@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --bg-main: #011627;
  --bg-main-glass: rgba(1, 22, 39, 0.85);
  --bg-darker: #011221;
  --bg-darker-glass: rgba(1, 18, 33, 0.9);
  --border-color: rgba(30, 45, 61, 0.6);
  --border-glow: rgba(67, 217, 173, 0.15);
  --text-primary: #ffffff;
  --text-secondary: #607b96;
  --accent-orange: #fea55f;
  --accent-blue: #4d5bce;
  --accent-teal: #43d9ad;
  --accent-pink: #e99287;
  --font-main: 'Plus Jakarta Sans', sans-serif;
  --font-code: 'Fira Code', monospace;
  --shadow-color: rgba(0,0,0,0.5);
  --shadow-glow: rgba(77, 91, 206, 0.2);
  --btn-bg: #1c2b3a;
  --btn-text: #ffffff;
}

[data-theme="light"] {
  --bg-main: #fdfdfd;
  --bg-main-glass: rgba(253, 253, 253, 0.85);
  --bg-darker: #f4f5f5;
  --bg-darker-glass: rgba(244, 245, 245, 0.9);
  --border-color: rgba(213, 216, 220, 0.8);
  --border-glow: rgba(17, 120, 100, 0.1);
  --text-primary: #1c2833;
  --text-secondary: #5d6d7e;
  --accent-orange: #d35400;
  --accent-blue: #2980b9;
  --accent-teal: #117864;
  --accent-pink: #c0392b;
  --font-main: 'Plus Jakarta Sans', sans-serif;
  --font-code: 'Fira Code', monospace;
  --shadow-color: rgba(0,0,0,0.06);
  --shadow-glow: rgba(41, 128, 185, 0.05);
  --btn-bg: #e5e9f0;
  --btn-text: #1c2833;
}

* {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

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

html,
body {
  background-color: var(--bg-darker);
  color: var(--text-secondary);
  font-family: var(--font-main);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  overflow-y: hidden;
  font-size: 15px;
  position: relative;
}

/* Glowing background blobs */
.glow-blob {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(140px);
  opacity: 0.2;
  transition: all 0.5s ease;
  animation: float 20s infinite alternate ease-in-out;
}
[data-theme="light"] .glow-blob {
  opacity: 0.08;
  filter: blur(160px);
}
.glow-teal {
  background: var(--accent-teal);
  width: 500px;
  height: 500px;
}
.glow-purple {
  background: var(--accent-blue);
  width: 600px;
  height: 600px;
}
.glow-orange {
  background: var(--accent-orange);
  width: 450px;
  height: 450px;
}
@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -60px) scale(1.1); }
  100% { transform: translate(-20px, 30px) scale(0.95); }
}

a { text-decoration: none; color: inherit; }

.app-container {
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-main-glass);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 10;
}

@media (min-width: 1024px) {
  .app-container {
    width: 95vw;
    height: 90vh;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 50px var(--shadow-color), 0 0 40px var(--shadow-glow);
  }
  [data-theme="light"] .app-container {
    border: 1px solid rgba(0, 0, 0, 0.05);
  }
}

.app-header {
  height: 50px;
  display: flex;
  border-bottom: 1px solid var(--border-color);
  align-items: center;
  flex-shrink: 0;
  overflow-x: auto;
  font-family: var(--font-code);
  position: relative;
}

.app-header::-webkit-scrollbar { display: none; }

.brand {
  width: 250px;
  padding: 0 1.5rem;
  border-right: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 500;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.nav-tabs {
  display: flex;
  height: 100%;
  flex: 1;
}

#menu-chat-toggle {
  display: none !important;
}

.tab {
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all 0.3s;
  white-space: nowrap;
}

.tab.active {
  color: var(--text-primary);
  border-bottom: 2px solid var(--accent-orange);
  background: rgba(254, 165, 95, 0.04);
}

.tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}
[data-theme="light"] .tab:hover {
  background: rgba(0, 0, 0, 0.02);
}

.tab-contact {
  margin-left: auto;
  border-left: 1px solid var(--border-color);
  border-right: none;
}

.app-main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.sidebar {
  width: 250px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  font-family: var(--font-code);
  background-color: var(--bg-darker-glass);
}

.sidebar-folder {
  border-bottom: 1px solid var(--border-color);
}

.folder-title {
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
  font-weight: 500;
  transition: opacity 0.2s;
}
.folder-title:hover {
  opacity: 0.8;
}

