/* =====================================================
   ROOT COLORS & THEME VARIABLES
   ===================================================== */

:root {
  /* Light theme colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f4f8;
  --text-primary: #2c3e50;
  --text-secondary: #666666;
  --text-muted: #999999;
  --border-color: #e0e0e0;
  --accent-primary: #3498db;
  --accent-secondary: #dcf2f8;
  --shadow-light: rgba(0, 0, 0, 0.05);
  --shadow-medium: rgba(0, 0, 0, 0.1);

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --transition-fast: 0.2s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.6s ease-out;
  
  --radius: 0.5rem;
  --radius-lg: 1rem;
}

/* Dark theme */
html[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d3748;
  --bg-tertiary: #1e293b;
  --text-primary: #f7fafc;
  --text-secondary: #cbd5e0;
  --text-muted: #a0aec0;
  --border-color: #3f3f3f;
  --accent-primary: #63b3ed;
  --accent-secondary: #2c5282;
  --shadow-light: rgba(0, 0, 0, 0.2);
  --shadow-medium: rgba(0, 0, 0, 0.4);
}

/* =====================================================
   RESET & BASE STYLES
   ===================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  word-wrap: break-word;
}

/* =====================================================
   UTILITIES
   ===================================================== */

.container-custom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container-custom {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container-custom {
    padding: 0 2rem;
  }
}

.hidden-mobile {
  display: none;
}

@media (min-width: 640px) {
  .hidden-mobile {
    display: inline;
  }
}

/* =====================================================
   NAVIGATION
   ===================================================== */

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background-color: transparent;
  transition: all var(--transition-normal);
  padding: 1rem 0;
}

.navbar.sticky {
  background-color: var(--bg-primary);
  backdrop-filter: blur(4px);
  box-shadow: 0 1px 3px var(--shadow-light);
  padding: 0.5rem 0;
}

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

.nav-logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition-normal);
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

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

.nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-normal);
  position: relative;
}

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

/* =====================================================
   THEME TOGGLE BUTTON
   ===================================================== */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background-color: var(--bg-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-primary);
  transition: all var(--transition-normal);
  padding: 8px;
  position: relative;
}

.theme-toggle:hover {
  background-color: var(--accent-secondary);
  color: var(--accent-primary);
}

.sun-icon,
.moon-icon {
  width: 24px;
  height: 24px;
  position: absolute;
  opacity: 1;
  transition: all var(--transition-normal);
  transform: scale(1) rotate(0deg);
}

.moon-icon {
  opacity: 0;
  transform: scale(0.5) rotate(-180deg);
}

html[data-theme="dark"] .sun-icon {
  opacity: 0;
  transform: scale(0.5) rotate(-180deg);
}

html[data-theme="dark"] .moon-icon {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

/* =====================================================
   HERO SECTION
   ===================================================== */

.hero {
  position: relative;
  padding: 8rem 0 4rem;
  overflow: hidden;
  background: linear-gradient(135deg, var(--accent-secondary) 0%, rgba(0, 188, 212, 0.02) 100%);
}

@media (min-width: 640px) {
  .hero {
    padding: 10rem 0 6rem;
  }
}

.hero-bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
}

.hero-blob-1 {
  width: 256px;
  height: 256px;
  background-color: rgba(52, 152, 219, 0.15);
  top: 80px;
  right: 40px;
  opacity: 0.4;
}

.hero-blob-2 {
  width: 384px;
  height: 384px;
  background-color: rgba(52, 152, 219, 0.1);
  bottom: 0;
  left: 40px;
  opacity: 0.3;
  animation: parallax-blob 15s ease-in-out infinite;
}

html[data-theme="dark"] .hero-blob-1 {
  background-color: rgba(99, 179, 237, 0.15);
}

html[data-theme="dark"] .hero-blob-2 {
  background-color: rgba(99, 179, 237, 0.1);
}

@keyframes parallax-blob {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.hero-content {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto;
}

.hero-photo {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
}

@media (min-width: 640px) {
  .hero-photo {
    margin-bottom: 2.5rem;
  }
}

.profile-img {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-primary);
  box-shadow: 0 10px 25px var(--shadow-medium);
  opacity: 0.15;
}

