/* 
 * Braino LMS - Main Stylesheet
 * Brand Color Palette:
 * Primary: #2563EB | Secondary: #60A5FA | Accent: #0EA5E9
 * Background: #FFFFFF | Section Bg: #F8FAFC | Text: #1F2937
 */

/* ==========================================================================
   1. Google Fonts & CSS Custom Variables
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
  --font-main: 'Poppins', sans-serif;
  
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-secondary: #60A5FA;
  --color-accent: #0EA5E9;
  
  --color-bg-white: #FFFFFF;
  --color-bg-section: #F8FAFC;
  --color-bg-alt: #F1F5F9;
  
  --color-text-dark: #1F2937;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  
  --shadow-sm: 0 2px 4px rgba(31, 41, 55, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(37, 99, 235, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 35px -10px rgba(37, 99, 235, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 25px 50px -12px rgba(37, 99, 235, 0.22);
  
  --transition-fast: all 0.25s ease-in-out;
  --transition-normal: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
}

/* ==========================================================================
   2. Reset & General Styles
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

/* Lenis Smooth Scroll Styles */
html.lenis, html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

.lenis.lenis-scrolling iframe {
  pointer-events: none;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg-white);
  color: var(--color-text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-dark);
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

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

/* Custom Selection */
::selection {
  background-color: var(--color-secondary);
  color: #ffffff;
}

/* Section Wrapper Utilities */
.section-padding {
  padding: 90px 0;
}

.section-bg {
  background-color: var(--color-bg-section);
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
}

/* Section Header */
.section-header {
  margin-bottom: 50px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 650px;
  margin: 0 auto;
}

/* ==========================================================================
   3. Custom Buttons
   ========================================================================== */
.btn {
  font-family: var(--font-main);
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 12px;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 2px solid transparent;
}

.btn-primary-custom {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}

.btn-primary-custom:hover {
  background-color: var(--color-primary-hover);
  color: #FFFFFF;
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(37, 99, 235, 0.35);
}

.btn-outline-custom {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-custom:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

.btn-white-custom {
  background-color: #FFFFFF;
  color: var(--color-primary);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.btn-white-custom:hover {
  background-color: var(--color-bg-section);
  color: var(--color-primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   4. Navigation Bar
   ========================================================================== */
.navbar-braino {
  padding: 18px 0;
  transition: var(--transition-fast);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1050;
}

.navbar-braino.scrolled {
  padding: 12px 0;
  background-color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(31, 41, 55, 0.08);
}

.navbar-brand {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-brand .brand-logo-img {
  height: 44px;
  max-height: 44px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-fast);
}

.navbar-brand:hover .brand-logo-img {
  transform: scale(1.06);
}

.navbar-brand span.highlight {
  color: var(--color-primary);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-dark);
  padding: 8px 16px !important;
  margin: 0 4px;
  border-radius: 8px;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.navbar-toggler {
  border: none;
  padding: 8px 12px;
  font-size: 1.4rem;
  color: var(--color-primary);
  background-color: var(--color-bg-section);
  border-radius: 8px;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

/* ==========================================================================
   5. Hero Section
   ========================================================================== */
.hero-section {
  padding: 130px 0 90px;
  background: radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.12) 0%, rgba(248, 250, 252, 0) 60%),
              linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  position: relative;
  overflow: hidden;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-title .text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-paragraph {
  font-size: 1.15rem;
  margin-bottom: 32px;
  max-width: 540px;
  color: var(--color-text-muted);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image-wrapper {
  position: relative;
  text-align: center;
}

.floating-hero-img {
  animation: floatAnim 4.5s ease-in-out infinite;
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 30px rgba(37, 99, 235, 0.15));
}

@keyframes floatAnim {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-16px); }
  100% { transform: translateY(0px); }
}

/* ==========================================================================
   6. Features Section
   ========================================================================== */
.feature-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  border: 1px solid var(--color-border);
  transition: var(--transition-normal);
  height: 100%;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(37, 99, 235, 0.2);
}

