/* ===== STYLE.CSS ===== */
/* Table of Contents
1.  :root Variables
2.  Base & Reset
3.  Typography
4.  Main Layout (Grid)
5.  Column 1: Profile Sidebar
6.  Column 2: Main Content
7.  Component: Content Card
8.  Component: Buttons
9.  Component: Forms
10. Section: Skills (Progress Bars)
11. Section: Experience (Timeline)
12. Section: Projects (Grid)
13. Section: Editors Sandbox
14. Section: Testimonials (Carousel)
15. Component: Project Modal
16. Component: FAB & Theme Toggle
17. Animations & Motion
========================= */

/* ===== 1. :root Variables ===== */
:root {
  /* Colors */
  --bg-dark: #0b0b0d;
  --bg-panel: rgba(24, 24, 27, 0.5); /* Semi-transparent panel */
  --bg-panel-solid: #18181b;
  --border-color: rgba(255, 255, 255, 0.07);
  --border-color-highlight: rgba(255, 255, 255, 0.2);

  --accent-primary: #ff8a00; /* Neon Orange */
  --accent-secondary: #00e6c1; /* Neon Teal */
  --accent-active: var(--accent-primary); /* Active accent */

  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-heading: #ffffff;
  --text-inverse: #0b0b0d;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  
  /* Sizing & Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Effects */
  --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px -5px var(--accent-active);
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --transition-speed: 0.3s;
  --transition-ease: ease-in-out;
}

/* Theme toggle class */
body.theme-teal {
  --accent-active: var(--accent-secondary);
  --theme-color: var(--accent-secondary);
}

/* ===== 2. Base & Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
}

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

ul, ol {
  list-style: none;
}

a {
  color: var(--accent-active);
  text-decoration: none;
  transition: color var(--transition-speed) var(--transition-ease);
}

a:hover {
  color: var(--text-heading);
}

/* ===== 3. Typography ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.25rem; }
p { margin-bottom: var(--spacing-md); }
p:last-child { margin-bottom: 0; }

/* Section Heading Style */
.content-heading {
  font-size: 1.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
}
/* Line decoration for heading */
.content-heading::after {
  content: '';
  flex-grow: 1;
  height: 1px;
  background-color: var(--border-color);
  margin-left: var(--spacing-md);
}

/* ===== 4. Main Layout (Grid) ===== */
.portfolio-grid {
  max-width: 1400px;
  margin: 0 auto;
}

/* Mobile: Single column */
.profile-sidebar {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.content-main {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Desktop: 2-column grid */
@media (min-width: 1024px) {
  .portfolio-grid {
    display: grid;
    grid-template-columns: minmax(350px, 1fr) 2.5fr;
    gap: var(--spacing-xl);
  }
  .profile-sidebar {
    height: 100vh;
    position: sticky;
    top: 0;
    padding: var(--spacing-xl);
    border-bottom: none;
    /* Enable vertical scroll if viewport is too short */
    overflow-y: auto;
  }
  .content-main {
    padding: var(--spacing-xl) var(--spacing-lg);
    gap: var(--spacing-xl);
  }
}

/* ===== 5. Column 1: Profile Sidebar ===== */
.profile-sidebar__sticky-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.profile-picture {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  background-color: var(--bg-panel-solid);
  position: relative;
}
.profile-picture svg {
  width: 100%;
  height: 100%;
  color: var(--text-secondary);
  padding: var(--spacing-lg);
}
.profile-picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-name {
  font-size: 2.5rem;
  font-weight: 800;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  /* Neon glow effect */
  text-shadow: 0 0 5px var(--accent-active), 0 0 10px var(--accent-active);
}
.profile-headline {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  text-shadow: none;
  margin-top: var(--spacing-sm);
}
.profile-tagline {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-lg);
}

.profile-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.profile-nav .nav-link {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-speed) var(--transition-ease);
}
.nav-link span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  min-width: 2.5rem;
  transition: all var(--transition-speed) var(--transition-ease);
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-heading);
  background-color: var(--bg-panel);
}
.nav-link:hover span,
.nav-link.active span {
  color: var(--accent-active);
}

/* Hide nav on mobile */
.profile-nav {
  display: none;
}
@media (min-width: 1024px) {
  .profile-nav {
    display: block;
  }
}

.profile-socials {
  display: flex;
  gap: var(--spacing-lg);
}
.profile-socials .icon {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--text-secondary);
  transition: all var(--transition-speed) var(--transition-ease);
}
.profile-socials a:hover .icon {
  color: var(--accent-active);
  transform: scale(1.1) translateY(-2px);
}

