/* ===== GOOGLE FONTS ===== */
/* Space Grotesk for Headings (Modern, Bold) */
/* Inter for Body Text (Highly Readable, Professional) */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap");

/* ===== CSS VARIABLES - DARK MODE PROFESSIONAL PALETTE ===== */
:root {
  --header-height: 4rem;
  --font-semi: 600;
  --font-bold: 700;

  /* ===== Professional Dark Mode Color Palette (Hex Codes) ===== */
  /* Primary Colors - Deep Navy & Electric Blue */
  --primary-dark: #0a0e27;
  /* Deep Navy - Main background */
  --primary-darker: #050814;
  /* Almost Black - Header/Footer */
  --primary-accent: #1a1f3a;
  /* Lighter Navy - Cards/Sections */

  /* Accent Colors - Electric Blue & Cyan */
  --accent-primary: #3b82f6;
  /* Electric Blue - Primary accent */
  --accent-secondary: #06b6d4;
  /* Cyan - Secondary accent */
  --accent-hover: #2563eb;
  /* Darker Blue - Hover states */
  --accent-glow: rgba(59, 130, 246, 0.5);
  /* Blue glow effect */

  /* Text Colors - High Contrast */
  --text-primary: #f8fafc;
  /* Almost White - Primary text */
  --text-secondary: #cbd5e1;
  /* Light Gray - Secondary text */
  --text-muted: #94a3b8;
  /* Medium Gray - Muted text */
  --text-accent: #60a5fa;
  /* Light Blue - Accent text */

  /* Status Colors */
  --success: #10b981;
  /* Green - Success states */
  --warning: #f59e0b;
  /* Amber - Warning */
  --error: #ef4444;
  /* Red - Error */

  /* Border & Divider */
  --border-color: #1e293b;
  /* Dark border */
  --border-light: #334155;
  /* Light border */

  /* Shadows - Premium Depth */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* ===== Typography ===== */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --big-font-size: 3.5rem;
  /* Hero title */
  --h1-font-size: 2.5rem;
  /* Section titles */
  --h2-font-size: 1.75rem;
  /* Subsection titles */
  --h3-font-size: 1.25rem;
  /* Card titles */
  --normal-font-size: 1rem;
  /* Body text */
  --small-font-size: 0.875rem;
  /* Small text */
  --smaller-font-size: 0.75rem;
  /* Extra small */

  /* ===== Spacing (Premium) ===== */
  --mb-1: 0.5rem;
  --mb-2: 1rem;
  --mb-3: 1.5rem;
  --mb-4: 2rem;
  --mb-5: 2.5rem;
  --mb-6: 3rem;
  --mb-8: 4rem;

  /* ===== Z-index ===== */
  --z-back: -10;
  --z-normal: 1;
  --z-fixed: 100;
  --z-modal: 1000;

  /* ===== Transitions ===== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* ===== Glassmorphism ===== */
  --glass-bg: rgba(26, 31, 58, 0.4);
  --glass-bg-light: rgba(26, 31, 58, 0.3);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --backdrop-blur: blur(16px);
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media screen and (min-width: 968px) {
  :root {
    --big-font-size: 4.5rem;
    --h1-font-size: 3rem;
    --h2-font-size: 2rem;
    --normal-font-size: 1.0625rem;
  }
}

/* ===== BASE STYLES ===== */
*,
::before,
::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: var(--header-height) 0 0 0;
  font-family: var(--font-body);
  font-size: var(--normal-font-size);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-secondary);
  background-color: var(--primary-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0;
}

h1 {
  font-size: var(--h1-font-size);
}

h2 {
  font-size: var(--h2-font-size);
}

h3 {
  font-size: var(--h3-font-size);
}

p {
  margin: 0;
  line-height: 1.8;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

a:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

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

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

/* ===== UTILITY CLASSES ===== */
.section {
  padding: 6rem 0 4rem;
}

.section-title {
  position: relative;
  font-size: var(--h1-font-size);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--mb-6);
  letter-spacing: -0.02em;
}

