/* Main Styles for Tauseef Usman's Portfolio */

/* Base Styles */
:root {
  --primary-color: #0a4b78;
  --secondary-color: #176f6b;
  --accent-color: #e9a721;
  --dark-color: #2c3e50;
  --light-color: #f8f9fa;
  --text-color: #333;
  --text-light: #6c757d;
  --border-color: #dee2e6;
  --transition: all 0.3s ease-in-out;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --border-radius: 5px;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-color);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--dark-color);
}

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

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

/* Utility Classes */
.section-header {
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 15px;
}

.section-subheading {
  color: var(--text-light);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.divider {
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  margin: 15px auto 20px;
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}

.divider span {
  position: absolute;
  height: 100%;
  width: 33%;
  background-color: var(--accent-color);
  top: 0;
  animation: divider-animation 2s infinite linear;
}

@keyframes divider-animation {
  0% { left: -33%; }
  100% { left: 100%; }
}

.page-section {
  padding: 100px 0;
}

.bg-light {
  background-color: var(--light-color) !important;
}

/* Navigation */
#mainNav {
  background-color: var(--primary-color);
  transition: var(--transition);
  padding: 15px 0;
}

#mainNav .navbar-brand {
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
}

#mainNav .navbar-brand .first-name {
  font-weight: 400;
}

#mainNav .navbar-brand .last-name {
  color: var(--accent-color);
}

#mainNav .navbar-toggler {
  font-size: 1rem;
  right: 0;
  color: white;
  border: 0;
}

#mainNav .navbar-nav .nav-item .nav-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
}

#mainNav .navbar-nav .nav-item .nav-link:hover {
  color: var(--accent-color);
}

#mainNav .navbar-nav .nav-item .download-btn {
  background-color: var(--accent-color);
  color: #fff;
  border-radius: 30px;
  padding: 0.5rem 1rem;
  margin-left: 10px;
  font-weight: 600;
  border: 2px solid var(--accent-color);
}

#mainNav .navbar-nav .nav-item .download-btn:hover {
  background-color: transparent;
  color: var(--accent-color);
}

/* Hero/Masthead */
.masthead {
  padding-top: 10rem;
  padding-bottom: 6rem;
  position: relative;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: #fff;
  height: 100vh;
  min-height: 650px;
  display: flex;
  align-items: center;
}

.masthead:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon fill="white" opacity="0.05" points="100,0 100,100 0,100"/></svg>');
  background-size: cover;
}

.masthead-text {
  position: relative;
  z-index: 1;
}

.masthead .greeting {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 10px;
}

.masthead .name {
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
}

.masthead .title {
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 30px;
}

.masthead .tagline {
  font-size: 1.2rem;
  font-weight: 300;
  margin-bottom: 40px;
}

.hero-btns .btn {
  padding: 12px 30px;
  font-weight: 600;
  border-radius: 30px;
  letter-spacing: 0.5px;
}

.hero-btns .btn-primary {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
}

.hero-btns .btn-primary:hover {
  background-color: transparent;
  color: var(--accent-color);
}

.hero-btns .btn-outline-light:hover {
  color: var(--primary-color);
}

.profile-image-container {
  position: relative;
  width: 360px;
  height: 360px;
  margin: 0 auto;
}

.profile-image {
  width: 320px;
  height: 320px;
  object-fit: cover;
  border: 8px solid rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 2;
}

.blob {
  position: absolute;
  width: 340px;
  height: 340px;
  top: -10px;
  left: 20px;
  background: var(--accent-color);
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  animation: blob-animation 8s ease-in-out infinite;
  opacity: 0.7;
  z-index: 1;
}

@keyframes blob-animation {
  0% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  25% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
  50% { border-radius: 50% 60% 30% 70% / 40% 40% 70% 50%; }
  75% { border-radius: 40% 50% 60% 40% / 60% 30% 70% 40%; }
  100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
}

/* About Section */
.about-image-container {
  position: relative;
  padding: 20px;
  margin-bottom: 30px;
}

.about-image {
  box-shadow: var(--box-shadow);
  border: 5px solid #fff;
}

.about-content .lead {
  font-weight: 500;
  font-size: 1.15rem;
  margin-bottom: 20px;
  color: var(--dark-color);
}

.about-content p {
  margin-bottom: 15px;
}

.personal-info {
  background-color: white;
  border-radius: var(--border-radius);
  padding: 25px;
  margin-top: 30px;
  box-shadow: var(--box-shadow);
}

.info-item {
  margin-bottom: 15px;
}

.info-label {
  font-weight: 600;
  color: var(--dark-color);
  display: inline-block;
  margin-right: 10px;
  min-width: 80px;
}

.social-links {
  display: flex;
  gap: 10px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--accent-color);
  color: white;
  transform: translateY(-3px);
}

/* Expertise Section */
.expertise-card {
  background-color: #fff;
  border-radius: var(--border-radius);
  padding: 30px;
  height: 100%;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

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

.expertise-card:before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  width: 0;
  height: 0;
  background-color: rgba(10, 75, 120, 0.05);
  border-radius: 50%;
  transition: all 0.6s ease-out;
  z-index: -1;
}

