/* ============================================================
   0. CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Font */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;

  /* Accent colors - Inspired by Deep Red Silk */
  --accent-1: #c80000;   
  --accent-2: #800000;   
  --accent-3: #1a1a1a;  
  --gradient-primary: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --gradient-accent: linear-gradient(135deg, #444, #111);
  --gradient-full: linear-gradient(135deg, var(--accent-1), var(--accent-2), #440000);

  /* Dark Theme Colors - Luxury Noir */
  --bg-primary: #050505;
  --bg-secondary: #0a0a0a;
  --bg-card: rgba(15, 15, 15, 0.7);
  --bg-card-hover: rgba(25, 25, 25, 0.8);
  --bg-nav: rgba(5, 5, 5, 0.9);
  --bg-loader: #050505;

  --text-primary: #ffffff;
  --text-secondary: #c0c0c0;
  --text-muted: #808080;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(200, 0, 0, 0.4);

  --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 30px rgba(200, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Spacing */
  --section-padding: 120px 8%;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-pill: 50px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  overflow-x: hidden;
}

section[id] {
  scroll-margin-top: 80px;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.7;
  transition: background var(--transition-normal), color var(--transition-normal);
}

::selection {
  background: var(--accent-1);
  color: #fff;
}

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

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

.gradient-text {
  background: var(--gradient-full);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ============================================================
   2. LOADER
   ============================================================ */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg-loader);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 99999;
  transition: opacity 0.6s ease, visibility 0.6s;
}

.loader-content {
  text-align: center;
}

.loader-logo {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 20px;
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
  50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.6); }
}

#loader h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.loader-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.progress-bar {
  width: 260px;
  height: 4px;
  background: var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  margin: 0 auto 12px;
}

.progress {
  width: 0%;
  height: 100%;
  background: var(--gradient-full);
  border-radius: 10px;
  transition: width 0.1s linear;
}

#progress-text {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-1);
  font-weight: 600;
}

/* ============================================================
   2.1 SCROLL PROGRESS BAR
   ============================================================ */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-full);
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* ============================================================
   3. BACKDROP EFFECTS (SILK & PARTICLES)
   ============================================================ */
.silk-backdrop {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: radial-gradient(circle at 10% 20%, rgba(200, 0, 0, 0.05) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(128, 0, 0, 0.08) 0%, transparent 50%),
              #050505;
  overflow: hidden;
}

.silk-fold {
  position: absolute;
  width: 150%;
  height: 150%;
  top: -25%;
  left: -25%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 100px,
    rgba(255, 0, 0, 0.01) 101px,
    rgba(255, 255, 255, 0.01) 102px
  );
  filter: blur(60px);
  transform: rotate(-15deg);
  pointer-events: none;
  animation: drift 20s linear infinite alternate;
}

@keyframes drift {
  from { transform: rotate(-15deg) translate(0, 0); }
  to { transform: rotate(-10deg) translate(-50px, 50px); }
}

#particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  transition: opacity var(--transition-normal);
  opacity: 0.4;
}

/* ============================================================
   4. NAVIGATION
   ============================================================ */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
  height: 72px;
  background: var(--bg-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateZ(0);
  overflow: hidden;
}

@media (max-width: 768px) {
  .navbar {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

.navbar.scrolled {
  box-shadow: var(--shadow-card);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--border-radius-pill);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.nav-link.active {
  color: var(--accent-1);
  background: rgba(200, 0, 0, 0.15);
  box-shadow: inset 0 0 0 1px rgba(200, 0, 0, 0.4),
              0 0 12px rgba(200, 0, 0, 0.15);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}



/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 10;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 4px;
  transition: all var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   5. HERO SECTION
   ============================================================ */
.hero {
  text-align: center;
  padding: 160px 20px 100px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  will-change: transform, opacity;
  transform: translateZ(0);
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 24px;
  letter-spacing: -2px;
  text-transform: uppercase;
}



.hero-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 500px;
}

/* Typewriter cursor */
.typewriter::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--accent-1);
  font-weight: 300;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Buttons */
.buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--border-radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.15);
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-arrow {
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(8px); }
  60% { transform: translateY(4px); }
}

/* ============================================================
   6. SECTION HEADER (shared)
   ============================================================ */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}



.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

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

section {
  padding: var(--section-padding);
  position: relative;
  will-change: auto;
}

@media (max-width: 768px) {
  section {
    will-change: transform, opacity;
  }
}

