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

/* CSS Variables */
:root {
  /* Light Theme - Modern, vibrant, breathable */
  --bg-color: #f8fafc;
  /* Lighter off-white/slate */
  --text-color: #1e293b;
  /* Deep slate */
  --header-bg: rgba(255, 255, 255, 0.75);
  /* Glass header */
  --header-text: #0f172a;
  --nav-bg: transparent;
  --nav-border: rgba(226, 232, 240, 0.8);
  --nav-link-color: #64748b;
  --nav-link-hover: #0ea5e9;
  /* Sleek sky blue accent */
  --nav-active-border: #0ea5e9;
  --container-bg: #ffffff;
  --table-bg: #ffffff;
  --table-header-bg: #f1f5f9;
  --button-bg: linear-gradient(135deg, #0ea5e9, #3b82f6);
  --button-hover: linear-gradient(135deg, #0284c7, #2563eb);
  --input-bg: #f8fafc;
  --input-border: #e2e8f0;
  --input-focus: #38bdf8;
  --footer-bg: transparent;
  --footer-text: #94a3b8;
  --highlight-bg: rgba(14, 165, 233, 0.1);
  --spinner-border: rgba(14, 165, 233, 0.2);
  --spinner-top: #0ea5e9;
  --auth-container-bg: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  --auth-card-bg: rgba(255, 255, 255, 0.9);
  --auth-subtitle-color: #64748b;
  --auth-button-bg: linear-gradient(135deg, #0ea5e9, #3b82f6);
  --auth-button-hover: linear-gradient(135deg, #0284c7, #2563eb);
  --link-color: #0ea5e9;
  --danger-color: #ef4444;

  /* Shared Modern Variables */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --shadow-float: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --border-radius-sm: 8px;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-blur: blur(12px);
}

body.dark-mode {
  /* Dark Theme - Sleek obsidian & electric blue */
  --bg-color: #0f172a;
  /* Slate 900 */
  --text-color: #f8fafc;
  /* Slate 50 */
  --header-bg: rgba(15, 23, 42, 0.75);
  --header-text: #f8fafc;
  --nav-bg: transparent;
  --nav-border: rgba(51, 65, 85, 0.8);
  --nav-link-color: #94a3b8;
  --nav-link-hover: #38bdf8;
  --nav-active-border: #38bdf8;
  --container-bg: rgba(30, 41, 59, 0.7);
  /* Translucent slate 800 */
  --table-bg: transparent;
  --table-header-bg: rgba(15, 23, 42, 0.8);
  --button-bg: linear-gradient(135deg, #38bdf8, #2563eb);
  --button-hover: linear-gradient(135deg, #0ea5e9, #1d4ed8);
  --input-bg: rgba(15, 23, 42, 0.6);
  --input-border: #334155;
  --input-focus: #38bdf8;
  --footer-bg: transparent;
  --footer-text: #64748b;
  --highlight-bg: rgba(56, 189, 248, 0.15);
  --spinner-border: rgba(56, 189, 248, 0.2);
  --spinner-top: #38bdf8;
  --auth-container-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --auth-card-bg: rgba(30, 41, 59, 0.85);
  --auth-subtitle-color: #94a3b8;
  --auth-button-bg: linear-gradient(135deg, #38bdf8, #2563eb);
  --auth-button-hover: linear-gradient(135deg, #0ea5e9, #1d4ed8);
  --link-color: #38bdf8;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
  --shadow-float: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  --glass-border: rgba(255, 255, 255, 0.05);
}

/* General Styles */
body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  background: var(--bg-color);
  color: var(--text-color);
  transition: background 0.4s ease, color 0.4s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#main-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  /* Pushes footer down */
  transition: opacity 0.3s ease;
  padding-top: 70px;
  /* offset for fixed header */
}

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

a:hover {
  opacity: 0.8;
}

.hidden {
  display: none !important;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--header-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--header-text);
  padding: 0 24px;
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: background 0.4s ease, color 0.4s ease;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease;
}