.folder-title i, .folder-title svg {
  font-size: 0.8rem;
  transition: transform 0.3s;
}

.folder-title.closed i, .folder-title.closed svg {
  transform: rotate(-90deg);
}

.folder-content {
  padding: 0.5rem 0;
  display: flex;
  flex-direction: column;
}

.folder-content.hidden {
  display: none;
}

.sidebar-item {
  padding: 0.4rem 1rem 0.4rem 2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}

button.sidebar-item {
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-code);
  font-size: 0.95rem;
  padding: 0.5rem 1rem 0.5rem 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-item:hover, .sidebar-item.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}
[data-theme="light"] .sidebar-item:hover, [data-theme="light"] .sidebar-item.active {
  background: rgba(0, 0, 0, 0.02);
}

.page-content {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

.pane-left {
  flex: 1;
  padding: 3rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.pane-left.flex-center {
  justify-content: center;
}

.pane-right {
  flex: 1;
  border-left: 1px solid var(--border-color);
  padding: 3rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pane-right.code-section {
  background: rgba(1, 18, 33, 0.4);
}

.contact-form {
  max-width: 400px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.8rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  background-color: rgba(1, 20, 35, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-code);
  font-size: 15px;
  transition: all 0.3s ease;
}
[data-theme="light"] .form-control {
  background-color: rgba(255, 255, 255, 0.6);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-teal);
  color: var(--text-primary);
  box-shadow: 0 0 12px rgba(67, 217, 173, 0.25);
}

.app-btn {
  background-color: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1.4rem;
  border-radius: 8px;
  font-family: var(--font-code);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-block;
  margin-top: 10px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.app-btn:hover {
  background-color: var(--accent-orange);
  color: var(--bg-main);
  border-color: var(--accent-orange);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(254, 165, 95, 0.3);
}

.code-wrapper {
  display: flex;
  font-family: var(--font-code);
  line-height: 1.6;
  font-size: 15px;
}

.line-numbers {
  padding-right: 2rem;
  text-align: right;
  color: var(--text-secondary);
  opacity: 0.5;
  user-select: none;
}

.code-lines {
  color: var(--text-secondary);
  white-space: pre;
}

.c-keyword { color: #c678dd; } 
.c-blue { color: #61afef; } 
.c-string { color: var(--accent-teal); } 
.c-orange { color: var(--accent-orange); } 
.c-pink { color: var(--accent-pink); }
.c-comment { color: var(--text-secondary); font-style: italic; }

/* Light mode: code section & syntax overrides */
[data-theme="light"] .pane-right.code-section {
  background: #F0F2F5;
}

[data-theme="light"] .code-lines {
  color: #3B4252;
}

[data-theme="light"] .line-numbers {
  color: #9CA3AF;
}

[data-theme="light"] .c-keyword { color: #8B5CF6; }
[data-theme="light"] .c-blue { color: #2563EB; }
[data-theme="light"] .c-string { color: #059669; }
[data-theme="light"] .c-orange { color: #D97706; }
[data-theme="light"] .c-pink { color: #DC2626; }
[data-theme="light"] .c-comment { color: #9CA3AF; }

/* Skill cards */
.skill-card {
  background: var(--bg-main-glass);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

[data-theme="light"] .skill-card {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
}

.skill-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.skill-card:nth-of-type(1):hover {
  border-color: var(--accent-blue);
  box-shadow: 0 10px 25px rgba(77, 91, 206, 0.15);
}

.skill-card:nth-of-type(2):hover {
  border-color: var(--accent-teal);
  box-shadow: 0 10px 25px rgba(67, 217, 173, 0.15);
}

/* Code blocks (index.html snippets) */
.code-block {
  background: rgba(1, 22, 39, 0.4);
}

[data-theme="light"] .code-block {
  background: #F0F2F5;
  color: #3B4252 !important;
}

/* Override inline syntax colors in light mode */
[data-theme="light"] .code-block span[style*="color:#C678DD"],
[data-theme="light"] .code-block span[style*="color: #C678DD"] {
  color: #8B5CF6 !important;
}
[data-theme="light"] .code-block span[style*="color:#61AFEF"],
[data-theme="light"] .code-block span[style*="color: #61AFEF"] {
  color: #2563EB !important;
}
[data-theme="light"] .code-block span[style*="color:#E5C07B"],
[data-theme="light"] .code-block span[style*="color: #E5C07B"] {
  color: #D97706 !important;
}
[data-theme="light"] .code-block span[style*="color:#D19A66"],
[data-theme="light"] .code-block span[style*="color: #D19A66"] {
  color: #B45309 !important;
}
[data-theme="light"] .code-block span[style*="color:#98C379"],
[data-theme="light"] .code-block span[style*="color: #98C379"] {
  color: #059669 !important;
}


