/* Modern Design System - Variables */
:root {
  /* Colors */
  --primary-color: #0284c7;
  --primary-hover: #0369a1;
  --background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  --surface: rgba(30, 41, 59, 0.7);
  --surface-hover: rgba(30, 41, 59, 0.9);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: rgba(148, 163, 184, 0.1);
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  
  /* Shadows */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.1);
  
  /* Other */
  --border-radius: 16px;
  --transition: all 0.2s ease;
}

/* Global Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* Layout - Main Grid and Columns */
main {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 2rem;
  padding: 2rem;
}

widget-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
  min-width: 280px;
  max-width: 360px;
}

/* Header */
h1 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

/* Widget Block Container */
widget-block {
  background: var(--surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  overflow: hidden;
  height: fit-content;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

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

/* Widget Headers */
widget-block::part(header),
widget-column::part(header) {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 1.25rem;
  background: transparent;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Buttons */
button {
  background-color: var(--surface);
  color: var(--text-primary);
  font-weight: 500;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

button:hover {
  background-color: var(--surface-hover);
  border-color: var(--primary-color);
}

button.primary {
  background-color: var(--primary-color);
  color: white;
  border: none;
}

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

button:disabled {
  background-color: var(--surface-hover);
  border-color: var(--border-color);
  color: var(--text-secondary);
  cursor: not-allowed;
}

button.primary {
  background-image: linear-gradient(145deg,#1992ff 0%,#065bcc 100%);
}
button.primary:hover {
  background-image: linear-gradient(145deg,#0678e6 0%,#044aa5 100%);
}


/* Cards inside widgets */
.card {
  padding: 1.25rem;
}

/* Weather Widget Specific */
weather-widget {
  .card {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }

  h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
  }

  .temp {
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    color: var(--text-primary) !important;
    margin: 1rem 0 !important;
  }

  .wind {
    font-size: 0.875rem !important;
    color: var(--text-secondary) !important;
  }

  .updated {
    font-size: 0.75rem !important;
    color: var(--text-secondary) !important;
    margin-top: 0.5rem !important;
  }
}

/* Sensor Display Widget Specific */
sensor-display {
  .sensor-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .sensor-card {
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
  }

  .sensor-card:hover {
    transform: translateY(-2px);
    background: rgba(0, 0, 0, 0.3);
  }

  .temperature {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .humidity {
    font-size: 1.25rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .sensor-history {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
  }

  .history-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
  }

  .history-list {
    display: grid;
    gap: 0.75rem;
  }

  .history-item {
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .history-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
  }

  .history-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
  }
}

/* Device Controller Widget Specific */
device-controller-widget {
  .device-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .device-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
  }

  .device-item:hover {
    transform: translateY(-2px);
    background: rgba(0, 0, 0, 0.3);
  }

  .device-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .device-name {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
  }

  .device-location {
    font-size: 0.75rem;
    color: var(--text-secondary);
  }

  .device-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  button {
    min-width: 80px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
  }

  button[data-status="on"] {
    background: var(--success);
    color: white;
    border: none;
  }
}

/* Todo Widget Specific */
todo-widget {
  .todo-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .todo-form {
    margin-bottom: 1.5rem;
  }

  .todo-input-group {
    display: flex;
    gap: 0.75rem;
  }

  input[type="text"] {
    flex: 1;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.875rem;
  }

  input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(0, 0, 0, 0.3);
  }

  .todo-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
  }

  .todo-item:hover {
    transform: translateY(-2px);
    background: rgba(0, 0, 0, 0.3);
  }

  .todo-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    position: relative;
  }

  .todo-checkbox[checked]::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--success);
    font-size: 14px;
  }

  .todo-text {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-primary);
  }

  .todo-actions {
    display: flex;
    gap: 0.5rem;
  }

  .todo-delete {
    color: var(--error);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    opacity: 0.7;
    transition: var(--transition);
  }

  .todo-delete:hover {
    opacity: 1;
  }
}

/* Login Widget */
login-widget {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

/* Ad Widget */
ad-widget {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
}

ad-widget:hover {
  transform: translateY(-2px);
  background: rgba(0, 0, 0, 0.3);
}

/* Status Indicators */
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

.status.success {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 10%, transparent);
}

.status.warning {
  color: var(--warning);
  background: color-mix(in srgb, var(--warning) 10%, transparent);
}

.status.error {
  color: var(--error);
  background: color-mix(in srgb, var(--error) 10%, transparent);
}

/* Forms */
input, select, textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--surface);
  color: var(--text-primary);
  font-size: 0.875rem;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Lists */
ul, ol {
  list-style: none;
}

/* Responsive Adjustments */
@media screen and (max-width: 768px) {
  widget-block {
    margin-bottom: 1rem;
  }

  button {
    padding: 0.5rem 0.75rem;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--background);
}

::-webkit-scrollbar-thumb {
  background: var(--text-secondary);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

@media screen and (max-width: 900px) {
  main {
    flex-direction: column;
    align-items: center;
    padding: 1rem;
  }

  widget-column {
    max-width: 100%;
  }

  widget-block,
  weather-widget,
  sensor-display,
  device-controller-widget,
  todo-widget,
  ad-widget {
    width: 100%;
  }

  button {
    width: 100%;
    justify-content: center;
  }
}

@media screen and (max-width: 600px) {
  header {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
  }
}

   @media (max-height: 500px) and (orientation: landscape) {
    .sidebar ad-widget {
      max-height: 110px !important;
      overflow: hidden !important;
      opacity: .85;
    }
  }

@media screen and (max-width: 900px) and (orientation: landscape) {
  ad-widget {
    display: none !important;
  }
}