/* Profile picture glow ring */
.profile-picture::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent-active), transparent 60%, var(--accent-active));
  filter: blur(6px);
  opacity: 0.25;
  animation: spin-slow 12s linear infinite;
  pointer-events: none;
}
.profile-picture::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1px solid var(--border-color-highlight);
  box-shadow: inset 0 0 12px -2px var(--accent-active);
  opacity: 0.4;
  pointer-events: none;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .profile-picture::before { animation: none; }
}

/* Sidebar enhancements */
.profile-status {
  margin-top: var(--spacing-md);
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-color-highlight);
  background-color: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.875rem;
  box-shadow: 0 0 20px -10px var(--accent-active);
}
.status-pill::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 10px #22c55e;
}

.contact-mini {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}
@media (min-width: 1024px) {
  .contact-mini { grid-template-columns: 1fr 1fr; }
}
.mini-link {
  display: grid;
  grid-template-columns: 1.5rem auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-panel);
  color: var(--text-primary);
  transition: transform var(--transition-speed) var(--transition-ease), border-color var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}
.mini-link:hover {
  transform: translateY(-2px);
  border-color: var(--border-color-highlight);
  box-shadow: var(--shadow-soft);
}
.mini-link .icon {
  width: 1rem;
  height: 1rem;
  color: var(--accent-active);
}
.mini-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.mini-value {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
}
.mini-link.copied .mini-value {
  color: var(--accent-active);
}

/* Sidebar actions */
.profile-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* Nav accent indicator */
.profile-nav .nav-link { position: relative; }
.profile-nav .nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0%;
  background-color: var(--accent-active);
  border-radius: 3px;
  transition: height var(--transition-speed) var(--transition-ease);
}
.profile-nav .nav-link:hover::before,
.profile-nav .nav-link.active::before { height: 60%; }

/* ===== 6. Component: Content Card ===== */
.content-card {
  /* This is the "glassmorphism" effect */
  background-color: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-soft);
  
  /* Adds a subtle 3D tilt on hover */
  transition: all var(--transition-speed) var(--transition-ease);
}
/* Entrance animation placeholder */
.content-card {
  opacity: 0;
  transform: translateY(20px);
  will-change: opacity, transform;
}
.content-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Staggered animation delays */
.content-card:nth-child(1) { transition-delay: 0.1s; }
.content-card:nth-child(2) { transition-delay: 0.2s; }
.content-card:nth-child(3) { transition-delay: 0.3s; }
.content-card:nth-child(4) { transition-delay: 0.4s; }
.content-card:nth-child(5) { transition-delay: 0.5s; }
.content-card:nth-child(6) { transition-delay: 0.6s; }
.content-card:nth-child(7) { transition-delay: 0.7s; }


@media (min-width: 1024px) {
  .content-card:hover {
    border-color: var(--border-color-highlight);
    transform: perspective(1000px) rotateX(1deg) rotateY(1.5deg) scale(1.01);
    box-shadow: var(--shadow-soft), 0 0 30px -10px var(--bg-dark);
  }
}
@supports (backdrop-filter: blur(10px)) {
  .content-card {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

/* ===== 7. Component: Buttons ===== */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-speed) var(--transition-ease);
}

.btn-primary {
  background-color: var(--accent-active);
  color: var(--text-inverse);
  border-color: var(--accent-active);
}
.btn-primary:hover {
  background-color: transparent;
  color: var(--accent-active);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: var(--border-color-highlight);
}
.btn-secondary:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

/* CSS Ripple Effect for Buttons */
.btn-ripple {
  position: relative;
  overflow: hidden;
}
.btn-ripple span.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: ripple 600ms linear;
  background-color: rgba(255, 255, 255, 0.7);
}
@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Focus styles for accessibility */
.btn:focus-visible,
.form-input:focus-visible,
.nav-link:focus-visible,
.project-card:focus-visible {
  outline: 2px solid var(--accent-active);
  outline-offset: 2px;
  box-shadow: none;
}

/* ===== 8. Component: Forms ===== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}
.form-group {
  display: flex;
  flex-direction: column;
}
.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}
.form-input,
.code-editor,
.markdown-preview {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: all var(--transition-speed) var(--transition-ease);
}
.form-input:focus,
.code-editor:focus {
  border-color: var(--accent-active);
  box-shadow: 0 0 10px -4px var(--accent-active);
  outline: none;
}
.form-input.invalid {
  border-color: #f87171; /* Red-400 */
}
.form-error {
  font-size: 0.875rem;
  color: #f87171;
  min-height: 1.25rem;
  margin-top: var(--spacing-xs);
}
#form-success-message {
  color: var(--accent-secondary);
  font-weight: 600;
  border: 1px solid var(--accent-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  background-color: rgba(0, 230, 193, 0.05);
}

