/**
 * JavaNova Academy - LAYOUT-FIXED Theme CSS System
 * 
 * Fixed version with proper navbar positioning:
 * - Desktop: Theme toggle at far right of navbar
 * - Mobile: Menu toggle to the right of theme button
 * - All enhanced animations and features preserved
 */

/* ===== VARIABLES ===== */

:root {
  /* Default Light Theme Variables */
  --theme-bg-primary: #ffffff;
  --theme-bg-secondary: #f8f9fa;
  --theme-bg-tertiary: #e9ecef;
  --theme-text-primary: #0a0a18;
  --theme-text-secondary: #333333;
  --theme-text-tertiary: #666666;
  --theme-text-muted: #999999;
  --theme-accent-primary: #ff8c42;
  --theme-accent-secondary: #8b5cf6;
  --theme-accent-success: #10b981;
  --theme-accent-warning: #f59e0b;
  --theme-accent-error: #ef4444;
  --theme-accent-info: #06b6d4;
  --theme-border-primary: rgba(0, 0, 0, 0.1);
  --theme-border-secondary: rgba(0, 0, 0, 0.05);
  --theme-shadow-primary: rgba(0, 0, 0, 0.15);
  --theme-shadow-secondary: rgba(0, 0, 0, 0.08);
  --theme-navbar-bg: rgba(255, 255, 255, 0.95);
  --theme-card-bg: #ffffff;

  /* ENHANCED: Footer variables */
  --theme-footer-bg: #f8f9fa;
  --theme-footer-text: #0a0a18;
  --theme-footer-text-muted: #666666;
  --theme-footer-border: rgba(0, 0, 0, 0.1);

  /* Transition settings */
  --theme-transition: all 0.3s ease;
}

/* ===== THEME OVERRIDES ===== */
[data-theme="dark"],
.theme-dark {
  --theme-bg-primary: #0a0a18;
  --theme-bg-secondary: #121230;
  --theme-bg-tertiary: #1a1a3a;
  --theme-text-primary: #ffffff;
  --theme-text-secondary: #e0e0e0;
  --theme-text-tertiary: #a0a0a0;
  --theme-text-muted: #808080;
  --theme-border-primary: rgba(255, 255, 255, 0.1);
  --theme-border-secondary: rgba(255, 255, 255, 0.05);
  --theme-shadow-primary: rgba(0, 0, 0, 0.3);
  --theme-shadow-secondary: rgba(0, 0, 0, 0.15);
  --theme-navbar-bg: rgba(10, 10, 24, 0.95);
  --theme-card-bg: #121230;

  /* ENHANCED: Dark theme footer */
  --theme-footer-bg: #050510;
  --theme-footer-text: #ffffff;
  --theme-footer-text-muted: #a0a0a0;
  --theme-footer-border: rgba(255, 255, 255, 0.1);
}
[data-theme="high-contrast"],
.theme-high-contrast {
  --theme-bg-primary: #000000;
  --theme-bg-secondary: #1a1a1a;
  --theme-bg-tertiary: #333333;
  --theme-text-primary: #ffffff;
  --theme-text-secondary: #ffffff;
  --theme-text-tertiary: #cccccc;
  --theme-text-muted: #aaaaaa;
  --theme-accent-primary: #ffff00;
  --theme-accent-secondary: #00ffff;
  --theme-accent-success: #00ff00;
  --theme-accent-warning: #ffaa00;
  --theme-accent-error: #ff0000;
  --theme-accent-info: #0099ff;
  --theme-border-primary: #ffffff;
  --theme-border-secondary: #cccccc;
  --theme-shadow-primary: rgba(255, 255, 255, 0.3);
  --theme-shadow-secondary: rgba(255, 255, 255, 0.15);
  --theme-navbar-bg: rgba(0, 0, 0, 0.98);
  --theme-card-bg: #1a1a1a;