.feature-icon-box {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
  transition: var(--transition-fast);
}

.feature-card:hover .feature-icon-box {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #FFFFFF;
  transform: scale(1.05);
}

.feature-card-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.feature-card-desc {
  font-size: 0.975rem;
  margin-bottom: 0;
}

/* ==========================================================================
   7. Why Choose Braino Section
   ========================================================================== */
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.checklist-item:hover {
  background-color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.checklist-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(37, 99, 235, 0.12);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.checklist-text h5 {
  font-size: 1.1rem;
  margin-bottom: 2px;
}

.checklist-text p {
  font-size: 0.875rem;
  margin: 0;
}

/* ==========================================================================
   8. Statistics Counter Section
   ========================================================================== */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1D4ED8 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  pointer-events: none;
}

.stats-card {
  text-align: center;
  padding: 24px 16px;
}

.stat-number {
  font-size: 3.25rem;
  font-weight: 800;
  margin-bottom: 4px;
  color: #FFFFFF;
  line-height: 1;
}

.stat-label {
  font-size: 1.1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 0;
}

/* ==========================================================================
   9. Call to Action Banner
   ========================================================================== */
.cta-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  box-shadow: 0 25px 60px -15px rgba(37, 99, 235, 0.15);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.cta-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 14px;
}

/* ==========================================================================
   10. Page Hero Banners (About & Contact)
   ========================================================================== */
.page-hero {
  padding: 130px 0 70px;
  background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.page-hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.breadcrumb-custom {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.breadcrumb-custom a {
  color: var(--color-primary);
  font-weight: 500;
}

/* ==========================================================================
   11. About Page Cards (Mission, Vision, Values, Team)
   ========================================================================== */
.info-box-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  height: 100%;
}

.info-box-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-secondary);
}

.team-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.team-img-wrapper {
  padding: 24px 24px 0;
  background-color: var(--color-bg-section);
}

.team-img-wrapper img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #FFFFFF;
  box-shadow: var(--shadow-md);
}

.team-info {
  padding: 24px;
}

.team-name {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.team-role {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 12px;
}

.team-socials {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.team-social-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--color-bg-section);
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.team-social-icon:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* ==========================================================================
   12. Contact Page Elements
   ========================================================================== */
.contact-info-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 24px 20px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition-fast);
  height: 100%;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.contact-info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-secondary);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-form-wrapper {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.form-control, .form-select {
  font-family: var(--font-main);
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.form-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-dark);
  margin-bottom: 6px;
}

/* Map Container Placeholder */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  min-height: 400px;
  height: 100%;
  position: relative;
  background-color: #E2E8F0;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   13. Footer
   ========================================================================== */
.footer {
  background-color: #0F172A;
  color: #94A3B8;
  padding-top: 80px;
  padding-bottom: 30px;
  font-size: 0.925rem;
}

.footer-brand {
  color: #FFFFFF;
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .brand-logo-img {
  height: 36px;
  max-height: 36px;
  width: auto;
  object-fit: contain;
}

.footer-desc {
  color: #94A3B8;
  margin-bottom: 24px;
}

.footer .text-muted,
.footer-newsletter-text {
  color: #CBD5E1 !important;
}

.footer-title {
  color: #FFFFFF;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #94A3B8;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-secondary);
  padding-left: 6px;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.footer-social-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: #1E293B;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.footer-social-btn:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 24px;
  margin-top: 60px;
}

.footer-legal-links a {
  color: #94A3B8;
  margin-left: 20px;
}

.footer-legal-links a:hover {
  color: var(--color-secondary);
}

/* ==========================================================================
   14. Animations & Utilities
   ========================================================================== */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.active {
  opacity: 1;
  transform: translateY(0);
}

/* Scroll To Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: none;
  outline: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
  cursor: pointer;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  transition: var(--transition-normal);
}

.scroll-top-btn.show {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.scroll-top-btn:hover {
  background-color: var(--color-primary-hover);
  transform: scale(1.1);
}