.header-link:hover {
  transform: scale(1.02);
}

.header-logo {
  height: 40px;
  width: auto;
  border-radius: 8px;
  /* if it's not transparent/round */
}

.header-title {
  font-size: 1.6em;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 0;
  background: var(--button-bg);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.menu-button {
  background: transparent;
  color: var(--header-text);
  border: none;
  cursor: pointer;
  font-size: 1.8em;
  padding: 4px;
  border-radius: var(--border-radius-sm);
  transition: background 0.2s ease, transform 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menu-button:hover {
  background: var(--highlight-bg);
  transform: scale(1.05);
}

.theme-toggle {
  font-size: 0.9em;
  font-weight: 500;
  background: transparent;
  color: var(--header-text);
  border: 1px solid var(--input-border);
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background: var(--highlight-bg);
  border-color: var(--nav-link-hover);
}

/* Navigation Tabs */
nav {
  background: var(--nav-bg);
  padding: 16px 20px 0 20px;
  display: flex;
  justify-content: center;
  gap: 32px;
  border-bottom: 1px solid var(--nav-border);
  flex-wrap: wrap;
}

nav a {
  text-decoration: none;
  color: var(--nav-link-color);
  font-weight: 600;
  font-size: 1.05em;
  cursor: pointer;
  transition: color 0.3s ease, transform 0.2s ease;
  padding: 8px 12px;
  border-bottom: 3px solid transparent;
  border-radius: 4px 4px 0 0;
}

nav a:hover {
  color: var(--nav-link-hover);
}

nav a.active {
  color: var(--text-color);
  border-bottom: 3px solid var(--nav-active-border);
}

nav a.disabled {
  color: var(--nav-link-color);
  opacity: 0.4;
  pointer-events: none !important;
}

/* Main Container */
.container {
  max-width: 1100px;
  margin: 40px auto;
  padding: 40px;
  background: var(--container-bg);
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  width: 90%;
  animation: fadeIn 0.5s ease-out;
  box-sizing: border-box;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h2 {
  font-size: 1.8em;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 24px;
  color: var(--text-color);
}

h3 {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-color);
}

/* Form Elements */
label {
  font-weight: 500;
  font-size: 0.9em;
  color: var(--text-color);
  display: inline-block;
  margin-bottom: 6px;
}

select,
input[type="text"],
input[type="email"],
input[type="password"],
textarea {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-color);
  padding: 10px 14px;
  border-radius: var(--border-radius-sm);
  font-size: 1em;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  font-family: inherit;
  box-sizing: border-box;
}

select:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px var(--highlight-bg);
}

button {
  background: var(--button-bg);
  color: #ffffff;
  border: none;
  cursor: pointer;
  padding: 10px 20px;
  border-radius: var(--border-radius-sm);
  font-size: 1em;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

button:hover {
  background: var(--button-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

button:active {
  transform: translateY(0);
}

/* Form Layout Classes */
.input-group {
  margin-bottom: 20px;
  position: relative;
  width: 100%;
}

.input-group label {
  display: block;
}

.input-group select,
.input-group input[type="text"],
.input-group input[type="email"],
.input-group input[type="password"],
.input-group textarea {
  width: 100%;
}

/* Tables */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 24px;
  background: var(--table-bg);
  color: var(--text-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--nav-border);
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--nav-border);
  text-align: left;
}

td {
  text-align: center;
  /* keep center for stats */
}

th {
  background: var(--table-header-bg);
  font-weight: 600;
  font-size: 0.95em;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
  position: relative;
  cursor: pointer;
}

th:last-child,
td:last-child {
  border-right: none;
}

/* Remove bottom border on last row */
tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: var(--highlight-bg);
}

th.sorted-asc::after {
  content: '↑';
  position: absolute;
  right: 8px;
  color: var(--nav-link-hover);
}

th.sorted-desc::after {
  content: '↓';
  position: absolute;
  right: 8px;
  color: var(--nav-link-hover);
}

