@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Enhanced Color Palette */
  --bg1: #fafdff;
  --bg2: #eef7ff;
  --bg3: #f8fbff;
  --text: #0a0a0a;
  --text-secondary: #4a5568;
  --muted: #556070;
  --accent: #00aaff;
  --accent-2: #66e0ff;
  --accent-3: #b3f0ff;
  --panel: rgba(255,255,255,0.65);
  --panel-strong: #ffffff;
  --panel-hover: rgba(255,255,255,0.85);
  --border: rgba(0,0,0,0.08);
  --border-strong: rgba(0,0,0,0.12);
  --shadow: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-strong: 0 16px 48px rgba(0,0,0,0.12);
  --blur: 20px;
  --radius: 24px;
  --radius-sm: 12px;
  --radius-lg: 32px;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  --gradient-primary: linear-gradient(135deg, var(--accent), var(--accent-2));
  --gradient-secondary: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  --gradient-bg: radial-gradient(1200px 600px at 20% 0%, var(--bg2), transparent 60%), 
                 radial-gradient(1000px 500px at 80% 100%, var(--panel-strong), transparent 40%), 
                 linear-gradient(180deg, var(--bg1), var(--bg2));
}

:root[data-theme="dark"] {
  --bg1: #0e1116;
  --bg2: #0b0d12;
  --bg3: #161b22;
  --text: #e9eef6;
  --text-secondary: #b1bac4;
  --muted: #9aa8be;
  --accent: #00aaff;
  --accent-2: #5ecbff;
  --accent-3: #99e5ff;
  --panel: rgba(255,255,255,0.08);
  --panel-strong: rgba(255,255,255,0.12);
  --panel-hover: rgba(255,255,255,0.16);
  --border: rgba(255,255,255,0.15);
  --border-strong: rgba(255,255,255,0.25);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-strong: 0 16px 48px rgba(0,0,0,0.6);
  --blur: 24px;
  --gradient-bg: radial-gradient(1200px 600px at 20% 0%, var(--bg2), transparent 60%), 
                 radial-gradient(1000px 500px at 80% 100%, var(--panel-strong), transparent 40%), 
                 linear-gradient(180deg, var(--bg1), var(--bg2));
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--gradient-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: all 0.3s ease;
  line-height: 1.6;
}

.navbar{ 
  position:sticky; 
  top:0; 
  z-index:50; 
  backdrop-filter: blur(var(--blur)); 
  background: color-mix(in oklab, var(--panel), white 10%); 
  border-bottom:1px solid var(--border); 
  box-shadow: var(--shadow); 
  animation: slideDown 0.4s ease; 
}

@keyframes slideDown{ 
  from{ transform: translateY(-100%); opacity:0; } 
  to{ transform: translateY(0); opacity:1; } 
}

.nav-inner{ 
  max-width:1200px; 
  margin:auto; 
  display:flex; 
  align-items:center; 
  justify-content:space-between; 
  padding:14px 24px; 
}

.brand{ 
  display:flex; 
  align-items:center; 
  gap:10px; 
  cursor:pointer; 
} 

.brand img{ 
  height:28px; 
  transition: transform 0.3s ease; 
} 

.brand img:hover{ 
  transform: rotate(360deg) scale(1.1); 
} 

.brand-name{ 
  font-weight:700; 
  letter-spacing:.2px; 
}

.nav-links{ 
  display:flex; 
  gap:8px; 
  align-items:center; 
}

.nav-links a{ 
  text-decoration:none; 
  color:var(--text); 
  padding:8px 14px; 
  border-radius:999px; 
  font-weight:600; 
  transition: all .25s ease; 
  position:relative; 
}

.nav-links a::after{ 
  content:''; 
  position:absolute; 
  bottom:2px; 
  left:50%; 
  transform:translateX(-50%) scaleX(0); 
  width:80%; 
  height:2px; 
  background:var(--accent); 
  transition: transform 0.3s ease; 
}

.nav-links a.active, .nav-links a:hover{ 
  background: var(--accent); 
  color: white; 
}

.nav-links a.active::after, .nav-links a:hover::after{ 
  transform:translateX(-50%) scaleX(1); 
}

.theme-toggle{ 
  display:inline-flex; 
  align-items:center; 
  gap:8px; 
  border:1px solid var(--border); 
  border-radius:999px; 
  padding:6px 10px; 
  cursor:pointer; 
  background: color-mix(in oklab, var(--panel), white 8%); 
  transition: all 0.3s ease; 
}

.theme-toggle:hover{ 
  transform: scale(1.05); 
  border-color: var(--accent); 
}

