/* General Body Styles */
body, html {
  overflow-x: hidden;
  background-color: #0E1116;
  color: #c9d1d9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  margin: 0;
  line-height: 1.6;
}

/* Header Styles */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  background-color: #161b22;
  border-bottom: 1px solid #30363d;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
}

header nav a {
  color: #c9d1d9;
  text-decoration: none;
  margin: 0 15px;
  transition: color 0.3s ease;
  font-weight: bold;
}

header nav a:hover {
  color: #58a6ff;
}

/* Main Content Styles */
main {
  padding: 0 5%;
}

/* Hero Section Styles */
.hero {
  text-align: center;
  padding: 80px 20px;
  background: radial-gradient(circle, rgba(22, 27, 34, 0.9) 0%, rgba(13, 17, 23, 0.9) 70%), url('https://source.unsplash.com/random/1600x900?technology,code') no-repeat center center/cover;
  position: relative;
  overflow: hidden;
}

/* Interactive Grid Overlay */
.hero-grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  grid-template-rows: repeat(15, 1fr);
  gap: 2px;
  padding: 2px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
  animation: gridMove 20s linear infinite;
  filter: drop-shadow(0 0 10px rgba(88, 166, 255, 0.3));
}

.hero-grid-cell {
  position: relative;
  background: transparent;
  border: 1px solid rgba(88, 166, 255, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  pointer-events: auto;
  overflow: hidden;
  animation: cellPulse 3s ease-in-out infinite;
  box-shadow: 0 0 8px rgba(88, 166, 255, 0.2), inset 0 0 8px rgba(88, 166, 255, 0.1);
}

/* Individual cell pulse animation with staggered delays */
@keyframes cellPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
    border-color: rgba(88, 166, 255, 0.15);
    box-shadow: 0 0 8px rgba(88, 166, 255, 0.2), inset 0 0 8px rgba(88, 166, 255, 0.1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.03);
    border-color: rgba(88, 166, 255, 0.3);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.4), inset 0 0 12px rgba(88, 166, 255, 0.2);
  }
}

.hero-grid-cell::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(88, 166, 255, 0.5) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  opacity: 0;
}

.hero-grid-cell::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(88, 166, 255, 0.05);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-grid-cell:hover::before {
  width: 300px;
  height: 300px;
  opacity: 0.8;
}

.hero-grid-cell:hover::after {
  opacity: 1;
}

.hero-grid-cell:hover {
  background: rgba(88, 166, 255, 0.2);
  border-color: rgba(88, 166, 255, 0.6);
  box-shadow: 
    0 0 30px rgba(88, 166, 255, 0.6),
    0 0 50px rgba(88, 166, 255, 0.3),
    inset 0 0 30px rgba(88, 166, 255, 0.2);
  transform: scale(1.05);
  z-index: 2;
}

/* Grid lines background */
.hero-grid-overlay {
  background-image: 
    linear-gradient(rgba(88, 166, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 166, 255, 0.1) 1px, transparent 1px);
  background-size: calc(100% / 20) calc(100% / 15);
  background-position: 0 0, 0 0;
}

/* Grid movement animation */
@keyframes gridMove {
  0% {
    transform: translate(0, 0) rotate(0deg);
    background-position: 0 0, 0 0;
  }
  25% {
    transform: translate(15px, -15px) rotate(0.5deg);
    background-position: 30px -30px, 30px -30px;
  }
  50% {
    transform: translate(0, -30px) rotate(0deg);
    background-position: 0 -60px, 0 -60px;
  }
  75% {
    transform: translate(-15px, -15px) rotate(-0.5deg);
    background-position: -30px -30px, -30px -30px;
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
    background-position: 0 0, 0 0;
  }
}

.hero-text {
  position: relative;
  z-index: 10;
}

.hero-text h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-text p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 2rem auto;
}

#exploreBtn, .exploreBtn {
  background-color: #58a6ff;
  color: #0d1117;
  border: none;
  padding: 15px 30px;
  border-radius: 6px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#exploreBtn:hover, .exploreBtn:hover {
  background-color: #80b6f9;
}

