/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* ============================================
   THEME COLORS
   ============================================ */
body.dark {
  background-color: #0f172a;
  color: #e2e8f0;
}

body.light {
  background-color: #ffffff;
  color: #1e293b;
}

/* ============================================
   CANVAS BACKGROUND
   ============================================ */
#bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* ============================================
   NAVIGATION
   ============================================ */
nav {
  position: fixed;
  width: 100%;
  z-index: 50;
  backdrop-filter: blur(10px);
  background-color: rgba(15, 23, 42, 0.8);
}

body.light nav {
  background-color: rgba(255, 255, 255, 0.8);
}

nav .max-w-7xl {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  nav .max-w-7xl {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  nav .max-w-7xl {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

nav .flex {
  display: flex;
}

nav .justify-between {
  justify-content: space-between;
}

nav .items-center {
  align-items: center;
}

nav .h-16 {
  height: 4rem;
}

#nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(to right, #6366f1, #9333ea);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#desktop-nav {
  display: none;
  gap: 2rem;
}

@media (min-width: 768px) {
  #desktop-nav {
    display: flex;
  }
}

#desktop-nav a {
  color: #e2e8f0;
  font-weight: 500;
  transition: color 0.3s ease;
  text-decoration: none;
}

body.light #desktop-nav a {
  color: #1e293b;
}

#desktop-nav a:hover {
  color: #6366f1;
}

.theme-toggle {
  background: linear-gradient(135deg, #6366f1, #9333ea);
  color: white;
  border: none;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

#mobile-menu {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(15, 23, 42, 0.95);
}

body.light #mobile-menu {
  background-color: rgba(255, 255, 255, 0.95);
  border-top-color: rgba(0, 0, 0, 0.1);
}

#mobile-menu.hidden {
  display: none;
}

@media (min-width: 768px) {
  #mobile-menu {
    display: none !important;
  }
}

#mobile-nav {
  padding: 0.75rem 1rem;
}

#mobile-nav a {
  display: block;
  padding: 0.5rem 0;
  color: #e2e8f0;
  text-decoration: none;
  transition: color 0.3s ease;
}

body.light #mobile-nav a {
  color: #1e293b;
}

#mobile-nav a:hover {
  color: #6366f1;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  min-height: 100vh;
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

section {
  position: relative;
  z-index: 1;
}

/* ============================================
   HOME SECTION
   ============================================ */
#home {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

#home .text-center {
  text-align: center;
}

#home .w-48 {
  width: 12rem;
}

#home .h-48 {
  height: 12rem;
}

#home .mx-auto {
  margin-left: auto;
  margin-right: auto;
}

#home .mb-8 {
  margin-bottom: 2rem;
}

#home .rounded-full {
  border-radius: 9999px;
}

#home .overflow-hidden {
  overflow: hidden;
}

#home .border-4 {
  border-width: 4px;
}

#home .border-indigo-500 {
  border-color: #6366f1;
}

#home .shadow-2xl {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

#home .shadow-indigo-500\/50 {
  box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.5);
}

#profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#hero-name {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #6366f1, #9333ea, #ec4899);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@media (min-width: 768px) {
  #hero-name {
    font-size: 4.5rem;
  }
}

#hero-title {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  #hero-title {
    font-size: 1.5rem;
  }
}

#home a {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: linear-gradient(to right, #6366f1, #9333ea);
  border-radius: 9999px;
  color: white;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#home a:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
}

/* ============================================
   ABOUT, FOCUS, SKILLS, JOURNEY, PROJECTS
   ============================================ */
.px-4 {
  padding-left: 1rem;
  padding-right: 1rem;
}

.py-20 {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.max-w-4xl,
.max-w-6xl {
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.max-w-6xl {
  max-width: 72rem;
}

h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 3rem;
  text-align: center;
  background: linear-gradient(to right, #818cf8, #c084fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@media (min-width: 768px) {
  h2 {
    font-size: 3rem;
  }
}

h2 i {
  margin-right: 0.75rem;
}

/* ============================================
   CARD STYLES
   ============================================ */
.card {
  background: rgba(30, 41, 59, 0.5);
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.light .card {
  background: rgba(241, 245, 249, 0.8);
}