.container{ 
  max-width:1200px; 
  margin:32px auto; 
  padding:0 24px; 
  animation: fadeIn 0.5s ease; 
}

@keyframes fadeIn{ 
  from{ opacity:0; transform: translateY(20px); } 
  to{ opacity:1; transform: translateY(0); } 
}

.card{ 
  background: var(--panel); 
  backdrop-filter: blur(var(--blur)); 
  border:1px solid var(--border); 
  border-radius: var(--radius); 
  box-shadow: var(--shadow); 
  overflow:hidden; 
  margin-bottom:24px; 
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; 
  animation: cardSlideIn 0.5s ease backwards; 
}

@keyframes cardSlideIn{ 
  from{ opacity:0; transform: translateY(30px) scale(0.95); } 
  to{ opacity:1; transform: translateY(0) scale(1); } 
}

.card:nth-child(1){ animation-delay: 0.1s; } 
.card:nth-child(2){ animation-delay: 0.2s; } 
.card:nth-child(3){ animation-delay: 0.3s; }

.card:hover{ 
  transform: translateY(-4px); 
  box-shadow: 0 12px 32px rgba(0,0,0,0.12); 
  border-color: var(--accent); 
} 

.card-header{ 
  padding:18px 24px; 
  border-bottom:1px solid var(--border); 
  display:flex; 
  justify-content:space-between; 
  align-items:center; 
}

.card-title{ 
  font-size:18px; 
  font-weight:700; 
  background: linear-gradient(90deg, var(--text), var(--accent)); 
  -webkit-background-clip: text; 
  -webkit-text-fill-color: transparent; 
  background-clip: text; 
} 

.card-body{ 
  padding:22px; 
} 

.subtitle{ 
  color: var(--muted); 
  font-size:14px; 
  margin-top:6px; 
}

.input{ 
  width:100%; 
  background: white; 
  color:#0a0a0a; 
  border:1px solid var(--border); 
  border-radius:12px; 
  padding:10px 14px; 
  transition: all 0.3s ease; 
}

:root[data-theme="dark"] .input{ 
  background: var(--panel-strong); 
  color: var(--text); 
} 

.input:focus{ 
  outline:none; 
  border-color: var(--accent); 
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 20%, transparent); 
  transform: translateY(-1px); 
}

.btn{ 
  border:none; 
  border-radius:12px; 
  padding:10px 18px; 
  font-weight:700; 
  cursor:pointer; 
  transition: all .2s ease; 
  position:relative; 
  overflow:hidden; 
}

.btn::before{ 
  content:''; 
  position:absolute; 
  top:50%; 
  left:50%; 
  width:0; 
  height:0; 
  border-radius:50%; 
  background: rgba(255,255,255,0.3); 
  transform: translate(-50%, -50%); 
  transition: width 0.5s, height 0.5s; 
}

.btn:hover::before{ 
  width:300px; 
  height:300px; 
}

.btn:active{ 
  transform: translateY(2px) scale(0.98); 
} 

.btn-primary{ 
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); 
  color:white; 
  box-shadow: 0 8px 18px color-mix(in oklab, var(--accent) 40%, transparent); 
}

.btn-primary:hover{ 
  filter: brightness(1.1); 
  box-shadow: 0 12px 24px color-mix(in oklab, var(--accent) 50%, transparent); 
  transform: translateY(-2px); 
} 

.btn-secondary{ 
  background: transparent; 
  color: var(--accent); 
  border:1px solid var(--accent); 
}

.btn-secondary:hover{ 
  background: color-mix(in oklab, var(--accent) 15%, transparent); 
  transform: translateY(-1px); 
}

.dropzone{ 
  border:2px dashed var(--accent); 
  border-radius: var(--radius); 
  padding:48px; 
  text-align:center; 
  cursor:pointer; 
  background: color-mix(in oklab, var(--panel), white 10%); 
  transition: all 0.3s ease; 
  position:relative; 
  overflow:hidden; 
}

.dropzone::before{ 
  content:''; 
  position:absolute; 
  top:-2px; 
  left:-2px; 
  right:-2px; 
  bottom:-2px; 
  background: linear-gradient(45deg, var(--accent), var(--accent-2), var(--accent)); 
  border-radius: var(--radius); 
  opacity:0; 
  transition: opacity 0.3s ease; 
  z-index:-1; 
}

.dropzone:hover{ 
  background: color-mix(in oklab, var(--panel), white 18%); 
  transform: scale(1.02); 
}

.dropzone:hover::before{ 
  opacity:0.3; 
}

.dropzone.dragover{ 
  border-color: var(--success); 
  background: color-mix(in oklab, var(--success) 10%, transparent); 
  transform: scale(1.02); 
}

