/* ==========================================================================
   MUHAMMAD FAISAL - PORTFOLIO STYLESHEET
   Senior Frontend Engineer Design System
   Palette: Dark Charcoal/Slate + Indigo/Cyan Accents
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Dark Mode Primary */
  --bg-primary: #0a0d14;
  --bg-secondary: #0f172a;
  --bg-card: #151f32;
  --bg-card-hover: #1a2740;
  --bg-card-elevated: #1e2c47;
  --bg-badge: rgba(99, 102, 241, 0.12);
  --bg-badge-border: rgba(99, 102, 241, 0.28);

  /* Accents & Brand Colors */
  --accent-indigo: #6366f1;
  --accent-cyan: #06b6d4;
  --accent-cyan-light: #22d3ee;
  --accent-indigo-hover: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  --accent-gradient-text: linear-gradient(135deg, #818cf8 0%, #22d3ee 100%);
  --accent-glow: rgba(99, 102, 241, 0.28);
  --accent-cyan-glow: rgba(6, 182, 212, 0.22);
  --success-color: #10b981;
  --success-glow: rgba(16, 185, 129, 0.35);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #818cf8;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(99, 102, 241, 0.45);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 16px 36px -8px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 30px var(--accent-glow);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing & Spacing */
  --header-height: 76px;
  --container-max-width: 1160px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.18s ease;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE ELEMENTS
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Global Responsive Word-Wrap Rules to Prevent Text/Link/Email Overflow */
p, h1, h2, h3, h4, span, a {
  overflow-wrap: break-word;
  word-break: break-word;
}

/* Custom Selection Highlight */
::selection {
  background-color: var(--accent-indigo);
  color: #ffffff;
}

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

ul, ol {
  list-style: none;
}

img, svg {
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --------------------------------------------------------------------------
   3. LAYOUT, CARDS BASE & UTILITIES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  box-sizing: border-box;
}

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

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.section-line {
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  margin: 16px auto 0;
}

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

/* Global Container Cards Rules */
.card,
.about-card,
.project-card,
.contact-card,
.contact-info-card,
.skill-category-card,
.timeline-card {
  max-width: 100%;
  box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   4. HEADER & NAVBAR (FLEXBOX)
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(10, 13, 20, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: background-color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  background-color: rgba(10, 13, 20, 0.94);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  border-bottom-color: rgba(99, 102, 241, 0.15);
}

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

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.accent-dot {
  color: var(--accent-cyan);
  font-size: 1.8rem;
  line-height: 1;
}

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

.nav-list,
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active-link {
  color: var(--text-primary);
}

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

/* Mobile Toggle Hamburger Button (Hidden on Desktop) */
.nav-toggle,
.mobile-toggle,
.hamburger-btn {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.nav-toggle:hover,
.mobile-toggle:hover,
.hamburger-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-indigo);
}

.hamburger-bar {
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Hamburger Active Animation */
.nav-toggle.is-active .hamburger-bar:nth-child(1),
.mobile-toggle.is-active .hamburger-bar:nth-child(1),
.hamburger-btn.is-active .hamburger-bar:nth-child(1),
.nav-toggle.active .hamburger-bar:nth-child(1),
.mobile-toggle.active .hamburger-bar:nth-child(1),
.hamburger-btn.active .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .hamburger-bar:nth-child(2),
.mobile-toggle.is-active .hamburger-bar:nth-child(2),
.hamburger-btn.is-active .hamburger-bar:nth-child(2),
.nav-toggle.active .hamburger-bar:nth-child(2),
.mobile-toggle.active .hamburger-bar:nth-child(2),
.hamburger-btn.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .hamburger-bar:nth-child(3),
.mobile-toggle.is-active .hamburger-bar:nth-child(3),
.hamburger-btn.is-active .hamburger-bar:nth-child(3),
.nav-toggle.active .hamburger-bar:nth-child(3),
.mobile-toggle.active .hamburger-bar:nth-child(3),
.hamburger-btn.active .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   5. HERO SECTION (FLEXBOX)
   -------------------------------------------------------------------------- */
.hero {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Background Ambient Glow Behind Hero */
.hero::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(6, 182, 212, 0.05) 50%, transparent 70%);
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: #34d399;
  margin-bottom: 24px;
}

.status-pulse {
  width: 9px;
  height: 9px;
  background-color: var(--success-color);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--success-glow);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 var(--success-glow);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.hero-subtitle .divider {
  color: var(--accent-indigo);
  margin: 0 8px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 30px;
  max-width: 740px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 36px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
}

.meta-icon {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

/* Button Component Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 0.96rem;
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 14px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.social-link:hover {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.12);
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   6. ABOUT SECTION (GRID)
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
}

.about-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.about-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.about-subtitle {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-narrative p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

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

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

.highlights-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.highlight-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.highlight-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--bg-badge);
  border: 1px solid var(--bg-badge-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.highlight-icon svg {
  width: 22px;
  height: 22px;
}

.highlight-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.highlight-text p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   7. SKILLS SECTION (GRID)
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.skill-category-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.category-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.category-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--bg-badge);
  border: 1px solid var(--bg-badge-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.category-icon svg {
  width: 24px;
  height: 24px;
}

.category-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.category-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Badges Grid Layout */
.badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8px 12px;
  background-color: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.skill-badge:hover {
  background-color: var(--bg-badge);
  color: var(--text-primary);
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   8. PROJECTS SECTION (GRID)
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  padding: 36px;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.project-card-inner {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  width: 100%;
}