/* Hero Revolve Section Styles */
.hero-revolve {
  background: none;
  padding: 80px 0 60px 0;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-revolve-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}
.orbit-container {
  position: relative;
  width: 340px;
  height: 340px;
  min-width: 240px;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.center-icon {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, #6a8cff 60%, #5ee7df 100%);
  color: #fff;
  border-radius: 50%;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 4px 32px 0 rgba(90,120,255,0.18);
}
.orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.orbit1 {
  width: 260px;
  height: 260px;
  animation: orbit-rotate1 16s linear infinite;
}
.orbit2 {
  width: 180px;
  height: 180px;
  animation: orbit-rotate2 12s linear infinite reverse;
}
.orbit3 {
  width: 110px;
  height: 110px;
  animation: orbit-rotate3 8s linear infinite;
}
.orbit i {
  position: absolute;
  font-size: 1.5rem;
  color: #b3c7f9;
  background: rgba(22,27,34,0.85);
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 2px 8px 0 rgba(90,120,255,0.10);
}
.orbit1 i:nth-child(1) { left: 50%; top: 0; transform: translate(-50%, 0); }
.orbit1 i:nth-child(2) { right: 0; top: 50%; transform: translate(0, -50%); }
.orbit1 i:nth-child(3) { left: 50%; bottom: 0; transform: translate(-50%, 0); }
.orbit1 i:nth-child(4) { left: 0; top: 50%; transform: translate(0, -50%); }
.orbit2 i:nth-child(1) { left: 50%; top: 0; transform: translate(-50%, 0); }
.orbit2 i:nth-child(2) { right: 0; top: 50%; transform: translate(0, -50%); }
.orbit2 i:nth-child(3) { left: 50%; bottom: 0; transform: translate(-50%, 0); }
.orbit2 i:nth-child(4) { left: 0; top: 50%; transform: translate(0, -50%); }
.orbit3 i:nth-child(1) { left: 50%; top: 0; transform: translate(-50%, 0); }
.orbit3 i:nth-child(2) { right: 0; top: 50%; transform: translate(0, -50%); }
.orbit3 i:nth-child(3) { left: 50%; bottom: 0; transform: translate(-50%, 0); }
.orbit3 i:nth-child(4) { left: 0; top: 50%; transform: translate(0, -50%); }
@keyframes orbit-rotate1 {
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes orbit-rotate2 {
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes orbit-rotate3 {
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}
.hero-revolve-text {
  min-width: 320px;
  max-width: 420px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
}
.hero-revolve-text h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin: 0 0 10px 0;
  line-height: 1.15;
  letter-spacing: -1px;
}
.hero-revolve-text p {
  color: #b3c7f9;
  font-size: 1.15rem;
  margin-bottom: 18px;
}
.explore-btn-revolve {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(90deg, #6a8cff 60%, #5ee7df 100%);
  color: #fff;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  border-radius: 32px;
  padding: 14px 32px;
  box-shadow: 0 4px 24px rgba(90,120,255,0.13);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
}
.explore-btn-revolve:hover {
  background: linear-gradient(90deg, #5ee7df 60%, #6a8cff 100%);
  box-shadow: 0 8px 32px rgba(90,120,255,0.18);
  transform: translateY(-2px) scale(1.04);
}
@media (max-width: 900px) {
  .hero-revolve-content {
    flex-direction: column;
    gap: 32px;
  }
  .orbit-container {
    width: 220px;
    height: 220px;
    min-width: 140px;
    min-height: 140px;
  }
  .center-icon {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }
}