.metrics{ 
  display:grid; 
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); 
  gap:14px; 
}

.metric-card{ 
  background: white; 
  border:1px solid var(--border); 
  border-radius:16px; 
  box-shadow: var(--shadow); 
  text-align:center; 
  padding:16px; 
  transition: all 0.3s ease; 
  position:relative; 
  overflow:hidden; 
}

.metric-card::before{ 
  content:''; 
  position:absolute; 
  top:0; 
  left:0; 
  right:0; 
  height:3px; 
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); 
  transform: scaleX(0); 
  transform-origin: left; 
  transition: transform 0.5s ease; 
}

.metric-card:hover{ 
  transform: translateY(-4px) scale(1.05); 
  box-shadow: 0 12px 28px rgba(0,0,0,0.15); 
}

.metric-card:hover::before{ 
  transform: scaleX(1); 
}

.metric-label{ 
  font-size:12px; 
  color: var(--muted); 
  text-transform:uppercase; 
  letter-spacing:0.5px; 
  font-weight:600; 
} 

.metric-value{ 
  font-size:26px; 
  font-weight:800; 
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); 
  -webkit-background-clip: text; 
  -webkit-text-fill-color: transparent; 
  background-clip: text; 
  margin-top:4px; 
  animation: countUp 0.8s ease; 
}

@keyframes countUp{ 
  from{ opacity:0; transform: translateY(10px); } 
  to{ opacity:1; transform: translateY(0); } 
}

:root[data-theme="dark"] .metric-card{ 
  background: var(--panel-strong); 
  color: var(--text); 
}

.table-wrap{ 
  overflow:auto; 
  border:1px solid var(--border); 
  border-radius:12px; 
  background: white; 
} 

:root[data-theme="dark"] .table-wrap{ 
  background: var(--panel-strong); 
}

table{ 
  width:100%; 
  border-collapse: collapse; 
  font-size:14px; 
} 

th, td{ 
  padding:12px 14px; 
  border-bottom:1px solid var(--border); 
  transition: background 0.2s ease; 
}

tbody tr{ 
  transition: all 0.2s ease; 
}

tbody tr:hover{ 
  background: color-mix(in oklab, var(--accent) 8%, transparent); 
  transform: scale(1.01); 
}

th{ 
  text-align:left; 
  background: color-mix(in oklab, var(--bg2), white 20%); 
  font-weight:700; 
  font-size:12px; 
  text-transform:uppercase; 
  letter-spacing:0.5px; 
}

.badge{ 
  display:inline-block; 
  padding:5px 12px; 
  border-radius:999px; 
  font-size:11px; 
  font-weight:700; 
  text-transform:uppercase; 
  letter-spacing:0.3px; 
  transition: all 0.2s ease; 
}

.badge:hover{ 
  transform: scale(1.05); 
}

.badge-low{ 
  background:#e0f2ff; 
  color:#0b4a6e; 
} 

.badge-med{ 
  background:#fff4d6; 
  color:#7a5200; 
} 

.badge-crit{ 
  background:#ffe1e1; 
  color:#7a0b0b; 
}

:root[data-theme="dark"] .badge-low{ 
  background:#0b4a6e; 
  color:#e0f2ff; 
}

:root[data-theme="dark"] .badge-med{ 
  background:#7a5200; 
  color:#fff4d6; 
}

:root[data-theme="dark"] .badge-crit{ 
  background:#7a0b0b; 
  color:#ffe1e1; 
}

footer{ 
  text-align:center; 
  font-size:12px; 
  color: var(--muted); 
  padding:40px 0; 
}

/* Logo animation */
.brand img{ 
  animation: logoFloat 3s ease-in-out infinite; 
}

@keyframes logoFloat{ 
  0%, 100%{ transform: translateY(0px); } 
  50%{ transform: translateY(-3px); } 
}

/* Kbd styling */
kbd{ 
  padding:3px 7px; 
  background:var(--panel-strong); 
  border:1px solid var(--border); 
  border-radius:4px; 
  font-size:12px; 
  font-family:monospace; 
  box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
}

/* Small card used for anomaly cards */
.small-card{ 
  border:1px solid var(--border); 
  border-radius:12px; 
  background: color-mix(in oklab, var(--panel), white 6%); 
  transition: all 0.3s ease; 
}

.small-card:hover{ 
  border-color: var(--accent); 
  box-shadow: 0 8px 20px rgba(0,0,0,0.1); 
  transform: translateX(4px); 
}

/* Spinner */
.spinner{ 
  width:18px; 
  height:18px; 
  border-radius:50%; 
  border:3px solid rgba(0,0,0,0.08); 
  border-top-color: var(--accent); 
  animation: spin 0.8s linear infinite; 
  display:inline-block; 
  margin-left:8px; 
}