  /* ENHANCED: High contrast footer */
  --theme-footer-bg: #000000;
  --theme-footer-text: #ffffff;
  --theme-footer-text-muted: #cccccc;
  --theme-footer-border: #ffffff;
}
[data-theme="sepia"],
.theme-sepia {
  --theme-bg-primary: #f4f3e8;
  --theme-bg-secondary: #ebe8d6;
  --theme-bg-tertiary: #e0dcc4;
  --theme-text-primary: #3c3933;
  --theme-text-secondary: #4a453d;
  --theme-text-tertiary: #6b6456;
  --theme-text-muted: #8b7f6f;
  --theme-accent-primary: #d2691e;
  --theme-accent-secondary: #8b4513;
  --theme-accent-success: #228b22;
  --theme-accent-warning: #daa520;
  --theme-accent-error: #cd5c5c;
  --theme-accent-info: #4682b4;
  --theme-border-primary: rgba(60, 57, 51, 0.2);
  --theme-border-secondary: rgba(60, 57, 51, 0.1);
  --theme-shadow-primary: rgba(60, 57, 51, 0.2);
  --theme-shadow-secondary: rgba(60, 57, 51, 0.1);
  --theme-navbar-bg: rgba(244, 243, 232, 0.95);
  --theme-card-bg: #ebe8d6;

  /* ENHANCED: Sepia footer */
  --theme-footer-bg: #e0dcc4;
  --theme-footer-text: #3c3933;
  --theme-footer-text-muted: #6b6456;
  --theme-footer-border: rgba(60, 57, 51, 0.2);
}

/* ===== GLOBAL BASE ===== */

* {
  transition: var(--theme-transition);
}

body {
  background: var(--theme-bg-primary);
  color: var(--theme-text-primary);
  font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Remove preload class flicker prevention */
.preload * {
  transition: none !important;
  animation: none !important;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--theme-text-primary);
  font-weight: 700;
}

p,
span,
div {
  color: var(--theme-text-primary);
}

a {
  color: var(--theme-accent-primary);
  text-decoration: none;
}

a:hover {
  color: var(--theme-accent-secondary);
}

/* ===== NAVBAR ===== */

.custom-navbar {
  background-color: var(--theme-navbar-bg) !important;
  backdrop-filter: blur(15px);
  padding: 15px 0;
  box-shadow: 0 2px 20px var(--theme-shadow-secondary);
}

.navbar-brand {
  color: var(--theme-text-primary) !important;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: white;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Navigation Links */
.navbar-nav .nav-link {
  color: var(--theme-text-primary) !important;
  font-weight: 500;
  position: relative;
  padding: 8px 16px !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--theme-accent-primary) !important;
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  transition: width 0.3s ease;
  transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 80%;
}

/* remove the purple focus box on navbar links */
.navbar-nav .nav-link:focus,
.navbar-nav .nav-link:focus-visible {
  outline: none !important;
  box-shadow: none !important;
}

/* ===== THEME TOGGLE ===== */

.theme-toggle {
  background: rgba(139, 92, 246, 0.1);
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  cursor: pointer;
  display: flex !important;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  z-index: 1000;
}

.theme-toggle:hover {
  background: rgba(139, 92, 246, 0.2);
  transform: scale(1.1) rotate(10deg);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.theme-toggle:active {
  transform: scale(0.95) rotate(-5deg);
}

.theme-toggle:focus {
  outline: 2px solid var(--theme-accent-secondary);
  outline-offset: 2px;
}

/* ENHANCED: Theme icon animations */
.theme-icon {
  font-size: 1.2rem;
  color: var(--theme-text-primary);
  position: relative;
  z-index: 1;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  transition: all 0.4s ease;
}

/* Theme switching animation */
.theme-toggle.switching .theme-icon {
  transform: rotate(180deg) scale(0.8);
}

.theme-toggle.switching {
  background: linear-gradient(
    45deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  animation: themeSwitch 0.6s ease;
}

@keyframes themeSwitch {
  0% {
    transform: scale(1) rotate(0deg);
  }
  50% {
    transform: scale(1.2) rotate(180deg);
  }
  100% {
    transform: scale(1) rotate(360deg);
  }
}

/* Ripple effect for theme toggle */
.theme-toggle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.theme-toggle:active::before {
  width: 60px;
  height: 60px;
}

