/* ==========================================================================
   Suraj Vivek Mude - Professional Portfolio Design System & Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-primary: #070a13;
  --bg-secondary: #0d1322;
  --bg-tertiary: #131b2e;
  --card-bg: rgba(16, 24, 42, 0.7);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(59, 130, 246, 0.4);

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-purple: #8b5cf6;

  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #10b981 100%);
  --gradient-glow: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(6, 182, 212, 0.15));
  --gradient-border: linear-gradient(135deg, rgba(59, 130, 246, 0.5), rgba(6, 182, 212, 0.2));

  --glow-shadow: 0 0 25px rgba(59, 130, 246, 0.25);
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'Fira Code', monospace;

  --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-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-height: 80px;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(0, 0, 0, 0.08);
  --card-border-hover: rgba(59, 130, 246, 0.4);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --gradient-glow: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(6, 182, 212, 0.08));
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue);
}

/* Selection Color */
::selection {
  background: rgba(59, 130, 246, 0.3);
  color: #ffffff;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

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

/* --------------------------------------------------------------------------
   3. Section Titles & Badges
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

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

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header.scrolled {
  height: 70px;
  background: rgba(7, 10, 19, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .header.scrolled {
  background: rgba(248, 250, 252, 0.85);
}

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

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

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

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Switcher Button */
.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--card-border);
  color: var(--accent-cyan);
  transform: rotate(15deg);
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-main);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   5. Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: 1px solid var(--card-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--card-border);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.05);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* Tech Pills */
.tech-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 2rem);
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

/* Background Glow Effects */
.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: 0;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 10%;
  right: -5%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--accent-emerald);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  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, 0.5);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(2); opacity: 0; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.6rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.35rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-bio {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.social-link:hover {
  color: var(--text-main);
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-3px);
}

/* Profile Photo Container */
.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.profile-card {
  position: relative;
  width: 320px;
  height: 380px;
  border-radius: var(--radius-lg);
  padding: 10px;
  background: var(--gradient-border);
  box-shadow: var(--card-shadow), var(--glow-shadow);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 6px);
  filter: brightness(1.02) contrast(1.02);
}

/* Floating Feature Badges */
.floating-badge {
  position: absolute;
  padding: 0.6rem 1rem;
  background: rgba(13, 19, 34, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  z-index: 2;
  font-size: 0.85rem;
  font-weight: 600;
  animation: float 4s ease-in-out infinite;
}

.badge-top-left {
  top: 20px;
  left: -30px;
  animation-delay: 0s;
}

.badge-bottom-right {
  bottom: 30px;
  right: -25px;
  animation-delay: 2s;
}

.badge-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

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

/* --------------------------------------------------------------------------
   7. Key Stats Banner
   -------------------------------------------------------------------------- */
.stats-banner {
  background: var(--bg-secondary);
  border-y: 1px solid var(--card-border);
  padding: 2.5rem 0;
  margin-top: -2rem;
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-card {
  padding: 1rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

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

/* --------------------------------------------------------------------------
   8. About & Technical Matrix
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

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

.about-text {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.highlights-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.highlight-icon {
  color: var(--accent-cyan);
  font-size: 1.2rem;
  margin-top: 2px;
}

/* Skill Tabs & Filter System */
.skills-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-full);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--gradient-primary);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

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

.skill-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.skill-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.skill-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.skill-level-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 1s ease-out;
}

/* --------------------------------------------------------------------------
   9. Experience & Education Timeline
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: var(--card-border);
}

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

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 5px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
  z-index: 2;
}

.timeline-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
}

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

.timeline-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.timeline-role {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
}

.timeline-badge {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.timeline-company {
  font-size: 1.05rem;
  color: var(--accent-blue);
  font-weight: 600;
  margin-bottom: 1rem;
}

.timeline-details {
  list-style-type: disc;
  padding-left: 1.2rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* --------------------------------------------------------------------------
   10. Featured Projects Grid
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.project-card:hover {
  border-color: var(--card-border-hover);
  transform: translateY(-8px);
  box-shadow: var(--card-shadow), var(--glow-shadow);
}

.project-header {
  padding: 1.8rem 1.8rem 1rem 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-glow);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.project-body {
  padding: 0 1.8rem 1.5rem 1.8rem;
  flex-grow: 1;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.2rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-footer {
  padding: 1.2rem 1.8rem;
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   11. Certifications & Hackathons Grid
   -------------------------------------------------------------------------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition-fast);
}

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

.cert-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.cert-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.3rem;
}

.cert-issuer {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

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

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

.contact-info-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

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

.info-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Contact Form */
.contact-form {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}

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

/* --------------------------------------------------------------------------
   13. Footer & Toast Notifications
   -------------------------------------------------------------------------- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--card-border);
  background: var(--bg-primary);
  text-align: center;
}

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

.back-to-top {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  background: var(--accent-blue);
  color: #ffffff;
  transform: translateY(-4px);
}

/* Toast System */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(13, 19, 34, 0.95);
  border: 1px solid var(--accent-emerald);
  color: var(--text-main);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
}

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

/* Modal Popup System */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(7, 10, 19, 0.8);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

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

.modal-card {
  width: 90%;
  max-width: 650px;
  background: var(--bg-secondary);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   14. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-bio {
    margin: 0 auto 2rem auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .social-links {
    justify-content: center;
  }
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    right: -100%;
    width: 250px;
    height: calc(100vh - var(--nav-height));
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 2rem;
    align-items: flex-start;
    border-left: 1px solid var(--card-border);
    transition: right var(--transition-normal);
  }
  .nav-links.active {
    right: 0;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .floating-badge {
    display: none;
  }
}