-links a {
  color: var(--ec-slate-500);
}

.ec-footer-bottom-links a:hover {
  color: var(--ec-blue-light);
}