/* Authentication */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: var(--auth-container-bg);
  padding: 20px;
}

.auth-card {
  background: var(--auth-card-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-float);
  border: 1px solid var(--glass-border);
  width: 100%;
  max-width: 400px;
  text-align: center;
  animation: floatIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

@keyframes floatIn {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.auth-card h2 {
  font-size: 1.8em;
  margin-bottom: 8px;
}

.auth-subtitle {
  color: var(--auth-subtitle-color);
  font-size: 0.95em;
  margin-bottom: 24px;
}

.auth-card .input-group {
  text-align: left;
  margin-bottom: 20px;
}

.auth-button {
  width: 100%;
  padding: 12px;
  background: var(--auth-button-bg);
  color: #fff;
  border-radius: var(--border-radius-sm);
  font-size: 1.05em;
}

.auth-button:hover {
  background: var(--auth-button-hover);
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--nav-border);
  margin: 24px 0;
}

/* Suggestions Dropdown */
.suggestions-list {
  background: var(--container-bg);
  border: 1px solid var(--nav-border);
  border-radius: var(--border-radius-sm);
  color: var(--text-color);
  max-height: 220px;
  overflow-y: auto;
  position: absolute;
  display: none;
  padding: 4px;
  margin: 0;
  z-index: 1000;
  width: 100%;
  box-shadow: var(--shadow-lg);
  top: 100%;
  left: 0;
  margin-top: 6px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  list-style: none !important;
}

.suggestions-list li {
  padding: 10px 14px !important;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  list-style: none !important;
  margin: 0;
  text-align: left;
  border-radius: 6px;
}

.suggestions-list li:hover {
  background: var(--highlight-bg);
  color: var(--nav-link-hover);
}

/* Side Panel */
.side-panel {
  position: fixed;
  top: 70px;
  left: 0;
  width: 260px;
  height: calc(100vh - 70px);
  background-color: var(--container-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  gap: 12px;
}

.side-panel.open {
  transform: translateX(0);
}

.side-panel button {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  color: var(--text-color);
  box-shadow: none;
  font-weight: 500;
  font-size: 1.05rem;
}

.side-panel button:hover,
.side-panel button.active {
  background: var(--highlight-bg);
  color: var(--nav-link-hover);
  transform: none;
  /* remove global button transform */
}

/* SVG icon coloring in side panel */
.side-panel button svg path {
  fill: currentColor;
}

.side-panel button svg {
  flex-shrink: 0;
}

#profile-button svg path {
  fill: currentColor;
}

#logout-button svg path {
  stroke: currentColor;
  fill: none;
}

/* Profile & FAQ Views */
#profile-view,
#faq-view {
  position: fixed;
  top: 70px;
  left: 0;
  width: 100%;
  height: calc(100vh - 70px);
  background: var(--bg-color);
  color: var(--text-color);
  z-index: 998;
  /* Below header, same level approx as side panel open */
  overflow-y: auto;
  padding: 40px 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s;
  box-sizing: border-box;
}

#profile-view.active,
#faq-view.active {
  opacity: 1;
  visibility: visible;
}

.profile-container,
.faq-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--container-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.4s ease-out;
}

.back-button {
  background: transparent;
  border: none;
  color: var(--nav-link-color);
  cursor: pointer;
  margin-bottom: 24px;
  padding: 8px 12px;
  font-weight: 600;
  box-shadow: none;
  display: inline-flex;
  align-items: center;
}

.back-button:hover {
  background: var(--highlight-bg);
  color: var(--nav-link-hover);
  transform: translateX(-4px);
}

/* FAQ specifics */
.faq-item {
  margin-bottom: 16px;
  border: 1px solid var(--nav-border);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background: var(--input-bg);
}

.faq-question {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  transition: background 0.3s ease;
}

.faq-question:hover {
  background: var(--highlight-bg);
}

.faq-question h3 {
  margin: 0;
  font-size: 1.1em;
}

.faq-arrow {
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  color: var(--text-color);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 20px;
  color: var(--auth-subtitle-color);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
  padding: 0 20px 20px 20px;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

