/* ==========================================================================
   Marine Surveying & Geomatics Portfolio Design System
   Hamza El-Sayed Hekal | حمزه السيد هيكل
   Fully Mobile Responsive (iOS & Android)
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Alexandria:wght@300;400;500;600;700;800&family=Cairo:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Hydrographic Palette */
  --bg-deep-ocean: #03071e;
  --bg-navy-main: #0a1128;
  --bg-card-glass: rgba(10, 25, 47, 0.75);
  --bg-card-border: rgba(0, 245, 212, 0.18);
  
  --primary-cyan: #00f5d4;
  --primary-cyan-glow: rgba(0, 245, 212, 0.35);
  --accent-marine-blue: #0066cc;
  --accent-soft-cyan: #00b4d8;
  --accent-deep-cyan: #0077b6;
  
  --text-white: #ffffff;
  --text-light: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dark: #0f172a;
  
  --font-arabic: 'Cairo', 'Alexandria', sans-serif;
  --font-english: 'Outfit', 'Inter', sans-serif;

  --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --shadow-sonar: 0 0 25px rgba(0, 245, 212, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden !important;
}

body {
  background-color: var(--bg-deep-ocean);
  color: var(--text-light);
  font-family: var(--font-arabic);
  line-height: 1.7;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden !important;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(0, 102, 204, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 85% 70%, rgba(0, 245, 212, 0.14) 0%, transparent 50%);
  background-attachment: fixed;
}

body.font-en {
  font-family: var(--font-english);
}

body.menu-open {
  overflow: hidden;
}

/* Bathymetric Grid Background Overlay */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 245, 212, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 212, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
}

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

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-fast);
  padding: 1rem 0;
  background: rgba(3, 7, 30, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 245, 212, 0.1);
}

.header.scrolled {
  background: rgba(3, 7, 30, 0.95);
  backdrop-filter: blur(16px);
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(0, 245, 212, 0.2);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-sonar-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-marine-blue), var(--bg-navy-main));
  border: 1.5px solid var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-cyan);
  font-size: 1.15rem;
  box-shadow: 0 0 15px rgba(0, 245, 212, 0.3);
  animation: sonarPulse 3s infinite;
  flex-shrink: 0;
}

@keyframes sonarPulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 245, 212, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(0, 245, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 245, 212, 0); }
}

.brand-text .brand-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
}

.brand-text .brand-role {
  font-size: 0.75rem;
  color: var(--primary-cyan);
  font-weight: 500;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.nav-link {
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.4rem 0;
  display: inline-block;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary-cyan);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-cyan);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.btn-lang {
  background: rgba(0, 245, 212, 0.1);
  border: 1px solid var(--primary-cyan);
  color: var(--primary-cyan);
  padding: 0.5rem 0.9rem;
  min-height: 42px;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.88rem;
  transition: var(--transition-fast);
}

.btn-lang:hover, .btn-lang:active {
  background: var(--primary-cyan);
  color: var(--bg-deep-ocean);
  box-shadow: var(--shadow-sonar);
}

.btn-primary {
  background: linear-gradient(135deg, #00b4d8, #0066cc);
  color: var(--text-white);
  padding: 0.65rem 1.3rem;
  min-height: 44px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  box-shadow: 0 4px 15px rgba(0, 102, 204, 0.4);
  touch-action: manipulation;
}

.btn-primary:hover, .btn-primary:active {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 245, 212, 0.4);
  color: var(--text-white);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary-cyan);
  color: var(--primary-cyan);
  padding: 0.65rem 1.3rem;
  min-height: 44px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  touch-action: manipulation;
}

.btn-outline:hover, .btn-outline:active {
  background: rgba(0, 245, 212, 0.15);
  box-shadow: var(--shadow-sonar);
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: rgba(0, 245, 212, 0.1);
  border: 1px solid rgba(0, 245, 212, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  gap: 5px;
  z-index: 1001;
}

.mobile-toggle span {
  width: 22px;
  height: 2px;
  background-color: var(--primary-cyan);
  transition: var(--transition-fast);
  border-radius: 2px;
}

.mobile-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero Section */
.hero-section {
  padding: 8rem 0 4rem;
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 245, 212, 0.08);
  border: 1px solid rgba(0, 245, 212, 0.3);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  color: var(--primary-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.hero-title .text-glow {
  background: linear-gradient(135deg, #ffffff, var(--primary-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--accent-soft-cyan);
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.hero-bio {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
}