@keyframes spin{ 
  from{ transform: rotate(0deg); } 
  to{ transform: rotate(360deg); } 
}

/* Toast notifications */
.toast{ 
  position:fixed; 
  top:80px; 
  right:20px; 
  background: white; 
  border:1px solid var(--border); 
  border-left:4px solid var(--accent); 
  border-radius:12px; 
  padding:14px 18px; 
  box-shadow: 0 8px 24px rgba(0,0,0,0.15); 
  z-index:1000; 
  min-width:280px; 
  animation: toastSlideIn 0.4s ease; 
}

@keyframes toastSlideIn{ 
  from{ transform: translateX(400px); opacity:0; } 
  to{ transform: translateX(0); opacity:1; } 
}

.toast.success{ 
  border-left-color: var(--success); 
}

.toast.error{ 
  border-left-color: var(--error); 
}

.toast.warning{ 
  border-left-color: var(--warning); 
}

.toast.info{ 
  border-left-color: var(--info); 
}

:root[data-theme="dark"] .toast{ 
  background: var(--panel-strong); 
}

/* Progress bar */
.progress-bar{ 
  width:100%; 
  height:6px; 
  background: var(--border); 
  border-radius:999px; 
  overflow:hidden; 
  margin-top:8px; 
}

.progress-bar-fill{ 
  height:100%; 
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); 
  border-radius:999px; 
  transition: width 0.3s ease; 
  animation: progressPulse 1.5s ease-in-out infinite; 
}

@keyframes progressPulse{ 
  0%, 100%{ opacity:1; } 
  50%{ opacity:0.7; } 
}

/* Loading skeleton */
.skeleton{ 
  background: linear-gradient(90deg, var(--border) 25%, var(--panel) 50%, var(--border) 75%); 
  background-size: 200% 100%; 
  animation: skeleton 1.5s ease-in-out infinite; 
  border-radius:8px; 
}

@keyframes skeleton{ 
  0%{ background-position: 200% 0; } 
  100%{ background-position: -200% 0; } 
}

/* Pulse animation */
.pulse{ 
  animation: pulse 2s ease-in-out infinite; 
}

@keyframes pulse{ 
  0%, 100%{ opacity:1; transform: scale(1); } 
  50%{ opacity:0.8; transform: scale(1.05); } 
}

/* Fade in */
.fade-in{ 
  animation: fadeIn 0.5s ease; 
}

/* Disabled state */
.btn[disabled]{ 
  opacity:0.6; 
  cursor:not-allowed; 
  filter: grayscale(0.3); 
}

.btn[disabled]:hover{ 
  transform: none; 
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 80px 0 60px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(800px 400px at 50% 0%, rgba(0, 170, 255, 0.1), transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 20px;
  line-height: 1.2;
  animation: heroSlideIn 0.8s ease;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin: 0 0 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: heroSlideIn 0.8s ease 0.2s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 40px;
  animation: heroSlideIn 0.8s ease 0.4s both;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

@keyframes heroSlideIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Enhanced Card Styles */
.connection-card {
  border: 1px solid var(--border);
  background: var(--panel);
  backdrop-filter: blur(var(--blur));
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
  animation: pulse 2s infinite;
}

.status-indicator.connected {
  background: var(--success);
}

.status-indicator.error {
  background: var(--error);
}

.input-group {
  margin-bottom: 20px;
}

.input-label {
  display: block;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper .input {
  padding-right: 50px;
}

.btn-icon {
  position: absolute;
  right: 8px;
  padding: 8px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--panel-hover);
  color: var(--accent);
}

.button-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.health-status {
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: var(--panel-hover);
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

/* Upload Section Enhancements */
.upload-card {
  border: 2px dashed var(--border);
  background: var(--panel);
  transition: all 0.3s ease;
}

.upload-card:hover {
  border-color: var(--accent);
  background: var(--panel-hover);
}

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

.file-types {
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--panel-hover);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.dropzone-content {
  text-align: center;
  padding: 20px;
}

.dropzone-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  animation: bounce 2s infinite;
}

.dropzone-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}

.dropzone-subtitle {
  color: var(--text-secondary);
  margin: 0 0 20px;
}

.click-here {
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}

.dropzone-features {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.feature {
  font-size: 0.85rem;
  color: var(--success);
  font-weight: 600;
}

.upload-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.secondary-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.upload-hint {
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: var(--panel-hover);
  font-size: 0.9rem;
  text-align: center;
}

