/* Pure CSS System for Shafayat Hossain Portfolio */
:root {
  /* Light Theme Variables */
  --bg-page: #f0f4f8;
  --bg-card: #ffffff;
  --border-yellow: #ffd700;
  --text-name: #1a1a3a;
  --badge-bg: #1a1a3a;
  --badge-text: #ffffff;
  --text-bio: #334155;
  --social-icon: #1a1a3a;
  --social-icon-hover: #047857;
  --btn-bg: #1a1a3a;
  --btn-text: #ffffff;
  --btn-hover: #2d2d5a;
  --flyout-bg: #ffffff;
  --flyout-text: #1a1a3a;
  --flyout-hover: #f1f5f9;
  --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

html.dark {
  /* Dark Theme Variables matching exact screenshot */
  --bg-page: #222244;
  --bg-card: #1d1b3a;
  --border-yellow: #ffe500;
  --text-name: #ffffff;
  --badge-bg: #ffe500;
  --badge-text: #111827;
  --text-bio: #9ca3af;
  --social-icon: #ffe500;
  --social-icon-hover: #ffffff;
  --btn-bg: #ffe500;
  --btn-text: #111827;
  --btn-hover: #e6ce00;
  --flyout-bg: #1b1b36;
  --flyout-text: #ffffff;
  --flyout-hover: #2a2a4e;
  --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-name);
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
  position: relative;
  overflow-x: hidden;
}

/* Flex Container for centering card */
.page-container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

/* Profile Card Component */
.profile-card {
  background-color: var(--bg-card);
  border: 5px solid var(--border-yellow);
  border-radius: 36px;
  width: 100%;
  max-width: 720px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

@media (max-width: 640px) {
  .profile-card {
    border-radius: 28px;
    padding: 30px 20px;
    border-width: 4px;
  }
}

/* Avatar Circle */
.avatar-container {
  width: 120px;
  height: 120px;
  margin: 0 auto 20px auto;
  border-radius: 50%;
  border: 5px solid var(--border-yellow);
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: border-color 0.3s ease;
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Profile Name */
.profile-name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-name);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  transition: color 0.3s ease;
}

/* Pill Badge */
.badge {
  display: inline-block;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 24px;
  border-radius: 25px;
  margin-bottom: 24px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Description Text */
.profile-bio {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-bio);
  max-width: 580px;
  margin: 0 auto 30px auto;
  transition: color 0.3s ease;
}

/* Social Media Icons */
.social-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.social-icon {
  color: var(--social-icon);
  font-size: 1.5rem;
  text-decoration: none;
  transition: transform 0.2s ease, color 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.social-icon:hover {
  color: var(--social-icon-hover);
  transform: translateY(-2px);
}

/* Icon Buttons (Top-Left Hamburger & Top-Right Theme Toggle) */
.icon-btn {
  position: fixed;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background-color: var(--btn-bg);
  color: var(--btn-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
  z-index: 100;
}

.icon-btn:hover {
  background-color: var(--btn-hover);
  transform: scale(1.05);
}

.flyout-btn {
  top: 30px;
  left: 30px;
}

.theme-btn {
  top: 30px;
  right: 30px;
}

@media (max-width: 640px) {
  .flyout-btn {
    top: 16px;
    left: 16px;
    width: 44px;
    height: 44px;
  }
  .theme-btn {
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
  }
}

/* Flyout Navigation Menu Drawer */
.flyout-menu {
  position: fixed;
  top: 90px;
  left: 30px;
  width: 280px;
  background-color: var(--flyout-bg);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 20px;
  z-index: 90;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.flyout-menu.hidden {
  opacity: 0;
  transform: translateY(-10px);
  visibility: hidden;
  pointer-events: none;
}

.flyout-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--flyout-text);
  margin-bottom: 12px;
}

.menu-divider {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--border-yellow);
  margin: 12px 0 6px 8px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}


.flyout-list {
  list-style: none;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 5px;
}

.flyout-list::-webkit-scrollbar {
  width: 4px;
}

.flyout-list::-webkit-scrollbar-thumb {
  background: var(--border-yellow);
  border-radius: 4px;
}

.flyout-list li {
  margin-bottom: 4px;
}

.flyout-list a {
  display: block;
  padding: 8px 12px;
  color: var(--flyout-text);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.flyout-list a:hover {
  background-color: var(--flyout-hover);
}

@media (max-width: 640px) {
  .flyout-menu {
    top: 70px;
    left: 16px;
    width: calc(100vw - 32px);
    max-width: 300px;
  }
}

/* Floating Chat Bubble Button */
.chat-bubble-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  font-size: 1.5rem;
  z-index: 110;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  animation: pulse-subtle 3s infinite ease-in-out;
}