/* ===== 9. Section: Skills (Progress Bars) ===== */
.skills-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}
.skill-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}
.skill-icon {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  color: var(--accent-active);
}
.skill-details {
  width: 100%;
}
.skill-name {
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: var(--spacing-xs);
}
.skill-bar {
  width: 100%;
  height: 8px;
  background-color: var(--bg-dark);
  border-radius: 99px;
  overflow: hidden;
}
.skill-bar__inner {
  height: 100%;
  width: 0; /* Animated by keyframes */
  background-color: var(--accent-active);
  border-radius: 99px;
  transition: width 1.5s cubic-bezier(0.25, 1, 0.5, 1);
}
/* Trigger animation when card is visible */
.content-card.is-visible .skill-bar__inner {
  width: var(--skill-level);
}

/* ===== 10. Section: Experience (Timeline) ===== */
.experience-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}
/* Timeline pseudo-element */
.experience-timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background-color: var(--border-color);
}
.timeline-item {
  position: relative;
  padding-left: var(--spacing-xl);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--bg-dark);
  border: 2px solid var(--accent-active);
  z-index: 1;
}
.timeline-title {
  color: var(--text-heading);
  font-weight: 600;
}
.timeline-meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: var(--spacing-xs) 0;
}
.timeline-meta .company {
  color: var(--accent-active);
  font-weight: 500;
}
.timeline-meta .date::before {
  content: '•';
  margin: 0 var(--spacing-sm);
}
.timeline-description {
  color: var(--text-primary);
  font-size: 0.95rem;
}

/* ===== 11. Section: Projects (Grid) ===== */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}
@media (min-width: 768px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.project-card {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-panel-solid);
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-ease);
  width: 100%; /* Fix for button default styling */
  text-align: left;
}
.project-card:hover {
  transform: scale(1.03);
  border-color: var(--accent-active);
  box-shadow: var(--shadow-glow);
}
.project-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: opacity var(--transition-speed) var(--transition-ease);
}
.project-card:hover .project-image {
  opacity: 0.8;
}
.project-info {
  padding: var(--spacing-md);
}
.project-info h3 {
  color: var(--text-heading);
  font-weight: 600;
}
.project-info p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0;
}
.project-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background-color: var(--accent-active);
  color: var(--text-inverse);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
/* Featured project stands out */
.project-card.featured {
  grid-column: 1 / -1; /* Spans full width on 2-col layout */
}
.project-card.featured .project-image {
  height: 300px;
}
.project-card.featured .project-info h3 {
  font-size: 1.5rem;
}

/* ===== 12. Section: Editors Sandbox ===== */
.editors-container {
  /* Hidden on mobile by default */
  display: none;
  padding: 0;
}
.editors-container.is-open {
  display: block;
}
@media (min-width: 1024px) {
  .editors-container {
    display: block; /* Always visible on desktop */
    padding: var(--spacing-xl);
  }
}

.editor-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
}
.tab-button {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-speed) var(--transition-ease);
}
.tab-button:hover {
  color: var(--text-primary);
}
.tab-button.active {
  color: var(--accent-active);
  border-bottom-color: var(--accent-active);
}
.tab-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.tab-panel[hidden] {
  display: none;
}
.editor-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Code Editor (Tab 1) */
.code-editor-wrapper {
  position: relative;
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.line-numbers {
  position: absolute;
  left: 0;
  top: 0;
  padding: 0.75rem 0.5rem;
  font-family: monospace;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-secondary);
  text-align: right;
  width: 2.5rem;
  user-select: none;
}
.code-editor {
  width: 100%;
  height: 300px;
  font-family: "Courier New", Courier, monospace;
  font-size: 1rem;
  line-height: 1.5;
  resize: vertical;
  border: none;
  border-radius: 0;
  padding-left: 3rem; /* Space for line numbers */
}
.editor-controls {
  display: flex;
  gap: var(--spacing-md);
}
.preview-wrapper {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  height: 300px;
}
#sandbox-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background-color: #fff;
}

/* Markdown Editor (Tab 2) */
.markdown-editor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  height: 400px;
}
@media (min-width: 768px) {
  .markdown-editor-grid {
    grid-template-columns: 1fr 1fr;
  }
}
#md-editor {
  height: 100%;
  resize: none;
}
.markdown-preview {
  height: 100%;
  overflow-y: auto;
}
/* Basic markdown styling */
.markdown-preview > *:first-child { margin-top: 0; }
.markdown-preview h1 { font-size: 1.5rem; margin-top: 1rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.25rem; }
.markdown-preview h2 { font-size: 1.25rem; margin-top: 0.75rem; }
.markdown-preview strong { font-weight: 700; }
.markdown-preview em { font-style: italic; }
.markdown-preview code { background-color: var(--bg-dark); padding: 0.2em 0.4em; border-radius: var(--radius-sm); font-family: monospace; }
.markdown-preview ul { list-style: disc; margin-left: 1.5rem; }