.hello-title {
  color: var(--text-primary);
  font-size: 4rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.hello-subtitle {
  color: var(--accent-blue);
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: 3rem;
}

.hello-comment {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.hello-code span.key { color: var(--accent-blue); }
.hello-code span.var { color: var(--accent-teal); }
.hello-code span.str { color: var(--accent-orange); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  padding: 2rem;
}

.proj-card {
  background: var(--bg-darker-glass);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.proj-card:hover {
  border-color: var(--accent-orange);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3), 0 0 15px rgba(254, 165, 95, 0.15);
}

.proj-card:hover .mockup-img {
  transform: scale(1.05);
}

.filter-btn {
  border: none;
  background: transparent;
  width: auto;
  text-align: left;
  cursor: pointer;
  padding: 0.5rem 1rem !important;
  margin: 0.1rem 0.8rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-family: var(--font-code);
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  color: var(--text-primary) !important;
  background: rgba(255, 255, 255, 0.03) !important;
}
[data-theme="light"] .filter-btn:hover {
  background: rgba(0, 0, 0, 0.03) !important;
}

.filter-btn.active {
  color: var(--text-primary) !important;
  background: rgba(254, 165, 95, 0.08) !important;
  font-weight: 500;
}
[data-theme="light"] .filter-btn.active {
  background: rgba(211, 84, 0, 0.08) !important;
}

.proj-body {
  padding: 1.5rem;
}

.proj-desc {
  margin: 1rem 0;
  line-height: 1.5;
}

.app-footer {
  height: 50px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.footer-social-text {
  padding: 0 1.5rem;
  color: var(--text-secondary);
  border-right: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  align-items: center;
}

.footer-icon {
  width: 120px;
  height: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  border-right: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: all 0.3s;
}

.footer-icon:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.chat-footer-text {
  font-size: 0.85rem;
  animation: blink 2s infinite;
  color: var(--accent-orange);
  text-shadow: 0 0 5px var(--accent-orange);
  margin-left: 8px;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.footer-github {
  margin-left: auto;
  margin-right: 80px;
  padding: 0 1.5rem;
  border-left: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  align-items: center;
  color: var(--text-secondary);
  gap: 0.5rem;
  transition: color 0.3s;
}

.footer-github:hover {
  color: var(--text-primary);
}

/* ============================================ */
/* HAMBURGER MENU BUTTON                        */
/* ============================================ */
.hamburger-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 0 1rem;
  height: 100%;
  align-items: center;
  justify-content: center;
  transition: color 0.3s;
  flex-shrink: 0;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.hamburger-btn:hover { color: var(--text-primary); }

/* Mobile nav overlay */
.mobile-nav-overlay {
  display: none !important;
}

.nav-tabs.mobile-open {
  display: flex !important;
  flex-direction: column;
  position: fixed;
  top: 50px; right: 0;
  width: 260px;
  height: calc(100vh - 50px);
  background: var(--bg-darker);
  border-left: 1px solid var(--border-color);
  z-index: 100000 !important;
  padding-top: 0;
  animation: slideInRight 0.3s ease;
  overflow-y: auto;
  will-change: transform;
}
.nav-tabs.mobile-open .tab {
  border-right: none;
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  justify-content: flex-start;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.nav-tabs.mobile-open .tab.is-loading {
  color: var(--accent-orange);
  background: rgba(254, 165, 95, 0.08);
}
.nav-tabs.mobile-open .tab-contact {
  margin-left: 0;
  border-left: none;
}
.mobile-nav-close {
  display: none;
  position: fixed;
  top: 0.8rem;
  right: 210px;
  z-index: 10000;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}
.mobile-nav-close.open { display: block; }

