/* ==========================================================================
   UDIT SHETTY PORTFOLIO STYLES
   Inspired by pahima.tech design system
   Standard typography, Default cursor, Wandering Black Ninja, Silver Ninja Stars
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* --- Design Tokens / Theme Variables --- */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Light Mode Colors */
  --bg-color: #fcfcfc;
  --bg-subtle: #f4f4f5;
  --text-main: #18181b;
  --text-muted: #52525b;
  --text-subtle: #71717a;
  --border-color: rgba(228, 228, 231, 0.8);
  --border-hover: rgba(161, 161, 170, 0.6);
  --card-bg: rgba(255, 255, 255, 0.9);
  --card-border: rgba(228, 228, 231, 0.8);
  --header-bg: rgba(252, 252, 252, 0.85);
  --badge-bg: rgba(244, 244, 245, 0.8);
  --badge-border: rgba(228, 228, 231, 0.9);
  
  --primary-color: #18181b;
  --primary-hover: #27272a;
  --primary-light: rgba(24, 24, 27, 0.08);
  --accent-glow: rgba(0, 0, 0, 0.1);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
}

.dark {
  /* Dark Mode Colors */
  --bg-color: #09090b;
  --bg-subtle: #18181b;
  --text-main: #f4f4f5;
  --text-muted: #a1a1aa;
  --text-subtle: #71717a;
  --border-color: rgba(39, 39, 42, 0.8);
  --border-hover: rgba(82, 82, 91, 0.6);
  --card-bg: rgba(24, 24, 27, 0.65);
  --card-border: rgba(39, 39, 42, 0.8);
  --header-bg: rgba(9, 9, 11, 0.85);
  --badge-bg: rgba(39, 39, 42, 0.5);
  --badge-border: rgba(63, 63, 70, 0.6);
  
  --primary-color: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: rgba(59, 130, 246, 0.15);
  --accent-glow: rgba(59, 130, 246, 0.25);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  cursor: default;
}

a, button, input, textarea, select {
  cursor: pointer;
}

/* --- Background Minimal Silver Ninja Stars Canvas --- */
#bg-ninja-stars {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35; /* Brightened slightly for clear visibility */
  transition: opacity 0.5s ease;
}

#bg-ninja-stars.active {
  opacity: 0.85; /* Active hover brightness */
}

/* --- Layout Container --- */
.max-w-container {
  max-width: 44rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* --- Header Navbar --- */
.header-nav {
  position: sticky;
  top: 0.75rem;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background-color: var(--header-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  padding: 0.6rem 1.25rem;
  box-shadow: var(--shadow-sm);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-avatar {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  object-fit: cover;
  background-color: #000000;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease;
}

.nav-brand:hover .brand-avatar {
  transform: scale(1.05);
}

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

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-hover);
}

.sun-icon, .moon-icon {
  width: 1.1rem;
  height: 1.1rem;
  stroke-width: 2;
}

.dark .sun-icon { display: block; }
.dark .moon-icon { display: none; }
.sun-icon { display: none; }
.moon-icon { display: block; }

/* --- Hero Section --- */
.hero-section {
  padding-top: 2.5rem;
  padding-bottom: 2rem;
  position: relative;
  z-index: 10;
}

.avatar-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 1.25rem;
}

.hero-avatar {
  width: 6.5rem;
  height: 6.5rem;
  border-radius: 9999px;
  object-fit: cover;
  background-color: #000000;
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.avatar-wrapper:hover .hero-avatar {
  transform: scale(1.04);
  border-color: var(--text-main);
}

.hero-intro {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.hero-name {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.2;
}

.hero-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.01em;
  margin-top: 0.15rem;
}

.hero-description {
  margin-top: 0.75rem;
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 40rem;
}

/* --- Action Buttons --- */
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.65rem;
  text-decoration: none;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-black {
  background-color: #000000;
  color: #ffffff;
  border-color: #000000;
}

.dark .btn-black {
  background-color: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

.btn-black:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

/* --- Social Links --- */
.social-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.social-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.65rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.2s ease;
}

.social-pill:hover {
  transform: translateY(-1px);
  background-color: var(--card-bg);
  border-color: var(--border-hover);
}

.social-pill svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: currentColor;
}

/* --- Section Formatting --- */
.section-wrapper {
  margin-top: 3.25rem;
  scroll-margin-top: 5rem;
  position: relative;
  z-index: 10;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 0.75rem;
}

