* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #00f0ff;
  --secondary-color: #0066ff;
  --bg-dark: #0a0a0f;
  --bg-card: #151520;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --border-color: #2a2a3a;
}

html {
  scroll-behavior: smooth;
}

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

/* Mobile-optimized loading screen with stable layout */
.loader-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
  padding: 20px;
}

.loader-container.hidden {
  opacity: 0;
  visibility: hidden;
}

.code-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: clamp(50px, 15vw, 80px);
  font-weight: bold;
  margin-bottom: 30px;
}

.bracket,
.slash {
  animation: glow 2s ease-in-out infinite;
}

.bracket.left {
  color: var(--primary-color);
  animation-delay: 0s;
}

.slash {
  color: var(--secondary-color);
  animation-delay: 0.3s;
}

.bracket.right {
  color: var(--primary-color);
  animation-delay: 0.6s;
}

@keyframes glow {
  0%,
  100% {
    text-shadow: 0 0 20px currentColor, 0 0 40px currentColor, 0 0 60px currentColor;
    opacity: 1;
  }
  50% {
    text-shadow: 0 0 30px currentColor, 0 0 60px currentColor, 0 0 90px currentColor;
    opacity: 0.8;
  }
}

.animated-name {
  font-size: clamp(24px, 6vw, 36px);
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

.animated-name .letter {
  display: inline-block;
  animation: letterGlow 2s ease-in-out infinite, float 3s ease-in-out infinite;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.animated-name .letter:nth-child(1) {
  animation-delay: 0s;
}
.animated-name .letter:nth-child(2) {
  animation-delay: 0.1s;
}
.animated-name .letter:nth-child(3) {
  animation-delay: 0.2s;
}
.animated-name .letter:nth-child(4) {
  animation-delay: 0.3s;
}
.animated-name .letter:nth-child(5) {
  animation-delay: 0.4s;
}
.animated-name .letter:nth-child(6) {
  animation-delay: 0.5s;
}
.animated-name .letter:nth-child(8) {
  animation-delay: 0.6s;
}
.animated-name .letter:nth-child(9) {
  animation-delay: 0.7s;
}
.animated-name .letter:nth-child(10) {
  animation-delay: 0.8s;
}
.animated-name .letter:nth-child(11) {
  animation-delay: 0.9s;
}
.animated-name .letter:nth-child(12) {
  animation-delay: 1s;
}
.animated-name .letter:nth-child(13) {
  animation-delay: 1.1s;
}

@keyframes letterGlow {
  0%,
  100% {
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.8), 0 0 20px rgba(0, 240, 255, 0.6);
    transform: scale(1);
  }
  50% {
    text-shadow: 0 0 20px rgba(0, 240, 255, 1), 0 0 40px rgba(0, 240, 255, 0.8), 0 0 60px rgba(0, 102, 255, 0.6);
    transform: scale(1.1);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.loader-text {
  font-size: clamp(14px, 4vw, 18px);
  color: var(--text-secondary);
  margin-bottom: 30px;
  animation: pulse 1.5s ease-in-out infinite;
  text-align: center;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.progress-bar {
  width: min(300px, 80vw);
  height: 4px;
  background: var(--border-color);
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 10px;
  animation: loading 2.5s ease-out forwards;
}

@keyframes loading {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

/* Main Content */
.main-content {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.main-content.visible {
  opacity: 1;
}

/* Canvas Background */
#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Mobile-friendly header with proper scaling */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.header.scrolled {
  background: rgba(10, 10, 15, 0.95);
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.1);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  min-height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: clamp(18px, 4vw, 24px);
  font-weight: bold;
  z-index: 1001;
}

.logo-img {
  width: clamp(40px, 10vw, 50px);
  height: clamp(40px, 10vw, 50px);
  border-radius: 50%;
  object-fit: cover;
}

.signature-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  height: clamp(30px, 8vw, 50px);
}