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

/* ============================================ */
/* SIDEBAR TOGGLE (MOBILE)                      */
/* ============================================ */
.sidebar-toggle {
  display: none;
  width: 100%;
  padding: 0.6rem 1rem;
  background: var(--bg-darker);
  border: none;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-code);
  font-size: 0.85rem;
  cursor: pointer;
  text-align: left;
  gap: 0.5rem;
  align-items: center;
}
.sidebar-toggle i, .sidebar-toggle svg {
  transition: transform 0.3s;
  font-size: 0.7rem;
}
.sidebar-toggle.collapsed i, .sidebar-toggle.collapsed svg {
  transform: rotate(-90deg);
}

/* ============================================ */
/* RESPONSIVE: TABLET (max-width: 1024px)       */
/* ============================================ */
@media (max-width: 1024px) {
  .app-container {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    box-shadow: none;
  }

  .brand { width: 200px; padding: 0 1rem; }
  .tab { padding: 0 1.2rem; font-size: 0.85rem; }

  .sidebar { width: 200px; }

  .pane-left, .pane-right { padding: 2rem; }

  .hello-name,
  .hello-title { font-size: 2.8rem !important; }
  .hello-role,
  .hello-subtitle { font-size: 1.5rem !important; }
}

/* ============================================ */
/* RESPONSIVE: MOBILE/TABLET (max-width: 768px) */
/* ============================================ */
@media (max-width: 1024px) {
  html,
  body {
    display: block !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    height: auto !important;
    min-height: 100vh !important;
  }

  .app-container {
    width: 100vw;
    height: auto;
    min-height: 100vh;
    border-radius: 0;
    box-shadow: none;
    border: none;
    overflow-x: hidden !important; /* Block horizontal scroll on container children */
  }

  /* Header */
  .app-header {
    height: 50px;
    flex-wrap: nowrap;
    position: sticky;
    top: 0;
    z-index: 100005 !important;
    background: var(--bg-main);
    overflow: visible !important; /* Enable hit-testing outside header bounds */
  }
  .brand {
    width: auto;
    flex: 1;
    border-right: none;
    padding: 0 1rem;
    font-size: 0.9rem;
  }
  .hamburger-btn { display: flex; }
  .nav-tabs { display: none; }

  /* Main */
  .app-main {
    flex-direction: column;
    overflow: visible;
    min-height: 0;
    flex: 1;
  }

  /* Sidebar */
  .sidebar {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    overflow-y: visible;
    max-height: none;
  }
  .sidebar-toggle { display: flex; }
  .sidebar.collapsed .sidebar-folder { display: none; }

  /* Page Content */
  .page-content {
    flex-direction: column !important;
    overflow-y: auto !important;
    overflow-x: hidden;
    min-height: 300px;
  }

  .pane-left, .pane-right {
    padding: 1.5rem !important;
    border-left: none !important;
    overflow-y: visible !important;
    flex: none !important;
    width: 100% !important;
  }
  .pane-right {
    border-top: 1px solid var(--border-color);
  }

  /* Hello page */
  .hello-name,
  .hello-title { font-size: 2.2rem !important; }
  .hello-role,
  .hello-subtitle { font-size: 1.2rem !important; margin-bottom: 1.5rem !important; }

  /* Snake game */
  .game-section {
    padding: 1.5rem !important;
  }
  .snake-container {
    flex-direction: column !important;
    align-items: center !important;
    padding: 1.8rem 1.5rem !important;
    gap: 1.5rem !important;
    width: 100% !important;
    max-width: 320px !important;
    margin: 0 auto !important;
  }
  .snake-screen-wrapper {
    width: 240px !important;
    height: 380px !important;
    margin: 0 auto !important;
    box-shadow: inset 0px 0px 30px rgba(0,0,0,0.95), 0 0 15px rgba(67, 217, 173, 0.2) !important;
    border: 2px solid rgba(67, 217, 173, 0.3) !important;
  }
  #snakeGame {
    width: 100% !important;
    height: 100% !important;
  }
  .snake-hud-wrapper {
    width: 240px !important;
    height: auto !important;
    margin-top: 0.2rem !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 1.2rem !important;
  }
  .snake-hud-wrapper > div:first-child {
    background: rgba(1, 20, 35, 0.3) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 10px !important;
    padding: 1rem !important;
    width: 100% !important;
  }
  .snake-hud-wrapper > div:nth-child(2) {
    margin-top: 0 !important;
    padding: 0.8rem 0.5rem !important;
    background: rgba(1, 20, 35, 0.3) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 10px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    width: 100% !important;
  }
  .snake-hud-wrapper > div:last-child {
    margin-top: 0 !important;
    justify-content: center !important;
  }
  .d-pad-btn {
    width: 52px !important;
    height: 38px !important;
    background: #011627 !important;
    border: 1px solid var(--accent-orange) !important;
    color: var(--accent-orange) !important;
    font-size: 1.1rem !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3) !important;
    transition: all 0.2s;
  }
  .d-pad-btn:active {
    background: var(--accent-orange) !important;
    color: var(--bg-main) !important;
    box-shadow: inset 0px 2px 5px rgba(0,0,0,0.5) !important;
  }
  #food-left-grid {
    gap: 0.6rem !important;
  }
  .food-dot {
    width: 12px !important;
    height: 12px !important;
  }