/* ===== MOBILE MENU ===== */

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  z-index: 1049;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-toggle {
  background: transparent;
  border: none;
  width: 44px;
  height: 44px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
  z-index: 1051;
  flex-shrink: 0;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--theme-text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--theme-bg-primary) 0%,
    var(--theme-bg-secondary) 100%
  );
  z-index: 1050;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  box-shadow: 4px 0 20px var(--theme-shadow-primary);
  display: flex;
  flex-direction: column;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid var(--theme-border-primary);
  min-height: 80px;
}

.mobile-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-logo .logo-icon {
  width: 35px;
  height: 35px;
  font-size: 1rem;
}

.mobile-logo .logo-text {
  font-size: 1.3rem;
}

.mobile-menu-close {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  color: var(--theme-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.mobile-menu-close:hover {
  background: rgba(255, 140, 66, 0.2);
  transform: rotate(90deg);
}

.mobile-nav {
  flex: 1;
  padding: 20px 0;
  overflow-y: auto;
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-item {
  margin: 0;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  padding: 15px 20px;
  color: var(--theme-text-primary) !important;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  position: relative;
}

.mobile-nav-link:hover {
  background: rgba(255, 140, 66, 0.1);
  padding-left: 30px;
  border-left: 3px solid var(--theme-accent-primary);
}

.mobile-nav-link i {
  width: 24px;
  margin-right: 15px;
  color: var(--theme-accent-primary);
  font-size: 1.2rem;
}

.mobile-menu-footer {
  padding: 20px;
  border-top: 1px solid var(--theme-border-primary);
  text-align: center;
}

.mobile-menu-text {
  font-weight: 600;
  margin: 0 0 5px 0;
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mobile-menu-subtext {
  font-size: 0.9rem;
  color: var(--theme-text-muted);
  margin: 0;
}

body.mobile-menu-open {
  overflow: hidden;
}

/* ===== LAYOUT-FIXED NAVBAR CONTROLS ===== */

/* LAYOUT-FIXED: Desktop navbar controls (theme toggle at far right) */
.desktop-controls {
  display: flex !important;
  align-items: center;
  gap: 0;
  margin-left: auto;
}

/* LAYOUT-FIXED: Mobile navbar controls (theme button first, then menu toggle) */
.mobile-navbar-controls {
  display: flex !important;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  order: 2; /* Ensures controls appear at the right */
}

/* ===== HERO SECTION ===== */

.hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--theme-bg-primary);
  padding-top: 100px;
  padding-bottom: 100px;
}

.hero-content h1 {
  background: linear-gradient(
    90deg,
    var(--theme-text-primary),
    var(--theme-accent-primary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ENHANCED: Typing Animation */
.typing-container {
  min-height: 2em;
  font-size: 1.2rem;
  color: var(--theme-text-secondary);
}

.typing-text {
  display: inline;
}

/* FIXED: Cursor animation */
.cursor {
  display: inline-block;
  background-color: var(--theme-accent-primary);
  width: 1px;
  height: 1.15em;
  margin-left: -1px;
  vertical-align: top;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

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

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

/* ===== SECTION TITLES ===== */

section {
  position: relative;
}

.section-title h2 {
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-title p {
  color: var(--theme-text-muted);
}

/* ===== ABOUT ===== */

.about {
  background-color: var(--theme-card-bg);
}

.about-mission {
  background: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 20px;
  border-left: 4px solid var(--theme-accent-primary);
}

.about-mission h3 {
  color: var(--theme-accent-primary);
}

.benefit-card {
  background: var(--theme-card-bg);
  border-radius: 15px;
  border: 1px solid var(--theme-border-primary);
}

.benefit-card:hover {
  transform: translateY(-5px);
  border-color: var(--theme-accent-secondary);
  box-shadow: 0 10px 30px var(--theme-shadow-primary);
}

.benefit-card i {
  color: var(--theme-accent-primary);
}

.stat-number {
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== COURSES & FILTER ===== */

.courses {
  background-color: var(--theme-bg-primary);
}

.course-card {
  background: var(--theme-card-bg) !important;
  border: 1px solid var(--theme-border-primary);
  color: var(--theme-text-primary) !important;
}

