/* ================ BASE STYLES ================ */
:root {
  --primary-bg: #0a0a0a;
  --secondary-bg: #121212;
  --tertiary-bg: #1a1a1a;
  --card-bg: #1e1e1e;
  --accent-color: #ff5757;
  --accent-gradient: linear-gradient(135deg, #ff5757, #ff8a8a);
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-tertiary: #888888;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  --box-shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.2s ease;
}

/* ================ GLOBAL STYLES ================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

/* ================ TYPOGRAPHY ================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
}

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

/* ================ UTILITY CLASSES ================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--accent-color);
  margin: 1rem auto;
  border-radius: 2px;
}

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

.text-lg-start {
  text-align: left;
}

@media (max-width: 992px) {
  .text-lg-start {
    text-align: center;
  }
}

/* ================ BUTTONS ================ */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--primary-bg);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 87, 87, 0.3);
}

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

.btn-outline:hover {
  background-color: var(--accent-color);
  color: var(--primary-bg);
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1.1rem;
}

/* Preloader Styles */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #121212;
  /* Using your primary-bg color */
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

.preloader-content {
  text-align: center;
  position: relative;
}

.preloader-logo-container {
  position: relative;
  margin-bottom: 2rem;
  display: inline-block;
}

.preloader-logo {
  height: 80px;
  filter: drop-shadow(0 0 10px rgba(255, 87, 87, 0.5));
  animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {

  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  50% {
    transform: translateY(-10px) rotate(2deg);
  }
}

.preloader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 87, 87, 0.2);
  border-top: 4px solid #ff5757;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  animation: spin 1.2s linear infinite;
  position: relative;
}

.preloader-spinner::after {
  content: '';
  position: absolute;
  top: -8px;
  left: -8px;
  right: -8px;
  bottom: -8px;
  border: 2px solid transparent;
  border-top: 2px solid rgba(255, 87, 87, 0.5);
  border-radius: 50%;
  animation: spin 1.5s linear infinite reverse;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.preloader-text {
  color: #cccccc;
  font-size: 1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: pulse 2s infinite;
  margin-bottom: 1.5rem;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
  }
}

.preloader-dots {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
  gap: 8px;
}

.preloader-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff5757;
  animation: dotBounce 1.4s infinite ease-in-out;
}

.preloader-dot:nth-child(1) {
  animation-delay: -0.32s;
}

.preloader-dot:nth-child(2) {
  animation-delay: -0.16s;
}

.preloader-dot:nth-child(3) {
  animation-delay: 0s;
}

@keyframes dotBounce {

  0%,
  80%,
  100% {
    transform: scale(0.8);
    opacity: 0.5;
  }

  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.preloader-progress {
  width: 200px;
  height: 4px;
  background: rgba(255, 87, 87, 0.2);
  border-radius: 2px;
  margin: 1rem auto;
  overflow: hidden;
}

.preloader-progress-bar {
  height: 100%;
  width: 0%;
  background: #ff5757;
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Demo content styles */
.demo-content {
  padding: 40px 20px;
  text-align: center;
  background: #1c1c1c;
  color: white;
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
}

.demo-content h1 {
  color: #ff5757;
  margin-bottom: 20px;
}

.demo-content p {
  color: #cccccc;
  max-width: 600px;
  margin: 0 auto 30px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background-color: #ff5757;
  color: #121212;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 87, 87, 0.3);
}

.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.feature-card {
  background: #232323;
  border-radius: 12px;
  padding: 20px;
  width: 200px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-card i {
  font-size: 2rem;
  color: #ff5757;
  margin-bottom: 15px;
}

/* ================ NAVBAR ================ */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  padding: 15px 0;
}

.navbar.scrolled {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  padding: 10px 0;
}

.logo-img {
  height: 30px;
  transition: var(--transition);
}

.logo-img:hover {
  transform: scale(1.05);
}

.nav-link {
  position: relative;
  padding: 0.5rem 1rem;
  font-weight: 500;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: var(--transition);
}

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

/* ================ BLOG POST STYLES ================ */
.blog-header {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.blog-category {
  background: var(--accent-gradient);
  color: var(--primary-bg);
  padding: 6px 16px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
}