/* ============================================================
   7. ABOUT SECTION
   ============================================================ */
.about-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.about-image-wrapper {
  position: relative;
  flex-shrink: 0;
}

.about-image-frame {
  position: relative;
  width: 300px;
  height: 300px;
  border-radius: 24px;
  overflow: hidden;
  border: 3px solid var(--border-color);
  transition: border-color var(--transition-normal);
}

.about-image-frame:hover {
  border-color: var(--accent-1);
}

.about-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-image-frame:hover img {
  transform: scale(1.05);
}

.about-image-glow {
  position: absolute;
  inset: -2px;
  background: var(--gradient-primary);
  border-radius: 24px;
  z-index: -1;
  opacity: 0;
  filter: blur(20px);
  transition: opacity var(--transition-normal);
}

.about-image-frame:hover + .about-image-glow,
.about-image-wrapper:hover .about-image-glow {
  opacity: 0.4;
}

.about-experience-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--gradient-primary);
  padding: 14px 20px;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.exp-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
}

.exp-label {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about-text h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-text strong {
  color: var(--accent-1);
}



/* ============================================================
   8. SKILLS SECTION
   ============================================================ */
.skills-categories {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 20px;
}

.skill-category {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(200, 0, 0, 0.4);
  border-radius: var(--border-radius);
  padding: 28px 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-slow);
  overflow: hidden;
  min-width: 200px;
  max-width: 280px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.skill-category::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(200, 0, 0, 0.08);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.skill-category:hover::before {
  opacity: 1;
}

.skill-category:hover {
  transform: translateY(-8px);
  border-color: rgba(200, 0, 0, 0.75);
  box-shadow: 0 8px 30px rgba(200, 0, 0, 0.25);
}

.skill-category h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

.skill-category h3 i {
  color: var(--accent-1);
  font-size: 1.1rem;
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  z-index: 1;
}

.skill-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: var(--border-radius-pill);
  background: var(--bg-card-hover);
  border: 1px solid rgba(200, 0, 0, 0.3);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  z-index: 1;
}

.skill-chip:hover {
  color: #fff;
  border-color: rgba(200, 0, 0, 0.7);
  background: rgba(200, 0, 0, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(200, 0, 0, 0.2);
}

.skill-chip i {
  font-size: 0.9rem;
}

/* ============================================================
   9. PROJECTS SECTION
   ============================================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 20px;
}

.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(200, 0, 0, 0.4);
  border-radius: var(--border-radius);
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
  text-align: center;
  width: 100%;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(200, 0, 0, 0.08);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 1;
  pointer-events: none;
}

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

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(200, 0, 0, 0.75);
  box-shadow: 0 8px 30px rgba(200, 0, 0, 0.25);
}

.project-image {
  position: relative;
  overflow: hidden;
  height: 160px;
}

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

.project-card:hover .project-image img {
  transform: scale(1.08);
}

.project-link-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-1);
  font-size: 1.2rem;
  transition: transform var(--transition-normal);
}

.project-link-icon:hover {
  transform: scale(1.15);
}

.project-info {
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.project-info h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-info p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.5;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.project-tech span {
  padding: 3px 10px;
  border-radius: var(--border-radius-pill);
  background: var(--bg-card-hover);
  border: 1px solid rgba(200, 0, 0, 0.3);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: var(--border-radius-pill);
  background: var(--bg-card-hover);
  border: 1px solid rgba(200, 0, 0, 0.35);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-1);
  transition: all var(--transition-normal);
  margin-top: auto;
}

.project-link:hover {
  background: rgba(200, 0, 0, 0.15);
  color: #fff;
  border-color: rgba(200, 0, 0, 0.7);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(200, 0, 0, 0.3);
}

/* ============================================================
   10. CERTIFICATIONS SECTION
   ============================================================ */
.cert-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 20px;
}

.cert-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(200, 0, 0, 0.4);
  border-radius: var(--border-radius);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-width: 200px;
  max-width: 280px;
  flex: 1;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-slow);
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(200, 0, 0, 0.08);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.cert-card:hover::before {
  opacity: 1;
}

.cert-card:hover {
  transform: translateY(-8px);
  border-color: rgba(200, 0, 0, 0.75);
  box-shadow: 0 8px 30px rgba(200, 0, 0, 0.25);
}

.cert-icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 10px;
  z-index: 1;
  transition: transform var(--transition-normal);
}