  /* Code sections */
  .code-wrapper {
    font-size: 12px;
    overflow-x: auto;
  }
  .code-lines { white-space: pre-wrap; word-break: break-all; }
  .line-numbers { padding-right: 1rem; }

  /* Code snippets view (index) */
  #code-snippets-view {
    width: 100% !important;
    height: 100% !important;
    padding: 1.5rem !important;
  }

  /* Projects grid */
  .projects-grid {
    grid-template-columns: 1fr !important;
    padding: 1rem !important;
    gap: 1rem !important;
  }

  /* Contact form */
  .contact-form {
    max-width: 100%;
    width: 100%;
  }

  /* Footer */
  .app-footer {
    height: 50px;
    min-height: 50px;
    flex-wrap: nowrap;
    position: relative; /* Not sticky on mobile/tablet */
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    z-index: 50;
    width: 100%;
  }
  .footer-social-text {
    padding: 0;
    font-size: 0.8rem;
    white-space: nowrap;
    border: none;
    height: auto;
    display: inline-block;
  }
  .footer-icon {
    width: auto;
    height: auto;
    border: none;
    font-size: 1.1rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    margin-left: 0.5rem;
  }
  .footer-github {
    margin-left: auto;
    margin-right: 0 !important;
    padding: 0;
    border: none;
    height: auto;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
  }

  /* Skills grid */
  .skill-card {
    padding: 1rem !important;
  }
  .skill-card span {
    font-size: 0.75rem !important;
    padding: 0.3rem 0.6rem !important;
  }

  /* Project modal */
  #project-modal > div {
    width: 95% !important;
    max-height: 85vh !important;
  }
}

/* ============================================ */
/* RESPONSIVE: SMALL MOBILE (max-width: 480px)  */
/* ============================================ */
@media (max-width: 480px) {
  body { font-size: 13px; }

  .brand { font-size: 0.8rem; }

  .hello-name,
  .hello-title { font-size: 1.7rem !important; }
  .hello-role,
  .hello-subtitle { font-size: 1rem !important; }
  .hello-subtext { font-size: 0.8rem; }
  .hello-subtext .github-link { font-size: 0.75rem !important; }

  .pane-left, .pane-right { padding: 1rem !important; }

  .code-wrapper { font-size: 11px; }

  .projects-grid {
    grid-template-columns: 1fr !important;
  }

  .footer-github {
    font-size: 0.75rem;
  }
  .footer-icon { width: auto; }

  .form-control { font-size: 14px; padding: 0.7rem; }
  .app-btn { font-size: 0.85rem; padding: 0.7rem 1rem; }
}

/* ============================================ */
/* RESPONSIVE: LANDSCAPE PHONE FIX              */
/* ============================================ */
@media (max-height: 500px) and (orientation: landscape) {
  body { overflow: auto; height: auto; }
  .app-container { height: auto; min-height: 100vh; }
  .app-header { position: sticky; top: 0; z-index: 100; background: var(--bg-main); }
  .snake-container { transform: scale(0.7); transform-origin: center; }
}

/* ============================================ */
/* SCROLLBAR                                    */
/* ============================================ */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-main); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* Overrides for Chatbot matching IDE theme */
/* Modern Chatbot Styling */
#chatWidget {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99999;
}

.chat-toggle {
  display: flex !important;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent-orange);
  color: var(--bg-main) !important;
  border: none;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 8px 32px rgba(243, 92, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  position: relative;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 100000;
}
.chat-toggle-text {
  display: none;
}
.chat-toggle:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 12px 40px rgba(243, 92, 0, 0.6);
}
.chat-toggle-pulse {
  position: absolute;
  top: -4px; left: -4px; right: -4px; bottom: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent-orange);
  opacity: 0.5;
  animation: chatPulse 2s infinite;
  pointer-events: none;
}
@keyframes chatPulse {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.3); opacity: 0; }
}