.blog-date {
  color: var(--text-tertiary);
  font-size: 0.95rem;
}

.blog-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.blog-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 2rem;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-color);
}

.author-details h4 {
  margin-bottom: 0.25rem;
}

.author-details p {
  color: var(--text-tertiary);
  margin-bottom: 0;
}

.blog-content {
  max-width: 800px;
  margin: 0 auto;
}

.blog-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin: 2rem 0;
  box-shadow: var(--box-shadow);
}

.blog-section {
  margin-bottom: 3rem;
}

.blog-section h2 {
  color: var(--accent-color);
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid var(--accent-color);
}

.blog-section p {
  line-height: 1.8;
}

.highlight-box {
  background: var(--tertiary-bg);
  border-left: 4px solid var(--accent-color);
  padding: 1.5rem;
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  margin: 2rem 0;
}

.trend-list {
  list-style: none;
  margin: 1.5rem 0;
}

.trend-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.trend-list li:before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 10px;
  height: 10px;
  background: var(--accent-color);
  border-radius: 50%;
}

.blog-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--tertiary-bg);
  flex-wrap: wrap;
  gap: 1rem;
}

.tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  background: var(--tertiary-bg);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
}

.share-buttons {
  display: flex;
  gap: 1rem;
}

.share-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--tertiary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.share-btn:hover {
  background: var(--accent-color);
  transform: translateY(-3px);
}

/* ================ RELATED POSTS ================ */
.related-posts {
  background: var(--secondary-bg);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.post-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-lg);
}

.post-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.post-content {
  padding: 1.5rem;
}

.post-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.post-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.post-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* ================ RESPONSIVE ================ */
@media (max-width: 768px) {

  .blog-meta,
  .blog-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .blog-image {
    height: 250px;
  }

  .posts-grid {
    grid-template-columns: 1fr;
  }
}

/* Footer Styles */
.footer {
  background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
  padding: 80px 0 30px;
  position: relative;
  overflow: hidden;
  margin-top: auto;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, #ff5757, transparent);
}

.footer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 20%, rgba(255, 87, 87, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.footer .container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: 30px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.footer-logo:hover {
  transform: translateY(-5px);
}

.footer-logo img {
  height: 65px;
  margin-right: 15px;
  filter: drop-shadow(0 0 8px rgba(255, 87, 87, 0.3));
}

.footer-logo span {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(45deg, #ff5757, #ff8a65);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 25px;
  margin-bottom: 50px;
}

.social-icon {
  font-size: 1.3rem;
  color: #ff5757;
  /* accent-color */
  transition: all 0.3s ease;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 87, 87, 0.2);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.social-icon:hover {
  color: #fff;
  background: #ff5757;
  /* accent-color */
  transform: translateY(-5px) scale(1.1);
  box-shadow: 0 8px 20px rgba(255, 87, 87, 0.3);
}

.footer-links-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-column {
  flex: 1;
  min-width: 200px;
}

.footer-column h5 {
  color: #ff5757;
  /* accent-color */
  margin-bottom: 25px;
  font-size: 1.2rem;
  position: relative;
  padding-bottom: 12px;
  font-weight: 600;
}

.footer-column h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(to right, #ff5757, transparent);
  border-radius: 2px;
}

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

.footer-links li {
  margin-bottom: 15px;
  position: relative;
  padding-left: 15px;
}

.footer-links li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: #ff5757;
  /* accent-color */
  font-weight: bold;
  transition: all 0.3s ease;
}

.footer-link {
  color: #cccccc;
  /* text-secondary */
  transition: all 0.3s ease;
  display: inline-block;
  text-decoration: none;
  position: relative;
}

.footer-link:hover {
  color: #ff5757;
  /* accent-color */
  transform: translateX(5px);
  text-decoration: none;
}

.footer-link:hover::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: #ff5757;
  /* accent-color */
}

.contact-info p {
  display: flex;
  align-items: center;
  margin-bottom: 18px;
  color: #cccccc;
  /* text-secondary */
  transition: all 0.3s ease;
}

.contact-info p:hover {
  color: #fff;
}

.contact-info i {
  margin-right: 12px;
  color: #ff5757;
  /* accent-color */
  min-width: 20px;
  font-size: 1.1rem;
}

