/**
 * Secure FileShare DateTime Picker
 * Production-grade datetime picker matching the secure.fileshare.ovh design
 * Author: FileShare Team
 * Version: 1.0.0
 */

/* CSS Variables for theming */
:root {
  --sfsp-primary-bg: linear-gradient(145deg, #ffe066 0%, #ffd633 50%, #ffcc00 100%);
  --sfsp-secondary-bg: #fff9e6;
  --sfsp-accent-color: #0088bb;
  --sfsp-accent-hover: #006699;
  --sfsp-border-color: #cccccc;
  --sfsp-border-radius: 12px;
  --sfsp-text-color: #333333;
  --sfsp-label-color: #0088bb;
  --sfsp-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  --sfsp-input-bg: #ffffff;
  --sfsp-selected-bg: #0088bb;
  --sfsp-selected-text: #ffffff;
  --sfsp-today-border: #0088bb;
  --sfsp-hover-bg: #e6f4fa;
  --sfsp-disabled-color: #cccccc;
  --sfsp-font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Main container */
.sfsp-datetime-picker {
  font-family: var(--sfsp-font-family);
  position: relative;
  display: inline-block;
}

/* Inline container with label on left */
.sfsp-inline-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Label styling */
.sfsp-label {
  font-weight: bold;
  font-family: Questrial, sans-serif;
  color: #006BFD;
  font-size: 14px;
  white-space: nowrap;
}

/* Input container */
.sfsp-input-wrapper {
  position: relative;
  flex: 1;
}

.sfsp-input {
  width: 100%;
  padding: 12px 45px 12px 15px;
  font-size: 15px;
  font-family: var(--sfsp-font-family);
  border: 2px solid var(--sfsp-border-color);
  border-radius: 8px;
  background: var(--sfsp-input-bg);
  color: var(--sfsp-text-color);
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}

.sfsp-input:hover {
  border-color: var(--sfsp-accent-color);
}

.sfsp-input:focus {
  outline: none;
  border-color: var(--sfsp-accent-color);
  box-shadow: 0 0 0 3px rgba(0, 136, 187, 0.15);
}

.sfsp-input::placeholder {
  color: #999999;
}

/* Calendar icon button */
.sfsp-toggle-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border: none;
  background: var(--sfsp-accent-color);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.sfsp-toggle-btn:hover {
  background: var(--sfsp-accent-hover);
}

.sfsp-toggle-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.sfsp-toggle-btn svg {
  width: 18px;
  height: 18px;
  fill: white;
}

/* Dropdown calendar */
.sfsp-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--sfsp-input-bg);
  border: 2px solid var(--sfsp-border-color);
  border-radius: var(--sfsp-border-radius);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.25s ease;
}

.sfsp-dropdown.sfsp-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Calendar header */
.sfsp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 15px;
  background: linear-gradient(145deg, #ffe066, #ffcc00);
  border-radius: 10px 10px 0 0;
  border-bottom: 1px solid var(--sfsp-border-color);
}

.sfsp-nav-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
  color: var(--sfsp-accent-color);
  font-weight: bold;
  font-size: 18px;
}

.sfsp-nav-btn:hover {
  background: rgba(255, 255, 255, 0.8);
}

.sfsp-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sfsp-month-year {
  font-weight: 600;
  font-size: 16px;
  color: var(--sfsp-accent-color);
  cursor: pointer;
  padding: 4px 12px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.sfsp-month-year:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* Weekdays header */
.sfsp-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 10px 10px 5px;
  background: var(--sfsp-secondary-bg);
}

.sfsp-weekday {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--sfsp-accent-color);
  text-transform: uppercase;
}

/* Days grid */
.sfsp-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 5px 10px 10px;
  gap: 4px;
}

.sfsp-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  color: var(--sfsp-text-color);
}

.sfsp-day:hover:not(.sfsp-disabled):not(.sfsp-other-month) {
  background: var(--sfsp-hover-bg);
}

.sfsp-day.sfsp-today {
  border: 2px solid var(--sfsp-today-border);
  font-weight: 600;
}

