@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@300;400;500;600;700&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&family=Outfit:wght@100..900&display=swap');

/* --- DESIGN SYSTEM / VARIABLES --- */
:root {
  /* Color Palette (Darcula & One Dark hybrid) */
  --bg-primary: #181818;
  --bg-sidebar: #1f1f1f;
  --bg-editor: #151515;
  --bg-tabs: #1d1d1d;
  --bg-tab-active: #151515;
  --bg-tab-inactive: #222222;
  --bg-terminal: #0c0c0c;
  --bg-hover: #2d2d2d;
  --border-color: #323232;
  
  /* Text Colors */
  --text-normal: #cfd2d9;
  --text-muted: #787b80;
  --text-bright: #ffffff;
  
  /* Syntax Highlighting (C++ Focus) */
  --syntax-keyword: #cc7832; /* Orange */
  --syntax-type: #299999;    /* Teal */
  --syntax-string: #6a8759;  /* Green */
  --syntax-number: #6897bb;  /* Ice Blue */
  --syntax-comment: #808080; /* Grey */
  --syntax-preproc: #bbb529; /* Olive Yellow */
  --syntax-function: #ffc66d;/* Light Yellow */
  
  /* UI Accents */
  --accent-blue: #389fd6;
  --accent-orange: #e16c2c;
  --accent-green: #4f852f;
  --accent-border: #4e5157;
  
  /* Typography */
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Outfit', 'Inter', sans-serif;
  
  /* Spacing */
  --sidebar-width: 260px;
  --tab-height: 40px;
  --statusbar-height: 25px;
}

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

html, body {
  height: 100%;
  background-color: var(--bg-primary);
  color: var(--text-normal);
  font-family: var(--font-sans);
  overflow: hidden;
  font-size: 14px;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--text-bright);
  text-decoration: underline;
}

ul {
  list-style: none;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-editor);
}

::-webkit-scrollbar-thumb {
  background: #3e3e3e;
  border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
  background: #4e4e4e;
}

/* --- IDE LAYOUT CONTAINER --- */
.ide-container {
  display: grid;
  grid-template-rows: 1fr var(--statusbar-height);
  height: 100vh;
  width: 100vw;
}

.ide-main {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  height: calc(100vh - var(--statusbar-height));
  position: relative;
}

/* --- SIDEBAR (FILE EXPLORER) --- */
.ide-sidebar {
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  user-select: none;
  z-index: 10;
}

.sidebar-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h3 {
  font-family: var(--font-sans);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 700;
}

.sidebar-icons {
  display: flex;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.explorer-tree {
  padding: 10px 0;
  flex-grow: 1;
  overflow-y: auto;
}

.tree-folder {
  margin-bottom: 8px;
}

.tree-folder-title {
  display: flex;
  align-items: center;
  padding: 4px 16px;
  font-weight: 600;
  color: var(--text-normal);
  cursor: pointer;
  gap: 6px;
}

.tree-folder-title:hover {
  background-color: var(--bg-hover);
}

.tree-folder-icon {
  transition: transform 0.2s ease;
  color: var(--syntax-keyword);
}

.tree-folder.open .tree-folder-icon {
  transform: rotate(90deg);
}

.tree-files {
  padding-left: 20px;
  display: block;
}

.tree-folder.collapsed .tree-files {
  display: none;
}

.tree-file-item {
  display: flex;
  align-items: center;
  padding: 5px 16px;
  cursor: pointer;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border-left: 2px solid transparent;
  transition: background-color 0.15s, color 0.15s;
}

.tree-file-item:hover {
  background-color: var(--bg-hover);
  color: var(--text-normal);
}

.tree-file-item.active {
  background-color: #2b2d30;
  color: var(--text-bright);
  border-left-color: var(--accent-blue);
}

.file-icon {
  width: 14px;
  height: 14px;
  display: inline-block;
  text-align: center;
  line-height: 14px;
}