.signature-svg {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 1;
  opacity: 0;
  animation: signatureFadeIn 1s ease-in-out 0.5s forwards, signatureLoop 4s ease-in-out 1.5s infinite;
}

.signature-svg path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: signatureDraw 2s ease-in-out forwards, signatureDrawLoop 4s ease-in-out 2s infinite;
}

@keyframes signatureDraw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes signatureDrawLoop {
  0%,
  100% {
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dashoffset: 1000;
  }
}

@keyframes signatureFadeIn {
  to {
    opacity: 0.3;
  }
}

@keyframes signatureLoop {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.6;
  }
}

.signature-text {
  position: relative;
  z-index: 2;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  font-size: clamp(16px, 4vw, 24px);
  white-space: nowrap;
  animation: textShimmer 3s ease-in-out infinite;
}

@keyframes textShimmer {
  0%,
  100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.3) drop-shadow(0 0 8px rgba(0, 240, 255, 0.8));
  }
}

.nav-menu {
  display: flex;
  gap: 30px;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  transition: color 0.3s ease, transform 0.3s ease;
  position: relative;
  padding: 8px 0;
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.mobile-toggle span {
  width: 28px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
  background: var(--primary-color);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
  background: var(--primary-color);
}

/* Mobile navigation with improved visibility and touch targets */
@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(300px, 75vw);
    height: 100vh;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 40px;
    padding: 60px 40px;
    transition: right 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-left: 2px solid var(--border-color);
    z-index: 1000;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    font-size: 20px;
    text-align: center;
    padding: 12px 0;
    opacity: 0;
    transform: translateX(50px);
  }

  .nav-menu.active .nav-link {
    animation: slideInNav 0.5s ease forwards;
  }

  .nav-menu.active .nav-link:nth-child(1) {
    animation-delay: 0.1s;
  }
  .nav-menu.active .nav-link:nth-child(2) {
    animation-delay: 0.15s;
  }
  .nav-menu.active .nav-link:nth-child(3) {
    animation-delay: 0.2s;
  }
  .nav-menu.active .nav-link:nth-child(4) {
    animation-delay: 0.25s;
  }
  .nav-menu.active .nav-link:nth-child(5) {
    animation-delay: 0.3s;
  }
  .nav-menu.active .nav-link:nth-child(6) {
    animation-delay: 0.35s;
  }
  .nav-menu.active .nav-link:nth-child(7) {
    animation-delay: 0.4s;
  }

  @keyframes slideInNav {
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  .nav-link::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

/* Mobile-optimized hero section with readable text */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  padding: clamp(80px, 15vh, 120px) 20px 40px;
}

.hero-content {
  text-align: center;
  animation: fadeInUp 1s ease;
  max-width: 100%;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.typing-text {
  font-family: "Courier New", monospace;
  font-size: clamp(16px, 4vw, 20px);
  color: var(--primary-color);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.typing-symbol {
  color: var(--secondary-color);
  font-weight: bold;
}

.cursor {
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.hero-title {
  font-size: clamp(32px, 8vw, 60px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  word-wrap: break-word;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.glowing-text {
  animation: textGlow 3s ease-in-out infinite;
}

@keyframes textGlow {
  0%,
  100% {
    filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.6));
  }
  50% {
    filter: drop-shadow(0 0 20px rgba(0, 240, 255, 1)) drop-shadow(0 0 30px rgba(0, 102, 255, 0.8));
  }
}

.hero-subtitle {
  font-size: clamp(20px, 5vw, 28px);
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.hero-description {
  font-size: clamp(16px, 3.5vw, 18px);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  padding: 0 10px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.btn {
  padding: clamp(12px, 3vw, 15px) clamp(25px, 6vw, 35px);
  border-radius: 50px;
  font-size: clamp(14px, 3.5vw, 16px);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--bg-dark);
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 240, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--bg-dark);
}

.btn-full {
  width: 100%;
}
.btn-resume {
  background: rgba(0, 240, 255, 0.1);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  position: relative;
  overflow: hidden;
}