@media (min-width: 640px) {
  .profile-img {
    width: 112px;
    height: 112px;
  }
} 

.hero-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

.hero-tagline {
  font-size: 1.125rem;
  color: var(--accent-primary);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .hero-tagline {
    font-size: 1.25rem;
    margin-bottom: 2rem;
  }
}

.hero-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

@media (min-width: 640px) {
  .hero-bio {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
  }
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .hero-cta {
    flex-direction: row;
    gap: 1.5rem;
  }
}

.scroll-indicator {
  margin-top: 3rem;
  display: flex;
  justify-content: center;
}

@media (min-width: 640px) {
  .scroll-indicator {
    margin-top: 4rem;
  }
}

.scroll-down {
  padding: 0.5rem;
  color: var(--text-secondary);
  display: inline-flex;
  animation: bounce 2s infinite;
}

.scroll-down svg {
  width: 24px;
  height: 24px;
}

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

.scroll-down:hover {
  color: var(--text-primary);
}

/* =====================================================
   ANIMATIONS
   ===================================================== */

.fade-in-up {
  opacity: 0;
  transform: translateY(32px);
  animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-up:nth-child(1) { animation-delay: 0ms; }
.fade-in-up:nth-child(2) { animation-delay: 100ms; }
.fade-in-up:nth-child(3) { animation-delay: 200ms; }
.fade-in-up:nth-child(4) { animation-delay: 300ms; }
.fade-in-up:nth-child(5) { animation-delay: 400ms; }

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

/* =====================================================
   BUTTONS
   ===================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: var(--font-family);
}

@media (min-width: 640px) {
  .btn {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: var(--accent-primary);
  color: var(--bg-primary);
  box-shadow: 0 10px 25px var(--shadow-medium);
}

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

.btn-secondary:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
}

.btn-full {
  width: 100%;
}

.btn-icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-normal);
}

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

/* =====================================================
   ENHANCED ABOUT SECTION
   ===================================================== */

.about-section {
  padding: 4rem 0 6rem;
  background-color: var(--bg-secondary);
  transition: background-color var(--transition-slow);
}

@media (min-width: 640px) {
  .about-section {
    padding: 6rem 0;
  }
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

@media (min-width: 1024px) {
  .about-grid {
    gap: 5rem;
  }
}

/* Left Side - Profile & Hobbies */
.about-left {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.about-profile {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-profile-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px var(--shadow-medium);
  transition: transform var(--transition-slow);
}

.about-profile:hover .about-profile-img {
  transform: scale(1.02);
}

.profile-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, var(--shadow-light) 100%);
  border-radius: var(--radius-lg);
}

/* Hobbies */
.hobbies-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .hobbies-container {
    gap: 2rem;
  }
}

.hobby-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.hobby-item:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 10px 20px var(--shadow-light);
}

.hobby-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--accent-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.hobby-item:hover .hobby-icon {
  background-color: var(--accent-primary);
  transform: scale(1.1);
}

.hobby-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: brightness(0.8);
}

.hobby-item:hover .hobby-icon img {
  filter: brightness(1);
}

.hobby-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

@media (min-width: 640px) {
  .hobby-label {
    font-size: 1rem;
  }
}

/* Right Side - Bio & Details */
.about-right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

@media (min-width: 640px) {
  .about-title {
    font-size: 2.5rem;
  }
}

.about-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 100%;
}

@media (min-width: 640px) {
  .about-bio {
    font-size: 1.125rem;
  }
}

.about-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-top: 1rem;
}

.hobbies-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1rem;
}

.hobby-detail {
  padding: 1.25rem;
  border-left: 4px solid var(--accent-primary);
  background-color: var(--bg-primary);
  border-radius: var(--radius);
  transition: all var(--transition-normal);
}

.hobby-detail:hover {
  box-shadow: 0 5px 15px var(--shadow-light);
}

.hobby-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.hobby-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =====================================================
   SKILLS SECTION
   ===================================================== */

.skills {
  padding: 4rem 0 6rem;
  background-color: var(--bg-tertiary);
  transition: background-color var(--transition-slow);
}