/* File specific colors */
.icon-cpp { color: #f34b7d; font-weight: bold; }
.icon-h { color: #5c2d91; font-weight: bold; }
.icon-md { color: #007acc; font-weight: bold; }
.icon-json { color: #f1e05a; font-weight: bold; }
.icon-yml { color: #cb171e; font-weight: bold; }

/* --- EDITOR PANEL --- */
.ide-editor-panel {
  background-color: var(--bg-editor);
  display: grid;
  grid-template-rows: var(--tab-height) 1fr;
  height: 100%;
  overflow: hidden;
  position: relative;
}

/* Tab Bar */
.editor-tabs-bar {
  background-color: var(--bg-tabs);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  overflow-x: auto;
  scrollbar-width: none; /* Firefox */
}

.editor-tabs-bar::-webkit-scrollbar {
  display: none; /* Safari & Chrome */
}

.editor-tab {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 16px;
  background-color: var(--bg-tab-inactive);
  border-right: 1px solid var(--border-color);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  gap: 8px;
  user-select: none;
  transition: background-color 0.15s, color 0.15s;
}

.editor-tab:hover {
  background-color: var(--bg-hover);
  color: var(--text-normal);
}

.editor-tab.active {
  background-color: var(--bg-tab-active);
  color: var(--text-bright);
  border-top: 2px solid var(--accent-orange);
}

.tab-close {
  font-size: 0.75rem;
  border-radius: 50%;
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s;
}

.tab-close:hover {
  background-color: rgba(255,255,255,0.15);
  color: #ff5f56;
}

/* Editor Workspace */
.editor-workspace {
  position: relative;
  overflow-y: auto;
  height: 100%;
}

.editor-section {
  display: none;
  min-height: 100%;
  padding: 24px 32px;
  animation: fadeIn 0.25s ease-out;
}

.editor-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- EDITOR LAYOUT (Line Numbers + Content) --- */
.editor-code-container {
  display: flex;
  font-family: var(--font-mono);
  line-height: 1.6;
  font-size: 0.95rem;
}

.line-numbers {
  text-align: right;
  padding-right: 20px;
  color: #3b3f42;
  user-select: none;
  border-right: 1px solid #232323;
  min-width: 40px;
}

.code-content {
  padding-left: 20px;
  flex-grow: 1;
  white-space: pre-wrap;
  color: var(--text-normal);
}

/* --- HERO COMPONENT --- */
.hero-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.status-badge-container {
  margin-bottom: 20px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(79, 133, 47, 0.15);
  border: 1px solid var(--accent-green);
  color: #a3e635;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: #a3e635;
  border-radius: 50%;
  box-shadow: 0 0 8px #a3e635;
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.hero-wrapper h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text-bright);
  margin-bottom: 8px;
  font-family: var(--font-sans);
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--syntax-keyword);
  margin-bottom: 24px;
}

.hero-summary {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-normal);
  margin-bottom: 30px;
}

/* --- SKILLS & TECH STACK GRID --- */
.skills-section-container {
  max-width: 900px;
  margin: 0 auto;
}

.section-title-ide {
  font-family: var(--font-mono);
  color: var(--syntax-comment);
  margin-bottom: 20px;
  font-size: 1.2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.skill-card {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 20px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.skill-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-blue);
  background-color: rgba(255, 255, 255, 0.03);
}

.skill-card h4 {
  font-family: var(--font-mono);
  color: var(--syntax-function);
  font-size: 1rem;
  margin-bottom: 12px;
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-badge {
  background-color: var(--bg-hover);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-normal);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  transition: all 0.15s ease;
}

.skill-badge:hover {
  border-color: var(--accent-orange);
  color: var(--text-bright);
}

/* --- FEATURED PROJECTS --- */
.projects-container {
  max-width: 900px;
  margin: 0 auto;
}

.filter-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: var(--bg-tabs);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-normal);
}

.filter-btn.active {
  background-color: rgba(225, 108, 44, 0.15);
  border-color: var(--accent-orange);
  color: #ff9e64;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.project-card {
  background-color: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 24px;
  transition: border-color 0.25s, transform 0.25s;
}