.cert-card:hover .cert-icon {
  transform: scale(1.12);
}

.cert-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.cert-info {
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.cert-info h3 {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 0;
}

.cert-issuer {
  font-size: 0.75rem;
  color: var(--accent-1);
  font-weight: 600;
  margin-bottom: 0;
}

.cert-date {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.cert-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: var(--border-radius-pill);
  background: var(--bg-card-hover);
  border: 1px solid rgba(200, 0, 0, 0.35);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  z-index: 1;
}

.cert-link:hover {
  background: rgba(200, 0, 0, 0.15);
  color: #fff;
  border-color: rgba(200, 0, 0, 0.7);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(200, 0, 0, 0.3);
}

/* ============================================================
   11. CONTACT SECTION
   ============================================================ */
.contact-description {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 50px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: 20px;
}

.icon-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 30px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  min-width: 150px;
  backdrop-filter: blur(10px);
  transition: all var(--transition-slow);
  overflow: hidden;
}

.icon-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.icon-card:hover .icon-bg {
  opacity: 0.08;
}

.linkedin-bg { background: #0077b5; }
.email-bg { background: #ea4335; }

.icon-card .icon {
  font-size: 2.4rem;
  transition: transform var(--transition-normal);
  z-index: 1;
}

.icon-card span {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  z-index: 1;
}

.icon-card:hover {
  transform: translateY(-8px);
}

.icon-card:hover .icon {
  transform: scale(1.15);
}

/* Brand colors */
#social-linkedin .icon { color: #0077b5; }
#social-email .icon { color: #ea4335; }

#social-linkedin:hover { border-color: #0077b5; box-shadow: 0 8px 30px rgba(0, 119, 181, 0.2); }
#social-email:hover { border-color: #ea4335; box-shadow: 0 8px 30px rgba(234, 67, 53, 0.15); }

/* ============================================================
   12. FOOTER
   ============================================================ */
footer {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  transition: background var(--transition-normal);
}

.footer-logo {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 16px;
}

.footer-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================
   13. BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--gradient-primary);
  border: none;
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(200, 0, 0, 0.4);
  z-index: 999;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(200, 0, 0, 0.5);
}

/* ============================================================
   14. RESPONSIVE – TABLETS (max-width: 992px)
   ============================================================ */
@media (max-width: 992px) {
  :root {
    --section-padding: 80px 6%;
  }

  .about-container {
    flex-direction: column;
    text-align: center;
    gap: 50px;
  }

  .about-text h3 {
    text-align: center;
  }

  .about-stats {
    justify-content: center;
  }

  .skills-categories {
    grid-template-columns: 1fr;
  }

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

/* ============================================================
   15. RESPONSIVE – MOBILE (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --section-padding: 70px 5%;
  }

  .navbar {
    flex-wrap: wrap;
    height: 72px;
    transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    align-content: flex-start;
  }

  .navbar.active {
    height: 400px;
  }

  .logo, .nav-actions {
    height: 72px;
    display: flex;
    align-items: center;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    gap: 15px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    order: 3;
  }

  .nav-links.active {
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: 1.15rem;
    padding: 12px 30px;
  }

  .hero {
    padding: 140px 20px 80px;
  }

  .hero h1 {
    font-size: clamp(2rem, 9vw, 2.8rem);
    margin-bottom: 15px;
  }

  .hero-scroll-indicator {
    display: none;
  }

  .about-image-frame {
    width: 240px;
    height: 240px;
  }

  .about-experience-badge {
    bottom: -15px;
    right: -10px;
    padding: 10px 16px;
  }

  .exp-number {
    font-size: 1.2rem;
  }




  .social-icons {
    gap: 16px;
  }

  .icon-card {
    padding: 24px 28px;
    min-width: 130px;
  }

  .back-to-top {
    bottom: 25px;
    right: 20px;
    width: 42px;
    height: 42px;
    z-index: 1001;
  }
}

/* ============================================================
   16. RESPONSIVE – SMALL MOBILE (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {
  .hero-badge {
    font-size: 0.78rem;
    padding: 6px 16px;
  }

  .buttons {
    flex-direction: column;
    width: 100%;
    max-width: 280px;
  }

  .btn {
    justify-content: center;
    width: 100%;
  }

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

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

  .social-icons {
    flex-direction: column;
    align-items: center;
  }

  .icon-card {
    width: 100%;
    max-width: 260px;
  }
}

/* ============================================================
   17. ANIMATIONS & UTILITIES
   ============================================================ */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}



/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}