/* ===== CSS Variables ===== */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --border-color: rgba(99, 102, 241, 0.15);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --gradient-1: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
  --gradient-2: linear-gradient(135deg, #06b6d4, #6366f1);
  --positif: #10b981;
  --positif-bg: rgba(16, 185, 129, 0.1);
  --negatif: #ef4444;
  --negatif-bg: rgba(239, 68, 68, 0.1);
  --netral: #f59e0b;
  --netral-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ===== Layout ===== */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section { padding: 48px 0; }
.hidden { display: none !important; }

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px; height: 64px;
}
.nav-container {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; height: 100%; gap: 32px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--gradient-1); display: flex;
  align-items: center; justify-content: center;
  font-size: 16px; color: #fff;
}
.brand-text { font-weight: 700; font-size: 18px; }
.brand-accent { color: var(--accent-light); }
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav-link {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500;
  color: var(--text-secondary); transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.1);
}
.nav-link.active { color: var(--accent-light); }
.nav-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); }
.status-dot {
  width: 10px; height: 10px; border-radius: 50%;
  box-shadow: 0 0 10px currentColor;
}
.status-active { background: #10b981; color: #10b981; animation: status-pulse 2s infinite; }
.status-inactive { background: #ef4444; color: #ef4444; animation: status-pulse-red 2s infinite; }

@keyframes status-pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}
@keyframes status-pulse-red {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}
.nav-toggle { display: none; background: none; color: var(--text-primary); font-size: 20px; }

/* ===== Glass Card ===== */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}
.glass-card:hover { border-color: rgba(99,102,241,0.3); }

/* ===== Hero ===== */
.hero {
  padding: 120px 0 40px; position: relative; text-align: center;
  overflow: hidden;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.15;
}
.shape-1 { width: 400px; height: 400px; background: #6366f1; top: -100px; right: -100px; animation: float 8s ease-in-out infinite; }
.shape-2 { width: 300px; height: 300px; background: #8b5cf6; bottom: -50px; left: -50px; animation: float 10s ease-in-out infinite reverse; }
.shape-3 { width: 200px; height: 200px; background: #06b6d4; top: 50%; left: 50%; animation: float 6s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.hero-title { font-size: 42px; font-weight: 800; margin-bottom: 16px; line-height: 1.2; }
.hero-subtitle { font-size: 17px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.gradient-text {
  background: var(--gradient-1); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}

/* ===== Card Headers ===== */
.card-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.card-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(99,102,241,0.15); display: flex;
  align-items: center; justify-content: center;
  color: var(--accent-light); font-size: 18px;
}
.card-title { font-size: 18px; font-weight: 700; }
.card-desc { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; transition: var(--transition);
}
.btn-primary {
  background: var(--gradient-1); color: #fff;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(99,102,241,0.4); }
.btn-accent { background: var(--gradient-2); color: #fff; }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(6,182,212,0.3); }
.btn-danger { background: rgba(239,68,68,0.15); color: var(--negatif); border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: var(--negatif); color: #fff; }
.btn-full { width: 100%; justify-content: center; padding: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ===== Text Input ===== */
.text-input {
  width: 100%; padding: 14px 18px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary); font-size: 15px;
  resize: vertical; transition: var(--transition);
}
.text-input:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.text-input::placeholder { color: var(--text-muted); }
.input-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.char-count { font-size: 12px; color: var(--text-muted); }

/* ===== Loading ===== */
.loading-state, .table-loading { text-align: center; padding: 40px 0; }
.loader { display: flex; justify-content: center; gap: 8px; margin-bottom: 16px; }
.loader-ring {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); animation: bounce 1.4s ease-in-out infinite;
}
.loader-ring:nth-child(2) { animation-delay: 0.16s; }
.loader-ring:nth-child(3) { animation-delay: 0.32s; }
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}
.loading-text { color: var(--text-secondary); font-size: 14px; }
.loading-sub { color: var(--text-muted); font-size: 12px; margin-top: 4px; }

