/* ==========================================================================
   Mohamed Ayad - Senior Mobile Software Engineer Portfolio Stylesheet
   Modern, Sleek, Dark Glassmorphic Design with Flutter-inspired Accents
   ========================================================================== */

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(56, 189, 248, 0.45);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --flutter-blue: #0284c7;
  --flutter-cyan: #38bdf8;
  --flutter-deep: #0369a1;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #0284c7 50%, #8b5cf6 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.15), transparent 70%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 36px -6px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(56, 189, 248, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Background Ambient Glows */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(130px);
  pointer-events: none;
  z-index: 0;
}
.glow-1 {
  top: -100px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: rgba(56, 189, 248, 0.12);
}
.glow-2 {
  top: 35%;
  left: -150px;
  width: 650px;
  height: 650px;
  background: rgba(139, 92, 246, 0.08);
}
.glow-3 {
  bottom: 10%;
  right: -100px;
  width: 600px;
  height: 600px;
  background: rgba(16, 185, 129, 0.08);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: var(--flutter-cyan);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover {
  color: #7dd3fc;
}

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

/* Container & Sections */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-full);
  color: var(--flutter-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 auto;
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.navbar .nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.brand-badge {
  width: 38px;
  height: 38px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--flutter-cyan);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--flutter-cyan);
  transition: var(--transition-fast);
  border-radius: 2px;
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  outline: none;
  text-decoration: none !important;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.5);
  color: #fff !important;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff !important;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding-top: 9.5rem;
  padding-bottom: 5rem;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  color: #34d399;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  position: relative;
}
.status-dot::after {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.4);
  animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

.hero-greeting {
  font-size: 1.25rem;
  color: var(--flutter-cyan);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero-name {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  letter-spacing: -0.03em;
}

.hero-title {
  font-size: 1.55rem;
  color: #e2e8f0;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-bio {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.25rem;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-pill {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: var(--transition-smooth);
}

.social-pill:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--flutter-cyan);
  color: var(--flutter-cyan);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(56, 189, 248, 0.2);
}

/* Hero Visual / Avatar */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.avatar-wrapper {
  position: relative;
  width: 320px;
  height: 380px;
}

.avatar-backdrop {
  position: absolute;
  inset: -10px;
  background: var(--gradient-primary);
  border-radius: 28px;
  opacity: 0.4;
  filter: blur(20px);
  transform: rotate(-3deg);
  transition: var(--transition-smooth);
}

.avatar-card {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 24px;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.15);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-lg);
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}

.avatar-wrapper:hover .avatar-img {
  transform: scale(1.04);
}

.avatar-wrapper:hover .avatar-backdrop {
  opacity: 0.65;
  filter: blur(24px);
}

/* Floating Badges */
.floating-badge {
  position: absolute;
  padding: 0.6rem 1rem;
  background: rgba(17, 24, 39, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
  animation: float 4s ease-in-out infinite;
  z-index: 2;
}

.floating-badge i {
  color: var(--flutter-cyan);
  font-size: 1.1rem;
}

.badge-top-left {
  top: 20px;
  left: -40px;
  animation-delay: 0s;
}

.badge-bottom-right {
  bottom: 30px;
  right: -35px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Stats Counter Bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--border-color);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--flutter-cyan);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-highlight {
  color: var(--text-primary);
  font-weight: 600;
}

.info-cards-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  transition: var(--transition-fast);
}

.info-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--flutter-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.info-meta span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.2rem;
}

.info-meta strong {
  color: var(--text-primary);
  font-size: 0.95rem;
  word-break: break-word;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.skill-category-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.category-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--flutter-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.category-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-sm);
  color: #e2e8f0;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.skill-tag:hover {
  background: rgba(56, 189, 248, 0.12);
  border-color: var(--flutter-cyan);
  color: var(--flutter-cyan);
}

/* Experience Section (Timeline) */
.timeline-wrapper {
  max-width: 950px;
  margin: 0 auto;
  position: relative;
}

.timeline-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--flutter-cyan), var(--accent-purple), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: 11px;
  top: 6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--flutter-cyan);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.6);
  z-index: 2;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition-smooth);
}

.timeline-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.timeline-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-company {
  color: var(--flutter-cyan);
  font-size: 1.05rem;
  font-weight: 600;
}