.course-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--theme-shadow-primary);
  border-color: var(--theme-accent-secondary);
}

.course-header {
  background: rgba(139, 92, 246, 0.1);
  border-bottom: 2px solid var(--theme-accent-secondary);
}

.course-card .card-title {
  color: var(--theme-text-primary) !important;
}

.course-card .card-text {
  color: var(--theme-text-secondary) !important;
}

.course-topics li {
  color: var(--theme-text-tertiary) !important;
}

/* Course level badges */
.course-level.beginner {
  background: rgba(76, 175, 80, 0.2);
  color: #4caf50 !important;
}

.course-level.intermediate {
  background: rgba(33, 150, 243, 0.2);
  color: #2196f3 !important;
}

.course-level.advanced {
  background: rgba(244, 67, 54, 0.2);
  color: #f44336 !important;
}

.course-level.specialization {
  background: rgba(255, 193, 7, 0.2);
  color: #ffc107 !important;
}

/* ===== TECHNOLOGIES SECTION ===== */

.technologies {
  background-color: var(--theme-card-bg);
}

.tech-item {
  background: var(--theme-card-bg);
  border-radius: 15px;
  border: 1px solid var(--theme-border-primary);
}

.tech-item:hover {
  transform: translateY(-5px);
  border-color: var(--theme-accent-secondary);
  background: rgba(139, 92, 246, 0.05);
}

.tech-item i {
  color: var(--theme-accent-primary);
}

.tech-item h4 {
  color: var(--theme-text-secondary);
}

/* ===== FEATURES SECTION ===== */

.features {
  background: var(--theme-bg-primary);
}

.feature-card {
  background: var(--theme-card-bg) !important;
  border: 1px solid var(--theme-border-primary);
  color: var(--theme-text-primary) !important;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--theme-shadow-primary);
  border-color: var(--theme-accent-secondary);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.feature-icon i {
  color: var(--theme-accent-primary);
}

.feature-card .card-title {
  color: var(--theme-text-primary) !important;
}

.feature-card .card-text {
  color: var(--theme-text-secondary) !important;
}

/* ===== PRICING SECTION ===== */

.pricing {
  background-color: var(--theme-card-bg);
}

.toggle-label {
  color: var(--theme-text-muted) !important;
  font-weight: 500;
}

.pricing-card {
  background: var(--theme-bg-primary) !important;
  border: 1px solid var(--theme-border-primary);
  position: relative;
  color: var(--theme-text-primary) !important;
}

.pricing-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--theme-shadow-primary);
  border-color: var(--theme-accent-secondary);
}

.pricing-card .card-title {
  color: var(--theme-text-primary) !important;
}

.popular-badge {
  position: absolute;
  top: -15px;
  right: 20px;
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  color: white !important;
  padding: 5px 15px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
}

.price {
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
}

.price span {
  color: var(--theme-text-muted) !important;
}

.pricing-features li {
  color: var(--theme-text-tertiary) !important;
  border-bottom: 1px solid var(--theme-border-secondary);
  padding: 10px 0;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.form-check-input:checked {
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  border-color: var(--theme-accent-primary);
}

.form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.25);
  border-color: var(--theme-accent-primary);
}

/* ===== INSTRUCTORS SECTION ===== */

.instructors {
  background-color: var(--theme-bg-primary);
}

.instructor-card {
  background: var(--theme-card-bg) !important;
  border: 1px solid var(--theme-border-primary);
  color: var(--theme-text-primary) !important;
}

.instructor-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--theme-shadow-primary);
  border-color: var(--theme-accent-secondary);
}

.instructor-img {
  height: 250px;
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  position: relative;
  overflow: hidden;
}

.instructor-img::after {
  content: "";
  position: absolute;
  bottom: -50px;
  left: -50px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.instructor-img::before {
  content: "";
  position: absolute;
  top: -30px;
  right: -30px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.instructor-card .card-title {
  color: var(--theme-text-primary) !important;
}

.instructor-company {
  color: var(--theme-accent-primary) !important;
  font-weight: 500;
}

.instructor-bio {
  color: var(--theme-text-muted) !important;
}

/* ===== COMMUNITY SECTION ===== */
.community {
  background-color: var(--theme-card-bg);
}