@keyframes pulse-subtle {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

.chat-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background-color: #ef4444;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-card);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.chat-badge.hidden {
  opacity: 0;
  transform: scale(0);
  pointer-events: none;
}

/* Live Chat Widget Modal */
.chat-widget {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 360px;
  height: 480px;
  background-color: var(--bg-card);
  border: 2px solid var(--border-yellow);
  border-radius: 24px;
  box-shadow: var(--shadow);
  z-index: 120;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.chat-widget.hidden {
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  visibility: hidden;
  pointer-events: none;
}

/* Chat Header */
.chat-header {
  background-color: rgba(0, 0, 0, 0.1);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-avatar-wrapper {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--border-yellow);
  overflow: hidden;
}

.chat-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.status-indicator {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  background-color: #22c55e;
  border-radius: 50%;
  border: 2px solid var(--bg-card);
}

.chat-user-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-name);
  line-height: 1.2;
}

.chat-user-status {
  font-size: 0.75rem;
  color: #22c55e;
  font-weight: 500;
}

.chat-close-btn {
  background: none;
  border: none;
  color: var(--text-bio);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.chat-close-btn:hover {
  color: var(--text-name);
  background-color: rgba(255, 255, 255, 0.1);
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  box-sizing: border-box;
}

.chat-messages::-webkit-scrollbar {
  width: 4px;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--border-yellow);
  border-radius: 4px;
}

.chat-message {
  display: flex;
  flex-direction: column;
  max-width: 88%;
  min-width: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.chat-message.assistant {
  align-self: flex-start;
}

.chat-message.user {
  align-self: flex-end;
}

.message-content {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.88rem;
  line-height: 1.45;
  word-break: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
}

.message-content p {
  margin-bottom: 6px;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.message-content p:last-child {
  margin-bottom: 0;
}

.message-content strong {
  font-weight: 700;
}

.message-content em {
  font-style: italic;
}

.message-content ul, .message-content ol {
  margin: 6px 0;
  padding-left: 20px;
  word-break: break-word;
}

.message-content li {
  margin-bottom: 3px;
  word-break: break-word;
}

.message-content code {
  background: rgba(0, 0, 0, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.82rem;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.message-content pre {
  background: rgba(0, 0, 0, 0.3);
  padding: 8px 10px;
  border-radius: 6px;
  overflow-x: auto;
  max-width: 100%;
  white-space: pre-wrap;
  word-break: break-word;
  box-sizing: border-box;
  margin: 6px 0;
}

.message-content img, .message-content table {
  max-width: 100%;
  box-sizing: border-box;
}

.message-content a {
  color: var(--border-yellow);
  text-decoration: underline;
  word-break: break-all;
}

.chat-message.user .message-content a {
  color: #111827;
}

.chat-message.assistant .message-content {
  background-color: var(--flyout-hover);
  color: var(--text-name);
  border-bottom-left-radius: 4px;
}

.chat-message.user .message-content {
  background-color: var(--border-yellow);
  color: #111827;
  font-weight: 500;
  border-bottom-right-radius: 4px;
}

.message-time {
  font-size: 0.68rem;
  color: var(--text-bio);
  margin-top: 4px;
  padding: 0 4px;
}

.chat-message.user .message-time {
  align-self: flex-end;
}


/* Quick Suggestion Chips */
.chat-suggestions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}

.chip-btn {
  background-color: transparent;
  border: 1px solid var(--border-yellow);
  color: var(--text-name);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 20px;
  cursor: pointer;
  text-align: left;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.chip-btn:hover {
  background-color: var(--border-yellow);
  color: #111827;
}

/* Typing Indicator Animation */
.typing-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  background-color: var(--text-bio);
  border-radius: 50%;
  animation: typing-bounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1.1); opacity: 1; }
}

/* Chat Input Area */
.chat-input-area {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(0, 0, 0, 0.05);
}

.chat-input-area input {
  flex: 1;
  background-color: var(--flyout-hover);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-name);
  font-size: 0.88rem;
  padding: 10px 14px;
  border-radius: 20px;
  outline: none;
  transition: border-color 0.2s ease;
}

.chat-input-area input:focus {
  border-color: var(--border-yellow);
}

.chat-input-area button {
  background-color: var(--border-yellow);
  color: #111827;
  border: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.chat-input-area button:hover {
  transform: scale(1.06);
}

@media (max-width: 640px) {
  .chat-bubble-btn {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
    font-size: 1.3rem;
  }
  .chat-widget {
    bottom: 82px;
    right: 16px;
    width: calc(100vw - 32px);
    height: 440px;
  }
}