.project-card:hover {
  border-color: var(--accent-orange);
  transform: translateY(-2px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.project-header h3 {
  font-family: var(--font-sans);
  color: var(--text-bright);
  font-size: 1.3rem;
}

.project-links {
  display: flex;
  gap: 12px;
  font-size: 1.1rem;
}

.project-description {
  color: var(--text-normal);
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-architecture {
  background-color: rgba(0, 0, 0, 0.2);
  border-left: 3px solid var(--accent-blue);
  padding: 12px 16px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #a9b7c6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* --- INTERACTIVE TERMINAL PANEL --- */
.terminal-wrapper {
  background-color: var(--bg-terminal);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  height: 100%;
  display: grid;
  grid-template-rows: 32px 1fr;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.terminal-header {
  background-color: #1e1e1e;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 16px;
  justify-content: space-between;
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-dot-group {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.terminal-body {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  overflow-y: auto;
  color: #a9b7c6;
  line-height: 1.5;
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.terminal-prompt {
  color: var(--syntax-string);
}

.terminal-cmd {
  color: var(--text-bright);
}

.terminal-output {
  margin-bottom: 16px;
  color: var(--text-normal);
  white-space: pre-wrap;
}

.run-btn-container {
  margin-top: 15px;
}

.terminal-run-btn {
  background-color: var(--accent-green);
  border: none;
  color: var(--text-bright);
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  transition: filter 0.15s ease;
}

.terminal-run-btn:hover {
  filter: brightness(1.15);
}

/* --- CONTACT & LINKS PANEL --- */
.contact-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-card {
  background-color: rgba(255,255,255,0.01);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 8px;
}

.contact-header-title {
  font-family: var(--font-sans);
  color: var(--text-bright);
  font-size: 2rem;
  margin-bottom: 16px;
}

.contact-desc {
  font-size: 1.1rem;
  color: var(--text-normal);
  margin-bottom: 30px;
  line-height: 1.6;
}

.contact-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.contact-link-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-hover);
  transition: all 0.2s ease;
  color: var(--text-normal);
}

.contact-link-item:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  text-decoration: none;
  transform: translateY(-2px);
}

.contact-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* --- STATUS BAR --- */
.ide-statusbar {
  background-color: #2b2d30;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 16px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-muted);
  user-select: none;
}

.statusbar-left, .statusbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.statusbar-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.statusbar-item.branch {
  color: var(--text-normal);
}

/* --- MOBILE & HAMBURGER BAR --- */
.mobile-nav-bar {
  display: none;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  height: 48px;
  align-items: center;
  padding: 0 16px;
  justify-content: space-between;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--text-normal);
  font-size: 1.5rem;
  cursor: pointer;
}

.mobile-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-orange);
}

/* --- MEDIA QUERIES --- */
@media (max-width: 768px) {
  html, body {
    overflow: auto;
  }

  .ide-container {
    grid-template-rows: 1fr;
    height: auto;
  }

  .ide-main {
    grid-template-columns: 1fr;
    height: auto;
    padding-top: 48px;
  }

  .mobile-nav-bar {
    display: flex;
  }

  .ide-sidebar {
    position: fixed;
    top: 48px;
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - 48px);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 10px 0 20px rgba(0,0,0,0.3);
  }

  .ide-sidebar.open {
    transform: translateX(0);
  }

  .ide-editor-panel {
    grid-template-rows: var(--tab-height) auto;
    height: auto;
  }

  .editor-workspace {
    overflow-y: visible;
    height: auto;
  }

  .editor-section {
    padding: 16px;
  }

  .hero-wrapper h1 {
    font-size: 2.2rem;
  }

  .ide-statusbar {
    display: none;
  }
}

/* --- SYNTAX COLORS UTILITIES FOR SNIPPETS --- */
.kwd { color: var(--syntax-keyword); font-weight: bold; }
.typ { color: var(--syntax-type); }
.str { color: var(--syntax-string); }
.num { color: var(--syntax-number); }
.com { color: var(--syntax-comment); font-style: italic; }
.pre { color: var(--syntax-preproc); }
.fun { color: var(--syntax-function); }
.pun { color: var(--text-normal); }