.file-preview {
  margin-top: 16px;
  padding: 16px;
  background: var(--info);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Analytics Overview */
.analytics-card {
  background: var(--panel);
  border: 1px solid var(--border);
}

.analytics-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.metric-card {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.metric-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
  border-color: var(--accent);
}

.metric-card:hover::before {
  transform: scaleX(1);
}

.metric-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

.metric-content {
  position: relative;
  z-index: 1;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  margin-bottom: 8px;
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: countUp 0.8s ease;
}

/* Tips Section */
.tips-card {
  background: var(--panel);
  border: 1px solid var(--border);
}

.tips-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.tip-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.tip-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.tip-content {
  flex: 1;
}

.tip-title {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  font-size: 1rem;
}

.tip-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.tip-shortcuts {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tip-shortcuts kbd {
  display: inline-block;
  margin-right: 8px;
}

/* Footer Enhancements */
.footer {
  background: var(--panel);
  border-top: 1px solid var(--border);
  margin-top: 80px;
  padding: 40px 0;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  height: 24px;
}

.footer-title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.footer-version {
  font-size: 0.9rem;
  color: var(--muted);
  background: var(--panel-hover);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.footer-features {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.feature-badge {
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--panel-hover);
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.feature-badge:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* Enhanced Animations */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Utility classes */
.text-success{ color: var(--success); }
.text-warning{ color: var(--warning); }
.text-error{ color: var(--error); }
.text-muted{ color: var(--muted); }
.flex{ display:flex; }
.flex-col{ flex-direction:column; }
.gap-2{ gap:8px; }
.gap-3{ gap:12px; }
.gap-4{ gap:16px; }
.items-center{ align-items:center; }
.justify-between{ justify-content:space-between; }
.mt-2{ margin-top:8px; }
.mt-3{ margin-top:12px; }
.mb-2{ margin-bottom:8px; }
.mb-3{ margin-bottom:12px; }
.p-2{ padding:8px; }
.p-3{ padding:12px; }

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-stats {
    gap: 30px;
    flex-direction: column;
    align-items: center;
  }
  
  .stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .nav-inner {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .nav-links {
    gap: 4px;
  }
  
  .nav-links a {
    padding: 6px 10px;
    font-size: 0.9rem;
  }
  
  .container {
    padding: 0 16px;
    margin: 20px auto;
  }
  
  .card {
    margin-bottom: 16px;
  }
  
  .card-header {
    padding: 16px 20px;
  }
  
  .card-body {
    padding: 16px 20px;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .tips-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .tip-item {
    padding: 16px;
  }
  
  .upload-actions {
    gap: 12px;
  }
  
  .btn-large {
    padding: 14px 24px;
    font-size: 1rem;
  }
  
  .secondary-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-main {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-features {
    flex-direction: column;
    gap: 12px;
  }
  
  .dropzone {
    padding: 32px 20px;
  }
  
  .dropzone-icon {
    font-size: 2.5rem;
  }
  
  .dropzone-title {
    font-size: 1.3rem;
  }
  
  .dropzone-features {
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .nav-links a {
    padding: 4px 8px;
    font-size: 0.85rem;
  }
  
  .theme-toggle {
    padding: 4px 8px;
    font-size: 0.85rem;
  }
  
  .container {
    padding: 0 12px;
  }
  
  .card-header {
    padding: 12px 16px;
  }
  
  .card-body {
    padding: 12px 16px;
  }
  
  .metric-card {
    padding: 16px;
  }
  
  .metric-value {
    font-size: 2rem;
  }
  
  .btn-large {
    padding: 12px 20px;
    font-size: 0.95rem;
  }
  
  .dropzone {
    padding: 24px 16px;
  }
  
  .dropzone-icon {
    font-size: 2rem;
  }
  
  .dropzone-title {
    font-size: 1.2rem;
  }
}

/* Tablet specific adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero-stats {
    gap: 40px;
  }
  
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tips-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large screen optimizations */
@media (min-width: 1400px) {
  .container {
    max-width: 1400px;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .hero-subtitle {
    font-size: 1.4rem;
  }
  
  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .tips-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.blackfont {
  color:black;
}


.centeralise {
  align-items:center;
}

.smallercard {
  height:350px;
}

/* Large, unconstrained chart hero used on results page */
.chart-hero {
  display: block;
  max-width: 760px;
  margin: 8px auto 18px auto;
  padding: 6px 10px;
  text-align: center;
}
.chart-hero .chart-hero-inner {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
}
.chart-hero canvas {
  width: 100% !important; /* let Chart.js fill parent */
  height: auto !important;
  aspect-ratio: 1.4 / 1;
  display: block;
  margin: 0 auto;
}