/* Hero Future Section Styles */
.hero-future {
  position: relative;
  min-height: 540px;
  padding: 80px 0 60px 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.starfield {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: transparent;
}
/* Simple CSS starfield */
.starfield::before, .starfield::after {
  content: '';
  position: absolute;
  width: 100%; height: 100%;
  left: 0; top: 0;
  background-image:
    radial-gradient(white 1px, transparent 1.5px),
    radial-gradient(white 1px, transparent 1.5px),
    radial-gradient(white 1px, transparent 1.5px);
  background-size: 120px 120px, 200px 200px, 320px 320px;
  background-position: 0 0, 60px 100px, 160px 40px;
  opacity: 0.13;
  animation: starfield-move 60s linear infinite;
}
.starfield::after {
  opacity: 0.18;
  filter: blur(1.5px);
  animation-duration: 90s;
}
@keyframes starfield-move {
  100% { background-position: 120px 120px, 260px 300px, 360px 240px; }
}
.hero-future-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}
.orbits-system {
  position: relative;
  width: 370px;
  height: 370px;
  min-width: 220px;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.center-rocket-glass {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: rgba(30,40,80,0.25);
  border-radius: 50%;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  box-shadow: 0 0 32px 8px #6a8cff44, 0 0 0 8px rgba(255,255,255,0.08) inset;
  backdrop-filter: blur(8px);
  border: 2.5px solid rgba(106,140,255,0.22);
  color: #6a8cff;
  z-index: 2;
}
.orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  border-radius: 50%;
}
.orbit1 {
  width: 250px; height: 250px;
  box-shadow: 0 0 24px 2px #6a8cff66;
  border: 2px dotted #6a8cff99;
  animation: orbit-rotate1 6s linear infinite;
}
.orbit2 {
  width: 190px; height: 190px;
  box-shadow: 0 0 18px 2px #5ee7df66;
  border: 2px dotted #5ee7df99;
  animation: orbit-rotate2 9s linear infinite reverse;
}
.orbit3 {
  width: 135px; height: 135px;
  box-shadow: 0 0 18px 2px #ffd96666;
  border: 2px dotted #ffd966cc;
  animation: orbit-rotate3 12s linear infinite;
}
.orbit4 {
  width: 80px; height: 80px;
  box-shadow: 0 0 18px 2px #b366ff66;
  border: 2px dotted #b366ffcc;
  animation: orbit-rotate4 15s linear infinite reverse;
}
.orbit-icon {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  background: rgba(20,24,40,0.7);
  border-radius: 50%;
  box-shadow: 0 0 12px 2px #fff2, 0 0 0 2px rgba(255,255,255,0.08) inset;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  filter: drop-shadow(0 0 6px #fff3);
  transition: box-shadow 0.3s, color 0.3s;
}
.orbit1 .orbit-icon { box-shadow: 0 0 12px 2px #6a8cff99; color: #6a8cff; }
.orbit2 .orbit-icon { box-shadow: 0 0 12px 2px #5ee7df99; color: #5ee7df; }
.orbit3 .orbit-icon { box-shadow: 0 0 12px 2px #ffd966cc; color: #ffd966; }
.orbit4 .orbit-icon { box-shadow: 0 0 12px 2px #b366ffcc; color: #b366ff; }
/* 3 icons per orbit, equally spaced, always upright */
.orbit1 .orbit-icon { --n: 3; }
.orbit2 .orbit-icon { --n: 3; }
.orbit3 .orbit-icon { --n: 3; }
.orbit4 .orbit-icon { --n: 3; }
.orbit1 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-125px) rotate(calc(-120deg * var(--icon-index))); }
.orbit2 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-95px) rotate(calc(-120deg * var(--icon-index))); }
.orbit3 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-65px) rotate(calc(-120deg * var(--icon-index))); }
.orbit4 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-40px) rotate(calc(-120deg * var(--icon-index))); }
.hero-future-text {
  min-width: 320px;
  max-width: 420px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  z-index: 2;
}
.gradient-text {
  background: linear-gradient(90deg, #6a8cff 40%, #5ee7df 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.7rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
}
.hero-future-text p {
  color: #b3c7f9;
  font-size: 1.15rem;
  margin-bottom: 18px;
}
.cta-future {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(90deg, #6a8cff 60%, #5ee7df 100%);
  color: #fff;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  border-radius: 32px;
  padding: 16px 38px;
  box-shadow: 0 4px 24px #6a8cff33, 0 0 0 2px #fff2 inset;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
  filter: drop-shadow(0 0 8px #6a8cff66);
}
.cta-future:hover {
  background: linear-gradient(90deg, #5ee7df 60%, #6a8cff 100%);
  box-shadow: 0 8px 32px #5ee7df44, 0 0 0 2px #fff4 inset;
  transform: translateY(-2px) scale(1.06);
  filter: drop-shadow(0 0 16px #5ee7df99);
}
@media (max-width: 900px) {
  .hero-future-content {
    flex-direction: column;
    gap: 32px;
  }
  .orbits-system {
    width: 220px;
    height: 220px;
    min-width: 120px;
    min-height: 120px;
  }
  .center-rocket-glass {
    width: 48px;
    height: 48px;
    font-size: 1.2rem;
  }
  .orbit1 { width: 140px; height: 140px; }
  .orbit2 { width: 100px; height: 100px; }
  .orbit3 { width: 70px; height: 70px; }
  .orbit4 { width: 40px; height: 40px; }
  .orbit1 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-65px) rotate(calc(-120deg * var(--icon-index))); }
  .orbit2 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-45px) rotate(calc(-120deg * var(--icon-index))); }
  .orbit3 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-25px) rotate(calc(-120deg * var(--icon-index))); }
  .orbit4 .orbit-icon { transform: rotate(calc(120deg * var(--icon-index))) translateY(-12px) rotate(calc(-120deg * var(--icon-index))); }
  .gradient-text { font-size: 1.5rem; }
}

/* Section General Styles */
section {
  padding: 60px 0;
  border-bottom: 1px solid #30363d;
}

h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

section > p {
  text-align: center;
  font-size: 1.1rem;
  color: #8b949e;
  margin-bottom: 40px;
}

/* Trusted Section */
.trusted-content {
  background: linear-gradient(145deg, #1a222e, #10141b);
  border-radius: 12px;
  padding: 50px;
  text-align: center;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.trusted-content h2 {
  margin-bottom: 0.5rem;
}

.trusted-content > p {
  margin-bottom: 3rem;
  color: #8b949e;
}

.features-container {
  display: flex;
  justify-content: space-around;
  gap: 20px;
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.icon-wrapper {
  background-color: #21262d;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  color: #58a6ff;
  border: 2px solid #30363d;
}

