/* ========================================
   Yesel - Custom Styles
   STEM Education Website for Kenya
   ======================================== */

/* ----------------------------------------
   CSS Variables / Theme
   ---------------------------------------- */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #f59e0b;
  --success-color: #10b981;
  --info-color: #06b6d4;
  --warning-color: #f59e0b;
  --dark-color: #1e293b;
  --light-color: #f8fafc;
  --text-muted: #64748b;
}

/* ----------------------------------------
   Global Styles
   ---------------------------------------- */
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--dark-color);
  padding-top: 56px; /* For fixed navbar */
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--dark-color);
}

a {
  color: var(--primary-color);
  transition: all 0.3s ease;
}

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

/* ----------------------------------------
   Navbar
   ---------------------------------------- */
.navbar {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-size: 1.5rem;
}

.nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  transition: all 0.3s ease;
}

.nav-link:hover {
  transform: translateY(-2px);
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero-section {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  min-height: 90vh;
  padding-top: 80px;
}

.hero-illustration {
  animation: float 6s ease-in-out infinite;
}

.hero-illustration i {
  opacity: 0.9;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

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

/* ----------------------------------------
   Page Header (Inner Pages)
   ---------------------------------------- */
.page-header {
  padding-top: 80px;
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
}

/* ----------------------------------------
   Feature Cards
   ---------------------------------------- */
.feature-icon {
  width: 70px;
  height: 70px;
}

.card {
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1) !important;
}

/* ----------------------------------------
   Teaching Section Cards
   ---------------------------------------- */
.teach-card {
  background: var(--light-color);
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.teach-card:hover {
  border-color: var(--primary-color);
  background: white;
  box-shadow: 0 10px 40px rgba(37, 99, 235, 0.1);
}

/* ----------------------------------------
   Approach Cards
   ---------------------------------------- */
.approach-card {
  background: var(--light-color);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.approach-card:hover {
  background: white;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.approach-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  opacity: 0.2;
  line-height: 1;
}

/* ----------------------------------------
   Program Cards
   ---------------------------------------- */
.program-card {
  transition: all 0.3s ease;
}

.program-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15) !important;
}

.program-card .card-header {
  border-bottom: none;
}

/* ----------------------------------------
   Stat Cards
   ---------------------------------------- */
.stat-card {
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: scale(1.05);
}

/* ----------------------------------------
   Contact Form
   ---------------------------------------- */
.form-control,
.form-select {
  padding: 0.75rem 1rem;
  border: 2px solid #e2e8f0;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* ----------------------------------------
   Contact Info Card
   ---------------------------------------- */
.contact-info-card {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
}

/* ----------------------------------------
   Accordion (FAQ)
   ---------------------------------------- */
.accordion-button {
  font-weight: 600;
  color: var(--dark-color);
}

.accordion-button:not(.collapsed) {
  background-color: var(--light-color);
  color: var(--primary-color);
}

.accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  border-color: var(--primary-color);
}

/* ----------------------------------------
   Chatbot Styles
   ---------------------------------------- */
#chatbot-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
}

#chatbot-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
  transition: all 0.3s ease;
}

#chatbot-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37, 99, 235, 0.5);
}

#chatbot-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 380px;
  max-width: calc(100vw - 40px);
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chatbot-header {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
}

#chatbot-messages {
  height: 300px;
  overflow-y: auto;
  background: #f8fafc;
}

.message-bubble {
  max-width: 85%;
  word-wrap: break-word;
}

.bot-message .message-bubble {
  background: white;
  border: 1px solid #e2e8f0;
}

.user-message {
  text-align: right;
}

.user-message .message-bubble {
  background: var(--primary-color);
  color: white;
  display: inline-block;
  text-align: left;
}

.chatbot-input {
  background: white;
}

.quick-questions .btn {
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
}

/* Scrollbar for chatbot */
#chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

#chatbot-messages::-webkit-scrollbar-track {
  background: #f1f1f1;
}

#chatbot-messages::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 3px;
}

#chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
footer {
  background: var(--dark-color);
}

.social-links a {
  font-size: 1.25rem;
  transition: all 0.3s ease;
}

.social-links a:hover {
  transform: translateY(-3px);
  color: var(--secondary-color) !important;
}

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.bg-primary-subtle {
  background-color: rgba(37, 99, 235, 0.1) !important;
}

.bg-success-subtle {
  background-color: rgba(16, 185, 129, 0.1) !important;
}

.bg-warning-subtle {
  background-color: rgba(245, 158, 11, 0.1) !important;
}

.bg-info-subtle {
  background-color: rgba(6, 182, 212, 0.1) !important;
}

/* ----------------------------------------
   Responsive Adjustments
   ---------------------------------------- */
@media (max-width: 991.98px) {
  .hero-section {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero-section h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 767.98px) {
  .hero-section h1 {
    font-size: 2rem;
  }

  #chatbot-window {
    width: calc(100vw - 40px);
    right: -10px;
  }

  .contact-info-card {
    margin-bottom: 0;
  }
}

@media (max-width: 575.98px) {
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

  .display-4 {
    font-size: 2rem;
  }

  .display-5 {
    font-size: 1.75rem;
  }
}

/* ----------------------------------------
   Animation Classes
   ---------------------------------------- */
.fade-in {
  animation: fadeIn 0.5s ease;
}

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

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Selection color */
::selection {
  background: var(--primary-color);
  color: white;
}

/* ----------------------------------------
   Print Styles
   ---------------------------------------- */
@media print {
  .navbar,
  #chatbot-container,
  footer {
    display: none !important;
  }

  body {
    padding-top: 0;
  }
}