@media (min-width: 640px) {
  .skills {
    padding: 6rem 0;
  }
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

@media (min-width: 640px) {
  .skills-grid {
    gap: 1rem;
  }
}

.skill-pill {
  padding: 0.5rem 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all var(--transition-normal);
  cursor: default;
}

@media (min-width: 640px) {
  .skill-pill {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
}

.skill-pill:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  box-shadow: 0 5px 15px var(--shadow-light);
}

/* =====================================================
   PROJECTS SECTION
   ===================================================== */

.projects {
  padding: 4rem 0 6rem;
  background-color: var(--bg-primary);
  transition: background-color var(--transition-slow);
}

@media (min-width: 640px) {
  .projects {
    padding: 6rem 0;
  }
}

.projects-header {
  text-align: center;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .projects-header {
    margin-bottom: 4rem;
  }
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 48rem;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .section-subtitle {
    font-size: 1.125rem;
  }
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    gap: 2.5rem;
  }
}

.project-card {
  border-radius: 0.75rem;
  overflow: hidden;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.project-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 10px 25px var(--shadow-light);
}

.project-image {
  position: relative;
  height: 192px;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

@media (min-width: 640px) {
  .project-image {
    height: 224px;
  }
}

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

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background-color: transparent;
  transition: background-color var(--transition-normal);
}

.project-card:hover .project-overlay {
  background-color: rgba(0, 0, 0, 0.2);
}

.project-info {
  padding: 1.5rem 2rem;
}

@media (min-width: 640px) {
  .project-info {
    padding: 2rem;
  }
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  transition: color var(--transition-normal);
}

.project-card:hover .project-title {
  color: var(--accent-primary);
}

@media (min-width: 640px) {
  .project-title {
    font-size: 1.5rem;
  }
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

@media (min-width: 640px) {
  .project-description {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }
}

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

.tech-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: 9999px;
}

@media (min-width: 640px) {
  .tech-badge {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
  }
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary);
  font-weight: 500;
  transition: gap var(--transition-normal);
}

.project-card:hover .project-link {
  gap: 0.75rem;
}

.link-icon {
  width: 16px;
  height: 16px;
}

/* =====================================================
   TESTIMONIALS SECTION
   ===================================================== */

.testimonials {
  padding: 4rem 0 6rem;
  background-color: var(--bg-secondary);
  transition: background-color var(--transition-slow);
}

@media (min-width: 640px) {
  .testimonials {
    padding: 6rem 0;
  }
}

.testimonials > .container-custom > .section-title {
  text-align: center;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .testimonials > .container-custom > .section-title {
    margin-bottom: 4rem;
  }
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.testimonial-card {
  padding: 1.5rem 2rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  transition: all var(--transition-normal);
}

@media (min-width: 640px) {
  .testimonial-card {
    padding: 2rem;
  }
}

.testimonial-card:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 5px 15px var(--shadow-light);
}

.testimonial-quote {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-style: italic;
}

@media (min-width: 640px) {
  .testimonial-quote {
    font-size: 1.125rem;
  }
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #00e0a6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 1.125rem;
}

.author-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
}

@media (min-width: 640px) {
  .author-name {
    font-size: 1rem;
  }
}

.author-role {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

@media (min-width: 640px) {
  .author-role {
    font-size: 0.875rem;
  }
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */

.contact {
  padding: 4rem 0 6rem;
  background: linear-gradient(to bottom, var(--accent-secondary), transparent);
  transition: background var(--transition-slow);
}

@media (min-width: 640px) {
  .contact {
    padding: 6rem 0;
  }
}

.contact-header {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 640px) {
  .contact-header {
    margin-bottom: 4rem;
  }
}

.contact-form {
  max-width: 40rem;
  margin: 0 auto 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .contact-form {
    gap: 1.5rem;
    margin-bottom: 4rem;
  }
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input {
  padding: 0.75rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-family: var(--font-family);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all var(--transition-normal);
}

@media (min-width: 640px) {
  .form-input {
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-secondary);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