.expertise-card:hover:before {
  width: 200%;
  height: 200%;
}

.expertise-icon {
  margin-bottom: 20px;
  width: 70px;
  height: 70px;
  line-height: 70px;
  text-align: center;
  background-color: rgba(10, 75, 120, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.expertise-icon i {
  font-size: 30px;
  color: var(--primary-color);
}

.expertise-card h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.expertise-card p {
  color: var(--text-light);
  margin-bottom: 0;
}

/* Experience Section - Timeline */
.timeline {
  position: relative;
  padding: 0;
}

.timeline:before {
  content: '';
  position: absolute;
  width: 2px;
  height: 100%;
  background: var(--primary-color);
  left: 50%;
  transform: translateX(-50%);
}

.timeline-item {
  margin-bottom: 50px;
  position: relative;
}

.timeline-dot {
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 50%;
  position: absolute;
  top: 60px; /* Moved down to avoid overlapping with date */
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.timeline-date {
  position: absolute;
  width: 135px;
  background: var(--primary-color);
  color: #fff;
  left: 50%;
  top: 30px;
  transform: translateX(-50%);
  padding: 5px 15px;
  border-radius: 20px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 2; /* Added higher z-index to ensure it's above other elements */
}

.timeline-content {
  width: calc(50% - 40px);
  padding-top: 60px; /* Increased to accommodate the adjusted timeline-dot position */
  padding-bottom: 20px;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: auto;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-right: auto;
}

.timeline-item .card {
  box-shadow: var(--box-shadow);
  border: none;
}

.timeline-item .card-body {
  padding: 25px;
}

.timeline-item .card-title {
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.timeline-item .card-subtitle {
  margin-bottom: 20px;
  color: var(--text-light);
  font-weight: 500;
}

.timeline-end {
  position: relative;
  height: 50px;
  margin-bottom: 50px;
}

.timeline-end-dot {
  width: 30px;
  height: 30px;
  background: var(--primary-color);
  border: 5px solid var(--light-color);
  border-radius: 50%;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.achievements h5 {
  font-size: 1.1rem;
  margin-top: 20px;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.achievements ul.fa-ul {
  margin-left: 2em;
}

.achievements .fa-li {
  color: var(--primary-color);
}

/* Skills Section */
.skills-tabs .nav-pills {
  gap: 10px;
  margin-bottom: 40px;
}

.skills-tabs .nav-pills .nav-link {
  background-color: transparent;
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
  font-weight: 500;
  border-radius: 30px;
  padding: 10px 25px;
  transition: var(--transition);
}

.skills-tabs .nav-pills .nav-link.active, 
.skills-tabs .nav-pills .nav-link:hover {
  background-color: var(--primary-color);
  color: #fff;
}

.skill-category {
  background-color: #fff;
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--box-shadow);
}

.skills-container {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.skill-item {
  position: relative;
}

.skill-info h4 {
  font-size: 1rem;
  margin-bottom: 10px;
}

.skill-progress {
  display: flex;
  align-items: center;
  gap: 15px;
}

.skill-progress .progress {
  flex-grow: 1;
  border-radius: 10px;
  background-color: #e9ecef;
}

.skill-progress .progress-bar {
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  border-radius: 10px;
  position: relative;
}

.skill-progress span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-color);
  min-width: 40px;
  text-align: right;
}

/* Projects Section */
.project-card {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  background-color: #fff;
  height: 100%;
  transition: var(--transition);
}

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

.project-image {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 75, 120, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-overlay-content {
  text-align: center;
}

.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: #fff;
  color: var(--primary-color);
  border-radius: 50%;
  margin: 5px;
  transition: var(--transition);
}

.project-link:hover {
  background: var(--accent-color);
  color: #fff;
}

.project-info {
  padding: 25px;
}

.project-info h4 {
  font-size: 1.2rem;
  margin-bottom: 15px;
}

.project-info p {
  color: var(--text-light);
  margin-bottom: 15px;
}

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

.project-tags span {
  background-color: rgba(10, 75, 120, 0.1);
  color: var(--primary-color);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
}

/* Education Section */
.education-card {
  display: flex;
  gap: 25px;
  background-color: #fff;
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  margin-bottom: 30px;
}

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

.education-icon {
  min-width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(10, 75, 120, 0.1);
  border-radius: 50%;
  transition: var(--transition);
}

.education-card:hover .education-icon {
  background-color: var(--primary-color);
}

.education-icon i {
  font-size: 30px;
  color: var(--primary-color);
  transition: var(--transition);
}

.education-card:hover .education-icon i {
  color: #fff;
}

.education-content {
  flex-grow: 1;
}

.education-year {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.education-content h4 {
  font-size: 1.3rem;
  margin-bottom: 5px;
}

.education-content h5 {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 5px;
}

.education-content p {
  margin-bottom: 0;
  color: var(--text-light);
}

.cert-card {
  display: flex;
  gap: 20px;
  background-color: #fff;
  border-radius: var(--border-radius);
  padding: 25px;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  height: 100%;
}

