:root {
  --bg-main: #0a0e14;
  --bg-card: #161b22;
  --bg-input: #0d1117;
  --text-main: #c9d1d9;
  --text-muted: #8b949e;
  --accent-info: #58a6ff;
  --accent-success: #3fb950;
  --accent-error: #f85149;
  --accent-warning: #d29922;
  --border-color: #30363d;
  --shadow-color: rgba(0, 0, 0, 0.5);
}

body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(at 0% 0%, rgba(88, 166, 255, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(210, 153, 34, 0.05) 0px, transparent 50%);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  margin: 0;
}

.container-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 15px;
}

.main-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  backdrop-filter: blur(20px);
}

.app-title {
  font-family: 'Roboto Condensed', sans-serif;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
  margin-top: 10px;
}

.app-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.text-info-glow {
  color: var(--accent-info);
  filter: drop-shadow(0 0 10px rgba(88, 166, 255, 0.4));
}

/* Calculation Box */
.calculation-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 25px;
}

.section-header {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
}

.input-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px;
  height: 100%;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.input-card:hover {
  border-color: #444c56;
}

.dvr-border { border-top: 4px solid var(--accent-info); }
.official-border { border-top: 4px solid var(--accent-success); }

.input-card-title {
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #fff;
}

/* Form Controls */
.custom-input {
  background: #1c2128 !important;
  border: 1px solid var(--border-color) !important;
  color: #fff !important;
  border-radius: 10px !important;
  padding: 10px 15px !important;
  font-size: 0.95rem !important;
  transition: all 0.2s ease !important;
}

.custom-input:focus {
  border-color: var(--accent-info) !important;
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1) !important;
  background: #22272e !important;
}

.custom-input.sm {
  padding: 6px 10px !important;
  font-size: 0.85rem !important;
}

label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 5px;
}

/* Result Display */
.result-display {
  background: linear-gradient(135deg, rgba(88, 166, 255, 0.05), rgba(63, 185, 80, 0.05));
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  border: 1px dashed var(--border-color);
  transition: all 0.3s ease;
}

.result-display.updated {
  animation: pulseSuccess 0.5s ease-out;
}

@keyframes pulseSuccess {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.4); }
  50% { transform: scale(1.02); box-shadow: 0 0 20px 5px rgba(63, 185, 80, 0.2); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0); }
}

.difference {
  color: var(--accent-warning);
  font-weight: 700;
}

.status-msg {
  font-size: 0.9rem;
  font-weight: 500;
}

.result-text {
  margin-top: 15px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(88, 166, 255, 0.1);
  font-size: 0.9rem;
  text-align: center;
  border-left: 3px solid var(--accent-info);
  animation: slideIn 0.3s ease-out;
}

.adelanto { color: var(--accent-success); }
.retraso { color: var(--accent-error); }

.custom-input.is-invalid {
  border-color: var(--accent-error) !important;
  box-shadow: 0 0 0 3px rgba(248, 81, 73, 0.1) !important;
  background-image: none !important;
}

.custom-input.is-invalid:focus {
  border-color: var(--accent-error) !important;
}

.bg-dark-soft {
  background: #2d333b !important;
  color: var(--text-muted) !important;
  font-weight: 500;
  padding: 5px 12px;
  border: 1px solid var(--border-color);
}

.badge.bg-info {
  background: var(--accent-info) !important;
  color: #fff !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Tool Buttons */
.tool-btn {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-btn:hover {
  transform: translateY(-2px);
  background: #22272e;
}

.btn-dvr:hover { border-color: var(--accent-info); color: var(--accent-info); }
.btn-official:hover { border-color: var(--accent-success); color: var(--accent-success); }
.btn-manual:hover { border-color: var(--accent-warning); color: var(--accent-warning); }

/* Collapsible Panels */
.collapsible-panel {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  animation: slideIn 0.3s ease-out;
}

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

.panel-header {
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  color: #fff;
}

.btn-action-info {
  background: var(--accent-info);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}

.btn-action-info:hover {
  opacity: 0.9;
  color: #fff;
}

/* Manual Offset Grid */
.manual-offset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

/* Responsive */
@media (max-width: 576px) {
  .main-card {
    padding: 20px;
    border-radius: 0;
    border: none;
  }
  
  .container-wrapper {
    padding: 0;
  }
  
  .manual-offset-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* jQuery UI Datepicker Dark Theme Overrides */
.ui-datepicker {
  background: #22272e !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 12px !important;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5) !important;
  color: #adbac7 !important;
}

.ui-datepicker-header {
  background: #2d333b !important;
  border: none !important;
  border-radius: 8px 8px 0 0 !important;
}

.ui-state-default {
  background: transparent !important;
  border: none !important;
  color: #adbac7 !important;
  text-align: center !important;
}

.ui-state-hover {
  background: var(--accent-info) !important;
  color: #fff !important;
  border-radius: 6px !important;
}

.ui-state-active {
  background: var(--accent-success) !important;
  color: #fff !important;
  border-radius: 6px !important;
}