.feature-card span {
  font-weight: bold;
}

/* Demo Lectures Section */
.video-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.video-card {
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.video-thumbnail {
  position: relative;
}

.video-thumbnail img {
  width: 100%;
  display: block;
}

.play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3rem;
  color: white;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-card:hover .play-overlay {
  opacity: 1;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9rem;
}

.video-card h3 {
  padding: 15px 15px 5px;
  margin: 0;
  font-size: 1.2rem;
}

.video-card p {
  padding: 0 15px 15px;
  margin: 0;
  color: #8b949e;
}

/* Testimonials Section */

.testimonial-slider {
  display: flex;
  gap: 30px;
  overflow: visible;
  width: 100%;
  animation: testimonial-scroll 60s linear infinite;
  box-sizing: border-box;
  padding-left: 30px;
  padding-right: 30px;
}

.testimonial-slider:hover {
  animation-play-state: paused;
}

@keyframes testimonial-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.testimonial-card {
  background: rgba(22, 27, 34, 0.35);
  border-radius: 18px;
  padding: 20px;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 8px 32px 0 rgba(0,0,0,0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  min-width: 260px;
  max-width: 300px;
  min-height: 280px;
  height: 100%;
}

.author-info {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.author-info img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 15px;
  border: 2px solid #58a6ff;
}

.author-info strong {
  font-size: 1.1rem;
}

.stars {
  color: #ffac33;
}

.testimonial-card blockquote {
  margin: 0;
  font-style: italic;
  color: #c9d1d9;
  margin-top: 14px;
  flex: 1 1 auto;
  display: flex;
  align-items: flex-start;
}

/* Payments Proof Section */
.payments-proof-container {
  background: linear-gradient(145deg, #1a222e, #10141b);
  padding: 50px 0;
  overflow: hidden;
  position: relative;
}

.payments-proof-container h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
}

/* Payment Proof Slider Animation and Compact Card Styles */
.payment-proof-slider {
  display: flex;
  gap: 24px;
  width: max-content;
  min-width: 100%;
  animation: payment-proof-scroll 40s linear infinite;
  box-sizing: border-box;
  padding-left: 30px;
  padding-right: 30px;
}
.payment-proof-slider:hover {
  animation-play-state: paused;
}
@keyframes payment-proof-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.payment-proof-card {
  background: linear-gradient(135deg, #f8fbff 60%, #eaf6ff 100%);
  color: #222;
  border-radius: 18px;
  box-shadow: 0 4px 16px 0 rgba(0, 0, 0, 0.10);
  padding: 18px 16px 14px 16px;
  width: 240px;
  min-width: 240px;
  max-width: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  border: 1px solid #e3eaf3;
}

.checkmark-circle {
  background: #e6f9ed;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.checkmark-circle i {
  color: #22c55e;
  font-size: 1.3rem;
}

.payment-proof-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin: 0 0 4px 0;
  color: #222;
}

.payment-proof-card .thank-you {
  color: #6b7280;
  font-size: 0.98rem;
  margin-bottom: 10px;
}

.proof-details {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 1px 4px 0 rgba(0,0,0,0.04);
  padding: 10px 10px;
  width: 100%;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.98rem;
}

.proof-details div {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.proof-details span {
  color: #6b7280;
  font-size: 0.93rem;
}

.proof-details strong {
  color: #222;
  font-size: 1.01rem;
  font-weight: 700;
}

.payment-proof-card i.fab {
  font-size: 1rem;
  margin-right: 3px;
  color: #3b82f6;
}

.powered-by-razorpay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.93rem;
  color: #6b7280;
  margin-top: 18px;
  padding-top: 10px;
  border-top: 1px solid #e3eaf3;
  width: 100%;
}
.powered-by-razorpay img {
  height: 22px;
  width: auto;
  margin-right: 4px;
  vertical-align: middle;
  display: inline-block;
}
.powered-by-razorpay span {
  color: #0d6efd;
  font-weight: 600;
  margin-left: 2px;
}

@media (max-width: 900px) {
  .payment-proof-slider {
    gap: 12px;
    padding-left: 10px;
    padding-right: 10px;
  }
  .payment-proof-card {
    padding: 10px 4px 8px 4px;
    min-width: 170px;
    max-width: 170px;
    width: 170px;
  }
  .checkmark-circle {
    width: 28px;
    height: 28px;
  }
  .checkmark-circle i {
    font-size: 1rem;
  }
}

/* Remove old grid styles for payment proof */
.payments-proof-grid { display: none !important; }

/* Courses Page Section */
.courses-page {
  padding: 60px 0;
}

.courses-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.course-card {
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.course-card h3 {
  font-size: 1.5rem;
  margin-top: 0;
  color: #58a6ff;
}

