:root {
    /* Color Palette - User Custom Aesthetics */
    --nile-blue: #193746;     /* Fondo principal / Headers */
    --chandon: #ced3b0;       /* Texto destacado / Detalles */
    --pastel-blue: #a2b9bc;   /* Días normales */
    --coral: #ff7f50;         /* Alert / Excepciones */
    --kashmir-blue: #4e6e8e;  /* Botones / Selección */

    /* Semantic mapping for existing UI */
    --bg-dark: var(--nile-blue);
    --bg-card: #142c38;       /* Ligeramente más oscuro que nile-blue para contraste de tarjetas */
    --bg-card-hover: #10232c;
    --primary-blue: var(--kashmir-blue);
    --primary-blue-dark: #3a536b;
    --accent-orange: var(--coral);
    --success-green: #89b07a; /* Verde más sutil que combine con la nueva paleta pastel */
    --danger-red: var(--coral);
    
    --text-main: var(--chandon);
    --text-muted: var(--pastel-blue);
    --border-color: rgba(162, 185, 188, 0.2);
    
    --border-radius: 12px;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'Orbitron', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--nile-blue);
    color: var(--chandon);
    -webkit-tap-highlight-color: transparent;
}

.app-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Header & Summary */
.aero-header {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    border-left: 4px solid var(--primary-blue);
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 6px;
}

.btn-install {
    background-color: var(--kashmir-blue);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: opacity 0.2s;
}

.btn-install:active {
    opacity: 0.8;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--text-main);
    letter-spacing: 1px;
}

.logo span {
    color: var(--accent-orange);
}

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

.summary-panel {
    display: flex;
    gap: 16px;
    background-color: rgba(0,0,0,0.2);
    padding: 12px;
    border-radius: 8px;
}

.summary-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.summary-item.highlight {
    border-left: 2px solid var(--accent-orange);
    padding-left: 10px;
}

.summary-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.summary-value {
    font-size: 1.25rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

/* Selector de Personal */
.employee-selector {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
}

.aero-select {
    flex: 1;
    background-color: var(--nile-blue);
    color: var(--chandon);
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-main);
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ced3b0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    cursor: pointer;
}

.aero-select:focus {
    border-color: var(--kashmir-blue);
}

.add-btn {
    background-color: var(--kashmir-blue);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    border-radius: 8px;
    padding: 0;
}

/* Calendar */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-card);
    padding: 12px 16px;
    border-radius: var(--border-radius);
}

#month-year-display {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: capitalize;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--primary-blue);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px 12px;
    border-radius: 6px;
    transition: background 0.2s;
}

.btn-icon:hover {
    background-color: rgba(33, 150, 243, 0.1);
}

.calendar-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 16px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

.weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 8px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.cal-day {
    aspect-ratio: 1;
    background-color: var(--bg-dark);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: transform 0.1s, background 0.2s;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.cal-day:active {
    transform: scale(0.95);
}

.cal-day.empty {
    background: transparent;
    border: none;
    cursor: default;
}

.cal-day .day-num {
    font-size: 1rem;
    font-weight: 600;
    z-index: 2;
}

.cal-day .shift-indicator {
    font-size: 0.65rem;
    color: var(--primary-blue);
    margin-top: 2px;
    font-weight: 500;
    z-index: 2;
}

/* Estado de los turnos */
.cal-day.has-shift {
    border-color: var(--primary-blue);
    background-color: rgba(33, 150, 243, 0.05);
}

.cal-day.completado {
    border-color: var(--success-green);
    background-color: rgba(76, 175, 80, 0.1);
}

.cal-day.completado .shift-indicator {
    color: var(--success-green);
}

/* Para darle un toque de radar/aeropuerto al día completado */
.cal-day.completado::after {
    content: '✔';
    position: absolute;
    top: 2px;
    right: 4px;
    font-size: 0.6rem;
    color: var(--success-green);
    opacity: 0.8;
}

/* Día actual */
.cal-day.today {
    background-color: rgba(255, 152, 0, 0.15);
    border-color: var(--accent-orange);
}

.cal-day.today .day-num {
    color: var(--accent-orange);
}

/* Leyenda */
.legend {
    display: flex;
    justify-content: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.pend-dot { background-color: var(--primary-blue); }
.comp-dot { background-color: var(--success-green); }

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(4px);
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--bg-card);
    width: 90%;
    max-width: 400px;
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border-top: 4px solid var(--accent-orange);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.modal.hidden .modal-content {
    transform: translateY(20px);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

.time-inputs {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.input-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.time-input {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-family: var(--font-mono);
    width: 100%;
    outline: none;
}

.time-input:focus {
    border-color: var(--primary-blue);
}

/* Fix for time input icon in dark mode on Webkit */
::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.modal-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn:active {
    opacity: 0.8;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
}

.btn-danger {
    background-color: transparent;
    color: var(--danger-red);
    border: 1px solid var(--danger-red);
}

/* View Toggles */
.view-toggles {
    display: flex;
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 8px;
}

.btn-toggle {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 10px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-toggle.active {
    background-color: var(--nile-blue);
    color: var(--chandon);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Gantt View */
.gantt-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 16px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    overflow-x: auto;
}

.gantt-scroll-area {
    min-width: 600px;
}

.gantt-header {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 12px;
    margin-left: 100px; /* Offset for names */
}

.gantt-hour-label {
    flex: 1;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.gantt-row {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
    height: 40px;
}

.gantt-emp-name {
    width: 100px;
    font-size: 0.8rem;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 8px;
    flex-shrink: 0;
}

.gantt-timeline {
    flex: 1;
    height: 100%;
    background-color: var(--bg-dark);
    border-radius: 6px;
    position: relative;
}

.gantt-bar-personal {
    background-color: var(--kashmir-blue);
    border-left: 4px solid var(--coral);
    position: absolute;
    height: 100%;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    overflow: hidden;
    white-space: nowrap;
}

/* Backup Panel */
.aero-footer {
    margin-top: 20px;
    padding-bottom: 20px;
}

.backup-panel {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 16px;
    border: 1px dashed var(--border-color);
    text-align: center;
}

.backup-title {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.backup-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-backup {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-backup:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--pastel-blue);
}

.btn-backup:active {
    transform: scale(0.98);
}