/* Hero Image & Sonar Canvas */
.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.sonar-canvas-bg {
  position: absolute;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.photo-frame {
  position: relative;
  width: 100%;
  max-width: 300px;
  height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  z-index: 2;
  border: 2px solid var(--primary-cyan);
  box-shadow: 0 0 35px rgba(0, 245, 212, 0.3), 0 20px 40px rgba(0, 0, 0, 0.6);
  background: var(--bg-navy-main);
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s ease;
}

.photo-frame::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 35%;
  background: linear-gradient(to top, rgba(3, 7, 30, 0.85), transparent);
}

/* Floating Stats Grid */
.hero-stats-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-top: 1.5rem;
  width: 100%;
}

.stat-card {
  background: var(--bg-card-glass);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(12px);
  padding: 1.2rem 1rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-cyan);
  box-shadow: var(--shadow-sonar);
}

.stat-number {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  color: var(--primary-cyan);
  margin-bottom: 0.2rem;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Section Header */
.section {
  padding: 5rem 0;
  position: relative;
  width: 100%;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-cyan), var(--accent-marine-blue));
  margin: 0.7rem auto 0;
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--accent-soft-cyan);
  font-weight: 500;
}

/* Cards & Glassmorphism Surfaces */
.glass-card {
  background: var(--bg-card-glass);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(0, 245, 212, 0.4);
  box-shadow: var(--shadow-card);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  width: 100%;
}

.about-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-light);
}

.about-text p {
  margin-bottom: 1.2rem;
}

.personal-info-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.info-item {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border-inline-start: 3px solid var(--primary-cyan);
}

.info-item .label {
  font-weight: 600;
  color: var(--primary-cyan);
  display: block;
  font-size: 0.82rem;
}

.info-item .value {
  color: var(--text-white);
  font-weight: 500;
  font-size: 0.95rem;
  word-break: break-word;
}

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

.pillar-card {
  background: rgba(10, 17, 40, 0.85);
  border: 1px solid rgba(0, 245, 212, 0.15);
  padding: 1.3rem;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-cyan);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 245, 212, 0.1);
  color: var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

.pillar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.4rem;
}

.pillar-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Education Section */
.edu-card {
  display: flex;
  gap: 1.8rem;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.edu-icon-col {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-marine-blue), var(--bg-navy-main));
  border: 2px solid var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-cyan);
  font-size: 1.8rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sonar);
}

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

.edu-degree {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 0.3rem;
}

.edu-university {
  font-size: 1.05rem;
  color: var(--primary-cyan);
  font-weight: 600;
  margin-bottom: 0.9rem;
}

.edu-highlights {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.edu-highlight-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
}

.edu-highlight-item i {
  color: var(--primary-cyan);
}

/* Experience Section */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline-item {
  position: relative;
  padding-inline-start: 2.5rem;
  margin-bottom: 2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: -2rem;
  inset-inline-start: 0.8rem;
  width: 2px;
  background: rgba(0, 245, 212, 0.2);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-dot {
  position: absolute;
  top: 0;
  inset-inline-start: 0.25rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-deep-ocean);
  border: 3px solid var(--primary-cyan);
  box-shadow: 0 0 10px var(--primary-cyan);
}

.exp-tasks-list {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.exp-task-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(0, 245, 212, 0.1);
  padding: 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.exp-task-card:hover {
  background: rgba(0, 245, 212, 0.05);
  border-color: var(--primary-cyan);
}

.exp-task-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.exp-task-title i {
  color: var(--primary-cyan);
}

/* Skills Section */
.skills-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.skill-category-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-cyan);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.skill-pills-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.skill-pill-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(0, 245, 212, 0.12);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-white);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.skill-pill-item:hover {
  background: rgba(0, 245, 212, 0.1);
  border-color: var(--primary-cyan);
}

.skill-pill-item i {
  color: var(--accent-soft-cyan);
}

/* Portfolio Section */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.portfolio-card {
  background: var(--bg-card-glass);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-cyan);
  box-shadow: 0 15px 35px rgba(0, 245, 212, 0.25);
}

.portfolio-img-wrapper {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.portfolio-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-img-wrapper img {
  transform: scale(1.06);
}

.portfolio-category-badge {
  position: absolute;
  top: 0.8rem;
  inset-inline-end: 0.8rem;
  background: rgba(3, 7, 30, 0.85);
  border: 1px solid var(--primary-cyan);
  color: var(--primary-cyan);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
}

