/* assets/css/styles.css - Sistema de Estilos Responsivo y Moderno */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-card-hover: rgba(51, 65, 85, 0.8);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #8b5cf6;
    
    /* Estados de Horas según requerimiento del usuario */
    /* 0 Horas: Color Neutro (Gris) */
    --badge-neutral-bg: rgba(148, 163, 184, 0.15);
    --badge-neutral-text: #cbd5e1;
    --badge-neutral-border: rgba(148, 163, 184, 0.3);

    /* 1-4 Horas: Color Amarillo */
    --badge-amber-bg: rgba(245, 158, 11, 0.2);
    --badge-amber-text: #fbbf24;
    --badge-amber-border: rgba(245, 158, 11, 0.4);

    /* 5+ Horas: Color Verde */
    --badge-green-bg: rgba(16, 185, 129, 0.2);
    --badge-green-text: #34d399;
    --badge-green-border: rgba(16, 185, 129, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    padding-bottom: 2rem;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem;
}

/* ==========================================
   HEADER & NAVBAR
   ========================================== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
}

/* ==========================================
   BOTONES Y CONTROLES
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #2563eb);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.3);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    border-radius: 6px;
}

/* ==========================================
   LOGIN CARD
   ========================================== */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px);
    padding: 1.5rem;
}

.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

.login-hint {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #93c5fd;
    padding: 0.75rem;
    border-radius: 10px;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: #fff;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* ==========================================
   SELECCIÓN DE TRABAJADOR Y NAVEGACIÓN
   ========================================== */
.controls-bar {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 16px;
}

@media (max-width: 768px) {
    .controls-bar {
        grid-template-columns: 1fr;
    }
}

.worker-selector-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.worker-select {
    padding: 0.75rem 1rem;
    font-size: 1.05rem;
    font-weight: 600;
    background: rgba(15, 23, 42, 0.8);
    color: #fff;
    border: 1px solid var(--primary);
    border-radius: 10px;
    cursor: pointer;
}

.date-navigator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.month-year-display {
    font-size: 1.1rem;
    font-weight: 700;
    min-width: 170px;
    text-align: center;
}

/* ==========================================
   TARJETAS DE RESUMEN
   ========================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 14px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.stat-icon.green { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.stat-icon.amber { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.stat-icon.purple { background: rgba(139, 92, 246, 0.2); color: #c084fc; }
.stat-icon.neutral { background: rgba(148, 163, 184, 0.2); color: #cbd5e1; }

.hours-input-display {
    font-size: 1.1rem;
    font-weight: 700;
    background: rgba(15, 23, 42, 0.5) !important;
    cursor: not-allowed;
    transition: all 0.2s ease;
}

.hours-input-display.color-neutral {
    color: var(--badge-neutral-text) !important;
    border-color: var(--badge-neutral-border) !important;
}

.hours-input-display.color-amber {
    color: var(--badge-amber-text) !important;
    border-color: var(--badge-amber-border) !important;
}

.hours-input-display.color-green {
    color: var(--badge-green-text) !important;
    border-color: var(--badge-green-border) !important;
}

.stat-info h4 {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-info .value {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 0.2rem;
}

/* ==========================================
   LEYENDA DE COLORES
   ========================================== */
.legend-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: rgba(30, 41, 59, 0.4);
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.legend-color {
    width: 14px;
    height: 14px;
    border-radius: 4px;
}

.legend-color.neutral { background: var(--badge-neutral-bg); border: 1px solid var(--badge-neutral-border); }
.legend-color.amber { background: var(--badge-amber-bg); border: 1px solid var(--badge-amber-border); }
.legend-color.green { background: var(--badge-green-bg); border: 1px solid var(--badge-green-border); }

/* ==========================================
   CALENDARIO GRID
   ========================================== */
.calendar-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.calendar-header-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.75rem;
}

.calendar-days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

@media (max-width: 640px) {
    .calendar-days-grid {
        gap: 0.35rem;
    }
}

.day-cell {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    min-height: 95px;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.day-cell:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    background: rgba(30, 41, 59, 0.9);
}

.day-cell.empty {
    background: transparent;
    border-color: transparent;
    cursor: default;
}

.day-cell.empty:hover {
    transform: none;
}

.day-cell.today {
    border: 2px solid var(--primary);
}

.day-number {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-main);
}

.day-cell.today .day-number {
    color: #60a5fa;
}

.day-shift-time {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Badges de Horas según requerimiento de 3 colores */
.hours-badge {
    align-self: flex-start;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    border: 1px solid transparent;
    margin-top: 0.3rem;
}

.hours-badge.badge-neutral {
    background: var(--badge-neutral-bg);
    color: var(--badge-neutral-text);
    border-color: var(--badge-neutral-border);
}

.hours-badge.badge-amber {
    background: var(--badge-amber-bg);
    color: var(--badge-amber-text);
    border-color: var(--badge-amber-border);
}

.hours-badge.badge-green {
    background: var(--badge-green-bg);
    color: var(--badge-green-text);
    border-color: var(--badge-green-border);
}

/* ==========================================
   MODALES Y OVERLAYS
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 100%;
    max-width: 500px;
    padding: 1.75rem;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.modal-overlay.active .modal-card {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

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

.close-btn:hover {
    color: #fff;
}

.quick-presets {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.preset-chip {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.35rem 0.7rem;
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-chip:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--primary);
}

/* ==========================================
   TABLA DE TRABAJADORES
   ========================================== */
.workers-list {
    margin-top: 1rem;
    max-height: 250px;
    overflow-y: auto;
}

.worker-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 0.5rem;
}

/* ==========================================
   DISEÑO RESPONSIVO (MÓVIL, TABLET, LAPTOP)
   ========================================== */
@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
    }

    .brand {
        font-size: 1.1rem;
    }

    .brand-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }

    .nav-actions {
        width: 100%;
        justify-content: space-between;
        gap: 0.5rem;
        flex-wrap: wrap;
    }

    .user-badge {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }

    .btn-sm {
        padding: 0.35rem 0.6rem;
        font-size: 0.78rem;
    }

    .controls-bar {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem;
    }

    .date-navigator {
        justify-content: space-between;
        width: 100%;
    }

    .month-year-display {
        min-width: auto;
        font-size: 0.95rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .stat-card {
        padding: 0.85rem;
        gap: 0.6rem;
    }

    .stat-icon {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }

    .stat-info .value {
        font-size: 1.1rem;
    }

    .legend-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .legend-items {
        gap: 0.75rem;
    }

    .day-cell {
        min-height: 70px;
        padding: 0.35rem;
    }

    .day-number {
        font-size: 0.85rem;
    }

    .day-shift-time {
        font-size: 0.65rem;
    }

    .hours-badge {
        padding: 0.15rem 0.35rem;
        font-size: 0.68rem;
    }

    .time-inputs-grid {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .brand span {
        font-size: 1rem;
    }

    .modal-card {
        padding: 1.25rem;
        max-width: 100%;
        border-radius: 16px;
    }

    .user-badge {
        font-size: 0.75rem;
    }
}