.section-text {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* --- Skills Badges --- */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.75rem;
  background-color: var(--badge-bg);
  border: 1px solid var(--badge-border);
  border-radius: 0.5rem;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-main);
  transition: all 0.15s ease;
}

.skill-badge:hover {
  transform: translateY(-1px);
  background-color: var(--card-bg);
  border-color: var(--border-hover);
}

/* --- Education Timeline --- */
.timeline {
  position: relative;
  padding-left: 1.25rem;
  margin-top: 1rem;
  border-left: 2px solid var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -1.65rem;
  top: 0.35rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background-color: var(--text-main);
  border: 2px solid var(--bg-color);
}

.timeline-title {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--text-main);
}

.timeline-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.2rem;
}

.score-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-main);
  background-color: var(--badge-bg);
  border: 1px solid var(--badge-border);
  padding: 0.1rem 0.45rem;
  border-radius: 0.3rem;
}

/* --- Projects Cards --- */
.projects-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1rem;
}

.project-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 0.85rem;
  padding: 1.25rem;
  transition: all 0.2s ease;
}

.project-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-hover);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.6rem;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
}

.tag {
  font-size: 0.725rem;
  font-weight: 500;
  color: var(--text-muted);
  background-color: var(--bg-subtle);
  padding: 0.15rem 0.45rem;
  border-radius: 0.3rem;
}

.project-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.project-bullets li {
  font-size: 0.875rem;
  color: var(--text-muted);
  position: relative;
  padding-left: 1.1rem;
  line-height: 1.55;
}

.project-bullets li::before {
  content: '•';
  position: absolute;
  left: 0.2rem;
  color: var(--text-main);
}

/* --- Achievements --- */
.achievements-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-top: 1rem;
}

@media (min-width: 640px) {
  .achievements-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.achievement-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 0.75rem;
  padding: 1.15rem;
}

.achievement-year {
  font-size: 0.725rem;
  font-weight: 700;
  color: var(--text-subtle);
  margin-bottom: 0.2rem;
}

.achievement-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.achievement-desc {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Contact Section --- */
.contact-header-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.contact-header-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-header-label {
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.contact-header-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.contact-header-sub {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.contact-avatar-badge {
  position: relative;
  flex-shrink: 0;
}

.contact-avatar-img {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  object-fit: cover;
  background-color: #000;
  border: 2px solid var(--border-color);
}

.open-pill {
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #10b981;
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 9999px;
  white-space: nowrap;
}

.contact-form-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

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

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 0.6rem;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--text-main);
  background-color: var(--card-bg);
}

.form-textarea {
  min-height: 5.5rem;
  resize: vertical;
}

.direct-contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.contact-pill-card {
  flex: 1;
  min-width: 14rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.1rem;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  transition: all 0.2s ease;
}

.contact-pill-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-hover);
}

.contact-pill-icon {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 0.5rem;
  background-color: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  flex-shrink: 0;
}

.contact-pill-icon svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* --- Footer --- */
.footer {
  margin-top: 3.5rem;
  padding-top: 1.75rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  text-align: center;
  font-size: 0.825rem;
  color: var(--text-subtle);
}

/* --- BLACK NINJA COMPANION --- */
#ninja-container {
  position: fixed;
  bottom: 20px;
  left: 30px;
  width: 64px;
  height: 64px;
  z-index: 999;
  pointer-events: auto;
  user-select: none;
  cursor: pointer;
  will-change: transform;
}

.ninja-smoke {
  position: absolute;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180,180,180,0.85) 0%, rgba(80,80,80,0) 70%);
  animation: smokeFade 0.6s ease-out forwards;
  pointer-events: none;
}

@keyframes smokeFade {
  0% { transform: scale(0.3) translateY(0); opacity: 0.95; }
  100% { transform: scale(2.0) translateY(-25px); opacity: 0; }
}

.ninja-speech-bubble {
  position: absolute;
  bottom: 70px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--text-main);
  color: var(--bg-color);
  font-size: 0.725rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 0.5rem;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1000;
}

.ninja-speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px 5px 0;
  border-style: solid;
  border-color: var(--text-main) transparent;
}

.ninja-speech-bubble.active {
  opacity: 1;
  transform: translateX(-50%) translateY(-5px);
}