/* ==========================================
   Calendar Blockify - Liquid Glass Styles
   ========================================== */

/* Google Fonts - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables */
:root {
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --glass-blur: 12px;

  --accent-violet: rgb(139, 92, 246);
  --accent-indigo: rgb(99, 102, 241);
  --accent-rose: rgb(244, 63, 94);

  --text-primary: rgb(255, 255, 255);
  --text-secondary: rgb(148, 163, 184);
  --text-muted: rgb(100, 116, 139);
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Animations */
@keyframes gradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(139, 92, 246, 0.3); }
  50% { box-shadow: 0 0 40px rgba(139, 92, 246, 0.5); }
}

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

/* Glass Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 1.25rem;
  box-shadow: var(--glass-shadow);
  transition: all 0.3s ease;
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

/* Glass Buttons */
.glass-button {
  position: relative;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.8), rgba(99, 102, 241, 0.8));
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.875rem;
  color: white;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.glass-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.glass-button:hover::before {
  left: 100%;
}

.glass-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(139, 92, 246, 0.4);
  border-color: rgba(255, 255, 255, 0.3);
}

.glass-button:active {
  transform: translateY(0);
}

.glass-button-secondary {
  position: relative;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.875rem;
  color: white;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
}

.glass-button-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.glass-button-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.glass-button-small {
  padding: 0.625rem 1.25rem;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.6), rgba(99, 102, 241, 0.6));
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0.75rem;
  color: white;
  font-weight: 500;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.glass-button-small:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.8), rgba(99, 102, 241, 0.8));
  border-color: rgba(255, 255, 255, 0.25);
}

/* Glass Inputs */
.glass-input {
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.75rem;
  color: white;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  outline: none;
}

.glass-input::placeholder {
  color: rgba(148, 163, 184, 0.6);
}

.glass-input:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.glass-input:focus {
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
  background: rgba(0, 0, 0, 0.3);
}

/* Glass Select */
.glass-select {
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.75rem;
  color: white;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1.25rem;
}

.glass-select:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.glass-select:focus {
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.glass-select option {
  background: rgb(30, 41, 59);
  color: white;
  padding: 0.5rem;
}

/* Glass Radio */
.glass-radio {
  appearance: none;
  width: 1.125rem;
  height: 1.125rem;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.glass-radio:checked {
  border-color: var(--accent-violet);
  background: var(--accent-violet);
}

.glass-radio:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: white;
  border-radius: 50%;
}

.glass-radio:hover {
  border-color: rgba(139, 92, 246, 0.5);
}

/* Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 2rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgb(52, 211, 153);
}

/* Calendar Container */
.calendar-container {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(139, 92, 246, 0.3) transparent;
}

.calendar-container::-webkit-scrollbar {
  height: 8px;
}

.calendar-container::-webkit-scrollbar-track {
  background: transparent;
}

.calendar-container::-webkit-scrollbar-thumb {
  background: rgba(139, 92, 246, 0.3);
  border-radius: 4px;
}

.calendar-container::-webkit-scrollbar-thumb:hover {
  background: rgba(139, 92, 246, 0.5);
}

/* Calendar Grid */
.calendar-grid {
  display: grid;
  min-width: max-content;
}

.calendar-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.calendar-header-cell {
  padding: 1rem;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.calendar-header-cell:last-child {
  border-right: none;
}

.calendar-day-name {
  font-weight: 600;
  color: white;
  font-size: 0.875rem;
}

.calendar-day-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.calendar-time-column {
  position: sticky;
  left: 0;
  z-index: 10;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(8px);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.calendar-time-cell {
  height: 3.5rem;
  padding: 0 1rem;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-top: 0.25rem;
}

.calendar-day-column {
  position: relative;
  border-right: 1px solid rgba(255, 255, 255, 0.03);
}

.calendar-day-column:last-child {
  border-right: none;
}

.calendar-hour-row {
  height: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.calendar-hour-row:last-child {
  border-bottom: none;
}

/* Busy Blocks */
.busy-block {
  position: absolute;
  left: 4px;
  right: 4px;
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.7), rgba(236, 72, 153, 0.7));
  border: 1px solid rgba(244, 63, 94, 0.4);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  box-shadow: 0 2px 8px rgba(244, 63, 94, 0.3);
  backdrop-filter: blur(4px);
  overflow: hidden;
  transition: all 0.2s ease;
  animation: slide-up 0.3s ease-out;
}

.busy-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.busy-block:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.4);
  z-index: 5;
}

.busy-block-small {
  font-size: 0.625rem;
}

/* Personal Time Blocks (evenings & weekends) */
.personal-time-block {
  position: absolute;
  left: 4px;
  right: 4px;
  background: linear-gradient(135deg, rgba(71, 85, 105, 0.6), rgba(51, 65, 85, 0.6));
  border: 1px solid rgba(100, 116, 139, 0.3);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(148, 163, 184, 0.9);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(4px);
  overflow: hidden;
  z-index: 1;
}

.personal-time-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

/* Today Highlight */
.today-column {
  background: rgba(139, 92, 246, 0.05);
}

.today-header {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(99, 102, 241, 0.2));
  border-radius: 0.5rem;
  margin: -0.25rem;
  padding: 0.25rem;
}

/* Loading State */
.loading-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid rgba(139, 92, 246, 0.3);
  border-top-color: var(--accent-violet);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
  .glass-card {
    border-radius: 1rem;
  }

  .glass-button, .glass-button-secondary {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }

  .calendar-header-cell {
    padding: 0.75rem 0.5rem;
  }

  .calendar-day-name {
    font-size: 0.75rem;
  }

  .calendar-time-cell {
    padding: 0 0.5rem;
    font-size: 0.625rem;
  }

  .busy-block {
    font-size: 0.625rem;
    left: 2px;
    right: 2px;
  }
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--accent-violet);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: rgba(139, 92, 246, 0.3);
  color: white;
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}