.course-card p {
  color: #8b949e;
  flex-grow: 1;
}

.course-card ul {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.course-card li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.course-card .fa-check {
  color: #2ea043;
  margin-right: 10px;
}

.price-tag {
  background-color: #238636;
  color: #fff;
  padding: 16px 0;
  border-radius: 8px;
  text-align: center;
  font-weight: bold;
  margin-top: auto;
  font-size: 1.15rem;
  cursor: pointer;
  transition: background 0.3s;
  text-decoration: none;
}

.price-tag:hover {
  background-color: #a259ff;
  color: #fff;
}

.purchase-section {
    text-align: center;
}

.purchase-section .price {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.purchase-section .price span {
  color: #58a6ff;
}

.buy-now {
  background-color: #238636;
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 6px;
  font-size: 1.1rem;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.buy-now:hover {
  background-color: #2ea043;
}

/* Footer Styles */
footer {
  text-align: center;
  padding: 2rem 0;
  background-color: #0d1117;
  border-top: 1px solid #30363d;
} 

.back-btn-glass {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  background: none;
  border: none;
  box-shadow: none;
  z-index: 1000;
  transition: transform 0.2s, color 0.3s;
  text-decoration: none;
}
.back-btn-glass i {
  color: #fff;
  font-size: 1.3rem;
  transition: color 0.3s, transform 0.2s;
}
.back-btn-glass:hover i {
  color: #80b6f9;
  transform: scale(1.18);
}
@media (max-width: 600px) {
  .back-btn-glass {
    top: 18px;
    left: 10px;
    width: 28px;
    height: 28px;
    font-size: 1rem;
  }
  .back-btn-glass i {
    font-size: 1rem;
  }
} 

.icon-starfield {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.icon-columns-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 5;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
}
.icon-column {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  gap: 48px;
  pointer-events: none;
}
.icon-column.left {
  position: absolute;
  left: 2.5vw;
  top: -4vh;
  height: 100%;
}
.icon-column.right {
  position: absolute;
  right: 2.5vw;
  top: -4vh;
  height: 100%;
}
.star-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.45;
  background: rgba(30,40,80,0.35);
  box-shadow: 0 2px 12px 0 #0004;
  font-size: 2rem;
  color: #fff;
  pointer-events: none;
  animation: icon-float 3.5s ease-in-out infinite alternate;
}
.star-icon i { opacity: 0.85; }
@keyframes icon-float {
  0% { transform: translateY(0); }
  100% { transform: translateY(32px); }
}
@media (max-width: 900px) {
  .icon-columns-bg { display: none; }
}

/* Demo Lecture Layout Styles */
.demo-lecture-container {
  display: flex;
  gap: 30px;
  margin-top: 30px;
  min-height: 600px;
}

.lecture-sidebar {
  width: 280px;
  background: #161b22;
  border-radius: 12px;
  padding: 20px;
  border: 1px solid #30363d;
  height: fit-content;
}

.lecture-sidebar h3 {
  margin: 0 0 20px 0;
  font-size: 1.2rem;
  color: #c9d1d9;
  border-bottom: 1px solid #30363d;
  padding-bottom: 10px;
}

.lecture-category {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  margin-bottom: 8px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #8b949e;
}

.lecture-category:hover {
  background: #21262d;
  color: #c9d1d9;
}

.lecture-category.active {
  background: #58a6ff;
  color: #0d1117;
  font-weight: 600;
}

.lecture-category i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.lecture-content {
  flex: 1;
  background: #161b22;
  border-radius: 12px;
  padding: 30px;
  border: 1px solid #30363d;
}

.lecture-header {
  margin-bottom: 25px;
}

.lecture-title {
  font-size: 1.8rem;
  margin: 0 0 8px 0;
  color: #c9d1d9;
}

.lecture-subtitle {
  color: #8b949e;
  font-size: 0.95rem;
  margin: 0;
}

.video-player {
  width: 100%;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
  position: relative;
}

.video-player video {
  width: 100%;
  height: auto;
  display: block;
}

.video-placeholder {
  width: 100%;
  height: 400px;
  background: #000;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8b949e;
  font-size: 1.1rem;
}

.lecture-description {
  color: #c9d1d9;
  line-height: 1.6;
  margin-top: 20px;
}

@media (max-width: 768px) {
  .demo-lecture-container {
    flex-direction: column;
  }
  
  .lecture-sidebar {
    width: 100%;
  }
  
  .lecture-content {
    padding: 20px;
  }
  
  .lecture-title {
    font-size: 1.5rem;
  }
}

/* Animated Enroll Button Styles */
.enroll-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
  color: #fff;
  padding: 16px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
  border: none;
  cursor: pointer;
}