/* ===== Error ===== */
.error-state { text-align: center; padding: 24px; margin-top: 16px; background: var(--negatif-bg); border-radius: var(--radius-sm); }
.error-icon { font-size: 28px; color: var(--negatif); margin-bottom: 8px; }
.error-text { color: var(--negatif); font-size: 14px; }

/* ===== Result Card ===== */
.result-section { margin-top: 28px; display: flex; flex-direction: column; gap: 24px; }
.result-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.sentiment-badge {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 28px; border-radius: 50px;
  font-size: 22px; font-weight: 700;
}
.sentiment-badge.positif { background: var(--positif-bg); color: var(--positif); border: 2px solid rgba(16,185,129,0.3); }
.sentiment-badge.negatif { background: var(--negatif-bg); color: var(--negatif); border: 2px solid rgba(239,68,68,0.3); }
.sentiment-badge.netral { background: var(--netral-bg); color: var(--netral); border: 2px solid rgba(245,158,11,0.3); }

/* Confidence Ring */
.confidence-ring, .metric-ring { position: relative; width: 100px; height: 100px; }
.confidence-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.confidence-bg { fill: none; stroke: rgba(99,102,241,0.1); stroke-width: 8; }
.confidence-fill {
  fill: none; stroke: var(--accent); stroke-width: 8;
  stroke-linecap: round; stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292; transition: stroke-dashoffset 1.5s ease;
}
.accuracy-fill { stroke: var(--positif); }
.confidence-value {
  position: absolute; inset: 0; display: flex;
  align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
}

/* ===== Probability Bars ===== */
.prob-section { margin-top: 28px; }
.prob-title { font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.prob-bars { display: flex; flex-direction: column; gap: 14px; }
.prob-label { display: flex; justify-content: space-between; margin-bottom: 6px; }
.prob-name { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; }
.prob-value { font-size: 14px; font-weight: 700; }
.positif-color { color: var(--positif); }
.netral-color { color: var(--netral); }
.negatif-color { color: var(--negatif); }
.prob-track { height: 8px; background: rgba(255,255,255,0.05); border-radius: 4px; overflow: hidden; }
.prob-fill { height: 100%; border-radius: 4px; transition: width 1s ease; width: 0; }
.prob-fill-positif { background: var(--positif); }
.prob-fill-netral { background: var(--netral); }
.prob-fill-negatif { background: var(--negatif); }

/* ===== Preprocessing Steps ===== */
.steps-container { display: flex; flex-direction: column; gap: 12px; }
.step-item {
  display: flex; gap: 16px; padding: 14px 18px;
  background: rgba(15,23,42,0.5); border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent); font-size: 14px;
}
.step-number {
  width: 28px; height: 28px; min-width: 28px;
  border-radius: 50%; background: var(--gradient-1);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: #fff;
}
.step-label { font-weight: 600; color: var(--accent-light); margin-bottom: 4px; font-size: 13px; }
.step-content { color: var(--text-secondary); word-break: break-word; font-size: 13px; }

/* ===== Features Grid ===== */
.features-section { border-top: 1px solid var(--border-color); }
.section-title { text-align: center; font-size: 28px; font-weight: 800; margin-bottom: 36px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.feature-card { text-align: center; padding: 28px 20px; }
.feature-card h3 { font-size: 16px; font-weight: 700; margin: 14px 0 8px; }
.feature-card p { font-size: 13px; color: var(--text-secondary); }
.feature-icon-wrap {
  width: 56px; height: 56px; margin: 0 auto;
  border-radius: 14px; background: rgba(99,102,241,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: var(--accent-light);
}

/* ===== Page Header ===== */
.page-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 28px; flex-wrap: wrap; gap: 16px; }
.page-title { font-size: 28px; font-weight: 800; display: flex; align-items: center; gap: 12px; }
.page-title i { color: var(--accent-light); }
.page-desc { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }

/* ===== Filter Bar ===== */
.filter-bar { display: flex; gap: 16px; margin-bottom: 20px; align-items: center; flex-wrap: wrap; padding: 16px 20px; }
.search-wrapper { position: relative; flex: 1; min-width: 200px; }
.search-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }
.search-input {
  width: 100%; padding: 10px 14px 10px 40px;
  background: rgba(15,23,42,0.8); border: 1px solid var(--border-color);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: 14px;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.filter-buttons { display: flex; gap: 6px; }
.filter-btn {
  padding: 8px 14px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 500;
  background: rgba(15,23,42,0.5); color: var(--text-secondary);
  border: 1px solid transparent; transition: var(--transition);
}
.filter-btn:hover { color: var(--text-primary); background: rgba(99,102,241,0.1); }
.filter-btn.active { background: rgba(99,102,241,0.15); color: var(--accent-light); border-color: rgba(99,102,241,0.3); }

/* ===== Data Table ===== */
.table-card { overflow: hidden; }
.table-wrapper { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th {
  padding: 12px 16px; text-align: left; font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted);
  border-bottom: 1px solid var(--border-color); white-space: nowrap;
}
.data-table td {
  padding: 12px 16px; border-bottom: 1px solid rgba(99,102,241,0.07);
  color: var(--text-secondary);
}
.data-table tr:hover td { background: rgba(99,102,241,0.03); }
.data-table .text-cell { max-width: 350px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Badges ===== */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600;
}
.badge-positif { background: var(--positif-bg); color: var(--positif); }
.badge-negatif { background: var(--negatif-bg); color: var(--negatif); }
.badge-netral { background: var(--netral-bg); color: var(--netral); }
.badge-success { background: var(--positif-bg); color: var(--positif); }
.badge-warning { background: var(--netral-bg); color: var(--netral); }

/* ===== Delete Button ===== */
.btn-delete {
  padding: 6px 10px; border-radius: 8px; font-size: 13px;
  background: rgba(239,68,68,0.1); color: var(--negatif); transition: var(--transition);
}
.btn-delete:hover { background: var(--negatif); color: #fff; }

/* ===== Pagination ===== */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 6px; padding: 20px 0;
}
.page-btn {
  padding: 8px 14px; border-radius: 8px; font-size: 13px; font-weight: 500;
  background: rgba(15,23,42,0.5); color: var(--text-secondary); transition: var(--transition);
}
.page-btn:hover { background: rgba(99,102,241,0.15); color: var(--text-primary); }
.page-btn.active { background: var(--accent); color: #fff; }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ===== Empty State ===== */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-icon { font-size: 48px; color: var(--text-muted); margin-bottom: 16px; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); font-size: 14px; margin-bottom: 20px; }

/* ===== Premium Background Glow ===== */
body {
  background: radial-gradient(circle at 50% 50%, #1e293b 0%, #0f172a 100%);
  background-attachment: fixed;
}

/* ===== Stats Grid & Cards ===== */
.stats-grid { 
  display: grid; 
  grid-template-columns: repeat(4, 1fr); 
  gap: 20px; 
  margin-bottom: 40px; 
}
.glass-card {
  background: rgba(30, 41, 59, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  transition: 0.5s;
}
.glass-card:hover::before { left: 100%; }

.glass-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.stat-card {
  padding: 30px 24px;
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 15px;
}

/* Specific Neon Accents */
.stat-card-total { border-bottom: 3px solid #6366f1; }
.stat-card-positif { border-bottom: 3px solid #10b981; }
.stat-card-netral { border-bottom: 3px solid #f59e0b; }
.stat-card-negatif { border-bottom: 3px solid #ef4444; }

.stat-icon {
  width: 60px; height: 60px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  background: rgba(255,255,255,0.03);
  margin-bottom: 5px;
}

.stat-value { 
  font-size: 36px; 
  font-weight: 800; 
  background: linear-gradient(to bottom, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1; 
}
.stat-label { 
  font-size: 11px; 
  font-weight: 700; 
  color: var(--text-muted); 
  text-transform: uppercase; 
  letter-spacing: 1.5px; 
}
.stat-icon {
  width: 56px; height: 56px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.stat-info { display: flex; flex-direction: column; gap: 4px; }
.stat-value { font-size: 28px; font-weight: 800; color: #fff; line-height: 1; }
.stat-label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.btn-accent {
  background: linear-gradient(135deg, #6366f1, #a855f7);
  border: none;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
  animation: pulse-glow 2s infinite;
  padding: 15px 30px;
  font-weight: 700;
  letter-spacing: 1px;
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(99, 102, 241, 0); }
  100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