.btn-resume::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

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

.btn-resume:hover {
  background: var(--primary-color);
  color: var(--bg-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 240, 255, 0.5);
}


.social-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.social-link {
  width: clamp(45px, 10vw, 50px);
  height: clamp(45px, 10vw, 50px);
  border-radius: 50%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.social-link:hover {
  background: var(--primary-color);
  color: var(--bg-dark);
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 240, 255, 0.3);
}

/* Sections */
.section {
  padding: clamp(60px, 12vh, 100px) 0;
  position: relative;
  z-index: 1;
}

.section-title {
  font-size: clamp(32px, 7vw, 42px);
  text-align: center;
  margin-bottom: clamp(40px, 8vh, 60px);
  position: relative;
  animation: colorChange 5s infinite alternate;
}

@keyframes colorChange {
  0% {
    color: #ff1744;
  }
  50% {
    color: #2979ff;
  }
  75% {
    color: #00c853;
  }
  100% {
    color: #aa00ff;
  }
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: clamp(60px, 15vw, 100px);
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 10px;
}

/* Mobile-friendly about section with stacked layout */
.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: flex-start;
}

@media (min-width: 769px) {
  .about-content {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }
}

.about-paragraph {
  margin-bottom: 20px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: clamp(16px, 3.5vw, 18px);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 20px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
}

.stat-number {
  font-size: clamp(2rem, 6vw, 2.5rem);
  color: var(--primary-color);
  margin-bottom: 10px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: clamp(0.85rem, 3vw, 0.9rem);
}

.editor {
  background: var(--bg-card);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(233, 7, 203, 0.5);
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

.line {
  display: block;
  min-height: 24px;
  line-height: 1.6;
}

.typed-code {
  display: inline-block;
  color: #c9d1d9;
  font-family: "Courier New", monospace;
  font-size: clamp(12px, 3vw, 14px);
}

.color-keyword {
  color: #ff7b72;
}
.color-variable {
  color: #79c0ff;
}
.color-key {
  color: #d2a8ff;
}
.color-string {
  color: #a5d6ff;
}
.color-operator {
  color: #f0883e;
}
.color-punctuation {
  color: #c9d1d9;
}

/* Skills Section */
.logos-section {
  background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(12, 12, 12, 0.8) 100%);
  position: relative;
  overflow: hidden;
}

.logo-carousel-wrapper {
  position: relative;
  overflow: hidden;
  padding: 40px 0;
}

.logo-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.logo-track {
  display: flex;
  gap: clamp(20px, 4vw, 30px);
  animation: scroll 30s linear infinite;
  width: max-content;
}

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

.logo-box {
  flex-shrink: 0;
  padding: clamp(15px, 3vw, 20px) clamp(30px, 6vw, 40px);
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 15px;
  font-size: clamp(16px, 3.5vw, 18px);
  font-weight: 600;
  color: red;
  font-family: cursive;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.logo-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.logo-box:hover::before {
  left: 100%;
}

.logo-box:hover {
  border-color: var(--primary-color);
  color: yellow;
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.3);
  background-color: #2a7b9b;
}

.logo-carousel-wrapper:hover .logo-track {
  animation-play-state: paused;
}

/* Mobile-responsive project and certificate grids */
.projects-grid,
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: clamp(20px, 4vw, 40px);
}

.envelope-container {
  perspective: 1000px;
  cursor: pointer;
  text-align: center;
}

.envelope {
  position: relative;
  width: 100%;
  height: 280px;
  transition: all 0.6s ease;
  transform-style: preserve-3d;
  margin-bottom: 20px;
}

.envelope-container:hover .envelope {
  transform: translateY(-20px) scale(1.05);
}

.envelope-body {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 15px;
  overflow: hidden;
  transition: all 0.4s ease;
}

.envelope-container:hover .envelope-body {
  border-color: var(--primary-color);
  box-shadow: 0 20px 60px rgba(0, 240, 255, 0.4);
}