.enroll-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.enroll-btn:hover::before {
  left: 100%;
}

/* Enhanced shimmer effect */
.enroll-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.8s ease;
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}

.enroll-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(139, 92, 246, 0.4);
  background: linear-gradient(135deg, #7C3AED 0%, #8B5CF6 100%);
}

.enroll-btn:active {
  transform: translateY(2px) scale(0.98);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
  transition: all 0.1s ease;
}

/* Click/Tap animation */
.enroll-btn.clicked {
  animation: clickEffect 0.3s ease;
}

@keyframes clickEffect {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.95);
  }
  100% {
    transform: scale(1);
  }
}

/* Ripple effect for click */
.enroll-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.enroll-btn:active::after {
  width: 300px;
  height: 300px;
}

.enroll-btn i {
  font-size: 1.3rem;
  animation: bounce 2s infinite;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0) scale(1);
  }
  40% {
    transform: translateY(-6px) scale(1.1);
  }
  60% {
    transform: translateY(-3px) scale(1.05);
  }
}

/* Pulse animation for the entire button */
.enroll-btn {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
  }
  50% {
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.6);
  }
  100% {
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
  }
}

/* Hover effect stops pulse animation */
.enroll-btn:hover {
  animation: none;
}

/* Responsive design for enroll button */
@media (max-width: 768px) {
  .enroll-btn {
    padding: 14px 28px;
    font-size: 1rem;
  }
  
  .enroll-btn i {
    font-size: 1.2rem;
  }
}

/* Animated Price Tag Styles */
.price-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
  color: #fff;
  padding: 12px 24px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
  border: none;
  cursor: pointer;
}

.price-tag::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.price-tag:hover::before {
  left: 100%;
}

.price-tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(76, 175, 80, 0.4);
  background: linear-gradient(135deg, #45a049 0%, #4CAF50 100%);
}

.price-tag:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 0 2px 10px rgba(76, 175, 80, 0.2);
  transition: all 0.1s ease;
}

/* Click animation for price tags */
.price-tag.clicked {
  animation: priceClickEffect 0.3s ease;
}

@keyframes priceClickEffect {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.95);
  }
  100% {
    transform: scale(1);
  }
}

/* Ripple effect for price tags */
.price-tag::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.price-tag:active::after {
  width: 200px;
  height: 200px;
}

/* Pulse animation for price tags */
.price-tag {
  animation: pricePulse 2s infinite;
}

@keyframes pricePulse {
  0% {
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
  }
  50% {
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.6);
  }
  100% {
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
  }
}

.price-tag:hover {
  animation: none;
}

/* Animated Back Button */
.back-btn-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.back-btn-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.back-btn-glass:hover::before {
  left: 100%;
}

.back-btn-glass:hover {
  transform: translateX(-3px);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.back-btn-glass:active {
  transform: translateX(-1px) scale(0.95);
  transition: all 0.1s ease;
}

.back-btn-glass.clicked {
  animation: backClickEffect 0.3s ease;
}

@keyframes backClickEffect {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}

/* Animated Explore Button */
#exploreBtn, .exploreBtn {
  background: linear-gradient(135deg, #58a6ff 0%, #1f6feb 100%);
  color: #0d1117;
  border: none;
  padding: 15px 30px;
  border-radius: 6px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(88, 166, 255, 0.3);
}

/* Removed shimmer effect from explore button */

#exploreBtn:hover, .exploreBtn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(88, 166, 255, 0.4);
  background: linear-gradient(135deg, #1f6feb 0%, #58a6ff 100%);
}

#exploreBtn:active, .exploreBtn:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 0 2px 10px rgba(88, 166, 255, 0.2);
  transition: all 0.1s ease;
}

#exploreBtn.clicked, .exploreBtn.clicked {
  animation: exploreClickEffect 0.3s ease;
}

@keyframes exploreClickEffect {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.95);
  }
  100% {
    transform: scale(1);
  }
}

/* Feedback Section Styles */
.feedback-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #161b22 0%, #0d1117 100%);
  border-top: 1px solid #30363d;
}

.feedback-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.feedback-container h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #58a6ff 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feedback-container > p {
  text-align: center;
  font-size: 1.1rem;
  color: #8b949e;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.feedback-form {
  background: rgba(22, 27, 34, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid #30363d;
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #c9d1d9;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #30363d;
  border-radius: 8px;
  background: rgba(13, 17, 23, 0.8);
  color: #c9d1d9;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #58a6ff;
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
  background: rgba(13, 17, 23, 0.9);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #6e7681;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  font-family: inherit;
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #58a6ff 0%, #7c3aed 100%);
  color: #fff;
  padding: 16px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(88, 166, 255, 0.3);
  border: none;
  cursor: pointer;
  width: 100%;
  justify-content: center;
}