.section-title::after {
  content: "";
  position: absolute;
  width: 80px;
  height: 4px;
  left: 50%;
  transform: translateX(-50%);
  top: calc(100% + 1rem);
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 2px;
}

.bd-grid {
  max-width: 1200px;
  display: grid;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ===== HEADER (Glassmorphism) ===== */
.l-header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  background: rgba(5, 8, 20, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--glass-border);
}

/* ===== NAVIGATION ===== */
.nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: var(--font-semi);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  transition: color var(--transition-base);
}

.nav__logo:hover {
  color: var(--accent-primary);
}

.nav__menu {
  transition: right var(--transition-base);
}

.nav__list {
  display: flex;
  gap: 2rem;
}

.nav__link {
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.5rem 0;
  transition: color var(--transition-base);
}

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

.nav__link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  left: 0;
  bottom: 0;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  transition: width var(--transition-base);
}

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

/* Login Button Style in Nav */
.nav__link--btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  transition: all var(--transition-base);
}

.nav__link--btn:hover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

.nav__link--btn::after {
  display: none;
  /* Remove underline effect for button */
}

.nav__toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: transform var(--transition-base);
  z-index: calc(var(--z-fixed) + 1);
  background: transparent;
  border: none;
  padding: 0.5rem;
}

.nav__toggle:hover {
  transform: scale(1.1);
  color: var(--accent-primary);
}

/* Mobile Menu Overlay */
.nav__overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(5, 8, 20, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: calc(var(--z-fixed) - 1);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nav__overlay.show {
  display: block;
  opacity: 1;
}

/* ===== HOME SECTION ===== */
.home {
  position: relative;
  padding: 8rem 0 6rem;
  min-height: calc(100vh - var(--header-height));
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.home__data {
  z-index: var(--z-normal);
}

.home__greeting {
  font-size: var(--normal-font-size);
  color: var(--text-accent);
  font-weight: 500;
  margin-bottom: 0.5rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.home__title {
  font-size: var(--big-font-size);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--mb-3);
  letter-spacing: -0.03em;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.home__title-color {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.home__title-subtitle {
  font-size: 0.6em;
  font-weight: 500;
  color: var(--text-secondary);
  display: block;
  margin-top: 0.5rem;
}

.home__description {
  font-size: var(--normal-font-size);
  color: var(--text-muted);
  margin-bottom: var(--mb-5);
  max-width: 600px;
  line-height: 1.8;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.4s forwards;
}

.home__buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

.home__social {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: fixed;
  left: 2rem;
  bottom: 2rem;
  z-index: var(--z-normal);
}

.home__social-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--text-secondary);
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: all var(--transition-base);
}

.home__social-icon:hover {
  color: var(--text-primary);
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.home__img {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  animation: fadeIn 1s ease 0.8s forwards;
}

.home__blob-container {
  position: relative;
  width: 125px;
  height: 125px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-15px) rotate(1deg);
  }
  66% {
    transform: translateY(-25px) rotate(-1deg);
  }
}

.home__blob-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(6, 182, 212, 0.15));
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  filter: blur(15px);
  opacity: 0.6;
  animation: blob-morph 8s ease-in-out infinite;
  z-index: 0;
}

@keyframes blob-morph {
  0%, 100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    transform: scale(1.1);
  }
  25% {
    border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
    transform: scale(1.15);
  }
  50% {
    border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
    transform: scale(1.2);
  }
  75% {
    border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
    transform: scale(1.15);
  }
}

.home__blob-img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit:contain;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  filter: brightness(1.08) contrast(1.12) saturate(1.05);
  transition: all var(--transition-slow);
  z-index: 1;
  box-shadow: 
    0 0 0 4px rgba(59, 130, 246, 0.1),
    0 0 0 8px rgba(6, 182, 212, 0.05),
    0 10px 30px rgba(0, 0, 0, 0.3),
    inset 0 0 20px rgba(255, 255, 255, 0.1);
  animation: blob-morph-img 8s ease-in-out infinite;
}

