:root {
  --primary-red: #BF0000;
  --accent-red: #FF3333;
  --dark-bg: #121212;
  --card-bg: #1E1E1E;
  --input-bg: #2A2A2A;
  --border-color: #333333;
  --text-light: #FFFFFF;
  --text-muted: #B0B0B0;
  --font-main: 'Poppins', sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--dark-bg);
  color: var(--text-light);
  line-height: 1.6;
  padding-bottom: 40px;
}

/* Header */
.app-header {
  background: linear-gradient(135deg, #000000, var(--primary-red));
  padding: 24px 16px;
  text-align: center;
  border-bottom: 2px solid var(--primary-red);
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.logo-icon {
  font-size: 2rem;
}

.app-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-light);
}

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

/* Container & Cards */
.container {
  max-width: 900px;
  margin: 20px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.welcome-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--card-bg);
  border-left: 4px solid var(--accent-red);
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.bot-avatar {
  font-size: 2.2rem;
}

.welcome-text p {
  font-size: 1rem;
  font-weight: 400;
}

.form-card {
  background-color: var(--card-bg);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.form-card h2 {
  font-size: 1.2rem;
  margin-bottom: 4px;
  color: var(--accent-red);
}

.form-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 24px 0;
}

/* Form Inputs - Free Time Grid */
.freetime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.day-input {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.day-input label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
}

input[type="text"],
input[type="number"],
input[type="datetime-local"] {
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-light);
  padding: 10px 12px;
  border-radius: 6px;
  font-family: var(--font-main);
  font-size: 0.9rem;
  transition: border 0.2s ease;
}

input:focus {
  outline: none;
  border-color: var(--accent-red);
}

/* Tasks Container */
.task-item {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--border-color);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  position: relative;
  align-items: end;
}

.task-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.task-field label {
  font-size: 0.8rem;
  font-weight: 600;
}

/* Buttons */
.btn {
  padding: 10px 18px;
  border-radius: 6px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--primary-red);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--accent-red);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--input-bg);
  color: var(--text-light);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: #3A3A3A;
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  color: var(--text-light);
  border-color: var(--text-light);
}

.btn-danger-sm {
  background-color: #5A1010;
  color: var(--text-light);
  border: 1px solid #901C1C;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  height: 40px;
}

.btn-danger-sm:hover {
  background-color: var(--primary-red);
}

.form-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Tabel Hasil */
.result-section h2,
.chat-section h2 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--text-light);
}

.table-responsive {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--card-bg);
}

table th, table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

table th {
  background-color: var(--primary-red);
  color: #FFFFFF;
  font-weight: 600;
}

table tr:hover {
  background-color: rgba(255, 51, 51, 0.05);
}

table td:first-child {
  font-weight: 600;
  color: var(--accent-red);
  width: 20%;
}

/* Chat History */
.chat-box {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  max-height: 450px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: 12px;
  word-wrap: break-word;
  line-height: 1.5;
  font-size: 0.9rem;
}

.chat-user {
  align-self: flex-end;
  background-color: var(--primary-red);
  color: #FFFFFF;
  border-bottom-right-radius: 2px;
}

.chat-bot {
  align-self: flex-start;
  background-color: #2A2A2A;
  color: var(--text-light);
  border-bottom-left-radius: 2px;
  border: 1px solid var(--border-color);
}

/* Loading Indicator */
.loading-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-red);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 10px;
}

.dots span {
  animation: bounce 1.4s infinite ease-in-out both;
  display: inline-block;
}

.dots span:nth-child(1) { animation-delay: -0.32s; }
.dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* Footer */
.app-footer {
  text-align: center;
  margin-top: 30px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Responsive Web/Mobile Adjustments */
@media (max-width: 600px) {
  .app-header h1 {
    font-size: 1.5rem;
  }
  
  .chat-bubble {
    max-width: 92%;
  }

  .form-buttons {
    flex-direction: column-reverse;
  }

  .btn {
    width: 100%;
  }
}