.card:hover {
  transform: translateY(-5px);
}

.gradient-border {
  position: relative;
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 1rem;
  padding: 2px;
  background: linear-gradient(135deg, #6366f1, #9333ea, #ec4899);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.5;
}

.rounded-2xl {
  border-radius: 1rem;
}

.p-8 {
  padding: 2rem;
}

.p-12 {
  padding: 3rem;
}

@media (min-width: 768px) {
  .md\:p-12 {
    padding: 3rem;
  }
}

.border {
  border-width: 1px;
  border-color: rgba(99, 102, 241, 0.2);
}

body.light .border {
  border-color: rgba(99, 102, 241, 0.3);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
#about-content p {
  font-size: 1.125rem;
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  #about-content p {
    font-size: 1.25rem;
  }
}

#about-content i.fa-quote-left {
  color: #6366f1;
  margin-right: 0.5rem;
}

/* ============================================
   FOCUS SECTION
   ============================================ */
.grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gap-8 {
  gap: 2rem;
}

#focus-grid .card {
  text-align: center;
  padding: 2rem;
}

#focus-grid .text-5xl {
  font-size: 3rem;
  margin-bottom: 1rem;
}

#focus-grid .text-2xl {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.text-indigo-400 {
  color: #818cf8;
}

.text-purple-400 {
  color: #c084fc;
}

.text-pink-400 {
  color: #f472b6;
}

/* ============================================
   JOURNEY SECTION
   ============================================ */
#journey-container {
  position: relative;
  min-height: 800px;
}

.journey-path {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 0;
  background: linear-gradient(to bottom, #6366f1, #9333ea, #ec4899);
  transform: translateX(-50%);
  transition: height 0.8s ease-out;
}

.journey-pulse {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 20px;
  background: #6366f1;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: pulse 2s infinite;
  z-index: 2;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
  }
  50% {
    box-shadow: 0 0 0 15px rgba(99, 102, 241, 0);
  }
}

.journey-dot {
  position: absolute;
  left: 50%;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #6366f1, #9333ea);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
  z-index: 3;
}

.journey-item {
  display: grid;
  gap: 2rem;
  margin-bottom: 4rem;
  position: relative;
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.journey-item.visible {
  opacity: 1;
  transform: translateX(0);
}

@media (min-width: 768px) {
  .md\:order-1 {
    order: 1;
  }
  
  .md\:order-2 {
    order: 2;
  }
  
  .md\:pr-8 {
    padding-right: 2rem;
  }
  
  .md\:pl-8 {
    padding-left: 2rem;
  }
}

.border-l-4 {
  border-left-width: 4px;
}

.border-l-indigo-500 {
  border-left-color: #6366f1;
}

.border-l-purple-500 {
  border-left-color: #9333ea;
}

.border-l-pink-500 {
  border-left-color: #ec4899;
}

.h-full {
  height: 100%;
}

.gap-4 {
  gap: 1rem;
}

.flex-shrink-0 {
  flex-shrink: 0;
}

.w-12 {
  width: 3rem;
}

.h-12 {
  height: 3rem;
}

.bg-gradient-to-br {
  background-image: linear-gradient(to bottom right, var(--tw-gradient-stops));
}

.from-indigo-500 {
  --tw-gradient-from: #6366f1;
  --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(99, 102, 241, 0));
}

.to-indigo-700 {
  --tw-gradient-to: #4338ca;
}

.from-purple-500 {
  --tw-gradient-from: #9333ea;
}

.to-purple-700 {
  --tw-gradient-to: #6b21a8;
}

.from-pink-500 {
  --tw-gradient-from: #ec4899;
}

.to-pink-700 {
  --tw-gradient-to: #be185d;
}

.text-xl {
  font-size: 1.25rem;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.text-sm {
  font-size: 0.875rem;
}

.flex-1 {
  flex: 1;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.project-card {
  position: relative;
  overflow: hidden;
}

.project-iframe {
  width: 100%;
  height: 300px;
  border: none;
  pointer-events: none;
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 300px;
  background: rgba(15, 23, 42, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: pointer;
}

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

.text-4xl {
  font-size: 2.25rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-3 {
  margin-bottom: 0.75rem;
}