.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(0, 102, 255, 0.15));
  transform-origin: top center;
  transition: transform 0.6s ease;
  z-index: 2;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.envelope-container:hover .envelope-flap {
  transform: rotateX(-120deg);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.envelope-container:hover .project-img {
  transform: scale(1.1);
}

.project-title {
  font-size: clamp(18px, 4vw, 20px);
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.envelope-container:hover .project-title {
  color: var(--primary-color);
}

/* Certificates */
.certificate-card {
  background: var(--bg-card);
  border-radius: 15px;
  border: 2px solid var(--border-color);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.4s ease;
}

.certificate-card:hover {
  transform: translateY(-10px) scale(1.03);
  border-color: var(--primary-color);
  box-shadow: 0 20px 60px rgba(0, 240, 255, 0.4);
}

.certificate-img-container {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}

.certificate-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.certificate-card:hover .certificate-img {
  transform: scale(1.1);
}

.certificate-title {
  font-size: clamp(16px, 3.5vw, 18px);
  margin: 15px 20px 5px;
  color: var(--text-primary);
}

.certificate-issuer {
  color: var(--primary-color);
  font-size: clamp(13px, 3vw, 14px);
  margin: 0 20px 20px;
  font-weight: 600;
}

/* Mobile-responsive modals with proper sizing */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border-radius: 20px;
  padding: clamp(20px, 5vw, 40px);
  border: 2px solid var(--border-color);
  position: relative;
  animation: slideUp 0.4s ease;
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.project-modal-inner,
.certificate-modal-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 769px) {
  .project-modal-inner,
  .certificate-modal-inner {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

.project-modal-image,
.certificate-modal-image {
  border-radius: 15px;
  overflow: hidden;
  border: 2px solid var(--border-color);
}

.project-modal-image img,
.certificate-modal-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 35px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1;
}

.modal-close:hover {
  color: var(--primary-color);
  transform: rotate(90deg);
}

.modal-title {
  font-size: clamp(22px, 5vw, 28px);
  color: var(--text-primary);
  margin: 0 0 15px 0;
}

.modal-description {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: clamp(14px, 3.5vw, 16px);
  margin-bottom: 20px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.tag {
  padding: 8px 16px;
  background: rgba(0, 240, 255, 0.1);
  color: var(--primary-color);
  border-radius: 20px;
  font-size: clamp(12px, 3vw, 13px);
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.project-links {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.project-link {
  flex: 1;
  min-width: 140px;
  padding: 12px 20px;
  background: transparent;
  color: var(--primary-color);
  text-decoration: none;
  border-radius: 10px;
  font-size: clamp(13px, 3vw, 14px);
  font-weight: 600;
  border: 2px solid var(--primary-color);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.project-link:hover {
  background: var(--primary-color);
  color: var(--bg-dark);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 240, 255, 0.3);
}

.cert-view-btn {
  display: inline-block;
  width: 100%;
  padding: 12px 30px;
  background: var(--primary-color);
  color: var(--bg-dark);
  text-decoration: none;
  border-radius: 25px;
  font-size: clamp(14px, 3.5vw, 16px);
  font-weight: 600;
  transition: all 0.3s ease;
  text-align: center;
  margin-top: 10px;
}

.cert-view-btn:hover {
  background: #00d4ff;
  box-shadow: 0 5px 20px rgba(0, 240, 255, 0.4);
  transform: translateY(-2px);
}

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

@keyframes slideUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Mobile-friendly education roadmap with vertical layout */
.education-roadmap {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  padding: 0 10px;
}

.education-roadmap::before {
  content: "";
  position: absolute;
  left: clamp(20px, 5vw, 50%);
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
  border-radius: 10px;
}

@media (min-width: 769px) {
  .education-roadmap::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

.roadmap-item {
  display: flex;
  margin-bottom: 60px;
  position: relative;
  padding-left: clamp(60px, 12vw, 0);
}

@media (min-width: 769px) {
  .roadmap-left {
    justify-content: flex-end;
    padding-right: 60px;
    padding-left: 0;
  }