.project-type-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.project-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-cyan);
}

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

.icon-link {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.icon-link svg {
  width: 18px;
  height: 18px;
}

.icon-link:hover {
  background: var(--bg-badge);
  color: var(--text-primary);
  border-color: var(--accent-indigo);
}

.project-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 16px;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tag {
  display: inline-block;
  padding: 5px 12px;
  background-color: var(--bg-badge);
  border: 1px solid var(--bg-badge-border);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-accent);
  font-family: var(--font-mono);
}

.project-footer {
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
}

.project-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent-cyan);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.project-action-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.project-action-btn:hover {
  color: var(--accent-cyan-light);
  gap: 12px;
}

.project-action-btn:hover svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   9. EXPERIENCE & EDUCATION SECTION (GRID & FLEX)
   -------------------------------------------------------------------------- */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.timeline-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.timeline-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.timeline-header {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.timeline-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.timeline-icon svg {
  width: 24px;
  height: 24px;
}

.experience-icon {
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #818cf8;
}

.education-icon {
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #22d3ee;
}

.timeline-meta {
  flex-grow: 1;
}

.timeline-badge {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.timeline-org {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.timeline-duration {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.timeline-description {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.timeline-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline-points li {
  position: relative;
  padding-left: 20px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.timeline-points li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-size: 1rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   10. CONTACT SECTION & FOOTER (FLEXBOX)
   -------------------------------------------------------------------------- */
.contact-wrapper {
  max-width: 860px;
  margin: 0 auto;
}

.contact-info-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-card);
  text-align: center;
}

.contact-heading {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.contact-subtext {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 660px;
  margin: 0 auto 36px;
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 40px;
  text-align: left;
}

.contact-method-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  min-width: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.contact-method-item:not(.non-link):hover {
  background: var(--bg-badge);
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

.method-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.method-icon svg {
  width: 20px;
  height: 20px;
}

.method-content {
  overflow: hidden;
  min-width: 0;
}

.method-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.method-value {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow-wrap: break-word;
  word-break: break-word;
}

.contact-cta {
  display: flex;
  justify-content: center;
}

/* Footer */
.footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  padding: 50px 0 30px;
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
  text-align: center;
}

.footer-logo {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.footer-tagline {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
}

.footer-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-cyan);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-social-icon {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.footer-social-icon svg {
  width: 18px;
  height: 18px;
}

.footer-social-icon:hover {
  background: var(--bg-badge);
  color: var(--text-primary);
  border-color: var(--accent-indigo);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  width: 100%;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   11. RESPONSIVE DESIGN (@MEDIA QUERIES)
   -------------------------------------------------------------------------- */

/* Tablet (Max Width: 1024px) */
@media (max-width: 1024px) {
  .section {
    padding: 80px 0;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid .skill-category-card:last-child {
    grid-column: span 2;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* Mobile & Small Tablets (Max Width: 768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  .header {
    height: var(--header-height);
  }

  .section {
    padding: 64px 0;
  }

  /* 1. Mobile Navigation Header & Hamburger Button */
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .nav-toggle,
  .mobile-toggle,
  .hamburger-btn {
    display: flex !important;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
  }

  /* 1. Hide inline desktop links (.nav-links) on mobile unless active/open */
  .nav-links:not(.active):not(.is-open),
  .nav-menu:not(.active):not(.is-open),
  .nav-list:not(.active):not(.is-open) {
    display: none !important;
  }

  /* Mobile Dropdown Menu when toggled active by JavaScript */
  .nav-menu.is-open,
  .nav-menu.active,
  .nav-links.is-open,
  .nav-links.active {
    display: flex !important;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: rgba(10, 13, 20, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 24px 20px 32px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    flex-direction: column;
    align-items: flex-start;
    z-index: 999;
  }

  .nav-menu.is-open .nav-links,
  .nav-menu.is-open .nav-list,
  .nav-menu.active .nav-links,
  .nav-menu.active .nav-list {
    display: flex !important;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 16px;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    font-size: 1.12rem;
    font-weight: 600;
    display: block;
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav-link::after {
    display: none;
  }

  /* 2. Container Cards Mobile Responsiveness & Padding */
  .card,
  .about-card,
  .project-card,
  .contact-card,
  .contact-info-card,
  .skill-category-card,
  .timeline-card {
    max-width: 100%;
    box-sizing: border-box;
    padding: 1.25rem !important;
  }

  .project-card .project-card-inner {
    padding: 0;
  }

  /* Hero Section Mobile */
  .hero {
    padding-top: calc(var(--header-height) + 30px);
    padding-bottom: 60px;
    min-height: auto;
  }

  .hero-meta {
    flex-direction: column;
    gap: 10px;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .hero-socials {
    flex-wrap: wrap;
    width: 100%;
  }

  .social-link {
    flex-grow: 1;
    justify-content: center;
  }

  /* Grids Collapse to 1 Column */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid .skill-category-card:last-child {
    grid-column: span 1;
  }

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

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

  .contact-methods {
    grid-template-columns: 1fr;
  }

  .contact-cta .btn {
    width: 100%;
  }
}

/* Extra Small Mobile (Max Width: 480px) */
@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .card,
  .about-card,
  .project-card,
  .contact-card,
  .contact-info-card,
  .skill-category-card,
  .timeline-card {
    padding: 1.25rem !important;
  }

  .badges-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
}