.chat-window {
  position: fixed;
  bottom: 7.5rem;
  right: 2rem;
  width: 380px;
  height: 580px;
  max-height: calc(100vh - 10rem);
  background: rgba(1, 12, 21, 0.85);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.6), 0 0 50px rgba(243, 92, 0, 0.05);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.9) translateY(20px);
  transform-origin: bottom right;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99999;
}
.chat-window.open {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1) translateY(0);
}

.chat-header {
  padding: 1.2rem;
  background: rgba(1, 8, 14, 0.9);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.chat-header-info {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.chat-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-orange), #ff7e47);
  color: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(243, 92, 0, 0.3);
}
.chat-status {
  display: block;
  font-size: 0.8rem;
  color: #27c93f;
  font-weight: 600;
  margin-top: 2px;
}
.chat-close {
  background: rgba(255,255,255,0.05);
  border: none;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
}
.chat-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.chat-messages {
  flex: 1;
  padding: 1.2rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  scrollbar-width: thin;
}

.chat-message {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: messageFadeIn 0.3s ease-out forwards;
}
@keyframes messageFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-message.bot { align-self: flex-start; }
.chat-message.user { align-self: flex-end; }

.chat-bubble {
  padding: 0.9rem 1.1rem;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  font-family: var(--font-main);
}
.chat-message.bot .chat-bubble {
  background: rgba(30, 45, 61, 0.4);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-top-left-radius: 4px;
}
.chat-message.user .chat-bubble {
  background: var(--accent-orange);
  color: var(--bg-main);
  font-weight: 500;
  border-top-right-radius: 4px;
  box-shadow: 0 4px 12px rgba(243, 92, 0, 0.2);
}

.chat-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.8rem 1.2rem;
  border-top: 1px dashed var(--border-color);
  background: rgba(1, 8, 14, 0.4);
}
.chat-quick-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 0.9rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.chat-quick-btn:hover {
  background: rgba(243, 92, 0, 0.08);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-1px);
}

.chat-input-area {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 0.8rem;
  background: rgba(1, 8, 14, 0.9);
}
.chat-input-area input {
  flex: 1;
  background: rgba(2, 12, 27, 0.8);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1.2rem;
  border-radius: 24px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: border-color 0.3s;
}
.chat-input-area input:focus {
  outline: none;
  border-color: var(--accent-orange);
}
.chat-input-area button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-orange);
  border: none;
  color: var(--bg-main) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 12px rgba(243, 92, 0, 0.3);
}
.chat-input-area button:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 16px rgba(243, 92, 0, 0.5);
}

@media (max-width: 1024px) {
  #chatWidget {
    position: relative !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    width: 100% !important;
    margin: 2rem auto 3rem auto !important; /* Spaced nicely below container and page bottom */
    bottom: auto !important;
    right: auto !important;
    z-index: 1000 !important;
  }
  .chat-toggle {
    display: flex !important;
    width: calc(100% - 3rem) !important;
    max-width: 320px !important;
    height: 48px !important;
    border-radius: 8px !important;
    background: var(--accent-orange) !important;
    color: var(--bg-main) !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 0.95rem !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    cursor: pointer !important;
    box-shadow: 0 4px 16px rgba(243, 92, 0, 0.25) !important;
    position: relative !important;
    transition: all 0.3s ease !important;
    gap: 0.5rem !important;
  }
  .chat-toggle-text {
    display: inline !important; /* Show helper text label */
  }
  .chat-toggle-pulse {
    display: none !important; /* Hide pulsing circle */
  }
  #menu-chat-toggle {
    display: flex !important; /* Show glowing help tab in hamburger menu */
  }
  .chat-window {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
    border: none;
    bottom: 0 !important;
    right: 0 !important;
    z-index: 1000000 !important; /* Ensure chat window is above header and drawer */
  }
}

/* Snake UI D-Pad & Food dots Styling */
.d-pad-btn {
    background: #011221;
    color: white;
    border: none;
    border-radius: 4px;
    width: 32px;
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: inset 0px -2px 0px rgba(0,0,0,0.5);
    transition: 0.1s;
}
.d-pad-btn:active {
    box-shadow: inset 0px 2px 0px rgba(0,0,0,0.8);
    background: #011627;
}