.community-card {
  background: var(--theme-card-bg) !important;
  border: 1px solid var(--theme-border-primary);
  border-radius: 20px;
  transition: all 0.3s ease;
}

.community-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--theme-shadow-primary);
  border-color: var(--theme-accent-secondary);
}

.community-icon i {
  color: var(--theme-accent-primary);
  transition: transform 0.3s ease;
}

.community-card:hover .community-icon i {
  transform: scale(1.1);
}

/* ===== CONTACT SECTION ===== */

.contact {
  background: var(--theme-bg-primary);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--theme-accent-primary);
}

.contact-text h4 {
  color: var(--theme-text-primary);
}

.contact-text p,
.contact-text a {
  color: var(--theme-text-muted);
  text-decoration: none;
}

.contact-text a:hover {
  color: var(--theme-accent-primary);
}

.contact-form {
  background: var(--theme-card-bg);
  padding: 40px;
  border-radius: 20px;
}

.form-label {
  color: var(--theme-text-primary);
  font-weight: 500;
}

.form-control {
  background-color: var(--theme-bg-secondary);
  border: 1px solid var(--theme-border-primary);
  border-radius: 10px;
  color: var(--theme-text-primary);
}

.form-control:focus {
  background-color: var(--theme-bg-secondary);
  border-color: var(--theme-accent-secondary);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.25);
  color: var(--theme-text-primary);
}

.form-control::placeholder {
  color: var(--theme-text-muted);
}

.invalid-feedback {
  color: var(--theme-accent-error);
}

/* ENHANCED: Social icons with better visibility */
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: white !important;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}

.social-icon:hover {
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
  color: white !important;
}

.social-icon i {
  font-size: 1.2rem;
}

/* ===== BUTTONS & CARDS ===== */

.btn {
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  ) !important;
  border: none !important;
  color: white !important;
  box-shadow: 0 4px 15px rgba(255, 140, 66, 0.3);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  ) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 140, 66, 0.4) !important;
  border: none !important;
  color: white !important;
}

.btn-secondary {
  background: transparent !important;
  border: 2px solid var(--theme-accent-secondary) !important;
  color: var(--theme-text-primary) !important;
  font-weight: 600;
  box-shadow: none;
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  ) !important;
  border-color: transparent !important;
  color: white !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

/* ENHANCED: Rounded filter buttons */
.filter-btn {
  background: var(--theme-card-bg) !important;
  border: 2px solid var(--theme-border-primary) !important;
  color: var(--theme-text-primary) !important;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: 25px !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px var(--theme-shadow-secondary);
}

.filter-btn:hover {
  background: rgba(139, 92, 246, 0.1) !important;
  border-color: var(--theme-accent-secondary) !important;
  color: var(--theme-accent-secondary) !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
}

.filter-btn.active {
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  ) !important;
  border-color: transparent !important;
  color: white !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

/* ===== CARDS ===== */

.card {
  background-color: var(--theme-card-bg);
  border: 1px solid var(--theme-border-primary);
  box-shadow: 0 2px 8px var(--theme-shadow-secondary);
  border-radius: 15px;
}

.card:hover {
  box-shadow: 0 8px 25px var(--theme-shadow-primary);
  transform: translateY(-2px);
}

.card-title {
  color: var(--theme-text-primary);
}

.card-text {
  color: var(--theme-text-secondary);
}

/* ===== ENHANCED FOOTER ===== */

footer {
  background-color: var(--theme-footer-bg) !important;
  color: var(--theme-footer-text) !important;
  border-top: 1px solid var(--theme-footer-border);
}

footer .logo-icon {
  background: linear-gradient(
    135deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
}

footer .logo-text {
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.footer-about p {
  color: var(--theme-footer-text-muted) !important;
}

.footer-links h4 {
  position: relative;
  color: var(--theme-footer-text) !important;
}

.footer-links h4::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--theme-accent-primary),
    var(--theme-accent-secondary)
  );
}

.footer-links a {
  color: var(--theme-footer-text-muted) !important;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--theme-accent-primary) !important;
  padding-left: 5px;
}