.submit-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.submit-btn:hover::before {
  left: 100%;
}

.submit-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.8s ease;
  animation: shimmer 3s infinite;
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(88, 166, 255, 0.4);
  background: linear-gradient(135deg, #7c3aed 0%, #58a6ff 100%);
}

.submit-btn:active {
  transform: translateY(2px) scale(0.98);
  box-shadow: 0 4px 15px rgba(88, 166, 255, 0.2);
  transition: all 0.1s ease;
}

.submit-btn.clicked {
  animation: clickEffect 0.3s ease;
}

.submit-btn i {
  font-size: 1.3rem;
  animation: bounce 2s infinite;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Responsive Design for All Pages */
@media (max-width: 768px) {
  .feedback-container h2 {
    font-size: 2rem;
  }
  
  .feedback-form {
    padding: 2rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .submit-btn {
    padding: 14px 28px;
    font-size: 1rem;
  }
  
  .submit-btn i {
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .feedback-container {
    padding: 0 15px;
  }
  
  .feedback-form {
    padding: 1.5rem;
  }
  
  .feedback-container h2 {
    font-size: 1.8rem;
  }
}

/* Comprehensive Mobile Responsive Design */
@media (max-width: 768px) {
  /* Header Mobile Styles */
  header {
    padding: 0.8rem 3%;
    flex-direction: column;
    gap: 1rem;
  }
  
  header nav {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  header nav a {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    background: rgba(88, 166, 255, 0.1);
    border-radius: 6px;
    border: 1px solid rgba(88, 166, 255, 0.2);
  }
  
  /* Hero Section Mobile */
  .hero {
    padding: 60px 15px;
    text-align: center;
  }
  
  .hero-grid-overlay {
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(10, 1fr);
    opacity: 0.2;
  }
  
  .hero-grid-cell:hover {
    transform: scale(1.02);
  }
  
  .hero-text h1 {
    font-size: 2.2rem;
    line-height: 1.2;
  }
  
  .hero-text p {
    font-size: 1rem;
    margin: 1rem auto 1.5rem auto;
  }
  
  #exploreBtn {
    padding: 12px 24px;
    font-size: 1rem;
    width: 100%;
    max-width: 280px;
  }
  
  /* Testimonials Mobile */
  .testimonials {
    padding: 40px 15px;
  }
  
  .testimonials h2 {
    font-size: 1.8rem;
  }
  
  .testimonials > p {
    font-size: 1rem;
  }
  
  .testimonial-card {
    min-width: 280px;
    margin: 0 10px;
    padding: 1.5rem;
  }
  
  .testimonial-card blockquote {
    font-size: 0.95rem;
    line-height: 1.5;
  }
  
  .author-info img {
    width: 40px;
    height: 40px;
  }
  
  .author-info strong {
    font-size: 0.9rem;
  }
  
  /* Payment Proof Mobile */
  .payments-proof-container {
    padding: 40px 15px;
  }
  
  .payments-proof-container h2 {
    font-size: 1.8rem;
  }
  
  .payment-proof-card {
    min-width: 280px;
    margin: 0 10px;
    padding: 1.5rem;
  }
  
  .checkmark-circle {
    width: 50px;
    height: 50px;
  }
  
  .checkmark-circle i {
    font-size: 1.2rem;
  }
  
  .payment-proof-card h3 {
    font-size: 1.1rem;
  }
  
  .proof-details div {
    font-size: 0.9rem;
  }
  
  /* Trusted Section Mobile */
  .trusted {
    padding: 40px 15px;
  }
  
  .trusted-content h2 {
    font-size: 1.8rem;
  }
  
  .features-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .feature-card {
    padding: 1.5rem;
  }
  
  .icon-wrapper {
    width: 50px;
    height: 50px;
  }
  
  .icon-wrapper i {
    font-size: 1.3rem;
  }
  
  .feature-card span {
    font-size: 0.95rem;
  }
  
  /* Main Content Mobile */
  main {
    padding: 0 3%;
  }
  
  /* Icon Columns Mobile */
  .icon-columns-bg {
    display: none;
  }
  
  /* Courses Page Mobile */
  .courses-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 0 15px;
  }
  
  .course-card {
    padding: 1.5rem;
  }
  
  .course-card h3 {
    font-size: 1.3rem;
  }
  
  .course-card p {
    font-size: 0.95rem;
  }
  
  .course-card ul {
    font-size: 0.9rem;
  }
  
  .price-tag {
    font-size: 1rem;
    padding: 12px 20px;
  }
  
  /* Demo Pages Mobile */
  .demo-lecture-container {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .lecture-sidebar {
    width: 100%;
    max-height: 300px;
    overflow-y: auto;
  }
  