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

.p-6 {
  padding: 1.5rem;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-2 {
  gap: 0.5rem;
}

.tag {
  padding: 0.25rem 0.75rem;
  background-color: rgba(99, 102, 241, 0.2);
  color: #818cf8;
  border-radius: 9999px;
  font-size: 0.875rem;
}

/* ============================================
   IFRAME SECTIONS
   ============================================ */
.py-6 {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.max-w-5xl {
  max-width: 64rem;
}

.min-h-\[400px\] {
  min-height: 400px;
}

.min-h-\[800px\] {
  min-height: 800px;
}

.rounded-xl {
  border-radius: 0.75rem;
}

.shadow-lg {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.absolute {
  position: absolute;
}

.inset-0 {
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.border-0 {
  border-width: 0;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
#contact form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.space-y-6 > * + * {
  margin-top: 1.5rem;
}

.block {
  display: block;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #e2e8f0;
  transition: all 0.3s ease;
}

body.light .input {
  background: rgba(241, 245, 249, 0.8);
  color: #1e293b;
}

.input:focus {
  outline: none;
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

button[type="submit"] {
  width: 100%;
  padding: 0.75rem;
  background: linear-gradient(to right, #6366f1, #9333ea);
  border-radius: 0.5rem;
  font-weight: 600;
  color: white;
  border: none;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
}

.mt-8 {
  margin-top: 2rem;
}

.pt-8 {
  padding-top: 2rem;
}

.border-t {
  border-top-width: 1px;
  border-color: rgba(255, 255, 255, 0.1);
}

body.light .border-t {
  border-color: rgba(0, 0, 0, 0.1);
}

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

.gap-6 {
  gap: 1.5rem;
}

.text-2xl {
  font-size: 1.5rem;
}

.social-icon {
  font-size: 1.5rem;
  transition: transform 0.3s ease, filter 0.3s ease;
  text-decoration: none;
}

.social-icon:hover {
  transform: scale(1.2);
  filter: drop-shadow(0 0 10px currentColor);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2rem 0;
  text-align: center;
}

body.light footer {
  border-top-color: rgba(0, 0, 0, 0.1);
}

#footer-text {
  font-size: 0.875rem;
  color: #94a3b8;
  margin-bottom: 0.5rem;
}

body.light #footer-text {
  color: #64748b;
}

footer p {
  font-size: 1.125rem;
  font-weight: 500;
}

footer a {
  color: #6366f1;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

footer a:hover {
  color: #ec4899;
  filter: drop-shadow(0 0 6px #ec4899);
}

/* ============================================
   ANIMATIONS & EFFECTS
   ============================================ */
.pulse-hover {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.icon-hover {
  transition: transform 0.3s ease, color 0.3s ease;
}

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

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-glow:hover::before {
  width: 300px;
  height: 300px;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
.hidden {
  display: none;
}

@media (min-width: 768px) {
  .md\:flex {
    display: flex;
  }
  
  .md\:hidden {
    display: none;
  }
  
  .md\:text-7xl {
    font-size: 4.5rem;
  }
  
  .md\:text-2xl {
    font-size: 1.5rem;
  }
  
  .md\:text-5xl {
    font-size: 3rem;
  }
  
  .md\:text-xl {
    font-size: 1.25rem;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.inline-block {
  display: inline-block;
}

.mr-3 {
  margin-right: 0.75rem;
}

.mr-1 {
  margin-right: 0.25rem;
}

.z-50 {
  z-index: 50;
}

.z-10 {
  z-index: 10;
}

.z-1 {
  z-index: 1;
}

.z-2 {
  z-index: 2;
}

.z-3 {
  z-index: 3;
}

.transition {
  transition: all 0.3s ease;
}

.transition-all {
  transition: all 0.3s ease;
}

.duration-300 {
  transition-duration: 300ms;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #1e293b;
}

body.light ::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, #6366f1, #9333ea);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(to bottom, #4f46e5, #7e22ce);
}

/* ============================================
   SELECTION STYLING
   ============================================ */
::selection {
  background: rgba(99, 102, 241, 0.3);
  color: #ffffff;
}

body.light ::selection {
  background: rgba(99, 102, 241, 0.2);
  color: #1e293b;
}