@keyframes blob-morph-img {
  0%, 100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  25% {
    border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
  }
  50% {
    border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
  }
  75% {
    border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
  }
}

.home__blob-container:hover {
  transform: translateY(-10px) scale(1.05);
}

.home__blob-container:hover .home__blob-bg {
  opacity: 0.8;
  filter: blur(12px);
}

.home__blob-container:hover .home__blob-img {
  filter: brightness(1.12) contrast(1.18) saturate(1.08);
  box-shadow: 
    0 0 0 6px rgba(59, 130, 246, 0.15),
    0 0 0 12px rgba(6, 182, 212, 0.08),
    0 15px 45px rgba(59, 130, 246, 0.4),
    inset 0 0 30px rgba(255, 255, 255, 0.15);
}

/* Tablet - Medium size */
@media screen and (min-width: 576px) {
  .home__blob-container {
    width: 175px;
    height: 175px;
  }
}

/* Desktop - 2x larger */
@media screen and (min-width: 768px) {
  .home__blob-container {
    width: 300px;
    height: 300px;
  }

  .home__blob-img {
    box-shadow: 
      0 0 0 6px rgba(59, 130, 246, 0.1),
      0 0 0 12px rgba(6, 182, 212, 0.05),
      0 15px 45px rgba(0, 0, 0, 0.3),
      inset 0 0 30px rgba(255, 255, 255, 0.1);
  }

  .home__blob-container:hover .home__blob-img {
    box-shadow: 
      0 0 0 8px rgba(59, 130, 246, 0.15),
      0 0 0 16px rgba(6, 182, 212, 0.08),
      0 20px 60px rgba(59, 130, 246, 0.4),
      inset 0 0 40px rgba(255, 255, 255, 0.15);
  }
}

/* Large Desktop - even more impressive */
@media screen and (min-width: 1200px) {
  .home__blob-container {
    width: 350px;
    height: 350px;
  }
}

/* ===== BUTTONS ===== */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-weight: var(--font-semi);
  font-size: var(--normal-font-size);
  border-radius: 12px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-align: center;
}

.button--primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.button--primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.button--primary:hover::before {
  left: 100%;
}

.button--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.button--primary:active {
  transform: translateY(0);
}

.button--secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-light);
}

.button--secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

/* ===== RIPPLE EFFECT ===== */
.button {
  position: relative;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  transform: scale(0);
  animation: ripple-animation 0.6s ease-out;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ===== ABOUT SECTION ===== */
.about {
  position: relative;
  overflow: hidden;
  background: #0a0e17;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
}

.about__container {
  grid-template-columns: 1fr !important;
  text-align: center;
  gap: 1.5rem;
}

/* Content Side (Left) */
.about__content {
  max-width: 1200px !important;
  width: 95%;
  margin: 0 auto;
}

.about__header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center !important;
  text-align: center !important;
}

.about__title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.about__badge {
  margin: 0.5rem;
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50px;
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  width: fit-content;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

.about__bio {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about__text {
  color: var(--text-secondary);
  font-size: var(--normal-font-size);
  margin: 0;
  max-width: 100% !important;
  padding: 0 1rem;
  line-height: 1.6;
}

/* Technology Highlights */
.tech-highlight {
  color: var(--accent-primary);
  font-weight: 700;
  background: rgba(59, 130, 246, 0.1);
  padding: 0.1rem 0.5rem;
  border-radius: 10px;
  display: inline-block;
  position: relative;
  transition: all var(--transition-base);
}

.tech-highlight:hover {
  color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
}

/* Statistics Cards */
.about__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: 16px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  transition: left 0.5s;
}

.stat-card:hover::before {
  left: 100%;
}

.stat-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-primary);
  box-shadow: 0 0 25px rgba(59, 130, 246, 0.3), var(--shadow-lg);
}

.stat-card__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 12px;
  font-size: 1.25rem;
  color: var(--text-primary);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
}