@media (min-width: 640px) {
  .social-links {
    gap: 2rem;
    padding-top: 3rem;
  }
}

.social-icon {
  padding: 0.75rem;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

@media (min-width: 640px) {
  .social-icon svg {
    width: 24px;
    height: 24px;
  }
}

.social-icon:hover {
  color: var(--accent-primary);
  background-color: var(--bg-secondary);
  border-radius: var(--radius);
}

/* =====================================================
   FOOTER
   ===================================================== */

.footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  padding: 2rem 0;
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

@media (min-width: 640px) {
  .footer {
    padding: 3rem 0;
  }
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-content {
    flex-direction: row;
    gap: 1.5rem;
  }
}

.footer-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
} 

/* =====================================================
   RESPONSIVE ADJUSTMENTS
   ===================================================== */

@media (max-width: 639px) {
  .nav-links {
    gap: 1rem;
  }
  
  .hero {
    padding: 6rem 0 3rem;
  }
  
  .hero-photo {
    margin-bottom: 1.5rem;
  }
  
  .profile-img {
    width: 80px;
    height: 80px;
  }
}


/* ===============================
   HERO REDESIGN (NO STRUCTURE CHANGE)
   =============================== */

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 3rem;
  text-align: left;
  max-width: 1200px;
}

/* Desktop layout */
@media (min-width: 900px) {
  .hero-content {
    grid-template-columns: 1.2fr 1fr;
  }

  /* Move image to right */
  .hero-photo {
    order: 2;
    justify-content: flex-end;
  }

  /* Keep text left */
  .hero-title,
  .hero-tagline,
  .hero-bio,
  .hero-cta {
    order: 1;
  }
}

/* Remove center alignment */
.hero-content {
  margin: 0 auto;
}

/* ===============================
   IMAGE STYLE (RIGHT SIDE)
   =============================== */

.profile-img {
  width: 420px;
  height: 260px;
  border-radius: 20px;
  object-fit: cover;
  opacity: 1;
  border: none;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  filter: grayscale(100%);
}

/* Glow behind image */
.hero-photo {
  position: relative;
}

.hero-photo::after {
  content: "";
  position: absolute;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, #00d4ff, transparent);
  right: -60px;
  top: 20px;
  filter: blur(80px);
  z-index: -1;
}

/* ===============================
   TEXT STYLING
   =============================== */

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
}

/* Gradient name effect */
.hero-title span {
  background: linear-gradient(90deg, #7c3aed, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Tagline */
.hero-tagline {
  font-size: 1.2rem;
  color: #a78bfa;
}

/* Bio */
.hero-bio {
  max-width: 500px;
}

/* ===============================
   BUTTONS (MODERN LOOK)
   =============================== */

.hero-cta {
  justify-content: flex-start;
}

.btn-primary {
  background: linear-gradient(90deg, #7c3aed, #06b6d4);
  border: none;
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(124,58,237,0.4);
}

.btn-secondary {
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
}

/* ===============================
   BACKGROUND DARK EFFECT
   =============================== */

.hero {
  background: radial-gradient(circle at top left, #020617, #000);
}

/* Floating glow blobs (like 2nd design) */
.hero::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: #7c3aed;
  filter: blur(120px);
  left: -100px;
  bottom: 0;
  opacity: 0.4;
}

.hero::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: #06b6d4;
  filter: blur(120px);
  right: 0;
  top: 0;
  opacity: 0.4;
}

/* FIX HERO HEIGHT (FULL SCREEN) */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

/* ===== IMAGE HOVER EFFECT (NO STRUCTURE CHANGE) ===== */

.hero-photo {
  overflow: hidden;
  border-radius: 20px;
}

/* Smooth transition */
.profile-img {
  transition: transform 0.4s ease, filter 0.4s ease;
  cursor: pointer;
  width: 100%;
  max-width: 520px;   /* controls size */
  height: auto;
}

/* Hover effect */
.hero-photo:hover .profile-img {
  transform: scale(1.08);        /* zoom */
  filter: brightness(1.1) contrast(1.05); /* light effect */
}

.hero-photo::after {
  opacity: 0.4;
  transition: opacity 0.4s ease;
}