  .roadmap-right {
    justify-content: flex-start;
    padding-left: 60px;
  }

  .roadmap-left .roadmap-content {
    text-align: right;
  }

  .roadmap-right .roadmap-content {
    text-align: left;
  }
}

.roadmap-content {
  flex: 1;
  background: var(--bg-card);
  padding: clamp(20px, 4vw, 30px);
  border-radius: 15px;
  border: 2px solid var(--border-color);
  transition: all 0.4s ease;
  max-width: 100%;
}

@media (min-width: 769px) {
  .roadmap-content {
    flex: 0 0 calc(50% - 60px);
  }
}

.roadmap-content:hover {
  transform: scale(1.05);
  border-color: var(--primary-color);
  box-shadow: 0 15px 40px rgba(0, 240, 255, 0.3);
}

.roadmap-dot {
  position: absolute;
  left: clamp(18px, 4vw, 50%);
  top: 30px;
  width: 24px;
  height: 24px;
  background: var(--primary-color);
  border: 4px solid var(--bg-dark);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--primary-color);
  z-index: 10;
}

@media (min-width: 769px) {
  .roadmap-dot {
    left: 50%;
    transform: translateX(-50%);
  }
}

.education-img-container {
  display: flex;
  gap: 15px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.education-img {
  width: clamp(60px, 15vw, 100px);
  height: clamp(60px, 15vw, 100px);
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}

.education-details {
  flex: 1;
  min-width: 200px;
}

.roadmap-year {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(0, 240, 255, 0.1);
  color: var(--primary-color);
  border-radius: 20px;
  font-size: clamp(12px, 3vw, 14px);
  font-weight: 600;
  margin-bottom: 15px;
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.roadmap-title {
  font-size: clamp(20px, 4.5vw, 24px);
  margin-bottom: 8px;
  color: var(--text-primary);
}

.roadmap-institution {
  font-size: clamp(16px, 3.5vw, 18px);
  color: var(--primary-color);
  margin-bottom: 15px;
}

.roadmap-description {
  color: yellow;
  line-height: 1.6;
  font-style: italic;
  font-size: clamp(14px, 3vw, 16px);
}

.college {
  font-size: clamp(18px, 4vw, 20px);
  color: yellowgreen;
  font-style: italic;
  animation: colorChange 3s infinite, blink 3s infinite;
  margin-bottom: 10px;
}

@keyframes blink {
  0%,
  50%,
  100% {
    opacity: 1;
  }
  25%,
  75% {
    opacity: 0;
  }
}

/* Mobile-optimized contact section with stacked layout */
.contact-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 769px) {
  .contact-content {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }
}

.contact-subtitle {
  font-size: clamp(22px, 5vw, 28px);
  margin-bottom: 15px;
  color: var(--text-primary);
}

.contact-text {
  font-size: clamp(16px, 3.5vw, 18px);
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  color: var(--text-secondary);
  font-size: clamp(14px, 3.5vw, 16px);
}

.contact-icon {
  color: var(--primary-color);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-label {
  word-break: break-word;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-input {
  padding: clamp(12px, 3vw, 15px) clamp(15px, 4vw, 20px);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: clamp(14px, 3.5vw, 16px);
  font-family: inherit;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.form-input::placeholder {
  color: var(--text-secondary);
}

textarea.form-input {
  resize: vertical;
  min-height: clamp(100px, 20vh, 120px);
}

/* Footer */
.footer {
  width: 100%;
  padding: 25px 0;
  text-align: center;
  background: #000;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.running-text {
  font-size: clamp(16px, 3.5vw, 18px);
  font-weight: 600;
  background: linear-gradient(90deg, #ff004f, #ffd700, #00ffcc, #00aaff, #ff004f);
  background-size: 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: runColor 5s linear infinite;
}

@keyframes runColor {
  0% {
    background-position: 0%;
  }
  100% {
    background-position: 300%;
  }
}