.stat-card:hover .stat-card__icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.6);
}

.stat-card__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  position: relative;
  z-index: 1;
}

.stat-card__number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.stat-card__label {
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card__sublabel {
  font-size: var(--smaller-font-size);
  color: var(--text-muted);
  font-weight: 500;
}



/* Background Pattern (Code Snippets) */
.about__bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  opacity: 0.03;
  z-index: 0;
  pointer-events: none;
}

.code-snippet {
  position: absolute;
  top: 10%;
  right: 5%;
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text-primary);
  white-space: pre;
  transform: rotate(-5deg);
}

.code-keyword {
  color: #c792ea;
}

.code-variable {
  color: #82aaff;
}

.code-function {
  color: #ffcb6b;
}

.code-string {
  color: #c3e88d;
}

.code-line {
  display: block;
}

/* Responsive Design */
@media screen and (min-width: 768px) {
  .home__data {
    padding: 1rem;
  }

  .about__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about__content {
    max-width: 900px;
    margin: 0 auto;
  }

  .about__title {
    font-size: 3rem;
  }

  .about__text {
    font-size: 1.0625rem;
  }

  .about__stats {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 2rem !important;
    margin-top: 3rem !important;
    width: 100%;
  }

  .stat-card {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    height: 100%;
  }

  .stat-card__icon {
    margin-bottom: 1rem;
  }

  .about__img-wrapper {
    margin: 0;
  }
}

@media screen and (min-width: 968px) {
  .about__title {
    font-size: 3.5rem;
  }

  .about__img-wrapper {
    max-width: 450px;
  }

  .about__img-container {
    width: 320px;
    height: 320px;
  }

  .about__img-blob {
    width: 380px;
    height: 380px;
  }

  .about__img-glow {
    width: 340px;
    height: 340px;
  }
}

/* ===== EXPERTISE SECTION ===== */
.expertise {
  position: relative;
  overflow: hidden;
}

.expertise::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 25% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 75% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.expertise__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

/* Expertise Cards */
.expertise-card {
  display: flex;
  flex-direction: column;
  padding: 2.5rem;
  border-radius: 24px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.expertise-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  z-index: 0;
}

.expertise-card--fullstack::before {
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
}

.expertise-card--data::before {
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
}

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

.expertise-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.3), var(--shadow-xl);
}

.expertise-card--data:hover {
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.3), var(--shadow-xl);
  border-color: var(--accent-secondary);
}

/* Card Header */
.expertise-card__header {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.expertise-card__icon-wrapper {
  flex-shrink: 0;
  display: flex;
  gap: 0.75rem;
  position: relative;
}

.expertise-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  border-radius: 16px;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.expertise-card__icon--java {
  background: linear-gradient(135deg, #ED8B00, #FF6F00);
  color: #ffffff;
}

.expertise-card__icon--react {
  background: linear-gradient(135deg, #61DAFB, #00D8FF);
  color: #282C34;
  box-shadow: 0 0 20px rgba(97, 218, 251, 0.4);
}

.expertise-card__icon--python {
  background: linear-gradient(135deg, #3776AB, #FFD43B);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(55, 118, 171, 0.4);
}

.expertise-card__icon--ai {
  background: linear-gradient(135deg, #06B6D4, #3B82F6);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

.expertise-card:hover .expertise-card__icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

.expertise-card:hover .expertise-card__icon--react {
  box-shadow: 0 0 30px rgba(97, 218, 251, 0.6);
}

.expertise-card:hover .expertise-card__icon--python {
  box-shadow: 0 0 30px rgba(55, 118, 171, 0.6);
}

.expertise-card:hover .expertise-card__icon--ai {
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.6);
}

.expertise-card__title-wrapper {
  flex: 1;
}

.expertise-card__title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}

.expertise-card__subtitle {
  font-size: var(--normal-font-size);
  font-weight: var(--font-semi);
  color: var(--text-accent);
  margin: 0 0 0.75rem 0;
  position: relative;
  z-index: 1;
}