.timeline-date {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.timeline-bullets {
  list-style: none;
  margin-bottom: 1.25rem;
}

.timeline-bullets li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0.6rem;
}

.timeline-bullets li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--flutter-cyan);
  font-weight: bold;
}

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

.tech-chip {
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-sm);
  color: var(--flutter-cyan);
  font-weight: 600;
}

/* Projects Section */
.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.6rem 1.4rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.project-card.featured {
  border-color: rgba(56, 189, 248, 0.35);
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.08) 0%, rgba(17, 24, 39, 0.85) 100%);
}

.project-badge-top {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  padding: 0.25rem 0.65rem;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-full);
  color: #c084fc;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.project-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--flutter-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.project-card.featured .project-icon-box {
  background: var(--gradient-primary);
  color: #fff;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.project-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-sm);
  color: #cbd5e1;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition-fast);
}

.project-link-btn:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--flutter-cyan);
  color: var(--flutter-cyan);
}

/* Open Source Hub Cards */
.os-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.os-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.os-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.os-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.os-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.15);
  color: #c084fc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.os-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.os-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.15);
  color: var(--flutter-cyan);
  font-weight: 600;
  display: inline-block;
  margin-top: 0.2rem;
}

/* Articles / Technical Insights Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.article-card:hover {
  border-color: var(--border-color-hover);
  background: var(--bg-card-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.article-tag {
  color: var(--flutter-cyan);
  font-weight: 600;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.article-summary {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.article-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--flutter-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.article-link:hover {
  gap: 0.6rem;
}

/* Quranic Ayah / Spiritual Banner */
.quran-banner {
  background: radial-gradient(circle at 50% 50%, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
  max-width: 950px;
  margin: 0 auto;
}

.quran-banner::before {
  content: '﷽';
  font-size: 2.5rem;
  color: rgba(245, 158, 11, 0.25);
  display: block;
  margin-bottom: 1rem;
  font-family: 'Amiri', serif;
}

.quran-arabic {
  font-family: 'Amiri', 'Cairo', serif;
  font-size: 1.85rem;
  line-height: 2;
  color: #fef08a;
  margin-bottom: 1rem;
  direction: rtl;
}

.quran-ref {
  font-size: 0.95rem;
  color: #f59e0b;
  font-weight: 600;
  margin-bottom: 1rem;
}

.quran-translation {
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-style: italic;
  max-width: 700px;
  margin: 0 auto;
}

/* Education Section */
.education-card {
  max-width: 850px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  box-shadow: var(--shadow-sm);
}

.edu-icon-wrapper {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--flutter-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.edu-details h3 {
  font-size: 1.35rem;
  margin-bottom: 0.4rem;
}

.edu-details .edu-inst {
  color: var(--flutter-cyan);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.edu-details .edu-loc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-card-link {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: var(--transition-fast);
  color: inherit;
}

.contact-card-link:hover {
  border-color: var(--flutter-cyan);
  background: var(--bg-card-hover);
  transform: translateX(4px);
  color: inherit;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--flutter-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-text span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.2rem;
}

.contact-text strong {
  color: var(--text-primary);
  font-size: 1rem;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.2rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--flutter-cyan);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* Interactive CV Modal */
.cv-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.cv-modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.cv-modal-box {
  background: #111827;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 850px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
  padding: 3rem 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.4);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-name {
    font-size: 3rem;
  }
  .skills-grid, .projects-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .os-grid {
    grid-template-columns: 1fr;
  }
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .stat-item:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-name {
    font-size: 2.5rem;
  }
  
  .hero-bio {
    margin: 0 auto 2rem;
  }
  
  .hero-actions, .hero-socials {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid, .projects-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-bar {
    grid-template-columns: 1fr 1fr;
    padding: 1.5rem 1rem;
  }
  
  .education-card {
    flex-direction: column;
    text-align: center;
  }
  
  .timeline-wrapper::before {
    left: 10px;
  }
  .timeline-item {
    padding-left: 38px;
  }
  .timeline-marker {
    left: 1px;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: rgba(11, 15, 25, 0.98);
  backdrop-filter: blur(20px);
  padding: 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform: translateY(-120%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
}

.mobile-nav-drawer.open {
  transform: translateY(0);
}

.mobile-nav-drawer a {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-nav-drawer a:hover {
  color: var(--flutter-cyan);
}