.copyright {
  border-top: 1px solid var(--theme-footer-border);
  color: var(--theme-footer-text-muted) !important;
}

.copyright a {
  color: var(--theme-accent-primary) !important;
  text-decoration: none;
}

/* ===== RESPONSIVE ===== */

/* Desktop */
@media (min-width: 992px) {
  .desktop-controls {
    display: flex !important;
  }

  .mobile-navbar-controls {
    display: none !important;
  }

  /* Theme toggle positioned at far right of desktop navbar */
  .theme-toggle {
    margin-left: 16px;
  }
}

/* Tablet & small desktop */
@media (max-width: 991.98px) {
  .navbar-collapse {
    display: none !important;
  }

  .desktop-controls {
    display: none !important;
  }

  .mobile-navbar-controls {
    display: flex !important;
    order: 2;
  }

  /* LAYOUT-FIXED: Mobile control order - theme button first, then menu toggle */
  .theme-toggle {
    order: 1;
    width: 40px;
    height: 40px;
    margin-right: 8px;
  }

  .mobile-menu-toggle {
    order: 2;
  }
}

/* Narrow tablets & large phones */
@media (max-width: 767.98px) {
  .hero {
    padding-top: 120px;
  }

  .display-3 {
    font-size: 2.5rem;
  }

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

  .hero-btns {
    flex-direction: column;
  }

  .hero-btns .btn {
    width: 100%;
  }

  /* ENHANCED: Mobile filter buttons */
  .courses-filter {
    flex-direction: column;
    align-items: center;
    gap: 10px !important;
  }

  .filter-btn {
    min-width: 150px;
  }
}

/* Small phones */
@media (max-width: 575.98px) {
  .display-3 {
    font-size: 2rem;
  }

  .display-4 {
    font-size: 1.8rem;
  }

  .filter-btn {
    width: 100%;
    max-width: 200px;
  }

  /* LAYOUT-FIXED: Extra small screens */
  .theme-toggle {
    width: 36px;
    height: 36px;
  }

  .theme-icon svg {
    width: 16px;
    height: 16px;
  }
}

/* LAYOUT-FIXED: Ensure proper container layout */
.navbar > .container {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
}

/* ===== ACCESSIBILITY & PRINT ===== */

*:focus {
  outline: 2px solid var(--theme-accent-secondary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .cursor {
    animation: none !important;
  }
}

@media (prefers-contrast: high) {
  :root {
    --theme-border-primary: currentColor;
    --theme-shadow-primary: transparent;
    --theme-shadow-secondary: transparent;
  }
}

/* ===== PRINT STYLES ===== */

@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
    transition: none !important;
    animation: none !important;
  }

  .theme-toggle,
  .mobile-menu-toggle,
  .mobile-menu,
  .mobile-menu-overlay {
    display: none;
  }
}

.course-item {
  transition: opacity 0.2s ease;
}

/* Make responsive images adapt their look per theme */
.img-fluid {
  transition: filter 0.3s ease;
}

.theme-light  .img-fluid {
  /* light-theme buttons use --theme-accent-primary */
  filter: drop-shadow(0 0 8px var(--theme-accent-primary));
}

.theme-dark   .img-fluid {
  /* dark-theme buttons use --theme-accent-secondary */
  filter: drop-shadow(0 0 8px var(--theme-accent-secondary));
}
.theme-high-contrast .img-fluid {
  filter: contrast(2) brightness(1.2);
}
.theme-sepia  .img-fluid {
  /* sepia buttons use --theme-accent-secondary */
  filter: drop-shadow(0 0 8px var(--theme-accent-secondary));
  filter: drop-shadow(0 0 8px var(--theme-accent-primary));
}

.theme-dark   .img-fluid {
  /* dark-theme buttons use --theme-accent-secondary */
  filter: drop-shadow(0 0 8px var(--theme-accent-secondary));
}
.theme-high-contrast .img-fluid {
  filter: contrast(2) brightness(1.2);
}
.theme-sepia  .img-fluid {
  /* sepia buttons use --theme-accent-secondary */
  filter: drop-shadow(0 0 8px var(--theme-accent-secondary));
}