.expertise-card__tag {
  display: inline-block;
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  color: var(--accent-secondary);
  padding: 0.375rem 0.875rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}

.expertise-card--fullstack .expertise-card__tag {
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.2);
}

/* Card Content */
.expertise-card__content {
  position: relative;
  z-index: 1;
}

.expertise-card__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.expertise-card__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.expertise-card__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.expertise-card--fullstack .expertise-card__item::before {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

.expertise-card--data .expertise-card__item::before {
  background: linear-gradient(135deg, var(--accent-secondary), #8B5CF6);
}

.expertise-card__item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.expertise-card__item:hover::before {
  opacity: 1;
}

.expertise-card__item-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 10px;
  transition: all var(--transition-base);
}

.expertise-card--data .expertise-card__item-icon {
  color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.2);
}

.expertise-card__item:hover .expertise-card__item-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.expertise-card--data .expertise-card__item:hover .expertise-card__item-icon {
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

.expertise-card__item-content {
  flex: 1;
  font-size: var(--small-font-size);
  color: var(--text-secondary);
  line-height: 1.7;
}

.expertise-card__item-content strong {
  color: var(--text-primary);
  font-weight: var(--font-semi);
  display: block;
  margin-bottom: 0.25rem;
}

/* Responsive Design */
@media screen and (min-width: 768px) {
  .expertise__container {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .expertise-card {
    padding: 3rem;
  }

  .expertise-card__title {
    font-size: 2rem;
  }

  .expertise-card__item-content {
    font-size: var(--normal-font-size);
  }
}

@media screen and (min-width: 968px) {
  .expertise__container {
    gap: 3rem;
  }

  .expertise-card {
    padding: 3.5rem;
  }
}

@media screen and (max-width: 767px) {
  .expertise-card {
    padding: 2rem;
  }

  .expertise-card__header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .expertise-card__title-wrapper {
    text-align: center;
  }

  .expertise-card__icon-wrapper {
    justify-content: center;
  }

  .expertise-card__item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .expertise-card__item-content {
    text-align: center;
  }
}

/* ===== CERTIFICATES SECTION ===== */
.certificates__container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.certificate-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  border-radius: 16px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.certificate-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
  transition: left 0.5s;
}

.certificate-card:hover::before {
  left: 100%;
}

.certificate-card:hover {
  transform: translateX(8px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.certificate-card__logo {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 12px;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
}

.certificate-card:hover .certificate-card__logo {
  transform: scale(1.1) rotate(5deg);
}

.certificate-card__icon {
  font-size: 2rem;
  color: var(--text-primary);
}

.certificate-card__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
}

.certificate-card__title {
  font-family: var(--font-heading);
  font-size: var(--h3-font-size);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

.certificate-card__institution {
  font-size: var(--normal-font-size);
  font-weight: var(--font-semi);
  color: var(--text-accent);
  margin: 0;
}

.certificate-card__date {
  font-size: var(--small-font-size);
  color: var(--text-muted);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.certificate-card__date i {
  font-size: 0.875rem;
}

.certificate-card__button {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--accent-primary);
  border-radius: 10px;
  color: var(--accent-primary);
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
}

.certificate-card__button:hover {
  background: var(--accent-primary);
  color: var(--text-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-glow);
}

.certificate-card__button i {
  font-size: 0.875rem;
  transition: transform var(--transition-base);
}

.certificate-card__button:hover i {
  transform: translateX(2px);
}

/* ===== PROJECTS SECTION ===== */
.projects__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  width: 100%;
}

.project-card {
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  overflow: hidden;
  transition: all var(--transition-base);
  height: 100%;
  position: relative;
}

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

/* Project Thumbnail */
.project-card__thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--primary-accent);
}

.project-card__thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__thumbnail img {
  transform: scale(1.1);
}

.project-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(6, 182, 212, 0.2));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 1;
}