.food-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-orange);
    opacity: 0.3;
    transition: all 0.3s;
}
.food-dot.active {
    opacity: 1 !important;
    background: var(--accent-orange);
    box-shadow: 0 0 10px var(--accent-orange);
}

/* Modern Project Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(1, 18, 33, 0.75);
  z-index: 99999;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem;
}

.modal-overlay.open {
  display: flex !important;
}

.modal-card {
  background: var(--bg-main-glass);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 100%;
  max-width: 850px;
  max-height: 85vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 60px rgba(0,0,0,0.6), 0 0 50px rgba(77, 91, 206, 0.1);
  animation: modalScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 1.2rem 1.8rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-darker-glass);
}

.modal-body {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .modal-body {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }
}

.modal-img-container {
  background: #011221;
  border: 1px solid var(--border-color);
  padding: 1.2rem;
  border-radius: 12px;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-img-container img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.modal-info {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.modal-info p {
  margin-bottom: 1rem;
}

.modal-info strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.4rem;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.5rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  color: var(--accent-pink);
}

/* Info boxes inside project modal */
.info-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
}

[data-theme="light"] .info-box {
  background: rgba(0, 0, 0, 0.01);
}

.info-box-title {
  font-family: var(--font-code);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-orange);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.info-box-content {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Metadata tag badge inside modal */
.meta-badge {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.2rem 0.6rem;
  font-family: var(--font-code);
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-secondary);
}
[data-theme="light"] .meta-badge {
  background: rgba(0, 0, 0, 0.03);
}

/* Modal Navigation Arrow Buttons */
.nav-arrow-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-arrow-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  box-shadow: 0 0 12px rgba(224, 108, 117, 0.25);
  transform: translateY(-1px);
}

.nav-arrow-btn:active {
  transform: translateY(1px);
}

[data-theme="light"] .nav-arrow-btn {
  background: rgba(0, 0, 0, 0.02);
}
[data-theme="light"] .nav-arrow-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* Developer Notes Terminal Console */
.developer-terminal {
  background: rgba(1, 10, 20, 0.45);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 0.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.terminal-header {
  background: rgba(1, 15, 30, 0.5);
  border-bottom: 1px solid var(--border-color);
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.terminal-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dots span:nth-child(1) { background: #ff5f56; }
.terminal-dots span:nth-child(2) { background: #ffbd2e; }
.terminal-dots span:nth-child(3) { background: #27c93f; }

.terminal-body {
  padding: 1.2rem;
  display: flex;
  gap: 1.2rem;
  font-family: var(--font-code);
  font-size: 0.85rem;
  line-height: 1.6;
}

.terminal-lines {
  color: rgba(255, 255, 255, 0.12);
  text-align: right;
  user-select: none;
  font-family: var(--font-code);
}

.terminal-content {
  color: var(--text-secondary);
  white-space: pre-line;
  font-family: var(--font-code);
}

[data-theme="light"] .developer-terminal {
  background: rgba(240, 244, 248, 0.5);
}
[data-theme="light"] .terminal-header {
  background: rgba(225, 230, 238, 0.6);
}
[data-theme="light"] .terminal-lines {
  color: rgba(0, 0, 0, 0.25);
}
[data-theme="light"] .terminal-content {
  color: var(--text-secondary);
}

/* ============================================ */
/* RESPONSIVE HEADER LOGO THEMING               */
/* ============================================ */
/* Default Dark Theme colors for inline SVG logo */
.logo-madeby {
  fill: #9ba8b8 !important;
  transition: fill 0.3s ease;
}
.logo-burak {
  fill: #ffffff !important;
  transition: fill 0.3s ease;
}
.logo-shield {
  fill: #011627 !important;
  stroke: rgba(255, 255, 255, 0.08) !important;
  transition: fill 0.3s ease, stroke 0.3s ease;
}
.logo-node-line {
  stroke: #ffffff !important;
  transition: stroke 0.3s ease;
}

/* Light Theme overrides for inline SVG logo */
[data-theme="light"] .logo-madeby {
  fill: #5d6d7e !important;
}
[data-theme="light"] .logo-burak {
  fill: #1c2833 !important;
}
[data-theme="light"] .logo-shield {
  fill: #f4f5f5 !important;
  stroke: rgba(0, 0, 0, 0.08) !important;
}
[data-theme="light"] .logo-node-line {
  stroke: #1c2833 !important;
}