/* Factor Items (Query results links) */
.fact-item {
  cursor: pointer;
  margin-left: 12px;
  color: var(--nav-link-color);
  transition: all 0.2s ease-in-out;
  padding: 6px 10px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 4px;
}

.fact-item:hover {
  color: var(--nav-link-hover);
  background: var(--highlight-bg);
  transform: translateX(2px);
}

/* Highlight */
.highlight {
  background: var(--highlight-bg) !important;
  position: relative;
  overflow: hidden;
}

.highlight::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: inset 4px 0 0 0 var(--nav-link-hover);
  pointer-events: none;
}

/* Footer */
footer {
  background: var(--footer-bg);
  padding: 24px;
  text-align: center;
  font-size: 0.9em;
  color: var(--footer-text);
  margin-top: auto;
  border-top: 1px solid var(--nav-border);
}

#timestamp-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* Spinners & Loaders */
.spinner {
  border: 4px solid var(--spinner-border);
  border-top: 4px solid var(--spinner-top);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  animation: spin 1s cubic-bezier(0.55, 0.15, 0.45, 0.85) infinite;
  display: inline-block;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.loading-dots span {
  animation: blink 1.4s infinite;
  opacity: 0.2;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes blink {

  0%,
  100% {
    opacity: 0.2;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.2);
    color: var(--nav-link-hover);
  }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  nav {
    gap: 16px;
    padding: 12px 10px 0 10px;
  }

  nav a {
    font-size: 0.95em;
    padding: 8px;
  }

  .container {
    margin: 20px auto;
    padding: 24px 16px;
    width: 95%;
  }

  .header-title {
    font-size: 1.4em;
  }

  .auth-card {
    padding: 30px 20px;
  }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  #headtohead-tab>div {
    flex-direction: column;
    gap: 24px !important;
  }
}

/* Utility to ensure rows inside condition builders layout nicely */
.condition-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  background: var(--input-bg);
  padding: 12px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--nav-border);
}

.condition-row select,
.condition-row input {
  flex: 1;
  min-width: 150px;
  margin: 0 !important;
}

.condition-row button {
  background: var(--danger-color);
  box-shadow: none;
}

.condition-row button:hover {
  background: #dc2626;
  transform: none;
}

/* Expert Mode Styles */
.expert-query-box {
  background: #1e1e2e;
  color: #cdd6f4;
  padding: 0;
  border-radius: var(--border-radius-md);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85em;
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.expert-query-header {
  background: #181825;
  color: #a6adc8;
  font-family: inherit;
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.expert-query-header span:first-child::before {
  content: "▸ ";
  color: #a6e3a1;
}

.expert-query-header span:last-child {
  background: rgba(166, 227, 161, 0.12);
  color: #a6e3a1;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.85em;
}

.expert-query-box code {
  display: block;
  padding: 16px 20px;
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.7;
  tab-size: 2;
  color: #cdd6f4;
}

/* SQL comment lines (-- ) get a subtle teal color via JS */
.expert-sql-comment {
  color: #94e2d5;
  font-weight: 600;
  display: block;
  margin-top: 12px;
  margin-bottom: 4px;
}

.expert-sql-comment:first-child {
  margin-top: 0;
}

/* SQL Sandbox textarea */
#sandbox-sql {
  background: #1e1e2e;
  color: #cdd6f4;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-md);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
  padding: 16px;
  line-height: 1.6;
  resize: vertical;
  width: 100%;
  box-sizing: border-box;
}

#sandbox-sql:focus {
  border-color: #89b4fa;
  box-shadow: 0 0 0 3px rgba(137, 180, 250, 0.15);
  outline: none;
}

#sandbox-submit {
  background: linear-gradient(135deg, #a6e3a1, #94e2d5);
  color: #1e1e2e;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: var(--border-radius-sm);
  margin-top: 10px;
}

#sandbox-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(166, 227, 161, 0.3);
}