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

/* Ribbon for Active Project */
.ribbon--project {
  position: absolute;
  right: -5px;
  top: 10px;
  z-index: 2;
  overflow: hidden;
  width: 90px;
  height: 90px;
}

.ribbon--project span {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  text-align: center;
  line-height: 20px;
  transform: rotate(45deg);
  width: 120px;
  display: block;
  background: linear-gradient(135deg, var(--success), #059669);
  box-shadow: var(--shadow-md);
  position: absolute;
  top: 20px;
  right: -30px;
  padding: 2px 0;
}

/* Project Content */
.project-card__content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: var(--h3-font-size);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

.project-card__description {
  font-size: var(--small-font-size);
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Tech Stack Badges */
.project-card__tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  border-radius: 8px;
  font-size: var(--smaller-font-size);
  font-weight: var(--font-semi);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
}

/* Tech Badge Color Variants */
.tech-badge--react {
  background: rgba(97, 219, 251, 0.1);
  border: 1px solid rgba(97, 219, 251, 0.3);
  color: #61dafb;
}

.tech-badge--node {
  background: rgba(104, 160, 99, 0.1);
  border: 1px solid rgba(104, 160, 99, 0.3);
  color: #68a063;
}

.tech-badge--mongodb {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.tech-badge--python {
  background: rgba(53, 114, 165, 0.1);
  border: 1px solid rgba(53, 114, 165, 0.3);
  color: #3572a5;
}

.tech-badge--django {
  background: rgba(9, 54, 36, 0.1);
  border: 1px solid rgba(9, 54, 36, 0.3);
  color: #093624;
}

.tech-badge--postgresql {
  background: rgba(51, 103, 145, 0.1);
  border: 1px solid rgba(51, 103, 145, 0.3);
  color: #336791;
}

.tech-badge--html {
  background: rgba(227, 79, 38, 0.1);
  border: 1px solid rgba(227, 79, 38, 0.3);
  color: #e34f26;
}

.tech-badge--css {
  background: rgba(21, 114, 182, 0.1);
  border: 1px solid rgba(21, 114, 182, 0.3);
  color: #1572b6;
}

.tech-badge--js {
  background: rgba(247, 223, 30, 0.1);
  border: 1px solid rgba(247, 223, 30, 0.3);
  color: #f7df1e;
}

.tech-badge--sql {
  background: rgba(204, 102, 51, 0.1);
  border: 1px solid rgba(204, 102, 51, 0.3);
  color: #cc6633;
}

.tech-badge--api {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--accent-primary);
}

.tech-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* Project Actions */
.project-card__actions {
  padding: 1rem 1.5rem;
  display: flex;
  gap: 0.75rem;
  border-top: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.02);
}

.project-card__button {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-radius: 10px;
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.project-card__button--demo {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
}

.project-card__button--demo:hover {
  background: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.project-card__button--github {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

.project-card__button--github:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.project-card__button i {
  font-size: 0.875rem;
  transition: transform var(--transition-base);
}

.project-card__button:hover i {
  transform: scale(1.1);
}

/* ===== CONTACT SECTION ===== */
.contact {
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.contact__subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--normal-font-size);
  margin-bottom: var(--mb-6);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.contact__container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  position: relative;
  z-index: 1;
}

/* Contact Info Cards (Grid Layout) */
.contact__info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.contact__card {
  padding: 2rem;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.contact__card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.contact__card:hover::before {
  opacity: 1;
}

.contact__card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
}

.contact__card-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--mb-3);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 16px;
  font-size: 1.5rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
}

.contact__card:hover .contact__card-icon {
  transform: scale(1.1) rotate(5deg);
}

.contact__card-title {
  font-family: var(--font-heading);
  font-size: var(--h3-font-size);
  color: var(--text-primary);
  margin-bottom: var(--mb-2);
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.contact__card-info {
  color: var(--text-secondary);
  margin-bottom: var(--mb-3);
  font-size: var(--normal-font-size);
  position: relative;
  z-index: 1;
}

.contact__card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary);
  font-weight: var(--font-semi);
  font-size: var(--small-font-size);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
}