.btn-accent:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
}

.stat-icon-total { background: rgba(99,102,241,0.15); color: var(--accent-light); }
.stat-icon-positif { background: var(--positif-bg); color: var(--positif); }
.stat-icon-netral { background: var(--netral-bg); color: var(--netral); }
.stat-icon-negatif { background: var(--negatif-bg); color: var(--negatif); }

/* ===== Train Grid ===== */
.train-grid { display: grid; grid-template-columns: 1fr; gap: 24px; max-width: 700px; margin: 0 auto; }

/* ===== Model Info Box ===== */
.model-info-box { 
  margin: 25px 0; 
  background: rgba(15, 23, 42, 0.3);
  border-radius: 16px;
  padding: 10px 20px;
}
.info-row {
  display: flex; justify-content: space-between; padding: 15px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05); font-size: 14px;
}
.info-row:last-child { border-bottom: none; }
.info-label { color: var(--text-muted); font-weight: 500; }
.info-value { font-weight: 700; color: #fff; }

/* ===== Metrics Grid ===== */
.metrics-grid { display: flex; gap: 32px; align-items: flex-start; flex-wrap: wrap; }
.metric-card { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.metric-label { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.metric-details { flex: 1; min-width: 280px; }
.metric-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.metric-table th, .metric-table td { padding: 8px 12px; text-align: center; }
.metric-table th { color: var(--text-muted); font-size: 11px; text-transform: uppercase; border-bottom: 1px solid var(--border-color); }
.metric-table td { border-bottom: 1px solid rgba(99,102,241,0.07); }

/* ===== Confusion Matrix ===== */
.confusion-section { margin-top: 28px; }
.section-subtitle { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.confusion-matrix { display: inline-grid; gap: 4px; }
.cm-cell {
  padding: 12px 20px; text-align: center; border-radius: 8px;
  font-size: 14px; font-weight: 600;
}
.cm-header { background: rgba(99,102,241,0.1); color: var(--accent-light); font-size: 12px; }
.cm-value { background: rgba(15,23,42,0.5); }
.cm-diagonal { background: rgba(16,185,129,0.15); color: var(--positif); }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 1000;
  padding: 14px 24px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500; color: #fff;
  animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
}
.toast-success { background: var(--positif); }
.toast-error { background: var(--negatif); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateY(10px); } }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 32px 24px; text-align: center;
}
.footer-text { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; justify-content: center; gap: 8px; }
.footer-icon { color: var(--accent-light); }
.footer-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.main-content { padding-top: 64px; min-height: calc(100vh - 120px); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg-secondary); flex-direction: column; padding: 16px; border-bottom: 1px solid var(--border-color); }
  .nav-links.show { display: flex; }
  .nav-toggle { display: block; }
  .nav-status { display: none; }
  .hero-title { font-size: 28px; }
  .train-grid, .stats-grid { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; }
  .filter-buttons { flex-wrap: wrap; }
  .result-header { flex-direction: column; align-items: flex-start; }
}

/* ===== Predict Card ===== */
.predict-card { max-width: 700px; margin: 0 auto; }

/* ===== Upload Area ===== */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  background: rgba(99, 102, 241, 0.02);
}
.upload-area:hover {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.05);
}
.upload-icon {
  font-size: 40px;
  color: var(--accent-light);
  margin-bottom: 16px;
}
.upload-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}
.mb-4 { margin-bottom: 24px; }
.mt-3 { margin-top: 16px; }

/* ===== History Table (Training Logs) ===== */
.history-table {
  width: 100%;
  border-collapse: collapse;
}
.history-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.history-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--text-secondary);
}
.history-table tr:hover td {
  background: rgba(99, 102, 241, 0.03);
}