  .lecture-content {
    width: 100%;
  }
  
  .video-player {
    height: 250px;
  }
  
  .lecture-title {
    font-size: 1.4rem;
  }
  
  .lecture-subtitle {
    font-size: 0.9rem;
  }
  
  .course-highlights {
    padding: 1.5rem;
  }
  
  .course-highlights h3 {
    font-size: 1.3rem;
  }
  
  .enroll-section {
    padding: 1.5rem;
  }
  
  .enroll-btn {
    padding: 14px 28px;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  /* Extra Small Mobile Styles */
  header {
    padding: 0.6rem 2%;
  }
  
  .logo {
    font-size: 1.3rem;
  }
  
  header nav a {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }
  
  /* Hero Extra Small */
  .hero {
    padding: 50px 10px;
  }
  
  .hero-text h1 {
    font-size: 1.8rem;
  }
  
  .hero-text p {
    font-size: 0.95rem;
  }
  
  #exploreBtn {
    padding: 10px 20px;
    font-size: 0.95rem;
  }
  
  /* Testimonials Extra Small */
  .testimonials {
    padding: 30px 10px;
  }
  
  .testimonials h2 {
    font-size: 1.6rem;
  }
  
  .testimonial-card {
    min-width: 250px;
    padding: 1.2rem;
  }
  
  .testimonial-card blockquote {
    font-size: 0.9rem;
  }
  
  /* Payment Proof Extra Small */
  .payments-proof-container {
    padding: 30px 10px;
  }
  
  .payments-proof-container h2 {
    font-size: 1.6rem;
  }
  
  .payment-proof-card {
    min-width: 250px;
    padding: 1.2rem;
  }
  
  .checkmark-circle {
    width: 45px;
    height: 45px;
  }
  
  .checkmark-circle i {
    font-size: 1.1rem;
  }
  
  /* Trusted Section Extra Small */
  .trusted {
    padding: 30px 10px;
  }
  
  .trusted-content h2 {
    font-size: 1.6rem;
  }
  
  .feature-card {
    padding: 1.2rem;
  }
  
  .icon-wrapper {
    width: 45px;
    height: 45px;
  }
  
  .icon-wrapper i {
    font-size: 1.2rem;
  }
  
  .feature-card span {
    font-size: 0.9rem;
  }
  
  /* Main Content Extra Small */
  main {
    padding: 0 2%;
  }
  
  /* Feedback Form Extra Small */
  .feedback-container {
    padding: 0 10px;
  }
  
  .feedback-form {
    padding: 1.2rem;
  }
  
  .feedback-container h2 {
    font-size: 1.6rem;
  }
  
  .submit-btn {
    padding: 12px 20px;
    font-size: 0.95rem;
  }
  
  .submit-btn i {
    font-size: 1.1rem;
  }
  
  /* Courses Page Extra Small */
  .courses-container {
    padding: 0 10px;
  }
  
  .course-card {
    padding: 1.2rem;
  }
  
  .course-card h3 {
    font-size: 1.2rem;
  }
  
  .course-card p {
    font-size: 0.9rem;
  }
  
  .course-card ul {
    font-size: 0.85rem;
  }
  
  .price-tag {
    font-size: 0.95rem;
    padding: 10px 16px;
  }
  
  /* Demo Pages Extra Small */
  .demo-lecture-container {
    gap: 1rem;
  }
  
  .lecture-sidebar {
    max-height: 250px;
  }
  
  .video-player {
    height: 200px;
  }
  
  .lecture-title {
    font-size: 1.2rem;
  }
  
  .lecture-subtitle {
    font-size: 0.85rem;
  }
  
  .course-highlights {
    padding: 1.2rem;
  }
  
  .course-highlights h3 {
    font-size: 1.2rem;
  }
  
  .enroll-section {
    padding: 1.2rem;
  }
  
  .enroll-btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }
}

/* Landscape Mobile Optimization */
@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    padding: 40px 15px;
  }
  
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .testimonials,
  .payments-proof-container,
  .trusted {
    padding: 30px 15px;
  }
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets for mobile */
  header nav a {
    padding: 0.8rem 1.2rem;
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  
  #exploreBtn {
    min-height: 44px;
    padding: 12px 24px;
  }
  
  .submit-btn {
    min-height: 44px;
    padding: 12px 24px;
  }
  
  .testimonial-card,
  .payment-proof-card,
  .feature-card {
    cursor: pointer;
  }
  
  /* Disable hover effects on touch devices */
  .testimonial-card:hover,
  .payment-proof-card:hover,
  .feature-card:hover {
    transform: none;
  }
}

/* High DPI Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .testimonial-card,
  .payment-proof-card,
  .feature-card {
    border-width: 0.5px;
  }
  
  .form-group input,
  .form-group textarea {
    border-width: 1px;
  }
}