.contact__card-link:hover {
  color: var(--accent-secondary);
  gap: 0.75rem;
}

.contact__card-link i {
  transition: transform var(--transition-base);
}

.contact__card-link:hover i {
  transform: translateX(4px);
}

/* Contact Form (Glassmorphism) */
.contact__form {
  padding: 2.5rem;
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
}

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

.contact__form-group--full {
  grid-column: 1 / -1;
}

.contact__form-label {
  font-family: var(--font-heading);
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.contact__form-label .required {
  color: var(--error);
  margin-left: 0.25rem;
}

.contact__form-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.contact__form-icon {
  position: absolute;
  left: 1.25rem;
  color: var(--text-muted);
  font-size: 1rem;
  transition: color var(--transition-base);
  pointer-events: none;
  z-index: 1;
}

.contact__form-icon--textarea {
  top: 1.25rem;
  align-self: flex-start;
}

.contact__form-input,
.contact__form-textarea {
  width: 100%;
  padding: 1rem 1rem 1rem 3.25rem;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--normal-font-size);
  transition: all var(--transition-base);
  outline: none;
}

.contact__form-textarea {
  padding-top: 1.25rem;
  min-height: 150px;
  resize: vertical;
  font-family: inherit;
}

.contact__form-input::placeholder,
.contact__form-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.contact__form-input:focus,
.contact__form-textarea:focus {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), var(--shadow-md);
}

.contact__form-input:focus+.contact__form-icon,
.contact__form-textarea:focus~.contact__form-icon {
  color: var(--accent-primary);
}

.contact__form-input:invalid:not(:placeholder-shown) {
  border-color: var(--error);
}

.contact__form-input:valid:not(:placeholder-shown) {
  border-color: var(--success);
}

.contact__form-error {
  font-size: var(--smaller-font-size);
  color: var(--error);
  min-height: 1.25rem;
  margin-top: 0.25rem;
  opacity: 0;
  transform: translateY(-5px);
  transition: all var(--transition-base);
}

.contact__form-error.show {
  opacity: 1;
  transform: translateY(0);
}

.contact__form-message {
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: var(--small-font-size);
  font-weight: var(--font-semi);
  text-align: center;
  margin-top: 0.5rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  grid-column: 1 / -1;
}

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

.contact__form-message.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.contact__form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

.button--submit {
  width: 100%;
  margin-top: 1rem;
  position: relative;
  overflow: hidden;
}

.button--submit .button__text {
  position: relative;
  z-index: 1;
}

.button--submit .button__icon {
  position: relative;
  z-index: 1;
  margin-left: 0.5rem;
  transition: transform var(--transition-base);
}

.button--submit:hover .button__icon {
  transform: translateX(4px);
}

.button--submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.button--submit.loading .button__text::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  margin-left: 0.5rem;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== FOOTER ===== */
.main-footer {
  margin-top: 8rem;
  background-color: var(--primary-darker);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-contact h3,
.footer-social h3 {
  font-family: var(--font-heading);
  font-size: var(--h3-font-size);
  color: var(--text-primary);
  margin-bottom: var(--mb-3);
}

.footer-contact address {
  font-style: normal;
}

.footer-contact p {
  color: var(--text-secondary);
  margin-bottom: var(--mb-2);
  line-height: 1.8;
}

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

.footer-contact a {
  color: var(--text-accent);
  transition: color var(--transition-base);
}

.footer-contact a:hover {
  color: var(--accent-primary);
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-accent);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: all var(--transition-base);
}

.social-icons a:hover {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: var(--small-font-size);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* Scroll reveal animation trigger */
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE DESIGN ===== */
@media screen and (max-width: 767px) {
  .home__social {
    position: static;
    flex-direction: row;
    justify-content: center;
    margin-top: 2rem;
  }

  /* Mobile Navigation Menu */
  .nav__menu {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - var(--header-height));
    padding: 2rem;
    background: rgba(5, 8, 20, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-left: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-fixed);
    transition: right var(--transition-base);
    overflow-y: auto;
  }