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

.cert-icon {
  min-width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(10, 75, 120, 0.1);
  border-radius: 50%;
  transition: var(--transition);
}

.cert-card:hover .cert-icon {
  background-color: var(--primary-color);
}

.cert-icon i {
  font-size: 20px;
  color: var(--primary-color);
  transition: var(--transition);
}

.cert-card:hover .cert-icon i {
  color: #fff;
}

.cert-content {
  flex-grow: 1;
}

.cert-content h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.cert-content p {
  margin-bottom: 0;
  color: var(--text-light);
}

/* Contact Section */
.contact-info-container {
  background-color: #fff;
  border-radius: var(--border-radius);
  padding: 40px;
  box-shadow: var(--box-shadow);
}

.contact-info-card {
  position: relative;
  padding: 20px;
  text-align: center;
  background-color: #fff;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  height: 100%;
}

.contact-info-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-5px);
}

.contact-icon {
  width: 60px;
  height: 60px;
  line-height: 60px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background-color: rgba(10, 75, 120, 0.1);
  color: var(--primary-color);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.contact-info-card:hover .contact-icon {
  background-color: var(--primary-color);
  color: #fff;
}

.contact-info-card h4 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.contact-info-card p {
  color: var(--text-light);
  margin-bottom: 0;
}

.whatsapp-btn {
  background-color: #25D366;
  border-color: #25D366;
  color: #fff;
  border-radius: 30px;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  padding: 0.4rem 0.8rem;
}

.whatsapp-btn:hover {
  background-color: #128C7E;
  border-color: #128C7E;
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.languages-section {
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.language-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.language-name {
  font-weight: 500;
}

.language-level {
  display: flex;
  gap: 5px;
}

.level-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #e9ecef;
  display: inline-block;
}

.level-dot.active {
  background-color: var(--primary-color);
}

/* Footer */
.footer {
  padding: 25px 0;
  background-color: var(--dark-color);
  color: #fff;
}

.btn-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 3.25rem;
  width: 3.25rem;
  background-color: var(--dark-color);
  color: #fff;
  border-radius: 100%;
  font-size: 1.25rem;
  margin-right: 0.5rem;
  transition: var(--transition);
}

.btn-social:hover {
  background-color: var(--accent-color);
  color: #fff;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 105px; /* Adjusted to avoid collision with WhatsApp button */
  z-index: 996;
  background: var(--primary-color);
  width: 40px;
  height: 40px;
  border-radius: 50px;
  transition: all 0.4s;
  color: #fff;
}

.back-to-top i {
  font-size: 24px;
  padding-left: 1px;
}

.back-to-top:hover {
  background: var(--accent-color);
  color: #fff;
}

.back-to-top.active {
  visibility: visible;
  opacity: 1;
}

/* Responsive Styles */
@media (max-width: 991px) {
  .masthead {
    height: auto;
    min-height: auto;
    padding: 120px 0 80px;
  }

  .masthead .name {
    font-size: 3.5rem;
  }

  .masthead .title {
    font-size: 1.5rem;
  }

  .profile-image-container {
    margin-top: 40px;
  }

  .timeline:before {
    left: 40px;
  }
  .timeline-dot {
    left: 40px;
    top: 60px; /* Consistent with the desktop version */
  }

  .timeline-date {
    left: 40px;
    width: 120px; /* Slightly narrower for mobile */
  }
  .timeline-content {
    width: calc(100% - 90px);
    margin-left: 90px !important;
    padding-top: 90px; /* Adjusted for mobile */
  }
}

@media (max-width: 767px) {
  #mainNav .navbar-nav .nav-item .download-btn {
    margin-left: 0;
    margin-top: 10px;
    display: inline-block;
  }

  .masthead .name {
    font-size: 2.8rem;
  }

  .masthead .title {
    font-size: 1.3rem;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .education-card,
  .cert-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .cert-icon,
  .education-icon {
    margin-bottom: 20px;
  }  .contact-info-card {
    margin-bottom: 20px;
  }
  
  /* Adjust floating buttons positioning for mobile */
  .back-to-top {
    bottom: 85px;
    right: 15px;
    width: 35px;
    height: 35px;
  }
  
  .whatsapp-float-btn {
    width: 50px;
    height: 50px;
  }
  
  .whatsapp-float-btn i {
    font-size: 28px;
  }
}

/* WhatsApp Floating Button */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 20px;
  z-index: 999;
}

.whatsapp-float-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: white;
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.whatsapp-float-btn i {
  font-size: 32px;
}

.whatsapp-float-btn:hover {
  background-color: #128C7E;
  color: white;
  transform: translateY(-5px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.25);
}

.whatsapp-tooltip {
  position: absolute;
  top: -40px;
  right: 0;
  background-color: #333;
  color: white;
  padding: 5px 12px;
  border-radius: 5px;
  font-size: 14px;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  pointer-events: none;
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
  transform: translateY(0);
}

/* Animation for the WhatsApp Button */
@keyframes pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }
}

.whatsapp-float-btn {
  animation: pulse 2s infinite;
}