.sfsp-day.sfsp-selected {
  background: var(--sfsp-selected-bg);
  color: var(--sfsp-selected-text);
  font-weight: 600;
}

.sfsp-day.sfsp-other-month {
  color: var(--sfsp-disabled-color);
}

.sfsp-day.sfsp-disabled {
  color: var(--sfsp-disabled-color);
  cursor: not-allowed;
}

/* Time picker section */
.sfsp-time-section {
  padding: 12px 15px;
  border-top: 1px solid var(--sfsp-border-color);
  background: var(--sfsp-secondary-bg);
}

.sfsp-time-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--sfsp-accent-color);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.sfsp-time-inputs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.sfsp-time-input {
  width: 60px;
  padding: 8px;
  font-size: 18px;
  font-family: var(--sfsp-font-family);
  font-weight: 600;
  text-align: center;
  border: 2px solid var(--sfsp-border-color);
  border-radius: 8px;
  background: var(--sfsp-input-bg);
  color: var(--sfsp-text-color);
  transition: border-color 0.2s ease;
}

.sfsp-time-input:focus {
  outline: none;
  border-color: var(--sfsp-accent-color);
}

.sfsp-time-separator {
  font-size: 20px;
  font-weight: 600;
  color: var(--sfsp-accent-color);
}

/* Footer actions */
.sfsp-footer {
  display: flex;
  gap: 10px;
  padding: 12px 15px;
  border-top: 1px solid var(--sfsp-border-color);
  background: linear-gradient(145deg, #ffe066, #ffcc00);
  border-radius: 0 0 10px 10px;
}

.sfsp-btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--sfsp-font-family);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sfsp-btn-clear {
  background: rgba(255, 255, 255, 0.6);
  color: var(--sfsp-text-color);
}

.sfsp-btn-clear:hover {
  background: rgba(255, 255, 255, 0.9);
}

.sfsp-btn-today {
  background: rgba(255, 255, 255, 0.6);
  color: var(--sfsp-accent-color);
}

.sfsp-btn-today:hover {
  background: rgba(255, 255, 255, 0.9);
}

.sfsp-btn-confirm {
  background: var(--sfsp-accent-color);
  color: white;
}

.sfsp-btn-confirm:hover {
  background: var(--sfsp-accent-hover);
}

/* Month/Year picker view */
.sfsp-month-grid,
.sfsp-year-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 15px;
}

.sfsp-month-item,
.sfsp-year-item {
  padding: 12px 8px;
  text-align: center;
  font-size: 14px;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  color: var(--sfsp-text-color);
}

.sfsp-month-item:hover,
.sfsp-year-item:hover {
  background: var(--sfsp-hover-bg);
}

.sfsp-month-item.sfsp-selected,
.sfsp-year-item.sfsp-selected {
  background: var(--sfsp-selected-bg);
  color: var(--sfsp-selected-text);
  font-weight: 600;
}

.sfsp-month-item.sfsp-current,
.sfsp-year-item.sfsp-current {
  border: 2px solid var(--sfsp-today-border);
  font-weight: 600;
}

/* Accessibility */
.sfsp-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Responsive adjustments */
@media (max-width: 400px) {
  .sfsp-datetime-picker {
    max-width: 100%;
  }
  
  .sfsp-dropdown {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: calc(100% - 20px);
    max-width: 360px;
    max-height: 90vh;
    overflow-y: auto;
  }
  
  .sfsp-dropdown.sfsp-open {
    transform: translate(-50%, -50%);
  }
}

/* Animation keyframes */
@keyframes sfsp-fade-in {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
  .sfsp-datetime-picker[data-theme="auto"] {
    --sfsp-primary-bg: linear-gradient(145deg, #3d3d00 0%, #4d4d00 50%, #5c5c00 100%);
    --sfsp-secondary-bg: #2d2d00;
    --sfsp-input-bg: #1a1a00;
    --sfsp-text-color: #f0f0f0;
    --sfsp-border-color: #555500;
  }
}