  .nav__menu.show {
    right: 0;
  }

  .nav__list {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    justify-content: flex-start;
    height: 100%;
    padding-top: 2rem;
  }

  .nav__link {
    width: 100%;
    padding: 1rem 0;
    font-size: 1rem;
    text-align: center;
  }

  .nav__toggle {
    display: block;
  }

  /* Mobile Menu Overlay */
  .nav__overlay {
    display: block;
  }

  .home {
    padding: 4rem 0 3rem;
    text-align: center;
  }

  .home__title {
    font-size: 2.5rem;
  }

  .home__buttons {
    justify-content: center;
  }


  .section {
    padding: 4rem 0 3rem;
  }

  /* Mobile Certificate Cards */
  .certificate-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    padding: 1.5rem;
  }

  .certificate-card__logo {
    margin: 0 auto;
  }

  .certificate-card__content {
    align-items: center;
    text-align: center;
    width: 100%;
  }

  .certificate-card__title {
    text-align: center;
  }

  .certificate-card__institution {
    text-align: center;
  }

  .certificate-card__date {
    justify-content: center;
    text-align: center;
  }

  .certificate-card__button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .certificate-card:hover {
    transform: translateY(-4px);
  }
}

/* Desktop Navigation */
@media screen and (min-width: 768px) {
  .nav__toggle {
    display: none !important;
  }

  .nav__menu {
    position: static !important;
    right: auto !important;
    width: auto !important;
    max-width: none !important;
    height: auto !important;
    padding: 0 !important;
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    border: none !important;
    box-shadow: none !important;
    overflow: visible !important;
  }

  .nav__menu.show {
    right: auto !important;
  }

  .nav__list {
    flex-direction: row !important;
    gap: 2rem !important;
    align-items: center !important;
    justify-content: flex-end !important;
    padding-top: 0 !important;
  }

  .nav__link {
    width: auto !important;
    padding: 0.5rem 0 !important;
    text-align: left !important;
  }

  .nav__link--btn {
    padding: 0.5rem 1rem !important;
  }


  .nav__overlay {
    display: none !important;
  }
}

@media screen and (min-width: 576px) {
  .home {
    grid-template-columns: 1.2fr 0.8fr;
    text-align: left;
  }

  .nav__link--btn {
    padding: 0.5rem 1rem !important;
  }

  .home__buttons {
    justify-content: flex-start;
  }

  .about__container {
    grid-template-columns: repeat(2, 1fr);
    align-items: start;
  }

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

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

@media screen and (min-width: 768px) {
  body {
    margin: 0;
  }

  .nav__link--btn {
    padding: 0.5rem 1rem !important;
  }

  .section {
    padding: 6rem 0 4rem;
  }

  .home {
    padding: 10rem 0 6rem;
  }

  .home__img {
    justify-self: flex-end;
  }

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

  .certificate-card {
    flex-direction: row;
    text-align: left;
    align-items: center;
  }

  .certificate-card__content {
    align-items: flex-start;
    text-align: left;
  }

  .certificate-card__title {
    text-align: left;
  }

  .certificate-card__institution {
    text-align: left;
  }

  .certificate-card__date {
    justify-content: flex-start;
    text-align: left;
  }

  .certificate-card__button {
    width: auto;
    justify-content: flex-start;
  }

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

@media screen and (min-width: 968px) {
  .projects__container {
    grid-template-columns: repeat(3, 1fr);
  }

  .certificate-card {
    flex-direction: row;
    text-align: left;
  }

  .certificate-card__button {
    width: auto;
  }

  .home__social {
    left: 2rem;
  }

  .contact__container {
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
  }

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

  .contact__form {
    margin: 0;
  }

  .nav__link--btn {
    padding: 0.5rem 1rem !important;
  }
}


@media screen and (min-width: 1200px) {
  .bd-grid {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.nav__link--btn {
  padding: 0.5rem 1rem !important;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}