.contact-info a {
  color: #cccccc;
  /* text-secondary */
  transition: all 0.3s ease;
  text-decoration: none;
}

.contact-info a:hover {
  color: #ff5757;
  /* accent-color */
  text-decoration: none;
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: 50px 0 30px;
  position: relative;
}

.footer-divider::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 2px;
  background: #ff5757;
  /* accent-color */
  border-radius: 2px;
}

.copyright {
  text-align: center;
  color: #cccccc;
  /* text-secondary */
  font-size: 0.9rem;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.back-to-top {
  position: absolute;
  right: 30px;
  bottom: 30px;
  width: 45px;
  height: 45px;
  background: #ff5757;
  /* accent-color */
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(255, 87, 87, 0.3);
}

.back-to-top:hover {
  transform: translateY(-5px);
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 87, 87, 0.4);
}

/* Newsletter Subscription */
.newsletter {
  background: rgba(255, 87, 87, 0.1);
  border-radius: 12px;
  padding: 30px;
  margin-top: 30px;
  text-align: center;
  border: 1px solid rgba(255, 87, 87, 0.2);
}

.newsletter h5 {
  color: #ff5757;
  /* accent-color */
  margin-bottom: 15px;
}

.newsletter p {
  color: #cccccc;
  /* text-secondary */
  margin-bottom: 20px;
}

.newsletter-form {
  display: flex;
  max-width: 400px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 30px 0 0 30px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  outline: none;
}

.newsletter-input:focus {
  border-color: #ff5757;
  /* accent-color */
}

.newsletter-btn {
  padding: 12px 25px;
  background: #ff5757;
  /* accent-color */
  color: #121212;
  /* primary-bg */
  border: none;
  border-radius: 0 30px 30px 0;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.newsletter-btn:hover {
  background: #ff6b6b;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .footer-links-container {
    flex-direction: column;
    gap: 30px;
  }

  .footer-column {
    text-align: center;
  }

  .footer-column h5::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-links li {
    padding-left: 0;
  }

  .footer-links li::before {
    display: none;
  }

  .back-to-top {
    right: 20px;
    bottom: 20px;
  }

  .newsletter-form {
    flex-direction: column;
    gap: 10px;
  }

  .newsletter-input,
  .newsletter-btn {
    border-radius: 30px;
    width: 100%;
  }
}

/* ================ ANIMATIONS ================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

.delay-3 {
  animation-delay: 0.6s;
}

/* ================ RESPONSIVE ADJUSTMENTS ================ */
@media (max-width: 992px) {
  .section {
    padding: 80px 0;
  }

  .timeline::before {
    left: 31px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }

  .timeline-item:nth-child(even) {
    left: 0;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

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

  .about-content {
    flex-direction: column;
  }

  .contact-wrapper {
    flex-direction: column;
  }

  .project-links {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .testimonials-container {
    grid-template-columns: 1fr;
  }

  .testimonial-card {
    padding: 1.5rem;
  }

  .testimonials-nav {
    gap: 1rem;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    padding-left: 50px;
  }

  .timeline-icon {
    left: 0;
  }

  .certification-grid {
    grid-template-columns: 1fr;
  }

  .badges-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
  }

  .footer-links-container {
    flex-direction: column;
    gap: 30px;
  }

  .footer-column {
    text-align: center;
  }

  .footer-column h5::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 576px) {
  .section {
    padding: 50px 0;
  }

  .section-title {
    margin-bottom: 2rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .social-links {
    gap: 15px;
  }

  .navbar-nav {
    gap: 0;
    margin-bottom: 1rem;
  }

  .nav-link {
    padding: 0.5rem;
  }

  .cta-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .stat-item h3 {
    font-size: 2rem;
  }

  .testimonial-author {
    flex-direction: column;
    text-align: center;
  }

  .footer {
    padding: 60px 0 30px;
  }

  .social-links {
    margin-bottom: 30px;
  }
}

@media (max-width: 480px) {
  .cta-stats {
    grid-template-columns: 1fr;
  }

  .footer {
    padding: 50px 0 20px;
  }

  .footer-logo {
    margin-bottom: 20px;
  }

  .social-links {
    gap: 15px;
    margin-bottom: 20px;
  }

  .social-icon {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .footer-divider {
    margin: 30px 0;
  }
}