/* Media Preview (Tab 3) */
.media-preview-box {
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  text-align: center;
  color: var(--text-secondary);
}
#media-preview video,
#media-preview img,
#media-preview iframe {
  width: 100%;
  height: auto;
  max-height: 400px;
  border-radius: var(--radius-sm);
}

/* ===== 13. Section: Testimonials (Carousel) ===== */
.carousel {
  position: relative;
  padding: 0 var(--spacing-xl); /* Space for buttons */
}
.carousel-track-container {
  overflow: hidden;
}
.carousel-track {
  display: flex;
  transition: transform 0.5s ease-in-out;
}
.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  padding: 0 var(--spacing-md);
  text-align: center;
}
.testimonial-quote {
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 500;
  color: var(--text-heading);
}
.testimonial-quote::before {
  content: '“';
  font-size: 3rem;
  color: var(--accent-active);
  line-height: 1;
}
.testimonial-author {
  display: block;
  margin-top: var(--spacing-md);
  font-weight: 600;
  color: var(--text-secondary);
  font-style: normal;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--bg-panel-solid);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-ease);
}
.carousel-btn:hover {
  background-color: var(--accent-active);
  color: var(--text-inverse);
  border-color: var(--accent-active);
}
.carousel-btn.prev { left: -10px; }
.carousel-btn.next { right: -10px; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}
.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--border-color-highlight);
  border: none;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-ease);
}
.carousel-dot.active {
  background-color: var(--accent-active);
  transform: scale(1.1);
}

/* ===== 14. Component: Project Modal ===== */
.project-modal {
  max-width: 700px;
  width: 90%;
  background-color: var(--bg-panel-solid);
  color: var(--text-primary);
  border: 1px solid var(--border-color-highlight);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}
/* Modal open animation */
.project-modal[open] {
  animation: modal-fade-in 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modal-fade-in {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.project-modal::backdrop {
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
}
.project-modal-content {
  position: relative;
}
.modal-close-btn {
  position: absolute;
  top: calc(var(--spacing-xl) * -1);
  right: calc(var(--spacing-xl) * -1);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: all var(--transition-speed) var(--transition-ease);
}
.modal-close-btn:hover {
  color: var(--text-heading);
  background-color: var(--bg-panel);
}
.modal-close-btn svg {
  width: 1.5rem;
  height: 1.5rem;
}
#modal-title {
  font-size: 1.75rem;
  color: var(--text-heading);
  margin-bottom: var(--spacing-sm);
}
.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}
.modal-tag {
  background-color: var(--accent-active);
  color: var(--text-inverse);
  font-size: 0.75rem;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
}
#modal-description {
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== 15. Component: FAB & Theme Toggle ===== */
.fab {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 3.5rem;
  height: 3.5rem;
  background-color: var(--accent-active);
  color: var(--text-inverse);
  border-radius: 50%;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1), var(--shadow-glow);
  cursor: pointer;
  z-index: 100;
  transition: all var(--transition-speed) var(--transition-ease);
}
.fab:hover {
  transform: scale(1.1) translateY(-3px);
}
.fab svg {
  width: 1.5rem;
  height: 1.5rem;
  transition: transform var(--transition-speed) var(--transition-ease), opacity var(--transition-speed) var(--transition-ease);
}
.fab .icon-close {
  display: none;
}
/* FAB open state */
.fab.is-open {
  background-color: var(--bg-panel-solid);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
}
.fab.is-open .icon-open {
  display: none;
}
.fab.is-open .icon-close {
  display: block;
}

@media (min-width: 1024px) {
  .fab {
    display: none; /* Hide FAB on desktop */
  }
}

.theme-toggle {
  position: fixed;
  bottom: var(--spacing-lg);
  left: var(--spacing-lg);
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--bg-panel-solid);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
}
.theme-toggle svg {
  width: 100%;
  height: 100%;
  position: absolute;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.theme-toggle .icon-orange {
  color: var(--accent-primary);
  opacity: 1;
  transform: scale(1);
}
.theme-toggle .icon-teal {
  color: var(--accent-secondary);
  opacity: 0;
  transform: scale(0);
}
/* Toggled state */
body.theme-teal .theme-toggle .icon-orange {
  opacity: 0;
  transform: scale(0);
}
body.theme-teal .theme-toggle .icon-teal {
  opacity: 1;
  transform: scale(1);
}


/* ===== 16. Animations & Motion ===== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
    transition-delay: 0s !important;
    animation-delay: 0s !important;
  }
  
  /* Disable specific transforms */
  .content-card,
  .btn,
  .profile-socials a:hover .icon,
  .project-card:hover {
    transform: none !important;
  }
  
  /* Hide scroll-triggered elements immediately */
  .content-card {
    opacity: 1;
  }
}