.portfolio-content {
  padding: 1.3rem;
}

.portfolio-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.5rem;
}

.portfolio-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* QR Code Section */
.qr-section-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
}

.qr-box-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-navy-main);
  border: 2px solid var(--primary-cyan);
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sonar);
  text-align: center;
}

.qr-canvas-element {
  border-radius: var(--radius-sm);
  padding: 10px;
  background: #ffffff;
  margin-bottom: 1.2rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  max-width: 100%;
  height: auto;
}

.qr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  width: 100%;
  justify-content: center;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 2.5rem;
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 245, 212, 0.1);
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(0, 245, 212, 0.1);
  color: var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-details .label {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: block;
}

.contact-details .value {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-white);
  word-break: break-all;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.form-control {
  width: 100%;
  background: rgba(3, 7, 30, 0.8);
  border: 1px solid rgba(0, 245, 212, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-white);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-cyan);
  box-shadow: 0 0 15px rgba(0, 245, 212, 0.25);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* Modal CV */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(3, 7, 30, 0.9);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
  padding: 1rem;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-navy-main);
  border: 2px solid var(--primary-cyan);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 850px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-sonar);
}

.modal-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(0, 245, 212, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
}

.btn-close-modal {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 5px;
  transition: var(--transition-fast);
}

.btn-close-modal:hover {
  color: var(--primary-cyan);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  color: var(--text-light);
  line-height: 1.8;
}

.modal-footer {
  padding: 0.8rem 1.5rem;
  border-top: 1px solid rgba(0, 245, 212, 0.2);
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem;
  background: rgba(3, 7, 30, 0.5);
}

/* Toast Container */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  inset-inline-end: 1.5rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-width: calc(100vw - 3rem);
}

.toast-message {
  background: var(--bg-navy-main);
  border: 1px solid var(--primary-cyan);
  color: var(--text-white);
  padding: 0.9rem 1.3rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sonar);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.92rem;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

.toast-message.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-message i {
  color: var(--primary-cyan);
  font-size: 1.1rem;
}

/* Footer */
.footer {
  background: rgba(3, 7, 30, 0.95);
  border-top: 1px solid rgba(0, 245, 212, 0.15);
  padding: 2.5rem 0 2rem;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}

.footer-coordinates {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--primary-cyan);
  background: rgba(0, 245, 212, 0.08);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 245, 212, 0.2);
}

/* Scroll Reveal */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Media Queries (Mobile & Tablet) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-bio {
    margin: 0 auto 1.8rem;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid, .qr-section-wrapper, .contact-grid {
    grid-template-columns: 1fr;
  }
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .skills-matrix {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 0.8rem 0;
  }
  .mobile-toggle {
    display: flex;
  }

  /* Full Screen Mobile Navigation Drawer */
  .nav-menu {
    position: fixed;
    top: 68px;
    inset-inline-start: 0;
    width: 100vw;
    height: calc(100vh - 68px);
    background: rgba(3, 7, 30, 0.98);
    backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: flex-start;
    padding: 2.5rem 1.5rem;
    gap: 1.2rem;
    border-bottom: 1px solid rgba(0, 245, 212, 0.2);
    transform: translateY(-120%);
    transition: var(--transition-smooth);
    z-index: 999;
    overflow-y: auto;
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-link {
    font-size: 1.15rem;
    padding: 0.6rem 0;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav-actions {
    gap: 0.5rem;
  }

  .nav-actions .btn-primary span {
    display: none;
  }

  .nav-actions .btn-primary {
    padding: 0.5rem 0.8rem;
    min-height: 42px;
  }

  .hero-section {
    padding: 6.5rem 0 3rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .photo-frame {
    max-width: 260px;
    height: 320px;
  }

  .hero-stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
  }

  .stat-card {
    padding: 1rem 0.6rem;
  }

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

  .edu-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .edu-highlights {
    grid-template-columns: 1fr;
  }

  .personal-info-list, .pillars-grid {
    grid-template-columns: 1fr;
  }

  .qr-box-container {
    padding: 1.2rem;
  }

  .qr-actions {
    flex-direction: column;
    width: 100%;
  }

  .qr-actions button {
    width: 100%;
  }

  .timeline-item {
    padding-inline-start: 1.8rem;
  }
}

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

  .brand-text .brand-name {
    font-size: 1rem;
  }

  .brand-text .brand-role {
    font-size: 0.68rem;
  }

  .btn-primary, .btn-outline {
    width: 100%;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta a {
    width: 100%;
    justify-content: center;
  }
}